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3b6a3a5019
don't track .user files except for cnq3 and cnq3-server disabled FPS hack disabled FPS hack, part 2
1026 lines
18 KiB
C
1026 lines
18 KiB
C
/*
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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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// q_shared.c -- stateless support routines that are included in each code dll
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#include "q_shared.h"
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#if defined(_DEBUG) && defined(_MSC_VER)
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#include "../win32/windows.h"
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#endif
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#if defined(__cplusplus)
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extern "C" {
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#endif
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float Com_Clamp( float min, float max, float value )
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{
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if ( value < min ) {
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return min;
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}
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if ( value > max ) {
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return max;
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}
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return value;
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}
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int Com_ClampInt( int min, int max, int value )
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{
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if ( value < min ) {
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return min;
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}
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if ( value > max ) {
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return max;
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}
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return value;
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}
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const char* COM_SkipPath( const char* pathname )
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{
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const char* last = pathname;
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while (*pathname)
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{
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if (*pathname == '/')
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last = pathname+1;
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++pathname;
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}
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return last;
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}
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void COM_StripExtension( const char* in, char* out, int destsize )
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{
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char* p;
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Q_strncpyz( out, in, destsize );
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p = out + strlen(out) - 1;
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while (p-- > out) {
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if (*p == '.') {
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*p = 0;
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return; // nuke it and bail
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}
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if (*p == '/') {
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return; // no extension
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}
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}
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}
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// if path doesn't have a .EXT, append ext (which should include the .)
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void COM_DefaultExtension( char* path, int maxSize, const char* ext )
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{
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char oldPath[MAX_QPATH];
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const char* src = path + strlen(path) - 1;
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while (*src != '/' && src != path) {
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if (*src == '.') {
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return; // already has an extension
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}
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--src;
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}
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Q_strncpyz( oldPath, path, sizeof( oldPath ) );
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Com_sprintf( path, maxSize, "%s%s", oldPath, ext );
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}
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/*
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============================================================================
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BYTE ORDER FUNCTIONS
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these don't belong in here and should never be used by a VM
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============================================================================
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*/
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#ifndef Q3_VM
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short ShortSwap (short l)
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{
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byte b1,b2;
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b1 = l&255;
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b2 = (l>>8)&255;
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return (b1<<8) + b2;
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}
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int LongSwap (int l)
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{
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byte b1,b2,b3,b4;
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b1 = l&255;
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b2 = (l>>8)&255;
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b3 = (l>>16)&255;
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b4 = (l>>24)&255;
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return ((int)b1<<24) + ((int)b2<<16) + ((int)b3<<8) + b4;
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}
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typedef union {
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float f;
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unsigned int i;
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} _FloatByteUnion;
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float FloatSwap (const float *f) {
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_FloatByteUnion out;
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out.f = *f;
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out.i = LongSwap(out.i);
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return out.f;
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}
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#endif
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/*
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============================================================================
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PARSING
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============================================================================
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*/
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static char com_token[MAX_TOKEN_CHARS];
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const char* COM_Parse( const char** data_p )
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{
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return COM_ParseExt( data_p, qtrue );
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}
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static const char* SkipWhitespace( const char* data, qbool* hasNewLines )
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{
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int c;
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while( (c = *data) <= ' ') {
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if( !c ) {
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return NULL;
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}
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if( c == '\n' ) {
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*hasNewLines = qtrue;
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}
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data++;
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}
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return data;
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}
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int COM_Compress( char* p )
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{
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int c;
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char* in = p;
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char* out = p;
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int wschar = 0;
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assert(in);
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if (!in)
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return 0;
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while (c = *in++) {
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// skip double slash comments
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if ( c == '/' && *in == '/' ) {
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while (*in && *in != '\n')
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++in;
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// skip /* */ comments (note: id code fails to handle "/*/" properly so we have to get it wrong too)
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} else if ( c == '/' && *in == '*' ) {
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while (*in && (*in != '*' || in[1] != '/'))
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++in;
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if ( *in )
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in += 2;
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// record when we hit a newline
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} else if ( c == '\n' || c == '\r' ) {
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wschar = '\n';
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// record when we hit whitespace
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} else if ( c == ' ' || c == '\t' ) {
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if (!wschar)
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wschar = ' ';
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// an actual token
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} else {
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// emit any pending separator
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if (wschar) {
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*out++ = wschar;
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wschar = 0;
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}
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// copy quoted strings unmolested
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if (c == '"') {
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*out++ = c;
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do {
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*out++ = *in++;
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} while ((c = *in) && (c != '"'));
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++in;
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}
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*out++ = c;
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}
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}
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*out = 0;
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return out - p;
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}
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// parse a token out of a string - will never return NULL, just empty strings
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// if "allowLineBreaks" is true then an empty string will be returned if the next token is a newline
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const char* COM_ParseExt( const char** data_p, qbool allowLineBreaks )
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{
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int c = 0, len = 0;
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qbool hasNewLines = qfalse;
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const char* data = *data_p;
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com_token[0] = 0;
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// make sure incoming data is valid
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if ( !data )
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{
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*data_p = NULL;
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return com_token;
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}
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while ( 1 )
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{
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// skip whitespace
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data = SkipWhitespace( data, &hasNewLines );
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if ( !data )
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{
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*data_p = NULL;
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return com_token;
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}
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if ( hasNewLines && !allowLineBreaks )
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{
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*data_p = data;
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return com_token;
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}
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c = *data;
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// skip double slash comments
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if ( c == '/' && data[1] == '/' )
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{
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data += 2;
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while (*data && *data != '\n') {
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data++;
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}
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}
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// skip /* */ comments
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else if ( c=='/' && data[1] == '*' )
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{
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data += 2;
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while ( *data && ( *data != '*' || data[1] != '/' ) )
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{
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data++;
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}
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if ( *data )
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{
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data += 2;
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}
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}
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else
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{
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break;
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}
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}
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// handle quoted strings
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if (c == '\"')
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{
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data++;
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while (1)
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{
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c = *data++;
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if (c=='\"' || !c)
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{
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com_token[len] = 0;
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*data_p = ( char * ) data;
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return com_token;
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}
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if (len < MAX_TOKEN_CHARS - 1)
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{
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com_token[len] = c;
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len++;
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}
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}
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}
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// parse a regular word
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do
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{
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if (len < MAX_TOKEN_CHARS - 1)
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{
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com_token[len] = c;
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len++;
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}
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data++;
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c = *data;
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} while (c > 32);
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com_token[len] = 0;
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*data_p = data;
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return com_token;
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}
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/*
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The next token should be an open brace.
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Skips until a matching close brace is found.
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Internal brace depths are properly skipped.
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*/
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void SkipBracedSection( const char** data )
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{
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int depth = 0;
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const char* token;
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do {
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token = COM_ParseExt( data, qtrue );
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if( token[1] == 0 ) {
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if( token[0] == '{' ) {
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depth++;
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}
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else if( token[0] == '}' ) {
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depth--;
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}
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}
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} while (depth && *data);
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}
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void SkipRestOfLine( const char** data )
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{
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int c;
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const char* p = *data;
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while ( (c = *p++) && (c != '\n') )
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;
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*data = p;
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}
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/*
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============================================================================
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LIBRARY REPLACEMENT FUNCTIONS
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============================================================================
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*/
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int Q_isprint( int c )
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{
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if ( c >= 0x20 && c <= 0x7E )
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return ( 1 );
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return ( 0 );
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}
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int Q_islower( int c )
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{
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if (c >= 'a' && c <= 'z')
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return ( 1 );
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return ( 0 );
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}
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int Q_isupper( int c )
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{
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if (c >= 'A' && c <= 'Z')
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return ( 1 );
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return ( 0 );
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}
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int Q_isalpha( int c )
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{
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if ((c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z'))
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return ( 1 );
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return ( 0 );
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}
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char* Q_strrchr( const char* string, int c )
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{
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char cc = c;
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char *s;
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char *sp=(char *)0;
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s = (char*)string;
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while (*s)
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{
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if (*s == cc)
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sp = s;
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s++;
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}
|
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if (cc == 0)
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sp = s;
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return sp;
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}
|
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|
|
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const char *Q_stristr( const char *s, const char *find )
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|
{
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|
char c;
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if ((c = *find++) != 0) {
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const size_t len = strlen(find);
|
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|
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if (c >= 'a' && c <= 'z')
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c -= ('a' - 'A');
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do {
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char sc;
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do {
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if ((sc = *s++) == 0)
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return NULL;
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if (sc >= 'a' && sc <= 'z')
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sc -= ('a' - 'A');
|
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} while (sc != c);
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} while (Q_stricmpn(s, find, len) != 0);
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s--;
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}
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|
return s;
|
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}
|
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|
|
|
|
// safe strncpy that ensures a trailing zero
|
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|
|
void Q_strncpyz( char *dest, const char *src, int destsize )
|
|
{
|
|
if ( !dest ) {
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Com_Error( ERR_FATAL, "Q_strncpyz: NULL dest" );
|
|
}
|
|
if ( !src ) {
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Com_Error( ERR_FATAL, "Q_strncpyz: NULL src" );
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}
|
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if ( destsize < 1 ) {
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Com_Error( ERR_FATAL,"Q_strncpyz: destsize < 1" );
|
|
}
|
|
|
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strncpy( dest, src, destsize-1 );
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dest[destsize-1] = 0;
|
|
}
|
|
|
|
int Q_stricmpn( const char *s1, const char *s2, int n )
|
|
{
|
|
int c1, c2;
|
|
|
|
do {
|
|
c1 = *s1++;
|
|
c2 = *s2++;
|
|
|
|
if (!n--) {
|
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return 0; // strings are equal until end point
|
|
}
|
|
|
|
if (c1 != c2) {
|
|
if (c1 >= 'a' && c1 <= 'z') {
|
|
c1 -= ('a' - 'A');
|
|
}
|
|
if (c2 >= 'a' && c2 <= 'z') {
|
|
c2 -= ('a' - 'A');
|
|
}
|
|
if (c1 != c2) {
|
|
return c1 < c2 ? -1 : 1;
|
|
}
|
|
}
|
|
} while (c1);
|
|
|
|
return 0; // strings are equal
|
|
}
|
|
|
|
int Q_strncmp( const char *s1, const char *s2, int n )
|
|
{
|
|
int c1, c2;
|
|
|
|
do {
|
|
c1 = *s1++;
|
|
c2 = *s2++;
|
|
|
|
if (!n--) {
|
|
return 0; // strings are equal until end point
|
|
}
|
|
|
|
if (c1 != c2) {
|
|
return c1 < c2 ? -1 : 1;
|
|
}
|
|
} while (c1);
|
|
|
|
return 0; // strings are equal
|
|
}
|
|
|
|
int Q_stricmp( const char *s1, const char *s2 )
|
|
{
|
|
return (s1 && s2) ? Q_stricmpn (s1, s2, 99999) : -1;
|
|
}
|
|
|
|
|
|
char *Q_strlwr( char *s1 )
|
|
{
|
|
char* s = s1;
|
|
while ( *s ) {
|
|
*s = tolower(*s);
|
|
s++;
|
|
}
|
|
return s1;
|
|
}
|
|
|
|
char *Q_strupr( char *s1 )
|
|
{
|
|
char* s = s1;
|
|
while ( *s ) {
|
|
*s = toupper(*s);
|
|
s++;
|
|
}
|
|
return s1;
|
|
}
|
|
|
|
|
|
// never goes past bounds or leaves without a terminating 0
|
|
void Q_strcat( char *dest, int size, const char *src )
|
|
{
|
|
int l1;
|
|
|
|
l1 = strlen( dest );
|
|
if ( l1 >= size ) {
|
|
Com_Error( ERR_FATAL, "Q_strcat: already overflowed" );
|
|
}
|
|
Q_strncpyz( dest + l1, src, size - l1 );
|
|
}
|
|
|
|
|
|
int Q_PrintStrlen( const char *string )
|
|
{
|
|
int len = 0;
|
|
const char* p = string;
|
|
|
|
if (!p)
|
|
return 0;
|
|
|
|
while ( *p ) {
|
|
if( Q_IsColorString( p ) ) {
|
|
p += 2;
|
|
continue;
|
|
}
|
|
p++;
|
|
len++;
|
|
}
|
|
|
|
return len;
|
|
}
|
|
|
|
|
|
int Q_PrintStroff( const char *string, int charOffset )
|
|
{
|
|
int len = 0;
|
|
const char* p = string;
|
|
|
|
if (!p)
|
|
return 0;
|
|
|
|
while ( *p && len < charOffset ) {
|
|
if( Q_IsColorString( p ) ) {
|
|
p += 2;
|
|
continue;
|
|
}
|
|
p++;
|
|
len++;
|
|
}
|
|
|
|
return p - string;
|
|
}
|
|
|
|
|
|
char *Q_CleanStr( char *string ) {
|
|
char* d;
|
|
char* s;
|
|
int c;
|
|
|
|
s = string;
|
|
d = string;
|
|
while ((c = *s) != 0 ) {
|
|
if ( Q_IsColorString( s ) ) {
|
|
s++;
|
|
}
|
|
else if ( c >= 0x20 && c <= 0x7E ) {
|
|
*d++ = c;
|
|
}
|
|
s++;
|
|
}
|
|
*d = '\0';
|
|
|
|
return string;
|
|
}
|
|
|
|
|
|
void QDECL Com_sprintf( char *dest, int size, PRINTF_FORMAT_STRING const char *fmt, ...) {
|
|
int len;
|
|
va_list argptr;
|
|
char bigbuffer[32000]; // big, but small enough to fit in PPC stack
|
|
|
|
va_start (argptr,fmt);
|
|
len = vsprintf (bigbuffer,fmt,argptr);
|
|
va_end (argptr);
|
|
if ( len >= sizeof( bigbuffer ) ) {
|
|
Com_Error( ERR_FATAL, "Com_sprintf: overflowed bigbuffer" );
|
|
}
|
|
// don't spam overflow warnings to end-users, especially since it's a perfectly normal
|
|
// thing to happen with command and cvar auto-completion
|
|
#if defined(_DEBUG) || defined(DEBUG)
|
|
if (len >= size) {
|
|
Com_Printf ("Com_sprintf: overflow of %i in %i\n", len, size);
|
|
}
|
|
#endif
|
|
Q_strncpyz (dest, bigbuffer, size );
|
|
}
|
|
|
|
|
|
/*
|
|
============
|
|
does a varargs printf into a temp buffer, so I don't need to have
|
|
varargs versions of all text functions.
|
|
FIXME: make this buffer size safe someday
|
|
============
|
|
*/
|
|
const char* QDECL va( PRINTF_FORMAT_STRING const char* format, ... )
|
|
{
|
|
static char string[64][32000]; // in case va is called by nested functions
|
|
static int index = 0;
|
|
char* buf = string[index++ & 63];
|
|
va_list argptr;
|
|
|
|
va_start( argptr, format );
|
|
vsprintf( buf, format, argptr );
|
|
va_end( argptr );
|
|
|
|
return buf;
|
|
}
|
|
|
|
|
|
const char* v3tos( const vec3_t v )
|
|
{
|
|
return va( "%g, %g, %g", v[0], v[1], v[2] );
|
|
}
|
|
|
|
|
|
const char* v4tos( const vec4_t v )
|
|
{
|
|
return va( "%g, %g, %g, %g", v[0], v[1], v[2], v[3] );
|
|
}
|
|
|
|
|
|
/*
|
|
=====================================================================
|
|
|
|
INFO STRINGS
|
|
|
|
=====================================================================
|
|
*/
|
|
|
|
|
|
// some characters are illegal in info strings because they can mess up the server's parsing
|
|
|
|
qbool Info_Validate( const char* s )
|
|
{
|
|
if ( strchr( s, '\"' ) )
|
|
return qfalse;
|
|
if ( strchr( s, ';' ) )
|
|
return qfalse;
|
|
return qtrue;
|
|
}
|
|
|
|
/*
|
|
===============
|
|
Info_ValueForKey
|
|
|
|
Searches the string for the given key and returns the associated value, or an empty string.
|
|
FIXME: overflow check?
|
|
===============
|
|
*/
|
|
const char* Info_ValueForKey( const char *s, const char *key )
|
|
{
|
|
char pkey[BIG_INFO_KEY];
|
|
static char value[2][BIG_INFO_VALUE]; // use two buffers so compares
|
|
// work without stomping on each other
|
|
static int valueindex = 0;
|
|
char *o;
|
|
|
|
if ( !s || !key ) {
|
|
return "";
|
|
}
|
|
|
|
if ( strlen( s ) >= BIG_INFO_STRING ) {
|
|
Com_Error( ERR_DROP, "Info_ValueForKey: oversize infostring" );
|
|
}
|
|
|
|
valueindex ^= 1;
|
|
if (*s == '\\')
|
|
s++;
|
|
while (1)
|
|
{
|
|
o = pkey;
|
|
while (*s != '\\')
|
|
{
|
|
if (!*s)
|
|
return "";
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
s++;
|
|
|
|
o = value[valueindex];
|
|
|
|
while (*s != '\\' && *s)
|
|
{
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
|
|
if (!Q_stricmp(key, pkey))
|
|
return value[valueindex];
|
|
|
|
if (!*s)
|
|
break;
|
|
s++;
|
|
}
|
|
|
|
return "";
|
|
}
|
|
|
|
|
|
/*
|
|
===================
|
|
Info_NextPair
|
|
|
|
Used to iterate through all the key/value pairs in an info string
|
|
===================
|
|
*/
|
|
void Info_NextPair( const char **head, char *key, char *value ) {
|
|
char *o;
|
|
const char *s;
|
|
|
|
s = *head;
|
|
|
|
if ( *s == '\\' ) {
|
|
s++;
|
|
}
|
|
key[0] = 0;
|
|
value[0] = 0;
|
|
|
|
o = key;
|
|
while ( *s != '\\' ) {
|
|
if ( !*s ) {
|
|
*o = 0;
|
|
*head = s;
|
|
return;
|
|
}
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
s++;
|
|
|
|
o = value;
|
|
while ( *s != '\\' && *s ) {
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
|
|
*head = s;
|
|
}
|
|
|
|
|
|
/*
|
|
===================
|
|
Info_RemoveKey
|
|
===================
|
|
*/
|
|
void Info_RemoveKey( char *s, const char *key ) {
|
|
char *start;
|
|
char pkey[MAX_INFO_KEY];
|
|
char value[MAX_INFO_VALUE];
|
|
char *o;
|
|
|
|
if ( strlen( s ) >= MAX_INFO_STRING ) {
|
|
Com_Error( ERR_DROP, "Info_RemoveKey: oversize infostring" );
|
|
}
|
|
|
|
if (strchr (key, '\\')) {
|
|
return;
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
start = s;
|
|
if (*s == '\\')
|
|
s++;
|
|
o = pkey;
|
|
while (*s != '\\')
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
s++;
|
|
|
|
o = value;
|
|
while (*s != '\\' && *s)
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
|
|
if (!strcmp (key, pkey) )
|
|
{
|
|
strcpy (start, s); // remove this part
|
|
return;
|
|
}
|
|
|
|
if (!*s)
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
/*
|
|
===================
|
|
Info_RemoveKey_Big
|
|
===================
|
|
*/
|
|
void Info_RemoveKey_Big( char *s, const char *key ) {
|
|
char *start;
|
|
char pkey[BIG_INFO_KEY];
|
|
char value[BIG_INFO_VALUE];
|
|
char *o;
|
|
|
|
if ( strlen( s ) >= BIG_INFO_STRING ) {
|
|
Com_Error( ERR_DROP, "Info_RemoveKey_Big: oversize infostring" );
|
|
}
|
|
|
|
if (strchr (key, '\\')) {
|
|
return;
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
start = s;
|
|
if (*s == '\\')
|
|
s++;
|
|
o = pkey;
|
|
while (*s != '\\')
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
s++;
|
|
|
|
o = value;
|
|
while (*s != '\\' && *s)
|
|
{
|
|
if (!*s)
|
|
return;
|
|
*o++ = *s++;
|
|
}
|
|
*o = 0;
|
|
|
|
if (!strcmp (key, pkey) )
|
|
{
|
|
strcpy (start, s); // remove this part
|
|
return;
|
|
}
|
|
|
|
if (!*s)
|
|
return;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
// changes or adds a key/value pair
|
|
|
|
qbool Info_SetValueForKey( char* s, const char* key, const char* value )
|
|
{
|
|
char newi[MAX_INFO_STRING];
|
|
|
|
if ( strlen( s ) >= MAX_INFO_STRING ) {
|
|
Com_Error( ERR_DROP, "Info_SetValueForKey: oversize infostring" );
|
|
}
|
|
|
|
if (strchr(key, '\\') || strchr(value, '\\'))
|
|
{
|
|
Com_Printf( "Can't use keys or values with a \\\n" );
|
|
return qfalse;
|
|
}
|
|
|
|
if (strchr(key, ';') || strchr(value, ';'))
|
|
{
|
|
Com_Printf( "Can't use keys or values with a semicolon\n" );
|
|
return qfalse;
|
|
}
|
|
|
|
if (strchr(key, '\"') || strchr(value, '\"'))
|
|
{
|
|
Com_Printf( "Can't use keys or values with a \"\n" );
|
|
return qfalse;
|
|
}
|
|
|
|
Info_RemoveKey( s, key );
|
|
if (!value || !value[0])
|
|
return qtrue;
|
|
|
|
Com_sprintf( newi, sizeof(newi), "\\%s\\%s", key, value );
|
|
|
|
if (strlen(newi) + strlen(s) >= MAX_INFO_STRING)
|
|
{
|
|
Com_Printf( "Info string length exceeded\n" );
|
|
return qfalse;
|
|
}
|
|
|
|
strcat( s, newi );
|
|
return qtrue;
|
|
}
|
|
|
|
|
|
/*
|
|
==================
|
|
Info_SetValueForKey_Big
|
|
|
|
Changes or adds a key/value pair
|
|
==================
|
|
*/
|
|
void Info_SetValueForKey_Big( char *s, const char *key, const char *value ) {
|
|
char newi[BIG_INFO_STRING];
|
|
|
|
if ( strlen( s ) >= BIG_INFO_STRING ) {
|
|
Com_Error( ERR_DROP, "Info_SetValueForKey: oversize infostring" );
|
|
}
|
|
|
|
if (strchr (key, '\\') || strchr (value, '\\'))
|
|
{
|
|
Com_Printf ("Can't use keys or values with a \\\n");
|
|
return;
|
|
}
|
|
|
|
if (strchr (key, ';') || strchr (value, ';'))
|
|
{
|
|
Com_Printf ("Can't use keys or values with a semicolon\n");
|
|
return;
|
|
}
|
|
|
|
if (strchr (key, '\"') || strchr (value, '\"'))
|
|
{
|
|
Com_Printf ("Can't use keys or values with a \"\n");
|
|
return;
|
|
}
|
|
|
|
Info_RemoveKey_Big (s, key);
|
|
if (!value || !value[0])
|
|
return;
|
|
|
|
Com_sprintf (newi, sizeof(newi), "\\%s\\%s", key, value);
|
|
|
|
if (strlen(newi) + strlen(s) >= BIG_INFO_STRING)
|
|
{
|
|
Com_Printf ("BIG Info string length exceeded\n");
|
|
return;
|
|
}
|
|
|
|
strcat (s, newi);
|
|
}
|
|
|
|
|
|
#if defined(__cplusplus)
|
|
};
|
|
#endif
|