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thirtyflightsofloving/extractfuncs/l_precomp.c

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/*
===========================================================================
Return to Castle Wolfenstein single player GPL Source Code
Copyright (C) 1999-2010 id Software LLC, a ZeniMax Media company.
This file is part of the Return to Castle Wolfenstein single player GPL Source Code (“RTCW SP Source Code”).
RTCW SP Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
RTCW SP Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with RTCW SP Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the RTCW SP Source Code is also subject to certain additional terms.
You should have received a copy of these additional terms immediately following the
terms and conditions of the GNU General Public License which accompanied the RTCW SP
Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms,
you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
/*****************************************************************************
* name: l_precomp.c
*
* desc: pre compiler
*
*
*****************************************************************************/
//Notes: fix: PC_StringizeTokens
#ifdef SCREWUP
#include <stdio.h>
#include <stdlib.h>
#include <limits.h>
#include <string.h>
#include <stdarg.h>
#include <time.h>
#include <math.h>
#include "l_memory.h"
#include "l_script.h"
#include "l_precomp.h"
#include "l_log.h"
#ifdef _WIN32
#include <windows.h>
#endif
typedef enum {qfalse, qtrue} qboolean;
extern void Error( char *error, ... );
// Ridah, ripped from q_shared.c
/*
=============
Q_strncpyz
Safe strncpy that ensures a trailing zero
=============
*/
void Q_strncpyz (char *dest, size_t destSize, const char *src)
{
if ( !src ) {
Error( "Q_strncpyz: NULL src" );
}
if ( destSize < 1 ) {
Error( "Q_strncpyz: destsize < 1" );
}
strncpy (dest, src, destSize - 1);
dest[destSize - 1] = 0;
}
/*
=================
Com_sprintf
=================
*/
void Com_sprintf (char *dest, int size, 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 );
len = Q_vsnprintf (bigbuffer, sizeof(bigbuffer), fmt, argptr);
va_end( argptr );
if ( len >= sizeof( bigbuffer ) )
{
Error( "Com_sprintf: overflowed bigbuffer" );
}
if ( len >= size )
{
printf( "Com_sprintf: overflow of %i in %i\n", len, size );
}
Q_strncpyz (dest, size, bigbuffer);
}
int Q_stricmpn( 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 )
{
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 Q_stricmpn( s1, s2, 99999 );
}
char *Q_strlwr (char *s1)
{
char *s;
s = s1;
while ( *s ) {
*s = tolower( *s );
s++;
}
return s1;
}
char *Q_strupr (char *s1)
{
char *s;
s = s1;
while ( *s ) {
*s = toupper( *s );
s++;
}
return s1;
}
#endif //SCREWUP
#ifdef BOTLIB
#include "../game/q_shared.h"
#include "botlib.h"
#include "be_interface.h"
#include "l_memory.h"
#include "l_script.h"
#include "l_precomp.h"
#include "l_log.h"
#endif //BOTLIB
#ifdef MEQCC
#include "qcc.h"
#include "time.h" //time & ctime
#include "math.h" //fabs
#include "l_memory.h"
#include "l_script.h"
#include "l_precomp.h"
#include "l_log.h"
#define qtrue true
#define qfalse false
#endif //MEQCC
#ifdef BSPC
//include files for usage in the BSP Converter
#include "../bspc/qbsp.h"
#include "../bspc/l_log.h"
#include "../bspc/l_mem.h"
#include "l_precomp.h"
#define qtrue true
#define qfalse false
#define Q_stricmp stricmp
#endif //BSPC
#if defined( QUAKE ) && !defined( BSPC )
#include "l_utils.h"
#endif //QUAKE
//#define DEBUG_EVAL
#define MAX_DEFINEPARMS 128
#define DEFINEHASHING 1
//directive name with parse function
typedef struct directive_s
{
char *name;
int ( *func )( source_t *source );
} directive_t;
#define DEFINEHASHSIZE 1024
#define TOKEN_HEAP_SIZE 4096
int numtokens;
/*
int tokenheapinitialized; //true when the token heap is initialized
token_t token_heap[TOKEN_HEAP_SIZE]; //heap with tokens
token_t *freetokens; //free tokens from the heap
*/
//list with global defines added to every source loaded
define_t *globaldefines;
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void QDECL SourceError( source_t *source, char *str, ... )
{
char text[1024];
va_list ap;
va_start( ap, str );
// vsprintf( text, str, ap );
Q_vsnprintf (text, sizeof(text), str, ap);
va_end( ap );
#ifdef BOTLIB
botimport.Print( PRT_ERROR, "file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text );
#endif //BOTLIB
#ifdef MEQCC
printf( "error: file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text );
#endif //MEQCC
#ifdef BSPC
Log_Print( "error: file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text );
#endif //BSPC
} //end of the function SourceError
//===========================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//===========================================================================
void QDECL SourceWarning( source_t *source, char *str, ... )
{
char text[1024];
va_list ap;
va_start( ap, str );
// vsprintf( text, str, ap );
Q_vsnprintf (text, sizeof(text), str, ap);
va_end( ap );
#ifdef BOTLIB
botimport.Print( PRT_WARNING, "file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text );
#endif //BOTLIB
#ifdef MEQCC
printf( "warning: file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text );
#endif //MEQCC
#ifdef BSPC
Log_Print( "warning: file %s, line %d: %s\n", source->scriptstack->filename, source->scriptstack->line, text );
#endif //BSPC
} //end of the function ScriptWarning
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_PushIndent( source_t *source, int type, int skip )
{
indent_t *indent;
indent = (indent_t *) GetMemory( sizeof( indent_t ) );
indent->type = type;
indent->script = source->scriptstack;
indent->skip = ( skip != 0 );
source->skip += indent->skip;
indent->next = source->indentstack;
source->indentstack = indent;
} //end of the function PC_PushIndent
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_PopIndent( source_t *source, int *type, int *skip )
{
indent_t *indent;
*type = 0;
*skip = 0;
indent = source->indentstack;
if ( !indent ) {
return;
}
//must be an indent from the current script
if ( source->indentstack->script != source->scriptstack ) {
return;
}
*type = indent->type;
*skip = indent->skip;
source->indentstack = source->indentstack->next;
source->skip -= indent->skip;
FreeMemory( indent );
} //end of the function PC_PopIndent
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_PushScript( source_t *source, script_t *script )
{
script_t *s;
for ( s = source->scriptstack; s; s = s->next )
{
if ( !Q_stricmp( s->filename, script->filename ) ) {
SourceError( source, "%s recursively included", script->filename );
return;
} //end if
} //end for
//push the script on the script stack
script->next = source->scriptstack;
source->scriptstack = script;
} //end of the function PC_PushScript
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_InitTokenHeap( void )
{
/*
int i;
if (tokenheapinitialized) return;
freetokens = NULL;
for (i = 0; i < TOKEN_HEAP_SIZE; i++)
{
token_heap[i].next = freetokens;
freetokens = &token_heap[i];
} //end for
tokenheapinitialized = qtrue;
*/
} //end of the function PC_InitTokenHeap
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
token_t *PC_CopyToken( token_t *token )
{
token_t *t;
// t = (token_t *) malloc(sizeof(token_t));
t = (token_t *) GetMemory( sizeof( token_t ) );
// t = freetokens;
if ( !t ) {
#ifdef BSPC
Error( "out of token space\n" );
#else
#ifdef SCREWUP
Error( "out of token space\n" );
#else
Com_Error( ERR_FATAL, "out of token space\n" );
#endif
#endif
return NULL;
} //end if
// freetokens = freetokens->next;
memcpy( t, token, sizeof( token_t ) );
t->next = NULL;
numtokens++;
return t;
} //end of the function PC_CopyToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_FreeToken( token_t *token )
{
//free(token);
FreeMemory( token );
// token->next = freetokens;
// freetokens = token;
numtokens--;
} //end of the function PC_FreeToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ReadSourceToken( source_t *source, token_t *token )
{
token_t *t;
script_t *script;
int type, skip;
//if there's no token already available
while ( !source->tokens )
{
//if there's a token to read from the script
if ( PS_ReadToken( source->scriptstack, token ) ) {
return qtrue;
}
//if at the end of the script
if ( EndOfScript( source->scriptstack ) )
{
//remove all indents of the script
while ( source->indentstack &&
source->indentstack->script == source->scriptstack )
{
SourceWarning( source, "missing #endif" );
PC_PopIndent( source, &type, &skip );
} //end if
} //end if
//if this was the initial script
if ( !source->scriptstack->next ) {
return qfalse;
}
//remove the script and return to the last one
script = source->scriptstack;
source->scriptstack = source->scriptstack->next;
FreeScript( script );
} //end while
//copy the already available token
memcpy( token, source->tokens, sizeof( token_t ) );
//free the read token
t = source->tokens;
source->tokens = source->tokens->next;
PC_FreeToken( t );
return qtrue;
} //end of the function PC_ReadSourceToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_UnreadSourceToken( source_t *source, token_t *token )
{
token_t *t;
t = PC_CopyToken( token );
t->next = source->tokens;
source->tokens = t;
return qtrue;
} //end of the function PC_UnreadSourceToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ReadDefineParms( source_t *source, define_t *define, token_t **parms, int maxparms )
{
token_t token, *t, *last;
int i, done, lastcomma, numparms, indent;
if ( !PC_ReadSourceToken( source, &token ) ) {
// Knightmare- debug output
// printf("PC_ReadDefineParms: PC_ReadSourceToken failed, define %s missing parms in file %s\n", define->name, source->filename);
SourceError( source, "define %s missing parms", define->name );
return qfalse;
} //end if
//
if ( define->numparms > maxparms ) {
// Knightmare- debug output
// printf("PC_ReadDefineParms: define %s with more than %d parameters in file %s\n", define->name, maxparms, source->filename);
SourceError( source, "define with more than %d parameters", maxparms );
return qfalse;
} //end if
//
for ( i = 0; i < define->numparms; i++ ) parms[i] = NULL;
//if no leading "("
if ( strcmp( token.string, "(" ) ) {
PC_UnreadSourceToken( source, &token );
// Knightmare- debug output
// printf("PC_ReadDefineParms: %s instead of leading \"(\" for define %s in file %s\n", token.string, define->name, source->filename);
SourceError( source, "define %s missing parms", define->name );
return qfalse;
} //end if
//read the define parameters
for ( done = 0, numparms = 0, indent = 0; !done; )
{
if ( numparms >= maxparms ) {
// Knightmare- debug output
// printf("PC_ReadDefineParms: define %s with too many parms in file %s\n", define->name, source->filename);
SourceError( source, "define %s with too many parms", define->name );
return qfalse;
} //end if
if ( numparms >= define->numparms ) {
// Knightmare- debug output
// printf("PC_ReadDefineParms: define %s has too many parms in file %s\n", define->name, source->filename);
SourceWarning( source, "define %s has too many parms", define->name );
return qfalse;
} //end if
parms[numparms] = NULL;
lastcomma = 1;
last = NULL;
while ( !done )
{
//
if ( !PC_ReadSourceToken( source, &token ) ) {
// Knightmare- debug output
// printf("PC_ReadDefineParms: define %s incomplete in file %s\n", define->name, source->filename);
SourceError( source, "define %s incomplete", define->name );
return qfalse;
} //end if
//
if ( !strcmp( token.string, "," ) ) {
if ( indent <= 0 ) {
if ( lastcomma ) {
SourceWarning( source, "too many comma's" );
}
lastcomma = 1;
break;
} //end if
} //end if
lastcomma = 0;
//
if ( !strcmp( token.string, "(" ) ) {
indent++;
continue;
} //end if
else if ( !strcmp( token.string, ")" ) ) {
if ( --indent <= 0 ) {
if ( !parms[define->numparms - 1] ) {
SourceWarning( source, "too few define parms" );
} //end if
done = 1;
break;
} //end if
} //end if
//
if ( numparms < define->numparms ) {
//
t = PC_CopyToken( &token );
t->next = NULL;
if ( last ) {
last->next = t;
} else { parms[numparms] = t;}
last = t;
} //end if
} //end while
numparms++;
} //end for
return qtrue;
} //end of the function PC_ReadDefineParms
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_StringizeTokens( token_t *tokens, token_t *token )
{
token_t *t;
token->type = TT_STRING;
token->whitespace_p = NULL;
token->endwhitespace_p = NULL;
token->string[0] = '\0';
strcat( token->string, "\"" );
for ( t = tokens; t; t = t->next )
{
strncat( token->string, t->string, MAX_TOKEN - strlen( token->string ) );
} //end for
strncat( token->string, "\"", MAX_TOKEN - strlen( token->string ) );
return qtrue;
} //end of the function PC_StringizeTokens
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_MergeTokens( token_t *t1, token_t *t2 )
{
//merging of a name with a name or number
if ( t1->type == TT_NAME && ( t2->type == TT_NAME || t2->type == TT_NUMBER ) )
{
strcat( t1->string, t2->string );
return qtrue;
} //end if
//merging of two strings
if ( t1->type == TT_STRING && t2->type == TT_STRING ) {
//remove trailing double quote
t1->string[strlen( t1->string ) - 1] = '\0';
//concat without leading double quote
strcat( t1->string, &t2->string[1] );
return qtrue;
} //end if
//FIXME: merging of two number of the same sub type
return qfalse;
} //end of the function PC_MergeTokens
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
/*
void PC_PrintDefine(define_t *define)
{
printf("define->name = %s\n", define->name);
printf("define->flags = %d\n", define->flags);
printf("define->builtin = %d\n", define->builtin);
printf("define->numparms = %d\n", define->numparms);
// token_t *parms; //define parameters
// token_t *tokens; //macro tokens (possibly containing parm tokens)
// struct define_s *next; //next defined macro in a list
} //end of the function PC_PrintDefine*/
#if DEFINEHASHING
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_PrintDefineHashTable( define_t **definehash )
{
int i;
define_t *d;
for ( i = 0; i < DEFINEHASHSIZE; i++ )
{
Log_Write( "%4d:", i );
for ( d = definehash[i]; d; d = d->hashnext )
{
Log_Write( " %s", d->name );
} //end for
Log_Write( "\n" );
} //end for
} //end of the function PC_PrintDefineHashTable
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
//char primes[16] = {1, 3, 5, 7, 11, 13, 17, 19, 23, 27, 29, 31, 37, 41, 43, 47};
int PC_NameHash( char *name )
{
int register hash, i;
hash = 0;
for ( i = 0; name[i] != '\0'; i++ )
{
hash += name[i] * ( 119 + i );
//hash += (name[i] << 7) + i;
//hash += (name[i] << (i&15));
} //end while
hash = ( hash ^ ( hash >> 10 ) ^ ( hash >> 20 ) ) & ( DEFINEHASHSIZE - 1 );
return hash;
} //end of the function PC_NameHash
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_AddDefineToHash( define_t *define, define_t **definehash )
{
int hash;
hash = PC_NameHash( define->name );
define->hashnext = definehash[hash];
definehash[hash] = define;
} //end of the function PC_AddDefineToHash
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
define_t *PC_FindHashedDefine( define_t **definehash, char *name )
{
define_t *d;
int hash;
hash = PC_NameHash( name );
for ( d = definehash[hash]; d; d = d->hashnext )
{
if ( !strcmp( d->name, name ) ) {
return d;
}
} //end for
return NULL;
} //end of the function PC_FindHashedDefine
#endif //DEFINEHASHING
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
define_t *PC_FindDefine( define_t *defines, char *name )
{
define_t *d;
for ( d = defines; d; d = d->next )
{
if ( !strcmp( d->name, name ) ) {
return d;
}
} //end for
return NULL;
} //end of the function PC_FindDefine
//============================================================================
//
// Parameter: -
// Returns: number of the parm
// if no parm found with the given name -1 is returned
// Changes Globals: -
//============================================================================
int PC_FindDefineParm( define_t *define, char *name )
{
token_t *p;
int i;
i = 0;
for ( p = define->parms; p; p = p->next )
{
if ( !strcmp( p->string, name ) ) {
return i;
}
i++;
} //end for
return -1;
} //end of the function PC_FindDefineParm
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_FreeDefine( define_t *define )
{
token_t *t, *next;
//free the define parameters
for ( t = define->parms; t; t = next )
{
next = t->next;
PC_FreeToken( t );
} //end for
//free the define tokens
for ( t = define->tokens; t; t = next )
{
next = t->next;
PC_FreeToken( t );
} //end for
//free the define
FreeMemory( define );
} //end of the function PC_FreeDefine
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_AddBuiltinDefines( source_t *source )
{
int i;
define_t *define;
struct builtin
{
char *string;
int builtin;
} builtin[] = {
"__LINE__", BUILTIN_LINE,
"__FILE__", BUILTIN_FILE,
"__DATE__", BUILTIN_DATE,
"__TIME__", BUILTIN_TIME,
// "__STDC__", BUILTIN_STDC,
NULL, 0
};
for ( i = 0; builtin[i].string; i++ )
{
define = (define_t *) GetMemory( sizeof( define_t ) + (int)strlen( builtin[i].string ) + 1 );
memset( define, 0, sizeof( define_t ) );
define->name = (char *) define + sizeof( define_t );
strcpy( define->name, builtin[i].string );
define->flags |= DEFINE_FIXED;
define->builtin = builtin[i].builtin;
//add the define to the source
#if DEFINEHASHING
PC_AddDefineToHash( define, source->definehash );
#else
define->next = source->defines;
source->defines = define;
#endif //DEFINEHASHING
} //end for
} //end of the function PC_AddBuiltinDefines
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ExpandBuiltinDefine( source_t *source, define_t *define,
token_t **firsttoken, token_t **lasttoken )
{
token_t token;
time_t t; // unsigned long prevents LCC warning
char *curtime;
memcpy( &token, &source->token, sizeof( token_t ) );
switch ( define->builtin )
{
case BUILTIN_LINE:
{
sprintf( token.string, "%d", source->token.line );
#ifdef NUMBERVALUE
token.intvalue = source->token.line;
token.floatvalue = source->token.line;
#endif //NUMBERVALUE
token.type = TT_NUMBER;
token.subtype = TT_DECIMAL | TT_INTEGER;
*firsttoken = &token;
*lasttoken = &token;
break;
} //end case
case BUILTIN_FILE:
{
strcpy( token.string, source->scriptstack->filename );
token.type = TT_NAME;
token.subtype = (int)strlen( token.string );
*firsttoken = &token;
*lasttoken = &token;
break;
} //end case
case BUILTIN_DATE:
{
t = time( NULL );
curtime = ctime( &t );
strcpy( token.string, "\"" );
strncat( token.string, curtime + 4, 7 );
strncat( token.string + 7, curtime + 20, 4 );
strcat( token.string, "\"" );
free( curtime );
token.type = TT_NAME;
token.subtype = (int)strlen( token.string );
*firsttoken = &token;
*lasttoken = &token;
break;
} //end case
case BUILTIN_TIME:
{
t = time( NULL );
curtime = ctime( &t );
strcpy( token.string, "\"" );
strncat( token.string, curtime + 11, 8 );
strcat( token.string, "\"" );
free( curtime );
token.type = TT_NAME;
token.subtype = (int)strlen( token.string );
*firsttoken = &token;
*lasttoken = &token;
break;
} //end case
case BUILTIN_STDC:
default:
{
*firsttoken = NULL;
*lasttoken = NULL;
break;
} //end case
} //end switch
return qtrue;
} //end of the function PC_ExpandBuiltinDefine
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ExpandDefine( source_t *source, define_t *define,
token_t **firsttoken, token_t **lasttoken )
{
token_t *parms[MAX_DEFINEPARMS], *dt, *pt, *t;
token_t *t1, *t2, *first, *last, *nextpt, token;
int parmnum, i;
//if it is a builtin define
if ( define->builtin ) {
return PC_ExpandBuiltinDefine( source, define, firsttoken, lasttoken );
} //end if
//if the define has parameters
if ( define->numparms ) {
if ( !PC_ReadDefineParms( source, define, parms, MAX_DEFINEPARMS ) ) {
return qfalse;
}
#ifdef DEBUG_EVAL
for ( i = 0; i < define->numparms; i++ )
{
Log_Write( "define parms %d:", i );
for ( pt = parms[i]; pt; pt = pt->next )
{
Log_Write( "%s", pt->string );
} //end for
} //end for
#endif //DEBUG_EVAL
} //end if
//empty list at first
first = NULL;
last = NULL;
//create a list with tokens of the expanded define
for ( dt = define->tokens; dt; dt = dt->next )
{
parmnum = -1;
//if the token is a name, it could be a define parameter
if ( dt->type == TT_NAME ) {
parmnum = PC_FindDefineParm( define, dt->string );
} //end if
//if it is a define parameter
if ( parmnum >= 0 ) {
for ( pt = parms[parmnum]; pt; pt = pt->next )
{
t = PC_CopyToken( pt );
//add the token to the list
t->next = NULL;
if ( last ) {
last->next = t;
} else { first = t;}
last = t;
} //end for
} //end if
else
{
//if stringizing operator
if ( dt->string[0] == '#' && dt->string[1] == '\0' ) {
//the stringizing operator must be followed by a define parameter
if ( dt->next ) {
parmnum = PC_FindDefineParm( define, dt->next->string );
} else { parmnum = -1;}
//
if ( parmnum >= 0 ) {
//step over the stringizing operator
dt = dt->next;
//stringize the define parameter tokens
if ( !PC_StringizeTokens( parms[parmnum], &token ) ) {
SourceError( source, "can't stringize tokens" );
return qfalse;
} //end if
t = PC_CopyToken( &token );
} //end if
else
{
SourceWarning( source, "stringizing operator without define parameter" );
continue;
} //end if
} //end if
else
{
t = PC_CopyToken( dt );
} //end else
//add the token to the list
t->next = NULL;
if ( last ) {
last->next = t;
} else { first = t;}
last = t;
} //end else
} //end for
//check for the merging operator
for ( t = first; t; )
{
if ( t->next ) {
//if the merging operator
if ( t->next->string[0] == '#' && t->next->string[1] == '#' ) {
t1 = t;
t2 = t->next->next;
if ( t2 ) {
if ( !PC_MergeTokens( t1, t2 ) ) {
SourceError( source, "can't merge %s with %s", t1->string, t2->string );
return qfalse;
} //end if
PC_FreeToken( t1->next );
t1->next = t2->next;
if ( t2 == last ) {
last = t1;
}
PC_FreeToken( t2 );
continue;
} //end if
} //end if
} //end if
t = t->next;
} //end for
//store the first and last token of the list
*firsttoken = first;
*lasttoken = last;
//free all the parameter tokens
for ( i = 0; i < define->numparms; i++ )
{
for ( pt = parms[i]; pt; pt = nextpt )
{
nextpt = pt->next;
PC_FreeToken( pt );
} //end for
} //end for
//
return qtrue;
} //end of the function PC_ExpandDefine
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ExpandDefineIntoSource( source_t *source, define_t *define )
{
token_t *firsttoken, *lasttoken;
if ( !PC_ExpandDefine( source, define, &firsttoken, &lasttoken ) ) {
return qfalse;
}
if ( firsttoken && lasttoken ) {
lasttoken->next = source->tokens;
source->tokens = firsttoken;
return qtrue;
} //end if
return qfalse;
} //end of the function PC_ExpandDefineIntoSource
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_ConvertPath( char *path )
{
char *ptr;
//remove double path seperators
for ( ptr = path; *ptr; )
{
if ( ( *ptr == '\\' || *ptr == '/' ) &&
( *( ptr + 1 ) == '\\' || *( ptr + 1 ) == '/' ) ) {
strcpy( ptr, ptr + 1 );
} //end if
else
{
ptr++;
} //end else
} //end while
//set OS dependent path seperators
for ( ptr = path; *ptr; )
{
if ( *ptr == '/' || *ptr == '\\' ) {
*ptr = PATHSEPERATOR_CHAR;
}
ptr++;
} //end while
} //end of the function PC_ConvertPath
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_include( source_t *source )
{
script_t *script;
token_t token;
char path[_MAX_PATH];
#ifdef QUAKE
foundfile_t file;
#endif //QUAKE
if ( source->skip > 0 ) {
return qtrue;
}
//
if ( !PC_ReadSourceToken( source, &token ) ) {
SourceError( source, "#include without file name" );
return qfalse;
} //end if
if ( token.linescrossed > 0 ) {
SourceError( source, "#include without file name" );
return qfalse;
} //end if
if ( token.type == TT_STRING ) {
StripDoubleQuotes( token.string );
PC_ConvertPath( token.string );
script = LoadScriptFile( token.string );
if ( !script ) {
strcpy( path, source->includepath );
strcat( path, token.string );
script = LoadScriptFile( path );
} //end if
} //end if
else if ( token.type == TT_PUNCTUATION && *token.string == '<' ) {
strcpy( path, source->includepath );
while ( PC_ReadSourceToken( source, &token ) )
{
if ( token.linescrossed > 0 ) {
PC_UnreadSourceToken( source, &token );
break;
} //end if
if ( token.type == TT_PUNCTUATION && *token.string == '>' ) {
break;
}
strncat( path, token.string, _MAX_PATH );
} //end while
if ( *token.string != '>' ) {
SourceWarning( source, "#include missing trailing >" );
} //end if
if ( !strlen( path ) ) {
SourceError( source, "#include without file name between < >" );
return qfalse;
} //end if
PC_ConvertPath( path );
script = LoadScriptFile( path );
} //end if
else
{
SourceError( source, "#include without file name" );
return qfalse;
} //end else
#ifdef QUAKE
if ( !script ) {
memset( &file, 0, sizeof( foundfile_t ) );
script = LoadScriptFile( path );
if ( script ) {
strncpy( script->filename, path, _MAX_PATH );
}
} //end if
#endif //QUAKE
if ( !script ) {
#ifdef SCREWUP
SourceWarning( source, "file %s not found", path );
return qtrue;
#else
SourceError( source, "file %s not found", path );
return qfalse;
#endif //SCREWUP
} //end if
PC_PushScript( source, script );
return qtrue;
} //end of the function PC_Directive_include
//============================================================================
// reads a token from the current line, continues reading on the next
// line only if a backslash '\' is encountered.
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ReadLine( source_t *source, token_t *token )
{
int crossline;
crossline = 0;
do
{
if ( !PC_ReadSourceToken( source, token ) ) {
return qfalse;
}
if ( token->linescrossed > crossline ) {
PC_UnreadSourceToken( source, token );
return qfalse;
} //end if
crossline = 1;
} while ( !strcmp( token->string, "\\" ) );
return qtrue;
} //end of the function PC_ReadLine
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_WhiteSpaceBeforeToken( token_t *token )
{
return token->endwhitespace_p - token->whitespace_p > 0;
} //end of the function PC_WhiteSpaceBeforeToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_ClearTokenWhiteSpace( token_t *token )
{
token->whitespace_p = NULL;
token->endwhitespace_p = NULL;
token->linescrossed = 0;
} //end of the function PC_ClearTokenWhiteSpace
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_undef( source_t *source )
{
token_t token;
define_t *define, *lastdefine;
int hash;
if ( source->skip > 0 ) {
return qtrue;
}
//
if ( !PC_ReadLine( source, &token ) ) {
SourceError( source, "undef without name" );
return qfalse;
} //end if
if ( token.type != TT_NAME ) {
PC_UnreadSourceToken( source, &token );
SourceError( source, "expected name, found %s", token.string );
return qfalse;
} //end if
#if DEFINEHASHING
hash = PC_NameHash( token.string );
for ( lastdefine = NULL, define = source->definehash[hash]; define; define = define->hashnext )
{
if ( !strcmp( define->name, token.string ) ) {
if ( define->flags & DEFINE_FIXED ) {
SourceWarning( source, "can't undef %s", token.string );
} //end if
else
{
if ( lastdefine ) {
lastdefine->hashnext = define->hashnext;
} else { source->definehash[hash] = define->hashnext;}
PC_FreeDefine( define );
} //end else
break;
} //end if
lastdefine = define;
} //end for
#else //DEFINEHASHING
for ( lastdefine = NULL, define = source->defines; define; define = define->next )
{
if ( !strcmp( define->name, token.string ) ) {
if ( define->flags & DEFINE_FIXED ) {
SourceWarning( source, "can't undef %s", token.string );
} //end if
else
{
if ( lastdefine ) {
lastdefine->next = define->next;
} else { source->defines = define->next;}
PC_FreeDefine( define );
} //end else
break;
} //end if
lastdefine = define;
} //end for
#endif //DEFINEHASHING
return qtrue;
} //end of the function PC_Directive_undef
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_define( source_t *source )
{
token_t token, *t, *last;
define_t *define;
if ( source->skip > 0 ) {
return qtrue;
}
//
if ( !PC_ReadLine( source, &token ) ) {
SourceError( source, "#define without name" );
return qfalse;
} //end if
if ( token.type != TT_NAME ) {
PC_UnreadSourceToken( source, &token );
SourceError( source, "expected name after #define, found %s", token.string );
return qfalse;
} //end if
//check if the define already exists
#if DEFINEHASHING
define = PC_FindHashedDefine( source->definehash, token.string );
#else
define = PC_FindDefine( source->defines, token.string );
#endif //DEFINEHASHING
if ( define ) {
if ( define->flags & DEFINE_FIXED ) {
SourceError( source, "can't redefine %s", token.string );
return qfalse;
} //end if
SourceWarning( source, "redefinition of %s", token.string );
//unread the define name before executing the #undef directive
PC_UnreadSourceToken( source, &token );
if ( !PC_Directive_undef( source ) ) {
return qfalse;
}
//if the define was not removed (define->flags & DEFINE_FIXED)
#if DEFINEHASHING
define = PC_FindHashedDefine( source->definehash, token.string );
#else
define = PC_FindDefine( source->defines, token.string );
#endif //DEFINEHASHING
} //end if
//allocate define
define = (define_t *) GetMemory( sizeof( define_t ) + (int)strlen( token.string ) + 1 );
memset( define, 0, sizeof( define_t ) );
define->name = (char *) define + sizeof( define_t );
strcpy( define->name, token.string );
//add the define to the source
#if DEFINEHASHING
PC_AddDefineToHash( define, source->definehash );
#else //DEFINEHASHING
define->next = source->defines;
source->defines = define;
#endif //DEFINEHASHING
//if nothing is defined, just return
if ( !PC_ReadLine( source, &token ) ) {
return qtrue;
}
//if it is a define with parameters
if ( !PC_WhiteSpaceBeforeToken( &token ) && !strcmp( token.string, "(" ) ) {
//read the define parameters
last = NULL;
if ( !PC_CheckTokenString( source, ")" ) ) {
while ( 1 )
{
if ( !PC_ReadLine( source, &token ) ) {
SourceError( source, "expected define parameter" );
return qfalse;
} //end if
//if it isn't a name
if ( token.type != TT_NAME ) {
SourceError( source, "invalid define parameter" );
return qfalse;
} //end if
//
if ( PC_FindDefineParm( define, token.string ) >= 0 ) {
SourceError( source, "two the same define parameters" );
return qfalse;
} //end if
//add the define parm
t = PC_CopyToken( &token );
PC_ClearTokenWhiteSpace( t );
t->next = NULL;
if ( last ) {
last->next = t;
} else { define->parms = t;}
last = t;
define->numparms++;
//read next token
if ( !PC_ReadLine( source, &token ) ) {
SourceError( source, "define parameters not terminated" );
return qfalse;
} //end if
//
if ( !strcmp( token.string, ")" ) ) {
break;
}
//then it must be a comma
if ( strcmp( token.string, "," ) ) {
SourceError( source, "define not terminated" );
return qfalse;
} //end if
} //end while
} //end if
if ( !PC_ReadLine( source, &token ) ) {
return qtrue;
}
} //end if
//read the defined stuff
last = NULL;
do
{
t = PC_CopyToken( &token );
if ( t->type == TT_NAME && !strcmp( t->string, define->name ) ) {
SourceError( source, "recursive define (removed recursion)" );
continue;
} //end if
PC_ClearTokenWhiteSpace( t );
t->next = NULL;
if ( last ) {
last->next = t;
} else { define->tokens = t;}
last = t;
} while ( PC_ReadLine( source, &token ) );
//
if ( last ) {
//check for merge operators at the beginning or end
if ( !strcmp( define->tokens->string, "##" ) ||
!strcmp( last->string, "##" ) ) {
SourceError( source, "define with misplaced ##" );
return qfalse;
} //end if
} //end if
return qtrue;
} //end of the function PC_Directive_define
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
define_t *PC_DefineFromString( char *string )
{
script_t *script;
source_t src;
token_t *t;
int res, i;
define_t *def;
PC_InitTokenHeap();
script = LoadScriptMemory( string, (int)strlen( string ), "*extern" );
//create a new source
memset( &src, 0, sizeof( source_t ) );
strncpy( src.filename, "*extern", _MAX_PATH );
src.scriptstack = script;
#if DEFINEHASHING
src.definehash = GetClearedMemory( DEFINEHASHSIZE * sizeof( define_t * ) );
#endif //DEFINEHASHING
//create a define from the source
res = PC_Directive_define( &src );
//free any tokens if left
for ( t = src.tokens; t; t = src.tokens )
{
src.tokens = src.tokens->next;
PC_FreeToken( t );
} //end for
#ifdef DEFINEHASHING
def = NULL;
for ( i = 0; i < DEFINEHASHSIZE; i++ )
{
if ( src.definehash[i] ) {
def = src.definehash[i];
break;
} //end if
} //end for
#else
def = src.defines;
#endif //DEFINEHASHING
//
#if DEFINEHASHING
FreeMemory( src.definehash );
#endif //DEFINEHASHING
//
FreeScript( script );
//if the define was created succesfully
if ( res > 0 ) {
return def;
}
//free the define if created
if ( src.defines ) {
PC_FreeDefine( def );
}
//
return NULL;
} //end of the function PC_DefineFromString
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_AddDefine( source_t *source, char *string )
{
define_t *define;
define = PC_DefineFromString( string );
if ( !define ) {
return qfalse;
}
#if DEFINEHASHING
PC_AddDefineToHash( define, source->definehash );
#else //DEFINEHASHING
define->next = source->defines;
source->defines = define;
#endif //DEFINEHASHING
return qtrue;
} //end of the function PC_AddDefine
//============================================================================
// add a globals define that will be added to all opened sources
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_AddGlobalDefine( char *string )
{
define_t *define;
define = PC_DefineFromString( string );
if ( !define ) {
return qfalse;
}
define->next = globaldefines;
globaldefines = define;
return qtrue;
} //end of the function PC_AddGlobalDefine
//============================================================================
// remove the given global define
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_RemoveGlobalDefine( char *name )
{
define_t *define;
define = PC_FindDefine( globaldefines, name );
if ( define ) {
PC_FreeDefine( define );
return qtrue;
} //end if
return qfalse;
} //end of the function PC_RemoveGlobalDefine
//============================================================================
// remove all globals defines
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_RemoveAllGlobalDefines( void )
{
define_t *define;
for ( define = globaldefines; define; define = globaldefines )
{
globaldefines = globaldefines->next;
PC_FreeDefine( define );
} //end for
} //end of the function PC_RemoveAllGlobalDefines
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
define_t *PC_CopyDefine( source_t *source, define_t *define )
{
define_t *newdefine;
token_t *token, *newtoken, *lasttoken;
newdefine = (define_t *) GetMemory( sizeof( define_t ) + (int)strlen( define->name ) + 1 );
//copy the define name
newdefine->name = (char *) newdefine + sizeof( define_t );
strcpy( newdefine->name, define->name );
newdefine->flags = define->flags;
newdefine->builtin = define->builtin;
newdefine->numparms = define->numparms;
//the define is not linked
newdefine->next = NULL;
newdefine->hashnext = NULL;
//copy the define tokens
newdefine->tokens = NULL;
for ( lasttoken = NULL, token = define->tokens; token; token = token->next )
{
newtoken = PC_CopyToken( token );
newtoken->next = NULL;
if ( lasttoken ) {
lasttoken->next = newtoken;
} else { newdefine->tokens = newtoken;}
lasttoken = newtoken;
} //end for
//copy the define parameters
newdefine->parms = NULL;
for ( lasttoken = NULL, token = define->parms; token; token = token->next )
{
newtoken = PC_CopyToken( token );
newtoken->next = NULL;
if ( lasttoken ) {
lasttoken->next = newtoken;
} else { newdefine->parms = newtoken;}
lasttoken = newtoken;
} //end for
return newdefine;
} //end of the function PC_CopyDefine
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_AddGlobalDefinesToSource( source_t *source )
{
define_t *define, *newdefine;
for ( define = globaldefines; define; define = define->next )
{
newdefine = PC_CopyDefine( source, define );
#if DEFINEHASHING
PC_AddDefineToHash( newdefine, source->definehash );
#else //DEFINEHASHING
newdefine->next = source->defines;
source->defines = newdefine;
#endif //DEFINEHASHING
} //end for
} //end of the function PC_AddGlobalDefinesToSource
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_if_def( source_t *source, int type )
{
token_t token;
define_t *d;
int skip;
if ( !PC_ReadLine( source, &token ) ) {
SourceError( source, "#ifdef without name" );
return qfalse;
} //end if
if ( token.type != TT_NAME ) {
PC_UnreadSourceToken( source, &token );
SourceError( source, "expected name after #ifdef, found %s", token.string );
return qfalse;
} //end if
#if DEFINEHASHING
d = PC_FindHashedDefine( source->definehash, token.string );
#else
d = PC_FindDefine( source->defines, token.string );
#endif //DEFINEHASHING
skip = ( type == INDENT_IFDEF ) == ( d == NULL );
PC_PushIndent( source, type, skip );
return qtrue;
} //end of the function PC_Directiveif_def
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_ifdef( source_t *source )
{
return PC_Directive_if_def( source, INDENT_IFDEF );
} //end of the function PC_Directive_ifdef
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_ifndef( source_t *source )
{
return PC_Directive_if_def( source, INDENT_IFNDEF );
} //end of the function PC_Directive_ifndef
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_else( source_t *source )
{
int type, skip;
PC_PopIndent( source, &type, &skip );
if ( !type ) {
SourceError( source, "misplaced #else" );
return qfalse;
} //end if
if ( type == INDENT_ELSE ) {
SourceError( source, "#else after #else" );
return qfalse;
} //end if
PC_PushIndent( source, INDENT_ELSE, !skip );
return qtrue;
} //end of the function PC_Directive_else
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_endif( source_t *source )
{
int type, skip;
PC_PopIndent( source, &type, &skip );
if ( !type ) {
SourceError( source, "misplaced #endif" );
return qfalse;
} //end if
return qtrue;
} //end of the function PC_Directive_endif
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
typedef struct operator_s
{
int operator;
int priority;
int parentheses;
struct operator_s *prev, *next;
} operator_t;
typedef struct value_s
{
signed long int intvalue;
double floatvalue;
int parentheses;
struct value_s *prev, *next;
} value_t;
int PC_OperatorPriority( int op )
{
switch ( op )
{
case P_MUL: return 15;
case P_DIV: return 15;
case P_MOD: return 15;
case P_ADD: return 14;
case P_SUB: return 14;
case P_LOGIC_AND: return 7;
case P_LOGIC_OR: return 6;
case P_LOGIC_GEQ: return 12;
case P_LOGIC_LEQ: return 12;
case P_LOGIC_EQ: return 11;
case P_LOGIC_UNEQ: return 11;
case P_LOGIC_NOT: return 16;
case P_LOGIC_GREATER: return 12;
case P_LOGIC_LESS: return 12;
case P_RSHIFT: return 13;
case P_LSHIFT: return 13;
case P_BIN_AND: return 10;
case P_BIN_OR: return 8;
case P_BIN_XOR: return 9;
case P_BIN_NOT: return 16;
case P_COLON: return 5;
case P_QUESTIONMARK: return 5;
} //end switch
return qfalse;
} //end of the function PC_OperatorPriority
//#define AllocValue() GetClearedMemory(sizeof(value_t));
//#define FreeValue(val) FreeMemory(val)
//#define AllocOperator(op) op = (operator_t *) GetClearedMemory(sizeof(operator_t));
//#define FreeOperator(op) FreeMemory(op);
#define MAX_VALUES 64
#define MAX_OPERATORS 64
#define AllocValue( val ) \
if ( numvalues >= MAX_VALUES ) { \
SourceError( source, "out value space\n" ); \
error = 1; \
break; \
} \
else { \
val = &value_heap[numvalues++];}
#define FreeValue( val )
//
#define AllocOperator( op ) \
if ( numoperators >= MAX_OPERATORS ) { \
SourceError( source, "out operator space\n" ); \
error = 1; \
break; \
} \
else { \
op = &operator_heap[numoperators++];}
#define FreeOperator( op )
int PC_EvaluateTokens( source_t *source, token_t *tokens, signed long int *intvalue,
double *floatvalue, int integer )
{
operator_t *o, *firstoperator, *lastoperator;
value_t *v, *firstvalue, *lastvalue, *v1, *v2;
token_t *t;
int brace = 0;
int parentheses = 0;
int error = 0;
int lastwasvalue = 0;
int negativevalue = 0;
int questmarkintvalue = 0;
double questmarkfloatvalue = 0;
int gotquestmarkvalue = qfalse;
int lastoperatortype = 0;
//
operator_t operator_heap[MAX_OPERATORS];
int numoperators = 0;
value_t value_heap[MAX_VALUES];
int numvalues = 0;
firstoperator = lastoperator = NULL;
firstvalue = lastvalue = NULL;
if ( intvalue ) {
*intvalue = 0;
}
if ( floatvalue ) {
*floatvalue = 0;
}
for ( t = tokens; t; t = t->next )
{
switch ( t->type )
{
case TT_NAME:
{
if ( lastwasvalue || negativevalue ) {
SourceError( source, "syntax error in #if/#elif" );
error = 1;
break;
} //end if
if ( strcmp( t->string, "defined" ) ) {
SourceError( source, "undefined name %s in #if/#elif", t->string );
error = 1;
break;
} //end if
t = t->next;
if ( !strcmp( t->string, "(" ) ) {
brace = qtrue;
t = t->next;
} //end if
if ( !t || t->type != TT_NAME ) {
SourceError( source, "defined without name in #if/#elif" );
error = 1;
break;
} //end if
//v = (value_t *) GetClearedMemory(sizeof(value_t));
AllocValue( v );
#if DEFINEHASHING
if ( PC_FindHashedDefine( source->definehash, t->string ) )
#else
if ( PC_FindDefine( source->defines, t->string ) )
#endif //DEFINEHASHING
{
v->intvalue = 1;
v->floatvalue = 1;
} //end if
else
{
v->intvalue = 0;
v->floatvalue = 0;
} //end else
v->parentheses = parentheses;
v->next = NULL;
v->prev = lastvalue;
if ( lastvalue ) {
lastvalue->next = v;
} else { firstvalue = v;}
lastvalue = v;
if ( brace ) {
t = t->next;
if ( !t || strcmp( t->string, ")" ) ) {
SourceError( source, "defined without ) in #if/#elif" );
error = 1;
break;
} //end if
} //end if
brace = qfalse;
// defined() creates a value
lastwasvalue = 1;
break;
} //end case
case TT_NUMBER:
{
if ( lastwasvalue ) {
SourceError( source, "syntax error in #if/#elif" );
error = 1;
break;
} //end if
//v = (value_t *) GetClearedMemory(sizeof(value_t));
AllocValue( v );
if ( negativevalue ) {
v->intvalue = -(signed int) t->intvalue;
v->floatvalue = -t->floatvalue;
} //end if
else
{
v->intvalue = t->intvalue;
v->floatvalue = t->floatvalue;
} //end else
v->parentheses = parentheses;
v->next = NULL;
v->prev = lastvalue;
if ( lastvalue ) {
lastvalue->next = v;
} else { firstvalue = v;}
lastvalue = v;
//last token was a value
lastwasvalue = 1;
//
negativevalue = 0;
break;
} //end case
case TT_PUNCTUATION:
{
if ( negativevalue ) {
SourceError( source, "misplaced minus sign in #if/#elif" );
error = 1;
break;
} //end if
if ( t->subtype == P_PARENTHESESOPEN ) {
parentheses++;
break;
} //end if
else if ( t->subtype == P_PARENTHESESCLOSE ) {
parentheses--;
if ( parentheses < 0 ) {
SourceError( source, "too many ) in #if/#elsif" );
error = 1;
} //end if
break;
} //end else if
//check for invalid operators on floating point values
if ( !integer ) {
if ( t->subtype == P_BIN_NOT || t->subtype == P_MOD ||
t->subtype == P_RSHIFT || t->subtype == P_LSHIFT ||
t->subtype == P_BIN_AND || t->subtype == P_BIN_OR ||
t->subtype == P_BIN_XOR ) {
SourceError( source, "illigal operator %s on floating point operands\n", t->string );
error = 1;
break;
} //end if
} //end if
switch ( t->subtype )
{
case P_LOGIC_NOT:
case P_BIN_NOT:
{
if ( lastwasvalue ) {
SourceError( source, "! or ~ after value in #if/#elif" );
error = 1;
break;
} //end if
break;
} //end case
case P_SUB:
{
if ( !lastwasvalue ) {
negativevalue = 1;
break;
} //end if
} //end case
case P_MUL:
case P_DIV:
case P_MOD:
case P_ADD:
case P_LOGIC_AND:
case P_LOGIC_OR:
case P_LOGIC_GEQ:
case P_LOGIC_LEQ:
case P_LOGIC_EQ:
case P_LOGIC_UNEQ:
case P_LOGIC_GREATER:
case P_LOGIC_LESS:
case P_RSHIFT:
case P_LSHIFT:
case P_BIN_AND:
case P_BIN_OR:
case P_BIN_XOR:
case P_COLON:
case P_QUESTIONMARK:
{
if ( !lastwasvalue ) {
SourceError( source, "operator %s after operator in #if/#elif", t->string );
error = 1;
break;
} //end if
break;
} //end case
default:
{
SourceError( source, "invalid operator %s in #if/#elif", t->string );
error = 1;
break;
} //end default
} //end switch
if ( !error && !negativevalue ) {
//o = (operator_t *) GetClearedMemory(sizeof(operator_t));
AllocOperator( o );
o->operator = t->subtype;
o->priority = PC_OperatorPriority( t->subtype );
o->parentheses = parentheses;
o->next = NULL;
o->prev = lastoperator;
if ( lastoperator ) {
lastoperator->next = o;
} else { firstoperator = o;}
lastoperator = o;
lastwasvalue = 0;
} //end if
break;
} //end case
default:
{
SourceError( source, "unknown %s in #if/#elif", t->string );
error = 1;
break;
} //end default
} //end switch
if ( error ) {
break;
}
} //end for
if ( !error ) {
if ( !lastwasvalue ) {
SourceError( source, "trailing operator in #if/#elif" );
error = 1;
} //end if
else if ( parentheses ) {
SourceError( source, "too many ( in #if/#elif" );
error = 1;
} //end else if
} //end if
//
gotquestmarkvalue = qfalse;
questmarkintvalue = 0;
questmarkfloatvalue = 0;
//while there are operators
while ( !error && firstoperator )
{
v = firstvalue;
for ( o = firstoperator; o->next; o = o->next )
{
//if the current operator is nested deeper in parentheses
//than the next operator
if ( o->parentheses > o->next->parentheses ) {
break;
}
//if the current and next operator are nested equally deep in parentheses
if ( o->parentheses == o->next->parentheses ) {
//if the priority of the current operator is equal or higher
//than the priority of the next operator
if ( o->priority >= o->next->priority ) {
break;
}
} //end if
//if the arity of the operator isn't equal to 1
if ( o->operator != P_LOGIC_NOT
&& o->operator != P_BIN_NOT ) {
v = v->next;
}
//if there's no value or no next value
if ( !v ) {
SourceError( source, "mising values in #if/#elif" );
error = 1;
break;
} //end if
} //end for
if ( error ) {
break;
}
v1 = v;
v2 = v->next;
#ifdef DEBUG_EVAL
if ( integer ) {
Log_Write( "operator %s, value1 = %d", PunctuationFromNum( source->scriptstack, o->operator ), v1->intvalue );
if ( v2 ) {
Log_Write( "value2 = %d", v2->intvalue );
}
} //end if
else
{
Log_Write( "operator %s, value1 = %f", PunctuationFromNum( source->scriptstack, o->operator ), v1->floatvalue );
if ( v2 ) {
Log_Write( "value2 = %f", v2->floatvalue );
}
} //end else
#endif //DEBUG_EVAL
switch ( o->operator )
{
case P_LOGIC_NOT: v1->intvalue = !v1->intvalue;
v1->floatvalue = !v1->floatvalue; break;
case P_BIN_NOT: v1->intvalue = ~v1->intvalue;
break;
case P_MUL: v1->intvalue *= v2->intvalue;
v1->floatvalue *= v2->floatvalue; break;
case P_DIV: v1->intvalue /= v2->intvalue;
v1->floatvalue /= v2->floatvalue; break;
case P_MOD: v1->intvalue %= v2->intvalue;
break;
case P_ADD: v1->intvalue += v2->intvalue;
v1->floatvalue += v2->floatvalue; break;
case P_SUB: v1->intvalue -= v2->intvalue;
v1->floatvalue -= v2->floatvalue; break;
case P_LOGIC_AND: v1->intvalue = v1->intvalue && v2->intvalue;
v1->floatvalue = v1->floatvalue && v2->floatvalue; break;
case P_LOGIC_OR: v1->intvalue = v1->intvalue || v2->intvalue;
v1->floatvalue = v1->floatvalue || v2->floatvalue; break;
case P_LOGIC_GEQ: v1->intvalue = v1->intvalue >= v2->intvalue;
v1->floatvalue = v1->floatvalue >= v2->floatvalue; break;
case P_LOGIC_LEQ: v1->intvalue = v1->intvalue <= v2->intvalue;
v1->floatvalue = v1->floatvalue <= v2->floatvalue; break;
case P_LOGIC_EQ: v1->intvalue = v1->intvalue == v2->intvalue;
v1->floatvalue = v1->floatvalue == v2->floatvalue; break;
case P_LOGIC_UNEQ: v1->intvalue = v1->intvalue != v2->intvalue;
v1->floatvalue = v1->floatvalue != v2->floatvalue; break;
case P_LOGIC_GREATER: v1->intvalue = v1->intvalue > v2->intvalue;
v1->floatvalue = v1->floatvalue > v2->floatvalue; break;
case P_LOGIC_LESS: v1->intvalue = v1->intvalue < v2->intvalue;
v1->floatvalue = v1->floatvalue < v2->floatvalue; break;
case P_RSHIFT: v1->intvalue >>= v2->intvalue;
break;
case P_LSHIFT: v1->intvalue <<= v2->intvalue;
break;
case P_BIN_AND: v1->intvalue &= v2->intvalue;
break;
case P_BIN_OR: v1->intvalue |= v2->intvalue;
break;
case P_BIN_XOR: v1->intvalue ^= v2->intvalue;
break;
case P_COLON:
{
if ( !gotquestmarkvalue ) {
SourceError( source, ": without ? in #if/#elif" );
error = 1;
break;
} //end if
if ( integer ) {
if ( !questmarkintvalue ) {
v1->intvalue = v2->intvalue;
}
} //end if
else
{
if ( !questmarkfloatvalue ) {
v1->floatvalue = v2->floatvalue;
}
} //end else
gotquestmarkvalue = qfalse;
break;
} //end case
case P_QUESTIONMARK:
{
if ( gotquestmarkvalue ) {
SourceError( source, "? after ? in #if/#elif" );
error = 1;
break;
} //end if
questmarkintvalue = v1->intvalue;
questmarkfloatvalue = v1->floatvalue;
gotquestmarkvalue = qtrue;
break;
} //end if
} //end switch
#ifdef DEBUG_EVAL
if ( integer ) {
Log_Write( "result value = %d", v1->intvalue );
}
else { Log_Write( "result value = %f", v1->floatvalue );}
#endif //DEBUG_EVAL
if ( error ) {
break;
}
lastoperatortype = o->operator;
//if not an operator with arity 1
if ( o->operator != P_LOGIC_NOT
&& o->operator != P_BIN_NOT ) {
//remove the second value if not question mark operator
if ( o->operator != P_QUESTIONMARK ) {
v = v->next;
}
//
if ( v->prev ) {
v->prev->next = v->next;
}
else { firstvalue = v->next;}
if ( v->next ) {
v->next->prev = v->prev;
}
else { lastvalue = v->prev;}
//FreeMemory(v);
FreeValue( v );
} //end if
//remove the operator
if ( o->prev ) {
o->prev->next = o->next;
}
else { firstoperator = o->next;}
if ( o->next ) {
o->next->prev = o->prev;
}
else { lastoperator = o->prev;}
//FreeMemory(o);
FreeOperator( o );
} //end while
if ( firstvalue ) {
if ( intvalue ) {
*intvalue = firstvalue->intvalue;
}
if ( floatvalue ) {
*floatvalue = firstvalue->floatvalue;
}
} //end if
for ( o = firstoperator; o; o = lastoperator )
{
lastoperator = o->next;
//FreeMemory(o);
FreeOperator( o );
} //end for
for ( v = firstvalue; v; v = lastvalue )
{
lastvalue = v->next;
//FreeMemory(v);
FreeValue( v );
} //end for
if ( !error ) {
return qtrue;
}
if ( intvalue ) {
*intvalue = 0;
}
if ( floatvalue ) {
*floatvalue = 0;
}
return qfalse;
} //end of the function PC_EvaluateTokens
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Evaluate( source_t *source, signed long int *intvalue,
double *floatvalue, int integer )
{
token_t token, *firsttoken, *lasttoken;
token_t *t, *nexttoken;
define_t *define;
int defined = qfalse;
if ( intvalue ) {
*intvalue = 0;
}
if ( floatvalue ) {
*floatvalue = 0;
}
//
if ( !PC_ReadLine( source, &token ) ) {
SourceError( source, "no value after #if/#elif" );
return qfalse;
} //end if
firsttoken = NULL;
lasttoken = NULL;
do
{
//if the token is a name
if ( token.type == TT_NAME ) {
if ( defined ) {
defined = qfalse;
t = PC_CopyToken( &token );
t->next = NULL;
if ( lasttoken ) {
lasttoken->next = t;
} else { firsttoken = t;}
lasttoken = t;
} //end if
else if ( !strcmp( token.string, "defined" ) ) {
defined = qtrue;
t = PC_CopyToken( &token );
t->next = NULL;
if ( lasttoken ) {
lasttoken->next = t;
} else { firsttoken = t;}
lasttoken = t;
} //end if
else
{
//then it must be a define
#if DEFINEHASHING
define = PC_FindHashedDefine( source->definehash, token.string );
#else
define = PC_FindDefine( source->defines, token.string );
#endif //DEFINEHASHING
if ( !define ) {
SourceError( source, "can't evaluate %s, not defined", token.string );
return qfalse;
} //end if
if ( !PC_ExpandDefineIntoSource( source, define ) ) {
return qfalse;
}
} //end else
} //end if
//if the token is a number or a punctuation
else if ( token.type == TT_NUMBER || token.type == TT_PUNCTUATION ) {
t = PC_CopyToken( &token );
t->next = NULL;
if ( lasttoken ) {
lasttoken->next = t;
} else { firsttoken = t;}
lasttoken = t;
} //end else
else //can't evaluate the token
{
SourceError( source, "can't evaluate %s", token.string );
return qfalse;
} //end else
}
while ( PC_ReadLine( source, &token ) );
//
if ( !PC_EvaluateTokens( source, firsttoken, intvalue, floatvalue, integer ) ) {
return qfalse;
}
//
#ifdef DEBUG_EVAL
Log_Write( "eval:" );
#endif //DEBUG_EVAL
for ( t = firsttoken; t; t = nexttoken )
{
#ifdef DEBUG_EVAL
Log_Write( " %s", t->string );
#endif //DEBUG_EVAL
nexttoken = t->next;
PC_FreeToken( t );
} //end for
#ifdef DEBUG_EVAL
if ( integer ) {
Log_Write( "eval result: %d", *intvalue );
}
else { Log_Write( "eval result: %f", *floatvalue );}
#endif //DEBUG_EVAL
//
return qtrue;
} //end of the function PC_Evaluate
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_DollarEvaluate( source_t *source, signed long int *intvalue,
double *floatvalue, int integer )
{
int indent, defined = qfalse;
token_t token, *firsttoken, *lasttoken;
token_t *t, *nexttoken;
define_t *define;
if ( intvalue ) {
*intvalue = 0;
}
if ( floatvalue ) {
*floatvalue = 0;
}
//
if ( !PC_ReadSourceToken( source, &token ) ) {
SourceError( source, "no leading ( after $evalint/$evalfloat" );
return qfalse;
} //end if
if ( !PC_ReadSourceToken( source, &token ) ) {
SourceError( source, "nothing to evaluate" );
return qfalse;
} //end if
indent = 1;
firsttoken = NULL;
lasttoken = NULL;
do
{
//if the token is a name
if ( token.type == TT_NAME ) {
if ( defined ) {
defined = qfalse;
t = PC_CopyToken( &token );
t->next = NULL;
if ( lasttoken ) {
lasttoken->next = t;
}
else { firsttoken = t;}
lasttoken = t;
} //end if
else if ( !strcmp( token.string, "defined" ) ) {
defined = qtrue;
t = PC_CopyToken( &token );
t->next = NULL;
if ( lasttoken ) {
lasttoken->next = t;
}
else { firsttoken = t;}
lasttoken = t;
} //end if
else
{
//then it must be a define
#if DEFINEHASHING
define = PC_FindHashedDefine( source->definehash, token.string );
#else
define = PC_FindDefine( source->defines, token.string );
#endif //DEFINEHASHING
if ( !define ) {
SourceError( source, "can't evaluate %s, not defined", token.string );
return qfalse;
} //end if
if ( !PC_ExpandDefineIntoSource( source, define ) ) {
return qfalse;
}
} //end else
} //end if
//if the token is a number or a punctuation
else if ( token.type == TT_NUMBER || token.type == TT_PUNCTUATION )
{
if ( *token.string == '(' ) {
indent++;
} else if ( *token.string == ')' ) {
indent--;
}
if ( indent <= 0 ) {
break;
}
t = PC_CopyToken( &token );
t->next = NULL;
if ( lasttoken ) {
lasttoken->next = t;
}
else { firsttoken = t;}
lasttoken = t;
} //end else
else //can't evaluate the token
{
SourceError( source, "can't evaluate %s", token.string );
return qfalse;
} //end else
}
while ( PC_ReadSourceToken( source, &token ) );
//
if ( !PC_EvaluateTokens( source, firsttoken, intvalue, floatvalue, integer ) ) {
return qfalse;
}
//
#ifdef DEBUG_EVAL
Log_Write( "$eval:" );
#endif //DEBUG_EVAL
for ( t = firsttoken; t; t = nexttoken )
{
#ifdef DEBUG_EVAL
Log_Write( " %s", t->string );
#endif //DEBUG_EVAL
nexttoken = t->next;
PC_FreeToken( t );
} //end for
#ifdef DEBUG_EVAL
if ( integer ) {
Log_Write( "$eval result: %d", *intvalue );
} else { Log_Write( "$eval result: %f", *floatvalue );}
#endif //DEBUG_EVAL
//
return qtrue;
} //end of the function PC_DollarEvaluate
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_elif( source_t *source )
{
signed long int value;
int type, skip;
PC_PopIndent( source, &type, &skip );
if ( !type || type == INDENT_ELSE ) {
SourceError( source, "misplaced #elif" );
return qfalse;
} //end if
if ( !PC_Evaluate( source, &value, NULL, qtrue ) ) {
return qfalse;
}
skip = ( value == 0 );
PC_PushIndent( source, INDENT_ELIF, skip );
return qtrue;
} //end of the function PC_Directive_elif
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_if( source_t *source )
{
signed long int value;
int skip;
if ( !PC_Evaluate( source, &value, NULL, qtrue ) ) {
return qfalse;
}
skip = ( value == 0 );
PC_PushIndent( source, INDENT_IF, skip );
return qtrue;
} //end of the function PC_Directive
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_line( source_t *source )
{
SourceError( source, "#line directive not supported" );
return qfalse;
} //end of the function PC_Directive_line
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_error( source_t *source )
{
token_t token;
strcpy( token.string, "" );
PC_ReadSourceToken( source, &token );
SourceError( source, "#error directive: %s", token.string );
return qfalse;
} //end of the function PC_Directive_error
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_pragma( source_t *source )
{
token_t token;
SourceWarning( source, "#pragma directive not supported" );
while ( PC_ReadLine( source, &token ) ) ;
return qtrue;
} //end of the function PC_Directive_pragma
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void UnreadSignToken( source_t *source )
{
token_t token;
token.line = source->scriptstack->line;
token.whitespace_p = source->scriptstack->script_p;
token.endwhitespace_p = source->scriptstack->script_p;
token.linescrossed = 0;
strcpy( token.string, "-" );
token.type = TT_PUNCTUATION;
token.subtype = P_SUB;
PC_UnreadSourceToken( source, &token );
} //end of the function UnreadSignToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_eval( source_t *source )
{
signed long int value;
token_t token;
if ( !PC_Evaluate( source, &value, NULL, qtrue ) ) {
return qfalse;
}
//
token.line = source->scriptstack->line;
token.whitespace_p = source->scriptstack->script_p;
token.endwhitespace_p = source->scriptstack->script_p;
token.linescrossed = 0;
sprintf( token.string, "%d", abs( value ) );
token.type = TT_NUMBER;
token.subtype = TT_INTEGER | TT_LONG | TT_DECIMAL;
PC_UnreadSourceToken( source, &token );
if ( value < 0 ) {
UnreadSignToken( source );
}
return qtrue;
} //end of the function PC_Directive_eval
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_Directive_evalfloat( source_t *source )
{
double value;
token_t token;
if ( !PC_Evaluate( source, NULL, &value, qfalse ) ) {
return qfalse;
}
token.line = source->scriptstack->line;
token.whitespace_p = source->scriptstack->script_p;
token.endwhitespace_p = source->scriptstack->script_p;
token.linescrossed = 0;
sprintf( token.string, "%1.2f", fabs( value ) );
token.type = TT_NUMBER;
token.subtype = TT_FLOAT | TT_LONG | TT_DECIMAL;
PC_UnreadSourceToken( source, &token );
if ( value < 0 ) {
UnreadSignToken( source );
}
return qtrue;
} //end of the function PC_Directive_evalfloat
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
directive_t directives[20] =
{
{"if", PC_Directive_if},
{"ifdef", PC_Directive_ifdef},
{"ifndef", PC_Directive_ifndef},
{"elif", PC_Directive_elif},
{"else", PC_Directive_else},
{"endif", PC_Directive_endif},
{"include", PC_Directive_include},
{"define", PC_Directive_define},
{"undef", PC_Directive_undef},
{"line", PC_Directive_line},
{"error", PC_Directive_error},
{"pragma", PC_Directive_pragma},
{"eval", PC_Directive_eval},
{"evalfloat", PC_Directive_evalfloat},
{NULL, NULL}
};
int PC_ReadDirective( source_t *source )
{
token_t token;
int i;
//read the directive name
if ( !PC_ReadSourceToken( source, &token ) ) {
SourceError( source, "found # without name" );
return qfalse;
} //end if
//directive name must be on the same line
if ( token.linescrossed > 0 ) {
PC_UnreadSourceToken( source, &token );
SourceError( source, "found # at end of line" );
return qfalse;
} //end if
//if if is a name
if ( token.type == TT_NAME ) {
//find the precompiler directive
for ( i = 0; directives[i].name; i++ )
{
if ( !strcmp( directives[i].name, token.string ) ) {
return directives[i].func( source );
} //end if
} //end for
} //end if
SourceError( source, "unknown precompiler directive %s", token.string );
return qfalse;
} //end of the function PC_ReadDirective
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_DollarDirective_evalint( source_t *source )
{
signed long int value;
token_t token;
if ( !PC_DollarEvaluate( source, &value, NULL, qtrue ) ) {
return qfalse;
}
//
token.line = source->scriptstack->line;
token.whitespace_p = source->scriptstack->script_p;
token.endwhitespace_p = source->scriptstack->script_p;
token.linescrossed = 0;
sprintf( token.string, "%d", abs( value ) );
token.type = TT_NUMBER;
token.subtype = TT_INTEGER | TT_LONG | TT_DECIMAL;
#ifdef NUMBERVALUE
token.intvalue = value;
token.floatvalue = value;
#endif //NUMBERVALUE
PC_UnreadSourceToken( source, &token );
if ( value < 0 ) {
UnreadSignToken( source );
}
return qtrue;
} //end of the function PC_DollarDirective_evalint
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_DollarDirective_evalfloat( source_t *source )
{
double value;
token_t token;
if ( !PC_DollarEvaluate( source, NULL, &value, qfalse ) ) {
return qfalse;
}
token.line = source->scriptstack->line;
token.whitespace_p = source->scriptstack->script_p;
token.endwhitespace_p = source->scriptstack->script_p;
token.linescrossed = 0;
sprintf( token.string, "%1.2f", fabs( value ) );
token.type = TT_NUMBER;
token.subtype = TT_FLOAT | TT_LONG | TT_DECIMAL;
#ifdef NUMBERVALUE
token.intvalue = (unsigned long) value;
token.floatvalue = value;
#endif //NUMBERVALUE
PC_UnreadSourceToken( source, &token );
if ( value < 0 ) {
UnreadSignToken( source );
}
return qtrue;
} //end of the function PC_DollarDirective_evalfloat
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
directive_t dollardirectives[20] =
{
{"evalint", PC_DollarDirective_evalint},
{"evalfloat", PC_DollarDirective_evalfloat},
{NULL, NULL}
};
int PC_ReadDollarDirective( source_t *source )
{
token_t token;
int i;
//read the directive name
if ( !PC_ReadSourceToken( source, &token ) ) {
SourceError( source, "found $ without name" );
return qfalse;
} //end if
//directive name must be on the same line
if ( token.linescrossed > 0 ) {
PC_UnreadSourceToken( source, &token );
SourceError( source, "found $ at end of line" );
return qfalse;
} //end if
//if if is a name
if ( token.type == TT_NAME ) {
//find the precompiler directive
for ( i = 0; dollardirectives[i].name; i++ )
{
if ( !strcmp( dollardirectives[i].name, token.string ) ) {
return dollardirectives[i].func( source );
} //end if
} //end for
} //end if
PC_UnreadSourceToken( source, &token );
SourceError( source, "unknown precompiler directive %s", token.string );
return qfalse;
} //end of the function PC_ReadDollarDirective
#ifdef QUAKEC
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int BuiltinFunction( source_t *source )
{
token_t token;
if ( !PC_ReadSourceToken( source, &token ) ) {
return qfalse;
}
if ( token.type == TT_NUMBER ) {
PC_UnreadSourceToken( source, &token );
return qtrue;
} //end if
else
{
PC_UnreadSourceToken( source, &token );
return qfalse;
} //end else
} //end of the function BuiltinFunction
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int QuakeCMacro( source_t *source )
{
int i;
token_t token;
if ( !PC_ReadSourceToken( source, &token ) ) {
return qtrue;
}
if ( token.type != TT_NAME ) {
PC_UnreadSourceToken( source, &token );
return qtrue;
} //end if
//find the precompiler directive
for ( i = 0; dollardirectives[i].name; i++ )
{
if ( !strcmp( dollardirectives[i].name, token.string ) ) {
PC_UnreadSourceToken( source, &token );
return qfalse;
} //end if
} //end for
PC_UnreadSourceToken( source, &token );
return qtrue;
} //end of the function QuakeCMacro
#endif //QUAKEC
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ReadToken( source_t *source, token_t *token )
{
define_t *define;
while ( 1 )
{
if ( !PC_ReadSourceToken( source, token ) ) {
return qfalse;
}
//check for precompiler directives
if ( token->type == TT_PUNCTUATION && *token->string == '#' ) {
/* // Knightmare- re-enabled this
#ifdef SCREWUP // Ridah, skip all # directives
while ( PC_ReadLine( source, token ) ) ;
continue;
#endif // SCREWUP
*/
#ifdef QUAKEC
if ( !BuiltinFunction( source ) )
#endif //QUAKC
{
//read the precompiler directive
if ( !PC_ReadDirective( source ) ) {
// Knightmare- debug output
printf("PC_ReadToken: PC_ReadDirective failed on directive %s on line %i in file %s\n", token->string, token->line, source->filename);
return qfalse;
}
continue;
} //end if
} //end if
if ( token->type == TT_PUNCTUATION && *token->string == '$' ) {
#ifdef QUAKEC
if ( !QuakeCMacro( source ) )
#endif //QUAKEC
{
//read the precompiler directive
if ( !PC_ReadDollarDirective( source ) ) {
// Knightmare- debug output
printf("PC_ReadToken: PC_ReadDollarDirective failed on directive %s on line %i in file %s\n", token->string, token->line, source->filename);
return qfalse;
}
continue;
} //end if
} //end if
//if skipping source because of conditional compilation
if ( source->skip ) {
continue;
}
//if the token is a name
if ( token->type == TT_NAME ) {
//check if the name is a define macro
#if DEFINEHASHING
define = PC_FindHashedDefine( source->definehash, token->string );
#else
define = PC_FindDefine( source->defines, token->string );
#endif //DEFINEHASHING
//if it is a define macro
if ( define ) {
#ifdef SCREWUP
// Knightmare- skip defines w/ parameters
// They're not relevant to extracting functions & global types
// And are hard to parse.
if (!define->builtin && define->numparms) {
continue;
}
#endif
//expand the defined macro
if ( !PC_ExpandDefineIntoSource( source, define ) ) {
// Knightmare- debug output
printf("PC_ReadToken: PC_ExpandDefineIntoSource failed on define %s on line %i in file %s\n", define->name, token->line, source->filename);
return qfalse;
}
continue;
} //end if
} //end if
//copy token for unreading
memcpy( &source->token, token, sizeof( token_t ) );
//found a token
return qtrue;
} //end while
} //end of the function PC_ReadToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ExpectTokenString( source_t *source, char *string )
{
token_t token;
if ( !PC_ReadToken( source, &token ) ) {
SourceError( source, "couldn't find expected %s", string );
return qfalse;
} //end if
if ( strcmp( token.string, string ) ) {
SourceError( source, "expected %s, found %s", string, token.string );
return qfalse;
} //end if
return qtrue;
} //end of the function PC_ExpectTokenString
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ExpectTokenType( source_t *source, int type, int subtype, token_t *token )
{
char str[MAX_TOKEN];
if ( !PC_ReadToken( source, token ) ) {
SourceError( source, "couldn't read expected token" );
return qfalse;
} //end if
if ( token->type != type ) {
strcpy( str, "" );
if ( type == TT_STRING ) {
strcpy( str, "string" );
}
if ( type == TT_LITERAL ) {
strcpy( str, "literal" );
}
if ( type == TT_NUMBER ) {
strcpy( str, "number" );
}
if ( type == TT_NAME ) {
strcpy( str, "name" );
}
if ( type == TT_PUNCTUATION ) {
strcpy( str, "punctuation" );
}
SourceError( source, "expected a %s, found %s", str, token->string );
return qfalse;
} //end if
if ( token->type == TT_NUMBER ) {
if ( ( token->subtype & subtype ) != subtype ) {
if ( subtype & TT_DECIMAL ) {
strcpy( str, "decimal" );
}
if ( subtype & TT_HEX ) {
strcpy( str, "hex" );
}
if ( subtype & TT_OCTAL ) {
strcpy( str, "octal" );
}
if ( subtype & TT_BINARY ) {
strcpy( str, "binary" );
}
if ( subtype & TT_LONG ) {
strcat( str, " long" );
}
if ( subtype & TT_UNSIGNED ) {
strcat( str, " unsigned" );
}
if ( subtype & TT_FLOAT ) {
strcat( str, " float" );
}
if ( subtype & TT_INTEGER ) {
strcat( str, " integer" );
}
SourceError( source, "expected %s, found %s", str, token->string );
return qfalse;
} //end if
} //end if
else if ( token->type == TT_PUNCTUATION ) {
if ( token->subtype != subtype ) {
SourceError( source, "found %s", token->string );
return qfalse;
} //end if
} //end else if
return qtrue;
} //end of the function PC_ExpectTokenType
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_ExpectAnyToken( source_t *source, token_t *token )
{
if ( !PC_ReadToken( source, token ) ) {
SourceError( source, "couldn't read expected token" );
return qfalse;
} //end if
else
{
return qtrue;
} //end else
} //end of the function PC_ExpectAnyToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_CheckTokenString( source_t *source, char *string )
{
token_t tok;
if ( !PC_ReadToken( source, &tok ) ) {
return qfalse;
}
//if the token is available
if ( !strcmp( tok.string, string ) ) {
return qtrue;
}
//
PC_UnreadSourceToken( source, &tok );
return qfalse;
} //end of the function PC_CheckTokenString
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_CheckTokenType( source_t *source, int type, int subtype, token_t *token )
{
token_t tok;
if ( !PC_ReadToken( source, &tok ) ) {
return qfalse;
}
//if the type matches
if ( tok.type == type &&
( tok.subtype & subtype ) == subtype ) {
memcpy( token, &tok, sizeof( token_t ) );
return qtrue;
} //end if
//
PC_UnreadSourceToken( source, &tok );
return qfalse;
} //end of the function PC_CheckTokenType
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
int PC_SkipUntilString( source_t *source, char *string )
{
token_t token;
while ( PC_ReadToken( source, &token ) )
{
if ( !strcmp( token.string, string ) ) {
return qtrue;
}
} //end while
return qfalse;
} //end of the function PC_SkipUntilString
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_UnreadLastToken( source_t *source )
{
PC_UnreadSourceToken( source, &source->token );
} //end of the function PC_UnreadLastToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_UnreadToken( source_t *source, token_t *token )
{
PC_UnreadSourceToken( source, token );
} //end of the function PC_UnreadToken
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_SetIncludePath( source_t *source, char *path )
{
strncpy( source->includepath, path, _MAX_PATH );
//add trailing path seperator
if ( source->includepath[strlen( source->includepath ) - 1] != '\\' &&
source->includepath[strlen( source->includepath ) - 1] != '/' ) {
strcat( source->includepath, PATHSEPERATOR_STR );
} //end if
} //end of the function PC_SetIncludePath
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void PC_SetPunctuations( source_t *source, punctuation_t *p )
{
source->punctuations = p;
} //end of the function PC_SetPunctuations
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
source_t *LoadSourceFile( char *filename )
{
source_t *source;
script_t *script;
PC_InitTokenHeap();
script = LoadScriptFile( filename );
if ( !script ) {
return NULL;
}
script->next = NULL;
source = (source_t *) GetMemory( sizeof( source_t ) );
memset( source, 0, sizeof( source_t ) );
strncpy( source->filename, filename, _MAX_PATH );
source->scriptstack = script;
source->tokens = NULL;
source->defines = NULL;
source->indentstack = NULL;
source->skip = 0;
#if DEFINEHASHING
source->definehash = GetClearedMemory( DEFINEHASHSIZE * sizeof( define_t * ) );
#endif //DEFINEHASHING
PC_AddGlobalDefinesToSource( source );
return source;
} //end of the function LoadSourceFile
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
source_t *LoadSourceMemory( char *ptr, int length, char *name )
{
source_t *source;
script_t *script;
PC_InitTokenHeap();
script = LoadScriptMemory( ptr, length, name );
if ( !script ) {
return NULL;
}
script->next = NULL;
source = (source_t *) GetMemory( sizeof( source_t ) );
memset( source, 0, sizeof( source_t ) );
strncpy( source->filename, name, _MAX_PATH );
source->scriptstack = script;
source->tokens = NULL;
source->defines = NULL;
source->indentstack = NULL;
source->skip = 0;
#if DEFINEHASHING
source->definehash = GetClearedMemory( DEFINEHASHSIZE * sizeof( define_t * ) );
#endif //DEFINEHASHING
PC_AddGlobalDefinesToSource( source );
return source;
} //end of the function LoadSourceMemory
//============================================================================
//
// Parameter: -
// Returns: -
// Changes Globals: -
//============================================================================
void FreeSource( source_t *source )
{
script_t *script;
token_t *token;
define_t *define;
indent_t *indent;
int i;
//PC_PrintDefineHashTable(source->definehash);
//free all the scripts
while ( source->scriptstack )
{
script = source->scriptstack;
source->scriptstack = source->scriptstack->next;
FreeScript( script );
} //end for
//free all the tokens
while ( source->tokens )
{
token = source->tokens;
source->tokens = source->tokens->next;
PC_FreeToken( token );
} //end for
#if DEFINEHASHING
for ( i = 0; i < DEFINEHASHSIZE; i++ )
{
while ( source->definehash[i] )
{
define = source->definehash[i];
source->definehash[i] = source->definehash[i]->hashnext;
PC_FreeDefine( define );
} //end while
} //end for
#else //DEFINEHASHING
//free all defines
while ( source->defines )
{
define = source->defines;
source->defines = source->defines->next;
PC_FreeDefine( define );
} //end for
#endif //DEFINEHASHING
//free all indents
while ( source->indentstack )
{
indent = source->indentstack;
source->indentstack = source->indentstack->next;
FreeMemory( indent );
} //end for
#if DEFINEHASHING
//
if ( source->definehash ) {
FreeMemory( source->definehash );
}
#endif //DEFINEHASHING
//free the source itself
FreeMemory( source );
} //end of the function FreeSource
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