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ioquake3 porting
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247
code/botlib/l_script.h
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247
code/botlib/l_script.h
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/*
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===========================================================================
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Copyright (C) 1999-2005 Id Software, Inc.
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This file is part of Quake III Arena source code.
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Quake III Arena source code is free software; you can redistribute it
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and/or modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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Quake III Arena source code is distributed in the hope that it will be
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useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Quake III Arena source code; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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===========================================================================
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*/
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/*****************************************************************************
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* name: l_script.h
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*
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* desc: lexicographical parser
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*
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* $Archive: /source/code/botlib/l_script.h $
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*
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*****************************************************************************/
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//undef if binary numbers of the form 0b... or 0B... are not allowed
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#define BINARYNUMBERS
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//undef if not using the token.intvalue and token.floatvalue
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#define NUMBERVALUE
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//use dollar sign also as punctuation
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#define DOLLAR
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//maximum token length
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#define MAX_TOKEN 1024
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#if defined(BSPC) && !defined(QDECL)
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#define QDECL
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#endif
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//script flags
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#define SCFL_NOERRORS 0x0001
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#define SCFL_NOWARNINGS 0x0002
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#define SCFL_NOSTRINGWHITESPACES 0x0004
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#define SCFL_NOSTRINGESCAPECHARS 0x0008
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#define SCFL_PRIMITIVE 0x0010
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#define SCFL_NOBINARYNUMBERS 0x0020
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#define SCFL_NONUMBERVALUES 0x0040
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//token types
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#define TT_STRING 1 // string
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#define TT_LITERAL 2 // literal
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#define TT_NUMBER 3 // number
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#define TT_NAME 4 // name
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#define TT_PUNCTUATION 5 // punctuation
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//string sub type
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//---------------
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// the length of the string
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//literal sub type
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//----------------
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// the ASCII code of the literal
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//number sub type
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//---------------
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#define TT_DECIMAL 0x0008 // decimal number
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#define TT_HEX 0x0100 // hexadecimal number
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#define TT_OCTAL 0x0200 // octal number
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#ifdef BINARYNUMBERS
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#define TT_BINARY 0x0400 // binary number
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#endif //BINARYNUMBERS
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#define TT_FLOAT 0x0800 // floating point number
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#define TT_INTEGER 0x1000 // integer number
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#define TT_LONG 0x2000 // long number
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#define TT_UNSIGNED 0x4000 // unsigned number
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//punctuation sub type
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//--------------------
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#define P_RSHIFT_ASSIGN 1
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#define P_LSHIFT_ASSIGN 2
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#define P_PARMS 3
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#define P_PRECOMPMERGE 4
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#define P_LOGIC_AND 5
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#define P_LOGIC_OR 6
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#define P_LOGIC_GEQ 7
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#define P_LOGIC_LEQ 8
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#define P_LOGIC_EQ 9
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#define P_LOGIC_UNEQ 10
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#define P_MUL_ASSIGN 11
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#define P_DIV_ASSIGN 12
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#define P_MOD_ASSIGN 13
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#define P_ADD_ASSIGN 14
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#define P_SUB_ASSIGN 15
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#define P_INC 16
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#define P_DEC 17
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#define P_BIN_AND_ASSIGN 18
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#define P_BIN_OR_ASSIGN 19
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#define P_BIN_XOR_ASSIGN 20
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#define P_RSHIFT 21
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#define P_LSHIFT 22
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#define P_POINTERREF 23
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#define P_CPP1 24
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#define P_CPP2 25
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#define P_MUL 26
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#define P_DIV 27
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#define P_MOD 28
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#define P_ADD 29
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#define P_SUB 30
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#define P_ASSIGN 31
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#define P_BIN_AND 32
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#define P_BIN_OR 33
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#define P_BIN_XOR 34
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#define P_BIN_NOT 35
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#define P_LOGIC_NOT 36
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#define P_LOGIC_GREATER 37
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#define P_LOGIC_LESS 38
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#define P_REF 39
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#define P_COMMA 40
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#define P_SEMICOLON 41
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#define P_COLON 42
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#define P_QUESTIONMARK 43
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#define P_PARENTHESESOPEN 44
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#define P_PARENTHESESCLOSE 45
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#define P_BRACEOPEN 46
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#define P_BRACECLOSE 47
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#define P_SQBRACKETOPEN 48
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#define P_SQBRACKETCLOSE 49
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#define P_BACKSLASH 50
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#define P_PRECOMP 51
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#define P_DOLLAR 52
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//name sub type
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//-------------
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// the length of the name
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//punctuation
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typedef struct punctuation_s
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{
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char *p; //punctuation character(s)
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int n; //punctuation indication
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struct punctuation_s *next; //next punctuation
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} punctuation_t;
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//token
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typedef struct token_s
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{
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char string[MAX_TOKEN]; //available token
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int type; //last read token type
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int subtype; //last read token sub type
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#ifdef NUMBERVALUE
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unsigned long int intvalue; //integer value
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float floatvalue; //floating point value
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#endif //NUMBERVALUE
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char *whitespace_p; //start of white space before token
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char *endwhitespace_p; //start of white space before token
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int line; //line the token was on
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int linescrossed; //lines crossed in white space
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struct token_s *next; //next token in chain
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} token_t;
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//script file
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typedef struct script_s
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{
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char filename[1024]; //file name of the script
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char *buffer; //buffer containing the script
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char *script_p; //current pointer in the script
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char *end_p; //pointer to the end of the script
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char *lastscript_p; //script pointer before reading token
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char *whitespace_p; //begin of the white space
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char *endwhitespace_p; //end of the white space
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int length; //length of the script in bytes
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int line; //current line in script
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int lastline; //line before reading token
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int tokenavailable; //set by UnreadLastToken
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int flags; //several script flags
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punctuation_t *punctuations; //the punctuations used in the script
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punctuation_t **punctuationtable;
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token_t token; //available token
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struct script_s *next; //next script in a chain
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} script_t;
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//read a token from the script
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int PS_ReadToken(script_t *script, token_t *token);
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//expect a certain token
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int PS_ExpectTokenString(script_t *script, char *string);
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//expect a certain token type
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int PS_ExpectTokenType(script_t *script, int type, int subtype, token_t *token);
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//expect a token
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int PS_ExpectAnyToken(script_t *script, token_t *token);
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//returns true when the token is available
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int PS_CheckTokenString(script_t *script, char *string);
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//returns true and reads the token when a token with the given type is available
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int PS_CheckTokenType(script_t *script, int type, int subtype, token_t *token);
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//skip tokens until the given token string is read
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int PS_SkipUntilString(script_t *script, char *string);
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//unread the last token read from the script
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void PS_UnreadLastToken(script_t *script);
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//unread the given token
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void PS_UnreadToken(script_t *script, token_t *token);
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//returns the next character of the read white space, returns NULL if none
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char PS_NextWhiteSpaceChar(script_t *script);
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//remove any leading and trailing double quotes from the token
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void StripDoubleQuotes(char *string);
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//remove any leading and trailing single quotes from the token
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void StripSingleQuotes(char *string);
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//read a possible signed integer
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signed long int ReadSignedInt(script_t *script);
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//read a possible signed floating point number
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float ReadSignedFloat(script_t *script);
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//set an array with punctuations, NULL restores default C/C++ set
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void SetScriptPunctuations(script_t *script, punctuation_t *p);
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//set script flags
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void SetScriptFlags(script_t *script, int flags);
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//get script flags
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int GetScriptFlags(script_t *script);
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//reset a script
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void ResetScript(script_t *script);
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//returns true if at the end of the script
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int EndOfScript(script_t *script);
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//returns a pointer to the punctuation with the given number
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char *PunctuationFromNum(script_t *script, int num);
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//load a script from the given file at the given offset with the given length
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script_t *LoadScriptFile(const char *filename);
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//load a script from the given memory with the given length
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script_t *LoadScriptMemory(char *ptr, int length, char *name);
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//free a script
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void FreeScript(script_t *script);
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//set the base folder to load files from
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void PS_SetBaseFolder(char *path);
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//print a script error with filename and line number
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void QDECL ScriptError(script_t *script, char *str, ...) __attribute__ ((format (printf, 2, 3)));
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//print a script warning with filename and line number
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void QDECL ScriptWarning(script_t *script, char *str, ...) __attribute__ ((format (printf, 2, 3)));
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