All files under the same project; Renamed TR5Main to TombEngine; Cleaned repository;

Libs/bass/bass_fx.h

@@ -0,0 +1,443 @@
+/*===========================================================================
+ BASS_FX 2.4 - Copyright (c) 2002-2018 (: JOBnik! :) [Arthur Aminov, ISRAEL]
+                                                     [http://www.jobnik.org]
+
+      bugs/suggestions/questions:
+        forum  : http://www.un4seen.com/forum/?board=1
+                 http://www.jobnik.org/forums
+        e-mail : bass_fx@jobnik.org
+     --------------------------------------------------
+
+ NOTE: This header will work only with BASS_FX version 2.4.12
+       Check www.un4seen.com or www.jobnik.org for any later versions.
+
+ * Requires BASS 2.4 (available at http://www.un4seen.com)
+===========================================================================*/
+
+#ifndef BASS_FX_H
+#define BASS_FX_H
+
+#ifdef __cplusplus
+	extern "C" {
+#endif
+
+#ifndef BASS_FXDEF
+	#define BASS_FXDEF(f) WINAPI f
+#endif
+
+// BASS_CHANNELINFO types
+#define BASS_CTYPE_STREAM_TEMPO		0x1f200
+#define BASS_CTYPE_STREAM_REVERSE	0x1f201
+
+// Tempo / Reverse / BPM / Beat flag
+#define BASS_FX_FREESOURCE			0x10000	// Free the source handle as well?
+
+// BASS_FX Version
+DWORD BASS_FXDEF(BASS_FX_GetVersion)();
+
+/*===========================================================================
+	DSP (Digital Signal Processing)
+===========================================================================*/
+
+/*
+	Multi-channel order of each channel is as follows:
+	 3 channels       left-front, right-front, center.
+	 4 channels       left-front, right-front, left-rear/side, right-rear/side.
+	 5 channels       left-front, right-front, center, left-rear/side, right-rear/side.
+	 6 channels (5.1) left-front, right-front, center, LFE, left-rear/side, right-rear/side.
+	 8 channels (7.1) left-front, right-front, center, LFE, left-rear/side, right-rear/side, left-rear center, right-rear center.
+*/
+
+// DSP channels flags
+#define BASS_BFX_CHANALL	-1				// all channels at once (as by default)
+#define BASS_BFX_CHANNONE	0				// disable an effect for all channels
+#define BASS_BFX_CHAN1		1				// left-front channel
+#define BASS_BFX_CHAN2		2				// right-front channel
+#define BASS_BFX_CHAN3		4				// see above info
+#define BASS_BFX_CHAN4		8				// see above info
+#define BASS_BFX_CHAN5		16				// see above info
+#define BASS_BFX_CHAN6		32				// see above info
+#define BASS_BFX_CHAN7		64				// see above info
+#define BASS_BFX_CHAN8		128				// see above info
+
+// if you have more than 8 channels (7.1), use this macro
+#define BASS_BFX_CHANNEL_N(n) (1<<((n)-1))
+
+// DSP effects
+enum {
+	BASS_FX_BFX_ROTATE = 0x10000,			// A channels volume ping-pong	/ multi channel
+	BASS_FX_BFX_ECHO,						// Echo							/ 2 channels max	(deprecated)
+	BASS_FX_BFX_FLANGER,					// Flanger						/ multi channel		(deprecated)
+	BASS_FX_BFX_VOLUME,						// Volume						/ multi channel
+	BASS_FX_BFX_PEAKEQ,						// Peaking Equalizer			/ multi channel
+	BASS_FX_BFX_REVERB,						// Reverb						/ 2 channels max	(deprecated)
+	BASS_FX_BFX_LPF,						// Low Pass Filter 24dB			/ multi channel		(deprecated)
+	BASS_FX_BFX_MIX,						// Swap, remap and mix channels	/ multi channel
+	BASS_FX_BFX_DAMP,						// Dynamic Amplification		/ multi channel
+	BASS_FX_BFX_AUTOWAH,					// Auto Wah						/ multi channel
+	BASS_FX_BFX_ECHO2,						// Echo 2						/ multi channel		(deprecated)
+	BASS_FX_BFX_PHASER,						// Phaser						/ multi channel
+	BASS_FX_BFX_ECHO3,						// Echo 3						/ multi channel		(deprecated)
+	BASS_FX_BFX_CHORUS,						// Chorus/Flanger				/ multi channel
+	BASS_FX_BFX_APF,						// All Pass Filter				/ multi channel		(deprecated)
+	BASS_FX_BFX_COMPRESSOR,					// Compressor					/ multi channel		(deprecated)
+	BASS_FX_BFX_DISTORTION,					// Distortion					/ multi channel
+	BASS_FX_BFX_COMPRESSOR2,				// Compressor 2					/ multi channel
+	BASS_FX_BFX_VOLUME_ENV,					// Volume envelope				/ multi channel
+	BASS_FX_BFX_BQF,						// BiQuad filters				/ multi channel
+	BASS_FX_BFX_ECHO4,						// Echo	4						/ multi channel
+	BASS_FX_BFX_PITCHSHIFT,					// Pitch shift using FFT		/ multi channel		(not available on mobile)
+	BASS_FX_BFX_FREEVERB					// Reverb using "Freeverb" algo	/ multi channel
+};
+
+/*
+    Deprecated effects in 2.4.10 version:
+	------------------------------------
+	BASS_FX_BFX_ECHO		-> use BASS_FX_BFX_ECHO4
+	BASS_FX_BFX_ECHO2		-> use BASS_FX_BFX_ECHO4
+	BASS_FX_BFX_ECHO3		-> use BASS_FX_BFX_ECHO4
+	BASS_FX_BFX_REVERB		-> use BASS_FX_BFX_FREEVERB
+	BASS_FX_BFX_FLANGER		-> use BASS_FX_BFX_CHORUS
+	BASS_FX_BFX_COMPRESSOR	-> use BASS_FX_BFX_COMPRESSOR2
+	BASS_FX_BFX_APF			-> use BASS_FX_BFX_BQF with BASS_BFX_BQF_ALLPASS filter
+	BASS_FX_BFX_LPF			-> use 2x BASS_FX_BFX_BQF with BASS_BFX_BQF_LOWPASS filter and appropriate fQ values
+*/
+
+// Rotate
+typedef struct {
+	float fRate;							// rotation rate/speed in Hz (A negative rate can be used for reverse direction)
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s (supported only even number of channels)
+} BASS_BFX_ROTATE;
+
+// Echo (deprecated)
+typedef struct {
+	float fLevel;							// [0....1....n] linear
+	int   lDelay;							// [1200..30000]
+} BASS_BFX_ECHO;
+
+// Flanger (deprecated)
+typedef struct {
+	float fWetDry;							// [0....1....n] linear
+	float fSpeed;							// [0......0.09]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_FLANGER;
+
+// Volume
+typedef struct {
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s or 0 for global volume control
+	float fVolume;							// [0....1....n] linear
+} BASS_BFX_VOLUME;
+
+// Peaking Equalizer
+typedef struct {
+	int   lBand;							// [0...............n] more bands means more memory & cpu usage
+	float fBandwidth;						// [0.1...........<10] in octaves - fQ is not in use (Bandwidth has a priority over fQ)
+	float fQ;								// [0...............1] the EE kinda definition (linear) (if Bandwidth is not in use)
+	float fCenter;							// [1Hz..<info.freq/2] in Hz
+	float fGain;							// [-15dB...0...+15dB] in dB (can be above/below these limits)
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_PEAKEQ;
+
+// Reverb (deprecated)
+typedef struct {
+	float fLevel;							// [0....1....n] linear
+	int   lDelay;							// [1200..10000]
+} BASS_BFX_REVERB;
+
+// Low Pass Filter (deprecated)
+typedef struct {
+	float fResonance;						// [0.01...........10]
+	float fCutOffFreq;						// [1Hz...info.freq/2] cutoff frequency
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_LPF;
+
+// Swap, remap and mix
+typedef struct {
+	const int *lChannel;					// an array of channels to mix using BASS_BFX_CHANxxx flag/s (lChannel[0] is left channel...)
+} BASS_BFX_MIX;
+
+// Dynamic Amplification
+typedef struct {
+	float fTarget;							// target volume level						[0<......1] linear
+	float fQuiet; 							// quiet  volume level						[0.......1] linear
+	float fRate;							// amp adjustment rate						[0.......1] linear
+	float fGain;							// amplification level						[0...1...n] linear
+	float fDelay;							// delay in seconds before increasing level	[0.......n] linear
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_DAMP;
+
+// Auto Wah
+typedef struct {
+	float fDryMix;							// dry (unaffected) signal mix				[-2......2]
+	float fWetMix;							// wet (affected) signal mix				[-2......2]
+	float fFeedback;						// output signal to feed back into input	[-1......1]
+	float fRate;							// rate of sweep in cycles per second		[0<....<10]
+	float fRange;							// sweep range in octaves					[0<....<10]
+	float fFreq;							// base frequency of sweep Hz				[0<...1000]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_AUTOWAH;
+
+// Echo 2 (deprecated)
+typedef struct {
+	float fDryMix;							// dry (unaffected) signal mix				[-2......2]
+	float fWetMix;							// wet (affected) signal mix				[-2......2]
+	float fFeedback;						// output signal to feed back into input	[-1......1]
+	float fDelay;							// delay sec								[0<......n]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_ECHO2;
+
+// Phaser
+typedef struct {
+	float fDryMix;							// dry (unaffected) signal mix				[-2......2]
+	float fWetMix;							// wet (affected) signal mix				[-2......2]
+	float fFeedback;						// output signal to feed back into input	[-1......1]
+	float fRate;							// rate of sweep in cycles per second		[0<....<10]
+	float fRange;							// sweep range in octaves					[0<....<10]
+	float fFreq;							// base frequency of sweep					[0<...1000]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_PHASER;
+
+// Echo 3 (deprecated)
+typedef struct {
+	float fDryMix;							// dry (unaffected) signal mix				[-2......2]
+	float fWetMix;							// wet (affected) signal mix				[-2......2]
+	float fDelay;							// delay sec								[0<......n]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_ECHO3;
+
+// Chorus/Flanger
+typedef struct {
+	float fDryMix;							// dry (unaffected) signal mix				[-2......2]
+	float fWetMix;							// wet (affected) signal mix				[-2......2]
+	float fFeedback;						// output signal to feed back into input	[-1......1]
+	float fMinSweep;						// minimal delay ms							[0<...6000]
+	float fMaxSweep;						// maximum delay ms							[0<...6000]
+	float fRate;							// rate ms/s								[0<...1000]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_CHORUS;
+
+// All Pass Filter (deprecated)
+typedef struct {
+	float fGain;							// reverberation time						[-1=<..<=1]
+	float fDelay;							// delay sec								[0<....<=n]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_APF;
+
+// Compressor (deprecated)
+typedef struct {
+	float fThreshold;						// compressor threshold						[0<=...<=1]
+	float fAttacktime;						// attack time ms							[0<.<=1000]
+	float fReleasetime;						// release time ms							[0<.<=5000]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_COMPRESSOR;
+
+// Distortion
+typedef struct {
+	float fDrive;							// distortion drive							[0<=...<=5]
+	float fDryMix;							// dry (unaffected) signal mix				[-5<=..<=5]
+	float fWetMix;							// wet (affected) signal mix				[-5<=..<=5]
+	float fFeedback;						// output signal to feed back into input	[-1<=..<=1]
+	float fVolume;							// distortion volume						[0=<...<=2]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_DISTORTION;
+
+// Compressor 2
+typedef struct {
+	float fGain;							// output gain of signal after compression	[-60....60] in dB
+	float fThreshold;						// point at which compression begins		[-60.....0] in dB
+	float fRatio;							// compression ratio						[1.......n]
+	float fAttack;							// attack time in ms						[0.01.1000]
+	float fRelease;							// release time in ms						[0.01.5000]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_COMPRESSOR2;
+
+// Volume envelope
+typedef struct {
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+	int   lNodeCount;						// number of nodes
+	const struct BASS_BFX_ENV_NODE *pNodes;	// the nodes
+	BOOL  bFollow;							// follow source position
+} BASS_BFX_VOLUME_ENV;
+
+#pragma pack(push,4)
+typedef struct BASS_BFX_ENV_NODE {
+	double pos;								// node position in seconds (1st envelope node must be at position 0)
+	float  val;								// node value
+} BASS_BFX_ENV_NODE;
+#pragma pack(pop)
+
+// BiQuad Filters
+enum {
+	BASS_BFX_BQF_LOWPASS,
+	BASS_BFX_BQF_HIGHPASS,
+	BASS_BFX_BQF_BANDPASS,					// constant 0 dB peak gain
+	BASS_BFX_BQF_BANDPASS_Q,				// constant skirt gain, peak gain = Q
+	BASS_BFX_BQF_NOTCH,
+	BASS_BFX_BQF_ALLPASS,
+	BASS_BFX_BQF_PEAKINGEQ,
+	BASS_BFX_BQF_LOWSHELF,
+	BASS_BFX_BQF_HIGHSHELF
+};
+
+typedef struct {
+	int   lFilter;							// BASS_BFX_BQF_xxx filter types
+	float fCenter;							// [1Hz..<info.freq/2] Cutoff (central) frequency in Hz
+	float fGain;							// [-15dB...0...+15dB] Used only for PEAKINGEQ and Shelving filters in dB (can be above/below these limits)
+	float fBandwidth;						// [0.1...........<10] Bandwidth in octaves (fQ is not in use (fBandwidth has a priority over fQ))
+											// 						(between -3 dB frequencies for BANDPASS and NOTCH or between midpoint
+											// 						(fGgain/2) gain frequencies for PEAKINGEQ)
+	float fQ;								// [0.1.............1] The EE kinda definition (linear) (if fBandwidth is not in use)
+	float fS;								// [0.1.............1] A "shelf slope" parameter (linear) (used only with Shelving filters)
+											// 						when fS = 1, the shelf slope is as steep as you can get it and remain monotonically
+											// 						increasing or decreasing gain with frequency.
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_BQF;
+
+// Echo 4
+typedef struct {
+	float fDryMix;							// dry (unaffected) signal mix				[-2.......2]
+	float fWetMix;							// wet (affected) signal mix				[-2.......2]
+	float fFeedback;						// output signal to feed back into input	[-1.......1]
+	float fDelay;							// delay sec								[0<.......n]
+	BOOL  bStereo;							// echo adjoining channels to each other	[TRUE/FALSE]
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_ECHO4;
+
+// Pitch shift (not available on mobile)
+typedef struct {
+	float fPitchShift;						// A factor value which is between 0.5 (one octave down) and 2 (one octave up) (1 won't change the pitch) [1 default]
+											// (fSemitones is not in use, fPitchShift has a priority over fSemitones)
+	float fSemitones;						// Semitones (0 won't change the pitch) [0 default]
+	long  lFFTsize;							// Defines the FFT frame size used for the processing. Typical values are 1024, 2048 and 4096 [2048 default]
+											// It may be any value <= 8192 but it MUST be a power of 2
+	long  lOsamp;							// Is the STFT oversampling factor which also determines the overlap between adjacent STFT frames [8 default]
+											// It should at least be 4 for moderate scaling ratios. A value of 32 is recommended for best quality (better quality = higher CPU usage)
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_PITCHSHIFT;
+
+// Freeverb
+#define BASS_BFX_FREEVERB_MODE_FREEZE	1
+
+typedef struct {
+	float fDryMix;							// dry (unaffected) signal mix				[0........1], def. 0
+	float fWetMix;							// wet (affected) signal mix				[0........3], def. 1.0f
+	float fRoomSize;						// room size								[0........1], def. 0.5f
+	float fDamp;							// damping									[0........1], def. 0.5f
+	float fWidth;							// stereo width								[0........1], def. 1
+	DWORD lMode;							// 0 or BASS_BFX_FREEVERB_MODE_FREEZE, def. 0 (no freeze)
+	int   lChannel;							// BASS_BFX_CHANxxx flag/s
+} BASS_BFX_FREEVERB;
+
+/*===========================================================================
+	set dsp fx			- BASS_ChannelSetFX
+	remove dsp fx		- BASS_ChannelRemoveFX
+	set parameters		- BASS_FXSetParameters
+	retrieve parameters - BASS_FXGetParameters
+	reset the state		- BASS_FXReset
+===========================================================================*/
+
+/*===========================================================================
+	Tempo, Pitch scaling and Sample rate changers
+===========================================================================*/
+
+// NOTE: Enable Tempo supported flags in BASS_FX_TempoCreate and the others to source handle.
+
+// tempo attributes (BASS_ChannelSet/GetAttribute)
+enum {
+	BASS_ATTRIB_TEMPO = 0x10000,
+	BASS_ATTRIB_TEMPO_PITCH,
+	BASS_ATTRIB_TEMPO_FREQ
+};
+
+// tempo attributes options
+enum {
+	BASS_ATTRIB_TEMPO_OPTION_USE_AA_FILTER = 0x10010,	// TRUE (default) / FALSE (default for multi-channel on mobile devices for lower CPU usage)
+	BASS_ATTRIB_TEMPO_OPTION_AA_FILTER_LENGTH,			// 32 default (8 .. 128 taps)
+	BASS_ATTRIB_TEMPO_OPTION_USE_QUICKALGO,				// TRUE (default on mobile devices for lower CPU usage) / FALSE (default)
+	BASS_ATTRIB_TEMPO_OPTION_SEQUENCE_MS,				// 82 default, 0 = automatic
+	BASS_ATTRIB_TEMPO_OPTION_SEEKWINDOW_MS,				// 28 default, 0 = automatic
+	BASS_ATTRIB_TEMPO_OPTION_OVERLAP_MS,				// 8  default
+	BASS_ATTRIB_TEMPO_OPTION_PREVENT_CLICK				// TRUE / FALSE (default)
+};
+
+// tempo algorithm flags
+#define BASS_FX_TEMPO_ALGO_LINEAR		0x200
+#define BASS_FX_TEMPO_ALGO_CUBIC		0x400			// default
+#define BASS_FX_TEMPO_ALGO_SHANNON		0x800
+
+HSTREAM BASS_FXDEF(BASS_FX_TempoCreate)(DWORD chan, DWORD flags);
+DWORD   BASS_FXDEF(BASS_FX_TempoGetSource)(HSTREAM chan);
+float   BASS_FXDEF(BASS_FX_TempoGetRateRatio)(HSTREAM chan);
+
+/*===========================================================================
+	Reverse playback
+===========================================================================*/
+
+// NOTES: 1. MODs won't load without BASS_MUSIC_PRESCAN flag.
+//		  2. Enable Reverse supported flags in BASS_FX_ReverseCreate and the others to source handle.
+
+// reverse attribute (BASS_ChannelSet/GetAttribute)
+#define BASS_ATTRIB_REVERSE_DIR 0x11000
+
+// playback directions
+#define BASS_FX_RVS_REVERSE -1
+#define BASS_FX_RVS_FORWARD 1
+
+HSTREAM BASS_FXDEF(BASS_FX_ReverseCreate)(DWORD chan, float dec_block, DWORD flags);
+DWORD   BASS_FXDEF(BASS_FX_ReverseGetSource)(HSTREAM chan);
+
+/*===========================================================================
+	BPM (Beats Per Minute)
+===========================================================================*/
+
+// bpm flags
+#define BASS_FX_BPM_BKGRND	1	// if in use, then you can do other processing while detection's in progress. Available only in Windows platforms (BPM/Beat)
+#define BASS_FX_BPM_MULT2	2	// if in use, then will auto multiply bpm by 2 (if BPM < minBPM*2)
+
+// translation options (deprecated)
+enum {
+	BASS_FX_BPM_TRAN_X2,		// multiply the original BPM value by 2 (may be called only once & will change the original BPM as well!)
+	BASS_FX_BPM_TRAN_2FREQ,		// BPM value to Frequency
+	BASS_FX_BPM_TRAN_FREQ2,		// Frequency to BPM value
+	BASS_FX_BPM_TRAN_2PERCENT,	// BPM value to Percents
+	BASS_FX_BPM_TRAN_PERCENT2	// Percents to BPM value
+};
+
+typedef void (CALLBACK BPMPROC)(DWORD chan, float bpm, void *user);
+typedef void (CALLBACK BPMPROGRESSPROC)(DWORD chan, float percent, void *user);
+typedef BPMPROGRESSPROC BPMPROCESSPROC;	// back-compatibility
+
+float BASS_FXDEF(BASS_FX_BPM_DecodeGet)(DWORD chan, double startSec, double endSec, DWORD minMaxBPM, DWORD flags, BPMPROGRESSPROC *proc, void *user);
+BOOL  BASS_FXDEF(BASS_FX_BPM_CallbackSet)(DWORD handle, BPMPROC *proc, double period, DWORD minMaxBPM, DWORD flags, void *user);
+BOOL  BASS_FXDEF(BASS_FX_BPM_CallbackReset)(DWORD handle);
+float BASS_FXDEF(BASS_FX_BPM_Translate)(DWORD handle, float val2tran, DWORD trans);	// deprecated
+BOOL  BASS_FXDEF(BASS_FX_BPM_Free)(DWORD handle);
+
+/*===========================================================================
+	Beat position trigger
+===========================================================================*/
+
+typedef void (CALLBACK BPMBEATPROC)(DWORD chan, double beatpos, void *user);
+
+BOOL BASS_FXDEF(BASS_FX_BPM_BeatCallbackSet)(DWORD handle, BPMBEATPROC *proc, void *user);
+BOOL BASS_FXDEF(BASS_FX_BPM_BeatCallbackReset)(DWORD handle);
+BOOL BASS_FXDEF(BASS_FX_BPM_BeatDecodeGet)(DWORD chan, double startSec, double endSec, DWORD flags, BPMBEATPROC *proc, void *user);
+BOOL BASS_FXDEF(BASS_FX_BPM_BeatSetParameters)(DWORD handle, float bandwidth, float centerfreq, float beat_rtime);
+BOOL BASS_FXDEF(BASS_FX_BPM_BeatGetParameters)(DWORD handle, float *bandwidth, float *centerfreq, float *beat_rtime);
+BOOL BASS_FXDEF(BASS_FX_BPM_BeatFree)(DWORD handle);
+
+/*===========================================================================
+	Macros
+===========================================================================*/
+
+// translate linear level to logarithmic dB
+#define BASS_BFX_Linear2dB(level) (20*log10(level))
+
+// translate logarithmic dB level to linear
+#define BASS_BFX_dB2Linear(dB) pow(10,(dB)/20)
+
+#ifdef __cplusplus
+	}
+#endif
+
+#endif

Libs/bass/bassmix.h

@@ -0,0 +1,114 @@
+/*
+	BASSmix 2.4 C/C++ header file
+	Copyright (c) 2005-2017 Un4seen Developments Ltd.
+
+	See the BASSMIX.CHM file for more detailed documentation
+*/
+
+#ifndef BASSMIX_H
+#define BASSMIX_H
+
+#include "bass.h"
+
+#if BASSVERSION!=0x204
+#error conflicting BASS and BASSmix versions
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef BASSMIXDEF
+#define BASSMIXDEF(f) WINAPI f
+#endif
+
+// additional BASS_SetConfig option
+#define BASS_CONFIG_MIXER_BUFFER	0x10601
+#define BASS_CONFIG_MIXER_POSEX		0x10602
+#define BASS_CONFIG_SPLIT_BUFFER	0x10610
+
+// BASS_Mixer_StreamCreate flags
+#define BASS_MIXER_END			0x10000	// end the stream when there are no sources
+#define BASS_MIXER_NONSTOP		0x20000	// don't stall when there are no sources
+#define BASS_MIXER_RESUME		0x1000	// resume stalled immediately upon new/unpaused source
+#define BASS_MIXER_POSEX		0x2000	// enable BASS_Mixer_ChannelGetPositionEx support
+
+// source flags
+#define BASS_MIXER_BUFFER		0x2000	// buffer data for BASS_Mixer_ChannelGetData/Level
+#define BASS_MIXER_LIMIT		0x4000	// limit mixer processing to the amount available from this source
+#define BASS_MIXER_MATRIX		0x10000	// matrix mixing
+#define BASS_MIXER_PAUSE		0x20000	// don't process the source
+#define BASS_MIXER_DOWNMIX		0x400000 // downmix to stereo/mono
+#define BASS_MIXER_NORAMPIN		0x800000 // don't ramp-in the start
+
+// mixer attributes
+#define BASS_ATTRIB_MIXER_LATENCY	0x15000
+
+// splitter flags
+#define BASS_SPLIT_SLAVE		0x1000	// only read buffered data
+#define BASS_SPLIT_POS			0x2000
+
+// splitter attributes
+#define BASS_ATTRIB_SPLIT_ASYNCBUFFER		0x15010
+#define BASS_ATTRIB_SPLIT_ASYNCPERIOD		0x15011
+
+// envelope node
+typedef struct {
+	QWORD pos;
+	float value;
+} BASS_MIXER_NODE;
+
+// envelope types
+#define BASS_MIXER_ENV_FREQ		1
+#define BASS_MIXER_ENV_VOL		2
+#define BASS_MIXER_ENV_PAN		3
+#define BASS_MIXER_ENV_LOOP		0x10000 // flag: loop
+
+// additional sync type
+#define BASS_SYNC_MIXER_ENVELOPE		0x10200
+#define BASS_SYNC_MIXER_ENVELOPE_NODE	0x10201
+
+// additional BASS_Mixer_ChannelSetPosition flag
+#define BASS_POS_MIXER_RESET	0x10000 // flag: clear mixer's playback buffer
+
+// BASS_CHANNELINFO type
+#define BASS_CTYPE_STREAM_MIXER	0x10800
+#define BASS_CTYPE_STREAM_SPLIT	0x10801
+
+DWORD BASSMIXDEF(BASS_Mixer_GetVersion)();
+
+HSTREAM BASSMIXDEF(BASS_Mixer_StreamCreate)(DWORD freq, DWORD chans, DWORD flags);
+BOOL BASSMIXDEF(BASS_Mixer_StreamAddChannel)(HSTREAM handle, DWORD channel, DWORD flags);
+BOOL BASSMIXDEF(BASS_Mixer_StreamAddChannelEx)(HSTREAM handle, DWORD channel, DWORD flags, QWORD start, QWORD length);
+DWORD BASSMIXDEF(BASS_Mixer_StreamGetChannels)(HSTREAM handle, DWORD *channels, DWORD count);
+
+HSTREAM BASSMIXDEF(BASS_Mixer_ChannelGetMixer)(DWORD handle);
+DWORD BASSMIXDEF(BASS_Mixer_ChannelFlags)(DWORD handle, DWORD flags, DWORD mask);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelRemove)(DWORD handle);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelSetPosition)(DWORD handle, QWORD pos, DWORD mode);
+QWORD BASSMIXDEF(BASS_Mixer_ChannelGetPosition)(DWORD handle, DWORD mode);
+QWORD BASSMIXDEF(BASS_Mixer_ChannelGetPositionEx)(DWORD channel, DWORD mode, DWORD delay);
+DWORD BASSMIXDEF(BASS_Mixer_ChannelGetLevel)(DWORD handle);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelGetLevelEx)(DWORD handle, float *levels, float length, DWORD flags);
+DWORD BASSMIXDEF(BASS_Mixer_ChannelGetData)(DWORD handle, void *buffer, DWORD length);
+HSYNC BASSMIXDEF(BASS_Mixer_ChannelSetSync)(DWORD handle, DWORD type, QWORD param, SYNCPROC *proc, void *user);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelRemoveSync)(DWORD channel, HSYNC sync);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelSetMatrix)(DWORD handle, const void *matrix);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelSetMatrixEx)(DWORD handle, const void *matrix, float time);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelGetMatrix)(DWORD handle, void *matrix);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelSetEnvelope)(DWORD handle, DWORD type, const BASS_MIXER_NODE *nodes, DWORD count);
+BOOL BASSMIXDEF(BASS_Mixer_ChannelSetEnvelopePos)(DWORD handle, DWORD type, QWORD pos);
+QWORD BASSMIXDEF(BASS_Mixer_ChannelGetEnvelopePos)(DWORD handle, DWORD type, float *value);
+
+HSTREAM BASSMIXDEF(BASS_Split_StreamCreate)(DWORD channel, DWORD flags, const int *chanmap);
+DWORD BASSMIXDEF(BASS_Split_StreamGetSource)(HSTREAM handle);
+DWORD BASSMIXDEF(BASS_Split_StreamGetSplits)(DWORD handle, HSTREAM *splits, DWORD count);
+BOOL BASSMIXDEF(BASS_Split_StreamReset)(DWORD handle);
+BOOL BASSMIXDEF(BASS_Split_StreamResetEx)(DWORD handle, DWORD offset);
+DWORD BASSMIXDEF(BASS_Split_StreamGetAvailable)(DWORD handle);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

Libs/fixedpoint/fixed_point.h

@@ -0,0 +1,574 @@
+// From: https://github.com/eteran/cpp-utilities/blob/master/fixed/include/eteran/cpp-utilities/Fixed.h
+// See also: http://stackoverflow.com/questions/79677/whats-the-best-way-to-do-fixed-point-math
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Evan Teran
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef FIXED_H_
+#define FIXED_H_
+
+#if __cplusplus >= 201402L
+#define CONSTEXPR14 constexpr
+#else
+#define CONSTEXPR14
+#endif
+
+
+#include <ostream>
+#include <exception>
+#include <cstddef> // for size_t
+#include <cstdint>
+#include <type_traits>
+
+namespace numeric {
+
+	template <size_t I, size_t F>
+	class Fixed;
+
+	namespace detail {
+
+		// helper templates to make magic with types :)
+		// these allow us to determine resonable types from
+		// a desired size, they also let us infer the next largest type
+		// from a type which is nice for the division op
+		template <size_t T>
+		struct type_from_size {
+			static constexpr bool is_specialized = false;
+		};
+
+#if defined(__GNUC__) && defined(__x86_64__) && !defined(__STRICT_ANSI__)
+		template <>
+		struct type_from_size<128> {
+			static constexpr bool   is_specialized = true;
+			static constexpr size_t size = 128;
+
+			using value_type    = __int128;
+			using unsigned_type = unsigned __int128;
+			using signed_type   = __int128;
+			using next_size     = type_from_size<256>;
+		};
+#endif
+
+		template <>
+		struct type_from_size<64> {
+			static constexpr bool   is_specialized = true;
+			static constexpr size_t size = 64;
+
+			using value_type    = int64_t;
+			using unsigned_type = std::make_unsigned<value_type>::type;
+			using signed_type   = std::make_signed<value_type>::type;
+			using next_size     = type_from_size<128>;
+		};
+
+		template <>
+		struct type_from_size<32> {
+			static constexpr bool   is_specialized = true;
+			static constexpr size_t size = 32;
+
+			using value_type    = int32_t;
+			using unsigned_type = std::make_unsigned<value_type>::type;
+			using signed_type   = std::make_signed<value_type>::type;
+			using next_size     = type_from_size<64>;
+		};
+
+		template <>
+		struct type_from_size<16> {
+			static constexpr bool   is_specialized = true;
+			static constexpr size_t size = 16;
+
+			using value_type    = int16_t;
+			using unsigned_type = std::make_unsigned<value_type>::type;
+			using signed_type   = std::make_signed<value_type>::type;
+			using next_size     = type_from_size<32>;
+		};
+
+		template <>
+		struct type_from_size<8> {
+			static constexpr bool   is_specialized = true;
+			static constexpr size_t size = 8;
+
+			using value_type    = int8_t;
+			using unsigned_type = std::make_unsigned<value_type>::type;
+			using signed_type   = std::make_signed<value_type>::type;
+			using next_size     = type_from_size<16>;
+		};
+
+		// this is to assist in adding support for non-native base
+		// types (for adding big-int support), this should be fine
+		// unless your bit-int class doesn't nicely support casting
+		template <class B, class N>
+		constexpr B next_to_base(N rhs) {
+			return static_cast<B>(rhs);
+		}
+
+		struct divide_by_zero : std::exception {
+		};
+
+		template <size_t I, size_t F>
+		CONSTEXPR14 Fixed<I, F> divide(Fixed<I, F> numerator, Fixed<I, F> denominator, Fixed<I, F>& remainder, typename std::enable_if<type_from_size<I + F>::next_size::is_specialized>::type * = nullptr) {
+
+			using next_type = typename Fixed<I, F>::next_type;
+			using base_type = typename Fixed<I, F>::base_type;
+			constexpr size_t fractional_bits = Fixed<I, F>::fractional_bits;
+
+			next_type t(numerator.to_raw());
+			t <<= fractional_bits;
+
+			Fixed<I, F> quotient;
+
+			quotient = Fixed<I, F>::from_base(next_to_base<base_type>(t / denominator.to_raw()));
+			remainder = Fixed<I, F>::from_base(next_to_base<base_type>(t % denominator.to_raw()));
+
+			return quotient;
+		}
+
+		template <size_t I, size_t F>
+		CONSTEXPR14 Fixed<I, F> divide(Fixed<I, F> numerator, Fixed<I, F> denominator, Fixed<I, F> & remainder, typename std::enable_if<!type_from_size<I + F>::next_size::is_specialized>::type * = nullptr) {
+
+			// NOTE(eteran): division is broken for large types :-(
+			// especially when dealing with negative quantities
+
+			using base_type     = typename Fixed<I, F>::base_type;
+			using unsigned_type = typename Fixed<I, F>::unsigned_type;
+
+			constexpr int bits = Fixed<I, F>::total_bits;
+
+			if (denominator == 0) {
+				throw divide_by_zero();
+			}
+			else {
+
+				int sign = 0;
+
+				Fixed<I, F> quotient;
+
+				if (numerator < 0) {
+					sign ^= 1;
+					numerator = -numerator;
+				}
+
+				if (denominator < 0) {
+					sign ^= 1;
+					denominator = -denominator;
+				}
+
+				base_type n = numerator.to_raw();
+				base_type d = denominator.to_raw();
+				base_type x = 1;
+				base_type answer = 0;
+
+				// egyptian division algorithm
+				while ((n >= d) && (((d >> (bits - 1)) & 1) == 0)) {
+					x <<= 1;
+					d <<= 1;
+				}
+
+				while (x != 0) {
+					if (n >= d) {
+						n -= d;
+						answer += x;
+					}
+
+					x >>= 1;
+					d >>= 1;
+				}
+
+				unsigned_type l1 = n;
+				unsigned_type l2 = denominator.to_raw();
+
+				// calculate the lower bits (needs to be unsigned)
+				// unfortunately for many fractions this overflows the type still :-/
+				const unsigned_type lo = (static_cast<unsigned_type>(n) << F) / denominator.to_raw();
+
+				quotient = Fixed<I, F>::from_base((answer << F) | lo);
+				remainder = n;
+
+				if (sign) {
+					quotient = -quotient;
+				}
+
+				return quotient;
+			}
+		}
+
+		// this is the usual implementation of multiplication
+		template <size_t I, size_t F>
+		CONSTEXPR14 Fixed<I, F> multiply(Fixed<I, F> lhs, Fixed<I, F> rhs, typename std::enable_if<type_from_size<I + F>::next_size::is_specialized>::type * = nullptr) {
+
+			using next_type = typename Fixed<I, F>::next_type;
+			using base_type = typename Fixed<I, F>::base_type;
+
+			constexpr size_t fractional_bits = Fixed<I, F>::fractional_bits;
+
+			next_type t(static_cast<next_type>(lhs.to_raw()) * static_cast<next_type>(rhs.to_raw()));
+			t >>= fractional_bits;
+
+			return Fixed<I, F>::from_base(next_to_base<base_type>(t));
+		}
+
+		// this is the fall back version we use when we don't have a next size
+		// it is slightly slower, but is more robust since it doesn't
+		// require and upgraded type
+		template <size_t I, size_t F>
+		CONSTEXPR14 Fixed<I, F> multiply(Fixed<I, F> lhs, Fixed<I, F> rhs, typename std::enable_if<!type_from_size<I + F>::next_size::is_specialized>::type * = nullptr) {
+
+			using base_type = typename Fixed<I, F>::base_type;
+
+			constexpr size_t fractional_bits = Fixed<I, F>::fractional_bits;
+			constexpr base_type integer_mask = Fixed<I, F>::integer_mask;
+			constexpr base_type fractional_mask = Fixed<I, F>::fractional_mask;
+
+			// more costly but doesn't need a larger type
+			constexpr base_type a_hi = (lhs.to_raw() & integer_mask) >> fractional_bits;
+			constexpr base_type b_hi = (rhs.to_raw() & integer_mask) >> fractional_bits;
+			constexpr base_type a_lo = (lhs.to_raw() & fractional_mask);
+			constexpr base_type b_lo = (rhs.to_raw() & fractional_mask);
+
+			constexpr base_type x1 = a_hi * b_hi;
+			constexpr base_type x2 = a_hi * b_lo;
+			constexpr base_type x3 = a_lo * b_hi;
+			constexpr base_type x4 = a_lo * b_lo;
+
+			return Fixed<I, F>::from_base((x1 << fractional_bits) + (x3 + x2) + (x4 >> fractional_bits));
+		}
+	}
+
+	template <size_t I, size_t F>
+	class Fixed {
+		static_assert(detail::type_from_size<I + F>::is_specialized, "invalid combination of sizes");
+
+	public:
+		static constexpr size_t fractional_bits = F;
+		static constexpr size_t integer_bits = I;
+		static constexpr size_t total_bits = I + F;
+
+		using base_type_info = detail::type_from_size<total_bits>;
+
+		using base_type     = typename base_type_info::value_type;
+		using next_type     = typename base_type_info::next_size::value_type;
+		using unsigned_type = typename base_type_info::unsigned_type;
+
+	public:
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Woverflow"
+#endif
+		static constexpr base_type fractional_mask = ~(static_cast<unsigned_type>(~base_type(0)) << fractional_bits);
+		static constexpr base_type integer_mask = ~fractional_mask;
+#ifdef __GNUC__
+#pragma GCC diagnostic push
+#endif
+
+	public:
+		static constexpr base_type one = base_type(1) << fractional_bits;
+
+	public: // constructors
+		Fixed() = default;
+		Fixed(const Fixed&) = default;
+		Fixed & operator=(const Fixed&) = default;
+
+		template <class Number>
+		constexpr Fixed(Number n, typename std::enable_if<std::is_arithmetic<Number>::value>::type * = nullptr) : data_(static_cast<base_type>(n * one)) {
+		}
+
+	public: // conversion
+		template <size_t I2, size_t F2>
+		CONSTEXPR14 explicit Fixed(Fixed<I2, F2> other) {
+			static_assert(I2 <= I && F2 <= F, "Scaling conversion can only upgrade types");
+			using T = Fixed<I2, F2>;
+
+			const base_type fractional = (other.data_ & T::fractional_mask);
+			const base_type integer = (other.data_ & T::integer_mask) >> T::fractional_bits;
+			data_ = (integer << fractional_bits) | (fractional << (fractional_bits - T::fractional_bits));
+		}
+
+	private:
+		// this makes it simpler to create a fixed point object from
+		// a native type without scaling
+		// use "Fixed::from_base" in order to perform this.
+		struct NoScale {};
+
+		constexpr Fixed(base_type n, const NoScale&) : data_(n) {
+		}
+
+	public:
+		constexpr static Fixed from_base(base_type n) {
+			return Fixed(n, NoScale());
+		}
+
+	public:	// comparison operators
+		constexpr bool operator==(Fixed rhs) const {
+			return data_ == rhs.data_;
+		}
+
+		constexpr bool operator!=(Fixed rhs) const {
+			return data_ != rhs.data_;
+		}
+
+		constexpr bool operator<(Fixed rhs) const {
+			return data_ < rhs.data_;
+		}
+
+		constexpr bool operator>(Fixed rhs) const {
+			return data_ > rhs.data_;
+		}
+
+		constexpr bool operator<=(Fixed rhs) const {
+			return data_ <= rhs.data_;
+		}
+
+		constexpr bool operator>=(Fixed rhs) const {
+			return data_ >= rhs.data_;
+		}
+
+	public:	// unary operators
+		constexpr bool operator!() const {
+			return !data_;
+		}
+
+		constexpr Fixed operator~() const {
+			// NOTE(eteran): this will often appear to "just negate" the value
+			// that is not an error, it is because -x == (~x+1)
+			// and that "+1" is adding an infinitesimally small fraction to the
+			// complimented value
+			return Fixed::from_base(~data_);
+		}
+
+		constexpr Fixed operator-() const {
+			return Fixed::from_base(-data_);
+		}
+
+		constexpr Fixed operator+() const {
+			return Fixed::from_base(+data_);
+		}
+
+		CONSTEXPR14 Fixed& operator++() {
+			data_ += one;
+			return *this;
+		}
+
+		CONSTEXPR14 Fixed& operator--() {
+			data_ -= one;
+			return *this;
+		}
+
+		CONSTEXPR14 Fixed operator++(int) {
+			Fixed tmp(*this);
+			data_ += one;
+			return tmp;
+		}
+
+		CONSTEXPR14 Fixed operator--(int) {
+			Fixed tmp(*this);
+			data_ -= one;
+			return tmp;
+		}
+
+	public:	// basic math operators
+		CONSTEXPR14 Fixed& operator+=(Fixed n) {
+			data_ += n.data_;
+			return *this;
+		}
+
+		CONSTEXPR14 Fixed& operator-=(Fixed n) {
+			data_ -= n.data_;
+			return *this;
+		}
+
+		CONSTEXPR14 Fixed& operator*=(Fixed n) {
+			return assign(detail::multiply(*this, n));
+		}
+
+		CONSTEXPR14 Fixed& operator/=(Fixed n) {
+			Fixed temp;
+			return assign(detail::divide(*this, n, temp));
+		}
+
+	private:
+		CONSTEXPR14 Fixed& assign(Fixed rhs) {
+			data_ = rhs.data_;
+			return *this;
+		}
+
+	public: // binary math operators, effects underlying bit pattern since these 
+			// don't really typically make sense for non-integer values
+		CONSTEXPR14 Fixed& operator&=(Fixed n) {
+			data_ &= n.data_;
+			return *this;
+		}
+
+		CONSTEXPR14 Fixed& operator|=(Fixed n) {
+			data_ |= n.data_;
+			return *this;
+		}
+
+		CONSTEXPR14 Fixed& operator^=(Fixed n) {
+			data_ ^= n.data_;
+			return *this;
+		}
+
+		template <class Integer, class = typename std::enable_if<std::is_integral<Integer>::value>::type>
+		CONSTEXPR14 Fixed & operator>>=(Integer n) {
+			data_ >>= n;
+			return *this;
+		}
+
+		template <class Integer, class = typename std::enable_if<std::is_integral<Integer>::value>::type>
+		CONSTEXPR14 Fixed & operator<<=(Integer n) {
+			data_ <<= n;
+			return *this;
+		}
+
+	public: // conversion to basic types
+		constexpr int to_int() const {
+			return (data_ & integer_mask) >> fractional_bits;
+		}
+
+		constexpr unsigned int to_uint() const {
+			return (data_ & integer_mask) >> fractional_bits;
+		}
+
+		constexpr float to_float() const {
+			return static_cast<float>(data_) / Fixed::one;
+		}
+
+		constexpr double to_double() const {
+			return static_cast<double>(data_) / Fixed::one;
+		}
+
+		constexpr base_type to_raw() const {
+			return data_;
+		}
+
+	public:
+		CONSTEXPR14 void swap(Fixed & rhs) {
+			using std::swap;
+			swap(data_, rhs.data_);
+		}
+
+	public:
+		base_type data_ = 0;
+	};
+
+	// if we have the same fractional portion, but differing integer portions, we trivially upgrade the smaller type
+	template <size_t I1, size_t I2, size_t F>
+	CONSTEXPR14 typename std::conditional<I1 >= I2, Fixed<I1, F>, Fixed<I2, F>>::type operator+(Fixed<I1, F> lhs, Fixed<I2, F> rhs) {
+
+		using T = typename std::conditional<
+			I1 >= I2,
+			Fixed<I1, F>,
+			Fixed<I2, F>
+		>::type;
+
+		const T l = T::from_base(lhs.to_raw());
+		const T r = T::from_base(rhs.to_raw());
+		return l + r;
+	}
+
+	template <size_t I1, size_t I2, size_t F>
+	CONSTEXPR14 typename std::conditional<I1 >= I2, Fixed<I1, F>, Fixed<I2, F>>::type operator-(Fixed<I1, F> lhs, Fixed<I2, F> rhs) {
+
+		using T = typename std::conditional<
+			I1 >= I2,
+			Fixed<I1, F>,
+			Fixed<I2, F>
+		>::type;
+
+		const T l = T::from_base(lhs.to_raw());
+		const T r = T::from_base(rhs.to_raw());
+		return l - r;
+	}
+
+	template <size_t I1, size_t I2, size_t F>
+	CONSTEXPR14 typename std::conditional<I1 >= I2, Fixed<I1, F>, Fixed<I2, F>>::type operator*(Fixed<I1, F> lhs, Fixed<I2, F> rhs) {
+
+		using T = typename std::conditional<
+			I1 >= I2,
+			Fixed<I1, F>,
+			Fixed<I2, F>
+		>::type;
+
+		const T l = T::from_base(lhs.to_raw());
+		const T r = T::from_base(rhs.to_raw());
+		return l * r;
+	}
+
+	template <size_t I1, size_t I2, size_t F>
+	CONSTEXPR14 typename std::conditional<I1 >= I2, Fixed<I1, F>, Fixed<I2, F>>::type operator/(Fixed<I1, F> lhs, Fixed<I2, F> rhs) {
+
+		using T = typename std::conditional<
+			I1 >= I2,
+			Fixed<I1, F>,
+			Fixed<I2, F>
+		>::type;
+
+		const T l = T::from_base(lhs.to_raw());
+		const T r = T::from_base(rhs.to_raw());
+		return l / r;
+	}
+
+	template <size_t I, size_t F>
+	std::ostream& operator<<(std::ostream & os, Fixed<I, F> f) {
+		os << f.to_double();
+		return os;
+	}
+
+	// basic math operators
+	template <size_t I, size_t F> CONSTEXPR14 Fixed<I, F> operator+(Fixed<I, F> lhs, Fixed<I, F> rhs) { lhs += rhs; return lhs; }
+	template <size_t I, size_t F> CONSTEXPR14 Fixed<I, F> operator-(Fixed<I, F> lhs, Fixed<I, F> rhs) { lhs -= rhs; return lhs; }
+	template <size_t I, size_t F> CONSTEXPR14 Fixed<I, F> operator*(Fixed<I, F> lhs, Fixed<I, F> rhs) { lhs *= rhs; return lhs; }
+	template <size_t I, size_t F> CONSTEXPR14 Fixed<I, F> operator/(Fixed<I, F> lhs, Fixed<I, F> rhs) { lhs /= rhs; return lhs; }
+
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator+(Fixed<I, F> lhs, Number rhs) { lhs += Fixed<I, F>(rhs); return lhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator-(Fixed<I, F> lhs, Number rhs) { lhs -= Fixed<I, F>(rhs); return lhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator*(Fixed<I, F> lhs, Number rhs) { lhs *= Fixed<I, F>(rhs); return lhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator/(Fixed<I, F> lhs, Number rhs) { lhs /= Fixed<I, F>(rhs); return lhs; }
+
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator+(Number lhs, Fixed<I, F> rhs) { Fixed<I, F> tmp(lhs); tmp += rhs; return tmp; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator-(Number lhs, Fixed<I, F> rhs) { Fixed<I, F> tmp(lhs); tmp -= rhs; return tmp; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator*(Number lhs, Fixed<I, F> rhs) { Fixed<I, F> tmp(lhs); tmp *= rhs; return tmp; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> CONSTEXPR14 Fixed<I, F> operator/(Number lhs, Fixed<I, F> rhs) { Fixed<I, F> tmp(lhs); tmp /= rhs; return tmp; }
+
+	// shift operators
+	template <size_t I, size_t F, class Integer, class = typename std::enable_if<std::is_integral<Integer>::value>::type> CONSTEXPR14 Fixed<I, F> operator<<(Fixed<I, F> lhs, Integer rhs) { lhs <<= rhs; return lhs; }
+	template <size_t I, size_t F, class Integer, class = typename std::enable_if<std::is_integral<Integer>::value>::type> CONSTEXPR14 Fixed<I, F> operator>>(Fixed<I, F> lhs, Integer rhs) { lhs >>= rhs; return lhs; }
+
+	// comparison operators
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator>(Fixed<I, F> lhs, Number rhs) { return lhs > Fixed<I, F>(rhs); }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator<(Fixed<I, F> lhs, Number rhs) { return lhs < Fixed<I, F>(rhs); }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator>=(Fixed<I, F> lhs, Number rhs) { return lhs >= Fixed<I, F>(rhs); }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator<=(Fixed<I, F> lhs, Number rhs) { return lhs <= Fixed<I, F>(rhs); }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator==(Fixed<I, F> lhs, Number rhs) { return lhs == Fixed<I, F>(rhs); }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator!=(Fixed<I, F> lhs, Number rhs) { return lhs != Fixed<I, F>(rhs); }
+
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator>(Number lhs, Fixed<I, F> rhs) { return Fixed<I, F>(lhs) > rhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator<(Number lhs, Fixed<I, F> rhs) { return Fixed<I, F>(lhs) < rhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator>=(Number lhs, Fixed<I, F> rhs) { return Fixed<I, F>(lhs) >= rhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator<=(Number lhs, Fixed<I, F> rhs) { return Fixed<I, F>(lhs) <= rhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator==(Number lhs, Fixed<I, F> rhs) { return Fixed<I, F>(lhs) == rhs; }
+	template <size_t I, size_t F, class Number, class = typename std::enable_if<std::is_arithmetic<Number>::value>::type> constexpr bool operator!=(Number lhs, Fixed<I, F> rhs) { return Fixed<I, F>(lhs) != rhs; }
+}
+
+#undef CONSTEXPR14
+
+#endif

Libs/flatbuffers/base.h

@@ -0,0 +1,442 @@
+#ifndef FLATBUFFERS_BASE_H_
+#  define FLATBUFFERS_BASE_H_
+
+// clang-format off
+
+// If activate should be declared and included first.
+#if defined(FLATBUFFERS_MEMORY_LEAK_TRACKING) && \
+    defined(_MSC_VER) && defined(_DEBUG)
+  // The _CRTDBG_MAP_ALLOC inside <crtdbg.h> will replace
+  // calloc/free (etc) to its debug version using #define directives.
+  #define _CRTDBG_MAP_ALLOC
+  #include <stdlib.h>
+  #include <crtdbg.h>
+  // Replace operator new by trace-enabled version.
+  #define DEBUG_NEW new(_NORMAL_BLOCK, __FILE__, __LINE__)
+  #define new DEBUG_NEW
+#endif
+
+#if !defined(FLATBUFFERS_ASSERT)
+#include <assert.h>
+#define FLATBUFFERS_ASSERT assert
+#elif defined(FLATBUFFERS_ASSERT_INCLUDE)
+// Include file with forward declaration
+#include FLATBUFFERS_ASSERT_INCLUDE
+#endif
+
+#ifndef ARDUINO
+#include <cstdint>
+#endif
+
+#include <cstddef>
+#include <cstdlib>
+#include <cstring>
+
+#if defined(ARDUINO) && !defined(ARDUINOSTL_M_H)
+  #include <utility.h>
+#else
+  #include <utility>
+#endif
+
+#include <string>
+#include <type_traits>
+#include <vector>
+#include <set>
+#include <algorithm>
+#include <iterator>
+#include <memory>
+
+#if defined(__unix__) && !defined(FLATBUFFERS_LOCALE_INDEPENDENT)
+  #include <unistd.h>
+#endif
+
+#ifdef _STLPORT_VERSION
+  #define FLATBUFFERS_CPP98_STL
+#endif
+
+#ifdef __ANDROID__
+  #include <android/api-level.h>
+#endif
+
+#if defined(__ICCARM__)
+#include <intrinsics.h>
+#endif
+
+// Note the __clang__ check is needed, because clang presents itself
+// as an older GNUC compiler (4.2).
+// Clang 3.3 and later implement all of the ISO C++ 2011 standard.
+// Clang 3.4 and later implement all of the ISO C++ 2014 standard.
+// http://clang.llvm.org/cxx_status.html
+
+// Note the MSVC value '__cplusplus' may be incorrect:
+// The '__cplusplus' predefined macro in the MSVC stuck at the value 199711L,
+// indicating (erroneously!) that the compiler conformed to the C++98 Standard.
+// This value should be correct starting from MSVC2017-15.7-Preview-3.
+// The '__cplusplus' will be valid only if MSVC2017-15.7-P3 and the `/Zc:__cplusplus` switch is set.
+// Workaround (for details see MSDN):
+// Use the _MSC_VER and _MSVC_LANG definition instead of the __cplusplus  for compatibility.
+// The _MSVC_LANG macro reports the Standard version regardless of the '/Zc:__cplusplus' switch.
+
+#if defined(__GNUC__) && !defined(__clang__)
+  #define FLATBUFFERS_GCC (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
+#else
+  #define FLATBUFFERS_GCC 0
+#endif
+
+#if defined(__clang__)
+  #define FLATBUFFERS_CLANG (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__)
+#else
+  #define FLATBUFFERS_CLANG 0
+#endif
+
+/// @cond FLATBUFFERS_INTERNAL
+#if __cplusplus <= 199711L && \
+    (!defined(_MSC_VER) || _MSC_VER < 1600) && \
+    (!defined(__GNUC__) || \
+      (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__ < 40400))
+  #error A C++11 compatible compiler with support for the auto typing is \
+         required for FlatBuffers.
+  #error __cplusplus _MSC_VER __GNUC__  __GNUC_MINOR__  __GNUC_PATCHLEVEL__
+#endif
+
+#if !defined(__clang__) && \
+    defined(__GNUC__) && \
+    (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__ < 40600)
+  // Backwards compatibility for g++ 4.4, and 4.5 which don't have the nullptr
+  // and constexpr keywords. Note the __clang__ check is needed, because clang
+  // presents itself as an older GNUC compiler.
+  #ifndef nullptr_t
+    const class nullptr_t {
+    public:
+      template<class T> inline operator T*() const { return 0; }
+    private:
+      void operator&() const;
+    } nullptr = {};
+  #endif
+  #ifndef constexpr
+    #define constexpr const
+  #endif
+#endif
+
+// The wire format uses a little endian encoding (since that's efficient for
+// the common platforms).
+#if defined(__s390x__)
+  #define FLATBUFFERS_LITTLEENDIAN 0
+#endif // __s390x__
+#if !defined(FLATBUFFERS_LITTLEENDIAN)
+  #if defined(__GNUC__) || defined(__clang__) || defined(__ICCARM__)
+    #if (defined(__BIG_ENDIAN__) || \
+         (defined(__BYTE_ORDER__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__))
+      #define FLATBUFFERS_LITTLEENDIAN 0
+    #else
+      #define FLATBUFFERS_LITTLEENDIAN 1
+    #endif // __BIG_ENDIAN__
+  #elif defined(_MSC_VER)
+    #if defined(_M_PPC)
+      #define FLATBUFFERS_LITTLEENDIAN 0
+    #else
+      #define FLATBUFFERS_LITTLEENDIAN 1
+    #endif
+  #else
+    #error Unable to determine endianness, define FLATBUFFERS_LITTLEENDIAN.
+  #endif
+#endif // !defined(FLATBUFFERS_LITTLEENDIAN)
+
+#define FLATBUFFERS_VERSION_MAJOR 2
+#define FLATBUFFERS_VERSION_MINOR 0
+#define FLATBUFFERS_VERSION_REVISION 0
+#define FLATBUFFERS_STRING_EXPAND(X) #X
+#define FLATBUFFERS_STRING(X) FLATBUFFERS_STRING_EXPAND(X)
+namespace flatbuffers {
+  // Returns version as string  "MAJOR.MINOR.REVISION".
+  const char* FLATBUFFERS_VERSION();
+}
+
+#if (!defined(_MSC_VER) || _MSC_VER > 1600) && \
+    (!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 407)) || \
+    defined(__clang__)
+  #define FLATBUFFERS_FINAL_CLASS final
+  #define FLATBUFFERS_OVERRIDE override
+  #define FLATBUFFERS_EXPLICIT_CPP11 explicit
+  #define FLATBUFFERS_VTABLE_UNDERLYING_TYPE : flatbuffers::voffset_t
+#else
+  #define FLATBUFFERS_FINAL_CLASS
+  #define FLATBUFFERS_OVERRIDE
+  #define FLATBUFFERS_EXPLICIT_CPP11
+  #define FLATBUFFERS_VTABLE_UNDERLYING_TYPE
+#endif
+
+#if (!defined(_MSC_VER) || _MSC_VER >= 1900) && \
+    (!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 406)) || \
+    (defined(__cpp_constexpr) && __cpp_constexpr >= 200704)
+  #define FLATBUFFERS_CONSTEXPR constexpr
+  #define FLATBUFFERS_CONSTEXPR_CPP11 constexpr
+  #define FLATBUFFERS_CONSTEXPR_DEFINED
+#else
+  #define FLATBUFFERS_CONSTEXPR const
+  #define FLATBUFFERS_CONSTEXPR_CPP11
+#endif
+
+#if (defined(__cplusplus) && __cplusplus >= 201402L) || \
+    (defined(__cpp_constexpr) && __cpp_constexpr >= 201304)
+  #define FLATBUFFERS_CONSTEXPR_CPP14 FLATBUFFERS_CONSTEXPR_CPP11
+#else
+  #define FLATBUFFERS_CONSTEXPR_CPP14
+#endif
+
+#if (defined(__GXX_EXPERIMENTAL_CXX0X__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 406)) || \
+    (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 190023026)) || \
+    defined(__clang__)
+  #define FLATBUFFERS_NOEXCEPT noexcept
+#else
+  #define FLATBUFFERS_NOEXCEPT
+#endif
+
+// NOTE: the FLATBUFFERS_DELETE_FUNC macro may change the access mode to
+// private, so be sure to put it at the end or reset access mode explicitly.
+#if (!defined(_MSC_VER) || _MSC_FULL_VER >= 180020827) && \
+    (!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 404)) || \
+    defined(__clang__)
+  #define FLATBUFFERS_DELETE_FUNC(func) func = delete
+#else
+  #define FLATBUFFERS_DELETE_FUNC(func) private: func
+#endif
+
+#if (!defined(_MSC_VER) || _MSC_VER >= 1900) && \
+    (!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 409)) || \
+    defined(__clang__)
+  #define FLATBUFFERS_DEFAULT_DECLARATION
+#endif
+
+// Check if we can use template aliases
+// Not possible if Microsoft Compiler before 2012
+// Possible is the language feature __cpp_alias_templates is defined well
+// Or possible if the C++ std is C+11 or newer
+#if (defined(_MSC_VER) && _MSC_VER > 1700 /* MSVC2012 */) \
+    || (defined(__cpp_alias_templates) && __cpp_alias_templates >= 200704) \
+    || (defined(__cplusplus) && __cplusplus >= 201103L)
+  #define FLATBUFFERS_TEMPLATES_ALIASES
+#endif
+
+#ifndef FLATBUFFERS_HAS_STRING_VIEW
+  // Only provide flatbuffers::string_view if __has_include can be used
+  // to detect a header that provides an implementation
+  #if defined(__has_include)
+    // Check for std::string_view (in c++17)
+    #if __has_include(<string_view>) && (__cplusplus >= 201606 || (defined(_HAS_CXX17) && _HAS_CXX17))
+      #include <string_view>
+      namespace flatbuffers {
+        typedef std::string_view string_view;
+      }
+      #define FLATBUFFERS_HAS_STRING_VIEW 1
+    // Check for std::experimental::string_view (in c++14, compiler-dependent)
+    #elif __has_include(<experimental/string_view>) && (__cplusplus >= 201411)
+      #include <experimental/string_view>
+      namespace flatbuffers {
+        typedef std::experimental::string_view string_view;
+      }
+      #define FLATBUFFERS_HAS_STRING_VIEW 1
+    // Check for absl::string_view
+    #elif __has_include("absl/strings/string_view.h")
+      #include "absl/strings/string_view.h"
+      namespace flatbuffers {
+        typedef absl::string_view string_view;
+      }
+      #define FLATBUFFERS_HAS_STRING_VIEW 1
+    #endif
+  #endif // __has_include
+#endif // !FLATBUFFERS_HAS_STRING_VIEW
+
+#ifndef FLATBUFFERS_GENERAL_HEAP_ALLOC_OK
+  // Allow heap allocations to be used
+  #define FLATBUFFERS_GENERAL_HEAP_ALLOC_OK 1
+#endif // !FLATBUFFERS_GENERAL_HEAP_ALLOC_OK
+
+#ifndef FLATBUFFERS_HAS_NEW_STRTOD
+  // Modern (C++11) strtod and strtof functions are available for use.
+  // 1) nan/inf strings as argument of strtod;
+  // 2) hex-float  as argument of  strtod/strtof.
+  #if (defined(_MSC_VER) && _MSC_VER >= 1900) || \
+      (defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 409)) || \
+      (defined(__clang__))
+    #define FLATBUFFERS_HAS_NEW_STRTOD 1
+  #endif
+#endif // !FLATBUFFERS_HAS_NEW_STRTOD
+
+#ifndef FLATBUFFERS_LOCALE_INDEPENDENT
+  // Enable locale independent functions {strtof_l, strtod_l,strtoll_l, strtoull_l}.
+  #if ((defined(_MSC_VER) && _MSC_VER >= 1800)            || \
+       (defined(_XOPEN_VERSION) && (_XOPEN_VERSION>=700)) && (!defined(__ANDROID_API__) || (defined(__ANDROID_API__) && (__ANDROID_API__>=21))))
+    #define FLATBUFFERS_LOCALE_INDEPENDENT 1
+  #else
+    #define FLATBUFFERS_LOCALE_INDEPENDENT 0
+  #endif
+#endif  // !FLATBUFFERS_LOCALE_INDEPENDENT
+
+// Suppress Undefined Behavior Sanitizer (recoverable only). Usage:
+// - __supress_ubsan__("undefined")
+// - __supress_ubsan__("signed-integer-overflow")
+#if defined(__clang__) && (__clang_major__ > 3 || (__clang_major__ == 3 && __clang_minor__ >=7))
+  #define __supress_ubsan__(type) __attribute__((no_sanitize(type)))
+#elif defined(__GNUC__) && (__GNUC__ * 100 + __GNUC_MINOR__ >= 409)
+  #define __supress_ubsan__(type) __attribute__((no_sanitize_undefined))
+#else
+  #define __supress_ubsan__(type)
+#endif
+
+// This is constexpr function used for checking compile-time constants.
+// Avoid `#pragma warning(disable: 4127) // C4127: expression is constant`.
+template<typename T> FLATBUFFERS_CONSTEXPR inline bool IsConstTrue(T t) {
+  return !!t;
+}
+
+// Enable C++ attribute [[]] if std:c++17 or higher.
+#if ((__cplusplus >= 201703L) \
+    || (defined(_MSVC_LANG) &&  (_MSVC_LANG >= 201703L)))
+  // All attributes unknown to an implementation are ignored without causing an error.
+  #define FLATBUFFERS_ATTRIBUTE(attr) [[attr]]
+
+  #define FLATBUFFERS_FALLTHROUGH() [[fallthrough]]
+#else
+  #define FLATBUFFERS_ATTRIBUTE(attr)
+
+  #if FLATBUFFERS_CLANG >= 30800
+    #define FLATBUFFERS_FALLTHROUGH() [[clang::fallthrough]]
+  #elif FLATBUFFERS_GCC >= 70300
+    #define FLATBUFFERS_FALLTHROUGH() [[gnu::fallthrough]]
+  #else
+    #define FLATBUFFERS_FALLTHROUGH()
+  #endif
+#endif
+
+/// @endcond
+
+/// @file
+namespace flatbuffers {
+
+/// @cond FLATBUFFERS_INTERNAL
+// Our default offset / size type, 32bit on purpose on 64bit systems.
+// Also, using a consistent offset type maintains compatibility of serialized
+// offset values between 32bit and 64bit systems.
+typedef uint32_t uoffset_t;
+
+// Signed offsets for references that can go in both directions.
+typedef int32_t soffset_t;
+
+// Offset/index used in v-tables, can be changed to uint8_t in
+// format forks to save a bit of space if desired.
+typedef uint16_t voffset_t;
+
+typedef uintmax_t largest_scalar_t;
+
+// In 32bits, this evaluates to 2GB - 1
+#define FLATBUFFERS_MAX_BUFFER_SIZE ((1ULL << (sizeof(::flatbuffers::soffset_t) * 8 - 1)) - 1)
+
+// We support aligning the contents of buffers up to this size.
+#define FLATBUFFERS_MAX_ALIGNMENT 16
+
+inline bool VerifyAlignmentRequirements(size_t align, size_t min_align = 1) {
+  return (min_align <= align) && (align <= (FLATBUFFERS_MAX_ALIGNMENT)) &&
+         (align & (align - 1)) == 0;  // must be power of 2
+}
+
+#if defined(_MSC_VER)
+  #pragma warning(disable: 4351) // C4351: new behavior: elements of array ... will be default initialized
+  #pragma warning(push)
+  #pragma warning(disable: 4127) // C4127: conditional expression is constant
+#endif
+
+template<typename T> T EndianSwap(T t) {
+  #if defined(_MSC_VER)
+    #define FLATBUFFERS_BYTESWAP16 _byteswap_ushort
+    #define FLATBUFFERS_BYTESWAP32 _byteswap_ulong
+    #define FLATBUFFERS_BYTESWAP64 _byteswap_uint64
+  #elif defined(__ICCARM__)
+    #define FLATBUFFERS_BYTESWAP16 __REV16
+    #define FLATBUFFERS_BYTESWAP32 __REV
+    #define FLATBUFFERS_BYTESWAP64(x) \
+       ((__REV(static_cast<uint32_t>(x >> 32U))) | (static_cast<uint64_t>(__REV(static_cast<uint32_t>(x)))) << 32U)
+  #else
+    #if defined(__GNUC__) && __GNUC__ * 100 + __GNUC_MINOR__ < 408 && !defined(__clang__)
+      // __builtin_bswap16 was missing prior to GCC 4.8.
+      #define FLATBUFFERS_BYTESWAP16(x) \
+        static_cast<uint16_t>(__builtin_bswap32(static_cast<uint32_t>(x) << 16))
+    #else
+      #define FLATBUFFERS_BYTESWAP16 __builtin_bswap16
+    #endif
+    #define FLATBUFFERS_BYTESWAP32 __builtin_bswap32
+    #define FLATBUFFERS_BYTESWAP64 __builtin_bswap64
+  #endif
+  if (sizeof(T) == 1) {   // Compile-time if-then's.
+    return t;
+  } else if (sizeof(T) == 2) {
+    union { T t; uint16_t i; } u = { t };
+    u.i = FLATBUFFERS_BYTESWAP16(u.i);
+    return u.t;
+  } else if (sizeof(T) == 4) {
+    union { T t; uint32_t i; } u = { t };
+    u.i = FLATBUFFERS_BYTESWAP32(u.i);
+    return u.t;
+  } else if (sizeof(T) == 8) {
+    union { T t; uint64_t i; } u = { t };
+    u.i = FLATBUFFERS_BYTESWAP64(u.i);
+    return u.t;
+  } else {
+    FLATBUFFERS_ASSERT(0);
+    return t;
+  }
+}
+
+#if defined(_MSC_VER)
+  #pragma warning(pop)
+#endif
+
+
+template<typename T> T EndianScalar(T t) {
+  #if FLATBUFFERS_LITTLEENDIAN
+    return t;
+  #else
+    return EndianSwap(t);
+  #endif
+}
+
+template<typename T>
+// UBSAN: C++ aliasing type rules, see std::bit_cast<> for details.
+__supress_ubsan__("alignment")
+T ReadScalar(const void *p) {
+  return EndianScalar(*reinterpret_cast<const T *>(p));
+}
+
+// See https://github.com/google/flatbuffers/issues/5950
+
+#if (FLATBUFFERS_GCC >= 100000) && (FLATBUFFERS_GCC < 110000)
+  #pragma GCC diagnostic push
+  #pragma GCC diagnostic ignored "-Wstringop-overflow"
+#endif
+
+template<typename T>
+// UBSAN: C++ aliasing type rules, see std::bit_cast<> for details.
+__supress_ubsan__("alignment")
+void WriteScalar(void *p, T t) {
+  *reinterpret_cast<T *>(p) = EndianScalar(t);
+}
+
+template<typename T> struct Offset;
+template<typename T> __supress_ubsan__("alignment") void WriteScalar(void *p, Offset<T> t) {
+  *reinterpret_cast<uoffset_t *>(p) = EndianScalar(t.o);
+}
+
+#if (FLATBUFFERS_GCC >= 100000) && (FLATBUFFERS_GCC < 110000)
+  #pragma GCC diagnostic pop
+#endif
+
+// Computes how many bytes you'd have to pad to be able to write an
+// "scalar_size" scalar if the buffer had grown to "buf_size" (downwards in
+// memory).
+__supress_ubsan__("unsigned-integer-overflow")
+inline size_t PaddingBytes(size_t buf_size, size_t scalar_size) {
+  return ((~buf_size) + 1) & (scalar_size - 1);
+}
+
+}  // namespace flatbuffers
+#endif  // FLATBUFFERS_BASE_H_

Libs/flatbuffers/code_generators.h

@@ -0,0 +1,235 @@
+/*
+ * Copyright 2014 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_CODE_GENERATORS_H_
+#define FLATBUFFERS_CODE_GENERATORS_H_
+
+#include <map>
+#include <sstream>
+
+#include "flatbuffers/idl.h"
+
+namespace flatbuffers {
+
+// Utility class to assist in generating code through use of text templates.
+//
+// Example code:
+//   CodeWriter code("\t");
+//   code.SetValue("NAME", "Foo");
+//   code += "void {{NAME}}() { printf("%s", "{{NAME}}"); }";
+//   code.SetValue("NAME", "Bar");
+//   code += "void {{NAME}}() { printf("%s", "{{NAME}}"); }";
+//   std::cout << code.ToString() << std::endl;
+//
+// Output:
+//  void Foo() { printf("%s", "Foo"); }
+//  void Bar() { printf("%s", "Bar"); }
+class CodeWriter {
+ public:
+  CodeWriter(std::string pad = std::string())
+      : pad_(pad), cur_ident_lvl_(0), ignore_ident_(false) {}
+
+  // Clears the current "written" code.
+  void Clear() {
+    stream_.str("");
+    stream_.clear();
+  }
+
+  // Associates a key with a value.  All subsequent calls to operator+=, where
+  // the specified key is contained in {{ and }} delimiters will be replaced by
+  // the given value.
+  void SetValue(const std::string &key, const std::string &value) {
+    value_map_[key] = value;
+  }
+
+  std::string GetValue(const std::string &key) const {
+    const auto it = value_map_.find(key);
+    return it == value_map_.end() ? "" : it->second;
+  }
+
+  // Appends the given text to the generated code as well as a newline
+  // character.  Any text within {{ and }} delimiters is replaced by values
+  // previously stored in the CodeWriter by calling SetValue above.  The newline
+  // will be suppressed if the text ends with the \\ character.
+  void operator+=(std::string text);
+
+  // Returns the current contents of the CodeWriter as a std::string.
+  std::string ToString() const { return stream_.str(); }
+
+  // Increase ident level for writing code
+  void IncrementIdentLevel() { cur_ident_lvl_++; }
+  // Decrease ident level for writing code
+  void DecrementIdentLevel() {
+    if (cur_ident_lvl_) cur_ident_lvl_--;
+  }
+
+  void SetPadding(const std::string &padding) { pad_ = padding; }
+
+ private:
+  std::map<std::string, std::string> value_map_;
+  std::stringstream stream_;
+  std::string pad_;
+  int cur_ident_lvl_;
+  bool ignore_ident_;
+
+  // Add ident padding (tab or space) based on ident level
+  void AppendIdent(std::stringstream &stream);
+};
+
+class BaseGenerator {
+ public:
+  virtual bool generate() = 0;
+
+  static std::string NamespaceDir(const Parser &parser, const std::string &path,
+                                  const Namespace &ns,
+                                  const bool dasherize = false);
+
+  static std::string ToDasherizedCase(const std::string pascal_case);
+
+  std::string GeneratedFileName(const std::string &path,
+                                const std::string &file_name,
+                                const IDLOptions &options) const;
+
+ protected:
+  BaseGenerator(const Parser &parser, const std::string &path,
+                const std::string &file_name, std::string qualifying_start,
+                std::string qualifying_separator, std::string default_extension)
+      : parser_(parser),
+        path_(path),
+        file_name_(file_name),
+        qualifying_start_(qualifying_start),
+        qualifying_separator_(qualifying_separator),
+        default_extension_(default_extension) {}
+  virtual ~BaseGenerator() {}
+
+  // No copy/assign.
+  BaseGenerator &operator=(const BaseGenerator &);
+  BaseGenerator(const BaseGenerator &);
+
+  std::string NamespaceDir(const Namespace &ns,
+                           const bool dasherize = false) const;
+
+  static const char *FlatBuffersGeneratedWarning();
+
+  static std::string FullNamespace(const char *separator, const Namespace &ns);
+
+  static std::string LastNamespacePart(const Namespace &ns);
+
+  // tracks the current namespace for early exit in WrapInNameSpace
+  // c++, java and csharp returns a different namespace from
+  // the following default (no early exit, always fully qualify),
+  // which works for js and php
+  virtual const Namespace *CurrentNameSpace() const { return nullptr; }
+
+  // Ensure that a type is prefixed with its namespace even within
+  // its own namespace to avoid conflict between generated method
+  // names and similarly named classes or structs
+  std::string WrapInNameSpace(const Namespace *ns,
+                              const std::string &name) const;
+
+  std::string WrapInNameSpace(const Definition &def) const;
+
+  std::string GetNameSpace(const Definition &def) const;
+
+  const Parser &parser_;
+  const std::string &path_;
+  const std::string &file_name_;
+  const std::string qualifying_start_;
+  const std::string qualifying_separator_;
+  const std::string default_extension_;
+};
+
+struct CommentConfig {
+  const char *first_line;
+  const char *content_line_prefix;
+  const char *last_line;
+};
+
+extern void GenComment(const std::vector<std::string> &dc,
+                       std::string *code_ptr, const CommentConfig *config,
+                       const char *prefix = "");
+
+class FloatConstantGenerator {
+ public:
+  virtual ~FloatConstantGenerator() {}
+  std::string GenFloatConstant(const FieldDef &field) const;
+
+ private:
+  virtual std::string Value(double v, const std::string &src) const = 0;
+  virtual std::string Inf(double v) const = 0;
+  virtual std::string NaN(double v) const = 0;
+
+  virtual std::string Value(float v, const std::string &src) const = 0;
+  virtual std::string Inf(float v) const = 0;
+  virtual std::string NaN(float v) const = 0;
+
+  template<typename T>
+  std::string GenFloatConstantImpl(const FieldDef &field) const;
+};
+
+class SimpleFloatConstantGenerator : public FloatConstantGenerator {
+ public:
+  SimpleFloatConstantGenerator(const char *nan_number,
+                               const char *pos_inf_number,
+                               const char *neg_inf_number);
+
+ private:
+  std::string Value(double v,
+                    const std::string &src) const FLATBUFFERS_OVERRIDE;
+  std::string Inf(double v) const FLATBUFFERS_OVERRIDE;
+  std::string NaN(double v) const FLATBUFFERS_OVERRIDE;
+
+  std::string Value(float v, const std::string &src) const FLATBUFFERS_OVERRIDE;
+  std::string Inf(float v) const FLATBUFFERS_OVERRIDE;
+  std::string NaN(float v) const FLATBUFFERS_OVERRIDE;
+
+  const std::string nan_number_;
+  const std::string pos_inf_number_;
+  const std::string neg_inf_number_;
+};
+
+// C++, C#, Java like generator.
+class TypedFloatConstantGenerator : public FloatConstantGenerator {
+ public:
+  TypedFloatConstantGenerator(const char *double_prefix,
+                              const char *single_prefix, const char *nan_number,
+                              const char *pos_inf_number,
+                              const char *neg_inf_number = "");
+
+ private:
+  std::string Value(double v,
+                    const std::string &src) const FLATBUFFERS_OVERRIDE;
+  std::string Inf(double v) const FLATBUFFERS_OVERRIDE;
+
+  std::string NaN(double v) const FLATBUFFERS_OVERRIDE;
+
+  std::string Value(float v, const std::string &src) const FLATBUFFERS_OVERRIDE;
+  std::string Inf(float v) const FLATBUFFERS_OVERRIDE;
+  std::string NaN(float v) const FLATBUFFERS_OVERRIDE;
+
+  std::string MakeNaN(const std::string &prefix) const;
+  std::string MakeInf(bool neg, const std::string &prefix) const;
+
+  const std::string double_prefix_;
+  const std::string single_prefix_;
+  const std::string nan_number_;
+  const std::string pos_inf_number_;
+  const std::string neg_inf_number_;
+};
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_CODE_GENERATORS_H_

Libs/flatbuffers/flatc.h

@@ -0,0 +1,100 @@
+/*
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_FLATC_H_
+#define FLATBUFFERS_FLATC_H_
+
+#include <functional>
+#include <limits>
+#include <string>
+
+#include "flatbuffers/flatbuffers.h"
+#include "flatbuffers/idl.h"
+#include "flatbuffers/util.h"
+
+namespace flatbuffers {
+
+extern void LogCompilerWarn(const std::string &warn);
+extern void LogCompilerError(const std::string &err);
+
+class FlatCompiler {
+ public:
+  // Output generator for the various programming languages and formats we
+  // support.
+  struct Generator {
+    typedef bool (*GenerateFn)(const flatbuffers::Parser &parser,
+                               const std::string &path,
+                               const std::string &file_name);
+    typedef std::string (*MakeRuleFn)(const flatbuffers::Parser &parser,
+                                      const std::string &path,
+                                      const std::string &file_name);
+
+    GenerateFn generate;
+    const char *generator_opt_short;
+    const char *generator_opt_long;
+    const char *lang_name;
+    bool schema_only;
+    GenerateFn generateGRPC;
+    flatbuffers::IDLOptions::Language lang;
+    const char *generator_help;
+    MakeRuleFn make_rule;
+  };
+
+  typedef void (*WarnFn)(const FlatCompiler *flatc, const std::string &warn,
+                         bool show_exe_name);
+
+  typedef void (*ErrorFn)(const FlatCompiler *flatc, const std::string &err,
+                          bool usage, bool show_exe_name);
+
+  // Parameters required to initialize the FlatCompiler.
+  struct InitParams {
+    InitParams()
+        : generators(nullptr),
+          num_generators(0),
+          warn_fn(nullptr),
+          error_fn(nullptr) {}
+
+    const Generator *generators;
+    size_t num_generators;
+    WarnFn warn_fn;
+    ErrorFn error_fn;
+  };
+
+  explicit FlatCompiler(const InitParams &params) : params_(params) {}
+
+  int Compile(int argc, const char **argv);
+
+  std::string GetUsageString(const char *program_name) const;
+
+ private:
+  void ParseFile(flatbuffers::Parser &parser, const std::string &filename,
+                 const std::string &contents,
+                 std::vector<const char *> &include_directories) const;
+
+  void LoadBinarySchema(Parser &parser, const std::string &filename,
+                        const std::string &contents);
+
+  void Warn(const std::string &warn, bool show_exe_name = true) const;
+
+  void Error(const std::string &err, bool usage = true,
+             bool show_exe_name = true) const;
+
+  InitParams params_;
+};
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_FLATC_H_

Libs/flatbuffers/grpc.h

@@ -0,0 +1,298 @@
+/*
+ * Copyright 2014 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_GRPC_H_
+#define FLATBUFFERS_GRPC_H_
+
+// Helper functionality to glue FlatBuffers and GRPC.
+
+#include "flatbuffers/flatbuffers.h"
+#include "grpc/byte_buffer_reader.h"
+#include "grpcpp/support/byte_buffer.h"
+#include "grpcpp/support/slice.h"
+
+namespace flatbuffers {
+namespace grpc {
+
+// Message is a typed wrapper around a buffer that manages the underlying
+// `grpc_slice` and also provides flatbuffers-specific helpers such as `Verify`
+// and `GetRoot`. Since it is backed by a `grpc_slice`, the underlying buffer
+// is refcounted and ownership is be managed automatically.
+template<class T> class Message {
+ public:
+  Message() {}
+
+  Message(::grpc::Slice slice) : slice_(slice) {}
+
+  Message &operator=(const Message &other) = delete;
+
+  Message(Message &&other) = default;
+
+  Message(const Message &other) = delete;
+
+  Message &operator=(Message &&other) = default;
+
+  const uint8_t *mutable_data() const { return slice_.begin(); }
+
+  const uint8_t *data() const { return slice_.begin(); }
+
+  size_t size() const { return slice_.size(); }
+
+  bool Verify() const {
+    Verifier verifier(data(), size());
+    return verifier.VerifyBuffer<T>(nullptr);
+  }
+
+  T *GetMutableRoot() { return flatbuffers::GetMutableRoot<T>(mutable_data()); }
+
+  const T *GetRoot() const { return flatbuffers::GetRoot<T>(data()); }
+
+  // This is only intended for serializer use, or if you know what you're doing
+  const ::grpc::Slice &BorrowSlice() const { return slice_; }
+
+ private:
+  ::grpc::Slice slice_;
+};
+
+class MessageBuilder;
+
+// SliceAllocator is a gRPC-specific allocator that uses the `grpc_slice`
+// refcounted slices to manage memory ownership. This makes it easy and
+// efficient to transfer buffers to gRPC.
+class SliceAllocator : public Allocator {
+ public:
+  SliceAllocator() {}
+
+  SliceAllocator(const SliceAllocator &other) = delete;
+  SliceAllocator &operator=(const SliceAllocator &other) = delete;
+
+  SliceAllocator(SliceAllocator &&other) {
+    // default-construct and swap idiom
+    swap(other);
+  }
+
+  SliceAllocator &operator=(SliceAllocator &&other) {
+    // move-construct and swap idiom
+    SliceAllocator temp(std::move(other));
+    swap(temp);
+    return *this;
+  }
+
+  void swap(SliceAllocator &other) {
+    using std::swap;
+    swap(slice_, other.slice_);
+  }
+
+  virtual ~SliceAllocator() {}
+
+  virtual uint8_t *allocate(size_t size) override {
+    FLATBUFFERS_ASSERT(slice_.size() == 0);
+    slice_ = ::grpc::Slice(size);
+    return const_cast<uint8_t *>(slice_.begin());
+  }
+
+  virtual void deallocate(uint8_t *p, size_t size) override {
+    FLATBUFFERS_ASSERT(p == slice_.begin());
+    FLATBUFFERS_ASSERT(size == slice_.size());
+    slice_ = ::grpc::Slice();
+  }
+
+  virtual uint8_t *reallocate_downward(uint8_t *old_p, size_t old_size,
+                                       size_t new_size, size_t in_use_back,
+                                       size_t in_use_front) override {
+    FLATBUFFERS_ASSERT(old_p == slice_.begin());
+    FLATBUFFERS_ASSERT(old_size == slice_.size());
+    FLATBUFFERS_ASSERT(new_size > old_size);
+    ::grpc::Slice old_slice = slice_;
+    ::grpc::Slice new_slice = ::grpc::Slice(new_size);
+    uint8_t *new_p = const_cast<uint8_t *>(new_slice.begin());
+    memcpy_downward(old_p, old_size, new_p, new_size, in_use_back,
+                    in_use_front);
+    slice_ = new_slice;
+    return new_p;
+  }
+
+ private:
+  ::grpc::Slice &get_slice(uint8_t *p, size_t size) {
+    FLATBUFFERS_ASSERT(p == slice_.begin());
+    FLATBUFFERS_ASSERT(size == slice_.size());
+    return slice_;
+  }
+
+  ::grpc::Slice slice_;
+
+  friend class MessageBuilder;
+};
+
+// SliceAllocatorMember is a hack to ensure that the MessageBuilder's
+// slice_allocator_ member is constructed before the FlatBufferBuilder, since
+// the allocator is used in the FlatBufferBuilder ctor.
+namespace detail {
+struct SliceAllocatorMember {
+  SliceAllocator slice_allocator_;
+};
+}  // namespace detail
+
+// MessageBuilder is a gRPC-specific FlatBufferBuilder that uses SliceAllocator
+// to allocate gRPC buffers.
+class MessageBuilder : private detail::SliceAllocatorMember,
+                       public FlatBufferBuilder {
+ public:
+  explicit MessageBuilder(uoffset_t initial_size = 1024)
+      : FlatBufferBuilder(initial_size, &slice_allocator_, false) {}
+
+  MessageBuilder(const MessageBuilder &other) = delete;
+  MessageBuilder &operator=(const MessageBuilder &other) = delete;
+
+  MessageBuilder(MessageBuilder &&other)
+      : FlatBufferBuilder(1024, &slice_allocator_, false) {
+    // Default construct and swap idiom.
+    Swap(other);
+  }
+
+  /// Create a MessageBuilder from a FlatBufferBuilder.
+  explicit MessageBuilder(FlatBufferBuilder &&src,
+                          void (*dealloc)(void *,
+                                          size_t) = &DefaultAllocator::dealloc)
+      : FlatBufferBuilder(1024, &slice_allocator_, false) {
+    src.Swap(*this);
+    src.SwapBufAllocator(*this);
+    if (buf_.capacity()) {
+      uint8_t *buf = buf_.scratch_data();  // pointer to memory
+      size_t capacity = buf_.capacity();   // size of memory
+      slice_allocator_.slice_ = ::grpc::Slice(buf, capacity, dealloc);
+    } else {
+      slice_allocator_.slice_ = ::grpc::Slice();
+    }
+  }
+
+  /// Move-assign a FlatBufferBuilder to a MessageBuilder.
+  /// Only FlatBufferBuilder with default allocator (basically, nullptr) is
+  /// supported.
+  MessageBuilder &operator=(FlatBufferBuilder &&src) {
+    // Move construct a temporary and swap
+    MessageBuilder temp(std::move(src));
+    Swap(temp);
+    return *this;
+  }
+
+  MessageBuilder &operator=(MessageBuilder &&other) {
+    // Move construct a temporary and swap
+    MessageBuilder temp(std::move(other));
+    Swap(temp);
+    return *this;
+  }
+
+  void Swap(MessageBuilder &other) {
+    slice_allocator_.swap(other.slice_allocator_);
+    FlatBufferBuilder::Swap(other);
+    // After swapping the FlatBufferBuilder, we swap back the allocator, which
+    // restores the original allocator back in place. This is necessary because
+    // MessageBuilder's allocator is its own member (SliceAllocatorMember). The
+    // allocator passed to FlatBufferBuilder::vector_downward must point to this
+    // member.
+    buf_.swap_allocator(other.buf_);
+  }
+
+  // Releases the ownership of the buffer pointer.
+  // Returns the size, offset, and the original grpc_slice that
+  // allocated the buffer. Also see grpc_slice_unref().
+  uint8_t *ReleaseRaw(size_t &size, size_t &offset, ::grpc::Slice &slice) {
+    uint8_t *buf = FlatBufferBuilder::ReleaseRaw(size, offset);
+    slice = slice_allocator_.slice_;
+    slice_allocator_.slice_ = ::grpc::Slice();
+    return buf;
+  }
+
+  ~MessageBuilder() {}
+
+  // GetMessage extracts the subslice of the buffer corresponding to the
+  // flatbuffers-encoded region and wraps it in a `Message<T>` to handle buffer
+  // ownership.
+  template<class T> Message<T> GetMessage() {
+    auto buf_data = buf_.scratch_data();  // pointer to memory
+    auto buf_size = buf_.capacity();      // size of memory
+    auto msg_data = buf_.data();          // pointer to msg
+    auto msg_size = buf_.size();          // size of msg
+    // Do some sanity checks on data/size
+    FLATBUFFERS_ASSERT(msg_data);
+    FLATBUFFERS_ASSERT(msg_size);
+    FLATBUFFERS_ASSERT(msg_data >= buf_data);
+    FLATBUFFERS_ASSERT(msg_data + msg_size <= buf_data + buf_size);
+    // Calculate offsets from the buffer start
+    auto begin = msg_data - buf_data;
+    auto end = begin + msg_size;
+    // Get the slice we are working with (no refcount change)
+    ::grpc::Slice slice = slice_allocator_.get_slice(buf_data, buf_size);
+    // Extract a subslice of the existing slice (increment refcount)
+    ::grpc::Slice subslice = slice.sub(begin, end);
+    // Wrap the subslice in a `Message<T>`, but don't increment refcount
+    Message<T> msg(subslice);
+    return msg;
+  }
+
+  template<class T> Message<T> ReleaseMessage() {
+    Message<T> msg = GetMessage<T>();
+    Reset();
+    return msg;
+  }
+
+ private:
+  // SliceAllocator slice_allocator_;  // part of SliceAllocatorMember
+};
+
+}  // namespace grpc
+}  // namespace flatbuffers
+
+namespace grpc {
+
+template<class T> class SerializationTraits<flatbuffers::grpc::Message<T>> {
+ public:
+  static grpc::Status Serialize(const flatbuffers::grpc::Message<T> &msg,
+                                ByteBuffer *buffer, bool *own_buffer) {
+    // Package the single slice into a `ByteBuffer`,
+    // incrementing the refcount in the process.
+    *buffer = ByteBuffer(&msg.BorrowSlice(), 1);
+    *own_buffer = true;
+    return grpc::Status::OK;
+  }
+
+  // Deserialize by pulling the
+  static grpc::Status Deserialize(ByteBuffer *buf,
+                                  flatbuffers::grpc::Message<T> *msg) {
+    Slice slice;
+    if (!buf->TrySingleSlice(&slice).ok()) {
+      if (!buf->DumpToSingleSlice(&slice).ok()) {
+        return ::grpc::Status(::grpc::StatusCode::INTERNAL, "No payload");
+      }
+    }
+    *msg = flatbuffers::grpc::Message<T>(slice);
+#if FLATBUFFERS_GRPC_DISABLE_AUTO_VERIFICATION
+    return ::grpc::Status::OK;
+#else
+    if (msg->Verify()) {
+      return ::grpc::Status::OK;
+    } else {
+      return ::grpc::Status(::grpc::StatusCode::INTERNAL,
+                            "Message verification failed");
+    }
+#endif
+  }
+};
+
+}  // namespace grpc
+
+#endif  // FLATBUFFERS_GRPC_H_

Libs/flatbuffers/hash.h

@@ -0,0 +1,127 @@
+/*
+ * Copyright 2015 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_HASH_H_
+#define FLATBUFFERS_HASH_H_
+
+#include <cstdint>
+#include <cstring>
+
+#include "flatbuffers/flatbuffers.h"
+
+namespace flatbuffers {
+
+template<typename T> struct FnvTraits {
+  static const T kFnvPrime;
+  static const T kOffsetBasis;
+};
+
+template<> struct FnvTraits<uint32_t> {
+  static const uint32_t kFnvPrime = 0x01000193;
+  static const uint32_t kOffsetBasis = 0x811C9DC5;
+};
+
+template<> struct FnvTraits<uint64_t> {
+  static const uint64_t kFnvPrime = 0x00000100000001b3ULL;
+  static const uint64_t kOffsetBasis = 0xcbf29ce484222645ULL;
+};
+
+template<typename T> T HashFnv1(const char *input) {
+  T hash = FnvTraits<T>::kOffsetBasis;
+  for (const char *c = input; *c; ++c) {
+    hash *= FnvTraits<T>::kFnvPrime;
+    hash ^= static_cast<unsigned char>(*c);
+  }
+  return hash;
+}
+
+template<typename T> T HashFnv1a(const char *input) {
+  T hash = FnvTraits<T>::kOffsetBasis;
+  for (const char *c = input; *c; ++c) {
+    hash ^= static_cast<unsigned char>(*c);
+    hash *= FnvTraits<T>::kFnvPrime;
+  }
+  return hash;
+}
+
+template<> inline uint16_t HashFnv1<uint16_t>(const char *input) {
+  uint32_t hash = HashFnv1<uint32_t>(input);
+  return (hash >> 16) ^ (hash & 0xffff);
+}
+
+template<> inline uint16_t HashFnv1a<uint16_t>(const char *input) {
+  uint32_t hash = HashFnv1a<uint32_t>(input);
+  return (hash >> 16) ^ (hash & 0xffff);
+}
+
+template<typename T> struct NamedHashFunction {
+  const char *name;
+
+  typedef T (*HashFunction)(const char *);
+  HashFunction function;
+};
+
+const NamedHashFunction<uint16_t> kHashFunctions16[] = {
+  { "fnv1_16", HashFnv1<uint16_t> },
+  { "fnv1a_16", HashFnv1a<uint16_t> },
+};
+
+const NamedHashFunction<uint32_t> kHashFunctions32[] = {
+  { "fnv1_32", HashFnv1<uint32_t> },
+  { "fnv1a_32", HashFnv1a<uint32_t> },
+};
+
+const NamedHashFunction<uint64_t> kHashFunctions64[] = {
+  { "fnv1_64", HashFnv1<uint64_t> },
+  { "fnv1a_64", HashFnv1a<uint64_t> },
+};
+
+inline NamedHashFunction<uint16_t>::HashFunction FindHashFunction16(
+    const char *name) {
+  std::size_t size = sizeof(kHashFunctions16) / sizeof(kHashFunctions16[0]);
+  for (std::size_t i = 0; i < size; ++i) {
+    if (std::strcmp(name, kHashFunctions16[i].name) == 0) {
+      return kHashFunctions16[i].function;
+    }
+  }
+  return nullptr;
+}
+
+inline NamedHashFunction<uint32_t>::HashFunction FindHashFunction32(
+    const char *name) {
+  std::size_t size = sizeof(kHashFunctions32) / sizeof(kHashFunctions32[0]);
+  for (std::size_t i = 0; i < size; ++i) {
+    if (std::strcmp(name, kHashFunctions32[i].name) == 0) {
+      return kHashFunctions32[i].function;
+    }
+  }
+  return nullptr;
+}
+
+inline NamedHashFunction<uint64_t>::HashFunction FindHashFunction64(
+    const char *name) {
+  std::size_t size = sizeof(kHashFunctions64) / sizeof(kHashFunctions64[0]);
+  for (std::size_t i = 0; i < size; ++i) {
+    if (std::strcmp(name, kHashFunctions64[i].name) == 0) {
+      return kHashFunctions64[i].function;
+    }
+  }
+  return nullptr;
+}
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_HASH_H_

Libs/flatbuffers/minireflect.h

@@ -0,0 +1,419 @@
+/*
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_MINIREFLECT_H_
+#define FLATBUFFERS_MINIREFLECT_H_
+
+#include "flatbuffers/flatbuffers.h"
+#include "flatbuffers/util.h"
+
+namespace flatbuffers {
+
+// Utilities that can be used with the "mini reflection" tables present
+// in generated code with --reflect-types (only types) or --reflect-names
+// (also names).
+// This allows basic reflection functionality such as pretty-printing
+// that does not require the use of the schema parser or loading of binary
+// schema files at runtime (reflection.h).
+
+// For any of the functions below that take `const TypeTable *`, you pass
+// `FooTypeTable()` if the type of the root is `Foo`.
+
+// First, a generic iterator that can be used by multiple algorithms.
+
+struct IterationVisitor {
+  // These mark the scope of a table or struct.
+  virtual void StartSequence() {}
+  virtual void EndSequence() {}
+  // Called for each field regardless of whether it is present or not.
+  // If not present, val == nullptr. set_idx is the index of all set fields.
+  virtual void Field(size_t /*field_idx*/, size_t /*set_idx*/,
+                     ElementaryType /*type*/, bool /*is_vector*/,
+                     const TypeTable * /*type_table*/, const char * /*name*/,
+                     const uint8_t * /*val*/) {}
+  // Called for a value that is actually present, after a field, or as part
+  // of a vector.
+  virtual void UType(uint8_t, const char *) {}
+  virtual void Bool(bool) {}
+  virtual void Char(int8_t, const char *) {}
+  virtual void UChar(uint8_t, const char *) {}
+  virtual void Short(int16_t, const char *) {}
+  virtual void UShort(uint16_t, const char *) {}
+  virtual void Int(int32_t, const char *) {}
+  virtual void UInt(uint32_t, const char *) {}
+  virtual void Long(int64_t) {}
+  virtual void ULong(uint64_t) {}
+  virtual void Float(float) {}
+  virtual void Double(double) {}
+  virtual void String(const String *) {}
+  virtual void Unknown(const uint8_t *) {}  // From a future version.
+  // These mark the scope of a vector.
+  virtual void StartVector() {}
+  virtual void EndVector() {}
+  virtual void Element(size_t /*i*/, ElementaryType /*type*/,
+                       const TypeTable * /*type_table*/,
+                       const uint8_t * /*val*/) {}
+  virtual ~IterationVisitor() {}
+};
+
+inline size_t InlineSize(ElementaryType type, const TypeTable *type_table) {
+  switch (type) {
+    case ET_UTYPE:
+    case ET_BOOL:
+    case ET_CHAR:
+    case ET_UCHAR: return 1;
+    case ET_SHORT:
+    case ET_USHORT: return 2;
+    case ET_INT:
+    case ET_UINT:
+    case ET_FLOAT:
+    case ET_STRING: return 4;
+    case ET_LONG:
+    case ET_ULONG:
+    case ET_DOUBLE: return 8;
+    case ET_SEQUENCE:
+      switch (type_table->st) {
+        case ST_TABLE:
+        case ST_UNION: return 4;
+        case ST_STRUCT:
+          return static_cast<size_t>(type_table->values[type_table->num_elems]);
+        default: FLATBUFFERS_ASSERT(false); return 1;
+      }
+    default: FLATBUFFERS_ASSERT(false); return 1;
+  }
+}
+
+inline int64_t LookupEnum(int64_t enum_val, const int64_t *values,
+                          size_t num_values) {
+  if (!values) return enum_val;
+  for (size_t i = 0; i < num_values; i++) {
+    if (enum_val == values[i]) return static_cast<int64_t>(i);
+  }
+  return -1;  // Unknown enum value.
+}
+
+template<typename T> const char *EnumName(T tval, const TypeTable *type_table) {
+  if (!type_table || !type_table->names) return nullptr;
+  auto i = LookupEnum(static_cast<int64_t>(tval), type_table->values,
+                      type_table->num_elems);
+  if (i >= 0 && i < static_cast<int64_t>(type_table->num_elems)) {
+    return type_table->names[i];
+  }
+  return nullptr;
+}
+
+void IterateObject(const uint8_t *obj, const TypeTable *type_table,
+                   IterationVisitor *visitor);
+
+inline void IterateValue(ElementaryType type, const uint8_t *val,
+                         const TypeTable *type_table, const uint8_t *prev_val,
+                         soffset_t vector_index, IterationVisitor *visitor) {
+  switch (type) {
+    case ET_UTYPE: {
+      auto tval = ReadScalar<uint8_t>(val);
+      visitor->UType(tval, EnumName(tval, type_table));
+      break;
+    }
+    case ET_BOOL: {
+      visitor->Bool(ReadScalar<uint8_t>(val) != 0);
+      break;
+    }
+    case ET_CHAR: {
+      auto tval = ReadScalar<int8_t>(val);
+      visitor->Char(tval, EnumName(tval, type_table));
+      break;
+    }
+    case ET_UCHAR: {
+      auto tval = ReadScalar<uint8_t>(val);
+      visitor->UChar(tval, EnumName(tval, type_table));
+      break;
+    }
+    case ET_SHORT: {
+      auto tval = ReadScalar<int16_t>(val);
+      visitor->Short(tval, EnumName(tval, type_table));
+      break;
+    }
+    case ET_USHORT: {
+      auto tval = ReadScalar<uint16_t>(val);
+      visitor->UShort(tval, EnumName(tval, type_table));
+      break;
+    }
+    case ET_INT: {
+      auto tval = ReadScalar<int32_t>(val);
+      visitor->Int(tval, EnumName(tval, type_table));
+      break;
+    }
+    case ET_UINT: {
+      auto tval = ReadScalar<uint32_t>(val);
+      visitor->UInt(tval, EnumName(tval, type_table));
+      break;
+    }
+    case ET_LONG: {
+      visitor->Long(ReadScalar<int64_t>(val));
+      break;
+    }
+    case ET_ULONG: {
+      visitor->ULong(ReadScalar<uint64_t>(val));
+      break;
+    }
+    case ET_FLOAT: {
+      visitor->Float(ReadScalar<float>(val));
+      break;
+    }
+    case ET_DOUBLE: {
+      visitor->Double(ReadScalar<double>(val));
+      break;
+    }
+    case ET_STRING: {
+      val += ReadScalar<uoffset_t>(val);
+      visitor->String(reinterpret_cast<const String *>(val));
+      break;
+    }
+    case ET_SEQUENCE: {
+      switch (type_table->st) {
+        case ST_TABLE:
+          val += ReadScalar<uoffset_t>(val);
+          IterateObject(val, type_table, visitor);
+          break;
+        case ST_STRUCT: IterateObject(val, type_table, visitor); break;
+        case ST_UNION: {
+          val += ReadScalar<uoffset_t>(val);
+          FLATBUFFERS_ASSERT(prev_val);
+          auto union_type = *prev_val;  // Always a uint8_t.
+          if (vector_index >= 0) {
+            auto type_vec = reinterpret_cast<const Vector<uint8_t> *>(prev_val);
+            union_type = type_vec->Get(static_cast<uoffset_t>(vector_index));
+          }
+          auto type_code_idx =
+              LookupEnum(union_type, type_table->values, type_table->num_elems);
+          if (type_code_idx >= 0 &&
+              type_code_idx < static_cast<int32_t>(type_table->num_elems)) {
+            auto type_code = type_table->type_codes[type_code_idx];
+            switch (type_code.base_type) {
+              case ET_SEQUENCE: {
+                auto ref = type_table->type_refs[type_code.sequence_ref]();
+                IterateObject(val, ref, visitor);
+                break;
+              }
+              case ET_STRING:
+                visitor->String(reinterpret_cast<const String *>(val));
+                break;
+              default: visitor->Unknown(val);
+            }
+          } else {
+            visitor->Unknown(val);
+          }
+          break;
+        }
+        case ST_ENUM: FLATBUFFERS_ASSERT(false); break;
+      }
+      break;
+    }
+    default: {
+      visitor->Unknown(val);
+      break;
+    }
+  }
+}
+
+inline void IterateObject(const uint8_t *obj, const TypeTable *type_table,
+                          IterationVisitor *visitor) {
+  visitor->StartSequence();
+  const uint8_t *prev_val = nullptr;
+  size_t set_idx = 0;
+  size_t array_idx = 0;
+  for (size_t i = 0; i < type_table->num_elems; i++) {
+    auto type_code = type_table->type_codes[i];
+    auto type = static_cast<ElementaryType>(type_code.base_type);
+    auto is_repeating = type_code.is_repeating != 0;
+    auto ref_idx = type_code.sequence_ref;
+    const TypeTable *ref = nullptr;
+    if (ref_idx >= 0) { ref = type_table->type_refs[ref_idx](); }
+    auto name = type_table->names ? type_table->names[i] : nullptr;
+    const uint8_t *val = nullptr;
+    if (type_table->st == ST_TABLE) {
+      val = reinterpret_cast<const Table *>(obj)->GetAddressOf(
+          FieldIndexToOffset(static_cast<voffset_t>(i)));
+    } else {
+      val = obj + type_table->values[i];
+    }
+    visitor->Field(i, set_idx, type, is_repeating, ref, name, val);
+    if (val) {
+      set_idx++;
+      if (is_repeating) {
+        auto elem_ptr = val;
+        size_t size = 0;
+        if (type_table->st == ST_TABLE) {
+          // variable length vector
+          val += ReadScalar<uoffset_t>(val);
+          auto vec = reinterpret_cast<const Vector<uint8_t> *>(val);
+          elem_ptr = vec->Data();
+          size = vec->size();
+        } else {
+          // otherwise fixed size array
+          size = type_table->array_sizes[array_idx];
+          ++array_idx;
+        }
+        visitor->StartVector();
+        for (size_t j = 0; j < size; j++) {
+          visitor->Element(j, type, ref, elem_ptr);
+          IterateValue(type, elem_ptr, ref, prev_val, static_cast<soffset_t>(j),
+                       visitor);
+          elem_ptr += InlineSize(type, ref);
+        }
+        visitor->EndVector();
+      } else {
+        IterateValue(type, val, ref, prev_val, -1, visitor);
+      }
+    }
+    prev_val = val;
+  }
+  visitor->EndSequence();
+}
+
+inline void IterateFlatBuffer(const uint8_t *buffer,
+                              const TypeTable *type_table,
+                              IterationVisitor *callback) {
+  IterateObject(GetRoot<uint8_t>(buffer), type_table, callback);
+}
+
+// Outputting a Flatbuffer to a string. Tries to conform as close to JSON /
+// the output generated by idl_gen_text.cpp.
+
+struct ToStringVisitor : public IterationVisitor {
+  std::string s;
+  std::string d;
+  bool q;
+  std::string in;
+  size_t indent_level;
+  bool vector_delimited;
+  ToStringVisitor(std::string delimiter, bool quotes, std::string indent,
+                  bool vdelimited = true)
+      : d(delimiter),
+        q(quotes),
+        in(indent),
+        indent_level(0),
+        vector_delimited(vdelimited) {}
+  ToStringVisitor(std::string delimiter)
+      : d(delimiter),
+        q(false),
+        in(""),
+        indent_level(0),
+        vector_delimited(true) {}
+
+  void append_indent() {
+    for (size_t i = 0; i < indent_level; i++) { s += in; }
+  }
+
+  void StartSequence() {
+    s += "{";
+    s += d;
+    indent_level++;
+  }
+  void EndSequence() {
+    s += d;
+    indent_level--;
+    append_indent();
+    s += "}";
+  }
+  void Field(size_t /*field_idx*/, size_t set_idx, ElementaryType /*type*/,
+             bool /*is_vector*/, const TypeTable * /*type_table*/,
+             const char *name, const uint8_t *val) {
+    if (!val) return;
+    if (set_idx) {
+      s += ",";
+      s += d;
+    }
+    append_indent();
+    if (name) {
+      if (q) s += "\"";
+      s += name;
+      if (q) s += "\"";
+      s += ": ";
+    }
+  }
+  template<typename T> void Named(T x, const char *name) {
+    if (name) {
+      if (q) s += "\"";
+      s += name;
+      if (q) s += "\"";
+    } else {
+      s += NumToString(x);
+    }
+  }
+  void UType(uint8_t x, const char *name) { Named(x, name); }
+  void Bool(bool x) { s += x ? "true" : "false"; }
+  void Char(int8_t x, const char *name) { Named(x, name); }
+  void UChar(uint8_t x, const char *name) { Named(x, name); }
+  void Short(int16_t x, const char *name) { Named(x, name); }
+  void UShort(uint16_t x, const char *name) { Named(x, name); }
+  void Int(int32_t x, const char *name) { Named(x, name); }
+  void UInt(uint32_t x, const char *name) { Named(x, name); }
+  void Long(int64_t x) { s += NumToString(x); }
+  void ULong(uint64_t x) { s += NumToString(x); }
+  void Float(float x) { s += NumToString(x); }
+  void Double(double x) { s += NumToString(x); }
+  void String(const struct String *str) {
+    EscapeString(str->c_str(), str->size(), &s, true, false);
+  }
+  void Unknown(const uint8_t *) { s += "(?)"; }
+  void StartVector() {
+    s += "[";
+    if (vector_delimited) {
+      s += d;
+      indent_level++;
+      append_indent();
+    } else {
+      s += " ";
+    }
+  }
+  void EndVector() {
+    if (vector_delimited) {
+      s += d;
+      indent_level--;
+      append_indent();
+    } else {
+      s += " ";
+    }
+    s += "]";
+  }
+  void Element(size_t i, ElementaryType /*type*/,
+               const TypeTable * /*type_table*/, const uint8_t * /*val*/) {
+    if (i) {
+      s += ",";
+      if (vector_delimited) {
+        s += d;
+        append_indent();
+      } else {
+        s += " ";
+      }
+    }
+  }
+};
+
+inline std::string FlatBufferToString(const uint8_t *buffer,
+                                      const TypeTable *type_table,
+                                      bool multi_line = false,
+                                      bool vector_delimited = true) {
+  ToStringVisitor tostring_visitor(multi_line ? "\n" : " ", false, "",
+                                   vector_delimited);
+  IterateFlatBuffer(buffer, type_table, &tostring_visitor);
+  return tostring_visitor.s;
+}
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_MINIREFLECT_H_

Libs/flatbuffers/pch/flatc_pch.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_FLATC_PCH_H_
+#define FLATBUFFERS_FLATC_PCH_H_
+
+// stl
+#include <cmath>
+#include <sstream>
+#include <cassert>
+#include <unordered_set>
+#include <unordered_map>
+#include <iostream>
+#include <functional>
+#include <set>
+#include <iterator>
+#include <tuple>
+
+// flatbuffers
+#include "flatbuffers/pch/pch.h"
+#include "flatbuffers/code_generators.h"
+#include "flatbuffers/flatbuffers.h"
+#include "flatbuffers/flexbuffers.h"
+#include "flatbuffers/idl.h"
+
+#endif // FLATBUFFERS_FLATC_PCH_H_

Libs/flatbuffers/pch/pch.h

@@ -0,0 +1,38 @@
+/*
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_PCH_H_
+#define FLATBUFFERS_PCH_H_
+
+// stl
+#include <cstdint>
+#include <cstring>
+#include <algorithm>
+#include <list>
+#include <string>
+#include <utility>
+#include <iomanip>
+#include <map>
+#include <memory>
+#include <limits>
+#include <stack>
+#include <vector>
+#include <type_traits>
+
+// flatbuffers
+#include "flatbuffers/util.h"
+
+#endif // FLATBUFFERS_PCH_H_

Libs/flatbuffers/reflection.h

@@ -0,0 +1,502 @@
+/*
+ * Copyright 2015 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_REFLECTION_H_
+#define FLATBUFFERS_REFLECTION_H_
+
+// This is somewhat of a circular dependency because flatc (and thus this
+// file) is needed to generate this header in the first place.
+// Should normally not be a problem since it can be generated by the
+// previous version of flatc whenever this code needs to change.
+// See reflection/generate_code.sh
+#include "flatbuffers/reflection_generated.h"
+
+// Helper functionality for reflection.
+
+namespace flatbuffers {
+
+// ------------------------- GETTERS -------------------------
+
+inline bool IsScalar(reflection::BaseType t) {
+  return t >= reflection::UType && t <= reflection::Double;
+}
+inline bool IsInteger(reflection::BaseType t) {
+  return t >= reflection::UType && t <= reflection::ULong;
+}
+inline bool IsFloat(reflection::BaseType t) {
+  return t == reflection::Float || t == reflection::Double;
+}
+inline bool IsLong(reflection::BaseType t) {
+  return t == reflection::Long || t == reflection::ULong;
+}
+
+// Size of a basic type, don't use with structs.
+inline size_t GetTypeSize(reflection::BaseType base_type) {
+  // This needs to correspond to the BaseType enum.
+  static size_t sizes[] = {
+    0,  // None
+    1,  // UType
+    1,  // Bool
+    1,  // Byte
+    1,  // UByte
+    2,  // Short
+    2,  // UShort
+    4,  // Int
+    4,  // UInt
+    8,  // Long
+    8,  // ULong
+    4,  // Float
+    8,  // Double
+    4,  // String
+    4,  // Vector
+    4,  // Obj
+    4,  // Union
+    0,  // Array. Only used in structs. 0 was chosen to prevent out-of-bounds
+        // errors.
+
+    0  // MaxBaseType. This must be kept the last entry in this array.
+  };
+  static_assert(sizeof(sizes) / sizeof(size_t) == reflection::MaxBaseType + 1,
+                "Size of sizes[] array does not match the count of BaseType "
+                "enum values.");
+  return sizes[base_type];
+}
+
+// Same as above, but now correctly returns the size of a struct if
+// the field (or vector element) is a struct.
+inline size_t GetTypeSizeInline(reflection::BaseType base_type, int type_index,
+                                const reflection::Schema &schema) {
+  if (base_type == reflection::Obj &&
+      schema.objects()->Get(type_index)->is_struct()) {
+    return schema.objects()->Get(type_index)->bytesize();
+  } else {
+    return GetTypeSize(base_type);
+  }
+}
+
+// Get the root, regardless of what type it is.
+inline Table *GetAnyRoot(uint8_t *flatbuf) {
+  return GetMutableRoot<Table>(flatbuf);
+}
+inline const Table *GetAnyRoot(const uint8_t *flatbuf) {
+  return GetRoot<Table>(flatbuf);
+}
+
+// Get a field's default, if you know it's an integer, and its exact type.
+template<typename T> T GetFieldDefaultI(const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(sizeof(T) == GetTypeSize(field.type()->base_type()));
+  return static_cast<T>(field.default_integer());
+}
+
+// Get a field's default, if you know it's floating point and its exact type.
+template<typename T> T GetFieldDefaultF(const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(sizeof(T) == GetTypeSize(field.type()->base_type()));
+  return static_cast<T>(field.default_real());
+}
+
+// Get a field, if you know it's an integer, and its exact type.
+template<typename T>
+T GetFieldI(const Table &table, const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(sizeof(T) == GetTypeSize(field.type()->base_type()));
+  return table.GetField<T>(field.offset(),
+                           static_cast<T>(field.default_integer()));
+}
+
+// Get a field, if you know it's floating point and its exact type.
+template<typename T>
+T GetFieldF(const Table &table, const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(sizeof(T) == GetTypeSize(field.type()->base_type()));
+  return table.GetField<T>(field.offset(),
+                           static_cast<T>(field.default_real()));
+}
+
+// Get a field, if you know it's a string.
+inline const String *GetFieldS(const Table &table,
+                               const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(field.type()->base_type() == reflection::String);
+  return table.GetPointer<const String *>(field.offset());
+}
+
+// Get a field, if you know it's a vector.
+template<typename T>
+Vector<T> *GetFieldV(const Table &table, const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(field.type()->base_type() == reflection::Vector &&
+                     sizeof(T) == GetTypeSize(field.type()->element()));
+  return table.GetPointer<Vector<T> *>(field.offset());
+}
+
+// Get a field, if you know it's a vector, generically.
+// To actually access elements, use the return value together with
+// field.type()->element() in any of GetAnyVectorElemI below etc.
+inline VectorOfAny *GetFieldAnyV(const Table &table,
+                                 const reflection::Field &field) {
+  return table.GetPointer<VectorOfAny *>(field.offset());
+}
+
+// Get a field, if you know it's a table.
+inline Table *GetFieldT(const Table &table, const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(field.type()->base_type() == reflection::Obj ||
+                     field.type()->base_type() == reflection::Union);
+  return table.GetPointer<Table *>(field.offset());
+}
+
+// Get a field, if you know it's a struct.
+inline const Struct *GetFieldStruct(const Table &table,
+                                    const reflection::Field &field) {
+  // TODO: This does NOT check if the field is a table or struct, but we'd need
+  // access to the schema to check the is_struct flag.
+  FLATBUFFERS_ASSERT(field.type()->base_type() == reflection::Obj);
+  return table.GetStruct<const Struct *>(field.offset());
+}
+
+// Get a structure's field, if you know it's a struct.
+inline const Struct *GetFieldStruct(const Struct &structure,
+                                    const reflection::Field &field) {
+  FLATBUFFERS_ASSERT(field.type()->base_type() == reflection::Obj);
+  return structure.GetStruct<const Struct *>(field.offset());
+}
+
+// Raw helper functions used below: get any value in memory as a 64bit int, a
+// double or a string.
+// All scalars get static_cast to an int64_t, strings use strtoull, every other
+// data type returns 0.
+int64_t GetAnyValueI(reflection::BaseType type, const uint8_t *data);
+// All scalars static cast to double, strings use strtod, every other data
+// type is 0.0.
+double GetAnyValueF(reflection::BaseType type, const uint8_t *data);
+// All scalars converted using stringstream, strings as-is, and all other
+// data types provide some level of debug-pretty-printing.
+std::string GetAnyValueS(reflection::BaseType type, const uint8_t *data,
+                         const reflection::Schema *schema, int type_index);
+
+// Get any table field as a 64bit int, regardless of what type it is.
+inline int64_t GetAnyFieldI(const Table &table,
+                            const reflection::Field &field) {
+  auto field_ptr = table.GetAddressOf(field.offset());
+  return field_ptr ? GetAnyValueI(field.type()->base_type(), field_ptr)
+                   : field.default_integer();
+}
+
+// Get any table field as a double, regardless of what type it is.
+inline double GetAnyFieldF(const Table &table, const reflection::Field &field) {
+  auto field_ptr = table.GetAddressOf(field.offset());
+  return field_ptr ? GetAnyValueF(field.type()->base_type(), field_ptr)
+                   : field.default_real();
+}
+
+// Get any table field as a string, regardless of what type it is.
+// You may pass nullptr for the schema if you don't care to have fields that
+// are of table type pretty-printed.
+inline std::string GetAnyFieldS(const Table &table,
+                                const reflection::Field &field,
+                                const reflection::Schema *schema) {
+  auto field_ptr = table.GetAddressOf(field.offset());
+  return field_ptr ? GetAnyValueS(field.type()->base_type(), field_ptr, schema,
+                                  field.type()->index())
+                   : "";
+}
+
+// Get any struct field as a 64bit int, regardless of what type it is.
+inline int64_t GetAnyFieldI(const Struct &st, const reflection::Field &field) {
+  return GetAnyValueI(field.type()->base_type(),
+                      st.GetAddressOf(field.offset()));
+}
+
+// Get any struct field as a double, regardless of what type it is.
+inline double GetAnyFieldF(const Struct &st, const reflection::Field &field) {
+  return GetAnyValueF(field.type()->base_type(),
+                      st.GetAddressOf(field.offset()));
+}
+
+// Get any struct field as a string, regardless of what type it is.
+inline std::string GetAnyFieldS(const Struct &st,
+                                const reflection::Field &field) {
+  return GetAnyValueS(field.type()->base_type(),
+                      st.GetAddressOf(field.offset()), nullptr, -1);
+}
+
+// Get any vector element as a 64bit int, regardless of what type it is.
+inline int64_t GetAnyVectorElemI(const VectorOfAny *vec,
+                                 reflection::BaseType elem_type, size_t i) {
+  return GetAnyValueI(elem_type, vec->Data() + GetTypeSize(elem_type) * i);
+}
+
+// Get any vector element as a double, regardless of what type it is.
+inline double GetAnyVectorElemF(const VectorOfAny *vec,
+                                reflection::BaseType elem_type, size_t i) {
+  return GetAnyValueF(elem_type, vec->Data() + GetTypeSize(elem_type) * i);
+}
+
+// Get any vector element as a string, regardless of what type it is.
+inline std::string GetAnyVectorElemS(const VectorOfAny *vec,
+                                     reflection::BaseType elem_type, size_t i) {
+  return GetAnyValueS(elem_type, vec->Data() + GetTypeSize(elem_type) * i,
+                      nullptr, -1);
+}
+
+// Get a vector element that's a table/string/vector from a generic vector.
+// Pass Table/String/VectorOfAny as template parameter.
+// Warning: does no typechecking.
+template<typename T>
+T *GetAnyVectorElemPointer(const VectorOfAny *vec, size_t i) {
+  auto elem_ptr = vec->Data() + sizeof(uoffset_t) * i;
+  return reinterpret_cast<T *>(elem_ptr + ReadScalar<uoffset_t>(elem_ptr));
+}
+
+// Get the inline-address of a vector element. Useful for Structs (pass Struct
+// as template arg), or being able to address a range of scalars in-line.
+// Get elem_size from GetTypeSizeInline().
+// Note: little-endian data on all platforms, use EndianScalar() instead of
+// raw pointer access with scalars).
+template<typename T>
+T *GetAnyVectorElemAddressOf(const VectorOfAny *vec, size_t i,
+                             size_t elem_size) {
+  return reinterpret_cast<T *>(vec->Data() + elem_size * i);
+}
+
+// Similarly, for elements of tables.
+template<typename T>
+T *GetAnyFieldAddressOf(const Table &table, const reflection::Field &field) {
+  return reinterpret_cast<T *>(table.GetAddressOf(field.offset()));
+}
+
+// Similarly, for elements of structs.
+template<typename T>
+T *GetAnyFieldAddressOf(const Struct &st, const reflection::Field &field) {
+  return reinterpret_cast<T *>(st.GetAddressOf(field.offset()));
+}
+
+// ------------------------- SETTERS -------------------------
+
+// Set any scalar field, if you know its exact type.
+template<typename T>
+bool SetField(Table *table, const reflection::Field &field, T val) {
+  reflection::BaseType type = field.type()->base_type();
+  if (!IsScalar(type)) { return false; }
+  FLATBUFFERS_ASSERT(sizeof(T) == GetTypeSize(type));
+  T def;
+  if (IsInteger(type)) {
+    def = GetFieldDefaultI<T>(field);
+  } else {
+    FLATBUFFERS_ASSERT(IsFloat(type));
+    def = GetFieldDefaultF<T>(field);
+  }
+  return table->SetField(field.offset(), val, def);
+}
+
+// Raw helper functions used below: set any value in memory as a 64bit int, a
+// double or a string.
+// These work for all scalar values, but do nothing for other data types.
+// To set a string, see SetString below.
+void SetAnyValueI(reflection::BaseType type, uint8_t *data, int64_t val);
+void SetAnyValueF(reflection::BaseType type, uint8_t *data, double val);
+void SetAnyValueS(reflection::BaseType type, uint8_t *data, const char *val);
+
+// Set any table field as a 64bit int, regardless of type what it is.
+inline bool SetAnyFieldI(Table *table, const reflection::Field &field,
+                         int64_t val) {
+  auto field_ptr = table->GetAddressOf(field.offset());
+  if (!field_ptr) return val == GetFieldDefaultI<int64_t>(field);
+  SetAnyValueI(field.type()->base_type(), field_ptr, val);
+  return true;
+}
+
+// Set any table field as a double, regardless of what type it is.
+inline bool SetAnyFieldF(Table *table, const reflection::Field &field,
+                         double val) {
+  auto field_ptr = table->GetAddressOf(field.offset());
+  if (!field_ptr) return val == GetFieldDefaultF<double>(field);
+  SetAnyValueF(field.type()->base_type(), field_ptr, val);
+  return true;
+}
+
+// Set any table field as a string, regardless of what type it is.
+inline bool SetAnyFieldS(Table *table, const reflection::Field &field,
+                         const char *val) {
+  auto field_ptr = table->GetAddressOf(field.offset());
+  if (!field_ptr) return false;
+  SetAnyValueS(field.type()->base_type(), field_ptr, val);
+  return true;
+}
+
+// Set any struct field as a 64bit int, regardless of type what it is.
+inline void SetAnyFieldI(Struct *st, const reflection::Field &field,
+                         int64_t val) {
+  SetAnyValueI(field.type()->base_type(), st->GetAddressOf(field.offset()),
+               val);
+}
+
+// Set any struct field as a double, regardless of type what it is.
+inline void SetAnyFieldF(Struct *st, const reflection::Field &field,
+                         double val) {
+  SetAnyValueF(field.type()->base_type(), st->GetAddressOf(field.offset()),
+               val);
+}
+
+// Set any struct field as a string, regardless of type what it is.
+inline void SetAnyFieldS(Struct *st, const reflection::Field &field,
+                         const char *val) {
+  SetAnyValueS(field.type()->base_type(), st->GetAddressOf(field.offset()),
+               val);
+}
+
+// Set any vector element as a 64bit int, regardless of type what it is.
+inline void SetAnyVectorElemI(VectorOfAny *vec, reflection::BaseType elem_type,
+                              size_t i, int64_t val) {
+  SetAnyValueI(elem_type, vec->Data() + GetTypeSize(elem_type) * i, val);
+}
+
+// Set any vector element as a double, regardless of type what it is.
+inline void SetAnyVectorElemF(VectorOfAny *vec, reflection::BaseType elem_type,
+                              size_t i, double val) {
+  SetAnyValueF(elem_type, vec->Data() + GetTypeSize(elem_type) * i, val);
+}
+
+// Set any vector element as a string, regardless of type what it is.
+inline void SetAnyVectorElemS(VectorOfAny *vec, reflection::BaseType elem_type,
+                              size_t i, const char *val) {
+  SetAnyValueS(elem_type, vec->Data() + GetTypeSize(elem_type) * i, val);
+}
+
+// ------------------------- RESIZING SETTERS -------------------------
+
+// "smart" pointer for use with resizing vectors: turns a pointer inside
+// a vector into a relative offset, such that it is not affected by resizes.
+template<typename T, typename U> class pointer_inside_vector {
+ public:
+  pointer_inside_vector(T *ptr, std::vector<U> &vec)
+      : offset_(reinterpret_cast<uint8_t *>(ptr) -
+                reinterpret_cast<uint8_t *>(flatbuffers::vector_data(vec))),
+        vec_(vec) {}
+
+  T *operator*() const {
+    return reinterpret_cast<T *>(
+        reinterpret_cast<uint8_t *>(flatbuffers::vector_data(vec_)) + offset_);
+  }
+  T *operator->() const { return operator*(); }
+
+ private:
+  size_t offset_;
+  std::vector<U> &vec_;
+};
+
+// Helper to create the above easily without specifying template args.
+template<typename T, typename U>
+pointer_inside_vector<T, U> piv(T *ptr, std::vector<U> &vec) {
+  return pointer_inside_vector<T, U>(ptr, vec);
+}
+
+inline const char *UnionTypeFieldSuffix() { return "_type"; }
+
+// Helper to figure out the actual table type a union refers to.
+inline const reflection::Object &GetUnionType(
+    const reflection::Schema &schema, const reflection::Object &parent,
+    const reflection::Field &unionfield, const Table &table) {
+  auto enumdef = schema.enums()->Get(unionfield.type()->index());
+  // TODO: this is clumsy and slow, but no other way to find it?
+  auto type_field = parent.fields()->LookupByKey(
+      (unionfield.name()->str() + UnionTypeFieldSuffix()).c_str());
+  FLATBUFFERS_ASSERT(type_field);
+  auto union_type = GetFieldI<uint8_t>(table, *type_field);
+  auto enumval = enumdef->values()->LookupByKey(union_type);
+  return *schema.objects()->Get(enumval->union_type()->index());
+}
+
+// Changes the contents of a string inside a FlatBuffer. FlatBuffer must
+// live inside a std::vector so we can resize the buffer if needed.
+// "str" must live inside "flatbuf" and may be invalidated after this call.
+// If your FlatBuffer's root table is not the schema's root table, you should
+// pass in your root_table type as well.
+void SetString(const reflection::Schema &schema, const std::string &val,
+               const String *str, std::vector<uint8_t> *flatbuf,
+               const reflection::Object *root_table = nullptr);
+
+// Resizes a flatbuffers::Vector inside a FlatBuffer. FlatBuffer must
+// live inside a std::vector so we can resize the buffer if needed.
+// "vec" must live inside "flatbuf" and may be invalidated after this call.
+// If your FlatBuffer's root table is not the schema's root table, you should
+// pass in your root_table type as well.
+uint8_t *ResizeAnyVector(const reflection::Schema &schema, uoffset_t newsize,
+                         const VectorOfAny *vec, uoffset_t num_elems,
+                         uoffset_t elem_size, std::vector<uint8_t> *flatbuf,
+                         const reflection::Object *root_table = nullptr);
+
+template<typename T>
+void ResizeVector(const reflection::Schema &schema, uoffset_t newsize, T val,
+                  const Vector<T> *vec, std::vector<uint8_t> *flatbuf,
+                  const reflection::Object *root_table = nullptr) {
+  auto delta_elem = static_cast<int>(newsize) - static_cast<int>(vec->size());
+  auto newelems = ResizeAnyVector(
+      schema, newsize, reinterpret_cast<const VectorOfAny *>(vec), vec->size(),
+      static_cast<uoffset_t>(sizeof(T)), flatbuf, root_table);
+  // Set new elements to "val".
+  for (int i = 0; i < delta_elem; i++) {
+    auto loc = newelems + i * sizeof(T);
+    auto is_scalar = flatbuffers::is_scalar<T>::value;
+    if (is_scalar) {
+      WriteScalar(loc, val);
+    } else {  // struct
+      *reinterpret_cast<T *>(loc) = val;
+    }
+  }
+}
+
+// Adds any new data (in the form of a new FlatBuffer) to an existing
+// FlatBuffer. This can be used when any of the above methods are not
+// sufficient, in particular for adding new tables and new fields.
+// This is potentially slightly less efficient than a FlatBuffer constructed
+// in one piece, since the new FlatBuffer doesn't share any vtables with the
+// existing one.
+// The return value can now be set using Vector::MutateOffset or SetFieldT
+// below.
+const uint8_t *AddFlatBuffer(std::vector<uint8_t> &flatbuf,
+                             const uint8_t *newbuf, size_t newlen);
+
+inline bool SetFieldT(Table *table, const reflection::Field &field,
+                      const uint8_t *val) {
+  FLATBUFFERS_ASSERT(sizeof(uoffset_t) ==
+                     GetTypeSize(field.type()->base_type()));
+  return table->SetPointer(field.offset(), val);
+}
+
+// ------------------------- COPYING -------------------------
+
+// Generic copying of tables from a FlatBuffer into a FlatBuffer builder.
+// Can be used to do any kind of merging/selecting you may want to do out
+// of existing buffers. Also useful to reconstruct a whole buffer if the
+// above resizing functionality has introduced garbage in a buffer you want
+// to remove.
+// Note: this does not deal with DAGs correctly. If the table passed forms a
+// DAG, the copy will be a tree instead (with duplicates). Strings can be
+// shared however, by passing true for use_string_pooling.
+
+Offset<const Table *> CopyTable(FlatBufferBuilder &fbb,
+                                const reflection::Schema &schema,
+                                const reflection::Object &objectdef,
+                                const Table &table,
+                                bool use_string_pooling = false);
+
+// Verifies the provided flatbuffer using reflection.
+// root should point to the root type for this flatbuffer.
+// buf should point to the start of flatbuffer data.
+// length specifies the size of the flatbuffer data.
+bool Verify(const reflection::Schema &schema, const reflection::Object &root,
+            const uint8_t *buf, size_t length, uoffset_t max_depth = 64,
+            uoffset_t max_tables = 1000000);
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_REFLECTION_H_

Libs/flatbuffers/registry.h

@@ -0,0 +1,127 @@
+/*
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_REGISTRY_H_
+#define FLATBUFFERS_REGISTRY_H_
+
+#include "flatbuffers/idl.h"
+
+namespace flatbuffers {
+
+// Convenience class to easily parse or generate text for arbitrary FlatBuffers.
+// Simply pre-populate it with all schema filenames that may be in use, and
+// This class will look them up using the file_identifier declared in the
+// schema.
+class Registry {
+ public:
+  // Call this for all schemas that may be in use. The identifier has
+  // a function in the generated code, e.g. MonsterIdentifier().
+  void Register(const char *file_identifier, const char *schema_path) {
+    Schema schema;
+    schema.path_ = schema_path;
+    schemas_[file_identifier] = schema;
+  }
+
+  // Generate text from an arbitrary FlatBuffer by looking up its
+  // file_identifier in the registry.
+  bool FlatBufferToText(const uint8_t *flatbuf, size_t len, std::string *dest) {
+    // Get the identifier out of the buffer.
+    // If the buffer is truncated, exit.
+    if (len < sizeof(uoffset_t) + FlatBufferBuilder::kFileIdentifierLength) {
+      lasterror_ = "buffer truncated";
+      return false;
+    }
+    std::string ident(
+        reinterpret_cast<const char *>(flatbuf) + sizeof(uoffset_t),
+        FlatBufferBuilder::kFileIdentifierLength);
+    // Load and parse the schema.
+    Parser parser;
+    if (!LoadSchema(ident, &parser)) return false;
+    // Now we're ready to generate text.
+    if (!GenerateText(parser, flatbuf, dest)) {
+      lasterror_ = "unable to generate text for FlatBuffer binary";
+      return false;
+    }
+    return true;
+  }
+
+  // Converts a binary buffer to text using one of the schemas in the registry,
+  // use the file_identifier to indicate which.
+  // If DetachedBuffer::data() is null then parsing failed.
+  DetachedBuffer TextToFlatBuffer(const char *text,
+                                  const char *file_identifier) {
+    // Load and parse the schema.
+    Parser parser;
+    if (!LoadSchema(file_identifier, &parser)) return DetachedBuffer();
+    // Parse the text.
+    if (!parser.Parse(text)) {
+      lasterror_ = parser.error_;
+      return DetachedBuffer();
+    }
+    // We have a valid FlatBuffer. Detach it from the builder and return.
+    return parser.builder_.Release();
+  }
+
+  // Modify any parsing / output options used by the other functions.
+  void SetOptions(const IDLOptions &opts) { opts_ = opts; }
+
+  // If schemas used contain include statements, call this function for every
+  // directory the parser should search them for.
+  void AddIncludeDirectory(const char *path) { include_paths_.push_back(path); }
+
+  // Returns a human readable error if any of the above functions fail.
+  const std::string &GetLastError() { return lasterror_; }
+
+ private:
+  bool LoadSchema(const std::string &ident, Parser *parser) {
+    // Find the schema, if not, exit.
+    auto it = schemas_.find(ident);
+    if (it == schemas_.end()) {
+      // Don't attach the identifier, since it may not be human readable.
+      lasterror_ = "identifier for this buffer not in the registry";
+      return false;
+    }
+    auto &schema = it->second;
+    // Load the schema from disk. If not, exit.
+    std::string schematext;
+    if (!LoadFile(schema.path_.c_str(), false, &schematext)) {
+      lasterror_ = "could not load schema: " + schema.path_;
+      return false;
+    }
+    // Parse schema.
+    parser->opts = opts_;
+    if (!parser->Parse(schematext.c_str(), vector_data(include_paths_),
+                       schema.path_.c_str())) {
+      lasterror_ = parser->error_;
+      return false;
+    }
+    return true;
+  }
+
+  struct Schema {
+    std::string path_;
+    // TODO(wvo) optionally cache schema file or parsed schema here.
+  };
+
+  std::string lasterror_;
+  IDLOptions opts_;
+  std::vector<const char *> include_paths_;
+  std::map<std::string, Schema> schemas_;
+};
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_REGISTRY_H_

Libs/flatbuffers/stl_emulation.h

@@ -0,0 +1,715 @@
+/*
+ * Copyright 2017 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_STL_EMULATION_H_
+#define FLATBUFFERS_STL_EMULATION_H_
+
+// clang-format off
+#include "flatbuffers/base.h"
+
+#include <string>
+#include <type_traits>
+#include <vector>
+#include <memory>
+#include <limits>
+
+#if defined(_STLPORT_VERSION) && !defined(FLATBUFFERS_CPP98_STL)
+  #define FLATBUFFERS_CPP98_STL
+#endif  // defined(_STLPORT_VERSION) && !defined(FLATBUFFERS_CPP98_STL)
+
+#if defined(FLATBUFFERS_CPP98_STL)
+  #include <cctype>
+#endif  // defined(FLATBUFFERS_CPP98_STL)
+
+// Detect C++17 compatible compiler.
+// __cplusplus >= 201703L - a compiler has support of 'static inline' variables.
+#if defined(FLATBUFFERS_USE_STD_OPTIONAL) \
+    || (defined(__cplusplus) && __cplusplus >= 201703L) \
+    || (defined(_MSVC_LANG) &&  (_MSVC_LANG >= 201703L))
+  #include <optional>
+  #ifndef FLATBUFFERS_USE_STD_OPTIONAL
+    #define FLATBUFFERS_USE_STD_OPTIONAL
+  #endif
+#endif // defined(FLATBUFFERS_USE_STD_OPTIONAL) ...
+
+// The __cpp_lib_span is the predefined feature macro.
+#if defined(FLATBUFFERS_USE_STD_SPAN)
+    #include <span>
+#elif defined(__cpp_lib_span) && defined(__has_include)
+  #if __has_include(<span>)
+    #include <span>
+    #define FLATBUFFERS_USE_STD_SPAN
+  #endif
+#else
+  // Disable non-trivial ctors if FLATBUFFERS_SPAN_MINIMAL defined.
+  #if !defined(FLATBUFFERS_TEMPLATES_ALIASES) || defined(FLATBUFFERS_CPP98_STL)
+    #define FLATBUFFERS_SPAN_MINIMAL
+  #else
+    // Enable implicit construction of a span<T,N> from a std::array<T,N>.
+    #include <array>
+  #endif
+#endif // defined(FLATBUFFERS_USE_STD_SPAN)
+
+// This header provides backwards compatibility for C++98 STLs like stlport.
+namespace flatbuffers {
+
+// Retrieve ::back() from a string in a way that is compatible with pre C++11
+// STLs (e.g stlport).
+inline char& string_back(std::string &value) {
+  return value[value.length() - 1];
+}
+
+inline char string_back(const std::string &value) {
+  return value[value.length() - 1];
+}
+
+// Helper method that retrieves ::data() from a vector in a way that is
+// compatible with pre C++11 STLs (e.g stlport).
+template <typename T> inline T *vector_data(std::vector<T> &vector) {
+  // In some debug environments, operator[] does bounds checking, so &vector[0]
+  // can't be used.
+  return vector.empty() ? nullptr : &vector[0];
+}
+
+template <typename T> inline const T *vector_data(
+    const std::vector<T> &vector) {
+  return vector.empty() ? nullptr : &vector[0];
+}
+
+template <typename T, typename V>
+inline void vector_emplace_back(std::vector<T> *vector, V &&data) {
+  #if defined(FLATBUFFERS_CPP98_STL)
+    vector->push_back(data);
+  #else
+    vector->emplace_back(std::forward<V>(data));
+  #endif  // defined(FLATBUFFERS_CPP98_STL)
+}
+
+#ifndef FLATBUFFERS_CPP98_STL
+  #if defined(FLATBUFFERS_TEMPLATES_ALIASES)
+    template <typename T>
+    using numeric_limits = std::numeric_limits<T>;
+  #else
+    template <typename T> class numeric_limits :
+      public std::numeric_limits<T> {};
+  #endif  // defined(FLATBUFFERS_TEMPLATES_ALIASES)
+#else
+  template <typename T> class numeric_limits :
+      public std::numeric_limits<T> {
+    public:
+      // Android NDK fix.
+      static T lowest() {
+        return std::numeric_limits<T>::min();
+      }
+  };
+
+  template <> class numeric_limits<float> :
+      public std::numeric_limits<float> {
+    public:
+      static float lowest() { return -FLT_MAX; }
+  };
+
+  template <> class numeric_limits<double> :
+      public std::numeric_limits<double> {
+    public:
+      static double lowest() { return -DBL_MAX; }
+  };
+
+  template <> class numeric_limits<unsigned long long> {
+   public:
+    static unsigned long long min() { return 0ULL; }
+    static unsigned long long max() { return ~0ULL; }
+    static unsigned long long lowest() {
+      return numeric_limits<unsigned long long>::min();
+    }
+  };
+
+  template <> class numeric_limits<long long> {
+   public:
+    static long long min() {
+      return static_cast<long long>(1ULL << ((sizeof(long long) << 3) - 1));
+    }
+    static long long max() {
+      return static_cast<long long>(
+          (1ULL << ((sizeof(long long) << 3) - 1)) - 1);
+    }
+    static long long lowest() {
+      return numeric_limits<long long>::min();
+    }
+  };
+#endif  // FLATBUFFERS_CPP98_STL
+
+#if defined(FLATBUFFERS_TEMPLATES_ALIASES)
+  #ifndef FLATBUFFERS_CPP98_STL
+    template <typename T> using is_scalar = std::is_scalar<T>;
+    template <typename T, typename U> using is_same = std::is_same<T,U>;
+    template <typename T> using is_floating_point = std::is_floating_point<T>;
+    template <typename T> using is_unsigned = std::is_unsigned<T>;
+    template <typename T> using is_enum = std::is_enum<T>;
+    template <typename T> using make_unsigned = std::make_unsigned<T>;
+    template<bool B, class T, class F>
+    using conditional = std::conditional<B, T, F>;
+    template<class T, T v>
+    using integral_constant = std::integral_constant<T, v>;
+    template <bool B>
+    using bool_constant = integral_constant<bool, B>;
+    using true_type  = std::true_type;
+    using false_type = std::false_type;
+  #else
+    // Map C++ TR1 templates defined by stlport.
+    template <typename T> using is_scalar = std::tr1::is_scalar<T>;
+    template <typename T, typename U> using is_same = std::tr1::is_same<T,U>;
+    template <typename T> using is_floating_point =
+        std::tr1::is_floating_point<T>;
+    template <typename T> using is_unsigned = std::tr1::is_unsigned<T>;
+    template <typename T> using is_enum = std::tr1::is_enum<T>;
+    // Android NDK doesn't have std::make_unsigned or std::tr1::make_unsigned.
+    template<typename T> struct make_unsigned {
+      static_assert(is_unsigned<T>::value, "Specialization not implemented!");
+      using type = T;
+    };
+    template<> struct make_unsigned<char> { using type = unsigned char; };
+    template<> struct make_unsigned<short> { using type = unsigned short; };
+    template<> struct make_unsigned<int> { using type = unsigned int; };
+    template<> struct make_unsigned<long> { using type = unsigned long; };
+    template<>
+    struct make_unsigned<long long> { using type = unsigned long long; };
+    template<bool B, class T, class F>
+    using conditional = std::tr1::conditional<B, T, F>;
+    template<class T, T v>
+    using integral_constant = std::tr1::integral_constant<T, v>;
+    template <bool B>
+    using bool_constant = integral_constant<bool, B>;
+    using true_type  = bool_constant<true>;
+    using false_type = bool_constant<false>;
+  #endif  // !FLATBUFFERS_CPP98_STL
+#else
+  // MSVC 2010 doesn't support C++11 aliases.
+  template <typename T> struct is_scalar : public std::is_scalar<T> {};
+  template <typename T, typename U> struct is_same : public std::is_same<T,U> {};
+  template <typename T> struct is_floating_point :
+        public std::is_floating_point<T> {};
+  template <typename T> struct is_unsigned : public std::is_unsigned<T> {};
+  template <typename T> struct is_enum : public std::is_enum<T> {};
+  template <typename T> struct make_unsigned : public std::make_unsigned<T> {};
+  template<bool B, class T, class F>
+  struct conditional : public std::conditional<B, T, F> {};
+  template<class T, T v>
+  struct integral_constant : public std::integral_constant<T, v> {};
+  template <bool B>
+  struct bool_constant : public integral_constant<bool, B> {};
+  typedef bool_constant<true>  true_type;
+  typedef bool_constant<false> false_type;
+#endif  // defined(FLATBUFFERS_TEMPLATES_ALIASES)
+
+#ifndef FLATBUFFERS_CPP98_STL
+  #if defined(FLATBUFFERS_TEMPLATES_ALIASES)
+    template <class T> using unique_ptr = std::unique_ptr<T>;
+  #else
+    // MSVC 2010 doesn't support C++11 aliases.
+    // We're manually "aliasing" the class here as we want to bring unique_ptr
+    // into the flatbuffers namespace.  We have unique_ptr in the flatbuffers
+    // namespace we have a completely independent implementation (see below)
+    // for C++98 STL implementations.
+    template <class T> class unique_ptr : public std::unique_ptr<T> {
+     public:
+      unique_ptr() {}
+      explicit unique_ptr(T* p) : std::unique_ptr<T>(p) {}
+      unique_ptr(std::unique_ptr<T>&& u) { *this = std::move(u); }
+      unique_ptr(unique_ptr&& u) { *this = std::move(u); }
+      unique_ptr& operator=(std::unique_ptr<T>&& u) {
+        std::unique_ptr<T>::reset(u.release());
+        return *this;
+      }
+      unique_ptr& operator=(unique_ptr&& u) {
+        std::unique_ptr<T>::reset(u.release());
+        return *this;
+      }
+      unique_ptr& operator=(T* p) {
+        return std::unique_ptr<T>::operator=(p);
+      }
+    };
+  #endif  // defined(FLATBUFFERS_TEMPLATES_ALIASES)
+#else
+  // Very limited implementation of unique_ptr.
+  // This is provided simply to allow the C++ code generated from the default
+  // settings to function in C++98 environments with no modifications.
+  template <class T> class unique_ptr {
+   public:
+    typedef T element_type;
+
+    unique_ptr() : ptr_(nullptr) {}
+    explicit unique_ptr(T* p) : ptr_(p) {}
+    unique_ptr(unique_ptr&& u) : ptr_(nullptr) { reset(u.release()); }
+    unique_ptr(const unique_ptr& u) : ptr_(nullptr) {
+      reset(const_cast<unique_ptr*>(&u)->release());
+    }
+    ~unique_ptr() { reset(); }
+
+    unique_ptr& operator=(const unique_ptr& u) {
+      reset(const_cast<unique_ptr*>(&u)->release());
+      return *this;
+    }
+
+    unique_ptr& operator=(unique_ptr&& u) {
+      reset(u.release());
+      return *this;
+    }
+
+    unique_ptr& operator=(T* p) {
+      reset(p);
+      return *this;
+    }
+
+    const T& operator*() const { return *ptr_; }
+    T* operator->() const { return ptr_; }
+    T* get() const noexcept { return ptr_; }
+    explicit operator bool() const { return ptr_ != nullptr; }
+
+    // modifiers
+    T* release() {
+      T* value = ptr_;
+      ptr_ = nullptr;
+      return value;
+    }
+
+    void reset(T* p = nullptr) {
+      T* value = ptr_;
+      ptr_ = p;
+      if (value) delete value;
+    }
+
+    void swap(unique_ptr& u) {
+      T* temp_ptr = ptr_;
+      ptr_ = u.ptr_;
+      u.ptr_ = temp_ptr;
+    }
+
+   private:
+    T* ptr_;
+  };
+
+  template <class T> bool operator==(const unique_ptr<T>& x,
+                                     const unique_ptr<T>& y) {
+    return x.get() == y.get();
+  }
+
+  template <class T, class D> bool operator==(const unique_ptr<T>& x,
+                                              const D* y) {
+    return static_cast<D*>(x.get()) == y;
+  }
+
+  template <class T> bool operator==(const unique_ptr<T>& x, intptr_t y) {
+    return reinterpret_cast<intptr_t>(x.get()) == y;
+  }
+
+  template <class T> bool operator!=(const unique_ptr<T>& x, decltype(nullptr)) {
+    return !!x;
+  }
+
+  template <class T> bool operator!=(decltype(nullptr), const unique_ptr<T>& x) {
+    return !!x;
+  }
+
+  template <class T> bool operator==(const unique_ptr<T>& x, decltype(nullptr)) {
+    return !x;
+  }
+
+  template <class T> bool operator==(decltype(nullptr), const unique_ptr<T>& x) {
+    return !x;
+  }
+
+#endif  // !FLATBUFFERS_CPP98_STL
+
+#ifdef FLATBUFFERS_USE_STD_OPTIONAL
+template<class T>
+using Optional = std::optional<T>;
+using nullopt_t = std::nullopt_t;
+inline constexpr nullopt_t nullopt = std::nullopt;
+
+#else
+// Limited implementation of Optional<T> type for a scalar T.
+// This implementation limited by trivial types compatible with
+// std::is_arithmetic<T> or std::is_enum<T> type traits.
+
+// A tag to indicate an empty flatbuffers::optional<T>.
+struct nullopt_t {
+  explicit FLATBUFFERS_CONSTEXPR_CPP11 nullopt_t(int) {}
+};
+
+#if defined(FLATBUFFERS_CONSTEXPR_DEFINED)
+  namespace internal {
+    template <class> struct nullopt_holder {
+      static constexpr nullopt_t instance_ = nullopt_t(0);
+    };
+    template<class Dummy>
+    constexpr nullopt_t nullopt_holder<Dummy>::instance_;
+  }
+  static constexpr const nullopt_t &nullopt = internal::nullopt_holder<void>::instance_;
+
+#else
+  namespace internal {
+    template <class> struct nullopt_holder {
+      static const nullopt_t instance_;
+    };
+    template<class Dummy>
+    const nullopt_t nullopt_holder<Dummy>::instance_  = nullopt_t(0);
+  }
+  static const nullopt_t &nullopt = internal::nullopt_holder<void>::instance_;
+
+#endif
+
+template<class T>
+class Optional FLATBUFFERS_FINAL_CLASS {
+  // Non-scalar 'T' would extremely complicated Optional<T>.
+  // Use is_scalar<T> checking because flatbuffers flatbuffers::is_arithmetic<T>
+  // isn't implemented.
+  static_assert(flatbuffers::is_scalar<T>::value, "unexpected type T");
+
+ public:
+  ~Optional() {}
+
+  FLATBUFFERS_CONSTEXPR_CPP11 Optional() FLATBUFFERS_NOEXCEPT
+    : value_(), has_value_(false) {}
+
+  FLATBUFFERS_CONSTEXPR_CPP11 Optional(nullopt_t) FLATBUFFERS_NOEXCEPT
+    : value_(), has_value_(false) {}
+
+  FLATBUFFERS_CONSTEXPR_CPP11 Optional(T val) FLATBUFFERS_NOEXCEPT
+    : value_(val), has_value_(true) {}
+
+  FLATBUFFERS_CONSTEXPR_CPP11 Optional(const Optional &other) FLATBUFFERS_NOEXCEPT
+    : value_(other.value_), has_value_(other.has_value_) {}
+
+  FLATBUFFERS_CONSTEXPR_CPP14 Optional &operator=(const Optional &other) FLATBUFFERS_NOEXCEPT {
+    value_ = other.value_;
+    has_value_ = other.has_value_;
+    return *this;
+  }
+
+  FLATBUFFERS_CONSTEXPR_CPP14 Optional &operator=(nullopt_t) FLATBUFFERS_NOEXCEPT {
+    value_ = T();
+    has_value_ = false;
+    return *this;
+  }
+
+  FLATBUFFERS_CONSTEXPR_CPP14 Optional &operator=(T val) FLATBUFFERS_NOEXCEPT {
+    value_ = val;
+    has_value_ = true;
+    return *this;
+  }
+
+  void reset() FLATBUFFERS_NOEXCEPT {
+    *this = nullopt;
+  }
+
+  void swap(Optional &other) FLATBUFFERS_NOEXCEPT {
+    std::swap(value_, other.value_);
+    std::swap(has_value_, other.has_value_);
+  }
+
+  FLATBUFFERS_CONSTEXPR_CPP11 FLATBUFFERS_EXPLICIT_CPP11 operator bool() const FLATBUFFERS_NOEXCEPT {
+    return has_value_;
+  }
+
+  FLATBUFFERS_CONSTEXPR_CPP11 bool has_value() const FLATBUFFERS_NOEXCEPT {
+    return has_value_;
+  }
+
+  FLATBUFFERS_CONSTEXPR_CPP11 const T& operator*() const FLATBUFFERS_NOEXCEPT {
+    return value_;
+  }
+
+  const T& value() const {
+    FLATBUFFERS_ASSERT(has_value());
+    return value_;
+  }
+
+  T value_or(T default_value) const FLATBUFFERS_NOEXCEPT {
+    return has_value() ? value_ : default_value;
+  }
+
+ private:
+  T value_;
+  bool has_value_;
+};
+
+template<class T>
+FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const Optional<T>& opt, nullopt_t) FLATBUFFERS_NOEXCEPT {
+  return !opt;
+}
+template<class T>
+FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(nullopt_t, const Optional<T>& opt) FLATBUFFERS_NOEXCEPT {
+  return !opt;
+}
+
+template<class T, class U>
+FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const Optional<T>& lhs, const U& rhs) FLATBUFFERS_NOEXCEPT {
+  return static_cast<bool>(lhs) && (*lhs == rhs);
+}
+
+template<class T, class U>
+FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const T& lhs, const Optional<U>& rhs) FLATBUFFERS_NOEXCEPT {
+  return static_cast<bool>(rhs) && (lhs == *rhs);
+}
+
+template<class T, class U>
+FLATBUFFERS_CONSTEXPR_CPP11 bool operator==(const Optional<T>& lhs, const Optional<U>& rhs) FLATBUFFERS_NOEXCEPT {
+  return static_cast<bool>(lhs) != static_cast<bool>(rhs)
+              ? false
+              : !static_cast<bool>(lhs) ? false : (*lhs == *rhs);
+}
+#endif // FLATBUFFERS_USE_STD_OPTIONAL
+
+
+// Very limited and naive partial implementation of C++20 std::span<T,Extent>.
+#if defined(FLATBUFFERS_USE_STD_SPAN)
+  inline constexpr std::size_t dynamic_extent = std::dynamic_extent;
+  template<class T, std::size_t Extent = std::dynamic_extent>
+  using span = std::span<T, Extent>;
+
+#else // !defined(FLATBUFFERS_USE_STD_SPAN)
+FLATBUFFERS_CONSTEXPR std::size_t dynamic_extent = static_cast<std::size_t>(-1);
+
+// Exclude this code if MSVC2010 or non-STL Android is active.
+// The non-STL Android doesn't have `std::is_convertible` required for SFINAE.
+#if !defined(FLATBUFFERS_SPAN_MINIMAL)
+namespace internal {
+  // This is SFINAE helper class for checking of a common condition:
+  // > This overload only participates in overload resolution
+  // > Check whether a pointer to an array of U can be converted
+  // > to a pointer to an array of E.
+  // This helper is used for checking of 'U -> const U'.
+  template<class E, std::size_t Extent, class U, std::size_t N>
+  struct is_span_convertable {
+    using type =
+      typename std::conditional<std::is_convertible<U (*)[], E (*)[]>::value
+                                && (Extent == dynamic_extent || N == Extent),
+                                int, void>::type;
+  };
+
+  template<typename T>
+  struct SpanIterator {
+    // TODO: upgrade to std::random_access_iterator_tag.
+    using iterator_category = std::forward_iterator_tag;
+    using difference_type  = std::ptrdiff_t;
+    using value_type = typename std::remove_cv<T>::type;
+    using reference = T&;
+    using pointer   = T*;
+
+    // Convince MSVC compiler that this iterator is trusted (it is verified).
+    #ifdef _MSC_VER
+      using _Unchecked_type = pointer;
+    #endif // _MSC_VER
+
+    SpanIterator(pointer ptr) : ptr_(ptr) {}
+    reference operator*() const { return *ptr_; }
+    pointer operator->() { return ptr_; }
+    SpanIterator& operator++() { ptr_++; return *this; }  
+    SpanIterator  operator++(int) { auto tmp = *this; ++(*this); return tmp; }
+
+    friend bool operator== (const SpanIterator& lhs, const SpanIterator& rhs) { return lhs.ptr_ == rhs.ptr_; }
+    friend bool operator!= (const SpanIterator& lhs, const SpanIterator& rhs) { return lhs.ptr_ != rhs.ptr_; }
+
+   private:
+    pointer ptr_;
+  };
+}  // namespace internal
+#endif  // !defined(FLATBUFFERS_SPAN_MINIMAL)
+
+// T - element type; must be a complete type that is not an abstract
+// class type.
+// Extent - the number of elements in the sequence, or dynamic.
+template<class T, std::size_t Extent = dynamic_extent>
+class span FLATBUFFERS_FINAL_CLASS {
+ public:
+  typedef T element_type;
+  typedef T& reference;
+  typedef const T& const_reference;
+  typedef T* pointer;
+  typedef const T* const_pointer;
+  typedef std::size_t size_type;
+
+  static FLATBUFFERS_CONSTEXPR size_type extent = Extent;
+
+  // Returns the number of elements in the span.
+  FLATBUFFERS_CONSTEXPR_CPP11 size_type size() const FLATBUFFERS_NOEXCEPT {
+    return count_;
+  }
+
+  // Returns the size of the sequence in bytes.
+  FLATBUFFERS_CONSTEXPR_CPP11
+  size_type size_bytes() const FLATBUFFERS_NOEXCEPT {
+    return size() * sizeof(element_type);
+  }
+
+  // Checks if the span is empty.
+  FLATBUFFERS_CONSTEXPR_CPP11 bool empty() const FLATBUFFERS_NOEXCEPT {
+    return size() == 0;
+  }
+
+  // Returns a pointer to the beginning of the sequence.
+  FLATBUFFERS_CONSTEXPR_CPP11 pointer data() const FLATBUFFERS_NOEXCEPT {
+    return data_;
+  }
+
+  #if !defined(FLATBUFFERS_SPAN_MINIMAL)
+    using Iterator = internal::SpanIterator<T>;
+    using ConstIterator = internal::SpanIterator<const T>;
+
+    Iterator begin() const { return Iterator(data()); }
+    Iterator end() const   { return Iterator(data() + size()); }
+
+    ConstIterator cbegin() const { return ConstIterator(data()); }
+    ConstIterator cend() const  { return ConstIterator(data() + size()); }
+  #endif
+
+  // Returns a reference to the idx-th element of the sequence.
+  // The behavior is undefined if the idx is greater than or equal to size().
+  FLATBUFFERS_CONSTEXPR_CPP11 reference operator[](size_type idx) const {
+    return data()[idx];
+  }
+
+  FLATBUFFERS_CONSTEXPR_CPP11 span(const span &other) FLATBUFFERS_NOEXCEPT
+      : data_(other.data_), count_(other.count_) {}
+
+  FLATBUFFERS_CONSTEXPR_CPP14 span &operator=(const span &other)
+      FLATBUFFERS_NOEXCEPT {
+    data_ = other.data_;
+    count_ = other.count_;
+  }
+
+  // Limited implementation of
+  // `template <class It> constexpr std::span(It first, size_type count);`.
+  //
+  // Constructs a span that is a view over the range [first, first + count);
+  // the resulting span has: data() == first and size() == count.
+  // The behavior is undefined if [first, first + count) is not a valid range,
+  // or if (extent != flatbuffers::dynamic_extent && count != extent).
+  FLATBUFFERS_CONSTEXPR_CPP11
+  explicit span(pointer first, size_type count) FLATBUFFERS_NOEXCEPT
+    : data_ (Extent == dynamic_extent ? first : (Extent == count ? first : nullptr)),
+      count_(Extent == dynamic_extent ? count : (Extent == count ? Extent : 0)) {
+      // Make span empty if the count argument is incompatible with span<T,N>.
+  }
+
+  // Exclude this code if MSVC2010 is active. The MSVC2010 isn't C++11
+  // compliant, it doesn't support default template arguments for functions.
+  #if defined(FLATBUFFERS_SPAN_MINIMAL)
+  FLATBUFFERS_CONSTEXPR_CPP11 span() FLATBUFFERS_NOEXCEPT : data_(nullptr),
+                                                            count_(0) {
+    static_assert(extent == 0 || extent == dynamic_extent, "invalid span");
+  }
+
+  #else
+  // Constructs an empty span whose data() == nullptr and size() == 0.
+  // This overload only participates in overload resolution if
+  // extent == 0 || extent == flatbuffers::dynamic_extent.
+  // A dummy template argument N is need dependency for SFINAE.
+  template<std::size_t N = 0,
+    typename internal::is_span_convertable<element_type, Extent, element_type, (N - N)>::type = 0>
+  FLATBUFFERS_CONSTEXPR_CPP11 span() FLATBUFFERS_NOEXCEPT : data_(nullptr),
+                                                            count_(0) {
+    static_assert(extent == 0 || extent == dynamic_extent, "invalid span");
+  }
+
+  // Constructs a span that is a view over the array arr; the resulting span
+  // has size() == N and data() == std::data(arr). These overloads only
+  // participate in overload resolution if
+  // extent == std::dynamic_extent || N == extent is true and
+  // std::remove_pointer_t<decltype(std::data(arr))>(*)[]
+  // is convertible to element_type (*)[].
+  template<std::size_t N,
+    typename internal::is_span_convertable<element_type, Extent, element_type, N>::type = 0>
+  FLATBUFFERS_CONSTEXPR_CPP11 span(element_type (&arr)[N]) FLATBUFFERS_NOEXCEPT
+      : data_(arr), count_(N) {}
+
+  template<class U, std::size_t N,
+    typename internal::is_span_convertable<element_type, Extent, U, N>::type = 0>
+  FLATBUFFERS_CONSTEXPR_CPP11 span(std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT
+     : data_(arr.data()), count_(N) {}
+
+  //template<class U, std::size_t N,
+  //  int = 0>
+  //FLATBUFFERS_CONSTEXPR_CPP11 span(std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT
+  //   : data_(arr.data()), count_(N) {}
+
+  template<class U, std::size_t N,
+    typename internal::is_span_convertable<element_type, Extent, U, N>::type = 0>
+  FLATBUFFERS_CONSTEXPR_CPP11 span(const std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT
+    : data_(arr.data()), count_(N) {}
+
+  // Converting constructor from another span s;
+  // the resulting span has size() == s.size() and data() == s.data().
+  // This overload only participates in overload resolution
+  // if extent == std::dynamic_extent || N == extent is true and U (*)[]
+  // is convertible to element_type (*)[].
+  template<class U, std::size_t N,
+    typename internal::is_span_convertable<element_type, Extent, U, N>::type = 0>
+  FLATBUFFERS_CONSTEXPR_CPP11 span(const flatbuffers::span<U, N> &s) FLATBUFFERS_NOEXCEPT
+      : span(s.data(), s.size()) {
+  }
+
+  #endif  // !defined(FLATBUFFERS_SPAN_MINIMAL)
+
+ private:
+  // This is a naive implementation with 'count_' member even if (Extent != dynamic_extent).
+  pointer const data_;
+  const size_type count_;
+};
+#endif  // defined(FLATBUFFERS_USE_STD_SPAN)
+
+#if !defined(FLATBUFFERS_SPAN_MINIMAL)
+template<class U, std::size_t N>
+FLATBUFFERS_CONSTEXPR_CPP11
+flatbuffers::span<U, N> make_span(U(&arr)[N]) FLATBUFFERS_NOEXCEPT {
+  return span<U, N>(arr);
+}
+
+template<class U, std::size_t N>
+FLATBUFFERS_CONSTEXPR_CPP11
+flatbuffers::span<const U, N> make_span(const U(&arr)[N]) FLATBUFFERS_NOEXCEPT {
+  return span<const U, N>(arr);
+}
+
+template<class U, std::size_t N>
+FLATBUFFERS_CONSTEXPR_CPP11
+flatbuffers::span<U, N> make_span(std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT {
+  return span<U, N>(arr);
+}
+
+template<class U, std::size_t N>
+FLATBUFFERS_CONSTEXPR_CPP11
+flatbuffers::span<const U, N> make_span(const std::array<U, N> &arr) FLATBUFFERS_NOEXCEPT {
+  return span<const U, N>(arr);
+}
+
+template<class U, std::size_t N>
+FLATBUFFERS_CONSTEXPR_CPP11
+flatbuffers::span<U, dynamic_extent> make_span(U *first, std::size_t count) FLATBUFFERS_NOEXCEPT {
+  return span<U, dynamic_extent>(first, count);
+}
+
+template<class U, std::size_t N>
+FLATBUFFERS_CONSTEXPR_CPP11
+flatbuffers::span<const U, dynamic_extent> make_span(const U *first, std::size_t count) FLATBUFFERS_NOEXCEPT {
+  return span<const U, dynamic_extent>(first, count);
+}
+#endif // !defined(FLATBUFFERS_SPAN_MINIMAL)
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_STL_EMULATION_H_

Libs/flatbuffers/util.h

@@ -0,0 +1,703 @@
+/*
+ * Copyright 2014 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef FLATBUFFERS_UTIL_H_
+#define FLATBUFFERS_UTIL_H_
+
+#include <errno.h>
+
+#include "flatbuffers/base.h"
+#include "flatbuffers/stl_emulation.h"
+
+#ifndef FLATBUFFERS_PREFER_PRINTF
+#  include <sstream>
+#else  // FLATBUFFERS_PREFER_PRINTF
+#  include <float.h>
+#  include <stdio.h>
+#endif  // FLATBUFFERS_PREFER_PRINTF
+
+#include <iomanip>
+#include <string>
+
+namespace flatbuffers {
+
+// @locale-independent functions for ASCII characters set.
+
+// Fast checking that character lies in closed range: [a <= x <= b]
+// using one compare (conditional branch) operator.
+inline bool check_ascii_range(char x, char a, char b) {
+  FLATBUFFERS_ASSERT(a <= b);
+  // (Hacker's Delight): `a <= x <= b` <=> `(x-a) <={u} (b-a)`.
+  // The x, a, b will be promoted to int and subtracted without overflow.
+  return static_cast<unsigned int>(x - a) <= static_cast<unsigned int>(b - a);
+}
+
+// Case-insensitive isalpha
+inline bool is_alpha(char c) {
+  // ASCII only: alpha to upper case => reset bit 0x20 (~0x20 = 0xDF).
+  return check_ascii_range(c & 0xDF, 'a' & 0xDF, 'z' & 0xDF);
+}
+
+// Check for uppercase alpha
+inline bool is_alpha_upper(char c) { return check_ascii_range(c, 'A', 'Z'); }
+
+// Check (case-insensitive) that `c` is equal to alpha.
+inline bool is_alpha_char(char c, char alpha) {
+  FLATBUFFERS_ASSERT(is_alpha(alpha));
+  // ASCII only: alpha to upper case => reset bit 0x20 (~0x20 = 0xDF).
+  return ((c & 0xDF) == (alpha & 0xDF));
+}
+
+// https://en.cppreference.com/w/cpp/string/byte/isxdigit
+// isdigit and isxdigit are the only standard narrow character classification
+// functions that are not affected by the currently installed C locale. although
+// some implementations (e.g. Microsoft in 1252 codepage) may classify
+// additional single-byte characters as digits.
+inline bool is_digit(char c) { return check_ascii_range(c, '0', '9'); }
+
+inline bool is_xdigit(char c) {
+  // Replace by look-up table.
+  return is_digit(c) || check_ascii_range(c & 0xDF, 'a' & 0xDF, 'f' & 0xDF);
+}
+
+// Case-insensitive isalnum
+inline bool is_alnum(char c) { return is_alpha(c) || is_digit(c); }
+
+inline char CharToUpper(char c) {
+  return static_cast<char>(::toupper(static_cast<unsigned char>(c)));
+}
+
+inline char CharToLower(char c) {
+  return static_cast<char>(::tolower(static_cast<unsigned char>(c)));
+}
+
+// @end-locale-independent functions for ASCII character set
+
+#ifdef FLATBUFFERS_PREFER_PRINTF
+template<typename T> size_t IntToDigitCount(T t) {
+  size_t digit_count = 0;
+  // Count the sign for negative numbers
+  if (t < 0) digit_count++;
+  // Count a single 0 left of the dot for fractional numbers
+  if (-1 < t && t < 1) digit_count++;
+  // Count digits until fractional part
+  T eps = std::numeric_limits<float>::epsilon();
+  while (t <= (-1 + eps) || (1 - eps) <= t) {
+    t /= 10;
+    digit_count++;
+  }
+  return digit_count;
+}
+
+template<typename T> size_t NumToStringWidth(T t, int precision = 0) {
+  size_t string_width = IntToDigitCount(t);
+  // Count the dot for floating point numbers
+  if (precision) string_width += (precision + 1);
+  return string_width;
+}
+
+template<typename T>
+std::string NumToStringImplWrapper(T t, const char *fmt, int precision = 0) {
+  size_t string_width = NumToStringWidth(t, precision);
+  std::string s(string_width, 0x00);
+  // Allow snprintf to use std::string trailing null to detect buffer overflow
+  snprintf(const_cast<char *>(s.data()), (s.size() + 1), fmt, string_width, t);
+  return s;
+}
+#endif  // FLATBUFFERS_PREFER_PRINTF
+
+// Convert an integer or floating point value to a string.
+// In contrast to std::stringstream, "char" values are
+// converted to a string of digits, and we don't use scientific notation.
+template<typename T> std::string NumToString(T t) {
+  // clang-format off
+
+  #ifndef FLATBUFFERS_PREFER_PRINTF
+    std::stringstream ss;
+    ss << t;
+    return ss.str();
+  #else // FLATBUFFERS_PREFER_PRINTF
+    auto v = static_cast<long long>(t);
+    return NumToStringImplWrapper(v, "%.*lld");
+  #endif // FLATBUFFERS_PREFER_PRINTF
+  // clang-format on
+}
+// Avoid char types used as character data.
+template<> inline std::string NumToString<signed char>(signed char t) {
+  return NumToString(static_cast<int>(t));
+}
+template<> inline std::string NumToString<unsigned char>(unsigned char t) {
+  return NumToString(static_cast<int>(t));
+}
+template<> inline std::string NumToString<char>(char t) {
+  return NumToString(static_cast<int>(t));
+}
+#if defined(FLATBUFFERS_CPP98_STL)
+template<> inline std::string NumToString<long long>(long long t) {
+  char buf[21];  // (log((1 << 63) - 1) / log(10)) + 2
+  snprintf(buf, sizeof(buf), "%lld", t);
+  return std::string(buf);
+}
+
+template<>
+inline std::string NumToString<unsigned long long>(unsigned long long t) {
+  char buf[22];  // (log((1 << 63) - 1) / log(10)) + 1
+  snprintf(buf, sizeof(buf), "%llu", t);
+  return std::string(buf);
+}
+#endif  // defined(FLATBUFFERS_CPP98_STL)
+
+// Special versions for floats/doubles.
+template<typename T> std::string FloatToString(T t, int precision) {
+  // clang-format off
+
+  #ifndef FLATBUFFERS_PREFER_PRINTF
+    // to_string() prints different numbers of digits for floats depending on
+    // platform and isn't available on Android, so we use stringstream
+    std::stringstream ss;
+    // Use std::fixed to suppress scientific notation.
+    ss << std::fixed;
+    // Default precision is 6, we want that to be higher for doubles.
+    ss << std::setprecision(precision);
+    ss << t;
+    auto s = ss.str();
+  #else // FLATBUFFERS_PREFER_PRINTF
+    auto v = static_cast<double>(t);
+    auto s = NumToStringImplWrapper(v, "%0.*f", precision);
+  #endif // FLATBUFFERS_PREFER_PRINTF
+  // clang-format on
+  // Sadly, std::fixed turns "1" into "1.00000", so here we undo that.
+  auto p = s.find_last_not_of('0');
+  if (p != std::string::npos) {
+    // Strip trailing zeroes. If it is a whole number, keep one zero.
+    s.resize(p + (s[p] == '.' ? 2 : 1));
+  }
+  return s;
+}
+
+template<> inline std::string NumToString<double>(double t) {
+  return FloatToString(t, 12);
+}
+template<> inline std::string NumToString<float>(float t) {
+  return FloatToString(t, 6);
+}
+
+// Convert an integer value to a hexadecimal string.
+// The returned string length is always xdigits long, prefixed by 0 digits.
+// For example, IntToStringHex(0x23, 8) returns the string "00000023".
+inline std::string IntToStringHex(int i, int xdigits) {
+  FLATBUFFERS_ASSERT(i >= 0);
+  // clang-format off
+
+  #ifndef FLATBUFFERS_PREFER_PRINTF
+    std::stringstream ss;
+    ss << std::setw(xdigits) << std::setfill('0') << std::hex << std::uppercase
+       << i;
+    return ss.str();
+  #else // FLATBUFFERS_PREFER_PRINTF
+    return NumToStringImplWrapper(i, "%.*X", xdigits);
+  #endif // FLATBUFFERS_PREFER_PRINTF
+  // clang-format on
+}
+
+// clang-format off
+// Use locale independent functions {strtod_l, strtof_l, strtoll_l, strtoull_l}.
+#if defined(FLATBUFFERS_LOCALE_INDEPENDENT) && (FLATBUFFERS_LOCALE_INDEPENDENT > 0)
+  class ClassicLocale {
+    #ifdef _MSC_VER
+      typedef _locale_t locale_type;
+    #else
+      typedef locale_t locale_type;  // POSIX.1-2008 locale_t type
+    #endif
+    ClassicLocale();
+    ~ClassicLocale();
+    locale_type locale_;
+    static ClassicLocale instance_;
+  public:
+    static locale_type Get() { return instance_.locale_; }
+  };
+
+  #ifdef _MSC_VER
+    #define __strtoull_impl(s, pe, b) _strtoui64_l(s, pe, b, ClassicLocale::Get())
+    #define __strtoll_impl(s, pe, b) _strtoi64_l(s, pe, b, ClassicLocale::Get())
+    #define __strtod_impl(s, pe) _strtod_l(s, pe, ClassicLocale::Get())
+    #define __strtof_impl(s, pe) _strtof_l(s, pe, ClassicLocale::Get())
+  #else
+    #define __strtoull_impl(s, pe, b) strtoull_l(s, pe, b, ClassicLocale::Get())
+    #define __strtoll_impl(s, pe, b) strtoll_l(s, pe, b, ClassicLocale::Get())
+    #define __strtod_impl(s, pe) strtod_l(s, pe, ClassicLocale::Get())
+    #define __strtof_impl(s, pe) strtof_l(s, pe, ClassicLocale::Get())
+  #endif
+#else
+  #define __strtod_impl(s, pe) strtod(s, pe)
+  #define __strtof_impl(s, pe) static_cast<float>(strtod(s, pe))
+  #ifdef _MSC_VER
+    #define __strtoull_impl(s, pe, b) _strtoui64(s, pe, b)
+    #define __strtoll_impl(s, pe, b) _strtoi64(s, pe, b)
+  #else
+    #define __strtoull_impl(s, pe, b) strtoull(s, pe, b)
+    #define __strtoll_impl(s, pe, b) strtoll(s, pe, b)
+  #endif
+#endif
+
+inline void strtoval_impl(int64_t *val, const char *str, char **endptr,
+                                 int base) {
+    *val = __strtoll_impl(str, endptr, base);
+}
+
+inline void strtoval_impl(uint64_t *val, const char *str, char **endptr,
+                                 int base) {
+  *val = __strtoull_impl(str, endptr, base);
+}
+
+inline void strtoval_impl(double *val, const char *str, char **endptr) {
+  *val = __strtod_impl(str, endptr);
+}
+
+// UBSAN: double to float is safe if numeric_limits<float>::is_iec559 is true.
+__supress_ubsan__("float-cast-overflow")
+inline void strtoval_impl(float *val, const char *str, char **endptr) {
+  *val = __strtof_impl(str, endptr);
+}
+#undef __strtoull_impl
+#undef __strtoll_impl
+#undef __strtod_impl
+#undef __strtof_impl
+// clang-format on
+
+// Adaptor for strtoull()/strtoll().
+// Flatbuffers accepts numbers with any count of leading zeros (-009 is -9),
+// while strtoll with base=0 interprets first leading zero as octal prefix.
+// In future, it is possible to add prefixed 0b0101.
+// 1) Checks errno code for overflow condition (out of range).
+// 2) If base <= 0, function try to detect base of number by prefix.
+//
+// Return value (like strtoull and strtoll, but reject partial result):
+// - If successful, an integer value corresponding to the str is returned.
+// - If full string conversion can't be performed, 0 is returned.
+// - If the converted value falls out of range of corresponding return type, a
+// range error occurs. In this case value MAX(T)/MIN(T) is returned.
+template<typename T>
+inline bool StringToIntegerImpl(T *val, const char *const str,
+                                const int base = 0,
+                                const bool check_errno = true) {
+  // T is int64_t or uint64_T
+  FLATBUFFERS_ASSERT(str);
+  if (base <= 0) {
+    auto s = str;
+    while (*s && !is_digit(*s)) s++;
+    if (s[0] == '0' && is_alpha_char(s[1], 'X'))
+      return StringToIntegerImpl(val, str, 16, check_errno);
+    // if a prefix not match, try base=10
+    return StringToIntegerImpl(val, str, 10, check_errno);
+  } else {
+    if (check_errno) errno = 0;  // clear thread-local errno
+    auto endptr = str;
+    strtoval_impl(val, str, const_cast<char **>(&endptr), base);
+    if ((*endptr != '\0') || (endptr == str)) {
+      *val = 0;      // erase partial result
+      return false;  // invalid string
+    }
+    // errno is out-of-range, return MAX/MIN
+    if (check_errno && errno) return false;
+    return true;
+  }
+}
+
+template<typename T>
+inline bool StringToFloatImpl(T *val, const char *const str) {
+  // Type T must be either float or double.
+  FLATBUFFERS_ASSERT(str && val);
+  auto end = str;
+  strtoval_impl(val, str, const_cast<char **>(&end));
+  auto done = (end != str) && (*end == '\0');
+  if (!done) *val = 0;  // erase partial result
+  return done;
+}
+
+// Convert a string to an instance of T.
+// Return value (matched with StringToInteger64Impl and strtod):
+// - If successful, a numeric value corresponding to the str is returned.
+// - If full string conversion can't be performed, 0 is returned.
+// - If the converted value falls out of range of corresponding return type, a
+// range error occurs. In this case value MAX(T)/MIN(T) is returned.
+template<typename T> inline bool StringToNumber(const char *s, T *val) {
+  // Assert on `unsigned long` and `signed long` on LP64.
+  // If it is necessary, it could be solved with flatbuffers::enable_if<B,T>.
+  static_assert(sizeof(T) < sizeof(int64_t), "unexpected type T");
+  FLATBUFFERS_ASSERT(s && val);
+  int64_t i64;
+  // The errno check isn't needed, will return MAX/MIN on overflow.
+  if (StringToIntegerImpl(&i64, s, 0, false)) {
+    const int64_t max = (flatbuffers::numeric_limits<T>::max)();
+    const int64_t min = flatbuffers::numeric_limits<T>::lowest();
+    if (i64 > max) {
+      *val = static_cast<T>(max);
+      return false;
+    }
+    if (i64 < min) {
+      // For unsigned types return max to distinguish from
+      // "no conversion can be performed" when 0 is returned.
+      *val = static_cast<T>(flatbuffers::is_unsigned<T>::value ? max : min);
+      return false;
+    }
+    *val = static_cast<T>(i64);
+    return true;
+  }
+  *val = 0;
+  return false;
+}
+
+template<> inline bool StringToNumber<int64_t>(const char *str, int64_t *val) {
+  return StringToIntegerImpl(val, str);
+}
+
+template<>
+inline bool StringToNumber<uint64_t>(const char *str, uint64_t *val) {
+  if (!StringToIntegerImpl(val, str)) return false;
+  // The strtoull accepts negative numbers:
+  // If the minus sign was part of the input sequence, the numeric value
+  // calculated from the sequence of digits is negated as if by unary minus
+  // in the result type, which applies unsigned integer wraparound rules.
+  // Fix this behaviour (except -0).
+  if (*val) {
+    auto s = str;
+    while (*s && !is_digit(*s)) s++;
+    s = (s > str) ? (s - 1) : s;  // step back to one symbol
+    if (*s == '-') {
+      // For unsigned types return the max to distinguish from
+      // "no conversion can be performed".
+      *val = (flatbuffers::numeric_limits<uint64_t>::max)();
+      return false;
+    }
+  }
+  return true;
+}
+
+template<> inline bool StringToNumber(const char *s, float *val) {
+  return StringToFloatImpl(val, s);
+}
+
+template<> inline bool StringToNumber(const char *s, double *val) {
+  return StringToFloatImpl(val, s);
+}
+
+inline int64_t StringToInt(const char *s, int base = 10) {
+  int64_t val;
+  return StringToIntegerImpl(&val, s, base) ? val : 0;
+}
+
+inline uint64_t StringToUInt(const char *s, int base = 10) {
+  uint64_t val;
+  return StringToIntegerImpl(&val, s, base) ? val : 0;
+}
+
+typedef bool (*LoadFileFunction)(const char *filename, bool binary,
+                                 std::string *dest);
+typedef bool (*FileExistsFunction)(const char *filename);
+
+LoadFileFunction SetLoadFileFunction(LoadFileFunction load_file_function);
+
+FileExistsFunction SetFileExistsFunction(
+    FileExistsFunction file_exists_function);
+
+// Check if file "name" exists.
+bool FileExists(const char *name);
+
+// Check if "name" exists and it is also a directory.
+bool DirExists(const char *name);
+
+// Load file "name" into "buf" returning true if successful
+// false otherwise.  If "binary" is false data is read
+// using ifstream's text mode, otherwise data is read with
+// no transcoding.
+bool LoadFile(const char *name, bool binary, std::string *buf);
+
+// Save data "buf" of length "len" bytes into a file
+// "name" returning true if successful, false otherwise.
+// If "binary" is false data is written using ifstream's
+// text mode, otherwise data is written with no
+// transcoding.
+bool SaveFile(const char *name, const char *buf, size_t len, bool binary);
+
+// Save data "buf" into file "name" returning true if
+// successful, false otherwise.  If "binary" is false
+// data is written using ifstream's text mode, otherwise
+// data is written with no transcoding.
+inline bool SaveFile(const char *name, const std::string &buf, bool binary) {
+  return SaveFile(name, buf.c_str(), buf.size(), binary);
+}
+
+// Functionality for minimalistic portable path handling.
+
+// The functions below behave correctly regardless of whether posix ('/') or
+// Windows ('/' or '\\') separators are used.
+
+// Any new separators inserted are always posix.
+FLATBUFFERS_CONSTEXPR char kPathSeparator = '/';
+
+// Returns the path with the extension, if any, removed.
+std::string StripExtension(const std::string &filepath);
+
+// Returns the extension, if any.
+std::string GetExtension(const std::string &filepath);
+
+// Return the last component of the path, after the last separator.
+std::string StripPath(const std::string &filepath);
+
+// Strip the last component of the path + separator.
+std::string StripFileName(const std::string &filepath);
+
+// Concatenates a path with a filename, regardless of whether the path
+// ends in a separator or not.
+std::string ConCatPathFileName(const std::string &path,
+                               const std::string &filename);
+
+// Replaces any '\\' separators with '/'
+std::string PosixPath(const char *path);
+std::string PosixPath(const std::string &path);
+
+// This function ensure a directory exists, by recursively
+// creating dirs for any parts of the path that don't exist yet.
+void EnsureDirExists(const std::string &filepath);
+
+// Obtains the absolute path from any other path.
+// Returns the input path if the absolute path couldn't be resolved.
+std::string AbsolutePath(const std::string &filepath);
+
+// Returns files relative to the --project_root path, prefixed with `//`.
+std::string RelativeToRootPath(const std::string &project,
+                               const std::string &filepath);
+
+// To and from UTF-8 unicode conversion functions
+
+// Convert a unicode code point into a UTF-8 representation by appending it
+// to a string. Returns the number of bytes generated.
+inline int ToUTF8(uint32_t ucc, std::string *out) {
+  FLATBUFFERS_ASSERT(!(ucc & 0x80000000));  // Top bit can't be set.
+  // 6 possible encodings: http://en.wikipedia.org/wiki/UTF-8
+  for (int i = 0; i < 6; i++) {
+    // Max bits this encoding can represent.
+    uint32_t max_bits = 6 + i * 5 + static_cast<int>(!i);
+    if (ucc < (1u << max_bits)) {  // does it fit?
+      // Remaining bits not encoded in the first byte, store 6 bits each
+      uint32_t remain_bits = i * 6;
+      // Store first byte:
+      (*out) += static_cast<char>((0xFE << (max_bits - remain_bits)) |
+                                  (ucc >> remain_bits));
+      // Store remaining bytes:
+      for (int j = i - 1; j >= 0; j--) {
+        (*out) += static_cast<char>(((ucc >> (j * 6)) & 0x3F) | 0x80);
+      }
+      return i + 1;  // Return the number of bytes added.
+    }
+  }
+  FLATBUFFERS_ASSERT(0);  // Impossible to arrive here.
+  return -1;
+}
+
+// Converts whatever prefix of the incoming string corresponds to a valid
+// UTF-8 sequence into a unicode code. The incoming pointer will have been
+// advanced past all bytes parsed.
+// returns -1 upon corrupt UTF-8 encoding (ignore the incoming pointer in
+// this case).
+inline int FromUTF8(const char **in) {
+  int len = 0;
+  // Count leading 1 bits.
+  for (int mask = 0x80; mask >= 0x04; mask >>= 1) {
+    if (**in & mask) {
+      len++;
+    } else {
+      break;
+    }
+  }
+  if ((static_cast<unsigned char>(**in) << len) & 0x80)
+    return -1;  // Bit after leading 1's must be 0.
+  if (!len) return *(*in)++;
+  // UTF-8 encoded values with a length are between 2 and 4 bytes.
+  if (len < 2 || len > 4) { return -1; }
+  // Grab initial bits of the code.
+  int ucc = *(*in)++ & ((1 << (7 - len)) - 1);
+  for (int i = 0; i < len - 1; i++) {
+    if ((**in & 0xC0) != 0x80) return -1;  // Upper bits must 1 0.
+    ucc <<= 6;
+    ucc |= *(*in)++ & 0x3F;  // Grab 6 more bits of the code.
+  }
+  // UTF-8 cannot encode values between 0xD800 and 0xDFFF (reserved for
+  // UTF-16 surrogate pairs).
+  if (ucc >= 0xD800 && ucc <= 0xDFFF) { return -1; }
+  // UTF-8 must represent code points in their shortest possible encoding.
+  switch (len) {
+    case 2:
+      // Two bytes of UTF-8 can represent code points from U+0080 to U+07FF.
+      if (ucc < 0x0080 || ucc > 0x07FF) { return -1; }
+      break;
+    case 3:
+      // Three bytes of UTF-8 can represent code points from U+0800 to U+FFFF.
+      if (ucc < 0x0800 || ucc > 0xFFFF) { return -1; }
+      break;
+    case 4:
+      // Four bytes of UTF-8 can represent code points from U+10000 to U+10FFFF.
+      if (ucc < 0x10000 || ucc > 0x10FFFF) { return -1; }
+      break;
+  }
+  return ucc;
+}
+
+#ifndef FLATBUFFERS_PREFER_PRINTF
+// Wraps a string to a maximum length, inserting new lines where necessary. Any
+// existing whitespace will be collapsed down to a single space. A prefix or
+// suffix can be provided, which will be inserted before or after a wrapped
+// line, respectively.
+inline std::string WordWrap(const std::string in, size_t max_length,
+                            const std::string wrapped_line_prefix,
+                            const std::string wrapped_line_suffix) {
+  std::istringstream in_stream(in);
+  std::string wrapped, line, word;
+
+  in_stream >> word;
+  line = word;
+
+  while (in_stream >> word) {
+    if ((line.length() + 1 + word.length() + wrapped_line_suffix.length()) <
+        max_length) {
+      line += " " + word;
+    } else {
+      wrapped += line + wrapped_line_suffix + "\n";
+      line = wrapped_line_prefix + word;
+    }
+  }
+  wrapped += line;
+
+  return wrapped;
+}
+#endif  // !FLATBUFFERS_PREFER_PRINTF
+
+inline bool EscapeString(const char *s, size_t length, std::string *_text,
+                         bool allow_non_utf8, bool natural_utf8) {
+  std::string &text = *_text;
+  text += "\"";
+  for (uoffset_t i = 0; i < length; i++) {
+    char c = s[i];
+    switch (c) {
+      case '\n': text += "\\n"; break;
+      case '\t': text += "\\t"; break;
+      case '\r': text += "\\r"; break;
+      case '\b': text += "\\b"; break;
+      case '\f': text += "\\f"; break;
+      case '\"': text += "\\\""; break;
+      case '\\': text += "\\\\"; break;
+      default:
+        if (c >= ' ' && c <= '~') {
+          text += c;
+        } else {
+          // Not printable ASCII data. Let's see if it's valid UTF-8 first:
+          const char *utf8 = s + i;
+          int ucc = FromUTF8(&utf8);
+          if (ucc < 0) {
+            if (allow_non_utf8) {
+              text += "\\x";
+              text += IntToStringHex(static_cast<uint8_t>(c), 2);
+            } else {
+              // There are two cases here:
+              //
+              // 1) We reached here by parsing an IDL file. In that case,
+              // we previously checked for non-UTF-8, so we shouldn't reach
+              // here.
+              //
+              // 2) We reached here by someone calling GenerateText()
+              // on a previously-serialized flatbuffer. The data might have
+              // non-UTF-8 Strings, or might be corrupt.
+              //
+              // In both cases, we have to give up and inform the caller
+              // they have no JSON.
+              return false;
+            }
+          } else {
+            if (natural_utf8) {
+              // utf8 points to past all utf-8 bytes parsed
+              text.append(s + i, static_cast<size_t>(utf8 - s - i));
+            } else if (ucc <= 0xFFFF) {
+              // Parses as Unicode within JSON's \uXXXX range, so use that.
+              text += "\\u";
+              text += IntToStringHex(ucc, 4);
+            } else if (ucc <= 0x10FFFF) {
+              // Encode Unicode SMP values to a surrogate pair using two \u
+              // escapes.
+              uint32_t base = ucc - 0x10000;
+              auto high_surrogate = (base >> 10) + 0xD800;
+              auto low_surrogate = (base & 0x03FF) + 0xDC00;
+              text += "\\u";
+              text += IntToStringHex(high_surrogate, 4);
+              text += "\\u";
+              text += IntToStringHex(low_surrogate, 4);
+            }
+            // Skip past characters recognized.
+            i = static_cast<uoffset_t>(utf8 - s - 1);
+          }
+        }
+        break;
+    }
+  }
+  text += "\"";
+  return true;
+}
+
+inline std::string BufferToHexText(const void *buffer, size_t buffer_size,
+                                   size_t max_length,
+                                   const std::string &wrapped_line_prefix,
+                                   const std::string &wrapped_line_suffix) {
+  std::string text = wrapped_line_prefix;
+  size_t start_offset = 0;
+  const char *s = reinterpret_cast<const char *>(buffer);
+  for (size_t i = 0; s && i < buffer_size; i++) {
+    // Last iteration or do we have more?
+    bool have_more = i + 1 < buffer_size;
+    text += "0x";
+    text += IntToStringHex(static_cast<uint8_t>(s[i]), 2);
+    if (have_more) { text += ','; }
+    // If we have more to process and we reached max_length
+    if (have_more &&
+        text.size() + wrapped_line_suffix.size() >= start_offset + max_length) {
+      text += wrapped_line_suffix;
+      text += '\n';
+      start_offset = text.size();
+      text += wrapped_line_prefix;
+    }
+  }
+  text += wrapped_line_suffix;
+  return text;
+}
+
+// Remove paired quotes in a string: "text"|'text' -> text.
+std::string RemoveStringQuotes(const std::string &s);
+
+// Change th global C-locale to locale with name <locale_name>.
+// Returns an actual locale name in <_value>, useful if locale_name is "" or
+// null.
+bool SetGlobalTestLocale(const char *locale_name,
+                         std::string *_value = nullptr);
+
+// Read (or test) a value of environment variable.
+bool ReadEnvironmentVariable(const char *var_name,
+                             std::string *_value = nullptr);
+
+// MSVC specific: Send all assert reports to STDOUT to prevent CI hangs.
+void SetupDefaultCRTReportMode();
+
+}  // namespace flatbuffers
+
+#endif  // FLATBUFFERS_UTIL_H_

Libs/lua/lauxlib.h

@@ -0,0 +1,264 @@
+/*
+** $Id: lauxlib.h,v 1.131.1.1 2017/04/19 17:20:42 roberto Exp $
+** Auxiliary functions for building Lua libraries
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef lauxlib_h
+#define lauxlib_h
+
+
+#include <stddef.h>
+#include <stdio.h>
+
+#include "lua.h"
+
+
+
+/* extra error code for 'luaL_loadfilex' */
+#define LUA_ERRFILE     (LUA_ERRERR+1)
+
+
+/* key, in the registry, for table of loaded modules */
+#define LUA_LOADED_TABLE	"_LOADED"
+
+
+/* key, in the registry, for table of preloaded loaders */
+#define LUA_PRELOAD_TABLE	"_PRELOAD"
+
+
+typedef struct luaL_Reg {
+  const char *name;
+  lua_CFunction func;
+} luaL_Reg;
+
+
+#define LUAL_NUMSIZES	(sizeof(lua_Integer)*16 + sizeof(lua_Number))
+
+LUALIB_API void (luaL_checkversion_) (lua_State *L, lua_Number ver, size_t sz);
+#define luaL_checkversion(L)  \
+	  luaL_checkversion_(L, LUA_VERSION_NUM, LUAL_NUMSIZES)
+
+LUALIB_API int (luaL_getmetafield) (lua_State *L, int obj, const char *e);
+LUALIB_API int (luaL_callmeta) (lua_State *L, int obj, const char *e);
+LUALIB_API const char *(luaL_tolstring) (lua_State *L, int idx, size_t *len);
+LUALIB_API int (luaL_argerror) (lua_State *L, int arg, const char *extramsg);
+LUALIB_API const char *(luaL_checklstring) (lua_State *L, int arg,
+                                                          size_t *l);
+LUALIB_API const char *(luaL_optlstring) (lua_State *L, int arg,
+                                          const char *def, size_t *l);
+LUALIB_API lua_Number (luaL_checknumber) (lua_State *L, int arg);
+LUALIB_API lua_Number (luaL_optnumber) (lua_State *L, int arg, lua_Number def);
+
+LUALIB_API lua_Integer (luaL_checkinteger) (lua_State *L, int arg);
+LUALIB_API lua_Integer (luaL_optinteger) (lua_State *L, int arg,
+                                          lua_Integer def);
+
+LUALIB_API void (luaL_checkstack) (lua_State *L, int sz, const char *msg);
+LUALIB_API void (luaL_checktype) (lua_State *L, int arg, int t);
+LUALIB_API void (luaL_checkany) (lua_State *L, int arg);
+
+LUALIB_API int   (luaL_newmetatable) (lua_State *L, const char *tname);
+LUALIB_API void  (luaL_setmetatable) (lua_State *L, const char *tname);
+LUALIB_API void *(luaL_testudata) (lua_State *L, int ud, const char *tname);
+LUALIB_API void *(luaL_checkudata) (lua_State *L, int ud, const char *tname);
+
+LUALIB_API void (luaL_where) (lua_State *L, int lvl);
+LUALIB_API int (luaL_error) (lua_State *L, const char *fmt, ...);
+
+LUALIB_API int (luaL_checkoption) (lua_State *L, int arg, const char *def,
+                                   const char *const lst[]);
+
+LUALIB_API int (luaL_fileresult) (lua_State *L, int stat, const char *fname);
+LUALIB_API int (luaL_execresult) (lua_State *L, int stat);
+
+/* predefined references */
+#define LUA_NOREF       (-2)
+#define LUA_REFNIL      (-1)
+
+LUALIB_API int (luaL_ref) (lua_State *L, int t);
+LUALIB_API void (luaL_unref) (lua_State *L, int t, int ref);
+
+LUALIB_API int (luaL_loadfilex) (lua_State *L, const char *filename,
+                                               const char *mode);
+
+#define luaL_loadfile(L,f)	luaL_loadfilex(L,f,NULL)
+
+LUALIB_API int (luaL_loadbufferx) (lua_State *L, const char *buff, size_t sz,
+                                   const char *name, const char *mode);
+LUALIB_API int (luaL_loadstring) (lua_State *L, const char *s);
+
+LUALIB_API lua_State *(luaL_newstate) (void);
+
+LUALIB_API lua_Integer (luaL_len) (lua_State *L, int idx);
+
+LUALIB_API const char *(luaL_gsub) (lua_State *L, const char *s, const char *p,
+                                                  const char *r);
+
+LUALIB_API void (luaL_setfuncs) (lua_State *L, const luaL_Reg *l, int nup);
+
+LUALIB_API int (luaL_getsubtable) (lua_State *L, int idx, const char *fname);
+
+LUALIB_API void (luaL_traceback) (lua_State *L, lua_State *L1,
+                                  const char *msg, int level);
+
+LUALIB_API void (luaL_requiref) (lua_State *L, const char *modname,
+                                 lua_CFunction openf, int glb);
+
+/*
+** ===============================================================
+** some useful macros
+** ===============================================================
+*/
+
+
+#define luaL_newlibtable(L,l)	\
+  lua_createtable(L, 0, sizeof(l)/sizeof((l)[0]) - 1)
+
+#define luaL_newlib(L,l)  \
+  (luaL_checkversion(L), luaL_newlibtable(L,l), luaL_setfuncs(L,l,0))
+
+#define luaL_argcheck(L, cond,arg,extramsg)	\
+		((void)((cond) || luaL_argerror(L, (arg), (extramsg))))
+#define luaL_checkstring(L,n)	(luaL_checklstring(L, (n), NULL))
+#define luaL_optstring(L,n,d)	(luaL_optlstring(L, (n), (d), NULL))
+
+#define luaL_typename(L,i)	lua_typename(L, lua_type(L,(i)))
+
+#define luaL_dofile(L, fn) \
+	(luaL_loadfile(L, fn) || lua_pcall(L, 0, LUA_MULTRET, 0))
+
+#define luaL_dostring(L, s) \
+	(luaL_loadstring(L, s) || lua_pcall(L, 0, LUA_MULTRET, 0))
+
+#define luaL_getmetatable(L,n)	(lua_getfield(L, LUA_REGISTRYINDEX, (n)))
+
+#define luaL_opt(L,f,n,d)	(lua_isnoneornil(L,(n)) ? (d) : f(L,(n)))
+
+#define luaL_loadbuffer(L,s,sz,n)	luaL_loadbufferx(L,s,sz,n,NULL)
+
+
+/*
+** {======================================================
+** Generic Buffer manipulation
+** =======================================================
+*/
+
+typedef struct luaL_Buffer {
+  char *b;  /* buffer address */
+  size_t size;  /* buffer size */
+  size_t n;  /* number of characters in buffer */
+  lua_State *L;
+  char initb[LUAL_BUFFERSIZE];  /* initial buffer */
+} luaL_Buffer;
+
+
+#define luaL_addchar(B,c) \
+  ((void)((B)->n < (B)->size || luaL_prepbuffsize((B), 1)), \
+   ((B)->b[(B)->n++] = (c)))
+
+#define luaL_addsize(B,s)	((B)->n += (s))
+
+LUALIB_API void (luaL_buffinit) (lua_State *L, luaL_Buffer *B);
+LUALIB_API char *(luaL_prepbuffsize) (luaL_Buffer *B, size_t sz);
+LUALIB_API void (luaL_addlstring) (luaL_Buffer *B, const char *s, size_t l);
+LUALIB_API void (luaL_addstring) (luaL_Buffer *B, const char *s);
+LUALIB_API void (luaL_addvalue) (luaL_Buffer *B);
+LUALIB_API void (luaL_pushresult) (luaL_Buffer *B);
+LUALIB_API void (luaL_pushresultsize) (luaL_Buffer *B, size_t sz);
+LUALIB_API char *(luaL_buffinitsize) (lua_State *L, luaL_Buffer *B, size_t sz);
+
+#define luaL_prepbuffer(B)	luaL_prepbuffsize(B, LUAL_BUFFERSIZE)
+
+/* }====================================================== */
+
+
+
+/*
+** {======================================================
+** File handles for IO library
+** =======================================================
+*/
+
+/*
+** A file handle is a userdata with metatable 'LUA_FILEHANDLE' and
+** initial structure 'luaL_Stream' (it may contain other fields
+** after that initial structure).
+*/
+
+#define LUA_FILEHANDLE          "FILE*"
+
+
+typedef struct luaL_Stream {
+  FILE *f;  /* stream (NULL for incompletely created streams) */
+  lua_CFunction closef;  /* to close stream (NULL for closed streams) */
+} luaL_Stream;
+
+/* }====================================================== */
+
+
+
+/* compatibility with old module system */
+#if defined(LUA_COMPAT_MODULE)
+
+LUALIB_API void (luaL_pushmodule) (lua_State *L, const char *modname,
+                                   int sizehint);
+LUALIB_API void (luaL_openlib) (lua_State *L, const char *libname,
+                                const luaL_Reg *l, int nup);
+
+#define luaL_register(L,n,l)	(luaL_openlib(L,(n),(l),0))
+
+#endif
+
+
+/*
+** {==================================================================
+** "Abstraction Layer" for basic report of messages and errors
+** ===================================================================
+*/
+
+/* print a string */
+#if !defined(lua_writestring)
+#define lua_writestring(s,l)   fwrite((s), sizeof(char), (l), stdout)
+#endif
+
+/* print a newline and flush the output */
+#if !defined(lua_writeline)
+#define lua_writeline()        (lua_writestring("\n", 1), fflush(stdout))
+#endif
+
+/* print an error message */
+#if !defined(lua_writestringerror)
+#define lua_writestringerror(s,p) \
+        (fprintf(stderr, (s), (p)), fflush(stderr))
+#endif
+
+/* }================================================================== */
+
+
+/*
+** {============================================================
+** Compatibility with deprecated conversions
+** =============================================================
+*/
+#if defined(LUA_COMPAT_APIINTCASTS)
+
+#define luaL_checkunsigned(L,a)	((lua_Unsigned)luaL_checkinteger(L,a))
+#define luaL_optunsigned(L,a,d)	\
+	((lua_Unsigned)luaL_optinteger(L,a,(lua_Integer)(d)))
+
+#define luaL_checkint(L,n)	((int)luaL_checkinteger(L, (n)))
+#define luaL_optint(L,n,d)	((int)luaL_optinteger(L, (n), (d)))
+
+#define luaL_checklong(L,n)	((long)luaL_checkinteger(L, (n)))
+#define luaL_optlong(L,n,d)	((long)luaL_optinteger(L, (n), (d)))
+
+#endif
+/* }============================================================ */
+
+
+
+#endif
+
+

Libs/lua/lua.h

@@ -0,0 +1,486 @@
+/*
+** $Id: lua.h,v 1.332.1.2 2018/06/13 16:58:17 roberto Exp $
+** Lua - A Scripting Language
+** Lua.org, PUC-Rio, Brazil (http://www.lua.org)
+** See Copyright Notice at the end of this file
+*/
+
+
+#ifndef lua_h
+#define lua_h
+
+#include <stdarg.h>
+#include <stddef.h>
+
+
+#include "luaconf.h"
+
+
+#define LUA_VERSION_MAJOR	"5"
+#define LUA_VERSION_MINOR	"3"
+#define LUA_VERSION_NUM		503
+#define LUA_VERSION_RELEASE	"5"
+
+#define LUA_VERSION	"Lua " LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
+#define LUA_RELEASE	LUA_VERSION "." LUA_VERSION_RELEASE
+#define LUA_COPYRIGHT	LUA_RELEASE "  Copyright (C) 1994-2018 Lua.org, PUC-Rio"
+#define LUA_AUTHORS	"R. Ierusalimschy, L. H. de Figueiredo, W. Celes"
+
+
+/* mark for precompiled code ('<esc>Lua') */
+#define LUA_SIGNATURE	"\x1bLua"
+
+/* option for multiple returns in 'lua_pcall' and 'lua_call' */
+#define LUA_MULTRET	(-1)
+
+
+/*
+** Pseudo-indices
+** (-LUAI_MAXSTACK is the minimum valid index; we keep some free empty
+** space after that to help overflow detection)
+*/
+#define LUA_REGISTRYINDEX	(-LUAI_MAXSTACK - 1000)
+#define lua_upvalueindex(i)	(LUA_REGISTRYINDEX - (i))
+
+
+/* thread status */
+#define LUA_OK		0
+#define LUA_YIELD	1
+#define LUA_ERRRUN	2
+#define LUA_ERRSYNTAX	3
+#define LUA_ERRMEM	4
+#define LUA_ERRGCMM	5
+#define LUA_ERRERR	6
+
+
+typedef struct lua_State lua_State;
+
+
+/*
+** basic types
+*/
+#define LUA_TNONE		(-1)
+
+#define LUA_TNIL		0
+#define LUA_TBOOLEAN		1
+#define LUA_TLIGHTUSERDATA	2
+#define LUA_TNUMBER		3
+#define LUA_TSTRING		4
+#define LUA_TTABLE		5
+#define LUA_TFUNCTION		6
+#define LUA_TUSERDATA		7
+#define LUA_TTHREAD		8
+
+#define LUA_NUMTAGS		9
+
+
+
+/* minimum Lua stack available to a C function */
+#define LUA_MINSTACK	20
+
+
+/* predefined values in the registry */
+#define LUA_RIDX_MAINTHREAD	1
+#define LUA_RIDX_GLOBALS	2
+#define LUA_RIDX_LAST		LUA_RIDX_GLOBALS
+
+
+/* type of numbers in Lua */
+typedef LUA_NUMBER lua_Number;
+
+
+/* type for integer functions */
+typedef LUA_INTEGER lua_Integer;
+
+/* unsigned integer type */
+typedef LUA_UNSIGNED lua_Unsigned;
+
+/* type for continuation-function contexts */
+typedef LUA_KCONTEXT lua_KContext;
+
+
+/*
+** Type for C functions registered with Lua
+*/
+typedef int (*lua_CFunction) (lua_State *L);
+
+/*
+** Type for continuation functions
+*/
+typedef int (*lua_KFunction) (lua_State *L, int status, lua_KContext ctx);
+
+
+/*
+** Type for functions that read/write blocks when loading/dumping Lua chunks
+*/
+typedef const char * (*lua_Reader) (lua_State *L, void *ud, size_t *sz);
+
+typedef int (*lua_Writer) (lua_State *L, const void *p, size_t sz, void *ud);
+
+
+/*
+** Type for memory-allocation functions
+*/
+typedef void * (*lua_Alloc) (void *ud, void *ptr, size_t osize, size_t nsize);
+
+
+
+/*
+** generic extra include file
+*/
+#if defined(LUA_USER_H)
+#include LUA_USER_H
+#endif
+
+
+/*
+** RCS ident string
+*/
+extern const char lua_ident[];
+
+
+/*
+** state manipulation
+*/
+LUA_API lua_State *(lua_newstate) (lua_Alloc f, void *ud);
+LUA_API void       (lua_close) (lua_State *L);
+LUA_API lua_State *(lua_newthread) (lua_State *L);
+
+LUA_API lua_CFunction (lua_atpanic) (lua_State *L, lua_CFunction panicf);
+
+
+LUA_API const lua_Number *(lua_version) (lua_State *L);
+
+
+/*
+** basic stack manipulation
+*/
+LUA_API int   (lua_absindex) (lua_State *L, int idx);
+LUA_API int   (lua_gettop) (lua_State *L);
+LUA_API void  (lua_settop) (lua_State *L, int idx);
+LUA_API void  (lua_pushvalue) (lua_State *L, int idx);
+LUA_API void  (lua_rotate) (lua_State *L, int idx, int n);
+LUA_API void  (lua_copy) (lua_State *L, int fromidx, int toidx);
+LUA_API int   (lua_checkstack) (lua_State *L, int n);
+
+LUA_API void  (lua_xmove) (lua_State *from, lua_State *to, int n);
+
+
+/*
+** access functions (stack -> C)
+*/
+
+LUA_API int             (lua_isnumber) (lua_State *L, int idx);
+LUA_API int             (lua_isstring) (lua_State *L, int idx);
+LUA_API int             (lua_iscfunction) (lua_State *L, int idx);
+LUA_API int             (lua_isinteger) (lua_State *L, int idx);
+LUA_API int             (lua_isuserdata) (lua_State *L, int idx);
+LUA_API int             (lua_type) (lua_State *L, int idx);
+LUA_API const char     *(lua_typename) (lua_State *L, int tp);
+
+LUA_API lua_Number      (lua_tonumberx) (lua_State *L, int idx, int *isnum);
+LUA_API lua_Integer     (lua_tointegerx) (lua_State *L, int idx, int *isnum);
+LUA_API int             (lua_toboolean) (lua_State *L, int idx);
+LUA_API const char     *(lua_tolstring) (lua_State *L, int idx, size_t *len);
+LUA_API size_t          (lua_rawlen) (lua_State *L, int idx);
+LUA_API lua_CFunction   (lua_tocfunction) (lua_State *L, int idx);
+LUA_API void	       *(lua_touserdata) (lua_State *L, int idx);
+LUA_API lua_State      *(lua_tothread) (lua_State *L, int idx);
+LUA_API const void     *(lua_topointer) (lua_State *L, int idx);
+
+
+/*
+** Comparison and arithmetic functions
+*/
+
+#define LUA_OPADD	0	/* ORDER TM, ORDER OP */
+#define LUA_OPSUB	1
+#define LUA_OPMUL	2
+#define LUA_OPMOD	3
+#define LUA_OPPOW	4
+#define LUA_OPDIV	5
+#define LUA_OPIDIV	6
+#define LUA_OPBAND	7
+#define LUA_OPBOR	8
+#define LUA_OPBXOR	9
+#define LUA_OPSHL	10
+#define LUA_OPSHR	11
+#define LUA_OPUNM	12
+#define LUA_OPBNOT	13
+
+LUA_API void  (lua_arith) (lua_State *L, int op);
+
+#define LUA_OPEQ	0
+#define LUA_OPLT	1
+#define LUA_OPLE	2
+
+LUA_API int   (lua_rawequal) (lua_State *L, int idx1, int idx2);
+LUA_API int   (lua_compare) (lua_State *L, int idx1, int idx2, int op);
+
+
+/*
+** push functions (C -> stack)
+*/
+LUA_API void        (lua_pushnil) (lua_State *L);
+LUA_API void        (lua_pushnumber) (lua_State *L, lua_Number n);
+LUA_API void        (lua_pushinteger) (lua_State *L, lua_Integer n);
+LUA_API const char *(lua_pushlstring) (lua_State *L, const char *s, size_t len);
+LUA_API const char *(lua_pushstring) (lua_State *L, const char *s);
+LUA_API const char *(lua_pushvfstring) (lua_State *L, const char *fmt,
+                                                      va_list argp);
+LUA_API const char *(lua_pushfstring) (lua_State *L, const char *fmt, ...);
+LUA_API void  (lua_pushcclosure) (lua_State *L, lua_CFunction fn, int n);
+LUA_API void  (lua_pushboolean) (lua_State *L, int b);
+LUA_API void  (lua_pushlightuserdata) (lua_State *L, void *p);
+LUA_API int   (lua_pushthread) (lua_State *L);
+
+
+/*
+** get functions (Lua -> stack)
+*/
+LUA_API int (lua_getglobal) (lua_State *L, const char *name);
+LUA_API int (lua_gettable) (lua_State *L, int idx);
+LUA_API int (lua_getfield) (lua_State *L, int idx, const char *k);
+LUA_API int (lua_geti) (lua_State *L, int idx, lua_Integer n);
+LUA_API int (lua_rawget) (lua_State *L, int idx);
+LUA_API int (lua_rawgeti) (lua_State *L, int idx, lua_Integer n);
+LUA_API int (lua_rawgetp) (lua_State *L, int idx, const void *p);
+
+LUA_API void  (lua_createtable) (lua_State *L, int narr, int nrec);
+LUA_API void *(lua_newuserdata) (lua_State *L, size_t sz);
+LUA_API int   (lua_getmetatable) (lua_State *L, int objindex);
+LUA_API int  (lua_getuservalue) (lua_State *L, int idx);
+
+
+/*
+** set functions (stack -> Lua)
+*/
+LUA_API void  (lua_setglobal) (lua_State *L, const char *name);
+LUA_API void  (lua_settable) (lua_State *L, int idx);
+LUA_API void  (lua_setfield) (lua_State *L, int idx, const char *k);
+LUA_API void  (lua_seti) (lua_State *L, int idx, lua_Integer n);
+LUA_API void  (lua_rawset) (lua_State *L, int idx);
+LUA_API void  (lua_rawseti) (lua_State *L, int idx, lua_Integer n);
+LUA_API void  (lua_rawsetp) (lua_State *L, int idx, const void *p);
+LUA_API int   (lua_setmetatable) (lua_State *L, int objindex);
+LUA_API void  (lua_setuservalue) (lua_State *L, int idx);
+
+
+/*
+** 'load' and 'call' functions (load and run Lua code)
+*/
+LUA_API void  (lua_callk) (lua_State *L, int nargs, int nresults,
+                           lua_KContext ctx, lua_KFunction k);
+#define lua_call(L,n,r)		lua_callk(L, (n), (r), 0, NULL)
+
+LUA_API int   (lua_pcallk) (lua_State *L, int nargs, int nresults, int errfunc,
+                            lua_KContext ctx, lua_KFunction k);
+#define lua_pcall(L,n,r,f)	lua_pcallk(L, (n), (r), (f), 0, NULL)
+
+LUA_API int   (lua_load) (lua_State *L, lua_Reader reader, void *dt,
+                          const char *chunkname, const char *mode);
+
+LUA_API int (lua_dump) (lua_State *L, lua_Writer writer, void *data, int strip);
+
+
+/*
+** coroutine functions
+*/
+LUA_API int  (lua_yieldk)     (lua_State *L, int nresults, lua_KContext ctx,
+                               lua_KFunction k);
+LUA_API int  (lua_resume)     (lua_State *L, lua_State *from, int narg);
+LUA_API int  (lua_status)     (lua_State *L);
+LUA_API int (lua_isyieldable) (lua_State *L);
+
+#define lua_yield(L,n)		lua_yieldk(L, (n), 0, NULL)
+
+
+/*
+** garbage-collection function and options
+*/
+
+#define LUA_GCSTOP		0
+#define LUA_GCRESTART		1
+#define LUA_GCCOLLECT		2
+#define LUA_GCCOUNT		3
+#define LUA_GCCOUNTB		4
+#define LUA_GCSTEP		5
+#define LUA_GCSETPAUSE		6
+#define LUA_GCSETSTEPMUL	7
+#define LUA_GCISRUNNING		9
+
+LUA_API int (lua_gc) (lua_State *L, int what, int data);
+
+
+/*
+** miscellaneous functions
+*/
+
+LUA_API int   (lua_error) (lua_State *L);
+
+LUA_API int   (lua_next) (lua_State *L, int idx);
+
+LUA_API void  (lua_concat) (lua_State *L, int n);
+LUA_API void  (lua_len)    (lua_State *L, int idx);
+
+LUA_API size_t   (lua_stringtonumber) (lua_State *L, const char *s);
+
+LUA_API lua_Alloc (lua_getallocf) (lua_State *L, void **ud);
+LUA_API void      (lua_setallocf) (lua_State *L, lua_Alloc f, void *ud);
+
+
+
+/*
+** {==============================================================
+** some useful macros
+** ===============================================================
+*/
+
+#define lua_getextraspace(L)	((void *)((char *)(L) - LUA_EXTRASPACE))
+
+#define lua_tonumber(L,i)	lua_tonumberx(L,(i),NULL)
+#define lua_tointeger(L,i)	lua_tointegerx(L,(i),NULL)
+
+#define lua_pop(L,n)		lua_settop(L, -(n)-1)
+
+#define lua_newtable(L)		lua_createtable(L, 0, 0)
+
+#define lua_register(L,n,f) (lua_pushcfunction(L, (f)), lua_setglobal(L, (n)))
+
+#define lua_pushcfunction(L,f)	lua_pushcclosure(L, (f), 0)
+
+#define lua_isfunction(L,n)	(lua_type(L, (n)) == LUA_TFUNCTION)
+#define lua_istable(L,n)	(lua_type(L, (n)) == LUA_TTABLE)
+#define lua_islightuserdata(L,n)	(lua_type(L, (n)) == LUA_TLIGHTUSERDATA)
+#define lua_isnil(L,n)		(lua_type(L, (n)) == LUA_TNIL)
+#define lua_isboolean(L,n)	(lua_type(L, (n)) == LUA_TBOOLEAN)
+#define lua_isthread(L,n)	(lua_type(L, (n)) == LUA_TTHREAD)
+#define lua_isnone(L,n)		(lua_type(L, (n)) == LUA_TNONE)
+#define lua_isnoneornil(L, n)	(lua_type(L, (n)) <= 0)
+
+#define lua_pushliteral(L, s)	lua_pushstring(L, "" s)
+
+#define lua_pushglobaltable(L)  \
+	((void)lua_rawgeti(L, LUA_REGISTRYINDEX, LUA_RIDX_GLOBALS))
+
+#define lua_tostring(L,i)	lua_tolstring(L, (i), NULL)
+
+
+#define lua_insert(L,idx)	lua_rotate(L, (idx), 1)
+
+#define lua_remove(L,idx)	(lua_rotate(L, (idx), -1), lua_pop(L, 1))
+
+#define lua_replace(L,idx)	(lua_copy(L, -1, (idx)), lua_pop(L, 1))
+
+/* }============================================================== */
+
+
+/*
+** {==============================================================
+** compatibility macros for unsigned conversions
+** ===============================================================
+*/
+#if defined(LUA_COMPAT_APIINTCASTS)
+
+#define lua_pushunsigned(L,n)	lua_pushinteger(L, (lua_Integer)(n))
+#define lua_tounsignedx(L,i,is)	((lua_Unsigned)lua_tointegerx(L,i,is))
+#define lua_tounsigned(L,i)	lua_tounsignedx(L,(i),NULL)
+
+#endif
+/* }============================================================== */
+
+/*
+** {======================================================================
+** Debug API
+** =======================================================================
+*/
+
+
+/*
+** Event codes
+*/
+#define LUA_HOOKCALL	0
+#define LUA_HOOKRET	1
+#define LUA_HOOKLINE	2
+#define LUA_HOOKCOUNT	3
+#define LUA_HOOKTAILCALL 4
+
+
+/*
+** Event masks
+*/
+#define LUA_MASKCALL	(1 << LUA_HOOKCALL)
+#define LUA_MASKRET	(1 << LUA_HOOKRET)
+#define LUA_MASKLINE	(1 << LUA_HOOKLINE)
+#define LUA_MASKCOUNT	(1 << LUA_HOOKCOUNT)
+
+typedef struct lua_Debug lua_Debug;  /* activation record */
+
+
+/* Functions to be called by the debugger in specific events */
+typedef void (*lua_Hook) (lua_State *L, lua_Debug *ar);
+
+
+LUA_API int (lua_getstack) (lua_State *L, int level, lua_Debug *ar);
+LUA_API int (lua_getinfo) (lua_State *L, const char *what, lua_Debug *ar);
+LUA_API const char *(lua_getlocal) (lua_State *L, const lua_Debug *ar, int n);
+LUA_API const char *(lua_setlocal) (lua_State *L, const lua_Debug *ar, int n);
+LUA_API const char *(lua_getupvalue) (lua_State *L, int funcindex, int n);
+LUA_API const char *(lua_setupvalue) (lua_State *L, int funcindex, int n);
+
+LUA_API void *(lua_upvalueid) (lua_State *L, int fidx, int n);
+LUA_API void  (lua_upvaluejoin) (lua_State *L, int fidx1, int n1,
+                                               int fidx2, int n2);
+
+LUA_API void (lua_sethook) (lua_State *L, lua_Hook func, int mask, int count);
+LUA_API lua_Hook (lua_gethook) (lua_State *L);
+LUA_API int (lua_gethookmask) (lua_State *L);
+LUA_API int (lua_gethookcount) (lua_State *L);
+
+
+struct lua_Debug {
+  int event;
+  const char *name;	/* (n) */
+  const char *namewhat;	/* (n) 'global', 'local', 'field', 'method' */
+  const char *what;	/* (S) 'Lua', 'C', 'main', 'tail' */
+  const char *source;	/* (S) */
+  int currentline;	/* (l) */
+  int linedefined;	/* (S) */
+  int lastlinedefined;	/* (S) */
+  unsigned char nups;	/* (u) number of upvalues */
+  unsigned char nparams;/* (u) number of parameters */
+  char isvararg;        /* (u) */
+  char istailcall;	/* (t) */
+  char short_src[LUA_IDSIZE]; /* (S) */
+  /* private part */
+  struct CallInfo *i_ci;  /* active function */
+};
+
+/* }====================================================================== */
+
+
+/******************************************************************************
+* Copyright (C) 1994-2018 Lua.org, PUC-Rio.
+*
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to deal in the Software without restriction, including
+* without limitation the rights to use, copy, modify, merge, publish,
+* distribute, sublicense, and/or sell copies of the Software, and to
+* permit persons to whom the Software is furnished to do so, subject to
+* the following conditions:
+*
+* The above copyright notice and this permission notice shall be
+* included in all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+******************************************************************************/
+
+
+#endif

Libs/lua/lua.hpp

@@ -0,0 +1,9 @@
+// lua.hpp
+// Lua header files for C++
+// <<extern "C">> not supplied automatically because Lua also compiles as C++
+
+extern "C" {
+#include "lua.h"
+#include "lualib.h"
+#include "lauxlib.h"
+}

Libs/lua/luaconf.h

@@ -0,0 +1,792 @@
+/*
+** $Id: luaconf.h,v 1.259.1.1 2017/04/19 17:29:57 roberto Exp $
+** Configuration file for Lua
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef luaconf_h
+#define luaconf_h
+
+#include <limits.h>
+#include <stddef.h>
+
+
+/*
+** ===================================================================
+** Search for "@@" to find all configurable definitions.
+** ===================================================================
+*/
+
+
+/*
+** {====================================================================
+** System Configuration: macros to adapt (if needed) Lua to some
+** particular platform, for instance compiling it with 32-bit numbers or
+** restricting it to C89.
+** =====================================================================
+*/
+
+/*
+@@ LUA_32BITS enables Lua with 32-bit integers and 32-bit floats. You
+** can also define LUA_32BITS in the make file, but changing here you
+** ensure that all software connected to Lua will be compiled with the
+** same configuration.
+*/
+/* #define LUA_32BITS */
+
+
+/*
+@@ LUA_USE_C89 controls the use of non-ISO-C89 features.
+** Define it if you want Lua to avoid the use of a few C99 features
+** or Windows-specific features on Windows.
+*/
+/* #define LUA_USE_C89 */
+
+
+/*
+** By default, Lua on Windows use (some) specific Windows features
+*/
+#if !defined(LUA_USE_C89) && defined(_WIN32) && !defined(_WIN32_WCE)
+#define LUA_USE_WINDOWS  /* enable goodies for regular Windows */
+#endif
+
+
+#if defined(LUA_USE_WINDOWS)
+#define LUA_DL_DLL	/* enable support for DLL */
+#define LUA_USE_C89	/* broadly, Windows is C89 */
+#endif
+
+
+#if defined(LUA_USE_LINUX)
+#define LUA_USE_POSIX
+#define LUA_USE_DLOPEN		/* needs an extra library: -ldl */
+#define LUA_USE_READLINE	/* needs some extra libraries */
+#endif
+
+
+#if defined(LUA_USE_MACOSX)
+#define LUA_USE_POSIX
+#define LUA_USE_DLOPEN		/* MacOS does not need -ldl */
+#define LUA_USE_READLINE	/* needs an extra library: -lreadline */
+#endif
+
+
+/*
+@@ LUA_C89_NUMBERS ensures that Lua uses the largest types available for
+** C89 ('long' and 'double'); Windows always has '__int64', so it does
+** not need to use this case.
+*/
+#if defined(LUA_USE_C89) && !defined(LUA_USE_WINDOWS)
+#define LUA_C89_NUMBERS
+#endif
+
+
+
+/*
+@@ LUAI_BITSINT defines the (minimum) number of bits in an 'int'.
+*/
+/* avoid undefined shifts */
+#if ((INT_MAX >> 15) >> 15) >= 1
+#define LUAI_BITSINT	32
+#else
+/* 'int' always must have at least 16 bits */
+#define LUAI_BITSINT	16
+#endif
+
+
+/*
+@@ LUA_INT_TYPE defines the type for Lua integers.
+@@ LUA_FLOAT_TYPE defines the type for Lua floats.
+** Lua should work fine with any mix of these options (if supported
+** by your C compiler). The usual configurations are 64-bit integers
+** and 'double' (the default), 32-bit integers and 'float' (for
+** restricted platforms), and 'long'/'double' (for C compilers not
+** compliant with C99, which may not have support for 'long long').
+*/
+
+/* predefined options for LUA_INT_TYPE */
+#define LUA_INT_INT		1
+#define LUA_INT_LONG		2
+#define LUA_INT_LONGLONG	3
+
+/* predefined options for LUA_FLOAT_TYPE */
+#define LUA_FLOAT_FLOAT		1
+#define LUA_FLOAT_DOUBLE	2
+#define LUA_FLOAT_LONGDOUBLE	3
+
+#if defined(LUA_32BITS)		/* { */
+/*
+** 32-bit integers and 'float'
+*/
+#if LUAI_BITSINT >= 32  /* use 'int' if big enough */
+#define LUA_INT_TYPE	LUA_INT_INT
+#else  /* otherwise use 'long' */
+#define LUA_INT_TYPE	LUA_INT_LONG
+#endif
+#define LUA_FLOAT_TYPE	LUA_FLOAT_FLOAT
+
+#elif defined(LUA_C89_NUMBERS)	/* }{ */
+/*
+** largest types available for C89 ('long' and 'double')
+*/
+#define LUA_INT_TYPE	LUA_INT_LONG
+#define LUA_FLOAT_TYPE	LUA_FLOAT_DOUBLE
+
+#endif				/* } */
+
+
+/*
+** default configuration for 64-bit Lua ('long long' and 'double')
+*/
+#if !defined(LUA_INT_TYPE)
+#define LUA_INT_TYPE	LUA_INT_LONGLONG
+#endif
+
+#if !defined(LUA_FLOAT_TYPE)
+#define LUA_FLOAT_TYPE	LUA_FLOAT_DOUBLE
+#endif
+
+/* }================================================================== */
+
+
+
+
+/*
+** {==================================================================
+** Configuration for Paths.
+** ===================================================================
+*/
+
+/*
+** LUA_PATH_SEP is the character that separates templates in a path.
+** LUA_PATH_MARK is the string that marks the substitution points in a
+** template.
+** LUA_EXEC_DIR in a Windows path is replaced by the executable's
+** directory.
+*/
+#define LUA_PATH_SEP            ";"
+#define LUA_PATH_MARK           "?"
+#define LUA_EXEC_DIR            "!"
+
+
+/*
+@@ LUA_PATH_DEFAULT is the default path that Lua uses to look for
+** Lua libraries.
+@@ LUA_CPATH_DEFAULT is the default path that Lua uses to look for
+** C libraries.
+** CHANGE them if your machine has a non-conventional directory
+** hierarchy or if you want to install your libraries in
+** non-conventional directories.
+*/
+#define LUA_VDIR	LUA_VERSION_MAJOR "." LUA_VERSION_MINOR
+#if defined(_WIN32)	/* { */
+/*
+** In Windows, any exclamation mark ('!') in the path is replaced by the
+** path of the directory of the executable file of the current process.
+*/
+#define LUA_LDIR	"!\\lua\\"
+#define LUA_CDIR	"!\\"
+#define LUA_SHRDIR	"!\\..\\share\\lua\\" LUA_VDIR "\\"
+#define LUA_PATH_DEFAULT  \
+		LUA_LDIR"?.lua;"  LUA_LDIR"?\\init.lua;" \
+		LUA_CDIR"?.lua;"  LUA_CDIR"?\\init.lua;" \
+		LUA_SHRDIR"?.lua;" LUA_SHRDIR"?\\init.lua;" \
+		".\\?.lua;" ".\\?\\init.lua"
+#define LUA_CPATH_DEFAULT \
+		LUA_CDIR"?.dll;" \
+		LUA_CDIR"..\\lib\\lua\\" LUA_VDIR "\\?.dll;" \
+		LUA_CDIR"loadall.dll;" ".\\?.dll;" \
+		LUA_CDIR"?53.dll;" ".\\?53.dll"
+
+#else			/* }{ */
+
+#define LUA_ROOT	"/usr/local/"
+#define LUA_LDIR	LUA_ROOT "share/lua/" LUA_VDIR "/"
+#define LUA_CDIR	LUA_ROOT "lib/lua/" LUA_VDIR "/"
+#define LUA_PATH_DEFAULT  \
+		LUA_LDIR"?.lua;"  LUA_LDIR"?/init.lua;" \
+		LUA_CDIR"?.lua;"  LUA_CDIR"?/init.lua;" \
+		"./?.lua;" "./?/init.lua"
+#define LUA_CPATH_DEFAULT \
+		LUA_CDIR"?.so;" LUA_CDIR"loadall.so;" "./?.so;" \
+		LUA_CDIR"lib?53.so;" "./lib?53.so"
+#endif			/* } */
+
+
+/*
+@@ LUA_DIRSEP is the directory separator (for submodules).
+** CHANGE it if your machine does not use "/" as the directory separator
+** and is not Windows. (On Windows Lua automatically uses "\".)
+*/
+#if defined(_WIN32)
+#define LUA_DIRSEP	"\\"
+#else
+#define LUA_DIRSEP	"/"
+#endif
+
+/* }================================================================== */
+
+
+/*
+** {==================================================================
+** Marks for exported symbols in the C code
+** ===================================================================
+*/
+
+/*
+@@ LUA_API is a mark for all core API functions.
+@@ LUALIB_API is a mark for all auxiliary library functions.
+@@ LUAMOD_API is a mark for all standard library opening functions.
+** CHANGE them if you need to define those functions in some special way.
+** For instance, if you want to create one Windows DLL with the core and
+** the libraries, you may want to use the following definition (define
+** LUA_BUILD_AS_DLL to get it).
+*/
+#if defined(LUA_BUILD_AS_DLL)	/* { */
+
+#if defined(LUA_CORE) || defined(LUA_LIB)	/* { */
+#define LUA_API __declspec(dllexport)
+#else						/* }{ */
+#define LUA_API __declspec(dllimport)
+#endif						/* } */
+
+#else				/* }{ */
+
+#define LUA_API		extern
+
+#endif				/* } */
+
+
+/* more often than not the libs go together with the core */
+#define LUALIB_API	LUA_API
+#define LUAMOD_API	LUALIB_API
+
+
+/*
+@@ LUAI_FUNC is a mark for all extern functions that are not to be
+** exported to outside modules.
+@@ LUAI_DDEF and LUAI_DDEC are marks for all extern (const) variables
+** that are not to be exported to outside modules (LUAI_DDEF for
+** definitions and LUAI_DDEC for declarations).
+** CHANGE them if you need to mark them in some special way. Elf/gcc
+** (versions 3.2 and later) mark them as "hidden" to optimize access
+** when Lua is compiled as a shared library. Not all elf targets support
+** this attribute. Unfortunately, gcc does not offer a way to check
+** whether the target offers that support, and those without support
+** give a warning about it. To avoid these warnings, change to the
+** default definition.
+*/
+#if defined(__GNUC__) && ((__GNUC__*100 + __GNUC_MINOR__) >= 302) && \
+    defined(__ELF__)		/* { */
+#define LUAI_FUNC	__attribute__((visibility("hidden"))) extern
+#else				/* }{ */
+#define LUAI_FUNC	extern
+#endif				/* } */
+
+#define LUAI_DDEC	LUAI_FUNC
+#define LUAI_DDEF	/* empty */
+
+/* }================================================================== */
+
+
+/*
+** {==================================================================
+** Compatibility with previous versions
+** ===================================================================
+*/
+
+/*
+@@ LUA_COMPAT_5_2 controls other macros for compatibility with Lua 5.2.
+@@ LUA_COMPAT_5_1 controls other macros for compatibility with Lua 5.1.
+** You can define it to get all options, or change specific options
+** to fit your specific needs.
+*/
+#if defined(LUA_COMPAT_5_2)	/* { */
+
+/*
+@@ LUA_COMPAT_MATHLIB controls the presence of several deprecated
+** functions in the mathematical library.
+*/
+#define LUA_COMPAT_MATHLIB
+
+/*
+@@ LUA_COMPAT_BITLIB controls the presence of library 'bit32'.
+*/
+#define LUA_COMPAT_BITLIB
+
+/*
+@@ LUA_COMPAT_IPAIRS controls the effectiveness of the __ipairs metamethod.
+*/
+#define LUA_COMPAT_IPAIRS
+
+/*
+@@ LUA_COMPAT_APIINTCASTS controls the presence of macros for
+** manipulating other integer types (lua_pushunsigned, lua_tounsigned,
+** luaL_checkint, luaL_checklong, etc.)
+*/
+#define LUA_COMPAT_APIINTCASTS
+
+#endif				/* } */
+
+
+#if defined(LUA_COMPAT_5_1)	/* { */
+
+/* Incompatibilities from 5.2 -> 5.3 */
+#define LUA_COMPAT_MATHLIB
+#define LUA_COMPAT_APIINTCASTS
+
+/*
+@@ LUA_COMPAT_UNPACK controls the presence of global 'unpack'.
+** You can replace it with 'table.unpack'.
+*/
+#define LUA_COMPAT_UNPACK
+
+/*
+@@ LUA_COMPAT_LOADERS controls the presence of table 'package.loaders'.
+** You can replace it with 'package.searchers'.
+*/
+#define LUA_COMPAT_LOADERS
+
+/*
+@@ macro 'lua_cpcall' emulates deprecated function lua_cpcall.
+** You can call your C function directly (with light C functions).
+*/
+#define lua_cpcall(L,f,u)  \
+	(lua_pushcfunction(L, (f)), \
+	 lua_pushlightuserdata(L,(u)), \
+	 lua_pcall(L,1,0,0))
+
+
+/*
+@@ LUA_COMPAT_LOG10 defines the function 'log10' in the math library.
+** You can rewrite 'log10(x)' as 'log(x, 10)'.
+*/
+#define LUA_COMPAT_LOG10
+
+/*
+@@ LUA_COMPAT_LOADSTRING defines the function 'loadstring' in the base
+** library. You can rewrite 'loadstring(s)' as 'load(s)'.
+*/
+#define LUA_COMPAT_LOADSTRING
+
+/*
+@@ LUA_COMPAT_MAXN defines the function 'maxn' in the table library.
+*/
+#define LUA_COMPAT_MAXN
+
+/*
+@@ The following macros supply trivial compatibility for some
+** changes in the API. The macros themselves document how to
+** change your code to avoid using them.
+*/
+#define lua_strlen(L,i)		lua_rawlen(L, (i))
+
+#define lua_objlen(L,i)		lua_rawlen(L, (i))
+
+#define lua_equal(L,idx1,idx2)		lua_compare(L,(idx1),(idx2),LUA_OPEQ)
+#define lua_lessthan(L,idx1,idx2)	lua_compare(L,(idx1),(idx2),LUA_OPLT)
+
+/*
+@@ LUA_COMPAT_MODULE controls compatibility with previous
+** module functions 'module' (Lua) and 'luaL_register' (C).
+*/
+#define LUA_COMPAT_MODULE
+
+#endif				/* } */
+
+
+/*
+@@ LUA_COMPAT_FLOATSTRING makes Lua format integral floats without a
+@@ a float mark ('.0').
+** This macro is not on by default even in compatibility mode,
+** because this is not really an incompatibility.
+*/
+/* #define LUA_COMPAT_FLOATSTRING */
+
+/* }================================================================== */
+
+
+
+/*
+** {==================================================================
+** Configuration for Numbers.
+** Change these definitions if no predefined LUA_FLOAT_* / LUA_INT_*
+** satisfy your needs.
+** ===================================================================
+*/
+
+/*
+@@ LUA_NUMBER is the floating-point type used by Lua.
+@@ LUAI_UACNUMBER is the result of a 'default argument promotion'
+@@ over a floating number.
+@@ l_mathlim(x) corrects limit name 'x' to the proper float type
+** by prefixing it with one of FLT/DBL/LDBL.
+@@ LUA_NUMBER_FRMLEN is the length modifier for writing floats.
+@@ LUA_NUMBER_FMT is the format for writing floats.
+@@ lua_number2str converts a float to a string.
+@@ l_mathop allows the addition of an 'l' or 'f' to all math operations.
+@@ l_floor takes the floor of a float.
+@@ lua_str2number converts a decimal numeric string to a number.
+*/
+
+
+/* The following definitions are good for most cases here */
+
+#define l_floor(x)		(l_mathop(floor)(x))
+
+#define lua_number2str(s,sz,n)  \
+	l_sprintf((s), sz, LUA_NUMBER_FMT, (LUAI_UACNUMBER)(n))
+
+/*
+@@ lua_numbertointeger converts a float number to an integer, or
+** returns 0 if float is not within the range of a lua_Integer.
+** (The range comparisons are tricky because of rounding. The tests
+** here assume a two-complement representation, where MININTEGER always
+** has an exact representation as a float; MAXINTEGER may not have one,
+** and therefore its conversion to float may have an ill-defined value.)
+*/
+#define lua_numbertointeger(n,p) \
+  ((n) >= (LUA_NUMBER)(LUA_MININTEGER) && \
+   (n) < -(LUA_NUMBER)(LUA_MININTEGER) && \
+      (*(p) = (LUA_INTEGER)(n), 1))
+
+
+/* now the variable definitions */
+
+#if LUA_FLOAT_TYPE == LUA_FLOAT_FLOAT		/* { single float */
+
+#define LUA_NUMBER	float
+
+#define l_mathlim(n)		(FLT_##n)
+
+#define LUAI_UACNUMBER	double
+
+#define LUA_NUMBER_FRMLEN	""
+#define LUA_NUMBER_FMT		"%.7g"
+
+#define l_mathop(op)		op##f
+
+#define lua_str2number(s,p)	strtof((s), (p))
+
+
+#elif LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE	/* }{ long double */
+
+#define LUA_NUMBER	long double
+
+#define l_mathlim(n)		(LDBL_##n)
+
+#define LUAI_UACNUMBER	long double
+
+#define LUA_NUMBER_FRMLEN	"L"
+#define LUA_NUMBER_FMT		"%.19Lg"
+
+#define l_mathop(op)		op##l
+
+#define lua_str2number(s,p)	strtold((s), (p))
+
+#elif LUA_FLOAT_TYPE == LUA_FLOAT_DOUBLE	/* }{ double */
+
+#define LUA_NUMBER	double
+
+#define l_mathlim(n)		(DBL_##n)
+
+#define LUAI_UACNUMBER	double
+
+#define LUA_NUMBER_FRMLEN	""
+#define LUA_NUMBER_FMT		"%.14g"
+
+#define l_mathop(op)		op
+
+#define lua_str2number(s,p)	strtod((s), (p))
+
+#else						/* }{ */
+
+#error "numeric float type not defined"
+
+#endif					/* } */
+
+
+
+/*
+@@ LUA_INTEGER is the integer type used by Lua.
+**
+@@ LUA_UNSIGNED is the unsigned version of LUA_INTEGER.
+**
+@@ LUAI_UACINT is the result of a 'default argument promotion'
+@@ over a lUA_INTEGER.
+@@ LUA_INTEGER_FRMLEN is the length modifier for reading/writing integers.
+@@ LUA_INTEGER_FMT is the format for writing integers.
+@@ LUA_MAXINTEGER is the maximum value for a LUA_INTEGER.
+@@ LUA_MININTEGER is the minimum value for a LUA_INTEGER.
+@@ lua_integer2str converts an integer to a string.
+*/
+
+
+/* The following definitions are good for most cases here */
+
+#define LUA_INTEGER_FMT		"%" LUA_INTEGER_FRMLEN "d"
+
+#define LUAI_UACINT		LUA_INTEGER
+
+#define lua_integer2str(s,sz,n)  \
+	l_sprintf((s), sz, LUA_INTEGER_FMT, (LUAI_UACINT)(n))
+
+/*
+** use LUAI_UACINT here to avoid problems with promotions (which
+** can turn a comparison between unsigneds into a signed comparison)
+*/
+#define LUA_UNSIGNED		unsigned LUAI_UACINT
+
+
+/* now the variable definitions */
+
+#if LUA_INT_TYPE == LUA_INT_INT		/* { int */
+
+#define LUA_INTEGER		int
+#define LUA_INTEGER_FRMLEN	""
+
+#define LUA_MAXINTEGER		INT_MAX
+#define LUA_MININTEGER		INT_MIN
+
+#elif LUA_INT_TYPE == LUA_INT_LONG	/* }{ long */
+
+#define LUA_INTEGER		long
+#define LUA_INTEGER_FRMLEN	"l"
+
+#define LUA_MAXINTEGER		LONG_MAX
+#define LUA_MININTEGER		LONG_MIN
+
+#elif LUA_INT_TYPE == LUA_INT_LONGLONG	/* }{ long long */
+
+/* use presence of macro LLONG_MAX as proxy for C99 compliance */
+#if defined(LLONG_MAX)		/* { */
+/* use ISO C99 stuff */
+
+#define LUA_INTEGER		long long
+#define LUA_INTEGER_FRMLEN	"ll"
+
+#define LUA_MAXINTEGER		LLONG_MAX
+#define LUA_MININTEGER		LLONG_MIN
+
+#elif defined(LUA_USE_WINDOWS) /* }{ */
+/* in Windows, can use specific Windows types */
+
+#define LUA_INTEGER		__int64
+#define LUA_INTEGER_FRMLEN	"I64"
+
+#define LUA_MAXINTEGER		_I64_MAX
+#define LUA_MININTEGER		_I64_MIN
+
+#else				/* }{ */
+
+#error "Compiler does not support 'long long'. Use option '-DLUA_32BITS' \
+  or '-DLUA_C89_NUMBERS' (see file 'luaconf.h' for details)"
+
+#endif				/* } */
+
+#else				/* }{ */
+
+#error "numeric integer type not defined"
+
+#endif				/* } */
+
+/* }================================================================== */
+
+
+/*
+** {==================================================================
+** Dependencies with C99 and other C details
+** ===================================================================
+*/
+
+/*
+@@ l_sprintf is equivalent to 'snprintf' or 'sprintf' in C89.
+** (All uses in Lua have only one format item.)
+*/
+#if !defined(LUA_USE_C89)
+#define l_sprintf(s,sz,f,i)	snprintf(s,sz,f,i)
+#else
+#define l_sprintf(s,sz,f,i)	((void)(sz), sprintf(s,f,i))
+#endif
+
+
+/*
+@@ lua_strx2number converts an hexadecimal numeric string to a number.
+** In C99, 'strtod' does that conversion. Otherwise, you can
+** leave 'lua_strx2number' undefined and Lua will provide its own
+** implementation.
+*/
+#if !defined(LUA_USE_C89)
+#define lua_strx2number(s,p)		lua_str2number(s,p)
+#endif
+
+
+/*
+@@ lua_pointer2str converts a pointer to a readable string in a
+** non-specified way.
+*/
+#define lua_pointer2str(buff,sz,p)	l_sprintf(buff,sz,"%p",p)
+
+
+/*
+@@ lua_number2strx converts a float to an hexadecimal numeric string.
+** In C99, 'sprintf' (with format specifiers '%a'/'%A') does that.
+** Otherwise, you can leave 'lua_number2strx' undefined and Lua will
+** provide its own implementation.
+*/
+#if !defined(LUA_USE_C89)
+#define lua_number2strx(L,b,sz,f,n)  \
+	((void)L, l_sprintf(b,sz,f,(LUAI_UACNUMBER)(n)))
+#endif
+
+
+/*
+** 'strtof' and 'opf' variants for math functions are not valid in
+** C89. Otherwise, the macro 'HUGE_VALF' is a good proxy for testing the
+** availability of these variants. ('math.h' is already included in
+** all files that use these macros.)
+*/
+#if defined(LUA_USE_C89) || (defined(HUGE_VAL) && !defined(HUGE_VALF))
+#undef l_mathop  /* variants not available */
+#undef lua_str2number
+#define l_mathop(op)		(lua_Number)op  /* no variant */
+#define lua_str2number(s,p)	((lua_Number)strtod((s), (p)))
+#endif
+
+
+/*
+@@ LUA_KCONTEXT is the type of the context ('ctx') for continuation
+** functions.  It must be a numerical type; Lua will use 'intptr_t' if
+** available, otherwise it will use 'ptrdiff_t' (the nearest thing to
+** 'intptr_t' in C89)
+*/
+#define LUA_KCONTEXT	ptrdiff_t
+
+#if !defined(LUA_USE_C89) && defined(__STDC_VERSION__) && \
+    __STDC_VERSION__ >= 199901L
+#include <stdint.h>
+#if defined(INTPTR_MAX)  /* even in C99 this type is optional */
+#undef LUA_KCONTEXT
+#define LUA_KCONTEXT	intptr_t
+#endif
+#endif
+
+
+/*
+@@ lua_getlocaledecpoint gets the locale "radix character" (decimal point).
+** Change that if you do not want to use C locales. (Code using this
+** macro must include header 'locale.h'.)
+*/
+#if !defined(lua_getlocaledecpoint)
+#define lua_getlocaledecpoint()		(localeconv()->decimal_point[0])
+#endif
+
+/* }================================================================== */
+
+
+/*
+** {==================================================================
+** Language Variations
+** =====================================================================
+*/
+
+/*
+@@ LUA_NOCVTN2S/LUA_NOCVTS2N control how Lua performs some
+** coercions. Define LUA_NOCVTN2S to turn off automatic coercion from
+** numbers to strings. Define LUA_NOCVTS2N to turn off automatic
+** coercion from strings to numbers.
+*/
+/* #define LUA_NOCVTN2S */
+/* #define LUA_NOCVTS2N */
+
+
+/*
+@@ LUA_USE_APICHECK turns on several consistency checks on the C API.
+** Define it as a help when debugging C code.
+*/
+#if defined(LUA_USE_APICHECK)
+#include <assert.h>
+#define luai_apicheck(l,e)	assert(e)
+#endif
+
+/* }================================================================== */
+
+
+/*
+** {==================================================================
+** Macros that affect the API and must be stable (that is, must be the
+** same when you compile Lua and when you compile code that links to
+** Lua). You probably do not want/need to change them.
+** =====================================================================
+*/
+
+/*
+@@ LUAI_MAXSTACK limits the size of the Lua stack.
+** CHANGE it if you need a different limit. This limit is arbitrary;
+** its only purpose is to stop Lua from consuming unlimited stack
+** space (and to reserve some numbers for pseudo-indices).
+*/
+#if LUAI_BITSINT >= 32
+#define LUAI_MAXSTACK		1000000
+#else
+#define LUAI_MAXSTACK		15000
+#endif
+
+
+/*
+@@ LUA_EXTRASPACE defines the size of a raw memory area associated with
+** a Lua state with very fast access.
+** CHANGE it if you need a different size.
+*/
+#define LUA_EXTRASPACE		(sizeof(void *))
+
+
+/*
+@@ LUA_IDSIZE gives the maximum size for the description of the source
+@@ of a function in debug information.
+** CHANGE it if you want a different size.
+*/
+#define LUA_IDSIZE	60
+
+
+/*
+@@ LUAL_BUFFERSIZE is the buffer size used by the lauxlib buffer system.
+** CHANGE it if it uses too much C-stack space. (For long double,
+** 'string.format("%.99f", -1e4932)' needs 5034 bytes, so a
+** smaller buffer would force a memory allocation for each call to
+** 'string.format'.)
+*/
+#if LUA_FLOAT_TYPE == LUA_FLOAT_LONGDOUBLE
+#define LUAL_BUFFERSIZE		8192
+#else
+#define LUAL_BUFFERSIZE   ((int)(0x80 * sizeof(void*) * sizeof(lua_Integer)))
+#endif
+
+/* }================================================================== */
+
+
+/*
+@@ LUA_QL describes how error messages quote program elements.
+** Lua does not use these macros anymore; they are here for
+** compatibility only.
+*/
+#define LUA_QL(x)	"'" x "'"
+#define LUA_QS		LUA_QL("%s")
+
+
+
+
+/* =================================================================== */
+
+/*
+** Local configuration. You can use this space to add your redefinitions
+** without modifying the main part of the file.
+*/
+
+
+
+
+
+#endif
+

Libs/lua/lualib.h

@@ -0,0 +1,61 @@
+/*
+** $Id: lualib.h,v 1.45.1.1 2017/04/19 17:20:42 roberto Exp $
+** Lua standard libraries
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef lualib_h
+#define lualib_h
+
+#include "lua.h"
+
+
+/* version suffix for environment variable names */
+#define LUA_VERSUFFIX          "_" LUA_VERSION_MAJOR "_" LUA_VERSION_MINOR
+
+
+LUAMOD_API int (luaopen_base) (lua_State *L);
+
+#define LUA_COLIBNAME	"coroutine"
+LUAMOD_API int (luaopen_coroutine) (lua_State *L);
+
+#define LUA_TABLIBNAME	"table"
+LUAMOD_API int (luaopen_table) (lua_State *L);
+
+#define LUA_IOLIBNAME	"io"
+LUAMOD_API int (luaopen_io) (lua_State *L);
+
+#define LUA_OSLIBNAME	"os"
+LUAMOD_API int (luaopen_os) (lua_State *L);
+
+#define LUA_STRLIBNAME	"string"
+LUAMOD_API int (luaopen_string) (lua_State *L);
+
+#define LUA_UTF8LIBNAME	"utf8"
+LUAMOD_API int (luaopen_utf8) (lua_State *L);
+
+#define LUA_BITLIBNAME	"bit32"
+LUAMOD_API int (luaopen_bit32) (lua_State *L);
+
+#define LUA_MATHLIBNAME	"math"
+LUAMOD_API int (luaopen_math) (lua_State *L);
+
+#define LUA_DBLIBNAME	"debug"
+LUAMOD_API int (luaopen_debug) (lua_State *L);
+
+#define LUA_LOADLIBNAME	"package"
+LUAMOD_API int (luaopen_package) (lua_State *L);
+
+
+/* open all previous libraries */
+LUALIB_API void (luaL_openlibs) (lua_State *L);
+
+
+
+#if !defined(lua_assert)
+#define lua_assert(x)	((void)0)
+#endif
+
+
+#endif

Libs/sol/config.hpp

@@ -0,0 +1,56 @@
+// The MIT License (MIT)
+
+// Copyright (c) 2013-2020 Rapptz, ThePhD and contributors
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// This file was generated with a script.
+// Generated 2020-10-15 05:19:08.645208 UTC
+// This header was generated with sol v3.2.3 (revision e5e6466e)
+// https://github.com/ThePhD/sol2
+
+#ifndef SOL_SINGLE_CONFIG_HPP
+#define SOL_SINGLE_CONFIG_HPP
+
+// beginning of sol/config.hpp
+
+/* Base, empty configuration file!
+
+     To override, place a file in your include paths of the form:
+
+. (your include path here)
+| sol (directory, or equivalent)
+  | config.hpp (your config.hpp file)
+
+     So that when sol2 includes the file
+
+#include <sol/config.hpp>
+
+     it gives you the configuration values you desire. Configuration values can be
+seen in the safety.rst of the doc/src, or at
+https://sol2.readthedocs.io/en/latest/safety.html ! You can also pass them through
+the build system, or the command line options of your compiler.
+
+*/
+
+// Don't error if user scripts give floats where ints are needed; just truncate
+#define SOL_NO_CHECK_NUMBER_PRECISION 1
+
+// end of sol/config.hpp
+
+#endif // SOL_SINGLE_CONFIG_HPP

Libs/sol/forward.hpp

@@ -0,0 +1,889 @@
+// The MIT License (MIT)
+
+// Copyright (c) 2013-2020 Rapptz, ThePhD and contributors
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// This file was generated with a script.
+// Generated 2020-10-15 05:19:08.633139 UTC
+// This header was generated with sol v3.2.3 (revision e5e6466e)
+// https://github.com/ThePhD/sol2
+
+#ifndef SOL_SINGLE_INCLUDE_FORWARD_HPP
+#define SOL_SINGLE_INCLUDE_FORWARD_HPP
+
+// beginning of sol/forward.hpp
+
+#ifndef SOL_FORWARD_HPP
+#define SOL_FORWARD_HPP
+
+// beginning of sol/version.hpp
+
+#include <sol/config.hpp>
+
+#include <cstdint>
+
+#define SOL_VERSION_MAJOR 3
+#define SOL_VERSION_MINOR 2
+#define SOL_VERSION_PATCH 3
+#define SOL_VERSION_STRING "3.2.3"
+#define SOL_VERSION ((SOL_VERSION_MAJOR * 100000) + (SOL_VERSION_MINOR * 100) + (SOL_VERSION_PATCH))
+
+#define SOL_IS_ON(OP_SYMBOL) ((3 OP_SYMBOL 3) != 0)
+#define SOL_IS_OFF(OP_SYMBOL) ((3 OP_SYMBOL 3) == 0)
+#define SOL_IS_DEFAULT_ON(OP_SYMBOL) ((3 OP_SYMBOL 3) > 3)
+#define SOL_IS_DEFAULT_OFF(OP_SYMBOL) ((3 OP_SYMBOL 3 OP_SYMBOL 3) < 0)
+
+#define SOL_ON          |
+#define SOL_OFF         ^
+#define SOL_DEFAULT_ON  +
+#define SOL_DEFAULT_OFF -
+
+#if defined(_MSC_VER)
+	#define SOL_COMPILER_CLANG_I_ SOL_OFF
+	#define SOL_COMPILER_GCC_I_   SOL_OFF
+	#define SOL_COMPILER_EDG_I_   SOL_OFF
+	#define SOL_COMPILER_VCXX_I_  SOL_ON
+#elif defined(__clang__)
+	#define SOL_COMPILER_CLANG_I_ SOL_ON
+	#define SOL_COMPILER_GCC_I_   SOL_OFF
+	#define SOL_COMPILER_EDG_I_   SOL_OFF
+	#define SOL_COMPILER_VCXX_I_  SOL_OFF
+#elif defined(__GNUC__)
+	#define SOL_COMPILER_CLANG_I_ SOL_OFF
+	#define SOL_COMPILER_GCC_I_   SOL_ON
+	#define SOL_COMPILER_EDG_I_   SOL_OFF
+	#define SOL_COMPILER_VCXX_I_  SOL_OFF
+#else
+	#define SOL_COMPILER_CLANG_I_ SOL_OFF
+	#define SOL_COMPILER_GCC_I_   SOL_OFF
+	#define SOL_COMPILER_EDG_I_   SOL_OFF
+	#define SOL_COMPILER_VCXX_I_  SOL_OFF
+#endif
+
+#if defined(__MINGW32__)
+	#define SOL_COMPILER_FRONTEND_MINGW_I_ SOL_ON
+#else
+	#define SOL_COMPILER_FRONTEND_MINGW_I_ SOL_OFF
+#endif
+
+#if SIZE_MAX <= 0xFFFFULL
+	#define SOL_PLATFORM_X16_I_ SOL_ON
+	#define SOL_PLATFORM_X86_I_ SOL_OFF
+	#define SOL_PLATFORM_X64_I_ SOL_OFF
+#elif SIZE_MAX <= 0xFFFFFFFFULL
+	#define SOL_PLATFORM_X16_I_ SOL_OFF
+	#define SOL_PLATFORM_X86_I_ SOL_ON
+	#define SOL_PLATFORM_X64_I_ SOL_OFF
+#else
+	#define SOL_PLATFORM_X16_I_ SOL_OFF
+	#define SOL_PLATFORM_X86_I_ SOL_OFF
+	#define SOL_PLATFORM_X64_I_ SOL_ON
+#endif
+
+#define SOL_PLATFORM_ARM32_I_ SOL_OFF
+#define SOL_PLATFORM_ARM64_I_ SOL_OFF
+
+#if defined(_WIN32)
+	#define SOL_PLATFORM_WINDOWS_I_ SOL_ON
+#else
+	#define SOL_PLATFORM_WINDOWS_I_ SOL_OFF
+#endif
+#if defined(__APPLE__)
+	#define SOL_PLATFORM_APPLE_I_ SOL_ON
+#else
+	#define SOL_PLATFORM_APPLE_I_ SOL_OFF
+#endif
+#if defined(__unix__)
+	#define SOL_PLATFORM_UNIXLIKE_I_ SOL_ON
+#else
+	#define SOL_PLATFORM_UNIXLIKE_I_ SOL_OFF
+#endif
+#if defined(__linux__)
+	#define SOL_PLATFORM_LINUXLIKE_I_ SOL_ON
+#else
+	#define SOL_PLATFORM_LINUXLIKE_I_ SOL_OFF
+#endif
+
+#define SOL_PLATFORM_APPLE_IPHONE_I_ SOL_OFF
+#define SOL_PLATFORM_BSDLIKE_I_      SOL_OFF
+
+#if defined(SOL_IN_DEBUG_DETECTED)
+	#if SOL_IN_DEBUG_DETECTED != 0
+		#define SOL_DEBUG_BUILD_I_ SOL_ON
+	#else
+		#define SOL_DEBUG_BUILD_I_ SOL_OFF
+	#endif
+#elif !defined(NDEBUG)
+	#if SOL_IS_ON(SOL_COMPILER_VCXX_I_) && defined(_DEBUG)
+		#define SOL_DEBUG_BUILD_I_ SOL_ON
+	#elif (SOL_IS_ON(SOL_COMPILER_CLANG_I_) || SOL_IS_ON(SOL_COMPILER_GCC_I_)) && !defined(__OPTIMIZE__)
+		#define SOL_DEBUG_BUILD_I_ SOL_ON
+	#else
+		#define SOL_DEBUG_BUILD_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_DEBUG_BUILD_I_ SOL_DEFAULT_OFF
+#endif // We are in a debug mode of some sort
+
+#if defined(SOL_NO_EXCEPTIONS)
+	#if (SOL_NO_EXCEPTIONS != 0)
+		#define SOL_EXCEPTIONS_I_ SOL_OFF
+	#else
+		#define SOL_EXCEPTIONS_I_ SOL_ON
+	#endif
+#elif SOL_IS_ON(SOL_COMPILER_VCXX_I_)
+	#if !defined(_CPPUNWIND)
+		#define SOL_EXCEPTIONS_I_ SOL_OFF
+	#else
+		#define SOL_EXCEPTIONS_I_ SOL_ON
+	#endif
+#elif SOL_IS_ON(SOL_COMPILER_CLANG_I_) || SOL_IS_ON(SOL_COMPILER_GCC_I_)
+	#if !defined(__EXCEPTIONS)
+		#define SOL_EXCEPTIONS_I_ SOL_OFF
+	#else
+		#define SOL_EXCEPTIONS_I_ SOL_ON
+	#endif
+#else
+	#define SOL_EXCEPTIONS_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_NO_RTTI)
+	#if (SOL_NO_RTTI != 0)
+		#define SOL_RTTI_I_ SOL_OFF
+	#else
+		#define SOL_RTTI_I_ SOL_ON
+	#endif
+#elif SOL_IS_ON(SOL_COMPILER_VCXX_I_)
+	#if !defined(_CPPRTTI)
+		#define SOL_RTTI_I_ SOL_OFF
+	#else
+		#define SOL_RTTI_I_ SOL_ON
+	#endif
+#elif SOL_IS_ON(SOL_COMPILER_CLANG_I_) || SOL_IS_ON(SOL_COMPILER_GCC_I_)
+	#if !defined(__GXX_RTTI)
+		#define SOL_RTTI_I_ SOL_OFF
+	#else
+		#define SOL_RTTI_I_ SOL_ON
+	#endif
+#else
+	#define SOL_RTTI_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_NO_THREAD_LOCAL)
+	#if SOL_NO_THREAD_LOCAL != 0
+		#define SOL_USE_THREAD_LOCAL_I_ SOL_OFF
+	#else
+		#define SOL_USE_THREAD_LOCAL_I_ SOL_ON
+	#endif
+#else
+	#define SOL_USE_THREAD_LOCAL_I_ SOL_DEFAULT_ON
+#endif // thread_local keyword is bjorked on some platforms
+
+#if defined(SOL_ALL_SAFETIES_ON)
+	#if SOL_ALL_SAFETIES_ON != 0
+		#define SOL_ALL_SAFETIES_ON_I_ SOL_ON
+	#else
+		#define SOL_ALL_SAFETIES_ON_I_ SOL_FF
+	#endif
+#else
+	#define SOL_ALL_SAFETIES_ON_I_ SOL_DEFAULT_OFF
+#endif
+
+#if defined(SOL_SAFE_GETTER)
+	#if SOL_SAFE_GETTER != 0
+		#define SOL_SAFE_GETTER_I_ SOL_ON
+	#else
+		#define SOL_SAFE_GETTER_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_GETTER_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_GETTER_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_GETTER_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_SAFE_USERTYPE)
+	#if SOL_SAFE_USERTYPE != 0
+		#define SOL_SAFE_USERTYPE_I_ SOL_ON
+	#else
+		#define SOL_SAFE_USERTYPE_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_USERTYPE_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_USERTYPE_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_USERTYPE_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_SAFE_REFERENCES)
+	#if SOL_SAFE_REFERENCES != 0
+		#define SOL_SAFE_REFERENCES_I_ SOL_ON
+	#else
+		#define SOL_SAFE_REFERENCES_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_REFERENCES_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_REFERENCES_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_REFERENCES_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_SAFE_FUNCTIONS)
+	#if SOL_SAFE_FUNCTIONS != 0
+		#define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_ON
+	#else
+		#define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_OFF
+	#endif
+#elif defined (SOL_SAFE_FUNCTION_OBJECTS)
+	#if SOL_SAFE_FUNCTION_OBJECTS != 0
+		#define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_ON
+	#else
+		#define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_FUNCTION_OBJECTS_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_SAFE_FUNCTION_CALLS)
+	#if SOL_SAFE_FUNCTION_CALLS != 0
+		#define SOL_SAFE_FUNCTION_CALLS_I_ SOL_ON
+	#else
+		#define SOL_SAFE_FUNCTION_CALLS_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_FUNCTION_CALLS_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_FUNCTION_CALLS_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_FUNCTION_CALLS_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_SAFE_PROXIES)
+	#if SOL_SAFE_PROXIES != 0
+		#define SOL_SAFE_PROXIES_I_ SOL_ON
+	#else
+		#define SOL_SAFE_PROXIES_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_PROXIES_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_PROXIES_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_PROXIES_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_SAFE_NUMERICS)
+	#if SOL_SAFE_NUMERICS != 0
+		#define SOL_SAFE_NUMERICS_I_ SOL_ON
+	#else
+		#define SOL_SAFE_NUMERICS_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_NUMERICS_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_NUMERICS_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_NUMERICS_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_SAFE_STACK_CHECK)
+	#if SOL_SAFE_STACK_CHECK != 0
+		#define SOL_SAFE_STACK_CHECK_I_ SOL_ON
+	#else
+		#define SOL_SAFE_STACK_CHECK_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_SAFE_STACK_CHECK_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_SAFE_STACK_CHECK_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_SAFE_STACK_CHECK_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_NO_CHECK_NUMBER_PRECISION)
+	#if SOL_NO_CHECK_NUMBER_PRECISION != 0
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_OFF
+	#else
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_ON
+	#endif
+#elif defined(SOL_NO_CHECKING_NUMBER_PRECISION)
+	#if SOL_NO_CHECKING_NUMBER_PRECISION != 0
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_OFF
+	#else
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_ON
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_SAFE_NUMERICS_I_)
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_NUMBER_PRECISION_CHECKS_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_STRINGS_ARE_NUMBERS)
+	#if (SOL_STRINGS_ARE_NUMBERS != 0)
+		#define SOL_STRINGS_ARE_NUMBERS_I_ SOL_ON
+	#else
+		#define SOL_STRINGS_ARE_NUMBERS_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_STRINGS_ARE_NUMBERS_I_ SOL_DEFAULT_OFF
+#endif
+
+#if defined(SOL_ENABLE_INTEROP)
+	#if SOL_ENABLE_INTEROP != 0
+		#define SOL_USE_INTEROP_I_ SOL_ON
+	#else
+		#define SOL_USE_INTEROP_I_ SOL_OFF
+	#endif
+#elif defined(SOL_USE_INTEROP)
+	#if SOL_USE_INTEROP != 0
+		#define SOL_USE_INTEROP_I_ SOL_ON
+	#else
+		#define SOL_USE_INTEROP_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_USE_INTEROP_I_ SOL_DEFAULT_OFF
+#endif
+
+#if defined(SOL_NO_NIL)
+	#if (SOL_NO_NIL != 0)
+		#define SOL_NIL_I_ SOL_OFF
+	#else
+		#define SOL_NIL_I_ SOL_ON
+	#endif
+#elif defined(__MAC_OS_X_VERSION_MAX_ALLOWED) || defined(__OBJC__) || defined(nil)
+	#define SOL_NIL_I_ SOL_DEFAULT_OFF
+#else
+	#define SOL_NIL_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_USERTYPE_TYPE_BINDING_INFO)
+	#if (SOL_USERTYPE_TYPE_BINDING_INFO != 0)
+		#define SOL_USERTYPE_TYPE_BINDING_INFO_I_ SOL_ON
+	#else
+		#define SOL_USERTYPE_TYPE_BINDING_INFO_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_USERTYPE_TYPE_BINDING_INFO_I_ SOL_DEFAULT_ON
+#endif // We should generate a my_type.__type table with lots of class information for usertypes
+
+#if defined(SOL_AUTOMAGICAL_TYPES_BY_DEFAULT)
+	#if (SOL_AUTOMAGICAL_TYPES_BY_DEFAULT != 0)
+		#define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_ON
+	#else
+		#define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_OFF
+	#endif
+#elif defined(SOL_DEFAULT_AUTOMAGICAL_USERTYPES)
+	#if (SOL_DEFAULT_AUTOMAGICAL_USERTYPES != 0)
+		#define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_ON
+	#else
+		#define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_DEFAULT_AUTOMAGICAL_USERTYPES_I_ SOL_DEFAULT_ON
+#endif // make is_automagical on/off by default
+
+#if defined(SOL_STD_VARIANT)
+	#if (SOL_STD_VARIANT != 0)
+		#define SOL_STD_VARIANT_I_ SOL_ON
+	#else
+		#define SOL_STD_VARIANT_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_COMPILER_CLANG_I_) && SOL_IS_ON(SOL_PLATFORM_APPLE_I_)
+		#if defined(__has_include)
+			#if __has_include(<variant>)
+				#define SOL_STD_VARIANT_I_ SOL_ON
+			#else
+				#define SOL_STD_VARIANT_I_ SOL_OFF
+			#endif
+		#else
+			#define SOL_STD_VARIANT_I_ SOL_OFF
+		#endif
+	#else
+		#define SOL_STD_VARIANT_I_ SOL_DEFAULT_ON
+	#endif
+#endif // make is_automagical on/off by default
+
+#if defined(SOL_NOEXCEPT_FUNCTION_TYPE)
+	#if (SOL_NOEXCEPT_FUNCTION_TYPE != 0)
+		#define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_ON
+	#else
+		#define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_OFF
+	#endif
+#else
+	#if defined(__cpp_noexcept_function_type)
+		#define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_COMPILER_VCXX_I_) && (defined(_MSVC_LANG) && (_MSVC_LANG < 201403L))
+		// There is a bug in the VC++ compiler??
+		// on /std:c++latest under x86 conditions (VS 15.5.2),
+		// compiler errors are tossed for noexcept markings being on function types
+		// that are identical in every other way to their non-noexcept marked types function types...
+		// VS 2019: There is absolutely a bug.
+		#define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_OFF
+	#else
+		#define SOL_USE_NOEXCEPT_FUNCTION_TYPE_I_ SOL_DEFAULT_ON
+	#endif
+#endif // noexcept is part of a function's type
+
+#if defined(SOL_STACK_STRING_OPTIMIZATION_SIZE) && SOL_STACK_STRING_OPTIMIZATION_SIZE > 0
+	#define SOL_OPTIMIZATION_STRING_CONVERSION_STACK_SIZE_I_ SOL_STACK_STRING_OPTIMIZATION_SIZE
+#else
+	#define SOL_OPTIMIZATION_STRING_CONVERSION_STACK_SIZE_I_ 1024
+#endif
+
+#if defined(SOL_ID_SIZE) && SOL_ID_SIZE > 0
+	#define SOL_ID_SIZE_I_ SOL_ID_SIZE
+#else
+	#define SOL_ID_SIZE_I_ 512
+#endif
+
+#if defined(LUA_IDSIZE) && LUA_IDSIZE > 0
+	#define SOL_FILE_ID_SIZE_I_ LUA_IDSIZE
+#elif defined(SOL_ID_SIZE) && SOL_ID_SIZE > 0
+	#define SOL_FILE_ID_SIZE_I_ SOL_FILE_ID_SIZE
+#else
+	#define SOL_FILE_ID_SIZE_I_ 2048
+#endif
+
+#if defined(SOL_PRINT_ERRORS)
+	#if (SOL_PRINT_ERRORS != 0)
+		#define SOL_PRINT_ERRORS_I_ SOL_ON
+	#else
+		#define SOL_PRINT_ERRORS_I_ SOL_OFF
+	#endif
+#else
+	#if SOL_IS_ON(SOL_ALL_SAFETIES_ON_I_)
+		#define SOL_PRINT_ERRORS_I_ SOL_ON
+	#elif SOL_IS_ON(SOL_DEBUG_BUILD_I_)
+		#define SOL_PRINT_ERRORS_I_ SOL_DEFAULT_ON
+	#else
+		#define SOL_PRINT_ERRORS_I_ SOL_OFF
+	#endif
+#endif
+
+#if defined(SOL_DEFAULT_PASS_ON_ERROR)
+	#if (SOL_DEFAULT_PASS_ON_ERROR != 0)
+		#define SOL_DEFAULT_PASS_ON_ERROR_I_ SOL_ON
+	#else
+		#define SOL_DEFAULT_PASS_ON_ERROR_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_DEFAULT_PASS_ON_ERROR_I_ SOL_DEFAULT_OFF
+#endif
+
+#if defined(SOL_USING_CXX_LUA)
+	#if (SOL_USING_CXX_LUA != 0)
+		#define SOL_USE_CXX_LUA_I_ SOL_ON
+	#else
+		#define SOL_USE_CXX_LUA_I_ SOL_OFF
+	#endif
+#elif defined(SOL_USE_CXX_LUA)
+	#if (SOL_USE_CXX_LUA != 0)
+		#define SOL_USE_CXX_LUA_I_ SOL_ON
+	#else
+		#define SOL_USE_CXX_LUA_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_USE_CXX_LUA_I_ SOL_OFF
+#endif
+
+#if defined(SOL_USING_CXX_LUAJIT)
+	#if (SOL_USING_CXX_LUA != 0)
+		#define SOL_USE_CXX_LUAJIT_I_ SOL_ON
+	#else
+		#define SOL_USE_CXX_LUAJIT_I_ SOL_OFF
+	#endif
+#elif defined(SOL_USE_CXX_LUAJIT)
+	#if (SOL_USE_CXX_LUA != 0)
+		#define SOL_USE_CXX_LUAJIT_I_ SOL_ON
+	#else
+		#define SOL_USE_CXX_LUAJIT_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_USE_CXX_LUAJIT_I_ SOL_OFF
+#endif
+
+#if defined(SOL_NO_LUA_HPP)
+	#if (SOL_NO_LUA_HPP != 0)
+		#define SOL_USE_LUA_HPP_I_ SOL_OFF
+	#else
+		#define SOL_USE_LUA_HPP_I_ SOL_ON
+	#endif
+#elif defined(SOL_USING_CXX_LUA)
+	#define SOL_USE_LUA_HPP_I_ SOL_OFF
+#elif defined(__has_include)
+	#if __has_include(<lua.hpp>)
+		#define SOL_USE_LUA_HPP_I_ SOL_ON
+	#else
+		#define SOL_USE_LUA_HPP_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_USE_LUA_HPP_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_CONTAINERS_START)
+	#define SOL_CONTAINER_START_INDEX_I_ SOL_CONTAINERS_START
+#elif defined(SOL_CONTAINERS_START_INDEX)
+	#define SOL_CONTAINER_START_INDEX_I_ SOL_CONTAINERS_START_INDEX
+#elif defined(SOL_CONTAINER_START_INDEX)
+	#define SOL_CONTAINER_START_INDEX_I_ SOL_CONTAINER_START_INDEX
+#else
+	#define SOL_CONTAINER_START_INDEX_I_ 1
+#endif
+
+#if defined (SOL_NO_MEMORY_ALIGNMENT)
+	#if (SOL_NO_MEMORY_ALIGNMENT != 0)
+		#define SOL_ALIGN_MEMORY_I_ SOL_OFF
+	#else
+		#define SOL_ALIGN_MEMORY_I_ SOL_ON
+	#endif
+#else
+	#define SOL_ALIGN_MEMORY_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_USE_BOOST)
+	#if (SOL_USE_BOOST != 0)
+		#define SOL_USE_BOOST_I_ SOL_ON
+	#else
+		#define SOL_USE_BOOST_I_ SOL_OFF
+	#endif
+#else
+		#define SOL_USE_BOOST_I_ SOL_OFF
+#endif
+
+#if defined(SOL_USE_UNSAFE_BASE_LOOKUP)
+	#if (SOL_USE_UNSAFE_BASE_LOOKUP != 0)
+		#define SOL_USE_UNSAFE_BASE_LOOKUP_I_ SOL_ON
+	#else
+		#define SOL_USE_UNSAFE_BASE_LOOKUP_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_USE_UNSAFE_BASE_LOOKUP_I_ SOL_OFF
+#endif
+
+#if defined(SOL_INSIDE_UNREAL)
+	#if (SOL_INSIDE_UNREAL != 0)
+		#define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_ON
+	#else
+		#define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_OFF
+	#endif
+#else
+	#if defined(UE_BUILD_DEBUG) || defined(UE_BUILD_DEVELOPMENT) || defined(UE_BUILD_TEST) || defined(UE_BUILD_SHIPPING) || defined(UE_SERVER)
+		#define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_ON
+	#else
+		#define SOL_INSIDE_UNREAL_ENGINE_I_ SOL_DEFAULT_OFF
+	#endif
+#endif
+
+#if defined(SOL_NO_COMPAT)
+	#if (SOL_NO_COMPAT != 0)
+		#define SOL_USE_COMPATIBILITY_LAYER_I_ SOL_OFF
+	#else
+		#define SOL_USE_COMPATIBILITY_LAYER_I_ SOL_ON
+	#endif
+#else
+	#define SOL_USE_COMPATIBILITY_LAYER_I_ SOL_DEFAULT_ON
+#endif
+
+#if defined(SOL_GET_FUNCTION_POINTER_UNSAFE)
+	#if (SOL_GET_FUNCTION_POINTER_UNSAFE != 0)
+		#define SOL_GET_FUNCTION_POINTER_UNSAFE_I_ SOL_ON
+	#else
+		#define SOL_GET_FUNCTION_POINTER_UNSAFE_I_ SOL_OFF
+	#endif
+#else
+	#define SOL_GET_FUNCTION_POINTER_UNSAFE_I_ SOL_DEFAULT_OFF
+#endif
+
+#if SOL_IS_ON(SOL_COMPILER_FRONTEND_MINGW_I_) && defined(__GNUC__) && (__GNUC__ < 6)
+	// MinGW is off its rocker in some places...
+	#define SOL_MINGW_CCTYPE_IS_POISONED_I_ SOL_ON
+#else
+	#define SOL_MINGW_CCTYPE_IS_POISONED_I_ SOL_DEFAULT_OFF
+#endif
+
+// end of sol/version.hpp
+
+#include <utility>
+#include <type_traits>
+#include <string_view>
+
+#if SOL_IS_ON(SOL_USE_CXX_LUA_I_) || SOL_IS_ON(SOL_USE_CXX_LUAJIT_I_)
+struct lua_State;
+#else
+extern "C" {
+struct lua_State;
+}
+#endif // C++ Mangling for Lua vs. Not
+
+namespace sol {
+
+	enum class type;
+
+	class stateless_reference;
+	template <bool b>
+	class basic_reference;
+	using reference = basic_reference<false>;
+	using main_reference = basic_reference<true>;
+	class stateless_stack_reference;
+	class stack_reference;
+
+	template <typename A>
+	class basic_bytecode;
+
+	struct lua_value;
+
+	struct proxy_base_tag;
+	template <typename>
+	struct proxy_base;
+	template <typename, typename>
+	struct table_proxy;
+
+	template <bool, typename>
+	class basic_table_core;
+	template <bool b>
+	using table_core = basic_table_core<b, reference>;
+	template <bool b>
+	using main_table_core = basic_table_core<b, main_reference>;
+	template <bool b>
+	using stack_table_core = basic_table_core<b, stack_reference>;
+	template <typename base_type>
+	using basic_table = basic_table_core<false, base_type>;
+	using table = table_core<false>;
+	using global_table = table_core<true>;
+	using main_table = main_table_core<false>;
+	using main_global_table = main_table_core<true>;
+	using stack_table = stack_table_core<false>;
+	using stack_global_table = stack_table_core<true>;
+
+	template <typename>
+	struct basic_lua_table;
+	using lua_table = basic_lua_table<reference>;
+	using stack_lua_table = basic_lua_table<stack_reference>;
+
+	template <typename T, typename base_type>
+	class basic_usertype;
+	template <typename T>
+	using usertype = basic_usertype<T, reference>;
+	template <typename T>
+	using stack_usertype = basic_usertype<T, stack_reference>;
+
+	template <typename base_type>
+	class basic_metatable;
+	using metatable = basic_metatable<reference>;
+	using stack_metatable = basic_metatable<stack_reference>;
+
+	template <typename base_t>
+	struct basic_environment;
+	using environment = basic_environment<reference>;
+	using main_environment = basic_environment<main_reference>;
+	using stack_environment = basic_environment<stack_reference>;
+
+	template <typename T, bool>
+	class basic_function;
+	template <typename T, bool, typename H>
+	class basic_protected_function;
+	using unsafe_function = basic_function<reference, false>;
+	using safe_function = basic_protected_function<reference, false, reference>;
+	using main_unsafe_function = basic_function<main_reference, false>;
+	using main_safe_function = basic_protected_function<main_reference, false, reference>;
+	using stack_unsafe_function = basic_function<stack_reference, false>;
+	using stack_safe_function = basic_protected_function<stack_reference, false, reference>;
+	using stack_aligned_unsafe_function = basic_function<stack_reference, true>;
+	using stack_aligned_safe_function = basic_protected_function<stack_reference, true, reference>;
+	using protected_function = safe_function;
+	using main_protected_function = main_safe_function;
+	using stack_protected_function = stack_safe_function;
+	using stack_aligned_protected_function = stack_aligned_safe_function;
+#if SOL_IS_ON(SOL_SAFE_FUNCTION_OBJECTS_I_)
+	using function = protected_function;
+	using main_function = main_protected_function;
+	using stack_function = stack_protected_function;
+	using stack_aligned_function = stack_aligned_safe_function;
+#else
+	using function = unsafe_function;
+	using main_function = main_unsafe_function;
+	using stack_function = stack_unsafe_function;
+	using stack_aligned_function = stack_aligned_unsafe_function;
+#endif
+	using stack_aligned_stack_handler_function = basic_protected_function<stack_reference, true, stack_reference>;
+
+	struct unsafe_function_result;
+	struct protected_function_result;
+	using safe_function_result = protected_function_result;
+#if SOL_IS_ON(SOL_SAFE_FUNCTION_OBJECTS_I_)
+	using function_result = safe_function_result;
+#else
+	using function_result = unsafe_function_result;
+#endif
+
+	template <typename base_t>
+	class basic_object_base;
+	template <typename base_t>
+	class basic_object;
+	template <typename base_t>
+	class basic_userdata;
+	template <typename base_t>
+	class basic_lightuserdata;
+	template <typename base_t>
+	class basic_coroutine;
+	template <typename base_t>
+	class basic_thread;
+
+	using object = basic_object<reference>;
+	using userdata = basic_userdata<reference>;
+	using lightuserdata = basic_lightuserdata<reference>;
+	using thread = basic_thread<reference>;
+	using coroutine = basic_coroutine<reference>;
+	using main_object = basic_object<main_reference>;
+	using main_userdata = basic_userdata<main_reference>;
+	using main_lightuserdata = basic_lightuserdata<main_reference>;
+	using main_coroutine = basic_coroutine<main_reference>;
+	using stack_object = basic_object<stack_reference>;
+	using stack_userdata = basic_userdata<stack_reference>;
+	using stack_lightuserdata = basic_lightuserdata<stack_reference>;
+	using stack_thread = basic_thread<stack_reference>;
+	using stack_coroutine = basic_coroutine<stack_reference>;
+
+	struct stack_proxy_base;
+	struct stack_proxy;
+	struct variadic_args;
+	struct variadic_results;
+	struct stack_count;
+	struct this_state;
+	struct this_main_state;
+	struct this_environment;
+
+	class state_view;
+	class state;
+
+	template <typename T>
+	struct as_table_t;
+	template <typename T>
+	struct as_container_t;
+	template <typename T>
+	struct nested;
+	template <typename T>
+	struct light;
+	template <typename T>
+	struct user;
+	template <typename T>
+	struct as_args_t;
+	template <typename T>
+	struct protect_t;
+	template <typename F, typename... Policies>
+	struct policy_wrapper;
+
+	template <typename T>
+	struct usertype_traits;
+	template <typename T>
+	struct unique_usertype_traits;
+
+	template <typename... Args>
+	struct types {
+		typedef std::make_index_sequence<sizeof...(Args)> indices;
+		static constexpr std::size_t size() {
+			return sizeof...(Args);
+		}
+	};
+
+	template <typename T>
+	struct derive : std::false_type {
+		typedef types<> type;
+	};
+
+	template <typename T>
+	struct base : std::false_type {
+		typedef types<> type;
+	};
+
+	template <typename T>
+	struct weak_derive {
+		static bool value;
+	};
+
+	template <typename T>
+	bool weak_derive<T>::value = false;
+
+	namespace stack {
+		struct record;
+	}
+
+#if SOL_IS_OFF(SOL_USE_BOOST_I_)
+	template <class T>
+	class optional;
+
+	template <class T>
+	class optional<T&>;
+#endif
+
+	using check_handler_type = int(lua_State*, int, type, type, const char*);
+
+} // namespace sol
+
+#define SOL_BASE_CLASSES(T, ...)                       \
+	namespace sol {                                   \
+		template <>                                  \
+		struct base<T> : std::true_type {            \
+			typedef ::sol::types<__VA_ARGS__> type; \
+		};                                           \
+	}                                                 \
+	void a_sol3_detail_function_decl_please_no_collide()
+#define SOL_DERIVED_CLASSES(T, ...)                    \
+	namespace sol {                                   \
+		template <>                                  \
+		struct derive<T> : std::true_type {          \
+			typedef ::sol::types<__VA_ARGS__> type; \
+		};                                           \
+	}                                                 \
+	void a_sol3_detail_function_decl_please_no_collide()
+
+#endif // SOL_FORWARD_HPP
+// end of sol/forward.hpp
+
+#endif // SOL_SINGLE_INCLUDE_FORWARD_HPP

Libs/spdlog/async.h

@@ -0,0 +1,93 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+//
+// Async logging using global thread pool
+// All loggers created here share same global thread pool.
+// Each log message is pushed to a queue along with a shared pointer to the
+// logger.
+// If a logger deleted while having pending messages in the queue, it's actual
+// destruction will defer
+// until all its messages are processed by the thread pool.
+// This is because each message in the queue holds a shared_ptr to the
+// originating logger.
+
+#include <spdlog/async_logger.h>
+#include <spdlog/details/registry.h>
+#include <spdlog/details/thread_pool.h>
+
+#include <memory>
+#include <mutex>
+#include <functional>
+
+namespace spdlog {
+
+namespace details {
+static const size_t default_async_q_size = 8192;
+}
+
+// async logger factory - creates async loggers backed with thread pool.
+// if a global thread pool doesn't already exist, create it with default queue
+// size of 8192 items and single thread.
+template<async_overflow_policy OverflowPolicy = async_overflow_policy::block>
+struct async_factory_impl
+{
+    template<typename Sink, typename... SinkArgs>
+    static std::shared_ptr<async_logger> create(std::string logger_name, SinkArgs &&...args)
+    {
+        auto &registry_inst = details::registry::instance();
+
+        // create global thread pool if not already exists..
+
+        auto &mutex = registry_inst.tp_mutex();
+        std::lock_guard<std::recursive_mutex> tp_lock(mutex);
+        auto tp = registry_inst.get_tp();
+        if (tp == nullptr)
+        {
+            tp = std::make_shared<details::thread_pool>(details::default_async_q_size, 1U);
+            registry_inst.set_tp(tp);
+        }
+
+        auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
+        auto new_logger = std::make_shared<async_logger>(std::move(logger_name), std::move(sink), std::move(tp), OverflowPolicy);
+        registry_inst.initialize_logger(new_logger);
+        return new_logger;
+    }
+};
+
+using async_factory = async_factory_impl<async_overflow_policy::block>;
+using async_factory_nonblock = async_factory_impl<async_overflow_policy::overrun_oldest>;
+
+template<typename Sink, typename... SinkArgs>
+inline std::shared_ptr<spdlog::logger> create_async(std::string logger_name, SinkArgs &&...sink_args)
+{
+    return async_factory::create<Sink>(std::move(logger_name), std::forward<SinkArgs>(sink_args)...);
+}
+
+template<typename Sink, typename... SinkArgs>
+inline std::shared_ptr<spdlog::logger> create_async_nb(std::string logger_name, SinkArgs &&...sink_args)
+{
+    return async_factory_nonblock::create<Sink>(std::move(logger_name), std::forward<SinkArgs>(sink_args)...);
+}
+
+// set global thread pool.
+inline void init_thread_pool(size_t q_size, size_t thread_count, std::function<void()> on_thread_start)
+{
+    auto tp = std::make_shared<details::thread_pool>(q_size, thread_count, on_thread_start);
+    details::registry::instance().set_tp(std::move(tp));
+}
+
+// set global thread pool.
+inline void init_thread_pool(size_t q_size, size_t thread_count)
+{
+    init_thread_pool(q_size, thread_count, [] {});
+}
+
+// get the global thread pool.
+inline std::shared_ptr<spdlog::details::thread_pool> thread_pool()
+{
+    return details::registry::instance().get_tp();
+}
+} // namespace spdlog

Libs/spdlog/async_logger-inl.h

@@ -0,0 +1,92 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/async_logger.h>
+#endif
+
+#include <spdlog/sinks/sink.h>
+#include <spdlog/details/thread_pool.h>
+
+#include <memory>
+#include <string>
+
+SPDLOG_INLINE spdlog::async_logger::async_logger(
+    std::string logger_name, sinks_init_list sinks_list, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
+    : async_logger(std::move(logger_name), sinks_list.begin(), sinks_list.end(), std::move(tp), overflow_policy)
+{}
+
+SPDLOG_INLINE spdlog::async_logger::async_logger(
+    std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp, async_overflow_policy overflow_policy)
+    : async_logger(std::move(logger_name), {std::move(single_sink)}, std::move(tp), overflow_policy)
+{}
+
+// send the log message to the thread pool
+SPDLOG_INLINE void spdlog::async_logger::sink_it_(const details::log_msg &msg)
+{
+    if (auto pool_ptr = thread_pool_.lock())
+    {
+        pool_ptr->post_log(shared_from_this(), msg, overflow_policy_);
+    }
+    else
+    {
+        throw_spdlog_ex("async log: thread pool doesn't exist anymore");
+    }
+}
+
+// send flush request to the thread pool
+SPDLOG_INLINE void spdlog::async_logger::flush_()
+{
+    if (auto pool_ptr = thread_pool_.lock())
+    {
+        pool_ptr->post_flush(shared_from_this(), overflow_policy_);
+    }
+    else
+    {
+        throw_spdlog_ex("async flush: thread pool doesn't exist anymore");
+    }
+}
+
+//
+// backend functions - called from the thread pool to do the actual job
+//
+SPDLOG_INLINE void spdlog::async_logger::backend_sink_it_(const details::log_msg &msg)
+{
+    for (auto &sink : sinks_)
+    {
+        if (sink->should_log(msg.level))
+        {
+            SPDLOG_TRY
+            {
+                sink->log(msg);
+            }
+            SPDLOG_LOGGER_CATCH()
+        }
+    }
+
+    if (should_flush_(msg))
+    {
+        backend_flush_();
+    }
+}
+
+SPDLOG_INLINE void spdlog::async_logger::backend_flush_()
+{
+    for (auto &sink : sinks_)
+    {
+        SPDLOG_TRY
+        {
+            sink->flush();
+        }
+        SPDLOG_LOGGER_CATCH()
+    }
+}
+
+SPDLOG_INLINE std::shared_ptr<spdlog::logger> spdlog::async_logger::clone(std::string new_name)
+{
+    auto cloned = std::make_shared<spdlog::async_logger>(*this);
+    cloned->name_ = std::move(new_name);
+    return cloned;
+}

Libs/spdlog/async_logger.h

@@ -0,0 +1,68 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+// Fast asynchronous logger.
+// Uses pre allocated queue.
+// Creates a single back thread to pop messages from the queue and log them.
+//
+// Upon each log write the logger:
+//    1. Checks if its log level is enough to log the message
+//    2. Push a new copy of the message to a queue (or block the caller until
+//    space is available in the queue)
+// Upon destruction, logs all remaining messages in the queue before
+// destructing..
+
+#include <spdlog/logger.h>
+
+namespace spdlog {
+
+// Async overflow policy - block by default.
+enum class async_overflow_policy
+{
+    block,         // Block until message can be enqueued
+    overrun_oldest // Discard oldest message in the queue if full when trying to
+                   // add new item.
+};
+
+namespace details {
+class thread_pool;
+}
+
+class SPDLOG_API async_logger final : public std::enable_shared_from_this<async_logger>, public logger
+{
+    friend class details::thread_pool;
+
+public:
+    template<typename It>
+    async_logger(std::string logger_name, It begin, It end, std::weak_ptr<details::thread_pool> tp,
+        async_overflow_policy overflow_policy = async_overflow_policy::block)
+        : logger(std::move(logger_name), begin, end)
+        , thread_pool_(std::move(tp))
+        , overflow_policy_(overflow_policy)
+    {}
+
+    async_logger(std::string logger_name, sinks_init_list sinks_list, std::weak_ptr<details::thread_pool> tp,
+        async_overflow_policy overflow_policy = async_overflow_policy::block);
+
+    async_logger(std::string logger_name, sink_ptr single_sink, std::weak_ptr<details::thread_pool> tp,
+        async_overflow_policy overflow_policy = async_overflow_policy::block);
+
+    std::shared_ptr<logger> clone(std::string new_name) override;
+
+protected:
+    void sink_it_(const details::log_msg &msg) override;
+    void flush_() override;
+    void backend_sink_it_(const details::log_msg &incoming_log_msg);
+    void backend_flush_();
+
+private:
+    std::weak_ptr<details::thread_pool> thread_pool_;
+    async_overflow_policy overflow_policy_;
+};
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "async_logger-inl.h"
+#endif

Libs/spdlog/cfg/argv.h

@@ -0,0 +1,44 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+#include <spdlog/cfg/helpers.h>
+#include <spdlog/details/registry.h>
+
+//
+// Init log levels using each argv entry that starts with "SPDLOG_LEVEL="
+//
+// set all loggers to debug level:
+// example.exe "SPDLOG_LEVEL=debug"
+
+// set logger1 to trace level
+// example.exe "SPDLOG_LEVEL=logger1=trace"
+
+// turn off all logging except for logger1 and logger2:
+// example.exe "SPDLOG_LEVEL=off,logger1=debug,logger2=info"
+
+namespace spdlog {
+namespace cfg {
+
+// search for SPDLOG_LEVEL= in the args and use it to init the levels
+inline void load_argv_levels(int argc, const char **argv)
+{
+    const std::string spdlog_level_prefix = "SPDLOG_LEVEL=";
+    for (int i = 1; i < argc; i++)
+    {
+        std::string arg = argv[i];
+        if (arg.find(spdlog_level_prefix) == 0)
+        {
+            auto levels_string = arg.substr(spdlog_level_prefix.size());
+            helpers::load_levels(levels_string);
+        }
+    }
+}
+
+inline void load_argv_levels(int argc, char **argv)
+{
+    load_argv_levels(argc, const_cast<const char **>(argv));
+}
+
+} // namespace cfg
+} // namespace spdlog

Libs/spdlog/cfg/env.h

@@ -0,0 +1,38 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+#include <spdlog/cfg/helpers.h>
+#include <spdlog/details/registry.h>
+#include <spdlog/details/os.h>
+
+//
+// Init levels and patterns from env variables SPDLOG_LEVEL
+// Inspired from Rust's "env_logger" crate (https://crates.io/crates/env_logger).
+// Note - fallback to "info" level on unrecognized levels
+//
+// Examples:
+//
+// set global level to debug:
+// export SPDLOG_LEVEL=debug
+//
+// turn off all logging except for logger1:
+// export SPDLOG_LEVEL="*=off,logger1=debug"
+//
+
+// turn off all logging except for logger1 and logger2:
+// export SPDLOG_LEVEL="off,logger1=debug,logger2=info"
+
+namespace spdlog {
+namespace cfg {
+inline void load_env_levels()
+{
+    auto env_val = details::os::getenv("SPDLOG_LEVEL");
+    if (!env_val.empty())
+    {
+        helpers::load_levels(env_val);
+    }
+}
+
+} // namespace cfg
+} // namespace spdlog

Libs/spdlog/cfg/helpers-inl.h

@@ -0,0 +1,120 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/cfg/helpers.h>
+#endif
+
+#include <spdlog/spdlog.h>
+#include <spdlog/details/os.h>
+#include <spdlog/details/registry.h>
+
+#include <algorithm>
+#include <string>
+#include <utility>
+#include <sstream>
+
+namespace spdlog {
+namespace cfg {
+namespace helpers {
+
+// inplace convert to lowercase
+inline std::string &to_lower_(std::string &str)
+{
+    std::transform(
+        str.begin(), str.end(), str.begin(), [](char ch) { return static_cast<char>((ch >= 'A' && ch <= 'Z') ? ch + ('a' - 'A') : ch); });
+    return str;
+}
+
+// inplace trim spaces
+inline std::string &trim_(std::string &str)
+{
+    const char *spaces = " \n\r\t";
+    str.erase(str.find_last_not_of(spaces) + 1);
+    str.erase(0, str.find_first_not_of(spaces));
+    return str;
+}
+
+// return (name,value) trimmed pair from given "name=value" string.
+// return empty string on missing parts
+// "key=val" => ("key", "val")
+// " key  =  val " => ("key", "val")
+// "key=" => ("key", "")
+// "val" => ("", "val")
+
+inline std::pair<std::string, std::string> extract_kv_(char sep, const std::string &str)
+{
+    auto n = str.find(sep);
+    std::string k, v;
+    if (n == std::string::npos)
+    {
+        v = str;
+    }
+    else
+    {
+        k = str.substr(0, n);
+        v = str.substr(n + 1);
+    }
+    return std::make_pair(trim_(k), trim_(v));
+}
+
+// return vector of key/value pairs from sequence of "K1=V1,K2=V2,.."
+// "a=AAA,b=BBB,c=CCC,.." => {("a","AAA"),("b","BBB"),("c", "CCC"),...}
+inline std::unordered_map<std::string, std::string> extract_key_vals_(const std::string &str)
+{
+    std::string token;
+    std::istringstream token_stream(str);
+    std::unordered_map<std::string, std::string> rv{};
+    while (std::getline(token_stream, token, ','))
+    {
+        if (token.empty())
+        {
+            continue;
+        }
+        auto kv = extract_kv_('=', token);
+        rv[kv.first] = kv.second;
+    }
+    return rv;
+}
+
+SPDLOG_INLINE void load_levels(const std::string &input)
+{
+    if (input.empty() || input.size() > 512)
+    {
+        return;
+    }
+
+    auto key_vals = extract_key_vals_(input);
+    std::unordered_map<std::string, level::level_enum> levels;
+    level::level_enum global_level = level::info;
+    bool global_level_found = false;
+
+    for (auto &name_level : key_vals)
+    {
+        auto &logger_name = name_level.first;
+        auto level_name = to_lower_(name_level.second);
+        auto level = level::from_str(level_name);
+        // ignore unrecognized level names
+        if (level == level::off && level_name != "off")
+        {
+            continue;
+        }
+        if (logger_name.empty()) // no logger name indicate global level
+        {
+            global_level_found = true;
+            global_level = level;
+        }
+        else
+        {
+            levels[logger_name] = level;
+        }
+    }
+
+    details::registry::instance().set_levels(std::move(levels), global_level_found ? &global_level : nullptr);
+}
+
+} // namespace helpers
+} // namespace cfg
+} // namespace spdlog

Libs/spdlog/cfg/helpers.h

@@ -0,0 +1,29 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <unordered_map>
+
+namespace spdlog {
+namespace cfg {
+namespace helpers {
+//
+// Init levels from given string
+//
+// Examples:
+//
+// set global level to debug: "debug"
+// turn off all logging except for logger1: "off,logger1=debug"
+// turn off all logging except for logger1 and logger2: "off,logger1=debug,logger2=info"
+//
+SPDLOG_API void load_levels(const std::string &txt);
+} // namespace helpers
+
+} // namespace cfg
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "helpers-inl.h"
+#endif // SPDLOG_HEADER_ONLY

Libs/spdlog/common-inl.h

@@ -0,0 +1,78 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/common.h>
+#endif
+
+#include <algorithm>
+#include <iterator>
+
+namespace spdlog {
+namespace level {
+
+#if __cplusplus >= 201703L
+constexpr
+#endif
+    static string_view_t level_string_views[] SPDLOG_LEVEL_NAMES;
+
+static const char *short_level_names[] SPDLOG_SHORT_LEVEL_NAMES;
+
+SPDLOG_INLINE const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT
+{
+    return level_string_views[l];
+}
+
+SPDLOG_INLINE const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT
+{
+    return short_level_names[l];
+}
+
+SPDLOG_INLINE spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT
+{
+    auto it = std::find(std::begin(level_string_views), std::end(level_string_views), name);
+    if (it != std::end(level_string_views))
+        return static_cast<level::level_enum>(std::distance(std::begin(level_string_views), it));
+
+    // check also for "warn" and "err" before giving up..
+    if (name == "warn")
+    {
+        return level::warn;
+    }
+    if (name == "err")
+    {
+        return level::err;
+    }
+    return level::off;
+}
+} // namespace level
+
+SPDLOG_INLINE spdlog_ex::spdlog_ex(std::string msg)
+    : msg_(std::move(msg))
+{}
+
+SPDLOG_INLINE spdlog_ex::spdlog_ex(const std::string &msg, int last_errno)
+{
+    memory_buf_t outbuf;
+    fmt::format_system_error(outbuf, last_errno, msg.c_str());
+    msg_ = fmt::to_string(outbuf);
+}
+
+SPDLOG_INLINE const char *spdlog_ex::what() const SPDLOG_NOEXCEPT
+{
+    return msg_.c_str();
+}
+
+SPDLOG_INLINE void throw_spdlog_ex(const std::string &msg, int last_errno)
+{
+    SPDLOG_THROW(spdlog_ex(msg, last_errno));
+}
+
+SPDLOG_INLINE void throw_spdlog_ex(std::string msg)
+{
+    SPDLOG_THROW(spdlog_ex(std::move(msg)));
+}
+
+} // namespace spdlog

Libs/spdlog/common.h

@@ -0,0 +1,279 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/tweakme.h>
+#include <spdlog/details/null_mutex.h>
+
+#include <atomic>
+#include <chrono>
+#include <initializer_list>
+#include <memory>
+#include <exception>
+#include <string>
+#include <type_traits>
+#include <functional>
+
+#ifdef SPDLOG_COMPILED_LIB
+#    undef SPDLOG_HEADER_ONLY
+#    if defined(_WIN32) && defined(SPDLOG_SHARED_LIB)
+#        ifdef spdlog_EXPORTS
+#            define SPDLOG_API __declspec(dllexport)
+#        else
+#            define SPDLOG_API __declspec(dllimport)
+#        endif
+#    else // !defined(_WIN32) || !defined(SPDLOG_SHARED_LIB)
+#        define SPDLOG_API
+#    endif
+#    define SPDLOG_INLINE
+#else // !defined(SPDLOG_COMPILED_LIB)
+#    define SPDLOG_API
+#    define SPDLOG_HEADER_ONLY
+#    define SPDLOG_INLINE inline
+#endif // #ifdef SPDLOG_COMPILED_LIB
+
+#include <spdlog/fmt/fmt.h>
+
+// backward compatibility with fmt versions older than 8
+#if FMT_VERSION >= 80000
+#    define SPDLOG_FMT_RUNTIME(format_string) fmt::runtime(format_string)
+#    if defined(SPDLOG_WCHAR_FILENAMES) || defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT)
+#        include <spdlog/fmt/xchar.h>
+#    endif
+#else
+#    define SPDLOG_FMT_RUNTIME(format_string) format_string
+#endif
+
+// visual studio upto 2013 does not support noexcept nor constexpr
+#if defined(_MSC_VER) && (_MSC_VER < 1900)
+#    define SPDLOG_NOEXCEPT _NOEXCEPT
+#    define SPDLOG_CONSTEXPR
+#else
+#    define SPDLOG_NOEXCEPT noexcept
+#    define SPDLOG_CONSTEXPR constexpr
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#    define SPDLOG_DEPRECATED __attribute__((deprecated))
+#elif defined(_MSC_VER)
+#    define SPDLOG_DEPRECATED __declspec(deprecated)
+#else
+#    define SPDLOG_DEPRECATED
+#endif
+
+// disable thread local on msvc 2013
+#ifndef SPDLOG_NO_TLS
+#    if (defined(_MSC_VER) && (_MSC_VER < 1900)) || defined(__cplusplus_winrt)
+#        define SPDLOG_NO_TLS 1
+#    endif
+#endif
+
+#ifndef SPDLOG_FUNCTION
+#    define SPDLOG_FUNCTION static_cast<const char *>(__FUNCTION__)
+#endif
+
+#ifdef SPDLOG_NO_EXCEPTIONS
+#    define SPDLOG_TRY
+#    define SPDLOG_THROW(ex)                                                                                                               \
+        do                                                                                                                                 \
+        {                                                                                                                                  \
+            printf("spdlog fatal error: %s\n", ex.what());                                                                                 \
+            std::abort();                                                                                                                  \
+        } while (0)
+#    define SPDLOG_CATCH_STD
+#else
+#    define SPDLOG_TRY try
+#    define SPDLOG_THROW(ex) throw(ex)
+#    define SPDLOG_CATCH_STD                                                                                                               \
+        catch (const std::exception &) {}
+#endif
+
+namespace spdlog {
+
+class formatter;
+
+namespace sinks {
+class sink;
+}
+
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+using filename_t = std::wstring;
+// allow macro expansion to occur in SPDLOG_FILENAME_T
+#    define SPDLOG_FILENAME_T_INNER(s) L##s
+#    define SPDLOG_FILENAME_T(s) SPDLOG_FILENAME_T_INNER(s)
+#else
+using filename_t = std::string;
+#    define SPDLOG_FILENAME_T(s) s
+#endif
+
+using log_clock = std::chrono::system_clock;
+using sink_ptr = std::shared_ptr<sinks::sink>;
+using sinks_init_list = std::initializer_list<sink_ptr>;
+using err_handler = std::function<void(const std::string &err_msg)>;
+using string_view_t = fmt::basic_string_view<char>;
+using wstring_view_t = fmt::basic_string_view<wchar_t>;
+using memory_buf_t = fmt::basic_memory_buffer<char, 250>;
+using wmemory_buf_t = fmt::basic_memory_buffer<wchar_t, 250>;
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+#    ifndef _WIN32
+#        error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
+#    else
+template<typename T>
+struct is_convertible_to_wstring_view : std::is_convertible<T, wstring_view_t>
+{};
+template<class T>
+struct is_convertible_to_wformat_string : std::is_convertible<T, fmt::wformat_string<>>
+{};
+#    endif // _WIN32
+#else
+template<typename>
+struct is_convertible_to_wstring_view : std::false_type
+{};
+template<class>
+struct is_convertible_to_wformat_string : std::false_type
+{};
+#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+
+template<class T>
+struct is_convertible_to_basic_format_string
+    : std::integral_constant<bool, std::is_convertible<const T &, fmt::format_string<>>::value || is_convertible_to_wformat_string<T>::value>
+{};
+
+#if defined(SPDLOG_NO_ATOMIC_LEVELS)
+using level_t = details::null_atomic_int;
+#else
+using level_t = std::atomic<int>;
+#endif
+
+#define SPDLOG_LEVEL_TRACE 0
+#define SPDLOG_LEVEL_DEBUG 1
+#define SPDLOG_LEVEL_INFO 2
+#define SPDLOG_LEVEL_WARN 3
+#define SPDLOG_LEVEL_ERROR 4
+#define SPDLOG_LEVEL_CRITICAL 5
+#define SPDLOG_LEVEL_OFF 6
+
+#if !defined(SPDLOG_ACTIVE_LEVEL)
+#    define SPDLOG_ACTIVE_LEVEL SPDLOG_LEVEL_INFO
+#endif
+
+// Log level enum
+namespace level {
+enum level_enum
+{
+    trace = SPDLOG_LEVEL_TRACE,
+    debug = SPDLOG_LEVEL_DEBUG,
+    info = SPDLOG_LEVEL_INFO,
+    warn = SPDLOG_LEVEL_WARN,
+    err = SPDLOG_LEVEL_ERROR,
+    critical = SPDLOG_LEVEL_CRITICAL,
+    off = SPDLOG_LEVEL_OFF,
+    n_levels
+};
+
+#define SPDLOG_LEVEL_NAME_TRACE spdlog::string_view_t("trace", 5)
+#define SPDLOG_LEVEL_NAME_DEBUG spdlog::string_view_t("debug", 5)
+#define SPDLOG_LEVEL_NAME_INFO spdlog::string_view_t("info", 4)
+#define SPDLOG_LEVEL_NAME_WARNING spdlog::string_view_t("warning", 7)
+#define SPDLOG_LEVEL_NAME_ERROR spdlog::string_view_t("error", 5)
+#define SPDLOG_LEVEL_NAME_CRITICAL spdlog::string_view_t("critical", 8)
+#define SPDLOG_LEVEL_NAME_OFF spdlog::string_view_t("off", 3)
+
+#if !defined(SPDLOG_LEVEL_NAMES)
+#    define SPDLOG_LEVEL_NAMES                                                                                                             \
+        {                                                                                                                                  \
+            SPDLOG_LEVEL_NAME_TRACE, SPDLOG_LEVEL_NAME_DEBUG, SPDLOG_LEVEL_NAME_INFO, SPDLOG_LEVEL_NAME_WARNING, SPDLOG_LEVEL_NAME_ERROR,  \
+                SPDLOG_LEVEL_NAME_CRITICAL, SPDLOG_LEVEL_NAME_OFF                                                                          \
+        }
+#endif
+
+#if !defined(SPDLOG_SHORT_LEVEL_NAMES)
+
+#    define SPDLOG_SHORT_LEVEL_NAMES                                                                                                       \
+        {                                                                                                                                  \
+            "T", "D", "I", "W", "E", "C", "O"                                                                                              \
+        }
+#endif
+
+SPDLOG_API const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
+SPDLOG_API const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
+SPDLOG_API spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT;
+
+} // namespace level
+
+//
+// Color mode used by sinks with color support.
+//
+enum class color_mode
+{
+    always,
+    automatic,
+    never
+};
+
+//
+// Pattern time - specific time getting to use for pattern_formatter.
+// local time by default
+//
+enum class pattern_time_type
+{
+    local, // log localtime
+    utc    // log utc
+};
+
+//
+// Log exception
+//
+class SPDLOG_API spdlog_ex : public std::exception
+{
+public:
+    explicit spdlog_ex(std::string msg);
+    spdlog_ex(const std::string &msg, int last_errno);
+    const char *what() const SPDLOG_NOEXCEPT override;
+
+private:
+    std::string msg_;
+};
+
+[[noreturn]] SPDLOG_API void throw_spdlog_ex(const std::string &msg, int last_errno);
+[[noreturn]] SPDLOG_API void throw_spdlog_ex(std::string msg);
+
+struct source_loc
+{
+    SPDLOG_CONSTEXPR source_loc() = default;
+    SPDLOG_CONSTEXPR source_loc(const char *filename_in, int line_in, const char *funcname_in)
+        : filename{filename_in}
+        , line{line_in}
+        , funcname{funcname_in}
+    {}
+
+    SPDLOG_CONSTEXPR bool empty() const SPDLOG_NOEXCEPT
+    {
+        return line == 0;
+    }
+    const char *filename{nullptr};
+    int line{0};
+    const char *funcname{nullptr};
+};
+
+namespace details {
+// make_unique support for pre c++14
+
+#if __cplusplus >= 201402L // C++14 and beyond
+using std::make_unique;
+#else
+template<typename T, typename... Args>
+std::unique_ptr<T> make_unique(Args &&...args)
+{
+    static_assert(!std::is_array<T>::value, "arrays not supported");
+    return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
+}
+#endif
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "common-inl.h"
+#endif

Libs/spdlog/details/backtracer-inl.h

@@ -0,0 +1,69 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/backtracer.h>
+#endif
+namespace spdlog {
+namespace details {
+SPDLOG_INLINE backtracer::backtracer(const backtracer &other)
+{
+    std::lock_guard<std::mutex> lock(other.mutex_);
+    enabled_ = other.enabled();
+    messages_ = other.messages_;
+}
+
+SPDLOG_INLINE backtracer::backtracer(backtracer &&other) SPDLOG_NOEXCEPT
+{
+    std::lock_guard<std::mutex> lock(other.mutex_);
+    enabled_ = other.enabled();
+    messages_ = std::move(other.messages_);
+}
+
+SPDLOG_INLINE backtracer &backtracer::operator=(backtracer other)
+{
+    std::lock_guard<std::mutex> lock(mutex_);
+    enabled_ = other.enabled();
+    messages_ = std::move(other.messages_);
+    return *this;
+}
+
+SPDLOG_INLINE void backtracer::enable(size_t size)
+{
+    std::lock_guard<std::mutex> lock{mutex_};
+    enabled_.store(true, std::memory_order_relaxed);
+    messages_ = circular_q<log_msg_buffer>{size};
+}
+
+SPDLOG_INLINE void backtracer::disable()
+{
+    std::lock_guard<std::mutex> lock{mutex_};
+    enabled_.store(false, std::memory_order_relaxed);
+}
+
+SPDLOG_INLINE bool backtracer::enabled() const
+{
+    return enabled_.load(std::memory_order_relaxed);
+}
+
+SPDLOG_INLINE void backtracer::push_back(const log_msg &msg)
+{
+    std::lock_guard<std::mutex> lock{mutex_};
+    messages_.push_back(log_msg_buffer{msg});
+}
+
+// pop all items in the q and apply the given fun on each of them.
+SPDLOG_INLINE void backtracer::foreach_pop(std::function<void(const details::log_msg &)> fun)
+{
+    std::lock_guard<std::mutex> lock{mutex_};
+    while (!messages_.empty())
+    {
+        auto &front_msg = messages_.front();
+        fun(front_msg);
+        messages_.pop_front();
+    }
+}
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/backtracer.h

@@ -0,0 +1,45 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/details/log_msg_buffer.h>
+#include <spdlog/details/circular_q.h>
+
+#include <atomic>
+#include <mutex>
+#include <functional>
+
+// Store log messages in circular buffer.
+// Useful for storing debug data in case of error/warning happens.
+
+namespace spdlog {
+namespace details {
+class SPDLOG_API backtracer
+{
+    mutable std::mutex mutex_;
+    std::atomic<bool> enabled_{false};
+    circular_q<log_msg_buffer> messages_;
+
+public:
+    backtracer() = default;
+    backtracer(const backtracer &other);
+
+    backtracer(backtracer &&other) SPDLOG_NOEXCEPT;
+    backtracer &operator=(backtracer other);
+
+    void enable(size_t size);
+    void disable();
+    bool enabled() const;
+    void push_back(const log_msg &msg);
+
+    // pop all items in the q and apply the given fun on each of them.
+    void foreach_pop(std::function<void(const details::log_msg &)> fun);
+};
+
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "backtracer-inl.h"
+#endif

Libs/spdlog/details/circular_q.h

@@ -0,0 +1,141 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+// circular q view of std::vector.
+#pragma once
+
+#include <vector>
+#include <cassert>
+
+namespace spdlog {
+namespace details {
+template<typename T>
+class circular_q
+{
+    size_t max_items_ = 0;
+    typename std::vector<T>::size_type head_ = 0;
+    typename std::vector<T>::size_type tail_ = 0;
+    size_t overrun_counter_ = 0;
+    std::vector<T> v_;
+
+public:
+    using value_type = T;
+
+    // empty ctor - create a disabled queue with no elements allocated at all
+    circular_q() = default;
+
+    explicit circular_q(size_t max_items)
+        : max_items_(max_items + 1) // one item is reserved as marker for full q
+        , v_(max_items_)
+    {}
+
+    circular_q(const circular_q &) = default;
+    circular_q &operator=(const circular_q &) = default;
+
+    // move cannot be default,
+    // since we need to reset head_, tail_, etc to zero in the moved object
+    circular_q(circular_q &&other) SPDLOG_NOEXCEPT
+    {
+        copy_moveable(std::move(other));
+    }
+
+    circular_q &operator=(circular_q &&other) SPDLOG_NOEXCEPT
+    {
+        copy_moveable(std::move(other));
+        return *this;
+    }
+
+    // push back, overrun (oldest) item if no room left
+    void push_back(T &&item)
+    {
+        if (max_items_ > 0)
+        {
+            v_[tail_] = std::move(item);
+            tail_ = (tail_ + 1) % max_items_;
+
+            if (tail_ == head_) // overrun last item if full
+            {
+                head_ = (head_ + 1) % max_items_;
+                ++overrun_counter_;
+            }
+        }
+    }
+
+    // Return reference to the front item.
+    // If there are no elements in the container, the behavior is undefined.
+    const T &front() const
+    {
+        return v_[head_];
+    }
+
+    T &front()
+    {
+        return v_[head_];
+    }
+
+    // Return number of elements actually stored
+    size_t size() const
+    {
+        if (tail_ >= head_)
+        {
+            return tail_ - head_;
+        }
+        else
+        {
+            return max_items_ - (head_ - tail_);
+        }
+    }
+
+    // Return const reference to item by index.
+    // If index is out of range 0…size()-1, the behavior is undefined.
+    const T &at(size_t i) const
+    {
+        assert(i < size());
+        return v_[(head_ + i) % max_items_];
+    }
+
+    // Pop item from front.
+    // If there are no elements in the container, the behavior is undefined.
+    void pop_front()
+    {
+        head_ = (head_ + 1) % max_items_;
+    }
+
+    bool empty() const
+    {
+        return tail_ == head_;
+    }
+
+    bool full() const
+    {
+        // head is ahead of the tail by 1
+        if (max_items_ > 0)
+        {
+            return ((tail_ + 1) % max_items_) == head_;
+        }
+        return false;
+    }
+
+    size_t overrun_counter() const
+    {
+        return overrun_counter_;
+    }
+
+private:
+    // copy from other&& and reset it to disabled state
+    void copy_moveable(circular_q &&other) SPDLOG_NOEXCEPT
+    {
+        max_items_ = other.max_items_;
+        head_ = other.head_;
+        tail_ = other.tail_;
+        overrun_counter_ = other.overrun_counter_;
+        v_ = std::move(other.v_);
+
+        // put &&other in disabled, but valid state
+        other.max_items_ = 0;
+        other.head_ = other.tail_ = 0;
+        other.overrun_counter_ = 0;
+    }
+};
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/console_globals.h

@@ -0,0 +1,32 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/details/null_mutex.h>
+#include <mutex>
+
+namespace spdlog {
+namespace details {
+
+struct console_mutex
+{
+    using mutex_t = std::mutex;
+    static mutex_t &mutex()
+    {
+        static mutex_t s_mutex;
+        return s_mutex;
+    }
+};
+
+struct console_nullmutex
+{
+    using mutex_t = null_mutex;
+    static mutex_t &mutex()
+    {
+        static mutex_t s_mutex;
+        return s_mutex;
+    }
+};
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/file_helper-inl.h

@@ -0,0 +1,147 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/file_helper.h>
+#endif
+
+#include <spdlog/details/os.h>
+#include <spdlog/common.h>
+
+#include <cerrno>
+#include <chrono>
+#include <cstdio>
+#include <string>
+#include <thread>
+#include <tuple>
+
+namespace spdlog {
+namespace details {
+
+SPDLOG_INLINE file_helper::~file_helper()
+{
+    close();
+}
+
+SPDLOG_INLINE void file_helper::open(const filename_t &fname, bool truncate)
+{
+    close();
+    filename_ = fname;
+
+    auto *mode = SPDLOG_FILENAME_T("ab");
+    auto *trunc_mode = SPDLOG_FILENAME_T("wb");
+
+    for (int tries = 0; tries < open_tries_; ++tries)
+    {
+        // create containing folder if not exists already.
+        os::create_dir(os::dir_name(fname));
+        if (truncate)
+        {
+            // Truncate by opening-and-closing a tmp file in "wb" mode, always
+            // opening the actual log-we-write-to in "ab" mode, since that
+            // interacts more politely with eternal processes that might
+            // rotate/truncate the file underneath us.
+            std::FILE *tmp;
+            if (os::fopen_s(&tmp, fname, trunc_mode))
+            {
+                continue;
+            }
+            std::fclose(tmp);
+        }
+        if (!os::fopen_s(&fd_, fname, mode))
+        {
+            return;
+        }
+
+        details::os::sleep_for_millis(open_interval_);
+    }
+
+    throw_spdlog_ex("Failed opening file " + os::filename_to_str(filename_) + " for writing", errno);
+}
+
+SPDLOG_INLINE void file_helper::reopen(bool truncate)
+{
+    if (filename_.empty())
+    {
+        throw_spdlog_ex("Failed re opening file - was not opened before");
+    }
+    this->open(filename_, truncate);
+}
+
+SPDLOG_INLINE void file_helper::flush()
+{
+    std::fflush(fd_);
+}
+
+SPDLOG_INLINE void file_helper::close()
+{
+    if (fd_ != nullptr)
+    {
+        std::fclose(fd_);
+        fd_ = nullptr;
+    }
+}
+
+SPDLOG_INLINE void file_helper::write(const memory_buf_t &buf)
+{
+    size_t msg_size = buf.size();
+    auto data = buf.data();
+    if (std::fwrite(data, 1, msg_size, fd_) != msg_size)
+    {
+        throw_spdlog_ex("Failed writing to file " + os::filename_to_str(filename_), errno);
+    }
+}
+
+SPDLOG_INLINE size_t file_helper::size() const
+{
+    if (fd_ == nullptr)
+    {
+        throw_spdlog_ex("Cannot use size() on closed file " + os::filename_to_str(filename_));
+    }
+    return os::filesize(fd_);
+}
+
+SPDLOG_INLINE const filename_t &file_helper::filename() const
+{
+    return filename_;
+}
+
+//
+// return file path and its extension:
+//
+// "mylog.txt" => ("mylog", ".txt")
+// "mylog" => ("mylog", "")
+// "mylog." => ("mylog.", "")
+// "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
+//
+// the starting dot in filenames is ignored (hidden files):
+//
+// ".mylog" => (".mylog". "")
+// "my_folder/.mylog" => ("my_folder/.mylog", "")
+// "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
+SPDLOG_INLINE std::tuple<filename_t, filename_t> file_helper::split_by_extension(const filename_t &fname)
+{
+    auto ext_index = fname.rfind('.');
+
+    // no valid extension found - return whole path and empty string as
+    // extension
+    if (ext_index == filename_t::npos || ext_index == 0 || ext_index == fname.size() - 1)
+    {
+        return std::make_tuple(fname, filename_t());
+    }
+
+    // treat cases like "/etc/rc.d/somelogfile or "/abc/.hiddenfile"
+    auto folder_index = fname.find_last_of(details::os::folder_seps_filename);
+    if (folder_index != filename_t::npos && folder_index >= ext_index - 1)
+    {
+        return std::make_tuple(fname, filename_t());
+    }
+
+    // finally - return a valid base and extension tuple
+    return std::make_tuple(fname.substr(0, ext_index), fname.substr(ext_index));
+}
+
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/file_helper.h

@@ -0,0 +1,59 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <tuple>
+
+namespace spdlog {
+namespace details {
+
+// Helper class for file sinks.
+// When failing to open a file, retry several times(5) with a delay interval(10 ms).
+// Throw spdlog_ex exception on errors.
+
+class SPDLOG_API file_helper
+{
+public:
+    explicit file_helper() = default;
+
+    file_helper(const file_helper &) = delete;
+    file_helper &operator=(const file_helper &) = delete;
+    ~file_helper();
+
+    void open(const filename_t &fname, bool truncate = false);
+    void reopen(bool truncate);
+    void flush();
+    void close();
+    void write(const memory_buf_t &buf);
+    size_t size() const;
+    const filename_t &filename() const;
+
+    //
+    // return file path and its extension:
+    //
+    // "mylog.txt" => ("mylog", ".txt")
+    // "mylog" => ("mylog", "")
+    // "mylog." => ("mylog.", "")
+    // "/dir1/dir2/mylog.txt" => ("/dir1/dir2/mylog", ".txt")
+    //
+    // the starting dot in filenames is ignored (hidden files):
+    //
+    // ".mylog" => (".mylog". "")
+    // "my_folder/.mylog" => ("my_folder/.mylog", "")
+    // "my_folder/.mylog.txt" => ("my_folder/.mylog", ".txt")
+    static std::tuple<filename_t, filename_t> split_by_extension(const filename_t &fname);
+
+private:
+    const int open_tries_ = 5;
+    const unsigned int open_interval_ = 10;
+    std::FILE *fd_{nullptr};
+    filename_t filename_;
+};
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "file_helper-inl.h"
+#endif

Libs/spdlog/details/fmt_helper.h

@@ -0,0 +1,117 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+#pragma once
+
+#include <chrono>
+#include <type_traits>
+#include <iterator>
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/common.h>
+
+// Some fmt helpers to efficiently format and pad ints and strings
+namespace spdlog {
+namespace details {
+namespace fmt_helper {
+
+inline spdlog::string_view_t to_string_view(const memory_buf_t &buf) SPDLOG_NOEXCEPT
+{
+    return spdlog::string_view_t{buf.data(), buf.size()};
+}
+
+inline void append_string_view(spdlog::string_view_t view, memory_buf_t &dest)
+{
+    auto *buf_ptr = view.data();
+    dest.append(buf_ptr, buf_ptr + view.size());
+}
+
+template<typename T>
+inline void append_int(T n, memory_buf_t &dest)
+{
+    fmt::format_int i(n);
+    dest.append(i.data(), i.data() + i.size());
+}
+
+template<typename T>
+inline unsigned int count_digits(T n)
+{
+    using count_type = typename std::conditional<(sizeof(T) > sizeof(uint32_t)), uint64_t, uint32_t>::type;
+    return static_cast<unsigned int>(fmt::
+// fmt 7.0.0 renamed the internal namespace to detail.
+// See: https://github.com/fmtlib/fmt/issues/1538
+#if FMT_VERSION < 70000
+            internal
+#else
+            detail
+#endif
+        ::count_digits(static_cast<count_type>(n)));
+}
+
+inline void pad2(int n, memory_buf_t &dest)
+{
+    if (n >= 0 && n < 100) // 0-99
+    {
+        dest.push_back(static_cast<char>('0' + n / 10));
+        dest.push_back(static_cast<char>('0' + n % 10));
+    }
+    else // unlikely, but just in case, let fmt deal with it
+    {
+        fmt::format_to(std::back_inserter(dest), SPDLOG_FMT_RUNTIME("{:02}"), n);
+    }
+}
+
+template<typename T>
+inline void pad_uint(T n, unsigned int width, memory_buf_t &dest)
+{
+    static_assert(std::is_unsigned<T>::value, "pad_uint must get unsigned T");
+    for (auto digits = count_digits(n); digits < width; digits++)
+    {
+        dest.push_back('0');
+    }
+    append_int(n, dest);
+}
+
+template<typename T>
+inline void pad3(T n, memory_buf_t &dest)
+{
+    static_assert(std::is_unsigned<T>::value, "pad3 must get unsigned T");
+    if (n < 1000)
+    {
+        dest.push_back(static_cast<char>(n / 100 + '0'));
+        n = n % 100;
+        dest.push_back(static_cast<char>((n / 10) + '0'));
+        dest.push_back(static_cast<char>((n % 10) + '0'));
+    }
+    else
+    {
+        append_int(n, dest);
+    }
+}
+
+template<typename T>
+inline void pad6(T n, memory_buf_t &dest)
+{
+    pad_uint(n, 6, dest);
+}
+
+template<typename T>
+inline void pad9(T n, memory_buf_t &dest)
+{
+    pad_uint(n, 9, dest);
+}
+
+// return fraction of a second of the given time_point.
+// e.g.
+// fraction<std::milliseconds>(tp) -> will return the millis part of the second
+template<typename ToDuration>
+inline ToDuration time_fraction(log_clock::time_point tp)
+{
+    using std::chrono::duration_cast;
+    using std::chrono::seconds;
+    auto duration = tp.time_since_epoch();
+    auto secs = duration_cast<seconds>(duration);
+    return duration_cast<ToDuration>(duration) - duration_cast<ToDuration>(secs);
+}
+
+} // namespace fmt_helper
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/log_msg-inl.h

@@ -0,0 +1,37 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/log_msg.h>
+#endif
+
+#include <spdlog/details/os.h>
+
+namespace spdlog {
+namespace details {
+
+SPDLOG_INLINE log_msg::log_msg(spdlog::log_clock::time_point log_time, spdlog::source_loc loc, string_view_t a_logger_name,
+    spdlog::level::level_enum lvl, spdlog::string_view_t msg)
+    : logger_name(a_logger_name)
+    , level(lvl)
+    , time(log_time)
+#ifndef SPDLOG_NO_THREAD_ID
+    , thread_id(os::thread_id())
+#endif
+    , source(loc)
+    , payload(msg)
+{}
+
+SPDLOG_INLINE log_msg::log_msg(
+    spdlog::source_loc loc, string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
+    : log_msg(os::now(), loc, a_logger_name, lvl, msg)
+{}
+
+SPDLOG_INLINE log_msg::log_msg(string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
+    : log_msg(os::now(), source_loc{}, a_logger_name, lvl, msg)
+{}
+
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/log_msg.h

@@ -0,0 +1,37 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <string>
+
+namespace spdlog {
+namespace details {
+struct SPDLOG_API log_msg
+{
+    log_msg() = default;
+    log_msg(log_clock::time_point log_time, source_loc loc, string_view_t logger_name, level::level_enum lvl, string_view_t msg);
+    log_msg(source_loc loc, string_view_t logger_name, level::level_enum lvl, string_view_t msg);
+    log_msg(string_view_t logger_name, level::level_enum lvl, string_view_t msg);
+    log_msg(const log_msg &other) = default;
+    log_msg &operator=(const log_msg &other) = default;
+
+    string_view_t logger_name;
+    level::level_enum level{level::off};
+    log_clock::time_point time;
+    size_t thread_id{0};
+
+    // wrapping the formatted text with color (updated by pattern_formatter).
+    mutable size_t color_range_start{0};
+    mutable size_t color_range_end{0};
+
+    source_loc source;
+    string_view_t payload;
+};
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "log_msg-inl.h"
+#endif

Libs/spdlog/details/log_msg_buffer-inl.h

@@ -0,0 +1,58 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/log_msg_buffer.h>
+#endif
+
+namespace spdlog {
+namespace details {
+
+SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg &orig_msg)
+    : log_msg{orig_msg}
+{
+    buffer.append(logger_name.begin(), logger_name.end());
+    buffer.append(payload.begin(), payload.end());
+    update_string_views();
+}
+
+SPDLOG_INLINE log_msg_buffer::log_msg_buffer(const log_msg_buffer &other)
+    : log_msg{other}
+{
+    buffer.append(logger_name.begin(), logger_name.end());
+    buffer.append(payload.begin(), payload.end());
+    update_string_views();
+}
+
+SPDLOG_INLINE log_msg_buffer::log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT : log_msg{other}, buffer{std::move(other.buffer)}
+{
+    update_string_views();
+}
+
+SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(const log_msg_buffer &other)
+{
+    log_msg::operator=(other);
+    buffer.clear();
+    buffer.append(other.buffer.data(), other.buffer.data() + other.buffer.size());
+    update_string_views();
+    return *this;
+}
+
+SPDLOG_INLINE log_msg_buffer &log_msg_buffer::operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT
+{
+    log_msg::operator=(other);
+    buffer = std::move(other.buffer);
+    update_string_views();
+    return *this;
+}
+
+SPDLOG_INLINE void log_msg_buffer::update_string_views()
+{
+    logger_name = string_view_t{buffer.data(), logger_name.size()};
+    payload = string_view_t{buffer.data() + logger_name.size(), payload.size()};
+}
+
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/log_msg_buffer.h

@@ -0,0 +1,33 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/details/log_msg.h>
+
+namespace spdlog {
+namespace details {
+
+// Extend log_msg with internal buffer to store its payload.
+// This is needed since log_msg holds string_views that points to stack data.
+
+class SPDLOG_API log_msg_buffer : public log_msg
+{
+    memory_buf_t buffer;
+    void update_string_views();
+
+public:
+    log_msg_buffer() = default;
+    explicit log_msg_buffer(const log_msg &orig_msg);
+    log_msg_buffer(const log_msg_buffer &other);
+    log_msg_buffer(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
+    log_msg_buffer &operator=(const log_msg_buffer &other);
+    log_msg_buffer &operator=(log_msg_buffer &&other) SPDLOG_NOEXCEPT;
+};
+
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "log_msg_buffer-inl.h"
+#endif

Libs/spdlog/details/mpmc_blocking_q.h

@@ -0,0 +1,126 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+// multi producer-multi consumer blocking queue.
+// enqueue(..) - will block until room found to put the new message.
+// enqueue_nowait(..) - will return immediately with false if no room left in
+// the queue.
+// dequeue_for(..) - will block until the queue is not empty or timeout have
+// passed.
+
+#include <spdlog/details/circular_q.h>
+
+#include <condition_variable>
+#include <mutex>
+
+namespace spdlog {
+namespace details {
+
+template<typename T>
+class mpmc_blocking_queue
+{
+public:
+    using item_type = T;
+    explicit mpmc_blocking_queue(size_t max_items)
+        : q_(max_items)
+    {}
+
+#ifndef __MINGW32__
+    // try to enqueue and block if no room left
+    void enqueue(T &&item)
+    {
+        {
+            std::unique_lock<std::mutex> lock(queue_mutex_);
+            pop_cv_.wait(lock, [this] { return !this->q_.full(); });
+            q_.push_back(std::move(item));
+        }
+        push_cv_.notify_one();
+    }
+
+    // enqueue immediately. overrun oldest message in the queue if no room left.
+    void enqueue_nowait(T &&item)
+    {
+        {
+            std::unique_lock<std::mutex> lock(queue_mutex_);
+            q_.push_back(std::move(item));
+        }
+        push_cv_.notify_one();
+    }
+
+    // try to dequeue item. if no item found. wait upto timeout and try again
+    // Return true, if succeeded dequeue item, false otherwise
+    bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration)
+    {
+        {
+            std::unique_lock<std::mutex> lock(queue_mutex_);
+            if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); }))
+            {
+                return false;
+            }
+            popped_item = std::move(q_.front());
+            q_.pop_front();
+        }
+        pop_cv_.notify_one();
+        return true;
+    }
+
+#else
+    // apparently mingw deadlocks if the mutex is released before cv.notify_one(),
+    // so release the mutex at the very end each function.
+
+    // try to enqueue and block if no room left
+    void enqueue(T &&item)
+    {
+        std::unique_lock<std::mutex> lock(queue_mutex_);
+        pop_cv_.wait(lock, [this] { return !this->q_.full(); });
+        q_.push_back(std::move(item));
+        push_cv_.notify_one();
+    }
+
+    // enqueue immediately. overrun oldest message in the queue if no room left.
+    void enqueue_nowait(T &&item)
+    {
+        std::unique_lock<std::mutex> lock(queue_mutex_);
+        q_.push_back(std::move(item));
+        push_cv_.notify_one();
+    }
+
+    // try to dequeue item. if no item found. wait upto timeout and try again
+    // Return true, if succeeded dequeue item, false otherwise
+    bool dequeue_for(T &popped_item, std::chrono::milliseconds wait_duration)
+    {
+        std::unique_lock<std::mutex> lock(queue_mutex_);
+        if (!push_cv_.wait_for(lock, wait_duration, [this] { return !this->q_.empty(); }))
+        {
+            return false;
+        }
+        popped_item = std::move(q_.front());
+        q_.pop_front();
+        pop_cv_.notify_one();
+        return true;
+    }
+
+#endif
+
+    size_t overrun_counter()
+    {
+        std::unique_lock<std::mutex> lock(queue_mutex_);
+        return q_.overrun_counter();
+    }
+
+    size_t size()
+    {
+        std::unique_lock<std::mutex> lock(queue_mutex_);
+        return q_.size();
+    }
+
+private:
+    std::mutex queue_mutex_;
+    std::condition_variable push_cv_;
+    std::condition_variable pop_cv_;
+    spdlog::details::circular_q<T> q_;
+};
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/null_mutex.h

@@ -0,0 +1,49 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <atomic>
+#include <utility>
+// null, no cost dummy "mutex" and dummy "atomic" int
+
+namespace spdlog {
+namespace details {
+struct null_mutex
+{
+    void lock() const {}
+    void unlock() const {}
+    bool try_lock() const
+    {
+        return true;
+    }
+};
+
+struct null_atomic_int
+{
+    int value;
+    null_atomic_int() = default;
+
+    explicit null_atomic_int(int new_value)
+        : value(new_value)
+    {}
+
+    int load(std::memory_order = std::memory_order_relaxed) const
+    {
+        return value;
+    }
+
+    void store(int new_value, std::memory_order = std::memory_order_relaxed)
+    {
+        value = new_value;
+    }
+
+    int exchange(int new_value, std::memory_order = std::memory_order_relaxed)
+    {
+        std::swap(new_value, value);
+        return new_value; // return value before the call
+    }
+};
+
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/os-inl.h

@@ -0,0 +1,599 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/os.h>
+#endif
+
+#include <spdlog/common.h>
+
+#include <algorithm>
+#include <chrono>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <string>
+#include <thread>
+#include <array>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#ifdef _WIN32
+
+#    include <io.h>      // _get_osfhandle and _isatty support
+#    include <process.h> //  _get_pid support
+#    include <spdlog/details/windows_include.h>
+
+#    ifdef __MINGW32__
+#        include <share.h>
+#    endif
+
+#    if defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)
+#        include <limits>
+#    endif
+
+#    include <direct.h> // for _mkdir/_wmkdir
+
+#else // unix
+
+#    include <fcntl.h>
+#    include <unistd.h>
+
+#    ifdef __linux__
+#        include <sys/syscall.h> //Use gettid() syscall under linux to get thread id
+
+#    elif defined(_AIX)
+#        include <pthread.h> // for pthread_getthreadid_np
+
+#    elif defined(__DragonFly__) || defined(__FreeBSD__)
+#        include <pthread_np.h> // for pthread_getthreadid_np
+
+#    elif defined(__NetBSD__)
+#        include <lwp.h> // for _lwp_self
+
+#    elif defined(__sun)
+#        include <thread.h> // for thr_self
+#    endif
+
+#endif // unix
+
+#ifndef __has_feature          // Clang - feature checking macros.
+#    define __has_feature(x) 0 // Compatibility with non-clang compilers.
+#endif
+
+namespace spdlog {
+namespace details {
+namespace os {
+
+SPDLOG_INLINE spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT
+{
+
+#if defined __linux__ && defined SPDLOG_CLOCK_COARSE
+    timespec ts;
+    ::clock_gettime(CLOCK_REALTIME_COARSE, &ts);
+    return std::chrono::time_point<log_clock, typename log_clock::duration>(
+        std::chrono::duration_cast<typename log_clock::duration>(std::chrono::seconds(ts.tv_sec) + std::chrono::nanoseconds(ts.tv_nsec)));
+
+#else
+    return log_clock::now();
+#endif
+}
+SPDLOG_INLINE std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
+{
+
+#ifdef _WIN32
+    std::tm tm;
+    ::localtime_s(&tm, &time_tt);
+#else
+    std::tm tm;
+    ::localtime_r(&time_tt, &tm);
+#endif
+    return tm;
+}
+
+SPDLOG_INLINE std::tm localtime() SPDLOG_NOEXCEPT
+{
+    std::time_t now_t = ::time(nullptr);
+    return localtime(now_t);
+}
+
+SPDLOG_INLINE std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT
+{
+
+#ifdef _WIN32
+    std::tm tm;
+    ::gmtime_s(&tm, &time_tt);
+#else
+    std::tm tm;
+    ::gmtime_r(&time_tt, &tm);
+#endif
+    return tm;
+}
+
+SPDLOG_INLINE std::tm gmtime() SPDLOG_NOEXCEPT
+{
+    std::time_t now_t = ::time(nullptr);
+    return gmtime(now_t);
+}
+
+// fopen_s on non windows for writing
+SPDLOG_INLINE bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode)
+{
+#ifdef _WIN32
+#    ifdef SPDLOG_WCHAR_FILENAMES
+    *fp = ::_wfsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
+#    else
+    *fp = ::_fsopen((filename.c_str()), mode.c_str(), _SH_DENYNO);
+#    endif
+#    if defined(SPDLOG_PREVENT_CHILD_FD)
+    if (*fp != nullptr)
+    {
+        auto file_handle = reinterpret_cast<HANDLE>(_get_osfhandle(::_fileno(*fp)));
+        if (!::SetHandleInformation(file_handle, HANDLE_FLAG_INHERIT, 0))
+        {
+            ::fclose(*fp);
+            *fp = nullptr;
+        }
+    }
+#    endif
+#else // unix
+#    if defined(SPDLOG_PREVENT_CHILD_FD)
+    const int mode_flag = mode == SPDLOG_FILENAME_T("ab") ? O_APPEND : O_TRUNC;
+    const int fd = ::open((filename.c_str()), O_CREAT | O_WRONLY | O_CLOEXEC | mode_flag, mode_t(0644));
+    if (fd == -1)
+    {
+        return false;
+    }
+    *fp = ::fdopen(fd, mode.c_str());
+    if (*fp == nullptr)
+    {
+        ::close(fd);
+    }
+#    else
+    *fp = ::fopen((filename.c_str()), mode.c_str());
+#    endif
+#endif
+
+    return *fp == nullptr;
+}
+
+SPDLOG_INLINE int remove(const filename_t &filename) SPDLOG_NOEXCEPT
+{
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+    return ::_wremove(filename.c_str());
+#else
+    return std::remove(filename.c_str());
+#endif
+}
+
+SPDLOG_INLINE int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT
+{
+    return path_exists(filename) ? remove(filename) : 0;
+}
+
+SPDLOG_INLINE int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT
+{
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+    return ::_wrename(filename1.c_str(), filename2.c_str());
+#else
+    return std::rename(filename1.c_str(), filename2.c_str());
+#endif
+}
+
+// Return true if path exists (file or directory)
+SPDLOG_INLINE bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT
+{
+#ifdef _WIN32
+#    ifdef SPDLOG_WCHAR_FILENAMES
+    auto attribs = ::GetFileAttributesW(filename.c_str());
+#    else
+    auto attribs = ::GetFileAttributesA(filename.c_str());
+#    endif
+    return attribs != INVALID_FILE_ATTRIBUTES;
+#else // common linux/unix all have the stat system call
+    struct stat buffer;
+    return (::stat(filename.c_str(), &buffer) == 0);
+#endif
+}
+
+#ifdef _MSC_VER
+// avoid warning about unreachable statement at the end of filesize()
+#    pragma warning(push)
+#    pragma warning(disable : 4702)
+#endif
+
+// Return file size according to open FILE* object
+SPDLOG_INLINE size_t filesize(FILE *f)
+{
+    if (f == nullptr)
+    {
+        throw_spdlog_ex("Failed getting file size. fd is null");
+    }
+#if defined(_WIN32) && !defined(__CYGWIN__)
+    int fd = ::_fileno(f);
+#    if defined(_WIN64) // 64 bits
+    __int64 ret = ::_filelengthi64(fd);
+    if (ret >= 0)
+    {
+        return static_cast<size_t>(ret);
+    }
+
+#    else // windows 32 bits
+    long ret = ::_filelength(fd);
+    if (ret >= 0)
+    {
+        return static_cast<size_t>(ret);
+    }
+#    endif
+
+#else // unix
+// OpenBSD doesn't compile with :: before the fileno(..)
+#    if defined(__OpenBSD__)
+    int fd = fileno(f);
+#    else
+    int fd = ::fileno(f);
+#    endif
+// 64 bits(but not in osx or cygwin, where fstat64 is deprecated)
+#    if (defined(__linux__) || defined(__sun) || defined(_AIX)) && (defined(__LP64__) || defined(_LP64))
+    struct stat64 st;
+    if (::fstat64(fd, &st) == 0)
+    {
+        return static_cast<size_t>(st.st_size);
+    }
+#    else // other unix or linux 32 bits or cygwin
+    struct stat st;
+    if (::fstat(fd, &st) == 0)
+    {
+        return static_cast<size_t>(st.st_size);
+    }
+#    endif
+#endif
+    throw_spdlog_ex("Failed getting file size from fd", errno);
+    return 0; // will not be reached.
+}
+
+#ifdef _MSC_VER
+#    pragma warning(pop)
+#endif
+
+// Return utc offset in minutes or throw spdlog_ex on failure
+SPDLOG_INLINE int utc_minutes_offset(const std::tm &tm)
+{
+
+#ifdef _WIN32
+#    if _WIN32_WINNT < _WIN32_WINNT_WS08
+    TIME_ZONE_INFORMATION tzinfo;
+    auto rv = ::GetTimeZoneInformation(&tzinfo);
+#    else
+    DYNAMIC_TIME_ZONE_INFORMATION tzinfo;
+    auto rv = ::GetDynamicTimeZoneInformation(&tzinfo);
+#    endif
+    if (rv == TIME_ZONE_ID_INVALID)
+        throw_spdlog_ex("Failed getting timezone info. ", errno);
+
+    int offset = -tzinfo.Bias;
+    if (tm.tm_isdst)
+    {
+        offset -= tzinfo.DaylightBias;
+    }
+    else
+    {
+        offset -= tzinfo.StandardBias;
+    }
+    return offset;
+#else
+
+#    if defined(sun) || defined(__sun) || defined(_AIX) || (!defined(_BSD_SOURCE) && !defined(_GNU_SOURCE))
+    // 'tm_gmtoff' field is BSD extension and it's missing on SunOS/Solaris
+    struct helper
+    {
+        static long int calculate_gmt_offset(const std::tm &localtm = details::os::localtime(), const std::tm &gmtm = details::os::gmtime())
+        {
+            int local_year = localtm.tm_year + (1900 - 1);
+            int gmt_year = gmtm.tm_year + (1900 - 1);
+
+            long int days = (
+                // difference in day of year
+                localtm.tm_yday -
+                gmtm.tm_yday
+
+                // + intervening leap days
+                + ((local_year >> 2) - (gmt_year >> 2)) - (local_year / 100 - gmt_year / 100) +
+                ((local_year / 100 >> 2) - (gmt_year / 100 >> 2))
+
+                // + difference in years * 365 */
+                + (long int)(local_year - gmt_year) * 365);
+
+            long int hours = (24 * days) + (localtm.tm_hour - gmtm.tm_hour);
+            long int mins = (60 * hours) + (localtm.tm_min - gmtm.tm_min);
+            long int secs = (60 * mins) + (localtm.tm_sec - gmtm.tm_sec);
+
+            return secs;
+        }
+    };
+
+    auto offset_seconds = helper::calculate_gmt_offset(tm);
+#    else
+    auto offset_seconds = tm.tm_gmtoff;
+#    endif
+
+    return static_cast<int>(offset_seconds / 60);
+#endif
+}
+
+// Return current thread id as size_t
+// It exists because the std::this_thread::get_id() is much slower(especially
+// under VS 2013)
+SPDLOG_INLINE size_t _thread_id() SPDLOG_NOEXCEPT
+{
+#ifdef _WIN32
+    return static_cast<size_t>(::GetCurrentThreadId());
+#elif defined(__linux__)
+#    if defined(__ANDROID__) && defined(__ANDROID_API__) && (__ANDROID_API__ < 21)
+#        define SYS_gettid __NR_gettid
+#    endif
+    return static_cast<size_t>(::syscall(SYS_gettid));
+#elif defined(_AIX) || defined(__DragonFly__) || defined(__FreeBSD__)
+    return static_cast<size_t>(::pthread_getthreadid_np());
+#elif defined(__NetBSD__)
+    return static_cast<size_t>(::_lwp_self());
+#elif defined(__OpenBSD__)
+    return static_cast<size_t>(::getthrid());
+#elif defined(__sun)
+    return static_cast<size_t>(::thr_self());
+#elif __APPLE__
+    uint64_t tid;
+    pthread_threadid_np(nullptr, &tid);
+    return static_cast<size_t>(tid);
+#else // Default to standard C++11 (other Unix)
+    return static_cast<size_t>(std::hash<std::thread::id>()(std::this_thread::get_id()));
+#endif
+}
+
+// Return current thread id as size_t (from thread local storage)
+SPDLOG_INLINE size_t thread_id() SPDLOG_NOEXCEPT
+{
+#if defined(SPDLOG_NO_TLS)
+    return _thread_id();
+#else // cache thread id in tls
+    static thread_local const size_t tid = _thread_id();
+    return tid;
+#endif
+}
+
+// This is avoid msvc issue in sleep_for that happens if the clock changes.
+// See https://github.com/gabime/spdlog/issues/609
+SPDLOG_INLINE void sleep_for_millis(unsigned int milliseconds) SPDLOG_NOEXCEPT
+{
+#if defined(_WIN32)
+    ::Sleep(milliseconds);
+#else
+    std::this_thread::sleep_for(std::chrono::milliseconds(milliseconds));
+#endif
+}
+
+// wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
+#if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
+SPDLOG_INLINE std::string filename_to_str(const filename_t &filename)
+{
+    memory_buf_t buf;
+    wstr_to_utf8buf(filename, buf);
+    return fmt::to_string(buf);
+}
+#else
+SPDLOG_INLINE std::string filename_to_str(const filename_t &filename)
+{
+    return filename;
+}
+#endif
+
+SPDLOG_INLINE int pid() SPDLOG_NOEXCEPT
+{
+
+#ifdef _WIN32
+    return static_cast<int>(::GetCurrentProcessId());
+#else
+    return static_cast<int>(::getpid());
+#endif
+}
+
+// Determine if the terminal supports colors
+// Based on: https://github.com/agauniyal/rang/
+SPDLOG_INLINE bool is_color_terminal() SPDLOG_NOEXCEPT
+{
+#ifdef _WIN32
+    return true;
+#else
+
+    static const bool result = []() {
+        const char *env_colorterm_p = std::getenv("COLORTERM");
+        if (env_colorterm_p != nullptr)
+        {
+            return true;
+        }
+
+        static constexpr std::array<const char *, 16> terms = {{"ansi", "color", "console", "cygwin", "gnome", "konsole", "kterm", "linux",
+            "msys", "putty", "rxvt", "screen", "vt100", "xterm", "alacritty", "vt102"}};
+
+        const char *env_term_p = std::getenv("TERM");
+        if (env_term_p == nullptr)
+        {
+            return false;
+        }
+
+        return std::any_of(terms.begin(), terms.end(), [&](const char *term) { return std::strstr(env_term_p, term) != nullptr; });
+    }();
+
+    return result;
+#endif
+}
+
+// Determine if the terminal attached
+// Source: https://github.com/agauniyal/rang/
+SPDLOG_INLINE bool in_terminal(FILE *file) SPDLOG_NOEXCEPT
+{
+
+#ifdef _WIN32
+    return ::_isatty(_fileno(file)) != 0;
+#else
+    return ::isatty(fileno(file)) != 0;
+#endif
+}
+
+#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
+SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target)
+{
+    if (wstr.size() > static_cast<size_t>((std::numeric_limits<int>::max)()) / 2 - 1)
+    {
+        throw_spdlog_ex("UTF-16 string is too big to be converted to UTF-8");
+    }
+
+    int wstr_size = static_cast<int>(wstr.size());
+    if (wstr_size == 0)
+    {
+        target.resize(0);
+        return;
+    }
+
+    int result_size = static_cast<int>(target.capacity());
+    if ((wstr_size + 1) * 2 > result_size)
+    {
+        result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, NULL, 0, NULL, NULL);
+    }
+
+    if (result_size > 0)
+    {
+        target.resize(result_size);
+        result_size = ::WideCharToMultiByte(CP_UTF8, 0, wstr.data(), wstr_size, target.data(), result_size, NULL, NULL);
+
+        if (result_size > 0)
+        {
+            target.resize(result_size);
+            return;
+        }
+    }
+
+    throw_spdlog_ex(fmt::format("WideCharToMultiByte failed. Last error: {}", ::GetLastError()));
+}
+
+SPDLOG_INLINE void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target)
+{
+    if (str.size() > static_cast<size_t>((std::numeric_limits<int>::max)()) - 1)
+    {
+        throw_spdlog_ex("UTF-8 string is too big to be converted to UTF-16");
+    }
+
+    int str_size = static_cast<int>(str.size());
+    if (str_size == 0)
+    {
+        target.resize(0);
+        return;
+    }
+
+    int result_size = static_cast<int>(target.capacity());
+    if (str_size + 1 > result_size)
+    {
+        result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, NULL, 0);
+    }
+
+    if (result_size > 0)
+    {
+        target.resize(result_size);
+        result_size = ::MultiByteToWideChar(CP_UTF8, MB_ERR_INVALID_CHARS, str.data(), str_size, target.data(), result_size);
+
+        if (result_size > 0)
+        {
+            target.resize(result_size);
+            return;
+        }
+    }
+
+    throw_spdlog_ex(fmt::format("MultiByteToWideChar failed. Last error: {}", ::GetLastError()));
+}
+#endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
+
+// return true on success
+static SPDLOG_INLINE bool mkdir_(const filename_t &path)
+{
+#ifdef _WIN32
+#    ifdef SPDLOG_WCHAR_FILENAMES
+    return ::_wmkdir(path.c_str()) == 0;
+#    else
+    return ::_mkdir(path.c_str()) == 0;
+#    endif
+#else
+    return ::mkdir(path.c_str(), mode_t(0755)) == 0;
+#endif
+}
+
+// create the given directory - and all directories leading to it
+// return true on success or if the directory already exists
+SPDLOG_INLINE bool create_dir(filename_t path)
+{
+    if (path_exists(path))
+    {
+        return true;
+    }
+
+    if (path.empty())
+    {
+        return false;
+    }
+
+    size_t search_offset = 0;
+    do
+    {
+        auto token_pos = path.find_first_of(folder_seps_filename, search_offset);
+        // treat the entire path as a folder if no folder separator not found
+        if (token_pos == filename_t::npos)
+        {
+            token_pos = path.size();
+        }
+
+        auto subdir = path.substr(0, token_pos);
+
+        if (!subdir.empty() && !path_exists(subdir) && !mkdir_(subdir))
+        {
+            return false; // return error if failed creating dir
+        }
+        search_offset = token_pos + 1;
+    } while (search_offset < path.size());
+
+    return true;
+}
+
+// Return directory name from given path or empty string
+// "abc/file" => "abc"
+// "abc/" => "abc"
+// "abc" => ""
+// "abc///" => "abc//"
+SPDLOG_INLINE filename_t dir_name(filename_t path)
+{
+    auto pos = path.find_last_of(folder_seps_filename);
+    return pos != filename_t::npos ? path.substr(0, pos) : filename_t{};
+}
+
+std::string SPDLOG_INLINE getenv(const char *field)
+{
+
+#if defined(_MSC_VER)
+#    if defined(__cplusplus_winrt)
+    return std::string{}; // not supported under uwp
+#    else
+    size_t len = 0;
+    char buf[128];
+    bool ok = ::getenv_s(&len, buf, sizeof(buf), field) == 0;
+    return ok ? buf : std::string{};
+#    endif
+#else // revert to getenv
+    char *buf = ::getenv(field);
+    return buf ? buf : std::string{};
+#endif
+}
+
+} // namespace os
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/os.h

@@ -0,0 +1,118 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <ctime> // std::time_t
+
+namespace spdlog {
+namespace details {
+namespace os {
+
+SPDLOG_API spdlog::log_clock::time_point now() SPDLOG_NOEXCEPT;
+
+SPDLOG_API std::tm localtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT;
+
+SPDLOG_API std::tm localtime() SPDLOG_NOEXCEPT;
+
+SPDLOG_API std::tm gmtime(const std::time_t &time_tt) SPDLOG_NOEXCEPT;
+
+SPDLOG_API std::tm gmtime() SPDLOG_NOEXCEPT;
+
+// eol definition
+#if !defined(SPDLOG_EOL)
+#    ifdef _WIN32
+#        define SPDLOG_EOL "\r\n"
+#    else
+#        define SPDLOG_EOL "\n"
+#    endif
+#endif
+
+SPDLOG_CONSTEXPR static const char *default_eol = SPDLOG_EOL;
+
+// folder separator
+#if !defined(SPDLOG_FOLDER_SEPS)
+#    ifdef _WIN32
+#        define SPDLOG_FOLDER_SEPS "\\/"
+#    else
+#        define SPDLOG_FOLDER_SEPS "/"
+#    endif
+#endif
+
+SPDLOG_CONSTEXPR static const char folder_seps[] = SPDLOG_FOLDER_SEPS;
+SPDLOG_CONSTEXPR static const filename_t::value_type folder_seps_filename[] = SPDLOG_FILENAME_T(SPDLOG_FOLDER_SEPS);
+
+// fopen_s on non windows for writing
+SPDLOG_API bool fopen_s(FILE **fp, const filename_t &filename, const filename_t &mode);
+
+// Remove filename. return 0 on success
+SPDLOG_API int remove(const filename_t &filename) SPDLOG_NOEXCEPT;
+
+// Remove file if exists. return 0 on success
+// Note: Non atomic (might return failure to delete if concurrently deleted by other process/thread)
+SPDLOG_API int remove_if_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
+
+SPDLOG_API int rename(const filename_t &filename1, const filename_t &filename2) SPDLOG_NOEXCEPT;
+
+// Return if file exists.
+SPDLOG_API bool path_exists(const filename_t &filename) SPDLOG_NOEXCEPT;
+
+// Return file size according to open FILE* object
+SPDLOG_API size_t filesize(FILE *f);
+
+// Return utc offset in minutes or throw spdlog_ex on failure
+SPDLOG_API int utc_minutes_offset(const std::tm &tm = details::os::localtime());
+
+// Return current thread id as size_t
+// It exists because the std::this_thread::get_id() is much slower(especially
+// under VS 2013)
+SPDLOG_API size_t _thread_id() SPDLOG_NOEXCEPT;
+
+// Return current thread id as size_t (from thread local storage)
+SPDLOG_API size_t thread_id() SPDLOG_NOEXCEPT;
+
+// This is avoid msvc issue in sleep_for that happens if the clock changes.
+// See https://github.com/gabime/spdlog/issues/609
+SPDLOG_API void sleep_for_millis(unsigned int milliseconds) SPDLOG_NOEXCEPT;
+
+SPDLOG_API std::string filename_to_str(const filename_t &filename);
+
+SPDLOG_API int pid() SPDLOG_NOEXCEPT;
+
+// Determine if the terminal supports colors
+// Source: https://github.com/agauniyal/rang/
+SPDLOG_API bool is_color_terminal() SPDLOG_NOEXCEPT;
+
+// Determine if the terminal attached
+// Source: https://github.com/agauniyal/rang/
+SPDLOG_API bool in_terminal(FILE *file) SPDLOG_NOEXCEPT;
+
+#if (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
+SPDLOG_API void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target);
+
+SPDLOG_API void utf8_to_wstrbuf(string_view_t str, wmemory_buf_t &target);
+#endif
+
+// Return directory name from given path or empty string
+// "abc/file" => "abc"
+// "abc/" => "abc"
+// "abc" => ""
+// "abc///" => "abc//"
+SPDLOG_API filename_t dir_name(filename_t path);
+
+// Create a dir from the given path.
+// Return true if succeeded or if this dir already exists.
+SPDLOG_API bool create_dir(filename_t path);
+
+// non thread safe, cross platform getenv/getenv_s
+// return empty string if field not found
+SPDLOG_API std::string getenv(const char *field);
+
+} // namespace os
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "os-inl.h"
+#endif

Libs/spdlog/details/periodic_worker-inl.h

@@ -0,0 +1,49 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/periodic_worker.h>
+#endif
+
+namespace spdlog {
+namespace details {
+
+SPDLOG_INLINE periodic_worker::periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval)
+{
+    active_ = (interval > std::chrono::seconds::zero());
+    if (!active_)
+    {
+        return;
+    }
+
+    worker_thread_ = std::thread([this, callback_fun, interval]() {
+        for (;;)
+        {
+            std::unique_lock<std::mutex> lock(this->mutex_);
+            if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; }))
+            {
+                return; // active_ == false, so exit this thread
+            }
+            callback_fun();
+        }
+    });
+}
+
+// stop the worker thread and join it
+SPDLOG_INLINE periodic_worker::~periodic_worker()
+{
+    if (worker_thread_.joinable())
+    {
+        {
+            std::lock_guard<std::mutex> lock(mutex_);
+            active_ = false;
+        }
+        cv_.notify_one();
+        worker_thread_.join();
+    }
+}
+
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/periodic_worker.h

@@ -0,0 +1,40 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+// periodic worker thread - periodically executes the given callback function.
+//
+// RAII over the owned thread:
+//    creates the thread on construction.
+//    stops and joins the thread on destruction (if the thread is executing a callback, wait for it to finish first).
+
+#include <chrono>
+#include <condition_variable>
+#include <functional>
+#include <mutex>
+#include <thread>
+namespace spdlog {
+namespace details {
+
+class SPDLOG_API periodic_worker
+{
+public:
+    periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval);
+    periodic_worker(const periodic_worker &) = delete;
+    periodic_worker &operator=(const periodic_worker &) = delete;
+    // stop the worker thread and join it
+    ~periodic_worker();
+
+private:
+    bool active_;
+    std::thread worker_thread_;
+    std::mutex mutex_;
+    std::condition_variable cv_;
+};
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "periodic_worker-inl.h"
+#endif

Libs/spdlog/details/registry-inl.h

@@ -0,0 +1,313 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/registry.h>
+#endif
+
+#include <spdlog/common.h>
+#include <spdlog/details/periodic_worker.h>
+#include <spdlog/logger.h>
+#include <spdlog/pattern_formatter.h>
+
+#ifndef SPDLOG_DISABLE_DEFAULT_LOGGER
+// support for the default stdout color logger
+#    ifdef _WIN32
+#        include <spdlog/sinks/wincolor_sink.h>
+#    else
+#        include <spdlog/sinks/ansicolor_sink.h>
+#    endif
+#endif // SPDLOG_DISABLE_DEFAULT_LOGGER
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+#include <unordered_map>
+
+namespace spdlog {
+namespace details {
+
+SPDLOG_INLINE registry::registry()
+    : formatter_(new pattern_formatter())
+{
+
+#ifndef SPDLOG_DISABLE_DEFAULT_LOGGER
+    // create default logger (ansicolor_stdout_sink_mt or wincolor_stdout_sink_mt in windows).
+#    ifdef _WIN32
+    auto color_sink = std::make_shared<sinks::wincolor_stdout_sink_mt>();
+#    else
+    auto color_sink = std::make_shared<sinks::ansicolor_stdout_sink_mt>();
+#    endif
+
+    const char *default_logger_name = "";
+    default_logger_ = std::make_shared<spdlog::logger>(default_logger_name, std::move(color_sink));
+    loggers_[default_logger_name] = default_logger_;
+
+#endif // SPDLOG_DISABLE_DEFAULT_LOGGER
+}
+
+SPDLOG_INLINE registry::~registry() = default;
+
+SPDLOG_INLINE void registry::register_logger(std::shared_ptr<logger> new_logger)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    register_logger_(std::move(new_logger));
+}
+
+SPDLOG_INLINE void registry::initialize_logger(std::shared_ptr<logger> new_logger)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    new_logger->set_formatter(formatter_->clone());
+
+    if (err_handler_)
+    {
+        new_logger->set_error_handler(err_handler_);
+    }
+
+    // set new level according to previously configured level or default level
+    auto it = log_levels_.find(new_logger->name());
+    auto new_level = it != log_levels_.end() ? it->second : global_log_level_;
+    new_logger->set_level(new_level);
+
+    new_logger->flush_on(flush_level_);
+
+    if (backtrace_n_messages_ > 0)
+    {
+        new_logger->enable_backtrace(backtrace_n_messages_);
+    }
+
+    if (automatic_registration_)
+    {
+        register_logger_(std::move(new_logger));
+    }
+}
+
+SPDLOG_INLINE std::shared_ptr<logger> registry::get(const std::string &logger_name)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    auto found = loggers_.find(logger_name);
+    return found == loggers_.end() ? nullptr : found->second;
+}
+
+SPDLOG_INLINE std::shared_ptr<logger> registry::default_logger()
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    return default_logger_;
+}
+
+// Return raw ptr to the default logger.
+// To be used directly by the spdlog default api (e.g. spdlog::info)
+// This make the default API faster, but cannot be used concurrently with set_default_logger().
+// e.g do not call set_default_logger() from one thread while calling spdlog::info() from another.
+SPDLOG_INLINE logger *registry::get_default_raw()
+{
+    return default_logger_.get();
+}
+
+// set default logger.
+// default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map.
+SPDLOG_INLINE void registry::set_default_logger(std::shared_ptr<logger> new_default_logger)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    // remove previous default logger from the map
+    if (default_logger_ != nullptr)
+    {
+        loggers_.erase(default_logger_->name());
+    }
+    if (new_default_logger != nullptr)
+    {
+        loggers_[new_default_logger->name()] = new_default_logger;
+    }
+    default_logger_ = std::move(new_default_logger);
+}
+
+SPDLOG_INLINE void registry::set_tp(std::shared_ptr<thread_pool> tp)
+{
+    std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
+    tp_ = std::move(tp);
+}
+
+SPDLOG_INLINE std::shared_ptr<thread_pool> registry::get_tp()
+{
+    std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
+    return tp_;
+}
+
+// Set global formatter. Each sink in each logger will get a clone of this object
+SPDLOG_INLINE void registry::set_formatter(std::unique_ptr<formatter> formatter)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    formatter_ = std::move(formatter);
+    for (auto &l : loggers_)
+    {
+        l.second->set_formatter(formatter_->clone());
+    }
+}
+
+SPDLOG_INLINE void registry::enable_backtrace(size_t n_messages)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    backtrace_n_messages_ = n_messages;
+
+    for (auto &l : loggers_)
+    {
+        l.second->enable_backtrace(n_messages);
+    }
+}
+
+SPDLOG_INLINE void registry::disable_backtrace()
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    backtrace_n_messages_ = 0;
+    for (auto &l : loggers_)
+    {
+        l.second->disable_backtrace();
+    }
+}
+
+SPDLOG_INLINE void registry::set_level(level::level_enum log_level)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    for (auto &l : loggers_)
+    {
+        l.second->set_level(log_level);
+    }
+    global_log_level_ = log_level;
+}
+
+SPDLOG_INLINE void registry::flush_on(level::level_enum log_level)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    for (auto &l : loggers_)
+    {
+        l.second->flush_on(log_level);
+    }
+    flush_level_ = log_level;
+}
+
+SPDLOG_INLINE void registry::flush_every(std::chrono::seconds interval)
+{
+    std::lock_guard<std::mutex> lock(flusher_mutex_);
+    auto clbk = [this]() { this->flush_all(); };
+    periodic_flusher_ = details::make_unique<periodic_worker>(clbk, interval);
+}
+
+SPDLOG_INLINE void registry::set_error_handler(err_handler handler)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    for (auto &l : loggers_)
+    {
+        l.second->set_error_handler(handler);
+    }
+    err_handler_ = std::move(handler);
+}
+
+SPDLOG_INLINE void registry::apply_all(const std::function<void(const std::shared_ptr<logger>)> &fun)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    for (auto &l : loggers_)
+    {
+        fun(l.second);
+    }
+}
+
+SPDLOG_INLINE void registry::flush_all()
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    for (auto &l : loggers_)
+    {
+        l.second->flush();
+    }
+}
+
+SPDLOG_INLINE void registry::drop(const std::string &logger_name)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    loggers_.erase(logger_name);
+    if (default_logger_ && default_logger_->name() == logger_name)
+    {
+        default_logger_.reset();
+    }
+}
+
+SPDLOG_INLINE void registry::drop_all()
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    loggers_.clear();
+    default_logger_.reset();
+}
+
+// clean all resources and threads started by the registry
+SPDLOG_INLINE void registry::shutdown()
+{
+    {
+        std::lock_guard<std::mutex> lock(flusher_mutex_);
+        periodic_flusher_.reset();
+    }
+
+    drop_all();
+
+    {
+        std::lock_guard<std::recursive_mutex> lock(tp_mutex_);
+        tp_.reset();
+    }
+}
+
+SPDLOG_INLINE std::recursive_mutex &registry::tp_mutex()
+{
+    return tp_mutex_;
+}
+
+SPDLOG_INLINE void registry::set_automatic_registration(bool automatic_registration)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    automatic_registration_ = automatic_registration;
+}
+
+SPDLOG_INLINE void registry::set_levels(log_levels levels, level::level_enum *global_level)
+{
+    std::lock_guard<std::mutex> lock(logger_map_mutex_);
+    log_levels_ = std::move(levels);
+    auto global_level_requested = global_level != nullptr;
+    global_log_level_ = global_level_requested ? *global_level : global_log_level_;
+
+    for (auto &logger : loggers_)
+    {
+        auto logger_entry = log_levels_.find(logger.first);
+        if (logger_entry != log_levels_.end())
+        {
+            logger.second->set_level(logger_entry->second);
+        }
+        else if (global_level_requested)
+        {
+            logger.second->set_level(*global_level);
+        }
+    }
+}
+
+SPDLOG_INLINE registry &registry::instance()
+{
+    static registry s_instance;
+    return s_instance;
+}
+
+SPDLOG_INLINE void registry::throw_if_exists_(const std::string &logger_name)
+{
+    if (loggers_.find(logger_name) != loggers_.end())
+    {
+        throw_spdlog_ex("logger with name '" + logger_name + "' already exists");
+    }
+}
+
+SPDLOG_INLINE void registry::register_logger_(std::shared_ptr<logger> new_logger)
+{
+    auto logger_name = new_logger->name();
+    throw_if_exists_(logger_name);
+    loggers_[logger_name] = std::move(new_logger);
+}
+
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/registry.h

@@ -0,0 +1,115 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+// Loggers registry of unique name->logger pointer
+// An attempt to create a logger with an already existing name will result with spdlog_ex exception.
+// If user requests a non existing logger, nullptr will be returned
+// This class is thread safe
+
+#include <spdlog/common.h>
+
+#include <chrono>
+#include <functional>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <mutex>
+
+namespace spdlog {
+class logger;
+
+namespace details {
+class thread_pool;
+class periodic_worker;
+
+class SPDLOG_API registry
+{
+public:
+    using log_levels = std::unordered_map<std::string, level::level_enum>;
+    registry(const registry &) = delete;
+    registry &operator=(const registry &) = delete;
+
+    void register_logger(std::shared_ptr<logger> new_logger);
+    void initialize_logger(std::shared_ptr<logger> new_logger);
+    std::shared_ptr<logger> get(const std::string &logger_name);
+    std::shared_ptr<logger> default_logger();
+
+    // Return raw ptr to the default logger.
+    // To be used directly by the spdlog default api (e.g. spdlog::info)
+    // This make the default API faster, but cannot be used concurrently with set_default_logger().
+    // e.g do not call set_default_logger() from one thread while calling spdlog::info() from another.
+    logger *get_default_raw();
+
+    // set default logger.
+    // default logger is stored in default_logger_ (for faster retrieval) and in the loggers_ map.
+    void set_default_logger(std::shared_ptr<logger> new_default_logger);
+
+    void set_tp(std::shared_ptr<thread_pool> tp);
+
+    std::shared_ptr<thread_pool> get_tp();
+
+    // Set global formatter. Each sink in each logger will get a clone of this object
+    void set_formatter(std::unique_ptr<formatter> formatter);
+
+    void enable_backtrace(size_t n_messages);
+
+    void disable_backtrace();
+
+    void set_level(level::level_enum log_level);
+
+    void flush_on(level::level_enum log_level);
+
+    void flush_every(std::chrono::seconds interval);
+
+    void set_error_handler(err_handler handler);
+
+    void apply_all(const std::function<void(const std::shared_ptr<logger>)> &fun);
+
+    void flush_all();
+
+    void drop(const std::string &logger_name);
+
+    void drop_all();
+
+    // clean all resources and threads started by the registry
+    void shutdown();
+
+    std::recursive_mutex &tp_mutex();
+
+    void set_automatic_registration(bool automatic_registration);
+
+    // set levels for all existing/future loggers. global_level can be null if should not set.
+    void set_levels(log_levels levels, level::level_enum *global_level);
+
+    static registry &instance();
+
+private:
+    registry();
+    ~registry();
+
+    void throw_if_exists_(const std::string &logger_name);
+    void register_logger_(std::shared_ptr<logger> new_logger);
+    bool set_level_from_cfg_(logger *logger);
+    std::mutex logger_map_mutex_, flusher_mutex_;
+    std::recursive_mutex tp_mutex_;
+    std::unordered_map<std::string, std::shared_ptr<logger>> loggers_;
+    log_levels log_levels_;
+    std::unique_ptr<formatter> formatter_;
+    spdlog::level::level_enum global_log_level_ = level::info;
+    level::level_enum flush_level_ = level::off;
+    err_handler err_handler_;
+    std::shared_ptr<thread_pool> tp_;
+    std::unique_ptr<periodic_worker> periodic_flusher_;
+    std::shared_ptr<logger> default_logger_;
+    bool automatic_registration_ = true;
+    size_t backtrace_n_messages_ = 0;
+};
+
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "registry-inl.h"
+#endif

Libs/spdlog/details/synchronous_factory.h

@@ -0,0 +1,24 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include "registry.h"
+
+namespace spdlog {
+
+// Default logger factory-  creates synchronous loggers
+class logger;
+
+struct synchronous_factory
+{
+    template<typename Sink, typename... SinkArgs>
+    static std::shared_ptr<spdlog::logger> create(std::string logger_name, SinkArgs &&...args)
+    {
+        auto sink = std::make_shared<Sink>(std::forward<SinkArgs>(args)...);
+        auto new_logger = std::make_shared<spdlog::logger>(std::move(logger_name), std::move(sink));
+        details::registry::instance().initialize_logger(new_logger);
+        return new_logger;
+    }
+};
+} // namespace spdlog

Libs/spdlog/details/tcp_client-windows.h

@@ -0,0 +1,175 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#define WIN32_LEAN_AND_MEAN
+// tcp client helper
+#include <spdlog/common.h>
+#include <spdlog/details/os.h>
+
+#include <winsock2.h>
+#include <windows.h>
+#include <ws2tcpip.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string>
+
+#pragma comment(lib, "Ws2_32.lib")
+#pragma comment(lib, "Mswsock.lib")
+#pragma comment(lib, "AdvApi32.lib")
+
+namespace spdlog {
+namespace details {
+class tcp_client
+{
+    SOCKET socket_ = INVALID_SOCKET;
+
+    static bool winsock_initialized_()
+    {
+        SOCKET s = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
+        if (s == INVALID_SOCKET)
+        {
+            return false;
+        }
+        else
+        {
+            closesocket(s);
+            return true;
+        }
+    }
+
+    static void init_winsock_()
+    {
+        WSADATA wsaData;
+        auto rv = WSAStartup(MAKEWORD(2, 2), &wsaData);
+        if (rv != 0)
+        {
+            throw_winsock_error_("WSAStartup failed", ::WSAGetLastError());
+        }
+    }
+
+    static void throw_winsock_error_(const std::string &msg, int last_error)
+    {
+        char buf[512];
+        ::FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, last_error,
+            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), buf, (sizeof(buf) / sizeof(char)), NULL);
+
+        throw_spdlog_ex(fmt::format("tcp_sink - {}: {}", msg, buf));
+    }
+
+public:
+    bool is_connected() const
+    {
+        return socket_ != INVALID_SOCKET;
+    }
+
+    void close()
+    {
+        ::closesocket(socket_);
+        socket_ = INVALID_SOCKET;
+        WSACleanup();
+    }
+
+    SOCKET fd() const
+    {
+        return socket_;
+    }
+
+    ~tcp_client()
+    {
+        close();
+    }
+
+    // try to connect or throw on failure
+    void connect(const std::string &host, int port)
+    {
+        // initialize winsock if needed
+        if (!winsock_initialized_())
+        {
+            init_winsock_();
+        }
+
+        if (is_connected())
+        {
+            close();
+        }
+        struct addrinfo hints
+        {};
+        ZeroMemory(&hints, sizeof(hints));
+
+        hints.ai_family = AF_INET;       // IPv4
+        hints.ai_socktype = SOCK_STREAM; // TCP
+        hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value
+        hints.ai_protocol = 0;
+
+        auto port_str = std::to_string(port);
+        struct addrinfo *addrinfo_result;
+        auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result);
+        int last_error = 0;
+        if (rv != 0)
+        {
+            last_error = ::WSAGetLastError();
+            WSACleanup();
+            throw_winsock_error_("getaddrinfo failed", last_error);
+        }
+
+        // Try each address until we successfully connect(2).
+
+        for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next)
+        {
+            socket_ = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
+            if (socket_ == INVALID_SOCKET)
+            {
+                last_error = ::WSAGetLastError();
+                WSACleanup();
+                continue;
+            }
+            if (::connect(socket_, rp->ai_addr, (int)rp->ai_addrlen) == 0)
+            {
+                break;
+            }
+            else
+            {
+                last_error = ::WSAGetLastError();
+                close();
+            }
+        }
+        ::freeaddrinfo(addrinfo_result);
+        if (socket_ == INVALID_SOCKET)
+        {
+            WSACleanup();
+            throw_winsock_error_("connect failed", last_error);
+        }
+
+        // set TCP_NODELAY
+        int enable_flag = 1;
+        ::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&enable_flag), sizeof(enable_flag));
+    }
+
+    // Send exactly n_bytes of the given data.
+    // On error close the connection and throw.
+    void send(const char *data, size_t n_bytes)
+    {
+        size_t bytes_sent = 0;
+        while (bytes_sent < n_bytes)
+        {
+            const int send_flags = 0;
+            auto write_result = ::send(socket_, data + bytes_sent, (int)(n_bytes - bytes_sent), send_flags);
+            if (write_result == SOCKET_ERROR)
+            {
+                int last_error = ::WSAGetLastError();
+                close();
+                throw_winsock_error_("send failed", last_error);
+            }
+
+            if (write_result == 0) // (probably should not happen but in any case..)
+            {
+                break;
+            }
+            bytes_sent += static_cast<size_t>(write_result);
+        }
+    }
+};
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/tcp_client.h

@@ -0,0 +1,146 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifdef _WIN32
+#    error include tcp_client-windows.h instead
+#endif
+
+// tcp client helper
+#include <spdlog/common.h>
+#include <spdlog/details/os.h>
+
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <unistd.h>
+#include <netdb.h>
+#include <netinet/tcp.h>
+
+#include <string>
+
+namespace spdlog {
+namespace details {
+class tcp_client
+{
+    int socket_ = -1;
+
+public:
+    bool is_connected() const
+    {
+        return socket_ != -1;
+    }
+
+    void close()
+    {
+        if (is_connected())
+        {
+            ::close(socket_);
+            socket_ = -1;
+        }
+    }
+
+    int fd() const
+    {
+        return socket_;
+    }
+
+    ~tcp_client()
+    {
+        close();
+    }
+
+    // try to connect or throw on failure
+    void connect(const std::string &host, int port)
+    {
+        close();
+        struct addrinfo hints
+        {};
+        memset(&hints, 0, sizeof(struct addrinfo));
+        hints.ai_family = AF_INET;       // IPv4
+        hints.ai_socktype = SOCK_STREAM; // TCP
+        hints.ai_flags = AI_NUMERICSERV; // port passed as as numeric value
+        hints.ai_protocol = 0;
+
+        auto port_str = std::to_string(port);
+        struct addrinfo *addrinfo_result;
+        auto rv = ::getaddrinfo(host.c_str(), port_str.c_str(), &hints, &addrinfo_result);
+        if (rv != 0)
+        {
+            auto msg = fmt::format("::getaddrinfo failed: {}", gai_strerror(rv));
+            throw_spdlog_ex(msg);
+        }
+
+        // Try each address until we successfully connect(2).
+        int last_errno = 0;
+        for (auto *rp = addrinfo_result; rp != nullptr; rp = rp->ai_next)
+        {
+#if defined(SOCK_CLOEXEC)
+            const int flags = SOCK_CLOEXEC;
+#else
+            const int flags = 0;
+#endif
+            socket_ = ::socket(rp->ai_family, rp->ai_socktype | flags, rp->ai_protocol);
+            if (socket_ == -1)
+            {
+                last_errno = errno;
+                continue;
+            }
+            rv = ::connect(socket_, rp->ai_addr, rp->ai_addrlen);
+            if (rv == 0)
+            {
+                break;
+            }
+            last_errno = errno;
+            ::close(socket_);
+            socket_ = -1;
+        }
+        ::freeaddrinfo(addrinfo_result);
+        if (socket_ == -1)
+        {
+            throw_spdlog_ex("::connect failed", last_errno);
+        }
+
+        // set TCP_NODELAY
+        int enable_flag = 1;
+        ::setsockopt(socket_, IPPROTO_TCP, TCP_NODELAY, reinterpret_cast<char *>(&enable_flag), sizeof(enable_flag));
+
+        // prevent sigpipe on systems where MSG_NOSIGNAL is not available
+#if defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL)
+        ::setsockopt(socket_, SOL_SOCKET, SO_NOSIGPIPE, reinterpret_cast<char *>(&enable_flag), sizeof(enable_flag));
+#endif
+
+#if !defined(SO_NOSIGPIPE) && !defined(MSG_NOSIGNAL)
+#    error "tcp_sink would raise SIGPIPE since niether SO_NOSIGPIPE nor MSG_NOSIGNAL are available"
+#endif
+    }
+
+    // Send exactly n_bytes of the given data.
+    // On error close the connection and throw.
+    void send(const char *data, size_t n_bytes)
+    {
+        size_t bytes_sent = 0;
+        while (bytes_sent < n_bytes)
+        {
+#if defined(MSG_NOSIGNAL)
+            const int send_flags = MSG_NOSIGNAL;
+#else
+            const int send_flags = 0;
+#endif
+            auto write_result = ::send(socket_, data + bytes_sent, n_bytes - bytes_sent, send_flags);
+            if (write_result < 0)
+            {
+                close();
+                throw_spdlog_ex("write(2) failed", errno);
+            }
+
+            if (write_result == 0) // (probably should not happen but in any case..)
+            {
+                break;
+            }
+            bytes_sent += static_cast<size_t>(write_result);
+        }
+    }
+};
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/thread_pool-inl.h

@@ -0,0 +1,129 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/details/thread_pool.h>
+#endif
+
+#include <spdlog/common.h>
+#include <cassert>
+
+namespace spdlog {
+namespace details {
+
+SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n, std::function<void()> on_thread_start)
+    : q_(q_max_items)
+{
+    if (threads_n == 0 || threads_n > 1000)
+    {
+        throw_spdlog_ex("spdlog::thread_pool(): invalid threads_n param (valid "
+                        "range is 1-1000)");
+    }
+    for (size_t i = 0; i < threads_n; i++)
+    {
+        threads_.emplace_back([this, on_thread_start] {
+            on_thread_start();
+            this->thread_pool::worker_loop_();
+        });
+    }
+}
+
+SPDLOG_INLINE thread_pool::thread_pool(size_t q_max_items, size_t threads_n)
+    : thread_pool(q_max_items, threads_n, [] {})
+{}
+
+// message all threads to terminate gracefully join them
+SPDLOG_INLINE thread_pool::~thread_pool()
+{
+    SPDLOG_TRY
+    {
+        for (size_t i = 0; i < threads_.size(); i++)
+        {
+            post_async_msg_(async_msg(async_msg_type::terminate), async_overflow_policy::block);
+        }
+
+        for (auto &t : threads_)
+        {
+            t.join();
+        }
+    }
+    SPDLOG_CATCH_STD
+}
+
+void SPDLOG_INLINE thread_pool::post_log(async_logger_ptr &&worker_ptr, const details::log_msg &msg, async_overflow_policy overflow_policy)
+{
+    async_msg async_m(std::move(worker_ptr), async_msg_type::log, msg);
+    post_async_msg_(std::move(async_m), overflow_policy);
+}
+
+void SPDLOG_INLINE thread_pool::post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy)
+{
+    post_async_msg_(async_msg(std::move(worker_ptr), async_msg_type::flush), overflow_policy);
+}
+
+size_t SPDLOG_INLINE thread_pool::overrun_counter()
+{
+    return q_.overrun_counter();
+}
+
+size_t SPDLOG_INLINE thread_pool::queue_size()
+{
+    return q_.size();
+}
+
+void SPDLOG_INLINE thread_pool::post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy)
+{
+    if (overflow_policy == async_overflow_policy::block)
+    {
+        q_.enqueue(std::move(new_msg));
+    }
+    else
+    {
+        q_.enqueue_nowait(std::move(new_msg));
+    }
+}
+
+void SPDLOG_INLINE thread_pool::worker_loop_()
+{
+    while (process_next_msg_()) {}
+}
+
+// process next message in the queue
+// return true if this thread should still be active (while no terminate msg
+// was received)
+bool SPDLOG_INLINE thread_pool::process_next_msg_()
+{
+    async_msg incoming_async_msg;
+    bool dequeued = q_.dequeue_for(incoming_async_msg, std::chrono::seconds(10));
+    if (!dequeued)
+    {
+        return true;
+    }
+
+    switch (incoming_async_msg.msg_type)
+    {
+    case async_msg_type::log: {
+        incoming_async_msg.worker_ptr->backend_sink_it_(incoming_async_msg);
+        return true;
+    }
+    case async_msg_type::flush: {
+        incoming_async_msg.worker_ptr->backend_flush_();
+        return true;
+    }
+
+    case async_msg_type::terminate: {
+        return false;
+    }
+
+    default: {
+        assert(false);
+    }
+    }
+
+    return true;
+}
+
+} // namespace details
+} // namespace spdlog

Libs/spdlog/details/thread_pool.h

@@ -0,0 +1,121 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/details/log_msg_buffer.h>
+#include <spdlog/details/mpmc_blocking_q.h>
+#include <spdlog/details/os.h>
+
+#include <chrono>
+#include <memory>
+#include <thread>
+#include <vector>
+#include <functional>
+
+namespace spdlog {
+class async_logger;
+
+namespace details {
+
+using async_logger_ptr = std::shared_ptr<spdlog::async_logger>;
+
+enum class async_msg_type
+{
+    log,
+    flush,
+    terminate
+};
+
+#include <spdlog/details/log_msg_buffer.h>
+// Async msg to move to/from the queue
+// Movable only. should never be copied
+struct async_msg : log_msg_buffer
+{
+    async_msg_type msg_type{async_msg_type::log};
+    async_logger_ptr worker_ptr;
+
+    async_msg() = default;
+    ~async_msg() = default;
+
+    // should only be moved in or out of the queue..
+    async_msg(const async_msg &) = delete;
+
+// support for vs2013 move
+#if defined(_MSC_VER) && _MSC_VER <= 1800
+    async_msg(async_msg &&other)
+        : log_msg_buffer(std::move(other))
+        , msg_type(other.msg_type)
+        , worker_ptr(std::move(other.worker_ptr))
+    {}
+
+    async_msg &operator=(async_msg &&other)
+    {
+        *static_cast<log_msg_buffer *>(this) = std::move(other);
+        msg_type = other.msg_type;
+        worker_ptr = std::move(other.worker_ptr);
+        return *this;
+    }
+#else // (_MSC_VER) && _MSC_VER <= 1800
+    async_msg(async_msg &&) = default;
+    async_msg &operator=(async_msg &&) = default;
+#endif
+
+    // construct from log_msg with given type
+    async_msg(async_logger_ptr &&worker, async_msg_type the_type, const details::log_msg &m)
+        : log_msg_buffer{m}
+        , msg_type{the_type}
+        , worker_ptr{std::move(worker)}
+    {}
+
+    async_msg(async_logger_ptr &&worker, async_msg_type the_type)
+        : log_msg_buffer{}
+        , msg_type{the_type}
+        , worker_ptr{std::move(worker)}
+    {}
+
+    explicit async_msg(async_msg_type the_type)
+        : async_msg{nullptr, the_type}
+    {}
+};
+
+class SPDLOG_API thread_pool
+{
+public:
+    using item_type = async_msg;
+    using q_type = details::mpmc_blocking_queue<item_type>;
+
+    thread_pool(size_t q_max_items, size_t threads_n, std::function<void()> on_thread_start);
+    thread_pool(size_t q_max_items, size_t threads_n);
+
+    // message all threads to terminate gracefully join them
+    ~thread_pool();
+
+    thread_pool(const thread_pool &) = delete;
+    thread_pool &operator=(thread_pool &&) = delete;
+
+    void post_log(async_logger_ptr &&worker_ptr, const details::log_msg &msg, async_overflow_policy overflow_policy);
+    void post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy);
+    size_t overrun_counter();
+    size_t queue_size();
+
+private:
+    q_type q_;
+
+    std::vector<std::thread> threads_;
+
+    void post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy);
+    void worker_loop_();
+
+    // process next message in the queue
+    // return true if this thread should still be active (while no terminate msg
+    // was received)
+    bool process_next_msg_();
+};
+
+} // namespace details
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "thread_pool-inl.h"
+#endif

Libs/spdlog/details/windows_include.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#ifndef NOMINMAX
+#    define NOMINMAX // prevent windows redefining min/max
+#endif
+
+#ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN
+#endif
+
+#include <windows.h>

Libs/spdlog/fmt/bin_to_hex.h

@@ -0,0 +1,216 @@
+//
+// Copyright(c) 2015 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+#include <cctype>
+
+//
+// Support for logging binary data as hex
+// format flags, any combination of the followng:
+// {:X} - print in uppercase.
+// {:s} - don't separate each byte with space.
+// {:p} - don't print the position on each line start.
+// {:n} - don't split the output to lines.
+// {:a} - show ASCII if :n is not set
+
+//
+// Examples:
+//
+// std::vector<char> v(200, 0x0b);
+// logger->info("Some buffer {}", spdlog::to_hex(v));
+// char buf[128];
+// logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf)));
+// logger->info("Some buffer {:X}", spdlog::to_hex(std::begin(buf), std::end(buf), 16));
+
+namespace spdlog {
+namespace details {
+
+template<typename It>
+class dump_info
+{
+public:
+    dump_info(It range_begin, It range_end, size_t size_per_line)
+        : begin_(range_begin)
+        , end_(range_end)
+        , size_per_line_(size_per_line)
+    {}
+
+    It begin() const
+    {
+        return begin_;
+    }
+    It end() const
+    {
+        return end_;
+    }
+    size_t size_per_line() const
+    {
+        return size_per_line_;
+    }
+
+private:
+    It begin_, end_;
+    size_t size_per_line_;
+};
+} // namespace details
+
+// create a dump_info that wraps the given container
+template<typename Container>
+inline details::dump_info<typename Container::const_iterator> to_hex(const Container &container, size_t size_per_line = 32)
+{
+    static_assert(sizeof(typename Container::value_type) == 1, "sizeof(Container::value_type) != 1");
+    using Iter = typename Container::const_iterator;
+    return details::dump_info<Iter>(std::begin(container), std::end(container), size_per_line);
+}
+
+// create dump_info from ranges
+template<typename It>
+inline details::dump_info<It> to_hex(const It range_begin, const It range_end, size_t size_per_line = 32)
+{
+    return details::dump_info<It>(range_begin, range_end, size_per_line);
+}
+
+} // namespace spdlog
+
+namespace fmt {
+
+template<typename T>
+struct formatter<spdlog::details::dump_info<T>>
+{
+    const char delimiter = ' ';
+    bool put_newlines = true;
+    bool put_delimiters = true;
+    bool use_uppercase = false;
+    bool put_positions = true; // position on start of each line
+    bool show_ascii = false;
+
+    // parse the format string flags
+    template<typename ParseContext>
+    FMT_CONSTEXPR auto parse(ParseContext &ctx) -> decltype(ctx.begin())
+    {
+        auto it = ctx.begin();
+        while (it != ctx.end() && *it != '}')
+        {
+            switch (*it)
+            {
+            case 'X':
+                use_uppercase = true;
+                break;
+            case 's':
+                put_delimiters = false;
+                break;
+            case 'p':
+                put_positions = false;
+                break;
+            case 'n':
+                put_newlines = false;
+                show_ascii = false;
+                break;
+            case 'a':
+                if (put_newlines)
+                {
+                    show_ascii = true;
+                }
+                break;
+            }
+
+            ++it;
+        }
+        return it;
+    }
+
+    // format the given bytes range as hex
+    template<typename FormatContext, typename Container>
+    auto format(const spdlog::details::dump_info<Container> &the_range, FormatContext &ctx) -> decltype(ctx.out())
+    {
+        SPDLOG_CONSTEXPR const char *hex_upper = "0123456789ABCDEF";
+        SPDLOG_CONSTEXPR const char *hex_lower = "0123456789abcdef";
+        const char *hex_chars = use_uppercase ? hex_upper : hex_lower;
+
+#if FMT_VERSION < 60000
+        auto inserter = ctx.begin();
+#else
+        auto inserter = ctx.out();
+#endif
+
+        int size_per_line = static_cast<int>(the_range.size_per_line());
+        auto start_of_line = the_range.begin();
+        for (auto i = the_range.begin(); i != the_range.end(); i++)
+        {
+            auto ch = static_cast<unsigned char>(*i);
+
+            if (put_newlines && (i == the_range.begin() || i - start_of_line >= size_per_line))
+            {
+                if (show_ascii && i != the_range.begin())
+                {
+                    *inserter++ = delimiter;
+                    *inserter++ = delimiter;
+                    for (auto j = start_of_line; j < i; j++)
+                    {
+                        auto pc = static_cast<unsigned char>(*j);
+                        *inserter++ = std::isprint(pc) ? static_cast<char>(*j) : '.';
+                    }
+                }
+
+                put_newline(inserter, static_cast<size_t>(i - the_range.begin()));
+
+                // put first byte without delimiter in front of it
+                *inserter++ = hex_chars[(ch >> 4) & 0x0f];
+                *inserter++ = hex_chars[ch & 0x0f];
+                start_of_line = i;
+                continue;
+            }
+
+            if (put_delimiters)
+            {
+                *inserter++ = delimiter;
+            }
+
+            *inserter++ = hex_chars[(ch >> 4) & 0x0f];
+            *inserter++ = hex_chars[ch & 0x0f];
+        }
+        if (show_ascii) // add ascii to last line
+        {
+            if (the_range.end() - the_range.begin() > size_per_line)
+            {
+                auto blank_num = size_per_line - (the_range.end() - start_of_line);
+                while (blank_num-- > 0)
+                {
+                    *inserter++ = delimiter;
+                    *inserter++ = delimiter;
+                    if (put_delimiters)
+                    {
+                        *inserter++ = delimiter;
+                    }
+                }
+            }
+            *inserter++ = delimiter;
+            *inserter++ = delimiter;
+            for (auto j = start_of_line; j != the_range.end(); j++)
+            {
+                auto pc = static_cast<unsigned char>(*j);
+                *inserter++ = std::isprint(pc) ? static_cast<char>(*j) : '.';
+            }
+        }
+        return inserter;
+    }
+
+    // put newline(and position header)
+    template<typename It>
+    void put_newline(It inserter, std::size_t pos)
+    {
+#ifdef _WIN32
+        *inserter++ = '\r';
+#endif
+        *inserter++ = '\n';
+
+        if (put_positions)
+        {
+            fmt::format_to(inserter, "{:04X}: ", pos);
+        }
+    }
+};
+} // namespace fmt

Libs/spdlog/fmt/bundled/args.h

@@ -0,0 +1,232 @@
+// Formatting library for C++ - dynamic format arguments
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_ARGS_H_
+#define FMT_ARGS_H_
+
+#include <functional>  // std::reference_wrapper
+#include <memory>      // std::unique_ptr
+#include <vector>
+
+#include "core.h"
+
+FMT_BEGIN_NAMESPACE
+
+namespace detail {
+
+template <typename T> struct is_reference_wrapper : std::false_type {};
+template <typename T>
+struct is_reference_wrapper<std::reference_wrapper<T>> : std::true_type {};
+
+template <typename T> const T& unwrap(const T& v) { return v; }
+template <typename T> const T& unwrap(const std::reference_wrapper<T>& v) {
+  return static_cast<const T&>(v);
+}
+
+class dynamic_arg_list {
+  // Workaround for clang's -Wweak-vtables. Unlike for regular classes, for
+  // templates it doesn't complain about inability to deduce single translation
+  // unit for placing vtable. So storage_node_base is made a fake template.
+  template <typename = void> struct node {
+    virtual ~node() = default;
+    std::unique_ptr<node<>> next;
+  };
+
+  template <typename T> struct typed_node : node<> {
+    T value;
+
+    template <typename Arg>
+    FMT_CONSTEXPR typed_node(const Arg& arg) : value(arg) {}
+
+    template <typename Char>
+    FMT_CONSTEXPR typed_node(const basic_string_view<Char>& arg)
+        : value(arg.data(), arg.size()) {}
+  };
+
+  std::unique_ptr<node<>> head_;
+
+ public:
+  template <typename T, typename Arg> const T& push(const Arg& arg) {
+    auto new_node = std::unique_ptr<typed_node<T>>(new typed_node<T>(arg));
+    auto& value = new_node->value;
+    new_node->next = std::move(head_);
+    head_ = std::move(new_node);
+    return value;
+  }
+};
+}  // namespace detail
+
+/**
+  \rst
+  A dynamic version of `fmt::format_arg_store`.
+  It's equipped with a storage to potentially temporary objects which lifetimes
+  could be shorter than the format arguments object.
+
+  It can be implicitly converted into `~fmt::basic_format_args` for passing
+  into type-erased formatting functions such as `~fmt::vformat`.
+  \endrst
+ */
+template <typename Context>
+class dynamic_format_arg_store
+#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
+    // Workaround a GCC template argument substitution bug.
+    : public basic_format_args<Context>
+#endif
+{
+ private:
+  using char_type = typename Context::char_type;
+
+  template <typename T> struct need_copy {
+    static constexpr detail::type mapped_type =
+        detail::mapped_type_constant<T, Context>::value;
+
+    enum {
+      value = !(detail::is_reference_wrapper<T>::value ||
+                std::is_same<T, basic_string_view<char_type>>::value ||
+                std::is_same<T, detail::std_string_view<char_type>>::value ||
+                (mapped_type != detail::type::cstring_type &&
+                 mapped_type != detail::type::string_type &&
+                 mapped_type != detail::type::custom_type))
+    };
+  };
+
+  template <typename T>
+  using stored_type = conditional_t<detail::is_string<T>::value &&
+                                        !has_formatter<T, Context>::value &&
+                                        !detail::is_reference_wrapper<T>::value,
+                                    std::basic_string<char_type>, T>;
+
+  // Storage of basic_format_arg must be contiguous.
+  std::vector<basic_format_arg<Context>> data_;
+  std::vector<detail::named_arg_info<char_type>> named_info_;
+
+  // Storage of arguments not fitting into basic_format_arg must grow
+  // without relocation because items in data_ refer to it.
+  detail::dynamic_arg_list dynamic_args_;
+
+  friend class basic_format_args<Context>;
+
+  unsigned long long get_types() const {
+    return detail::is_unpacked_bit | data_.size() |
+           (named_info_.empty()
+                ? 0ULL
+                : static_cast<unsigned long long>(detail::has_named_args_bit));
+  }
+
+  const basic_format_arg<Context>* data() const {
+    return named_info_.empty() ? data_.data() : data_.data() + 1;
+  }
+
+  template <typename T> void emplace_arg(const T& arg) {
+    data_.emplace_back(detail::make_arg<Context>(arg));
+  }
+
+  template <typename T>
+  void emplace_arg(const detail::named_arg<char_type, T>& arg) {
+    if (named_info_.empty()) {
+      constexpr const detail::named_arg_info<char_type>* zero_ptr{nullptr};
+      data_.insert(data_.begin(), {zero_ptr, 0});
+    }
+    data_.emplace_back(detail::make_arg<Context>(detail::unwrap(arg.value)));
+    auto pop_one = [](std::vector<basic_format_arg<Context>>* data) {
+      data->pop_back();
+    };
+    std::unique_ptr<std::vector<basic_format_arg<Context>>, decltype(pop_one)>
+        guard{&data_, pop_one};
+    named_info_.push_back({arg.name, static_cast<int>(data_.size() - 2u)});
+    data_[0].value_.named_args = {named_info_.data(), named_info_.size()};
+    guard.release();
+  }
+
+ public:
+  /**
+    \rst
+    Adds an argument into the dynamic store for later passing to a formatting
+    function.
+
+    Note that custom types and string types (but not string views) are copied
+    into the store dynamically allocating memory if necessary.
+
+    **Example**::
+
+      fmt::dynamic_format_arg_store<fmt::format_context> store;
+      store.push_back(42);
+      store.push_back("abc");
+      store.push_back(1.5f);
+      std::string result = fmt::vformat("{} and {} and {}", store);
+    \endrst
+  */
+  template <typename T> void push_back(const T& arg) {
+    if (detail::const_check(need_copy<T>::value))
+      emplace_arg(dynamic_args_.push<stored_type<T>>(arg));
+    else
+      emplace_arg(detail::unwrap(arg));
+  }
+
+  /**
+    \rst
+    Adds a reference to the argument into the dynamic store for later passing to
+    a formatting function.
+
+    **Example**::
+
+      fmt::dynamic_format_arg_store<fmt::format_context> store;
+      char band[] = "Rolling Stones";
+      store.push_back(std::cref(band));
+      band[9] = 'c'; // Changing str affects the output.
+      std::string result = fmt::vformat("{}", store);
+      // result == "Rolling Scones"
+    \endrst
+  */
+  template <typename T> void push_back(std::reference_wrapper<T> arg) {
+    static_assert(
+        need_copy<T>::value,
+        "objects of built-in types and string views are always copied");
+    emplace_arg(arg.get());
+  }
+
+  /**
+    Adds named argument into the dynamic store for later passing to a formatting
+    function. ``std::reference_wrapper`` is supported to avoid copying of the
+    argument. The name is always copied into the store.
+  */
+  template <typename T>
+  void push_back(const detail::named_arg<char_type, T>& arg) {
+    const char_type* arg_name =
+        dynamic_args_.push<std::basic_string<char_type>>(arg.name).c_str();
+    if (detail::const_check(need_copy<T>::value)) {
+      emplace_arg(
+          fmt::arg(arg_name, dynamic_args_.push<stored_type<T>>(arg.value)));
+    } else {
+      emplace_arg(fmt::arg(arg_name, arg.value));
+    }
+  }
+
+  /** Erase all elements from the store */
+  void clear() {
+    data_.clear();
+    named_info_.clear();
+    dynamic_args_ = detail::dynamic_arg_list();
+  }
+
+  /**
+    \rst
+    Reserves space to store at least *new_cap* arguments including
+    *new_cap_named* named arguments.
+    \endrst
+  */
+  void reserve(size_t new_cap, size_t new_cap_named) {
+    FMT_ASSERT(new_cap >= new_cap_named,
+               "Set of arguments includes set of named arguments");
+    data_.reserve(new_cap);
+    named_info_.reserve(new_cap_named);
+  }
+};
+
+FMT_END_NAMESPACE
+
+#endif  // FMT_ARGS_H_

Libs/spdlog/fmt/bundled/color.h

@@ -0,0 +1,627 @@
+// Formatting library for C++ - color support
+//
+// Copyright (c) 2018 - present, Victor Zverovich and fmt contributors
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_COLOR_H_
+#define FMT_COLOR_H_
+
+#include "format.h"
+
+// __declspec(deprecated) is broken in some MSVC versions.
+#if FMT_MSC_VER
+#  define FMT_DEPRECATED_NONMSVC
+#else
+#  define FMT_DEPRECATED_NONMSVC FMT_DEPRECATED
+#endif
+
+FMT_BEGIN_NAMESPACE
+FMT_MODULE_EXPORT_BEGIN
+
+enum class color : uint32_t {
+  alice_blue = 0xF0F8FF,               // rgb(240,248,255)
+  antique_white = 0xFAEBD7,            // rgb(250,235,215)
+  aqua = 0x00FFFF,                     // rgb(0,255,255)
+  aquamarine = 0x7FFFD4,               // rgb(127,255,212)
+  azure = 0xF0FFFF,                    // rgb(240,255,255)
+  beige = 0xF5F5DC,                    // rgb(245,245,220)
+  bisque = 0xFFE4C4,                   // rgb(255,228,196)
+  black = 0x000000,                    // rgb(0,0,0)
+  blanched_almond = 0xFFEBCD,          // rgb(255,235,205)
+  blue = 0x0000FF,                     // rgb(0,0,255)
+  blue_violet = 0x8A2BE2,              // rgb(138,43,226)
+  brown = 0xA52A2A,                    // rgb(165,42,42)
+  burly_wood = 0xDEB887,               // rgb(222,184,135)
+  cadet_blue = 0x5F9EA0,               // rgb(95,158,160)
+  chartreuse = 0x7FFF00,               // rgb(127,255,0)
+  chocolate = 0xD2691E,                // rgb(210,105,30)
+  coral = 0xFF7F50,                    // rgb(255,127,80)
+  cornflower_blue = 0x6495ED,          // rgb(100,149,237)
+  cornsilk = 0xFFF8DC,                 // rgb(255,248,220)
+  crimson = 0xDC143C,                  // rgb(220,20,60)
+  cyan = 0x00FFFF,                     // rgb(0,255,255)
+  dark_blue = 0x00008B,                // rgb(0,0,139)
+  dark_cyan = 0x008B8B,                // rgb(0,139,139)
+  dark_golden_rod = 0xB8860B,          // rgb(184,134,11)
+  dark_gray = 0xA9A9A9,                // rgb(169,169,169)
+  dark_green = 0x006400,               // rgb(0,100,0)
+  dark_khaki = 0xBDB76B,               // rgb(189,183,107)
+  dark_magenta = 0x8B008B,             // rgb(139,0,139)
+  dark_olive_green = 0x556B2F,         // rgb(85,107,47)
+  dark_orange = 0xFF8C00,              // rgb(255,140,0)
+  dark_orchid = 0x9932CC,              // rgb(153,50,204)
+  dark_red = 0x8B0000,                 // rgb(139,0,0)
+  dark_salmon = 0xE9967A,              // rgb(233,150,122)
+  dark_sea_green = 0x8FBC8F,           // rgb(143,188,143)
+  dark_slate_blue = 0x483D8B,          // rgb(72,61,139)
+  dark_slate_gray = 0x2F4F4F,          // rgb(47,79,79)
+  dark_turquoise = 0x00CED1,           // rgb(0,206,209)
+  dark_violet = 0x9400D3,              // rgb(148,0,211)
+  deep_pink = 0xFF1493,                // rgb(255,20,147)
+  deep_sky_blue = 0x00BFFF,            // rgb(0,191,255)
+  dim_gray = 0x696969,                 // rgb(105,105,105)
+  dodger_blue = 0x1E90FF,              // rgb(30,144,255)
+  fire_brick = 0xB22222,               // rgb(178,34,34)
+  floral_white = 0xFFFAF0,             // rgb(255,250,240)
+  forest_green = 0x228B22,             // rgb(34,139,34)
+  fuchsia = 0xFF00FF,                  // rgb(255,0,255)
+  gainsboro = 0xDCDCDC,                // rgb(220,220,220)
+  ghost_white = 0xF8F8FF,              // rgb(248,248,255)
+  gold = 0xFFD700,                     // rgb(255,215,0)
+  golden_rod = 0xDAA520,               // rgb(218,165,32)
+  gray = 0x808080,                     // rgb(128,128,128)
+  green = 0x008000,                    // rgb(0,128,0)
+  green_yellow = 0xADFF2F,             // rgb(173,255,47)
+  honey_dew = 0xF0FFF0,                // rgb(240,255,240)
+  hot_pink = 0xFF69B4,                 // rgb(255,105,180)
+  indian_red = 0xCD5C5C,               // rgb(205,92,92)
+  indigo = 0x4B0082,                   // rgb(75,0,130)
+  ivory = 0xFFFFF0,                    // rgb(255,255,240)
+  khaki = 0xF0E68C,                    // rgb(240,230,140)
+  lavender = 0xE6E6FA,                 // rgb(230,230,250)
+  lavender_blush = 0xFFF0F5,           // rgb(255,240,245)
+  lawn_green = 0x7CFC00,               // rgb(124,252,0)
+  lemon_chiffon = 0xFFFACD,            // rgb(255,250,205)
+  light_blue = 0xADD8E6,               // rgb(173,216,230)
+  light_coral = 0xF08080,              // rgb(240,128,128)
+  light_cyan = 0xE0FFFF,               // rgb(224,255,255)
+  light_golden_rod_yellow = 0xFAFAD2,  // rgb(250,250,210)
+  light_gray = 0xD3D3D3,               // rgb(211,211,211)
+  light_green = 0x90EE90,              // rgb(144,238,144)
+  light_pink = 0xFFB6C1,               // rgb(255,182,193)
+  light_salmon = 0xFFA07A,             // rgb(255,160,122)
+  light_sea_green = 0x20B2AA,          // rgb(32,178,170)
+  light_sky_blue = 0x87CEFA,           // rgb(135,206,250)
+  light_slate_gray = 0x778899,         // rgb(119,136,153)
+  light_steel_blue = 0xB0C4DE,         // rgb(176,196,222)
+  light_yellow = 0xFFFFE0,             // rgb(255,255,224)
+  lime = 0x00FF00,                     // rgb(0,255,0)
+  lime_green = 0x32CD32,               // rgb(50,205,50)
+  linen = 0xFAF0E6,                    // rgb(250,240,230)
+  magenta = 0xFF00FF,                  // rgb(255,0,255)
+  maroon = 0x800000,                   // rgb(128,0,0)
+  medium_aquamarine = 0x66CDAA,        // rgb(102,205,170)
+  medium_blue = 0x0000CD,              // rgb(0,0,205)
+  medium_orchid = 0xBA55D3,            // rgb(186,85,211)
+  medium_purple = 0x9370DB,            // rgb(147,112,219)
+  medium_sea_green = 0x3CB371,         // rgb(60,179,113)
+  medium_slate_blue = 0x7B68EE,        // rgb(123,104,238)
+  medium_spring_green = 0x00FA9A,      // rgb(0,250,154)
+  medium_turquoise = 0x48D1CC,         // rgb(72,209,204)
+  medium_violet_red = 0xC71585,        // rgb(199,21,133)
+  midnight_blue = 0x191970,            // rgb(25,25,112)
+  mint_cream = 0xF5FFFA,               // rgb(245,255,250)
+  misty_rose = 0xFFE4E1,               // rgb(255,228,225)
+  moccasin = 0xFFE4B5,                 // rgb(255,228,181)
+  navajo_white = 0xFFDEAD,             // rgb(255,222,173)
+  navy = 0x000080,                     // rgb(0,0,128)
+  old_lace = 0xFDF5E6,                 // rgb(253,245,230)
+  olive = 0x808000,                    // rgb(128,128,0)
+  olive_drab = 0x6B8E23,               // rgb(107,142,35)
+  orange = 0xFFA500,                   // rgb(255,165,0)
+  orange_red = 0xFF4500,               // rgb(255,69,0)
+  orchid = 0xDA70D6,                   // rgb(218,112,214)
+  pale_golden_rod = 0xEEE8AA,          // rgb(238,232,170)
+  pale_green = 0x98FB98,               // rgb(152,251,152)
+  pale_turquoise = 0xAFEEEE,           // rgb(175,238,238)
+  pale_violet_red = 0xDB7093,          // rgb(219,112,147)
+  papaya_whip = 0xFFEFD5,              // rgb(255,239,213)
+  peach_puff = 0xFFDAB9,               // rgb(255,218,185)
+  peru = 0xCD853F,                     // rgb(205,133,63)
+  pink = 0xFFC0CB,                     // rgb(255,192,203)
+  plum = 0xDDA0DD,                     // rgb(221,160,221)
+  powder_blue = 0xB0E0E6,              // rgb(176,224,230)
+  purple = 0x800080,                   // rgb(128,0,128)
+  rebecca_purple = 0x663399,           // rgb(102,51,153)
+  red = 0xFF0000,                      // rgb(255,0,0)
+  rosy_brown = 0xBC8F8F,               // rgb(188,143,143)
+  royal_blue = 0x4169E1,               // rgb(65,105,225)
+  saddle_brown = 0x8B4513,             // rgb(139,69,19)
+  salmon = 0xFA8072,                   // rgb(250,128,114)
+  sandy_brown = 0xF4A460,              // rgb(244,164,96)
+  sea_green = 0x2E8B57,                // rgb(46,139,87)
+  sea_shell = 0xFFF5EE,                // rgb(255,245,238)
+  sienna = 0xA0522D,                   // rgb(160,82,45)
+  silver = 0xC0C0C0,                   // rgb(192,192,192)
+  sky_blue = 0x87CEEB,                 // rgb(135,206,235)
+  slate_blue = 0x6A5ACD,               // rgb(106,90,205)
+  slate_gray = 0x708090,               // rgb(112,128,144)
+  snow = 0xFFFAFA,                     // rgb(255,250,250)
+  spring_green = 0x00FF7F,             // rgb(0,255,127)
+  steel_blue = 0x4682B4,               // rgb(70,130,180)
+  tan = 0xD2B48C,                      // rgb(210,180,140)
+  teal = 0x008080,                     // rgb(0,128,128)
+  thistle = 0xD8BFD8,                  // rgb(216,191,216)
+  tomato = 0xFF6347,                   // rgb(255,99,71)
+  turquoise = 0x40E0D0,                // rgb(64,224,208)
+  violet = 0xEE82EE,                   // rgb(238,130,238)
+  wheat = 0xF5DEB3,                    // rgb(245,222,179)
+  white = 0xFFFFFF,                    // rgb(255,255,255)
+  white_smoke = 0xF5F5F5,              // rgb(245,245,245)
+  yellow = 0xFFFF00,                   // rgb(255,255,0)
+  yellow_green = 0x9ACD32              // rgb(154,205,50)
+};                                     // enum class color
+
+enum class terminal_color : uint8_t {
+  black = 30,
+  red,
+  green,
+  yellow,
+  blue,
+  magenta,
+  cyan,
+  white,
+  bright_black = 90,
+  bright_red,
+  bright_green,
+  bright_yellow,
+  bright_blue,
+  bright_magenta,
+  bright_cyan,
+  bright_white
+};
+
+enum class emphasis : uint8_t {
+  bold = 1,
+  italic = 1 << 1,
+  underline = 1 << 2,
+  strikethrough = 1 << 3
+};
+
+// rgb is a struct for red, green and blue colors.
+// Using the name "rgb" makes some editors show the color in a tooltip.
+struct rgb {
+  FMT_CONSTEXPR rgb() : r(0), g(0), b(0) {}
+  FMT_CONSTEXPR rgb(uint8_t r_, uint8_t g_, uint8_t b_) : r(r_), g(g_), b(b_) {}
+  FMT_CONSTEXPR rgb(uint32_t hex)
+      : r((hex >> 16) & 0xFF), g((hex >> 8) & 0xFF), b(hex & 0xFF) {}
+  FMT_CONSTEXPR rgb(color hex)
+      : r((uint32_t(hex) >> 16) & 0xFF),
+        g((uint32_t(hex) >> 8) & 0xFF),
+        b(uint32_t(hex) & 0xFF) {}
+  uint8_t r;
+  uint8_t g;
+  uint8_t b;
+};
+
+FMT_BEGIN_DETAIL_NAMESPACE
+
+// color is a struct of either a rgb color or a terminal color.
+struct color_type {
+  FMT_CONSTEXPR color_type() FMT_NOEXCEPT : is_rgb(), value{} {}
+  FMT_CONSTEXPR color_type(color rgb_color) FMT_NOEXCEPT : is_rgb(true),
+                                                           value{} {
+    value.rgb_color = static_cast<uint32_t>(rgb_color);
+  }
+  FMT_CONSTEXPR color_type(rgb rgb_color) FMT_NOEXCEPT : is_rgb(true), value{} {
+    value.rgb_color = (static_cast<uint32_t>(rgb_color.r) << 16) |
+                      (static_cast<uint32_t>(rgb_color.g) << 8) | rgb_color.b;
+  }
+  FMT_CONSTEXPR color_type(terminal_color term_color) FMT_NOEXCEPT : is_rgb(),
+                                                                     value{} {
+    value.term_color = static_cast<uint8_t>(term_color);
+  }
+  bool is_rgb;
+  union color_union {
+    uint8_t term_color;
+    uint32_t rgb_color;
+  } value;
+};
+
+FMT_END_DETAIL_NAMESPACE
+
+/** A text style consisting of foreground and background colors and emphasis. */
+class text_style {
+ public:
+  FMT_CONSTEXPR text_style(emphasis em = emphasis()) FMT_NOEXCEPT
+      : set_foreground_color(),
+        set_background_color(),
+        ems(em) {}
+
+  FMT_CONSTEXPR text_style& operator|=(const text_style& rhs) {
+    if (!set_foreground_color) {
+      set_foreground_color = rhs.set_foreground_color;
+      foreground_color = rhs.foreground_color;
+    } else if (rhs.set_foreground_color) {
+      if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
+        FMT_THROW(format_error("can't OR a terminal color"));
+      foreground_color.value.rgb_color |= rhs.foreground_color.value.rgb_color;
+    }
+
+    if (!set_background_color) {
+      set_background_color = rhs.set_background_color;
+      background_color = rhs.background_color;
+    } else if (rhs.set_background_color) {
+      if (!background_color.is_rgb || !rhs.background_color.is_rgb)
+        FMT_THROW(format_error("can't OR a terminal color"));
+      background_color.value.rgb_color |= rhs.background_color.value.rgb_color;
+    }
+
+    ems = static_cast<emphasis>(static_cast<uint8_t>(ems) |
+                                static_cast<uint8_t>(rhs.ems));
+    return *this;
+  }
+
+  friend FMT_CONSTEXPR text_style operator|(text_style lhs,
+                                            const text_style& rhs) {
+    return lhs |= rhs;
+  }
+
+  FMT_DEPRECATED_NONMSVC FMT_CONSTEXPR text_style& operator&=(
+      const text_style& rhs) {
+    return and_assign(rhs);
+  }
+
+  FMT_DEPRECATED_NONMSVC friend FMT_CONSTEXPR text_style
+  operator&(text_style lhs, const text_style& rhs) {
+    return lhs.and_assign(rhs);
+  }
+
+  FMT_CONSTEXPR bool has_foreground() const FMT_NOEXCEPT {
+    return set_foreground_color;
+  }
+  FMT_CONSTEXPR bool has_background() const FMT_NOEXCEPT {
+    return set_background_color;
+  }
+  FMT_CONSTEXPR bool has_emphasis() const FMT_NOEXCEPT {
+    return static_cast<uint8_t>(ems) != 0;
+  }
+  FMT_CONSTEXPR detail::color_type get_foreground() const FMT_NOEXCEPT {
+    FMT_ASSERT(has_foreground(), "no foreground specified for this style");
+    return foreground_color;
+  }
+  FMT_CONSTEXPR detail::color_type get_background() const FMT_NOEXCEPT {
+    FMT_ASSERT(has_background(), "no background specified for this style");
+    return background_color;
+  }
+  FMT_CONSTEXPR emphasis get_emphasis() const FMT_NOEXCEPT {
+    FMT_ASSERT(has_emphasis(), "no emphasis specified for this style");
+    return ems;
+  }
+
+ private:
+  FMT_CONSTEXPR text_style(bool is_foreground,
+                           detail::color_type text_color) FMT_NOEXCEPT
+      : set_foreground_color(),
+        set_background_color(),
+        ems() {
+    if (is_foreground) {
+      foreground_color = text_color;
+      set_foreground_color = true;
+    } else {
+      background_color = text_color;
+      set_background_color = true;
+    }
+  }
+
+  // DEPRECATED!
+  FMT_CONSTEXPR text_style& and_assign(const text_style& rhs) {
+    if (!set_foreground_color) {
+      set_foreground_color = rhs.set_foreground_color;
+      foreground_color = rhs.foreground_color;
+    } else if (rhs.set_foreground_color) {
+      if (!foreground_color.is_rgb || !rhs.foreground_color.is_rgb)
+        FMT_THROW(format_error("can't AND a terminal color"));
+      foreground_color.value.rgb_color &= rhs.foreground_color.value.rgb_color;
+    }
+
+    if (!set_background_color) {
+      set_background_color = rhs.set_background_color;
+      background_color = rhs.background_color;
+    } else if (rhs.set_background_color) {
+      if (!background_color.is_rgb || !rhs.background_color.is_rgb)
+        FMT_THROW(format_error("can't AND a terminal color"));
+      background_color.value.rgb_color &= rhs.background_color.value.rgb_color;
+    }
+
+    ems = static_cast<emphasis>(static_cast<uint8_t>(ems) &
+                                static_cast<uint8_t>(rhs.ems));
+    return *this;
+  }
+
+  friend FMT_CONSTEXPR_DECL text_style fg(detail::color_type foreground)
+      FMT_NOEXCEPT;
+
+  friend FMT_CONSTEXPR_DECL text_style bg(detail::color_type background)
+      FMT_NOEXCEPT;
+
+  detail::color_type foreground_color;
+  detail::color_type background_color;
+  bool set_foreground_color;
+  bool set_background_color;
+  emphasis ems;
+};
+
+/** Creates a text style from the foreground (text) color. */
+FMT_CONSTEXPR inline text_style fg(detail::color_type foreground) FMT_NOEXCEPT {
+  return text_style(true, foreground);
+}
+
+/** Creates a text style from the background color. */
+FMT_CONSTEXPR inline text_style bg(detail::color_type background) FMT_NOEXCEPT {
+  return text_style(false, background);
+}
+
+FMT_CONSTEXPR inline text_style operator|(emphasis lhs,
+                                          emphasis rhs) FMT_NOEXCEPT {
+  return text_style(lhs) | rhs;
+}
+
+FMT_BEGIN_DETAIL_NAMESPACE
+
+template <typename Char> struct ansi_color_escape {
+  FMT_CONSTEXPR ansi_color_escape(detail::color_type text_color,
+                                  const char* esc) FMT_NOEXCEPT {
+    // If we have a terminal color, we need to output another escape code
+    // sequence.
+    if (!text_color.is_rgb) {
+      bool is_background = esc == string_view("\x1b[48;2;");
+      uint32_t value = text_color.value.term_color;
+      // Background ASCII codes are the same as the foreground ones but with
+      // 10 more.
+      if (is_background) value += 10u;
+
+      size_t index = 0;
+      buffer[index++] = static_cast<Char>('\x1b');
+      buffer[index++] = static_cast<Char>('[');
+
+      if (value >= 100u) {
+        buffer[index++] = static_cast<Char>('1');
+        value %= 100u;
+      }
+      buffer[index++] = static_cast<Char>('0' + value / 10u);
+      buffer[index++] = static_cast<Char>('0' + value % 10u);
+
+      buffer[index++] = static_cast<Char>('m');
+      buffer[index++] = static_cast<Char>('\0');
+      return;
+    }
+
+    for (int i = 0; i < 7; i++) {
+      buffer[i] = static_cast<Char>(esc[i]);
+    }
+    rgb color(text_color.value.rgb_color);
+    to_esc(color.r, buffer + 7, ';');
+    to_esc(color.g, buffer + 11, ';');
+    to_esc(color.b, buffer + 15, 'm');
+    buffer[19] = static_cast<Char>(0);
+  }
+  FMT_CONSTEXPR ansi_color_escape(emphasis em) FMT_NOEXCEPT {
+    uint8_t em_codes[4] = {};
+    uint8_t em_bits = static_cast<uint8_t>(em);
+    if (em_bits & static_cast<uint8_t>(emphasis::bold)) em_codes[0] = 1;
+    if (em_bits & static_cast<uint8_t>(emphasis::italic)) em_codes[1] = 3;
+    if (em_bits & static_cast<uint8_t>(emphasis::underline)) em_codes[2] = 4;
+    if (em_bits & static_cast<uint8_t>(emphasis::strikethrough))
+      em_codes[3] = 9;
+
+    size_t index = 0;
+    for (int i = 0; i < 4; ++i) {
+      if (!em_codes[i]) continue;
+      buffer[index++] = static_cast<Char>('\x1b');
+      buffer[index++] = static_cast<Char>('[');
+      buffer[index++] = static_cast<Char>('0' + em_codes[i]);
+      buffer[index++] = static_cast<Char>('m');
+    }
+    buffer[index++] = static_cast<Char>(0);
+  }
+  FMT_CONSTEXPR operator const Char*() const FMT_NOEXCEPT { return buffer; }
+
+  FMT_CONSTEXPR const Char* begin() const FMT_NOEXCEPT { return buffer; }
+  FMT_CONSTEXPR_CHAR_TRAITS const Char* end() const FMT_NOEXCEPT {
+    return buffer + std::char_traits<Char>::length(buffer);
+  }
+
+ private:
+  Char buffer[7u + 3u * 4u + 1u];
+
+  static FMT_CONSTEXPR void to_esc(uint8_t c, Char* out,
+                                   char delimiter) FMT_NOEXCEPT {
+    out[0] = static_cast<Char>('0' + c / 100);
+    out[1] = static_cast<Char>('0' + c / 10 % 10);
+    out[2] = static_cast<Char>('0' + c % 10);
+    out[3] = static_cast<Char>(delimiter);
+  }
+};
+
+template <typename Char>
+FMT_CONSTEXPR ansi_color_escape<Char> make_foreground_color(
+    detail::color_type foreground) FMT_NOEXCEPT {
+  return ansi_color_escape<Char>(foreground, "\x1b[38;2;");
+}
+
+template <typename Char>
+FMT_CONSTEXPR ansi_color_escape<Char> make_background_color(
+    detail::color_type background) FMT_NOEXCEPT {
+  return ansi_color_escape<Char>(background, "\x1b[48;2;");
+}
+
+template <typename Char>
+FMT_CONSTEXPR ansi_color_escape<Char> make_emphasis(emphasis em) FMT_NOEXCEPT {
+  return ansi_color_escape<Char>(em);
+}
+
+template <typename Char>
+inline void fputs(const Char* chars, FILE* stream) FMT_NOEXCEPT {
+  std::fputs(chars, stream);
+}
+
+template <>
+inline void fputs<wchar_t>(const wchar_t* chars, FILE* stream) FMT_NOEXCEPT {
+  std::fputws(chars, stream);
+}
+
+template <typename Char> inline void reset_color(FILE* stream) FMT_NOEXCEPT {
+  fputs("\x1b[0m", stream);
+}
+
+template <> inline void reset_color<wchar_t>(FILE* stream) FMT_NOEXCEPT {
+  fputs(L"\x1b[0m", stream);
+}
+
+template <typename Char>
+inline void reset_color(buffer<Char>& buffer) FMT_NOEXCEPT {
+  auto reset_color = string_view("\x1b[0m");
+  buffer.append(reset_color.begin(), reset_color.end());
+}
+
+template <typename Char>
+void vformat_to(buffer<Char>& buf, const text_style& ts,
+                basic_string_view<Char> format_str,
+                basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+  bool has_style = false;
+  if (ts.has_emphasis()) {
+    has_style = true;
+    auto emphasis = detail::make_emphasis<Char>(ts.get_emphasis());
+    buf.append(emphasis.begin(), emphasis.end());
+  }
+  if (ts.has_foreground()) {
+    has_style = true;
+    auto foreground = detail::make_foreground_color<Char>(ts.get_foreground());
+    buf.append(foreground.begin(), foreground.end());
+  }
+  if (ts.has_background()) {
+    has_style = true;
+    auto background = detail::make_background_color<Char>(ts.get_background());
+    buf.append(background.begin(), background.end());
+  }
+  detail::vformat_to(buf, format_str, args, {});
+  if (has_style) detail::reset_color<Char>(buf);
+}
+
+FMT_END_DETAIL_NAMESPACE
+
+template <typename S, typename Char = char_t<S>>
+void vprint(std::FILE* f, const text_style& ts, const S& format,
+            basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+  basic_memory_buffer<Char> buf;
+  detail::vformat_to(buf, ts, to_string_view(format), args);
+  buf.push_back(Char(0));
+  detail::fputs(buf.data(), f);
+}
+
+/**
+  \rst
+  Formats a string and prints it to the specified file stream using ANSI
+  escape sequences to specify text formatting.
+
+  **Example**::
+
+    fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
+               "Elapsed time: {0:.2f} seconds", 1.23);
+  \endrst
+ */
+template <typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_string<S>::value)>
+void print(std::FILE* f, const text_style& ts, const S& format_str,
+           const Args&... args) {
+  vprint(f, ts, format_str,
+         fmt::make_args_checked<Args...>(format_str, args...));
+}
+
+/**
+  \rst
+  Formats a string and prints it to stdout using ANSI escape sequences to
+  specify text formatting.
+
+  **Example**::
+
+    fmt::print(fmt::emphasis::bold | fg(fmt::color::red),
+               "Elapsed time: {0:.2f} seconds", 1.23);
+  \endrst
+ */
+template <typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_string<S>::value)>
+void print(const text_style& ts, const S& format_str, const Args&... args) {
+  return print(stdout, ts, format_str, args...);
+}
+
+template <typename S, typename Char = char_t<S>>
+inline std::basic_string<Char> vformat(
+    const text_style& ts, const S& format_str,
+    basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+  basic_memory_buffer<Char> buf;
+  detail::vformat_to(buf, ts, to_string_view(format_str), args);
+  return fmt::to_string(buf);
+}
+
+/**
+  \rst
+  Formats arguments and returns the result as a string using ANSI
+  escape sequences to specify text formatting.
+
+  **Example**::
+
+    #include <fmt/color.h>
+    std::string message = fmt::format(fmt::emphasis::bold | fg(fmt::color::red),
+                                      "The answer is {}", 42);
+  \endrst
+*/
+template <typename S, typename... Args, typename Char = char_t<S>>
+inline std::basic_string<Char> format(const text_style& ts, const S& format_str,
+                                      const Args&... args) {
+  return fmt::vformat(ts, to_string_view(format_str),
+                      fmt::make_args_checked<Args...>(format_str, args...));
+}
+
+/**
+  Formats a string with the given text_style and writes the output to ``out``.
+ */
+template <typename OutputIt, typename Char,
+          FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value)>
+OutputIt vformat_to(
+    OutputIt out, const text_style& ts, basic_string_view<Char> format_str,
+    basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+  auto&& buf = detail::get_buffer<Char>(out);
+  detail::vformat_to(buf, ts, format_str, args);
+  return detail::get_iterator(buf);
+}
+
+/**
+  \rst
+  Formats arguments with the given text_style, writes the result to the output
+  iterator ``out`` and returns the iterator past the end of the output range.
+
+  **Example**::
+
+    std::vector<char> out;
+    fmt::format_to(std::back_inserter(out),
+                   fmt::emphasis::bold | fg(fmt::color::red), "{}", 42);
+  \endrst
+*/
+template <typename OutputIt, typename S, typename... Args,
+          bool enable = detail::is_output_iterator<OutputIt, char_t<S>>::value&&
+              detail::is_string<S>::value>
+inline auto format_to(OutputIt out, const text_style& ts, const S& format_str,
+                      Args&&... args) ->
+    typename std::enable_if<enable, OutputIt>::type {
+  return vformat_to(out, ts, to_string_view(format_str),
+                    fmt::make_args_checked<Args...>(format_str, args...));
+}
+
+FMT_MODULE_EXPORT_END
+FMT_END_NAMESPACE
+
+#endif  // FMT_COLOR_H_

Libs/spdlog/fmt/bundled/compile.h

@@ -0,0 +1,639 @@
+// Formatting library for C++ - experimental format string compilation
+//
+// Copyright (c) 2012 - present, Victor Zverovich and fmt contributors
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_COMPILE_H_
+#define FMT_COMPILE_H_
+
+#include "format.h"
+
+FMT_BEGIN_NAMESPACE
+namespace detail {
+
+// An output iterator that counts the number of objects written to it and
+// discards them.
+class counting_iterator {
+ private:
+  size_t count_;
+
+ public:
+  using iterator_category = std::output_iterator_tag;
+  using difference_type = std::ptrdiff_t;
+  using pointer = void;
+  using reference = void;
+  using _Unchecked_type = counting_iterator;  // Mark iterator as checked.
+
+  struct value_type {
+    template <typename T> void operator=(const T&) {}
+  };
+
+  counting_iterator() : count_(0) {}
+
+  size_t count() const { return count_; }
+
+  counting_iterator& operator++() {
+    ++count_;
+    return *this;
+  }
+  counting_iterator operator++(int) {
+    auto it = *this;
+    ++*this;
+    return it;
+  }
+
+  friend counting_iterator operator+(counting_iterator it, difference_type n) {
+    it.count_ += static_cast<size_t>(n);
+    return it;
+  }
+
+  value_type operator*() const { return {}; }
+};
+
+template <typename Char, typename InputIt>
+inline counting_iterator copy_str(InputIt begin, InputIt end,
+                                  counting_iterator it) {
+  return it + (end - begin);
+}
+
+template <typename OutputIt> class truncating_iterator_base {
+ protected:
+  OutputIt out_;
+  size_t limit_;
+  size_t count_ = 0;
+
+  truncating_iterator_base() : out_(), limit_(0) {}
+
+  truncating_iterator_base(OutputIt out, size_t limit)
+      : out_(out), limit_(limit) {}
+
+ public:
+  using iterator_category = std::output_iterator_tag;
+  using value_type = typename std::iterator_traits<OutputIt>::value_type;
+  using difference_type = std::ptrdiff_t;
+  using pointer = void;
+  using reference = void;
+  using _Unchecked_type =
+      truncating_iterator_base;  // Mark iterator as checked.
+
+  OutputIt base() const { return out_; }
+  size_t count() const { return count_; }
+};
+
+// An output iterator that truncates the output and counts the number of objects
+// written to it.
+template <typename OutputIt,
+          typename Enable = typename std::is_void<
+              typename std::iterator_traits<OutputIt>::value_type>::type>
+class truncating_iterator;
+
+template <typename OutputIt>
+class truncating_iterator<OutputIt, std::false_type>
+    : public truncating_iterator_base<OutputIt> {
+  mutable typename truncating_iterator_base<OutputIt>::value_type blackhole_;
+
+ public:
+  using value_type = typename truncating_iterator_base<OutputIt>::value_type;
+
+  truncating_iterator() = default;
+
+  truncating_iterator(OutputIt out, size_t limit)
+      : truncating_iterator_base<OutputIt>(out, limit) {}
+
+  truncating_iterator& operator++() {
+    if (this->count_++ < this->limit_) ++this->out_;
+    return *this;
+  }
+
+  truncating_iterator operator++(int) {
+    auto it = *this;
+    ++*this;
+    return it;
+  }
+
+  value_type& operator*() const {
+    return this->count_ < this->limit_ ? *this->out_ : blackhole_;
+  }
+};
+
+template <typename OutputIt>
+class truncating_iterator<OutputIt, std::true_type>
+    : public truncating_iterator_base<OutputIt> {
+ public:
+  truncating_iterator() = default;
+
+  truncating_iterator(OutputIt out, size_t limit)
+      : truncating_iterator_base<OutputIt>(out, limit) {}
+
+  template <typename T> truncating_iterator& operator=(T val) {
+    if (this->count_++ < this->limit_) *this->out_++ = val;
+    return *this;
+  }
+
+  truncating_iterator& operator++() { return *this; }
+  truncating_iterator& operator++(int) { return *this; }
+  truncating_iterator& operator*() { return *this; }
+};
+
+// A compile-time string which is compiled into fast formatting code.
+class compiled_string {};
+
+template <typename S>
+struct is_compiled_string : std::is_base_of<compiled_string, S> {};
+
+/**
+  \rst
+  Converts a string literal *s* into a format string that will be parsed at
+  compile time and converted into efficient formatting code. Requires C++17
+  ``constexpr if`` compiler support.
+
+  **Example**::
+
+    // Converts 42 into std::string using the most efficient method and no
+    // runtime format string processing.
+    std::string s = fmt::format(FMT_COMPILE("{}"), 42);
+  \endrst
+ */
+#ifdef __cpp_if_constexpr
+#  define FMT_COMPILE(s) \
+    FMT_STRING_IMPL(s, fmt::detail::compiled_string, explicit)
+#else
+#  define FMT_COMPILE(s) FMT_STRING(s)
+#endif
+
+#if FMT_USE_NONTYPE_TEMPLATE_PARAMETERS
+template <typename Char, size_t N,
+          fmt::detail_exported::fixed_string<Char, N> Str>
+struct udl_compiled_string : compiled_string {
+  using char_type = Char;
+  constexpr operator basic_string_view<char_type>() const {
+    return {Str.data, N - 1};
+  }
+};
+#endif
+
+template <typename T, typename... Tail>
+const T& first(const T& value, const Tail&...) {
+  return value;
+}
+
+#ifdef __cpp_if_constexpr
+template <typename... Args> struct type_list {};
+
+// Returns a reference to the argument at index N from [first, rest...].
+template <int N, typename T, typename... Args>
+constexpr const auto& get([[maybe_unused]] const T& first,
+                          [[maybe_unused]] const Args&... rest) {
+  static_assert(N < 1 + sizeof...(Args), "index is out of bounds");
+  if constexpr (N == 0)
+    return first;
+  else
+    return get<N - 1>(rest...);
+}
+
+template <typename Char, typename... Args>
+constexpr int get_arg_index_by_name(basic_string_view<Char> name,
+                                    type_list<Args...>) {
+  return get_arg_index_by_name<Args...>(name);
+}
+
+template <int N, typename> struct get_type_impl;
+
+template <int N, typename... Args> struct get_type_impl<N, type_list<Args...>> {
+  using type = remove_cvref_t<decltype(get<N>(std::declval<Args>()...))>;
+};
+
+template <int N, typename T>
+using get_type = typename get_type_impl<N, T>::type;
+
+template <typename T> struct is_compiled_format : std::false_type {};
+
+template <typename Char> struct text {
+  basic_string_view<Char> data;
+  using char_type = Char;
+
+  template <typename OutputIt, typename... Args>
+  constexpr OutputIt format(OutputIt out, const Args&...) const {
+    return write<Char>(out, data);
+  }
+};
+
+template <typename Char>
+struct is_compiled_format<text<Char>> : std::true_type {};
+
+template <typename Char>
+constexpr text<Char> make_text(basic_string_view<Char> s, size_t pos,
+                               size_t size) {
+  return {{&s[pos], size}};
+}
+
+template <typename Char> struct code_unit {
+  Char value;
+  using char_type = Char;
+
+  template <typename OutputIt, typename... Args>
+  constexpr OutputIt format(OutputIt out, const Args&...) const {
+    return write<Char>(out, value);
+  }
+};
+
+// This ensures that the argument type is convertible to `const T&`.
+template <typename T, int N, typename... Args>
+constexpr const T& get_arg_checked(const Args&... args) {
+  const auto& arg = get<N>(args...);
+  if constexpr (detail::is_named_arg<remove_cvref_t<decltype(arg)>>()) {
+    return arg.value;
+  } else {
+    return arg;
+  }
+}
+
+template <typename Char>
+struct is_compiled_format<code_unit<Char>> : std::true_type {};
+
+// A replacement field that refers to argument N.
+template <typename Char, typename T, int N> struct field {
+  using char_type = Char;
+
+  template <typename OutputIt, typename... Args>
+  constexpr OutputIt format(OutputIt out, const Args&... args) const {
+    return write<Char>(out, get_arg_checked<T, N>(args...));
+  }
+};
+
+template <typename Char, typename T, int N>
+struct is_compiled_format<field<Char, T, N>> : std::true_type {};
+
+// A replacement field that refers to argument with name.
+template <typename Char> struct runtime_named_field {
+  using char_type = Char;
+  basic_string_view<Char> name;
+
+  template <typename OutputIt, typename T>
+  constexpr static bool try_format_argument(
+      OutputIt& out,
+      // [[maybe_unused]] due to unused-but-set-parameter warning in GCC 7,8,9
+      [[maybe_unused]] basic_string_view<Char> arg_name, const T& arg) {
+    if constexpr (is_named_arg<typename std::remove_cv<T>::type>::value) {
+      if (arg_name == arg.name) {
+        out = write<Char>(out, arg.value);
+        return true;
+      }
+    }
+    return false;
+  }
+
+  template <typename OutputIt, typename... Args>
+  constexpr OutputIt format(OutputIt out, const Args&... args) const {
+    bool found = (try_format_argument(out, name, args) || ...);
+    if (!found) {
+      throw format_error("argument with specified name is not found");
+    }
+    return out;
+  }
+};
+
+template <typename Char>
+struct is_compiled_format<runtime_named_field<Char>> : std::true_type {};
+
+// A replacement field that refers to argument N and has format specifiers.
+template <typename Char, typename T, int N> struct spec_field {
+  using char_type = Char;
+  formatter<T, Char> fmt;
+
+  template <typename OutputIt, typename... Args>
+  constexpr FMT_INLINE OutputIt format(OutputIt out,
+                                       const Args&... args) const {
+    const auto& vargs =
+        fmt::make_format_args<basic_format_context<OutputIt, Char>>(args...);
+    basic_format_context<OutputIt, Char> ctx(out, vargs);
+    return fmt.format(get_arg_checked<T, N>(args...), ctx);
+  }
+};
+
+template <typename Char, typename T, int N>
+struct is_compiled_format<spec_field<Char, T, N>> : std::true_type {};
+
+template <typename L, typename R> struct concat {
+  L lhs;
+  R rhs;
+  using char_type = typename L::char_type;
+
+  template <typename OutputIt, typename... Args>
+  constexpr OutputIt format(OutputIt out, const Args&... args) const {
+    out = lhs.format(out, args...);
+    return rhs.format(out, args...);
+  }
+};
+
+template <typename L, typename R>
+struct is_compiled_format<concat<L, R>> : std::true_type {};
+
+template <typename L, typename R>
+constexpr concat<L, R> make_concat(L lhs, R rhs) {
+  return {lhs, rhs};
+}
+
+struct unknown_format {};
+
+template <typename Char>
+constexpr size_t parse_text(basic_string_view<Char> str, size_t pos) {
+  for (size_t size = str.size(); pos != size; ++pos) {
+    if (str[pos] == '{' || str[pos] == '}') break;
+  }
+  return pos;
+}
+
+template <typename Args, size_t POS, int ID, typename S>
+constexpr auto compile_format_string(S format_str);
+
+template <typename Args, size_t POS, int ID, typename T, typename S>
+constexpr auto parse_tail(T head, S format_str) {
+  if constexpr (POS !=
+                basic_string_view<typename S::char_type>(format_str).size()) {
+    constexpr auto tail = compile_format_string<Args, POS, ID>(format_str);
+    if constexpr (std::is_same<remove_cvref_t<decltype(tail)>,
+                               unknown_format>())
+      return tail;
+    else
+      return make_concat(head, tail);
+  } else {
+    return head;
+  }
+}
+
+template <typename T, typename Char> struct parse_specs_result {
+  formatter<T, Char> fmt;
+  size_t end;
+  int next_arg_id;
+};
+
+constexpr int manual_indexing_id = -1;
+
+template <typename T, typename Char>
+constexpr parse_specs_result<T, Char> parse_specs(basic_string_view<Char> str,
+                                                  size_t pos, int next_arg_id) {
+  str.remove_prefix(pos);
+  auto ctx = basic_format_parse_context<Char>(str, {}, next_arg_id);
+  auto f = formatter<T, Char>();
+  auto end = f.parse(ctx);
+  return {f, pos + fmt::detail::to_unsigned(end - str.data()) + 1,
+          next_arg_id == 0 ? manual_indexing_id : ctx.next_arg_id()};
+}
+
+template <typename Char> struct arg_id_handler {
+  arg_ref<Char> arg_id;
+
+  constexpr int operator()() {
+    FMT_ASSERT(false, "handler cannot be used with automatic indexing");
+    return 0;
+  }
+  constexpr int operator()(int id) {
+    arg_id = arg_ref<Char>(id);
+    return 0;
+  }
+  constexpr int operator()(basic_string_view<Char> id) {
+    arg_id = arg_ref<Char>(id);
+    return 0;
+  }
+
+  constexpr void on_error(const char* message) { throw format_error(message); }
+};
+
+template <typename Char> struct parse_arg_id_result {
+  arg_ref<Char> arg_id;
+  const Char* arg_id_end;
+};
+
+template <int ID, typename Char>
+constexpr auto parse_arg_id(const Char* begin, const Char* end) {
+  auto handler = arg_id_handler<Char>{arg_ref<Char>{}};
+  auto arg_id_end = parse_arg_id(begin, end, handler);
+  return parse_arg_id_result<Char>{handler.arg_id, arg_id_end};
+}
+
+template <typename T, typename Enable = void> struct field_type {
+  using type = remove_cvref_t<T>;
+};
+
+template <typename T>
+struct field_type<T, enable_if_t<detail::is_named_arg<T>::value>> {
+  using type = remove_cvref_t<decltype(T::value)>;
+};
+
+template <typename T, typename Args, size_t END_POS, int ARG_INDEX, int NEXT_ID,
+          typename S>
+constexpr auto parse_replacement_field_then_tail(S format_str) {
+  using char_type = typename S::char_type;
+  constexpr auto str = basic_string_view<char_type>(format_str);
+  constexpr char_type c = END_POS != str.size() ? str[END_POS] : char_type();
+  if constexpr (c == '}') {
+    return parse_tail<Args, END_POS + 1, NEXT_ID>(
+        field<char_type, typename field_type<T>::type, ARG_INDEX>(),
+        format_str);
+  } else if constexpr (c == ':') {
+    constexpr auto result = parse_specs<typename field_type<T>::type>(
+        str, END_POS + 1, NEXT_ID == manual_indexing_id ? 0 : NEXT_ID);
+    return parse_tail<Args, result.end, result.next_arg_id>(
+        spec_field<char_type, typename field_type<T>::type, ARG_INDEX>{
+            result.fmt},
+        format_str);
+  }
+}
+
+// Compiles a non-empty format string and returns the compiled representation
+// or unknown_format() on unrecognized input.
+template <typename Args, size_t POS, int ID, typename S>
+constexpr auto compile_format_string(S format_str) {
+  using char_type = typename S::char_type;
+  constexpr auto str = basic_string_view<char_type>(format_str);
+  if constexpr (str[POS] == '{') {
+    if constexpr (POS + 1 == str.size())
+      throw format_error("unmatched '{' in format string");
+    if constexpr (str[POS + 1] == '{') {
+      return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
+    } else if constexpr (str[POS + 1] == '}' || str[POS + 1] == ':') {
+      static_assert(ID != manual_indexing_id,
+                    "cannot switch from manual to automatic argument indexing");
+      constexpr auto next_id =
+          ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
+      return parse_replacement_field_then_tail<get_type<ID, Args>, Args,
+                                               POS + 1, ID, next_id>(
+          format_str);
+    } else {
+      constexpr auto arg_id_result =
+          parse_arg_id<ID>(str.data() + POS + 1, str.data() + str.size());
+      constexpr auto arg_id_end_pos = arg_id_result.arg_id_end - str.data();
+      constexpr char_type c =
+          arg_id_end_pos != str.size() ? str[arg_id_end_pos] : char_type();
+      static_assert(c == '}' || c == ':', "missing '}' in format string");
+      if constexpr (arg_id_result.arg_id.kind == arg_id_kind::index) {
+        static_assert(
+            ID == manual_indexing_id || ID == 0,
+            "cannot switch from automatic to manual argument indexing");
+        constexpr auto arg_index = arg_id_result.arg_id.val.index;
+        return parse_replacement_field_then_tail<get_type<arg_index, Args>,
+                                                 Args, arg_id_end_pos,
+                                                 arg_index, manual_indexing_id>(
+            format_str);
+      } else if constexpr (arg_id_result.arg_id.kind == arg_id_kind::name) {
+        constexpr auto arg_index =
+            get_arg_index_by_name(arg_id_result.arg_id.val.name, Args{});
+        if constexpr (arg_index != invalid_arg_index) {
+          constexpr auto next_id =
+              ID != manual_indexing_id ? ID + 1 : manual_indexing_id;
+          return parse_replacement_field_then_tail<
+              decltype(get_type<arg_index, Args>::value), Args, arg_id_end_pos,
+              arg_index, next_id>(format_str);
+        } else {
+          if constexpr (c == '}') {
+            return parse_tail<Args, arg_id_end_pos + 1, ID>(
+                runtime_named_field<char_type>{arg_id_result.arg_id.val.name},
+                format_str);
+          } else if constexpr (c == ':') {
+            return unknown_format();  // no type info for specs parsing
+          }
+        }
+      }
+    }
+  } else if constexpr (str[POS] == '}') {
+    if constexpr (POS + 1 == str.size())
+      throw format_error("unmatched '}' in format string");
+    return parse_tail<Args, POS + 2, ID>(make_text(str, POS, 1), format_str);
+  } else {
+    constexpr auto end = parse_text(str, POS + 1);
+    if constexpr (end - POS > 1) {
+      return parse_tail<Args, end, ID>(make_text(str, POS, end - POS),
+                                       format_str);
+    } else {
+      return parse_tail<Args, end, ID>(code_unit<char_type>{str[POS]},
+                                       format_str);
+    }
+  }
+}
+
+template <typename... Args, typename S,
+          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+constexpr auto compile(S format_str) {
+  constexpr auto str = basic_string_view<typename S::char_type>(format_str);
+  if constexpr (str.size() == 0) {
+    return detail::make_text(str, 0, 0);
+  } else {
+    constexpr auto result =
+        detail::compile_format_string<detail::type_list<Args...>, 0, 0>(
+            format_str);
+    return result;
+  }
+}
+#endif  // __cpp_if_constexpr
+}  // namespace detail
+
+FMT_MODULE_EXPORT_BEGIN
+
+#ifdef __cpp_if_constexpr
+
+template <typename CompiledFormat, typename... Args,
+          typename Char = typename CompiledFormat::char_type,
+          FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
+FMT_INLINE std::basic_string<Char> format(const CompiledFormat& cf,
+                                          const Args&... args) {
+  auto s = std::basic_string<Char>();
+  cf.format(std::back_inserter(s), args...);
+  return s;
+}
+
+template <typename OutputIt, typename CompiledFormat, typename... Args,
+          FMT_ENABLE_IF(detail::is_compiled_format<CompiledFormat>::value)>
+constexpr FMT_INLINE OutputIt format_to(OutputIt out, const CompiledFormat& cf,
+                                        const Args&... args) {
+  return cf.format(out, args...);
+}
+
+template <typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+FMT_INLINE std::basic_string<typename S::char_type> format(const S&,
+                                                           Args&&... args) {
+  if constexpr (std::is_same<typename S::char_type, char>::value) {
+    constexpr auto str = basic_string_view<typename S::char_type>(S());
+    if constexpr (str.size() == 2 && str[0] == '{' && str[1] == '}') {
+      const auto& first = detail::first(args...);
+      if constexpr (detail::is_named_arg<
+                        remove_cvref_t<decltype(first)>>::value) {
+        return fmt::to_string(first.value);
+      } else {
+        return fmt::to_string(first);
+      }
+    }
+  }
+  constexpr auto compiled = detail::compile<Args...>(S());
+  if constexpr (std::is_same<remove_cvref_t<decltype(compiled)>,
+                             detail::unknown_format>()) {
+    return format(static_cast<basic_string_view<typename S::char_type>>(S()),
+                  std::forward<Args>(args)...);
+  } else {
+    return format(compiled, std::forward<Args>(args)...);
+  }
+}
+
+template <typename OutputIt, typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+FMT_CONSTEXPR OutputIt format_to(OutputIt out, const S&, Args&&... args) {
+  constexpr auto compiled = detail::compile<Args...>(S());
+  if constexpr (std::is_same<remove_cvref_t<decltype(compiled)>,
+                             detail::unknown_format>()) {
+    return format_to(out,
+                     static_cast<basic_string_view<typename S::char_type>>(S()),
+                     std::forward<Args>(args)...);
+  } else {
+    return format_to(out, compiled, std::forward<Args>(args)...);
+  }
+}
+#endif
+
+template <typename OutputIt, typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+format_to_n_result<OutputIt> format_to_n(OutputIt out, size_t n,
+                                         const S& format_str, Args&&... args) {
+  auto it = format_to(detail::truncating_iterator<OutputIt>(out, n), format_str,
+                      std::forward<Args>(args)...);
+  return {it.base(), it.count()};
+}
+
+template <typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+size_t formatted_size(const S& format_str, const Args&... args) {
+  return format_to(detail::counting_iterator(), format_str, args...).count();
+}
+
+template <typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+void print(std::FILE* f, const S& format_str, const Args&... args) {
+  memory_buffer buffer;
+  format_to(std::back_inserter(buffer), format_str, args...);
+  detail::print(f, {buffer.data(), buffer.size()});
+}
+
+template <typename S, typename... Args,
+          FMT_ENABLE_IF(detail::is_compiled_string<S>::value)>
+void print(const S& format_str, const Args&... args) {
+  print(stdout, format_str, args...);
+}
+
+#if FMT_USE_NONTYPE_TEMPLATE_PARAMETERS
+inline namespace literals {
+template <detail_exported::fixed_string Str>
+constexpr detail::udl_compiled_string<
+    remove_cvref_t<decltype(Str.data[0])>,
+    sizeof(Str.data) / sizeof(decltype(Str.data[0])), Str>
+operator""_cf() {
+  return {};
+}
+}  // namespace literals
+#endif
+
+FMT_MODULE_EXPORT_END
+FMT_END_NAMESPACE
+
+#endif  // FMT_COMPILE_H_

Libs/spdlog/fmt/bundled/locale.h

@@ -0,0 +1,2 @@
+#include "xchar.h"
+#warning fmt/locale.h is deprecated, include fmt/format.h or fmt/xchar.h instead

Libs/spdlog/fmt/bundled/os.h

@@ -0,0 +1,515 @@
+// Formatting library for C++ - optional OS-specific functionality
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_OS_H_
+#define FMT_OS_H_
+
+#include <cerrno>
+#include <clocale>  // locale_t
+#include <cstddef>
+#include <cstdio>
+#include <cstdlib>       // strtod_l
+#include <system_error>  // std::system_error
+
+#if defined __APPLE__ || defined(__FreeBSD__)
+#  include <xlocale.h>  // for LC_NUMERIC_MASK on OS X
+#endif
+
+#include "format.h"
+
+// UWP doesn't provide _pipe.
+#if FMT_HAS_INCLUDE("winapifamily.h")
+#  include <winapifamily.h>
+#endif
+#if (FMT_HAS_INCLUDE(<fcntl.h>) || defined(__APPLE__) || \
+     defined(__linux__)) &&                              \
+    (!defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP))
+#  include <fcntl.h>  // for O_RDONLY
+#  define FMT_USE_FCNTL 1
+#else
+#  define FMT_USE_FCNTL 0
+#endif
+
+#ifndef FMT_POSIX
+#  if defined(_WIN32) && !defined(__MINGW32__)
+// Fix warnings about deprecated symbols.
+#    define FMT_POSIX(call) _##call
+#  else
+#    define FMT_POSIX(call) call
+#  endif
+#endif
+
+// Calls to system functions are wrapped in FMT_SYSTEM for testability.
+#ifdef FMT_SYSTEM
+#  define FMT_POSIX_CALL(call) FMT_SYSTEM(call)
+#else
+#  define FMT_SYSTEM(call) ::call
+#  ifdef _WIN32
+// Fix warnings about deprecated symbols.
+#    define FMT_POSIX_CALL(call) ::_##call
+#  else
+#    define FMT_POSIX_CALL(call) ::call
+#  endif
+#endif
+
+// Retries the expression while it evaluates to error_result and errno
+// equals to EINTR.
+#ifndef _WIN32
+#  define FMT_RETRY_VAL(result, expression, error_result) \
+    do {                                                  \
+      (result) = (expression);                            \
+    } while ((result) == (error_result) && errno == EINTR)
+#else
+#  define FMT_RETRY_VAL(result, expression, error_result) result = (expression)
+#endif
+
+#define FMT_RETRY(result, expression) FMT_RETRY_VAL(result, expression, -1)
+
+FMT_BEGIN_NAMESPACE
+FMT_MODULE_EXPORT_BEGIN
+
+/**
+  \rst
+  A reference to a null-terminated string. It can be constructed from a C
+  string or ``std::string``.
+
+  You can use one of the following type aliases for common character types:
+
+  +---------------+-----------------------------+
+  | Type          | Definition                  |
+  +===============+=============================+
+  | cstring_view  | basic_cstring_view<char>    |
+  +---------------+-----------------------------+
+  | wcstring_view | basic_cstring_view<wchar_t> |
+  +---------------+-----------------------------+
+
+  This class is most useful as a parameter type to allow passing
+  different types of strings to a function, for example::
+
+    template <typename... Args>
+    std::string format(cstring_view format_str, const Args & ... args);
+
+    format("{}", 42);
+    format(std::string("{}"), 42);
+  \endrst
+ */
+template <typename Char> class basic_cstring_view {
+ private:
+  const Char* data_;
+
+ public:
+  /** Constructs a string reference object from a C string. */
+  basic_cstring_view(const Char* s) : data_(s) {}
+
+  /**
+    \rst
+    Constructs a string reference from an ``std::string`` object.
+    \endrst
+   */
+  basic_cstring_view(const std::basic_string<Char>& s) : data_(s.c_str()) {}
+
+  /** Returns the pointer to a C string. */
+  const Char* c_str() const { return data_; }
+};
+
+using cstring_view = basic_cstring_view<char>;
+using wcstring_view = basic_cstring_view<wchar_t>;
+
+template <typename Char> struct formatter<std::error_code, Char> {
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return ctx.begin();
+  }
+
+  template <typename FormatContext>
+  FMT_CONSTEXPR auto format(const std::error_code& ec, FormatContext& ctx) const
+      -> decltype(ctx.out()) {
+    auto out = ctx.out();
+    out = detail::write_bytes(out, ec.category().name(),
+                              basic_format_specs<Char>());
+    out = detail::write<Char>(out, Char(':'));
+    out = detail::write<Char>(out, ec.value());
+    return out;
+  }
+};
+
+#ifdef _WIN32
+FMT_API const std::error_category& system_category() FMT_NOEXCEPT;
+
+FMT_BEGIN_DETAIL_NAMESPACE
+// A converter from UTF-16 to UTF-8.
+// It is only provided for Windows since other systems support UTF-8 natively.
+class utf16_to_utf8 {
+ private:
+  memory_buffer buffer_;
+
+ public:
+  utf16_to_utf8() {}
+  FMT_API explicit utf16_to_utf8(basic_string_view<wchar_t> s);
+  operator string_view() const { return string_view(&buffer_[0], size()); }
+  size_t size() const { return buffer_.size() - 1; }
+  const char* c_str() const { return &buffer_[0]; }
+  std::string str() const { return std::string(&buffer_[0], size()); }
+
+  // Performs conversion returning a system error code instead of
+  // throwing exception on conversion error. This method may still throw
+  // in case of memory allocation error.
+  FMT_API int convert(basic_string_view<wchar_t> s);
+};
+
+FMT_API void format_windows_error(buffer<char>& out, int error_code,
+                                  const char* message) FMT_NOEXCEPT;
+FMT_END_DETAIL_NAMESPACE
+
+FMT_API std::system_error vwindows_error(int error_code, string_view format_str,
+                                         format_args args);
+
+/**
+ \rst
+ Constructs a :class:`std::system_error` object with the description
+ of the form
+
+ .. parsed-literal::
+   *<message>*: *<system-message>*
+
+ where *<message>* is the formatted message and *<system-message>* is the
+ system message corresponding to the error code.
+ *error_code* is a Windows error code as given by ``GetLastError``.
+ If *error_code* is not a valid error code such as -1, the system message
+ will look like "error -1".
+
+ **Example**::
+
+   // This throws a system_error with the description
+   //   cannot open file 'madeup': The system cannot find the file specified.
+   // or similar (system message may vary).
+   const char *filename = "madeup";
+   LPOFSTRUCT of = LPOFSTRUCT();
+   HFILE file = OpenFile(filename, &of, OF_READ);
+   if (file == HFILE_ERROR) {
+     throw fmt::windows_error(GetLastError(),
+                              "cannot open file '{}'", filename);
+   }
+ \endrst
+*/
+template <typename... Args>
+std::system_error windows_error(int error_code, string_view message,
+                                const Args&... args) {
+  return vwindows_error(error_code, message, fmt::make_format_args(args...));
+}
+
+// Reports a Windows error without throwing an exception.
+// Can be used to report errors from destructors.
+FMT_API void report_windows_error(int error_code,
+                                  const char* message) FMT_NOEXCEPT;
+#else
+inline const std::error_category& system_category() FMT_NOEXCEPT {
+  return std::system_category();
+}
+#endif  // _WIN32
+
+// std::system is not available on some platforms such as iOS (#2248).
+#ifdef __OSX__
+template <typename S, typename... Args, typename Char = char_t<S>>
+void say(const S& format_str, Args&&... args) {
+  std::system(format("say \"{}\"", format(format_str, args...)).c_str());
+}
+#endif
+
+// A buffered file.
+class buffered_file {
+ private:
+  FILE* file_;
+
+  friend class file;
+
+  explicit buffered_file(FILE* f) : file_(f) {}
+
+ public:
+  buffered_file(const buffered_file&) = delete;
+  void operator=(const buffered_file&) = delete;
+
+  // Constructs a buffered_file object which doesn't represent any file.
+  buffered_file() FMT_NOEXCEPT : file_(nullptr) {}
+
+  // Destroys the object closing the file it represents if any.
+  FMT_API ~buffered_file() FMT_NOEXCEPT;
+
+ public:
+  buffered_file(buffered_file&& other) FMT_NOEXCEPT : file_(other.file_) {
+    other.file_ = nullptr;
+  }
+
+  buffered_file& operator=(buffered_file&& other) {
+    close();
+    file_ = other.file_;
+    other.file_ = nullptr;
+    return *this;
+  }
+
+  // Opens a file.
+  FMT_API buffered_file(cstring_view filename, cstring_view mode);
+
+  // Closes the file.
+  FMT_API void close();
+
+  // Returns the pointer to a FILE object representing this file.
+  FILE* get() const FMT_NOEXCEPT { return file_; }
+
+  // We place parentheses around fileno to workaround a bug in some versions
+  // of MinGW that define fileno as a macro.
+  FMT_API int(fileno)() const;
+
+  void vprint(string_view format_str, format_args args) {
+    fmt::vprint(file_, format_str, args);
+  }
+
+  template <typename... Args>
+  inline void print(string_view format_str, const Args&... args) {
+    vprint(format_str, fmt::make_format_args(args...));
+  }
+};
+
+#if FMT_USE_FCNTL
+// A file. Closed file is represented by a file object with descriptor -1.
+// Methods that are not declared with FMT_NOEXCEPT may throw
+// fmt::system_error in case of failure. Note that some errors such as
+// closing the file multiple times will cause a crash on Windows rather
+// than an exception. You can get standard behavior by overriding the
+// invalid parameter handler with _set_invalid_parameter_handler.
+class file {
+ private:
+  int fd_;  // File descriptor.
+
+  // Constructs a file object with a given descriptor.
+  explicit file(int fd) : fd_(fd) {}
+
+ public:
+  // Possible values for the oflag argument to the constructor.
+  enum {
+    RDONLY = FMT_POSIX(O_RDONLY),  // Open for reading only.
+    WRONLY = FMT_POSIX(O_WRONLY),  // Open for writing only.
+    RDWR = FMT_POSIX(O_RDWR),      // Open for reading and writing.
+    CREATE = FMT_POSIX(O_CREAT),   // Create if the file doesn't exist.
+    APPEND = FMT_POSIX(O_APPEND),  // Open in append mode.
+    TRUNC = FMT_POSIX(O_TRUNC)     // Truncate the content of the file.
+  };
+
+  // Constructs a file object which doesn't represent any file.
+  file() FMT_NOEXCEPT : fd_(-1) {}
+
+  // Opens a file and constructs a file object representing this file.
+  FMT_API file(cstring_view path, int oflag);
+
+ public:
+  file(const file&) = delete;
+  void operator=(const file&) = delete;
+
+  file(file&& other) FMT_NOEXCEPT : fd_(other.fd_) { other.fd_ = -1; }
+
+  // Move assignment is not noexcept because close may throw.
+  file& operator=(file&& other) {
+    close();
+    fd_ = other.fd_;
+    other.fd_ = -1;
+    return *this;
+  }
+
+  // Destroys the object closing the file it represents if any.
+  FMT_API ~file() FMT_NOEXCEPT;
+
+  // Returns the file descriptor.
+  int descriptor() const FMT_NOEXCEPT { return fd_; }
+
+  // Closes the file.
+  FMT_API void close();
+
+  // Returns the file size. The size has signed type for consistency with
+  // stat::st_size.
+  FMT_API long long size() const;
+
+  // Attempts to read count bytes from the file into the specified buffer.
+  FMT_API size_t read(void* buffer, size_t count);
+
+  // Attempts to write count bytes from the specified buffer to the file.
+  FMT_API size_t write(const void* buffer, size_t count);
+
+  // Duplicates a file descriptor with the dup function and returns
+  // the duplicate as a file object.
+  FMT_API static file dup(int fd);
+
+  // Makes fd be the copy of this file descriptor, closing fd first if
+  // necessary.
+  FMT_API void dup2(int fd);
+
+  // Makes fd be the copy of this file descriptor, closing fd first if
+  // necessary.
+  FMT_API void dup2(int fd, std::error_code& ec) FMT_NOEXCEPT;
+
+  // Creates a pipe setting up read_end and write_end file objects for reading
+  // and writing respectively.
+  FMT_API static void pipe(file& read_end, file& write_end);
+
+  // Creates a buffered_file object associated with this file and detaches
+  // this file object from the file.
+  FMT_API buffered_file fdopen(const char* mode);
+};
+
+// Returns the memory page size.
+long getpagesize();
+
+FMT_BEGIN_DETAIL_NAMESPACE
+
+struct buffer_size {
+  buffer_size() = default;
+  size_t value = 0;
+  buffer_size operator=(size_t val) const {
+    auto bs = buffer_size();
+    bs.value = val;
+    return bs;
+  }
+};
+
+struct ostream_params {
+  int oflag = file::WRONLY | file::CREATE | file::TRUNC;
+  size_t buffer_size = BUFSIZ > 32768 ? BUFSIZ : 32768;
+
+  ostream_params() {}
+
+  template <typename... T>
+  ostream_params(T... params, int new_oflag) : ostream_params(params...) {
+    oflag = new_oflag;
+  }
+
+  template <typename... T>
+  ostream_params(T... params, detail::buffer_size bs)
+      : ostream_params(params...) {
+    this->buffer_size = bs.value;
+  }
+};
+
+FMT_END_DETAIL_NAMESPACE
+
+constexpr detail::buffer_size buffer_size;
+
+/** A fast output stream which is not thread-safe. */
+class FMT_API ostream final : private detail::buffer<char> {
+ private:
+  file file_;
+
+  void flush() {
+    if (size() == 0) return;
+    file_.write(data(), size());
+    clear();
+  }
+
+  void grow(size_t) override;
+
+  ostream(cstring_view path, const detail::ostream_params& params)
+      : file_(path, params.oflag) {
+    set(new char[params.buffer_size], params.buffer_size);
+  }
+
+ public:
+  ostream(ostream&& other)
+      : detail::buffer<char>(other.data(), other.size(), other.capacity()),
+        file_(std::move(other.file_)) {
+    other.clear();
+    other.set(nullptr, 0);
+  }
+  ~ostream() {
+    flush();
+    delete[] data();
+  }
+
+  template <typename... T>
+  friend ostream output_file(cstring_view path, T... params);
+
+  void close() {
+    flush();
+    file_.close();
+  }
+
+  /**
+    Formats ``args`` according to specifications in ``fmt`` and writes the
+    output to the file.
+   */
+  template <typename... T> void print(format_string<T...> fmt, T&&... args) {
+    vformat_to(detail::buffer_appender<char>(*this), fmt,
+               fmt::make_format_args(args...));
+  }
+};
+
+/**
+  \rst
+  Opens a file for writing. Supported parameters passed in *params*:
+
+  * ``<integer>``: Flags passed to `open
+    <https://pubs.opengroup.org/onlinepubs/007904875/functions/open.html>`_
+    (``file::WRONLY | file::CREATE`` by default)
+  * ``buffer_size=<integer>``: Output buffer size
+
+  **Example**::
+
+    auto out = fmt::output_file("guide.txt");
+    out.print("Don't {}", "Panic");
+  \endrst
+ */
+template <typename... T>
+inline ostream output_file(cstring_view path, T... params) {
+  return {path, detail::ostream_params(params...)};
+}
+#endif  // FMT_USE_FCNTL
+
+#ifdef FMT_LOCALE
+// A "C" numeric locale.
+class locale {
+ private:
+#  ifdef _WIN32
+  using locale_t = _locale_t;
+
+  static void freelocale(locale_t loc) { _free_locale(loc); }
+
+  static double strtod_l(const char* nptr, char** endptr, _locale_t loc) {
+    return _strtod_l(nptr, endptr, loc);
+  }
+#  endif
+
+  locale_t locale_;
+
+ public:
+  using type = locale_t;
+  locale(const locale&) = delete;
+  void operator=(const locale&) = delete;
+
+  locale() {
+#  ifndef _WIN32
+    locale_ = FMT_SYSTEM(newlocale(LC_NUMERIC_MASK, "C", nullptr));
+#  else
+    locale_ = _create_locale(LC_NUMERIC, "C");
+#  endif
+    if (!locale_) FMT_THROW(system_error(errno, "cannot create locale"));
+  }
+  ~locale() { freelocale(locale_); }
+
+  type get() const { return locale_; }
+
+  // Converts string to floating-point number and advances str past the end
+  // of the parsed input.
+  double strtod(const char*& str) const {
+    char* end = nullptr;
+    double result = strtod_l(str, &end, locale_);
+    str = end;
+    return result;
+  }
+};
+using Locale FMT_DEPRECATED_ALIAS = locale;
+#endif  // FMT_LOCALE
+FMT_MODULE_EXPORT_END
+FMT_END_NAMESPACE
+
+#endif  // FMT_OS_H_

Libs/spdlog/fmt/bundled/ostream.h

@@ -0,0 +1,181 @@
+// Formatting library for C++ - std::ostream support
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_OSTREAM_H_
+#define FMT_OSTREAM_H_
+
+#include <ostream>
+
+#include "format.h"
+
+FMT_BEGIN_NAMESPACE
+
+template <typename Char> class basic_printf_parse_context;
+template <typename OutputIt, typename Char> class basic_printf_context;
+
+namespace detail {
+
+template <class Char> class formatbuf : public std::basic_streambuf<Char> {
+ private:
+  using int_type = typename std::basic_streambuf<Char>::int_type;
+  using traits_type = typename std::basic_streambuf<Char>::traits_type;
+
+  buffer<Char>& buffer_;
+
+ public:
+  formatbuf(buffer<Char>& buf) : buffer_(buf) {}
+
+ protected:
+  // The put-area is actually always empty. This makes the implementation
+  // simpler and has the advantage that the streambuf and the buffer are always
+  // in sync and sputc never writes into uninitialized memory. The obvious
+  // disadvantage is that each call to sputc always results in a (virtual) call
+  // to overflow. There is no disadvantage here for sputn since this always
+  // results in a call to xsputn.
+
+  int_type overflow(int_type ch = traits_type::eof()) FMT_OVERRIDE {
+    if (!traits_type::eq_int_type(ch, traits_type::eof()))
+      buffer_.push_back(static_cast<Char>(ch));
+    return ch;
+  }
+
+  std::streamsize xsputn(const Char* s, std::streamsize count) FMT_OVERRIDE {
+    buffer_.append(s, s + count);
+    return count;
+  }
+};
+
+struct converter {
+  template <typename T, FMT_ENABLE_IF(is_integral<T>::value)> converter(T);
+};
+
+template <typename Char> struct test_stream : std::basic_ostream<Char> {
+ private:
+  void_t<> operator<<(converter);
+};
+
+// Hide insertion operators for built-in types.
+template <typename Char, typename Traits>
+void_t<> operator<<(std::basic_ostream<Char, Traits>&, Char);
+template <typename Char, typename Traits>
+void_t<> operator<<(std::basic_ostream<Char, Traits>&, char);
+template <typename Traits>
+void_t<> operator<<(std::basic_ostream<char, Traits>&, char);
+template <typename Traits>
+void_t<> operator<<(std::basic_ostream<char, Traits>&, signed char);
+template <typename Traits>
+void_t<> operator<<(std::basic_ostream<char, Traits>&, unsigned char);
+
+// Checks if T has a user-defined operator<< (e.g. not a member of
+// std::ostream).
+template <typename T, typename Char> class is_streamable {
+ private:
+  template <typename U>
+  static bool_constant<!std::is_same<decltype(std::declval<test_stream<Char>&>()
+                                              << std::declval<U>()),
+                                     void_t<>>::value>
+  test(int);
+
+  template <typename> static std::false_type test(...);
+
+  using result = decltype(test<T>(0));
+
+ public:
+  is_streamable() = default;
+
+  static const bool value = result::value;
+};
+
+// Write the content of buf to os.
+template <typename Char>
+void write_buffer(std::basic_ostream<Char>& os, buffer<Char>& buf) {
+  const Char* buf_data = buf.data();
+  using unsigned_streamsize = std::make_unsigned<std::streamsize>::type;
+  unsigned_streamsize size = buf.size();
+  unsigned_streamsize max_size = to_unsigned(max_value<std::streamsize>());
+  do {
+    unsigned_streamsize n = size <= max_size ? size : max_size;
+    os.write(buf_data, static_cast<std::streamsize>(n));
+    buf_data += n;
+    size -= n;
+  } while (size != 0);
+}
+
+template <typename Char, typename T>
+void format_value(buffer<Char>& buf, const T& value,
+                  locale_ref loc = locale_ref()) {
+  formatbuf<Char> format_buf(buf);
+  std::basic_ostream<Char> output(&format_buf);
+#if !defined(FMT_STATIC_THOUSANDS_SEPARATOR)
+  if (loc) output.imbue(loc.get<std::locale>());
+#endif
+  output << value;
+  output.exceptions(std::ios_base::failbit | std::ios_base::badbit);
+  buf.try_resize(buf.size());
+}
+
+// Formats an object of type T that has an overloaded ostream operator<<.
+template <typename T, typename Char>
+struct fallback_formatter<T, Char, enable_if_t<is_streamable<T, Char>::value>>
+    : private formatter<basic_string_view<Char>, Char> {
+  FMT_CONSTEXPR auto parse(basic_format_parse_context<Char>& ctx)
+      -> decltype(ctx.begin()) {
+    return formatter<basic_string_view<Char>, Char>::parse(ctx);
+  }
+  template <typename ParseCtx,
+            FMT_ENABLE_IF(std::is_same<
+                          ParseCtx, basic_printf_parse_context<Char>>::value)>
+  auto parse(ParseCtx& ctx) -> decltype(ctx.begin()) {
+    return ctx.begin();
+  }
+
+  template <typename OutputIt>
+  auto format(const T& value, basic_format_context<OutputIt, Char>& ctx)
+      -> OutputIt {
+    basic_memory_buffer<Char> buffer;
+    format_value(buffer, value, ctx.locale());
+    basic_string_view<Char> str(buffer.data(), buffer.size());
+    return formatter<basic_string_view<Char>, Char>::format(str, ctx);
+  }
+  template <typename OutputIt>
+  auto format(const T& value, basic_printf_context<OutputIt, Char>& ctx)
+      -> OutputIt {
+    basic_memory_buffer<Char> buffer;
+    format_value(buffer, value, ctx.locale());
+    return std::copy(buffer.begin(), buffer.end(), ctx.out());
+  }
+};
+}  // namespace detail
+
+FMT_MODULE_EXPORT
+template <typename Char>
+void vprint(std::basic_ostream<Char>& os, basic_string_view<Char> format_str,
+            basic_format_args<buffer_context<type_identity_t<Char>>> args) {
+  basic_memory_buffer<Char> buffer;
+  detail::vformat_to(buffer, format_str, args);
+  detail::write_buffer(os, buffer);
+}
+
+/**
+  \rst
+  Prints formatted data to the stream *os*.
+
+  **Example**::
+
+    fmt::print(cerr, "Don't {}!", "panic");
+  \endrst
+ */
+FMT_MODULE_EXPORT
+template <typename S, typename... Args,
+          typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
+void print(std::basic_ostream<Char>& os, const S& format_str, Args&&... args) {
+  vprint(os, to_string_view(format_str),
+         fmt::make_args_checked<Args...>(format_str, args...));
+}
+FMT_END_NAMESPACE
+
+#endif  // FMT_OSTREAM_H_

Libs/spdlog/fmt/bundled/printf.h

@@ -0,0 +1,652 @@
+// Formatting library for C++ - legacy printf implementation
+//
+// Copyright (c) 2012 - 2016, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_PRINTF_H_
+#define FMT_PRINTF_H_
+
+#include <algorithm>  // std::max
+#include <limits>     // std::numeric_limits
+#include <ostream>
+
+#include "format.h"
+
+FMT_BEGIN_NAMESPACE
+FMT_MODULE_EXPORT_BEGIN
+
+template <typename T> struct printf_formatter { printf_formatter() = delete; };
+
+template <typename Char>
+class basic_printf_parse_context : public basic_format_parse_context<Char> {
+  using basic_format_parse_context<Char>::basic_format_parse_context;
+};
+
+template <typename OutputIt, typename Char> class basic_printf_context {
+ private:
+  OutputIt out_;
+  basic_format_args<basic_printf_context> args_;
+
+ public:
+  using char_type = Char;
+  using format_arg = basic_format_arg<basic_printf_context>;
+  using parse_context_type = basic_printf_parse_context<Char>;
+  template <typename T> using formatter_type = printf_formatter<T>;
+
+  /**
+    \rst
+    Constructs a ``printf_context`` object. References to the arguments are
+    stored in the context object so make sure they have appropriate lifetimes.
+    \endrst
+   */
+  basic_printf_context(OutputIt out,
+                       basic_format_args<basic_printf_context> args)
+      : out_(out), args_(args) {}
+
+  OutputIt out() { return out_; }
+  void advance_to(OutputIt it) { out_ = it; }
+
+  detail::locale_ref locale() { return {}; }
+
+  format_arg arg(int id) const { return args_.get(id); }
+
+  FMT_CONSTEXPR void on_error(const char* message) {
+    detail::error_handler().on_error(message);
+  }
+};
+
+FMT_BEGIN_DETAIL_NAMESPACE
+
+// Checks if a value fits in int - used to avoid warnings about comparing
+// signed and unsigned integers.
+template <bool IsSigned> struct int_checker {
+  template <typename T> static bool fits_in_int(T value) {
+    unsigned max = max_value<int>();
+    return value <= max;
+  }
+  static bool fits_in_int(bool) { return true; }
+};
+
+template <> struct int_checker<true> {
+  template <typename T> static bool fits_in_int(T value) {
+    return value >= (std::numeric_limits<int>::min)() &&
+           value <= max_value<int>();
+  }
+  static bool fits_in_int(int) { return true; }
+};
+
+class printf_precision_handler {
+ public:
+  template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
+  int operator()(T value) {
+    if (!int_checker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
+      FMT_THROW(format_error("number is too big"));
+    return (std::max)(static_cast<int>(value), 0);
+  }
+
+  template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
+  int operator()(T) {
+    FMT_THROW(format_error("precision is not integer"));
+    return 0;
+  }
+};
+
+// An argument visitor that returns true iff arg is a zero integer.
+class is_zero_int {
+ public:
+  template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
+  bool operator()(T value) {
+    return value == 0;
+  }
+
+  template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
+  bool operator()(T) {
+    return false;
+  }
+};
+
+template <typename T> struct make_unsigned_or_bool : std::make_unsigned<T> {};
+
+template <> struct make_unsigned_or_bool<bool> { using type = bool; };
+
+template <typename T, typename Context> class arg_converter {
+ private:
+  using char_type = typename Context::char_type;
+
+  basic_format_arg<Context>& arg_;
+  char_type type_;
+
+ public:
+  arg_converter(basic_format_arg<Context>& arg, char_type type)
+      : arg_(arg), type_(type) {}
+
+  void operator()(bool value) {
+    if (type_ != 's') operator()<bool>(value);
+  }
+
+  template <typename U, FMT_ENABLE_IF(std::is_integral<U>::value)>
+  void operator()(U value) {
+    bool is_signed = type_ == 'd' || type_ == 'i';
+    using target_type = conditional_t<std::is_same<T, void>::value, U, T>;
+    if (const_check(sizeof(target_type) <= sizeof(int))) {
+      // Extra casts are used to silence warnings.
+      if (is_signed) {
+        arg_ = detail::make_arg<Context>(
+            static_cast<int>(static_cast<target_type>(value)));
+      } else {
+        using unsigned_type = typename make_unsigned_or_bool<target_type>::type;
+        arg_ = detail::make_arg<Context>(
+            static_cast<unsigned>(static_cast<unsigned_type>(value)));
+      }
+    } else {
+      if (is_signed) {
+        // glibc's printf doesn't sign extend arguments of smaller types:
+        //   std::printf("%lld", -42);  // prints "4294967254"
+        // but we don't have to do the same because it's a UB.
+        arg_ = detail::make_arg<Context>(static_cast<long long>(value));
+      } else {
+        arg_ = detail::make_arg<Context>(
+            static_cast<typename make_unsigned_or_bool<U>::type>(value));
+      }
+    }
+  }
+
+  template <typename U, FMT_ENABLE_IF(!std::is_integral<U>::value)>
+  void operator()(U) {}  // No conversion needed for non-integral types.
+};
+
+// Converts an integer argument to T for printf, if T is an integral type.
+// If T is void, the argument is converted to corresponding signed or unsigned
+// type depending on the type specifier: 'd' and 'i' - signed, other -
+// unsigned).
+template <typename T, typename Context, typename Char>
+void convert_arg(basic_format_arg<Context>& arg, Char type) {
+  visit_format_arg(arg_converter<T, Context>(arg, type), arg);
+}
+
+// Converts an integer argument to char for printf.
+template <typename Context> class char_converter {
+ private:
+  basic_format_arg<Context>& arg_;
+
+ public:
+  explicit char_converter(basic_format_arg<Context>& arg) : arg_(arg) {}
+
+  template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
+  void operator()(T value) {
+    arg_ = detail::make_arg<Context>(
+        static_cast<typename Context::char_type>(value));
+  }
+
+  template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
+  void operator()(T) {}  // No conversion needed for non-integral types.
+};
+
+// An argument visitor that return a pointer to a C string if argument is a
+// string or null otherwise.
+template <typename Char> struct get_cstring {
+  template <typename T> const Char* operator()(T) { return nullptr; }
+  const Char* operator()(const Char* s) { return s; }
+};
+
+// Checks if an argument is a valid printf width specifier and sets
+// left alignment if it is negative.
+template <typename Char> class printf_width_handler {
+ private:
+  using format_specs = basic_format_specs<Char>;
+
+  format_specs& specs_;
+
+ public:
+  explicit printf_width_handler(format_specs& specs) : specs_(specs) {}
+
+  template <typename T, FMT_ENABLE_IF(std::is_integral<T>::value)>
+  unsigned operator()(T value) {
+    auto width = static_cast<uint32_or_64_or_128_t<T>>(value);
+    if (detail::is_negative(value)) {
+      specs_.align = align::left;
+      width = 0 - width;
+    }
+    unsigned int_max = max_value<int>();
+    if (width > int_max) FMT_THROW(format_error("number is too big"));
+    return static_cast<unsigned>(width);
+  }
+
+  template <typename T, FMT_ENABLE_IF(!std::is_integral<T>::value)>
+  unsigned operator()(T) {
+    FMT_THROW(format_error("width is not integer"));
+    return 0;
+  }
+};
+
+// The ``printf`` argument formatter.
+template <typename OutputIt, typename Char>
+class printf_arg_formatter : public arg_formatter<Char> {
+ private:
+  using base = arg_formatter<Char>;
+  using context_type = basic_printf_context<OutputIt, Char>;
+  using format_specs = basic_format_specs<Char>;
+
+  context_type& context_;
+
+  OutputIt write_null_pointer(bool is_string = false) {
+    auto s = this->specs;
+    s.type = 0;
+    return write_bytes(this->out, is_string ? "(null)" : "(nil)", s);
+  }
+
+ public:
+  printf_arg_formatter(OutputIt iter, format_specs& s, context_type& ctx)
+      : base{iter, s, locale_ref()}, context_(ctx) {}
+
+  OutputIt operator()(monostate value) { return base::operator()(value); }
+
+  template <typename T, FMT_ENABLE_IF(detail::is_integral<T>::value)>
+  OutputIt operator()(T value) {
+    // MSVC2013 fails to compile separate overloads for bool and Char so use
+    // std::is_same instead.
+    if (std::is_same<T, Char>::value) {
+      format_specs fmt_specs = this->specs;
+      if (fmt_specs.type && fmt_specs.type != 'c')
+        return (*this)(static_cast<int>(value));
+      fmt_specs.sign = sign::none;
+      fmt_specs.alt = false;
+      fmt_specs.fill[0] = ' ';  // Ignore '0' flag for char types.
+      // align::numeric needs to be overwritten here since the '0' flag is
+      // ignored for non-numeric types
+      if (fmt_specs.align == align::none || fmt_specs.align == align::numeric)
+        fmt_specs.align = align::right;
+      return write<Char>(this->out, static_cast<Char>(value), fmt_specs);
+    }
+    return base::operator()(value);
+  }
+
+  template <typename T, FMT_ENABLE_IF(std::is_floating_point<T>::value)>
+  OutputIt operator()(T value) {
+    return base::operator()(value);
+  }
+
+  /** Formats a null-terminated C string. */
+  OutputIt operator()(const char* value) {
+    if (value) return base::operator()(value);
+    return write_null_pointer(this->specs.type != 'p');
+  }
+
+  /** Formats a null-terminated wide C string. */
+  OutputIt operator()(const wchar_t* value) {
+    if (value) return base::operator()(value);
+    return write_null_pointer(this->specs.type != 'p');
+  }
+
+  OutputIt operator()(basic_string_view<Char> value) {
+    return base::operator()(value);
+  }
+
+  /** Formats a pointer. */
+  OutputIt operator()(const void* value) {
+    return value ? base::operator()(value) : write_null_pointer();
+  }
+
+  /** Formats an argument of a custom (user-defined) type. */
+  OutputIt operator()(typename basic_format_arg<context_type>::handle handle) {
+    auto parse_ctx =
+        basic_printf_parse_context<Char>(basic_string_view<Char>());
+    handle.format(parse_ctx, context_);
+    return this->out;
+  }
+};
+
+template <typename Char>
+void parse_flags(basic_format_specs<Char>& specs, const Char*& it,
+                 const Char* end) {
+  for (; it != end; ++it) {
+    switch (*it) {
+    case '-':
+      specs.align = align::left;
+      break;
+    case '+':
+      specs.sign = sign::plus;
+      break;
+    case '0':
+      specs.fill[0] = '0';
+      break;
+    case ' ':
+      if (specs.sign != sign::plus) {
+        specs.sign = sign::space;
+      }
+      break;
+    case '#':
+      specs.alt = true;
+      break;
+    default:
+      return;
+    }
+  }
+}
+
+template <typename Char, typename GetArg>
+int parse_header(const Char*& it, const Char* end,
+                 basic_format_specs<Char>& specs, GetArg get_arg) {
+  int arg_index = -1;
+  Char c = *it;
+  if (c >= '0' && c <= '9') {
+    // Parse an argument index (if followed by '$') or a width possibly
+    // preceded with '0' flag(s).
+    int value = parse_nonnegative_int(it, end, -1);
+    if (it != end && *it == '$') {  // value is an argument index
+      ++it;
+      arg_index = value != -1 ? value : max_value<int>();
+    } else {
+      if (c == '0') specs.fill[0] = '0';
+      if (value != 0) {
+        // Nonzero value means that we parsed width and don't need to
+        // parse it or flags again, so return now.
+        if (value == -1) FMT_THROW(format_error("number is too big"));
+        specs.width = value;
+        return arg_index;
+      }
+    }
+  }
+  parse_flags(specs, it, end);
+  // Parse width.
+  if (it != end) {
+    if (*it >= '0' && *it <= '9') {
+      specs.width = parse_nonnegative_int(it, end, -1);
+      if (specs.width == -1) FMT_THROW(format_error("number is too big"));
+    } else if (*it == '*') {
+      ++it;
+      specs.width = static_cast<int>(visit_format_arg(
+          detail::printf_width_handler<Char>(specs), get_arg(-1)));
+    }
+  }
+  return arg_index;
+}
+
+template <typename Char, typename Context>
+void vprintf(buffer<Char>& buf, basic_string_view<Char> format,
+             basic_format_args<Context> args) {
+  using OutputIt = buffer_appender<Char>;
+  auto out = OutputIt(buf);
+  auto context = basic_printf_context<OutputIt, Char>(out, args);
+  auto parse_ctx = basic_printf_parse_context<Char>(format);
+
+  // Returns the argument with specified index or, if arg_index is -1, the next
+  // argument.
+  auto get_arg = [&](int arg_index) {
+    if (arg_index < 0)
+      arg_index = parse_ctx.next_arg_id();
+    else
+      parse_ctx.check_arg_id(--arg_index);
+    return detail::get_arg(context, arg_index);
+  };
+
+  const Char* start = parse_ctx.begin();
+  const Char* end = parse_ctx.end();
+  auto it = start;
+  while (it != end) {
+    if (!detail::find<false, Char>(it, end, '%', it)) {
+      it = end;  // detail::find leaves it == nullptr if it doesn't find '%'
+      break;
+    }
+    Char c = *it++;
+    if (it != end && *it == c) {
+      out = detail::write(
+          out, basic_string_view<Char>(start, detail::to_unsigned(it - start)));
+      start = ++it;
+      continue;
+    }
+    out = detail::write(out, basic_string_view<Char>(
+                                 start, detail::to_unsigned(it - 1 - start)));
+
+    basic_format_specs<Char> specs;
+    specs.align = align::right;
+
+    // Parse argument index, flags and width.
+    int arg_index = parse_header(it, end, specs, get_arg);
+    if (arg_index == 0) parse_ctx.on_error("argument not found");
+
+    // Parse precision.
+    if (it != end && *it == '.') {
+      ++it;
+      c = it != end ? *it : 0;
+      if ('0' <= c && c <= '9') {
+        specs.precision = parse_nonnegative_int(it, end, 0);
+      } else if (c == '*') {
+        ++it;
+        specs.precision = static_cast<int>(
+            visit_format_arg(detail::printf_precision_handler(), get_arg(-1)));
+      } else {
+        specs.precision = 0;
+      }
+    }
+
+    auto arg = get_arg(arg_index);
+    // For d, i, o, u, x, and X conversion specifiers, if a precision is
+    // specified, the '0' flag is ignored
+    if (specs.precision >= 0 && arg.is_integral())
+      specs.fill[0] =
+          ' ';  // Ignore '0' flag for non-numeric types or if '-' present.
+    if (specs.precision >= 0 && arg.type() == detail::type::cstring_type) {
+      auto str = visit_format_arg(detail::get_cstring<Char>(), arg);
+      auto str_end = str + specs.precision;
+      auto nul = std::find(str, str_end, Char());
+      arg = detail::make_arg<basic_printf_context<OutputIt, Char>>(
+          basic_string_view<Char>(
+              str, detail::to_unsigned(nul != str_end ? nul - str
+                                                      : specs.precision)));
+    }
+    if (specs.alt && visit_format_arg(detail::is_zero_int(), arg))
+      specs.alt = false;
+    if (specs.fill[0] == '0') {
+      if (arg.is_arithmetic() && specs.align != align::left)
+        specs.align = align::numeric;
+      else
+        specs.fill[0] = ' ';  // Ignore '0' flag for non-numeric types or if '-'
+                              // flag is also present.
+    }
+
+    // Parse length and convert the argument to the required type.
+    c = it != end ? *it++ : 0;
+    Char t = it != end ? *it : 0;
+    using detail::convert_arg;
+    switch (c) {
+    case 'h':
+      if (t == 'h') {
+        ++it;
+        t = it != end ? *it : 0;
+        convert_arg<signed char>(arg, t);
+      } else {
+        convert_arg<short>(arg, t);
+      }
+      break;
+    case 'l':
+      if (t == 'l') {
+        ++it;
+        t = it != end ? *it : 0;
+        convert_arg<long long>(arg, t);
+      } else {
+        convert_arg<long>(arg, t);
+      }
+      break;
+    case 'j':
+      convert_arg<intmax_t>(arg, t);
+      break;
+    case 'z':
+      convert_arg<size_t>(arg, t);
+      break;
+    case 't':
+      convert_arg<std::ptrdiff_t>(arg, t);
+      break;
+    case 'L':
+      // printf produces garbage when 'L' is omitted for long double, no
+      // need to do the same.
+      break;
+    default:
+      --it;
+      convert_arg<void>(arg, c);
+    }
+
+    // Parse type.
+    if (it == end) FMT_THROW(format_error("invalid format string"));
+    specs.type = static_cast<char>(*it++);
+    if (arg.is_integral()) {
+      // Normalize type.
+      switch (specs.type) {
+      case 'i':
+      case 'u':
+        specs.type = 'd';
+        break;
+      case 'c':
+        visit_format_arg(
+            detail::char_converter<basic_printf_context<OutputIt, Char>>(arg),
+            arg);
+        break;
+      }
+    }
+
+    start = it;
+
+    // Format argument.
+    out = visit_format_arg(
+        detail::printf_arg_formatter<OutputIt, Char>(out, specs, context), arg);
+  }
+  detail::write(out, basic_string_view<Char>(start, to_unsigned(it - start)));
+}
+FMT_END_DETAIL_NAMESPACE
+
+template <typename Char>
+using basic_printf_context_t =
+    basic_printf_context<detail::buffer_appender<Char>, Char>;
+
+using printf_context = basic_printf_context_t<char>;
+using wprintf_context = basic_printf_context_t<wchar_t>;
+
+using printf_args = basic_format_args<printf_context>;
+using wprintf_args = basic_format_args<wprintf_context>;
+
+/**
+  \rst
+  Constructs an `~fmt::format_arg_store` object that contains references to
+  arguments and can be implicitly converted to `~fmt::printf_args`.
+  \endrst
+ */
+template <typename... T>
+inline auto make_printf_args(const T&... args)
+    -> format_arg_store<printf_context, T...> {
+  return {args...};
+}
+
+/**
+  \rst
+  Constructs an `~fmt::format_arg_store` object that contains references to
+  arguments and can be implicitly converted to `~fmt::wprintf_args`.
+  \endrst
+ */
+template <typename... T>
+inline auto make_wprintf_args(const T&... args)
+    -> format_arg_store<wprintf_context, T...> {
+  return {args...};
+}
+
+template <typename S, typename Char = char_t<S>>
+inline auto vsprintf(
+    const S& fmt,
+    basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args)
+    -> std::basic_string<Char> {
+  basic_memory_buffer<Char> buffer;
+  vprintf(buffer, to_string_view(fmt), args);
+  return to_string(buffer);
+}
+
+/**
+  \rst
+  Formats arguments and returns the result as a string.
+
+  **Example**::
+
+    std::string message = fmt::sprintf("The answer is %d", 42);
+  \endrst
+*/
+template <typename S, typename... T,
+          typename Char = enable_if_t<detail::is_string<S>::value, char_t<S>>>
+inline auto sprintf(const S& fmt, const T&... args) -> std::basic_string<Char> {
+  using context = basic_printf_context_t<Char>;
+  return vsprintf(to_string_view(fmt), fmt::make_format_args<context>(args...));
+}
+
+template <typename S, typename Char = char_t<S>>
+inline auto vfprintf(
+    std::FILE* f, const S& fmt,
+    basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args)
+    -> int {
+  basic_memory_buffer<Char> buffer;
+  vprintf(buffer, to_string_view(fmt), args);
+  size_t size = buffer.size();
+  return std::fwrite(buffer.data(), sizeof(Char), size, f) < size
+             ? -1
+             : static_cast<int>(size);
+}
+
+/**
+  \rst
+  Prints formatted data to the file *f*.
+
+  **Example**::
+
+    fmt::fprintf(stderr, "Don't %s!", "panic");
+  \endrst
+ */
+template <typename S, typename... T, typename Char = char_t<S>>
+inline auto fprintf(std::FILE* f, const S& fmt, const T&... args) -> int {
+  using context = basic_printf_context_t<Char>;
+  return vfprintf(f, to_string_view(fmt),
+                  fmt::make_format_args<context>(args...));
+}
+
+template <typename S, typename Char = char_t<S>>
+inline auto vprintf(
+    const S& fmt,
+    basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args)
+    -> int {
+  return vfprintf(stdout, to_string_view(fmt), args);
+}
+
+/**
+  \rst
+  Prints formatted data to ``stdout``.
+
+  **Example**::
+
+    fmt::printf("Elapsed time: %.2f seconds", 1.23);
+  \endrst
+ */
+template <typename S, typename... T, FMT_ENABLE_IF(detail::is_string<S>::value)>
+inline auto printf(const S& fmt, const T&... args) -> int {
+  return vprintf(
+      to_string_view(fmt),
+      fmt::make_format_args<basic_printf_context_t<char_t<S>>>(args...));
+}
+
+template <typename S, typename Char = char_t<S>>
+FMT_DEPRECATED auto vfprintf(
+    std::basic_ostream<Char>& os, const S& fmt,
+    basic_format_args<basic_printf_context_t<type_identity_t<Char>>> args)
+    -> int {
+  basic_memory_buffer<Char> buffer;
+  vprintf(buffer, to_string_view(fmt), args);
+  os.write(buffer.data(), static_cast<std::streamsize>(buffer.size()));
+  return static_cast<int>(buffer.size());
+}
+template <typename S, typename... T, typename Char = char_t<S>>
+FMT_DEPRECATED auto fprintf(std::basic_ostream<Char>& os, const S& fmt,
+                            const T&... args) -> int {
+  return vfprintf(os, to_string_view(fmt),
+                  fmt::make_format_args<basic_printf_context_t<Char>>(args...));
+}
+
+FMT_MODULE_EXPORT_END
+FMT_END_NAMESPACE
+
+#endif  // FMT_PRINTF_H_

Libs/spdlog/fmt/bundled/ranges.h

@@ -0,0 +1,468 @@
+// Formatting library for C++ - experimental range support
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+//
+// Copyright (c) 2018 - present, Remotion (Igor Schulz)
+// All Rights Reserved
+// {fmt} support for ranges, containers and types tuple interface.
+
+#ifndef FMT_RANGES_H_
+#define FMT_RANGES_H_
+
+#include <initializer_list>
+#include <type_traits>
+
+#include "format.h"
+
+FMT_BEGIN_NAMESPACE
+
+template <typename Char, typename Enable = void> struct formatting_range {
+#ifdef FMT_DEPRECATED_BRACED_RANGES
+  Char prefix = '{';
+  Char postfix = '}';
+#else
+  Char prefix = '[';
+  Char postfix = ']';
+#endif
+
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return ctx.begin();
+  }
+};
+
+template <typename Char, typename Enable = void> struct formatting_tuple {
+  Char prefix = '(';
+  Char postfix = ')';
+
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return ctx.begin();
+  }
+};
+
+namespace detail {
+
+template <typename RangeT, typename OutputIterator>
+OutputIterator copy(const RangeT& range, OutputIterator out) {
+  for (auto it = range.begin(), end = range.end(); it != end; ++it)
+    *out++ = *it;
+  return out;
+}
+
+template <typename OutputIterator>
+OutputIterator copy(const char* str, OutputIterator out) {
+  while (*str) *out++ = *str++;
+  return out;
+}
+
+template <typename OutputIterator>
+OutputIterator copy(char ch, OutputIterator out) {
+  *out++ = ch;
+  return out;
+}
+
+template <typename OutputIterator>
+OutputIterator copy(wchar_t ch, OutputIterator out) {
+  *out++ = ch;
+  return out;
+}
+
+/// Return true value if T has std::string interface, like std::string_view.
+template <typename T> class is_std_string_like {
+  template <typename U>
+  static auto check(U* p)
+      -> decltype((void)p->find('a'), p->length(), (void)p->data(), int());
+  template <typename> static void check(...);
+
+ public:
+  static FMT_CONSTEXPR_DECL const bool value =
+      is_string<T>::value || !std::is_void<decltype(check<T>(nullptr))>::value;
+};
+
+template <typename Char>
+struct is_std_string_like<fmt::basic_string_view<Char>> : std::true_type {};
+
+template <typename... Ts> struct conditional_helper {};
+
+template <typename T, typename _ = void> struct is_range_ : std::false_type {};
+
+#if !FMT_MSC_VER || FMT_MSC_VER > 1800
+
+#  define FMT_DECLTYPE_RETURN(val)  \
+    ->decltype(val) { return val; } \
+    static_assert(                  \
+        true, "")  // This makes it so that a semicolon is required after the
+                   // macro, which helps clang-format handle the formatting.
+
+// C array overload
+template <typename T, std::size_t N>
+auto range_begin(const T (&arr)[N]) -> const T* {
+  return arr;
+}
+template <typename T, std::size_t N>
+auto range_end(const T (&arr)[N]) -> const T* {
+  return arr + N;
+}
+
+template <typename T, typename Enable = void>
+struct has_member_fn_begin_end_t : std::false_type {};
+
+template <typename T>
+struct has_member_fn_begin_end_t<T, void_t<decltype(std::declval<T>().begin()),
+                                           decltype(std::declval<T>().end())>>
+    : std::true_type {};
+
+// Member function overload
+template <typename T>
+auto range_begin(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).begin());
+template <typename T>
+auto range_end(T&& rng) FMT_DECLTYPE_RETURN(static_cast<T&&>(rng).end());
+
+// ADL overload. Only participates in overload resolution if member functions
+// are not found.
+template <typename T>
+auto range_begin(T&& rng)
+    -> enable_if_t<!has_member_fn_begin_end_t<T&&>::value,
+                   decltype(begin(static_cast<T&&>(rng)))> {
+  return begin(static_cast<T&&>(rng));
+}
+template <typename T>
+auto range_end(T&& rng) -> enable_if_t<!has_member_fn_begin_end_t<T&&>::value,
+                                       decltype(end(static_cast<T&&>(rng)))> {
+  return end(static_cast<T&&>(rng));
+}
+
+template <typename T, typename Enable = void>
+struct has_const_begin_end : std::false_type {};
+template <typename T, typename Enable = void>
+struct has_mutable_begin_end : std::false_type {};
+
+template <typename T>
+struct has_const_begin_end<
+    T, void_t<decltype(detail::range_begin(
+                  std::declval<const remove_cvref_t<T>&>())),
+              decltype(detail::range_begin(
+                  std::declval<const remove_cvref_t<T>&>()))>>
+    : std::true_type {};
+
+template <typename T>
+struct has_mutable_begin_end<
+    T, void_t<decltype(detail::range_begin(std::declval<T>())),
+              decltype(detail::range_begin(std::declval<T>())),
+              enable_if_t<std::is_copy_constructible<T>::value>>>
+    : std::true_type {};
+
+template <typename T>
+struct is_range_<T, void>
+    : std::integral_constant<bool, (has_const_begin_end<T>::value ||
+                                    has_mutable_begin_end<T>::value)> {};
+
+template <typename T, typename Enable = void> struct range_to_view;
+template <typename T>
+struct range_to_view<T, enable_if_t<has_const_begin_end<T>::value>> {
+  struct view_t {
+    const T* m_range_ptr;
+
+    auto begin() const FMT_DECLTYPE_RETURN(detail::range_begin(*m_range_ptr));
+    auto end() const FMT_DECLTYPE_RETURN(detail::range_end(*m_range_ptr));
+  };
+  static auto view(const T& range) -> view_t { return {&range}; }
+};
+
+template <typename T>
+struct range_to_view<T, enable_if_t<!has_const_begin_end<T>::value &&
+                                    has_mutable_begin_end<T>::value>> {
+  struct view_t {
+    T m_range_copy;
+
+    auto begin() FMT_DECLTYPE_RETURN(detail::range_begin(m_range_copy));
+    auto end() FMT_DECLTYPE_RETURN(detail::range_end(m_range_copy));
+  };
+  static auto view(const T& range) -> view_t { return {range}; }
+};
+#  undef FMT_DECLTYPE_RETURN
+#endif
+
+/// tuple_size and tuple_element check.
+template <typename T> class is_tuple_like_ {
+  template <typename U>
+  static auto check(U* p) -> decltype(std::tuple_size<U>::value, int());
+  template <typename> static void check(...);
+
+ public:
+  static FMT_CONSTEXPR_DECL const bool value =
+      !std::is_void<decltype(check<T>(nullptr))>::value;
+};
+
+// Check for integer_sequence
+#if defined(__cpp_lib_integer_sequence) || FMT_MSC_VER >= 1900
+template <typename T, T... N>
+using integer_sequence = std::integer_sequence<T, N...>;
+template <size_t... N> using index_sequence = std::index_sequence<N...>;
+template <size_t N> using make_index_sequence = std::make_index_sequence<N>;
+#else
+template <typename T, T... N> struct integer_sequence {
+  using value_type = T;
+
+  static FMT_CONSTEXPR size_t size() { return sizeof...(N); }
+};
+
+template <size_t... N> using index_sequence = integer_sequence<size_t, N...>;
+
+template <typename T, size_t N, T... Ns>
+struct make_integer_sequence : make_integer_sequence<T, N - 1, N - 1, Ns...> {};
+template <typename T, T... Ns>
+struct make_integer_sequence<T, 0, Ns...> : integer_sequence<T, Ns...> {};
+
+template <size_t N>
+using make_index_sequence = make_integer_sequence<size_t, N>;
+#endif
+
+template <class Tuple, class F, size_t... Is>
+void for_each(index_sequence<Is...>, Tuple&& tup, F&& f) FMT_NOEXCEPT {
+  using std::get;
+  // using free function get<I>(T) now.
+  const int _[] = {0, ((void)f(get<Is>(tup)), 0)...};
+  (void)_;  // blocks warnings
+}
+
+template <class T>
+FMT_CONSTEXPR make_index_sequence<std::tuple_size<T>::value> get_indexes(
+    T const&) {
+  return {};
+}
+
+template <class Tuple, class F> void for_each(Tuple&& tup, F&& f) {
+  const auto indexes = get_indexes(tup);
+  for_each(indexes, std::forward<Tuple>(tup), std::forward<F>(f));
+}
+
+template <typename Range>
+using value_type =
+    remove_cvref_t<decltype(*detail::range_begin(std::declval<Range>()))>;
+
+template <typename OutputIt> OutputIt write_delimiter(OutputIt out) {
+  *out++ = ',';
+  *out++ = ' ';
+  return out;
+}
+
+template <
+    typename Char, typename OutputIt, typename Arg,
+    FMT_ENABLE_IF(is_std_string_like<typename std::decay<Arg>::type>::value)>
+OutputIt write_range_entry(OutputIt out, const Arg& v) {
+  *out++ = '"';
+  out = write<Char>(out, v);
+  *out++ = '"';
+  return out;
+}
+
+template <typename Char, typename OutputIt, typename Arg,
+          FMT_ENABLE_IF(std::is_same<Arg, Char>::value)>
+OutputIt write_range_entry(OutputIt out, const Arg v) {
+  *out++ = '\'';
+  *out++ = v;
+  *out++ = '\'';
+  return out;
+}
+
+template <
+    typename Char, typename OutputIt, typename Arg,
+    FMT_ENABLE_IF(!is_std_string_like<typename std::decay<Arg>::type>::value &&
+                  !std::is_same<Arg, Char>::value)>
+OutputIt write_range_entry(OutputIt out, const Arg& v) {
+  return write<Char>(out, v);
+}
+
+}  // namespace detail
+
+template <typename T> struct is_tuple_like {
+  static FMT_CONSTEXPR_DECL const bool value =
+      detail::is_tuple_like_<T>::value && !detail::is_range_<T>::value;
+};
+
+template <typename TupleT, typename Char>
+struct formatter<TupleT, Char, enable_if_t<fmt::is_tuple_like<TupleT>::value>> {
+ private:
+  // C++11 generic lambda for format()
+  template <typename FormatContext> struct format_each {
+    template <typename T> void operator()(const T& v) {
+      if (i > 0) out = detail::write_delimiter(out);
+      out = detail::write_range_entry<Char>(out, v);
+      ++i;
+    }
+    formatting_tuple<Char>& formatting;
+    size_t& i;
+    typename std::add_lvalue_reference<
+        decltype(std::declval<FormatContext>().out())>::type out;
+  };
+
+ public:
+  formatting_tuple<Char> formatting;
+
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return formatting.parse(ctx);
+  }
+
+  template <typename FormatContext = format_context>
+  auto format(const TupleT& values, FormatContext& ctx) -> decltype(ctx.out()) {
+    auto out = ctx.out();
+    size_t i = 0;
+
+    detail::copy(formatting.prefix, out);
+    detail::for_each(values, format_each<FormatContext>{formatting, i, out});
+    detail::copy(formatting.postfix, out);
+
+    return ctx.out();
+  }
+};
+
+template <typename T, typename Char> struct is_range {
+  static FMT_CONSTEXPR_DECL const bool value =
+      detail::is_range_<T>::value && !detail::is_std_string_like<T>::value &&
+      !std::is_convertible<T, std::basic_string<Char>>::value &&
+      !std::is_constructible<detail::std_string_view<Char>, T>::value;
+};
+
+template <typename T, typename Char>
+struct formatter<
+    T, Char,
+    enable_if_t<
+        fmt::is_range<T, Char>::value
+// Workaround a bug in MSVC 2017 and earlier.
+#if !FMT_MSC_VER || FMT_MSC_VER >= 1927
+        && (has_formatter<detail::value_type<T>, format_context>::value ||
+            detail::has_fallback_formatter<detail::value_type<T>, Char>::value)
+#endif
+        >> {
+  formatting_range<Char> formatting;
+
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return formatting.parse(ctx);
+  }
+
+  template <typename FormatContext>
+  typename FormatContext::iterator format(const T& values, FormatContext& ctx) {
+    auto out = detail::copy(formatting.prefix, ctx.out());
+    size_t i = 0;
+    auto view = detail::range_to_view<T>::view(values);
+    auto it = view.begin();
+    auto end = view.end();
+    for (; it != end; ++it) {
+      if (i > 0) out = detail::write_delimiter(out);
+      out = detail::write_range_entry<Char>(out, *it);
+      ++i;
+    }
+    return detail::copy(formatting.postfix, out);
+  }
+};
+
+template <typename Char, typename... T> struct tuple_join_view : detail::view {
+  const std::tuple<T...>& tuple;
+  basic_string_view<Char> sep;
+
+  tuple_join_view(const std::tuple<T...>& t, basic_string_view<Char> s)
+      : tuple(t), sep{s} {}
+};
+
+template <typename Char, typename... T>
+using tuple_arg_join = tuple_join_view<Char, T...>;
+
+template <typename Char, typename... T>
+struct formatter<tuple_join_view<Char, T...>, Char> {
+  template <typename ParseContext>
+  FMT_CONSTEXPR auto parse(ParseContext& ctx) -> decltype(ctx.begin()) {
+    return ctx.begin();
+  }
+
+  template <typename FormatContext>
+  auto format(const tuple_join_view<Char, T...>& value, FormatContext& ctx) ->
+      typename FormatContext::iterator {
+    return format(value, ctx, detail::make_index_sequence<sizeof...(T)>{});
+  }
+
+ private:
+  template <typename FormatContext, size_t... N>
+  auto format(const tuple_join_view<Char, T...>& value, FormatContext& ctx,
+              detail::index_sequence<N...>) ->
+      typename FormatContext::iterator {
+    using std::get;
+    return format_args(value, ctx, get<N>(value.tuple)...);
+  }
+
+  template <typename FormatContext>
+  auto format_args(const tuple_join_view<Char, T...>&, FormatContext& ctx) ->
+      typename FormatContext::iterator {
+    // NOTE: for compilers that support C++17, this empty function instantiation
+    // can be replaced with a constexpr branch in the variadic overload.
+    return ctx.out();
+  }
+
+  template <typename FormatContext, typename Arg, typename... Args>
+  auto format_args(const tuple_join_view<Char, T...>& value, FormatContext& ctx,
+                   const Arg& arg, const Args&... args) ->
+      typename FormatContext::iterator {
+    using base = formatter<typename std::decay<Arg>::type, Char>;
+    auto out = base().format(arg, ctx);
+    if (sizeof...(Args) > 0) {
+      out = std::copy(value.sep.begin(), value.sep.end(), out);
+      ctx.advance_to(out);
+      return format_args(value, ctx, args...);
+    }
+    return out;
+  }
+};
+
+FMT_MODULE_EXPORT_BEGIN
+
+/**
+  \rst
+  Returns an object that formats `tuple` with elements separated by `sep`.
+
+  **Example**::
+
+    std::tuple<int, char> t = {1, 'a'};
+    fmt::print("{}", fmt::join(t, ", "));
+    // Output: "1, a"
+  \endrst
+ */
+template <typename... T>
+FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple, string_view sep)
+    -> tuple_join_view<char, T...> {
+  return {tuple, sep};
+}
+
+template <typename... T>
+FMT_CONSTEXPR auto join(const std::tuple<T...>& tuple,
+                        basic_string_view<wchar_t> sep)
+    -> tuple_join_view<wchar_t, T...> {
+  return {tuple, sep};
+}
+
+/**
+  \rst
+  Returns an object that formats `initializer_list` with elements separated by
+  `sep`.
+
+  **Example**::
+
+    fmt::print("{}", fmt::join({1, 2, 3}, ", "));
+    // Output: "1, 2, 3"
+  \endrst
+ */
+template <typename T>
+auto join(std::initializer_list<T> list, string_view sep)
+    -> join_view<const T*, const T*> {
+  return join(std::begin(list), std::end(list), sep);
+}
+
+FMT_MODULE_EXPORT_END
+FMT_END_NAMESPACE
+
+#endif  // FMT_RANGES_H_

Libs/spdlog/fmt/bundled/xchar.h

@@ -0,0 +1,236 @@
+// Formatting library for C++ - optional wchar_t and exotic character support
+//
+// Copyright (c) 2012 - present, Victor Zverovich
+// All rights reserved.
+//
+// For the license information refer to format.h.
+
+#ifndef FMT_WCHAR_H_
+#define FMT_WCHAR_H_
+
+#include <cwchar>
+#include <tuple>
+
+#include "format.h"
+
+FMT_BEGIN_NAMESPACE
+namespace detail {
+template <typename T>
+using is_exotic_char = bool_constant<!std::is_same<T, char>::value>;
+}
+
+FMT_MODULE_EXPORT_BEGIN
+
+using wstring_view = basic_string_view<wchar_t>;
+using wformat_parse_context = basic_format_parse_context<wchar_t>;
+using wformat_context = buffer_context<wchar_t>;
+using wformat_args = basic_format_args<wformat_context>;
+using wmemory_buffer = basic_memory_buffer<wchar_t>;
+
+#if FMT_GCC_VERSION && FMT_GCC_VERSION < 409
+// Workaround broken conversion on older gcc.
+template <typename... Args> using wformat_string = wstring_view;
+#else
+template <typename... Args>
+using wformat_string = basic_format_string<wchar_t, type_identity_t<Args>...>;
+#endif
+
+template <> struct is_char<wchar_t> : std::true_type {};
+template <> struct is_char<detail::char8_type> : std::true_type {};
+template <> struct is_char<char16_t> : std::true_type {};
+template <> struct is_char<char32_t> : std::true_type {};
+
+template <typename... Args>
+constexpr format_arg_store<wformat_context, Args...> make_wformat_args(
+    const Args&... args) {
+  return {args...};
+}
+
+inline namespace literals {
+constexpr auto operator"" _format(const wchar_t* s, size_t n)
+    -> detail::udl_formatter<wchar_t> {
+  return {{s, n}};
+}
+
+#if FMT_USE_USER_DEFINED_LITERALS && !FMT_USE_NONTYPE_TEMPLATE_PARAMETERS
+constexpr detail::udl_arg<wchar_t> operator"" _a(const wchar_t* s, size_t) {
+  return {s};
+}
+#endif
+}  // namespace literals
+
+template <typename It, typename Sentinel>
+auto join(It begin, Sentinel end, wstring_view sep)
+    -> join_view<It, Sentinel, wchar_t> {
+  return {begin, end, sep};
+}
+
+template <typename Range>
+auto join(Range&& range, wstring_view sep)
+    -> join_view<detail::iterator_t<Range>, detail::sentinel_t<Range>,
+                 wchar_t> {
+  return join(std::begin(range), std::end(range), sep);
+}
+
+template <typename T>
+auto join(std::initializer_list<T> list, wstring_view sep)
+    -> join_view<const T*, const T*, wchar_t> {
+  return join(std::begin(list), std::end(list), sep);
+}
+
+template <typename Char, FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
+auto vformat(basic_string_view<Char> format_str,
+             basic_format_args<buffer_context<type_identity_t<Char>>> args)
+    -> std::basic_string<Char> {
+  basic_memory_buffer<Char> buffer;
+  detail::vformat_to(buffer, format_str, args);
+  return to_string(buffer);
+}
+
+// Pass char_t as a default template parameter instead of using
+// std::basic_string<char_t<S>> to reduce the symbol size.
+template <typename S, typename... Args, typename Char = char_t<S>,
+          FMT_ENABLE_IF(!std::is_same<Char, char>::value)>
+auto format(const S& format_str, Args&&... args) -> std::basic_string<Char> {
+  const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+  return vformat(to_string_view(format_str), vargs);
+}
+
+template <typename Locale, typename S, typename Char = char_t<S>,
+          FMT_ENABLE_IF(detail::is_locale<Locale>::value&&
+                            detail::is_exotic_char<Char>::value)>
+inline auto vformat(
+    const Locale& loc, const S& format_str,
+    basic_format_args<buffer_context<type_identity_t<Char>>> args)
+    -> std::basic_string<Char> {
+  return detail::vformat(loc, to_string_view(format_str), args);
+}
+
+template <typename Locale, typename S, typename... Args,
+          typename Char = char_t<S>,
+          FMT_ENABLE_IF(detail::is_locale<Locale>::value&&
+                            detail::is_exotic_char<Char>::value)>
+inline auto format(const Locale& loc, const S& format_str, Args&&... args)
+    -> std::basic_string<Char> {
+  return detail::vformat(loc, to_string_view(format_str),
+                         fmt::make_args_checked<Args...>(format_str, args...));
+}
+
+template <typename OutputIt, typename S, typename Char = char_t<S>,
+          FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
+                            detail::is_exotic_char<Char>::value)>
+auto vformat_to(OutputIt out, const S& format_str,
+                basic_format_args<buffer_context<type_identity_t<Char>>> args)
+    -> OutputIt {
+  auto&& buf = detail::get_buffer<Char>(out);
+  detail::vformat_to(buf, to_string_view(format_str), args);
+  return detail::get_iterator(buf);
+}
+
+template <typename OutputIt, typename S, typename... Args,
+          typename Char = char_t<S>,
+          FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
+                            detail::is_exotic_char<Char>::value)>
+inline auto format_to(OutputIt out, const S& fmt, Args&&... args) -> OutputIt {
+  const auto& vargs = fmt::make_args_checked<Args...>(fmt, args...);
+  return vformat_to(out, to_string_view(fmt), vargs);
+}
+
+template <typename S, typename... Args, typename Char, size_t SIZE,
+          typename Allocator, FMT_ENABLE_IF(detail::is_string<S>::value)>
+FMT_DEPRECATED auto format_to(basic_memory_buffer<Char, SIZE, Allocator>& buf,
+                              const S& format_str, Args&&... args) ->
+    typename buffer_context<Char>::iterator {
+  const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+  detail::vformat_to(buf, to_string_view(format_str), vargs, {});
+  return detail::buffer_appender<Char>(buf);
+}
+
+template <typename Locale, typename S, typename OutputIt, typename... Args,
+          typename Char = char_t<S>,
+          FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
+                            detail::is_locale<Locale>::value&&
+                                detail::is_exotic_char<Char>::value)>
+inline auto vformat_to(
+    OutputIt out, const Locale& loc, const S& format_str,
+    basic_format_args<buffer_context<type_identity_t<Char>>> args) -> OutputIt {
+  auto&& buf = detail::get_buffer<Char>(out);
+  vformat_to(buf, to_string_view(format_str), args, detail::locale_ref(loc));
+  return detail::get_iterator(buf);
+}
+
+template <
+    typename OutputIt, typename Locale, typename S, typename... Args,
+    typename Char = char_t<S>,
+    bool enable = detail::is_output_iterator<OutputIt, Char>::value&&
+        detail::is_locale<Locale>::value&& detail::is_exotic_char<Char>::value>
+inline auto format_to(OutputIt out, const Locale& loc, const S& format_str,
+                      Args&&... args) ->
+    typename std::enable_if<enable, OutputIt>::type {
+  const auto& vargs = fmt::make_args_checked<Args...>(format_str, args...);
+  return vformat_to(out, loc, to_string_view(format_str), vargs);
+}
+
+template <typename OutputIt, typename Char, typename... Args,
+          FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
+                            detail::is_exotic_char<Char>::value)>
+inline auto vformat_to_n(
+    OutputIt out, size_t n, basic_string_view<Char> format_str,
+    basic_format_args<buffer_context<type_identity_t<Char>>> args)
+    -> format_to_n_result<OutputIt> {
+  detail::iterator_buffer<OutputIt, Char, detail::fixed_buffer_traits> buf(out,
+                                                                           n);
+  detail::vformat_to(buf, format_str, args);
+  return {buf.out(), buf.count()};
+}
+
+template <typename OutputIt, typename S, typename... Args,
+          typename Char = char_t<S>,
+          FMT_ENABLE_IF(detail::is_output_iterator<OutputIt, Char>::value&&
+                            detail::is_exotic_char<Char>::value)>
+inline auto format_to_n(OutputIt out, size_t n, const S& fmt,
+                        const Args&... args) -> format_to_n_result<OutputIt> {
+  const auto& vargs = fmt::make_args_checked<Args...>(fmt, args...);
+  return vformat_to_n(out, n, to_string_view(fmt), vargs);
+}
+
+template <typename S, typename... Args, typename Char = char_t<S>,
+          FMT_ENABLE_IF(detail::is_exotic_char<Char>::value)>
+inline auto formatted_size(const S& fmt, Args&&... args) -> size_t {
+  detail::counting_buffer<Char> buf;
+  const auto& vargs = fmt::make_args_checked<Args...>(fmt, args...);
+  detail::vformat_to(buf, to_string_view(fmt), vargs);
+  return buf.count();
+}
+
+inline void vprint(std::FILE* f, wstring_view fmt, wformat_args args) {
+  wmemory_buffer buffer;
+  detail::vformat_to(buffer, fmt, args);
+  buffer.push_back(L'\0');
+  if (std::fputws(buffer.data(), f) == -1)
+    FMT_THROW(system_error(errno, FMT_STRING("cannot write to file")));
+}
+
+inline void vprint(wstring_view fmt, wformat_args args) {
+  vprint(stdout, fmt, args);
+}
+
+template <typename... T>
+void print(std::FILE* f, wformat_string<T...> fmt, T&&... args) {
+  return vprint(f, wstring_view(fmt), make_wformat_args(args...));
+}
+
+template <typename... T> void print(wformat_string<T...> fmt, T&&... args) {
+  return vprint(wstring_view(fmt), make_wformat_args(args...));
+}
+
+/**
+  Converts *value* to ``std::wstring`` using the default format for type *T*.
+ */
+template <typename T> inline auto to_wstring(const T& value) -> std::wstring {
+  return format(FMT_STRING(L"{}"), value);
+}
+FMT_MODULE_EXPORT_END
+FMT_END_NAMESPACE
+
+#endif  // FMT_WCHAR_H_

Libs/spdlog/fmt/chrono.h

@@ -0,0 +1,20 @@
+//
+// Copyright(c) 2016 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// include bundled or external copy of fmtlib's chrono support
+//
+
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#    ifdef SPDLOG_HEADER_ONLY
+#        ifndef FMT_HEADER_ONLY
+#            define FMT_HEADER_ONLY
+#        endif
+#    endif
+#    include <spdlog/fmt/bundled/chrono.h>
+#else
+#    include <fmt/chrono.h>
+#endif

Libs/spdlog/fmt/compile.h

@@ -0,0 +1,20 @@
+//
+// Copyright(c) 2016 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// include bundled or external copy of fmtlib's ostream support
+//
+
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#    ifdef SPDLOG_HEADER_ONLY
+#        ifndef FMT_HEADER_ONLY
+#            define FMT_HEADER_ONLY
+#        endif
+#    endif
+#    include <spdlog/fmt/bundled/compile.h>
+#else
+#    include <fmt/compile.h>
+#endif

Libs/spdlog/fmt/fmt.h

@@ -0,0 +1,27 @@
+//
+// Copyright(c) 2016-2018 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+
+//
+// Include a bundled header-only copy of fmtlib or an external one.
+// By default spdlog include its own copy.
+//
+
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#    if !defined(SPDLOG_COMPILED_LIB) && !defined(FMT_HEADER_ONLY)
+#        define FMT_HEADER_ONLY
+#    endif
+#    ifndef FMT_USE_WINDOWS_H
+#        define FMT_USE_WINDOWS_H 0
+#    endif
+// enable the 'n' flag in for backward compatibility with fmt 6.x
+#    define FMT_DEPRECATED_N_SPECIFIER
+#    include <spdlog/fmt/bundled/core.h>
+#    include <spdlog/fmt/bundled/format.h>
+#else // SPDLOG_FMT_EXTERNAL is defined - use external fmtlib
+#    include <fmt/core.h>
+#    include <fmt/format.h>
+#endif

Libs/spdlog/fmt/ostr.h

@@ -0,0 +1,20 @@
+//
+// Copyright(c) 2016 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// include bundled or external copy of fmtlib's ostream support
+//
+
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#    ifdef SPDLOG_HEADER_ONLY
+#        ifndef FMT_HEADER_ONLY
+#            define FMT_HEADER_ONLY
+#        endif
+#    endif
+#    include <spdlog/fmt/bundled/ostream.h>
+#else
+#    include <fmt/ostream.h>
+#endif

Libs/spdlog/fmt/xchar.h

@@ -0,0 +1,20 @@
+//
+// Copyright(c) 2016 Gabi Melman.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+//
+
+#pragma once
+//
+// include bundled or external copy of fmtlib's ostream support
+//
+
+#if !defined(SPDLOG_FMT_EXTERNAL)
+#    ifdef SPDLOG_HEADER_ONLY
+#        ifndef FMT_HEADER_ONLY
+#            define FMT_HEADER_ONLY
+#        endif
+#    endif
+#    include <spdlog/fmt/bundled/xchar.h>
+#else
+#    include <fmt/xchar.h>
+#endif

Libs/spdlog/formatter.h

@@ -0,0 +1,18 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/details/log_msg.h>
+
+namespace spdlog {
+
+class formatter
+{
+public:
+    virtual ~formatter() = default;
+    virtual void format(const details::log_msg &msg, memory_buf_t &dest) = 0;
+    virtual std::unique_ptr<formatter> clone() const = 0;
+};
+} // namespace spdlog

Libs/spdlog/fwd.h

@@ -0,0 +1,14 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+namespace spdlog {
+class logger;
+class formatter;
+
+namespace sinks {
+class sink;
+}
+
+} // namespace spdlog

Libs/spdlog/logger-inl.h

@@ -0,0 +1,257 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/logger.h>
+#endif
+
+#include <spdlog/sinks/sink.h>
+#include <spdlog/details/backtracer.h>
+#include <spdlog/pattern_formatter.h>
+
+#include <cstdio>
+
+namespace spdlog {
+
+// public methods
+SPDLOG_INLINE logger::logger(const logger &other)
+    : name_(other.name_)
+    , sinks_(other.sinks_)
+    , level_(other.level_.load(std::memory_order_relaxed))
+    , flush_level_(other.flush_level_.load(std::memory_order_relaxed))
+    , custom_err_handler_(other.custom_err_handler_)
+    , tracer_(other.tracer_)
+{}
+
+SPDLOG_INLINE logger::logger(logger &&other) SPDLOG_NOEXCEPT : name_(std::move(other.name_)),
+                                                               sinks_(std::move(other.sinks_)),
+                                                               level_(other.level_.load(std::memory_order_relaxed)),
+                                                               flush_level_(other.flush_level_.load(std::memory_order_relaxed)),
+                                                               custom_err_handler_(std::move(other.custom_err_handler_)),
+                                                               tracer_(std::move(other.tracer_))
+
+{}
+
+SPDLOG_INLINE logger &logger::operator=(logger other) SPDLOG_NOEXCEPT
+{
+    this->swap(other);
+    return *this;
+}
+
+SPDLOG_INLINE void logger::swap(spdlog::logger &other) SPDLOG_NOEXCEPT
+{
+    name_.swap(other.name_);
+    sinks_.swap(other.sinks_);
+
+    // swap level_
+    auto other_level = other.level_.load();
+    auto my_level = level_.exchange(other_level);
+    other.level_.store(my_level);
+
+    // swap flush level_
+    other_level = other.flush_level_.load();
+    my_level = flush_level_.exchange(other_level);
+    other.flush_level_.store(my_level);
+
+    custom_err_handler_.swap(other.custom_err_handler_);
+    std::swap(tracer_, other.tracer_);
+}
+
+SPDLOG_INLINE void swap(logger &a, logger &b)
+{
+    a.swap(b);
+}
+
+SPDLOG_INLINE void logger::set_level(level::level_enum log_level)
+{
+    level_.store(log_level);
+}
+
+SPDLOG_INLINE level::level_enum logger::level() const
+{
+    return static_cast<level::level_enum>(level_.load(std::memory_order_relaxed));
+}
+
+SPDLOG_INLINE const std::string &logger::name() const
+{
+    return name_;
+}
+
+// set formatting for the sinks in this logger.
+// each sink will get a separate instance of the formatter object.
+SPDLOG_INLINE void logger::set_formatter(std::unique_ptr<formatter> f)
+{
+    for (auto it = sinks_.begin(); it != sinks_.end(); ++it)
+    {
+        if (std::next(it) == sinks_.end())
+        {
+            // last element - we can be move it.
+            (*it)->set_formatter(std::move(f));
+            break; // to prevent clang-tidy warning
+        }
+        else
+        {
+            (*it)->set_formatter(f->clone());
+        }
+    }
+}
+
+SPDLOG_INLINE void logger::set_pattern(std::string pattern, pattern_time_type time_type)
+{
+    auto new_formatter = details::make_unique<pattern_formatter>(std::move(pattern), time_type);
+    set_formatter(std::move(new_formatter));
+}
+
+// create new backtrace sink and move to it all our child sinks
+SPDLOG_INLINE void logger::enable_backtrace(size_t n_messages)
+{
+    tracer_.enable(n_messages);
+}
+
+// restore orig sinks and level and delete the backtrace sink
+SPDLOG_INLINE void logger::disable_backtrace()
+{
+    tracer_.disable();
+}
+
+SPDLOG_INLINE void logger::dump_backtrace()
+{
+    dump_backtrace_();
+}
+
+// flush functions
+SPDLOG_INLINE void logger::flush()
+{
+    flush_();
+}
+
+SPDLOG_INLINE void logger::flush_on(level::level_enum log_level)
+{
+    flush_level_.store(log_level);
+}
+
+SPDLOG_INLINE level::level_enum logger::flush_level() const
+{
+    return static_cast<level::level_enum>(flush_level_.load(std::memory_order_relaxed));
+}
+
+// sinks
+SPDLOG_INLINE const std::vector<sink_ptr> &logger::sinks() const
+{
+    return sinks_;
+}
+
+SPDLOG_INLINE std::vector<sink_ptr> &logger::sinks()
+{
+    return sinks_;
+}
+
+// error handler
+SPDLOG_INLINE void logger::set_error_handler(err_handler handler)
+{
+    custom_err_handler_ = std::move(handler);
+}
+
+// create new logger with same sinks and configuration.
+SPDLOG_INLINE std::shared_ptr<logger> logger::clone(std::string logger_name)
+{
+    auto cloned = std::make_shared<logger>(*this);
+    cloned->name_ = std::move(logger_name);
+    return cloned;
+}
+
+// protected methods
+SPDLOG_INLINE void logger::log_it_(const spdlog::details::log_msg &log_msg, bool log_enabled, bool traceback_enabled)
+{
+    if (log_enabled)
+    {
+        sink_it_(log_msg);
+    }
+    if (traceback_enabled)
+    {
+        tracer_.push_back(log_msg);
+    }
+}
+
+SPDLOG_INLINE void logger::sink_it_(const details::log_msg &msg)
+{
+    for (auto &sink : sinks_)
+    {
+        if (sink->should_log(msg.level))
+        {
+            SPDLOG_TRY
+            {
+                sink->log(msg);
+            }
+            SPDLOG_LOGGER_CATCH()
+        }
+    }
+
+    if (should_flush_(msg))
+    {
+        flush_();
+    }
+}
+
+SPDLOG_INLINE void logger::flush_()
+{
+    for (auto &sink : sinks_)
+    {
+        SPDLOG_TRY
+        {
+            sink->flush();
+        }
+        SPDLOG_LOGGER_CATCH()
+    }
+}
+
+SPDLOG_INLINE void logger::dump_backtrace_()
+{
+    using details::log_msg;
+    if (tracer_.enabled())
+    {
+        sink_it_(log_msg{name(), level::info, "****************** Backtrace Start ******************"});
+        tracer_.foreach_pop([this](const log_msg &msg) { this->sink_it_(msg); });
+        sink_it_(log_msg{name(), level::info, "****************** Backtrace End ********************"});
+    }
+}
+
+SPDLOG_INLINE bool logger::should_flush_(const details::log_msg &msg)
+{
+    auto flush_level = flush_level_.load(std::memory_order_relaxed);
+    return (msg.level >= flush_level) && (msg.level != level::off);
+}
+
+SPDLOG_INLINE void logger::err_handler_(const std::string &msg)
+{
+    if (custom_err_handler_)
+    {
+        custom_err_handler_(msg);
+    }
+    else
+    {
+        using std::chrono::system_clock;
+        static std::mutex mutex;
+        static std::chrono::system_clock::time_point last_report_time;
+        static size_t err_counter = 0;
+        std::lock_guard<std::mutex> lk{mutex};
+        auto now = system_clock::now();
+        err_counter++;
+        if (now - last_report_time < std::chrono::seconds(1))
+        {
+            return;
+        }
+        last_report_time = now;
+        auto tm_time = details::os::localtime(system_clock::to_time_t(now));
+        char date_buf[64];
+        std::strftime(date_buf, sizeof(date_buf), "%Y-%m-%d %H:%M:%S", &tm_time);
+#if defined(USING_R) && defined(R_R_H) // if in R environment
+        REprintf("[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
+#else
+        std::fprintf(stderr, "[*** LOG ERROR #%04zu ***] [%s] [%s] {%s}\n", err_counter, date_buf, name().c_str(), msg.c_str());
+#endif
+    }
+}
+} // namespace spdlog

Libs/spdlog/logger.h

@@ -0,0 +1,405 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+// Thread safe logger (except for set_error_handler())
+// Has name, log level, vector of std::shared sink pointers and formatter
+// Upon each log write the logger:
+// 1. Checks if its log level is enough to log the message and if yes:
+// 2. Call the underlying sinks to do the job.
+// 3. Each sink use its own private copy of a formatter to format the message
+// and send to its destination.
+//
+// The use of private formatter per sink provides the opportunity to cache some
+// formatted data, and support for different format per sink.
+
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/backtracer.h>
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+#    ifndef _WIN32
+#        error SPDLOG_WCHAR_TO_UTF8_SUPPORT only supported on windows
+#    endif
+#    include <spdlog/details/os.h>
+#endif
+
+#include <vector>
+
+#ifndef SPDLOG_NO_EXCEPTIONS
+#    define SPDLOG_LOGGER_CATCH()                                                                                                          \
+        catch (const std::exception &ex)                                                                                                   \
+        {                                                                                                                                  \
+            err_handler_(ex.what());                                                                                                       \
+        }                                                                                                                                  \
+        catch (...)                                                                                                                        \
+        {                                                                                                                                  \
+            err_handler_("Rethrowing unknown exception in logger");                                                                        \
+            throw;                                                                                                                         \
+        }
+#else
+#    define SPDLOG_LOGGER_CATCH()
+#endif
+
+namespace spdlog {
+
+class SPDLOG_API logger
+{
+public:
+    // Empty logger
+    explicit logger(std::string name)
+        : name_(std::move(name))
+        , sinks_()
+    {}
+
+    // Logger with range on sinks
+    template<typename It>
+    logger(std::string name, It begin, It end)
+        : name_(std::move(name))
+        , sinks_(begin, end)
+    {}
+
+    // Logger with single sink
+    logger(std::string name, sink_ptr single_sink)
+        : logger(std::move(name), {std::move(single_sink)})
+    {}
+
+    // Logger with sinks init list
+    logger(std::string name, sinks_init_list sinks)
+        : logger(std::move(name), sinks.begin(), sinks.end())
+    {}
+
+    virtual ~logger() = default;
+
+    logger(const logger &other);
+    logger(logger &&other) SPDLOG_NOEXCEPT;
+    logger &operator=(logger other) SPDLOG_NOEXCEPT;
+    void swap(spdlog::logger &other) SPDLOG_NOEXCEPT;
+
+    template<typename... Args>
+    void log(source_loc loc, level::level_enum lvl, fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log_(loc, lvl, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void log(level::level_enum lvl, fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log(source_loc{}, lvl, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename T>
+    void log(level::level_enum lvl, const T &msg)
+    {
+        log(source_loc{}, lvl, msg);
+    }
+
+    // T can be statically converted to string_view
+    template<class T, typename std::enable_if<std::is_convertible<const T &, spdlog::string_view_t>::value, int>::type = 0>
+    void log(source_loc loc, level::level_enum lvl, const T &msg)
+    {
+        log(loc, lvl, string_view_t{msg});
+    }
+
+    // T cannot be statically converted to neither string_view, nor wstring_view and nor format string
+    template<class T, typename std::enable_if<!std::is_convertible<const T &, spdlog::string_view_t>::value &&
+                                                  !is_convertible_to_basic_format_string<const T &>::value,
+                          int>::type = 0>
+    void log(source_loc loc, level::level_enum lvl, const T &msg)
+    {
+        log(loc, lvl, "{}", msg);
+    }
+
+    void log(log_clock::time_point log_time, source_loc loc, level::level_enum lvl, string_view_t msg)
+    {
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
+        {
+            return;
+        }
+
+        details::log_msg log_msg(log_time, loc, name_, lvl, msg);
+        log_it_(log_msg, log_enabled, traceback_enabled);
+    }
+
+    void log(source_loc loc, level::level_enum lvl, string_view_t msg)
+    {
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
+        {
+            return;
+        }
+
+        details::log_msg log_msg(loc, name_, lvl, msg);
+        log_it_(log_msg, log_enabled, traceback_enabled);
+    }
+
+    void log(level::level_enum lvl, string_view_t msg)
+    {
+        log(source_loc{}, lvl, msg);
+    }
+
+    template<typename... Args>
+    void trace(fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log(level::trace, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void debug(fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log(level::debug, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void info(fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log(level::info, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void warn(fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log(level::warn, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void error(fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log(level::err, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void critical(fmt::format_string<Args...> fmt, Args &&...args)
+    {
+        log(level::critical, fmt, std::forward<Args>(args)...);
+    }
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+    template<typename... Args>
+    void log(level::level_enum lvl, fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log(source_loc{}, lvl, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void log(source_loc loc, level::level_enum lvl, fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log_(loc, lvl, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void trace(fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log(level::trace, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void debug(fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log(level::debug, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void info(fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log(level::info, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void warn(fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log(level::warn, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void error(fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log(level::err, fmt, std::forward<Args>(args)...);
+    }
+
+    template<typename... Args>
+    void critical(fmt::wformat_string<Args...> fmt, Args &&...args)
+    {
+        log(level::critical, fmt, std::forward<Args>(args)...);
+    }
+#endif
+
+    template<typename T>
+    void trace(const T &msg)
+    {
+        log(level::trace, msg);
+    }
+
+    template<typename T>
+    void debug(const T &msg)
+    {
+        log(level::debug, msg);
+    }
+
+    template<typename T>
+    void info(const T &msg)
+    {
+        log(level::info, msg);
+    }
+
+    template<typename T>
+    void warn(const T &msg)
+    {
+        log(level::warn, msg);
+    }
+
+    template<typename T>
+    void error(const T &msg)
+    {
+        log(level::err, msg);
+    }
+
+    template<typename T>
+    void critical(const T &msg)
+    {
+        log(level::critical, msg);
+    }
+
+    // return true logging is enabled for the given level.
+    bool should_log(level::level_enum msg_level) const
+    {
+        return msg_level >= level_.load(std::memory_order_relaxed);
+    }
+
+    // return true if backtrace logging is enabled.
+    bool should_backtrace() const
+    {
+        return tracer_.enabled();
+    }
+
+    void set_level(level::level_enum log_level);
+
+    level::level_enum level() const;
+
+    const std::string &name() const;
+
+    // set formatting for the sinks in this logger.
+    // each sink will get a separate instance of the formatter object.
+    void set_formatter(std::unique_ptr<formatter> f);
+
+    void set_pattern(std::string pattern, pattern_time_type time_type = pattern_time_type::local);
+
+    // backtrace support.
+    // efficiently store all debug/trace messages in a circular buffer until needed for debugging.
+    void enable_backtrace(size_t n_messages);
+    void disable_backtrace();
+    void dump_backtrace();
+
+    // flush functions
+    void flush();
+    void flush_on(level::level_enum log_level);
+    level::level_enum flush_level() const;
+
+    // sinks
+    const std::vector<sink_ptr> &sinks() const;
+
+    std::vector<sink_ptr> &sinks();
+
+    // error handler
+    void set_error_handler(err_handler);
+
+    // create new logger with same sinks and configuration.
+    virtual std::shared_ptr<logger> clone(std::string logger_name);
+
+protected:
+    std::string name_;
+    std::vector<sink_ptr> sinks_;
+    spdlog::level_t level_{level::info};
+    spdlog::level_t flush_level_{level::off};
+    err_handler custom_err_handler_{nullptr};
+    details::backtracer tracer_;
+
+    // common implementation for after templated public api has been resolved
+    template<typename... Args>
+    void log_(source_loc loc, level::level_enum lvl, string_view_t fmt, Args &&...args)
+    {
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
+        {
+            return;
+        }
+        SPDLOG_TRY
+        {
+            memory_buf_t buf;
+            fmt::detail::vformat_to(buf, fmt, fmt::make_format_args(args...));
+            details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
+            log_it_(log_msg, log_enabled, traceback_enabled);
+        }
+        SPDLOG_LOGGER_CATCH()
+    }
+
+#ifdef SPDLOG_WCHAR_TO_UTF8_SUPPORT
+    template<typename... Args>
+    void log_(source_loc loc, level::level_enum lvl, wstring_view_t fmt, Args &&...args)
+    {
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
+        {
+            return;
+        }
+        SPDLOG_TRY
+        {
+            // format to wmemory_buffer and convert to utf8
+            fmt::wmemory_buffer wbuf;
+            fmt::detail::vformat_to(wbuf, fmt, fmt::make_format_args<fmt::wformat_context>(args...));
+            memory_buf_t buf;
+            details::os::wstr_to_utf8buf(wstring_view_t(wbuf.data(), wbuf.size()), buf);
+            details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
+            log_it_(log_msg, log_enabled, traceback_enabled);
+        }
+        SPDLOG_LOGGER_CATCH()
+    }
+
+    // T can be statically converted to wstring_view, and no formatting needed.
+    template<class T, typename std::enable_if<std::is_convertible<const T &, spdlog::wstring_view_t>::value, int>::type = 0>
+    void log_(source_loc loc, level::level_enum lvl, const T &msg)
+    {
+        bool log_enabled = should_log(lvl);
+        bool traceback_enabled = tracer_.enabled();
+        if (!log_enabled && !traceback_enabled)
+        {
+            return;
+        }
+        SPDLOG_TRY
+        {
+            memory_buf_t buf;
+            details::os::wstr_to_utf8buf(msg, buf);
+            details::log_msg log_msg(loc, name_, lvl, string_view_t(buf.data(), buf.size()));
+            log_it_(log_msg, log_enabled, traceback_enabled);
+        }
+        SPDLOG_LOGGER_CATCH()
+    }
+
+#endif // SPDLOG_WCHAR_TO_UTF8_SUPPORT
+
+    // log the given message (if the given log level is high enough),
+    // and save backtrace (if backtrace is enabled).
+    void log_it_(const details::log_msg &log_msg, bool log_enabled, bool traceback_enabled);
+    virtual void sink_it_(const details::log_msg &msg);
+    virtual void flush_();
+    void dump_backtrace_();
+    bool should_flush_(const details::log_msg &msg);
+
+    // handle errors during logging.
+    // default handler prints the error to stderr at max rate of 1 message/sec.
+    void err_handler_(const std::string &msg);
+};
+
+void swap(logger &a, logger &b);
+
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "logger-inl.h"
+#endif

Libs/spdlog/pattern_formatter.h

@@ -0,0 +1,126 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/os.h>
+#include <spdlog/formatter.h>
+
+#include <chrono>
+#include <ctime>
+#include <memory>
+
+#include <string>
+#include <vector>
+#include <unordered_map>
+
+namespace spdlog {
+namespace details {
+
+// padding information.
+struct padding_info
+{
+    enum class pad_side
+    {
+        left,
+        right,
+        center
+    };
+
+    padding_info() = default;
+    padding_info(size_t width, padding_info::pad_side side, bool truncate)
+        : width_(width)
+        , side_(side)
+        , truncate_(truncate)
+        , enabled_(true)
+    {}
+
+    bool enabled() const
+    {
+        return enabled_;
+    }
+    size_t width_ = 0;
+    pad_side side_ = pad_side::left;
+    bool truncate_ = false;
+    bool enabled_ = false;
+};
+
+class SPDLOG_API flag_formatter
+{
+public:
+    explicit flag_formatter(padding_info padinfo)
+        : padinfo_(padinfo)
+    {}
+    flag_formatter() = default;
+    virtual ~flag_formatter() = default;
+    virtual void format(const details::log_msg &msg, const std::tm &tm_time, memory_buf_t &dest) = 0;
+
+protected:
+    padding_info padinfo_;
+};
+
+} // namespace details
+
+class SPDLOG_API custom_flag_formatter : public details::flag_formatter
+{
+public:
+    virtual std::unique_ptr<custom_flag_formatter> clone() const = 0;
+
+    void set_padding_info(details::padding_info padding)
+    {
+        flag_formatter::padinfo_ = padding;
+    }
+};
+
+class SPDLOG_API pattern_formatter final : public formatter
+{
+public:
+    using custom_flags = std::unordered_map<char, std::unique_ptr<custom_flag_formatter>>;
+
+    explicit pattern_formatter(std::string pattern, pattern_time_type time_type = pattern_time_type::local,
+        std::string eol = spdlog::details::os::default_eol, custom_flags custom_user_flags = custom_flags());
+
+    // use default pattern is not given
+    explicit pattern_formatter(pattern_time_type time_type = pattern_time_type::local, std::string eol = spdlog::details::os::default_eol);
+
+    pattern_formatter(const pattern_formatter &other) = delete;
+    pattern_formatter &operator=(const pattern_formatter &other) = delete;
+
+    std::unique_ptr<formatter> clone() const override;
+    void format(const details::log_msg &msg, memory_buf_t &dest) override;
+
+    template<typename T, typename... Args>
+    pattern_formatter &add_flag(char flag, Args &&...args)
+    {
+        custom_handlers_[flag] = details::make_unique<T>(std::forward<Args>(args)...);
+        return *this;
+    }
+    void set_pattern(std::string pattern);
+
+private:
+    std::string pattern_;
+    std::string eol_;
+    pattern_time_type pattern_time_type_;
+    std::tm cached_tm_;
+    std::chrono::seconds last_log_secs_;
+    std::vector<std::unique_ptr<details::flag_formatter>> formatters_;
+    custom_flags custom_handlers_;
+
+    std::tm get_time_(const details::log_msg &msg);
+    template<typename Padder>
+    void handle_flag_(char flag, details::padding_info padding);
+
+    // Extract given pad spec (e.g. %8X)
+    // Advance the given it pass the end of the padding spec found (if any)
+    // Return padding.
+    static details::padding_info handle_padspec_(std::string::const_iterator &it, std::string::const_iterator end);
+
+    void compile_pattern_(const std::string &pattern);
+};
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "pattern_formatter-inl.h"
+#endif

Libs/spdlog/sinks/android_sink.h

@@ -0,0 +1,119 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifdef __ANDROID__
+
+#    include <spdlog/details/fmt_helper.h>
+#    include <spdlog/details/null_mutex.h>
+#    include <spdlog/details/os.h>
+#    include <spdlog/sinks/base_sink.h>
+#    include <spdlog/details/synchronous_factory.h>
+
+#    include <android/log.h>
+#    include <chrono>
+#    include <mutex>
+#    include <string>
+#    include <thread>
+
+#    if !defined(SPDLOG_ANDROID_RETRIES)
+#        define SPDLOG_ANDROID_RETRIES 2
+#    endif
+
+namespace spdlog {
+namespace sinks {
+
+/*
+ * Android sink (logging using __android_log_write)
+ */
+template<typename Mutex>
+class android_sink final : public base_sink<Mutex>
+{
+public:
+    explicit android_sink(std::string tag = "spdlog", bool use_raw_msg = false)
+        : tag_(std::move(tag))
+        , use_raw_msg_(use_raw_msg)
+    {}
+
+protected:
+    void sink_it_(const details::log_msg &msg) override
+    {
+        const android_LogPriority priority = convert_to_android_(msg.level);
+        memory_buf_t formatted;
+        if (use_raw_msg_)
+        {
+            details::fmt_helper::append_string_view(msg.payload, formatted);
+        }
+        else
+        {
+            base_sink<Mutex>::formatter_->format(msg, formatted);
+        }
+        formatted.push_back('\0');
+        const char *msg_output = formatted.data();
+
+        // See system/core/liblog/logger_write.c for explanation of return value
+        int ret = __android_log_write(priority, tag_.c_str(), msg_output);
+        int retry_count = 0;
+        while ((ret == -11 /*EAGAIN*/) && (retry_count < SPDLOG_ANDROID_RETRIES))
+        {
+            details::os::sleep_for_millis(5);
+            ret = __android_log_write(priority, tag_.c_str(), msg_output);
+            retry_count++;
+        }
+
+        if (ret < 0)
+        {
+            throw_spdlog_ex("__android_log_write() failed", ret);
+        }
+    }
+
+    void flush_() override {}
+
+private:
+    static android_LogPriority convert_to_android_(spdlog::level::level_enum level)
+    {
+        switch (level)
+        {
+        case spdlog::level::trace:
+            return ANDROID_LOG_VERBOSE;
+        case spdlog::level::debug:
+            return ANDROID_LOG_DEBUG;
+        case spdlog::level::info:
+            return ANDROID_LOG_INFO;
+        case spdlog::level::warn:
+            return ANDROID_LOG_WARN;
+        case spdlog::level::err:
+            return ANDROID_LOG_ERROR;
+        case spdlog::level::critical:
+            return ANDROID_LOG_FATAL;
+        default:
+            return ANDROID_LOG_DEFAULT;
+        }
+    }
+
+    std::string tag_;
+    bool use_raw_msg_;
+};
+
+using android_sink_mt = android_sink<std::mutex>;
+using android_sink_st = android_sink<details::null_mutex>;
+} // namespace sinks
+
+// Create and register android syslog logger
+
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> android_logger_mt(const std::string &logger_name, const std::string &tag = "spdlog")
+{
+    return Factory::template create<sinks::android_sink_mt>(logger_name, tag);
+}
+
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> android_logger_st(const std::string &logger_name, const std::string &tag = "spdlog")
+{
+    return Factory::template create<sinks::android_sink_st>(logger_name, tag);
+}
+
+} // namespace spdlog
+
+#endif // __ANDROID__

Libs/spdlog/sinks/ansicolor_sink-inl.h

@@ -0,0 +1,145 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/sinks/ansicolor_sink.h>
+#endif
+
+#include <spdlog/pattern_formatter.h>
+#include <spdlog/details/os.h>
+
+namespace spdlog {
+namespace sinks {
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE ansicolor_sink<ConsoleMutex>::ansicolor_sink(FILE *target_file, color_mode mode)
+    : target_file_(target_file)
+    , mutex_(ConsoleMutex::mutex())
+    , formatter_(details::make_unique<spdlog::pattern_formatter>())
+
+{
+    set_color_mode(mode);
+    colors_[level::trace] = to_string_(white);
+    colors_[level::debug] = to_string_(cyan);
+    colors_[level::info] = to_string_(green);
+    colors_[level::warn] = to_string_(yellow_bold);
+    colors_[level::err] = to_string_(red_bold);
+    colors_[level::critical] = to_string_(bold_on_red);
+    colors_[level::off] = to_string_(reset);
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_color(level::level_enum color_level, string_view_t color)
+{
+    std::lock_guard<mutex_t> lock(mutex_);
+    colors_[color_level] = to_string_(color);
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::log(const details::log_msg &msg)
+{
+    // Wrap the originally formatted message in color codes.
+    // If color is not supported in the terminal, log as is instead.
+    std::lock_guard<mutex_t> lock(mutex_);
+    msg.color_range_start = 0;
+    msg.color_range_end = 0;
+    memory_buf_t formatted;
+    formatter_->format(msg, formatted);
+    if (should_do_colors_ && msg.color_range_end > msg.color_range_start)
+    {
+        // before color range
+        print_range_(formatted, 0, msg.color_range_start);
+        // in color range
+        print_ccode_(colors_[msg.level]);
+        print_range_(formatted, msg.color_range_start, msg.color_range_end);
+        print_ccode_(reset);
+        // after color range
+        print_range_(formatted, msg.color_range_end, formatted.size());
+    }
+    else // no color
+    {
+        print_range_(formatted, 0, formatted.size());
+    }
+    fflush(target_file_);
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::flush()
+{
+    std::lock_guard<mutex_t> lock(mutex_);
+    fflush(target_file_);
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_pattern(const std::string &pattern)
+{
+    std::lock_guard<mutex_t> lock(mutex_);
+    formatter_ = std::unique_ptr<spdlog::formatter>(new pattern_formatter(pattern));
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter)
+{
+    std::lock_guard<mutex_t> lock(mutex_);
+    formatter_ = std::move(sink_formatter);
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE bool ansicolor_sink<ConsoleMutex>::should_color()
+{
+    return should_do_colors_;
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::set_color_mode(color_mode mode)
+{
+    switch (mode)
+    {
+    case color_mode::always:
+        should_do_colors_ = true;
+        return;
+    case color_mode::automatic:
+        should_do_colors_ = details::os::in_terminal(target_file_) && details::os::is_color_terminal();
+        return;
+    case color_mode::never:
+        should_do_colors_ = false;
+        return;
+    default:
+        should_do_colors_ = false;
+    }
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::print_ccode_(const string_view_t &color_code)
+{
+    fwrite(color_code.data(), sizeof(char), color_code.size(), target_file_);
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE void ansicolor_sink<ConsoleMutex>::print_range_(const memory_buf_t &formatted, size_t start, size_t end)
+{
+    fwrite(formatted.data() + start, sizeof(char), end - start, target_file_);
+}
+
+template<typename ConsoleMutex>
+SPDLOG_INLINE std::string ansicolor_sink<ConsoleMutex>::to_string_(const string_view_t &sv)
+{
+    return std::string(sv.data(), sv.size());
+}
+
+// ansicolor_stdout_sink
+template<typename ConsoleMutex>
+SPDLOG_INLINE ansicolor_stdout_sink<ConsoleMutex>::ansicolor_stdout_sink(color_mode mode)
+    : ansicolor_sink<ConsoleMutex>(stdout, mode)
+{}
+
+// ansicolor_stderr_sink
+template<typename ConsoleMutex>
+SPDLOG_INLINE ansicolor_stderr_sink<ConsoleMutex>::ansicolor_stderr_sink(color_mode mode)
+    : ansicolor_sink<ConsoleMutex>(stderr, mode)
+{}
+
+} // namespace sinks
+} // namespace spdlog

Libs/spdlog/sinks/ansicolor_sink.h

@@ -0,0 +1,118 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/details/console_globals.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/sink.h>
+#include <memory>
+#include <mutex>
+#include <string>
+#include <array>
+
+namespace spdlog {
+namespace sinks {
+
+/**
+ * This sink prefixes the output with an ANSI escape sequence color code
+ * depending on the severity
+ * of the message.
+ * If no color terminal detected, omit the escape codes.
+ */
+
+template<typename ConsoleMutex>
+class ansicolor_sink : public sink
+{
+public:
+    using mutex_t = typename ConsoleMutex::mutex_t;
+    ansicolor_sink(FILE *target_file, color_mode mode);
+    ~ansicolor_sink() override = default;
+
+    ansicolor_sink(const ansicolor_sink &other) = delete;
+    ansicolor_sink(ansicolor_sink &&other) = delete;
+
+    ansicolor_sink &operator=(const ansicolor_sink &other) = delete;
+    ansicolor_sink &operator=(ansicolor_sink &&other) = delete;
+
+    void set_color(level::level_enum color_level, string_view_t color);
+    void set_color_mode(color_mode mode);
+    bool should_color();
+
+    void log(const details::log_msg &msg) override;
+    void flush() override;
+    void set_pattern(const std::string &pattern) final;
+    void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) override;
+
+    // Formatting codes
+    const string_view_t reset = "\033[m";
+    const string_view_t bold = "\033[1m";
+    const string_view_t dark = "\033[2m";
+    const string_view_t underline = "\033[4m";
+    const string_view_t blink = "\033[5m";
+    const string_view_t reverse = "\033[7m";
+    const string_view_t concealed = "\033[8m";
+    const string_view_t clear_line = "\033[K";
+
+    // Foreground colors
+    const string_view_t black = "\033[30m";
+    const string_view_t red = "\033[31m";
+    const string_view_t green = "\033[32m";
+    const string_view_t yellow = "\033[33m";
+    const string_view_t blue = "\033[34m";
+    const string_view_t magenta = "\033[35m";
+    const string_view_t cyan = "\033[36m";
+    const string_view_t white = "\033[37m";
+
+    /// Background colors
+    const string_view_t on_black = "\033[40m";
+    const string_view_t on_red = "\033[41m";
+    const string_view_t on_green = "\033[42m";
+    const string_view_t on_yellow = "\033[43m";
+    const string_view_t on_blue = "\033[44m";
+    const string_view_t on_magenta = "\033[45m";
+    const string_view_t on_cyan = "\033[46m";
+    const string_view_t on_white = "\033[47m";
+
+    /// Bold colors
+    const string_view_t yellow_bold = "\033[33m\033[1m";
+    const string_view_t red_bold = "\033[31m\033[1m";
+    const string_view_t bold_on_red = "\033[1m\033[41m";
+
+private:
+    FILE *target_file_;
+    mutex_t &mutex_;
+    bool should_do_colors_;
+    std::unique_ptr<spdlog::formatter> formatter_;
+    std::array<std::string, level::n_levels> colors_;
+    void print_ccode_(const string_view_t &color_code);
+    void print_range_(const memory_buf_t &formatted, size_t start, size_t end);
+    static std::string to_string_(const string_view_t &sv);
+};
+
+template<typename ConsoleMutex>
+class ansicolor_stdout_sink : public ansicolor_sink<ConsoleMutex>
+{
+public:
+    explicit ansicolor_stdout_sink(color_mode mode = color_mode::automatic);
+};
+
+template<typename ConsoleMutex>
+class ansicolor_stderr_sink : public ansicolor_sink<ConsoleMutex>
+{
+public:
+    explicit ansicolor_stderr_sink(color_mode mode = color_mode::automatic);
+};
+
+using ansicolor_stdout_sink_mt = ansicolor_stdout_sink<details::console_mutex>;
+using ansicolor_stdout_sink_st = ansicolor_stdout_sink<details::console_nullmutex>;
+
+using ansicolor_stderr_sink_mt = ansicolor_stderr_sink<details::console_mutex>;
+using ansicolor_stderr_sink_st = ansicolor_stderr_sink<details::console_nullmutex>;
+
+} // namespace sinks
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "ansicolor_sink-inl.h"
+#endif

Libs/spdlog/sinks/base_sink-inl.h

@@ -0,0 +1,63 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/sinks/base_sink.h>
+#endif
+
+#include <spdlog/common.h>
+#include <spdlog/pattern_formatter.h>
+
+#include <memory>
+
+template<typename Mutex>
+SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::base_sink()
+    : formatter_{details::make_unique<spdlog::pattern_formatter>()}
+{}
+
+template<typename Mutex>
+SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::base_sink(std::unique_ptr<spdlog::formatter> formatter)
+    : formatter_{std::move(formatter)}
+{}
+
+template<typename Mutex>
+void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::log(const details::log_msg &msg)
+{
+    std::lock_guard<Mutex> lock(mutex_);
+    sink_it_(msg);
+}
+
+template<typename Mutex>
+void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::flush()
+{
+    std::lock_guard<Mutex> lock(mutex_);
+    flush_();
+}
+
+template<typename Mutex>
+void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_pattern(const std::string &pattern)
+{
+    std::lock_guard<Mutex> lock(mutex_);
+    set_pattern_(pattern);
+}
+
+template<typename Mutex>
+void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter)
+{
+    std::lock_guard<Mutex> lock(mutex_);
+    set_formatter_(std::move(sink_formatter));
+}
+
+template<typename Mutex>
+void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_pattern_(const std::string &pattern)
+{
+    set_formatter_(details::make_unique<spdlog::pattern_formatter>(pattern));
+}
+
+template<typename Mutex>
+void SPDLOG_INLINE spdlog::sinks::base_sink<Mutex>::set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter)
+{
+    formatter_ = std::move(sink_formatter);
+}

Libs/spdlog/sinks/base_sink.h

@@ -0,0 +1,52 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+//
+// base sink templated over a mutex (either dummy or real)
+// concrete implementation should override the sink_it_() and flush_()  methods.
+// locking is taken care of in this class - no locking needed by the
+// implementers..
+//
+
+#include <spdlog/common.h>
+#include <spdlog/details/log_msg.h>
+#include <spdlog/sinks/sink.h>
+
+namespace spdlog {
+namespace sinks {
+template<typename Mutex>
+class base_sink : public sink
+{
+public:
+    base_sink();
+    explicit base_sink(std::unique_ptr<spdlog::formatter> formatter);
+    ~base_sink() override = default;
+
+    base_sink(const base_sink &) = delete;
+    base_sink(base_sink &&) = delete;
+
+    base_sink &operator=(const base_sink &) = delete;
+    base_sink &operator=(base_sink &&) = delete;
+
+    void log(const details::log_msg &msg) final;
+    void flush() final;
+    void set_pattern(const std::string &pattern) final;
+    void set_formatter(std::unique_ptr<spdlog::formatter> sink_formatter) final;
+
+protected:
+    // sink formatter
+    std::unique_ptr<spdlog::formatter> formatter_;
+    mutable Mutex mutex_;
+
+    virtual void sink_it_(const details::log_msg &msg) = 0;
+    virtual void flush_() = 0;
+    virtual void set_pattern_(const std::string &pattern);
+    virtual void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter);
+};
+} // namespace sinks
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "base_sink-inl.h"
+#endif

Libs/spdlog/sinks/basic_file_sink-inl.h

@@ -0,0 +1,43 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#ifndef SPDLOG_HEADER_ONLY
+#    include <spdlog/sinks/basic_file_sink.h>
+#endif
+
+#include <spdlog/common.h>
+#include <spdlog/details/os.h>
+
+namespace spdlog {
+namespace sinks {
+
+template<typename Mutex>
+SPDLOG_INLINE basic_file_sink<Mutex>::basic_file_sink(const filename_t &filename, bool truncate)
+{
+    file_helper_.open(filename, truncate);
+}
+
+template<typename Mutex>
+SPDLOG_INLINE const filename_t &basic_file_sink<Mutex>::filename() const
+{
+    return file_helper_.filename();
+}
+
+template<typename Mutex>
+SPDLOG_INLINE void basic_file_sink<Mutex>::sink_it_(const details::log_msg &msg)
+{
+    memory_buf_t formatted;
+    base_sink<Mutex>::formatter_->format(msg, formatted);
+    file_helper_.write(formatted);
+}
+
+template<typename Mutex>
+SPDLOG_INLINE void basic_file_sink<Mutex>::flush_()
+{
+    file_helper_.flush();
+}
+
+} // namespace sinks
+} // namespace spdlog

Libs/spdlog/sinks/basic_file_sink.h

@@ -0,0 +1,58 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/details/file_helper.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/synchronous_factory.h>
+
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+namespace sinks {
+/*
+ * Trivial file sink with single file as target
+ */
+template<typename Mutex>
+class basic_file_sink final : public base_sink<Mutex>
+{
+public:
+    explicit basic_file_sink(const filename_t &filename, bool truncate = false);
+    const filename_t &filename() const;
+
+protected:
+    void sink_it_(const details::log_msg &msg) override;
+    void flush_() override;
+
+private:
+    details::file_helper file_helper_;
+};
+
+using basic_file_sink_mt = basic_file_sink<std::mutex>;
+using basic_file_sink_st = basic_file_sink<details::null_mutex>;
+
+} // namespace sinks
+
+//
+// factory functions
+//
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> basic_logger_mt(const std::string &logger_name, const filename_t &filename, bool truncate = false)
+{
+    return Factory::template create<sinks::basic_file_sink_mt>(logger_name, filename, truncate);
+}
+
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> basic_logger_st(const std::string &logger_name, const filename_t &filename, bool truncate = false)
+{
+    return Factory::template create<sinks::basic_file_sink_st>(logger_name, filename, truncate);
+}
+
+} // namespace spdlog
+
+#ifdef SPDLOG_HEADER_ONLY
+#    include "basic_file_sink-inl.h"
+#endif

Libs/spdlog/sinks/daily_file_sink.h

@@ -0,0 +1,242 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include <spdlog/common.h>
+#include <spdlog/details/file_helper.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/fmt/fmt.h>
+#include <spdlog/fmt/chrono.h>
+#include <spdlog/sinks/base_sink.h>
+#include <spdlog/details/os.h>
+#include <spdlog/details/circular_q.h>
+#include <spdlog/details/synchronous_factory.h>
+
+#include <chrono>
+#include <cstdio>
+#include <ctime>
+#include <mutex>
+#include <string>
+
+namespace spdlog {
+namespace sinks {
+
+/*
+ * Generator of daily log file names in format basename.YYYY-MM-DD.ext
+ */
+struct daily_filename_calculator
+{
+    // Create filename for the form basename.YYYY-MM-DD
+    static filename_t calc_filename(const filename_t &filename, const tm &now_tm)
+    {
+        filename_t basename, ext;
+        std::tie(basename, ext) = details::file_helper::split_by_extension(filename);
+        return fmt::format(
+            SPDLOG_FILENAME_T("{}_{:04d}-{:02d}-{:02d}{}"), basename, now_tm.tm_year + 1900, now_tm.tm_mon + 1, now_tm.tm_mday, ext);
+    }
+};
+
+/*
+ * Generator of daily log file names with strftime format.
+ * Usages:
+ *    auto sink =  std::make_shared<spdlog::sinks::daily_file_format_sink_mt>("myapp-%Y-%m-%d:%H:%M:%S.log", hour, minute);"
+ *    auto logger = spdlog::daily_logger_format_mt("loggername, "myapp-%Y-%m-%d:%X.log", hour,  minute)"
+ *
+ */
+struct daily_filename_format_calculator
+{
+    static filename_t calc_filename(const filename_t &filename, const tm &now_tm)
+    {
+        // generate fmt datetime format string, e.g. {:%Y-%m-%d}.
+        filename_t fmt_filename = fmt::format(SPDLOG_FILENAME_T("{{:{}}}"), filename);
+#if defined(_MSC_VER) && defined(SPDLOG_WCHAR_FILENAMES) // for some reason msvc doesnt allow fmt::runtime(..) with wchar here
+        return fmt::format(fmt_filename, now_tm);
+#else
+        return fmt::format(SPDLOG_FMT_RUNTIME(fmt_filename), now_tm);
+#endif
+    }
+};
+
+/*
+ * Rotating file sink based on date.
+ * If truncate != false , the created file will be truncated.
+ * If max_files > 0, retain only the last max_files and delete previous.
+ */
+template<typename Mutex, typename FileNameCalc = daily_filename_calculator>
+class daily_file_sink final : public base_sink<Mutex>
+{
+public:
+    // create daily file sink which rotates on given time
+    daily_file_sink(filename_t base_filename, int rotation_hour, int rotation_minute, bool truncate = false, uint16_t max_files = 0)
+        : base_filename_(std::move(base_filename))
+        , rotation_h_(rotation_hour)
+        , rotation_m_(rotation_minute)
+        , truncate_(truncate)
+        , max_files_(max_files)
+        , filenames_q_()
+    {
+        if (rotation_hour < 0 || rotation_hour > 23 || rotation_minute < 0 || rotation_minute > 59)
+        {
+            throw_spdlog_ex("daily_file_sink: Invalid rotation time in ctor");
+        }
+
+        auto now = log_clock::now();
+        auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(now));
+        file_helper_.open(filename, truncate_);
+        rotation_tp_ = next_rotation_tp_();
+
+        if (max_files_ > 0)
+        {
+            init_filenames_q_();
+        }
+    }
+
+    filename_t filename()
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        return file_helper_.filename();
+    }
+
+protected:
+    void sink_it_(const details::log_msg &msg) override
+    {
+        auto time = msg.time;
+        bool should_rotate = time >= rotation_tp_;
+        if (should_rotate)
+        {
+            auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(time));
+            file_helper_.open(filename, truncate_);
+            rotation_tp_ = next_rotation_tp_();
+        }
+        memory_buf_t formatted;
+        base_sink<Mutex>::formatter_->format(msg, formatted);
+        file_helper_.write(formatted);
+
+        // Do the cleaning only at the end because it might throw on failure.
+        if (should_rotate && max_files_ > 0)
+        {
+            delete_old_();
+        }
+    }
+
+    void flush_() override
+    {
+        file_helper_.flush();
+    }
+
+private:
+    void init_filenames_q_()
+    {
+        using details::os::path_exists;
+
+        filenames_q_ = details::circular_q<filename_t>(static_cast<size_t>(max_files_));
+        std::vector<filename_t> filenames;
+        auto now = log_clock::now();
+        while (filenames.size() < max_files_)
+        {
+            auto filename = FileNameCalc::calc_filename(base_filename_, now_tm(now));
+            if (!path_exists(filename))
+            {
+                break;
+            }
+            filenames.emplace_back(filename);
+            now -= std::chrono::hours(24);
+        }
+        for (auto iter = filenames.rbegin(); iter != filenames.rend(); ++iter)
+        {
+            filenames_q_.push_back(std::move(*iter));
+        }
+    }
+
+    tm now_tm(log_clock::time_point tp)
+    {
+        time_t tnow = log_clock::to_time_t(tp);
+        return spdlog::details::os::localtime(tnow);
+    }
+
+    log_clock::time_point next_rotation_tp_()
+    {
+        auto now = log_clock::now();
+        tm date = now_tm(now);
+        date.tm_hour = rotation_h_;
+        date.tm_min = rotation_m_;
+        date.tm_sec = 0;
+        auto rotation_time = log_clock::from_time_t(std::mktime(&date));
+        if (rotation_time > now)
+        {
+            return rotation_time;
+        }
+        return {rotation_time + std::chrono::hours(24)};
+    }
+
+    // Delete the file N rotations ago.
+    // Throw spdlog_ex on failure to delete the old file.
+    void delete_old_()
+    {
+        using details::os::filename_to_str;
+        using details::os::remove_if_exists;
+
+        filename_t current_file = file_helper_.filename();
+        if (filenames_q_.full())
+        {
+            auto old_filename = std::move(filenames_q_.front());
+            filenames_q_.pop_front();
+            bool ok = remove_if_exists(old_filename) == 0;
+            if (!ok)
+            {
+                filenames_q_.push_back(std::move(current_file));
+                throw_spdlog_ex("Failed removing daily file " + filename_to_str(old_filename), errno);
+            }
+        }
+        filenames_q_.push_back(std::move(current_file));
+    }
+
+    filename_t base_filename_;
+    int rotation_h_;
+    int rotation_m_;
+    log_clock::time_point rotation_tp_;
+    details::file_helper file_helper_;
+    bool truncate_;
+    uint16_t max_files_;
+    details::circular_q<filename_t> filenames_q_;
+};
+
+using daily_file_sink_mt = daily_file_sink<std::mutex>;
+using daily_file_sink_st = daily_file_sink<details::null_mutex>;
+using daily_file_format_sink_mt = daily_file_sink<std::mutex, daily_filename_format_calculator>;
+using daily_file_format_sink_st = daily_file_sink<details::null_mutex, daily_filename_format_calculator>;
+
+} // namespace sinks
+
+//
+// factory functions
+//
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> daily_logger_mt(
+    const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
+{
+    return Factory::template create<sinks::daily_file_sink_mt>(logger_name, filename, hour, minute, truncate, max_files);
+}
+
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> daily_logger_format_mt(
+    const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
+{
+    return Factory::template create<sinks::daily_file_format_sink_mt>(logger_name, filename, hour, minute, truncate, max_files);
+}
+
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> daily_logger_st(
+    const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
+{
+    return Factory::template create<sinks::daily_file_sink_st>(logger_name, filename, hour, minute, truncate, max_files);
+}
+
+template<typename Factory = spdlog::synchronous_factory>
+inline std::shared_ptr<logger> daily_logger_format_st(
+    const std::string &logger_name, const filename_t &filename, int hour = 0, int minute = 0, bool truncate = false, uint16_t max_files = 0)
+{
+    return Factory::template create<sinks::daily_file_format_sink_st>(logger_name, filename, hour, minute, truncate, max_files);
+}
+} // namespace spdlog

Libs/spdlog/sinks/dist_sink.h

@@ -0,0 +1,97 @@
+// Copyright(c) 2015-present, Gabi Melman & spdlog contributors.
+// Distributed under the MIT License (http://opensource.org/licenses/MIT)
+
+#pragma once
+
+#include "base_sink.h"
+#include <spdlog/details/log_msg.h>
+#include <spdlog/details/null_mutex.h>
+#include <spdlog/pattern_formatter.h>
+
+#include <algorithm>
+#include <memory>
+#include <mutex>
+#include <vector>
+
+// Distribution sink (mux). Stores a vector of sinks which get called when log
+// is called
+
+namespace spdlog {
+namespace sinks {
+
+template<typename Mutex>
+class dist_sink : public base_sink<Mutex>
+{
+public:
+    dist_sink() = default;
+    explicit dist_sink(std::vector<std::shared_ptr<sink>> sinks)
+        : sinks_(sinks)
+    {}
+
+    dist_sink(const dist_sink &) = delete;
+    dist_sink &operator=(const dist_sink &) = delete;
+
+    void add_sink(std::shared_ptr<sink> sink)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        sinks_.push_back(sink);
+    }
+
+    void remove_sink(std::shared_ptr<sink> sink)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        sinks_.erase(std::remove(sinks_.begin(), sinks_.end(), sink), sinks_.end());
+    }
+
+    void set_sinks(std::vector<std::shared_ptr<sink>> sinks)
+    {
+        std::lock_guard<Mutex> lock(base_sink<Mutex>::mutex_);
+        sinks_ = std::move(sinks);
+    }
+
+    std::vector<std::shared_ptr<sink>> &sinks()
+    {
+        return sinks_;
+    }
+
+protected:
+    void sink_it_(const details::log_msg &msg) override
+    {
+        for (auto &sink : sinks_)
+        {
+            if (sink->should_log(msg.level))
+            {
+                sink->log(msg);
+            }
+        }
+    }
+
+    void flush_() override
+    {
+        for (auto &sink : sinks_)
+        {
+            sink->flush();
+        }
+    }
+
+    void set_pattern_(const std::string &pattern) override
+    {
+        set_formatter_(details::make_unique<spdlog::pattern_formatter>(pattern));
+    }
+
+    void set_formatter_(std::unique_ptr<spdlog::formatter> sink_formatter) override
+    {
+        base_sink<Mutex>::formatter_ = std::move(sink_formatter);
+        for (auto &sink : sinks_)
+        {
+            sink->set_formatter(base_sink<Mutex>::formatter_->clone());
+        }
+    }
+    std::vector<std::shared_ptr<sink>> sinks_;
+};
+
+using dist_sink_mt = dist_sink<std::mutex>;
+using dist_sink_st = dist_sink<details::null_mutex>;
+
+} // namespace sinks
+} // namespace spdlog