doom3-bfg/neo/idlib/Parser.cpp
Daniel Gibson ee88148bd1 eliminate more longs
for 64bit compatibility.
2012-12-13 01:28:41 +01:00

3852 lines
74 KiB
C++

/*
===========================================================================
Doom 3 BFG Edition GPL Source Code
Copyright (C) 1993-2012 id Software LLC, a ZeniMax Media company.
This file is part of the Doom 3 BFG Edition GPL Source Code ("Doom 3 BFG Edition Source Code").
Doom 3 BFG Edition 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.
Doom 3 BFG Edition 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 Doom 3 BFG Edition Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 BFG Edition 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 Doom 3 BFG Edition 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.
===========================================================================
*/
#include "precompiled.h"
#pragma hdrstop
//#define DEBUG_EVAL
#define MAX_DEFINEPARMS 128
#define DEFINEHASHSIZE 2048
#define TOKEN_FL_RECURSIVE_DEFINE 1
define_t* idParser::globaldefines;
/*
================
idParser::SetBaseFolder
================
*/
void idParser::SetBaseFolder( const char* path )
{
idLexer::SetBaseFolder( path );
}
/*
================
idParser::AddGlobalDefine
================
*/
int idParser::AddGlobalDefine( const char* string )
{
define_t* define;
define = idParser::DefineFromString( string );
if( !define )
{
return false;
}
define->next = globaldefines;
globaldefines = define;
return true;
}
/*
================
idParser::RemoveGlobalDefine
================
*/
int idParser::RemoveGlobalDefine( const char* name )
{
define_t* d, *prev;
for( prev = NULL, d = idParser::globaldefines; d; prev = d, d = d->next )
{
if( !strcmp( d->name, name ) )
{
break;
}
}
if( d )
{
if( prev )
{
prev->next = d->next;
}
else
{
idParser::globaldefines = d->next;
}
idParser::FreeDefine( d );
return true;
}
return false;
}
/*
================
idParser::RemoveAllGlobalDefines
================
*/
void idParser::RemoveAllGlobalDefines()
{
define_t* define;
for( define = globaldefines; define; define = globaldefines )
{
globaldefines = globaldefines->next;
idParser::FreeDefine( define );
}
}
/*
===============================================================================
idParser
===============================================================================
*/
/*
================
idParser::PrintDefine
================
*/
void idParser::PrintDefine( define_t* define )
{
idLib::common->Printf( "define->name = %s\n", define->name );
idLib::common->Printf( "define->flags = %d\n", define->flags );
idLib::common->Printf( "define->builtin = %d\n", define->builtin );
idLib::common->Printf( "define->numparms = %d\n", define->numparms );
}
/*
================
PC_PrintDefineHashTable
================
* /
static 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);
}
Log_Write("\n");
}
}
*/
/*
================
PC_NameHash
================
*/
ID_INLINE int PC_NameHash( const char* name )
{
int hash, i;
hash = 0;
for( i = 0; name[i] != '\0'; i++ )
{
hash += name[i] * ( 119 + i );
}
hash = ( hash ^ ( hash >> 10 ) ^ ( hash >> 20 ) ) & ( DEFINEHASHSIZE - 1 );
return hash;
}
/*
================
idParser::AddDefineToHash
================
*/
void idParser::AddDefineToHash( define_t* define, define_t** definehash )
{
int hash;
hash = PC_NameHash( define->name );
define->hashnext = definehash[hash];
definehash[hash] = define;
}
/*
================
FindHashedDefine
================
*/
define_t* idParser::FindHashedDefine( define_t** definehash, const 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;
}
}
return NULL;
}
/*
================
idParser::FindDefine
================
*/
define_t* idParser::FindDefine( define_t* defines, const char* name )
{
define_t* d;
for( d = defines; d; d = d->next )
{
if( !strcmp( d->name, name ) )
{
return d;
}
}
return NULL;
}
/*
================
idParser::FindDefineParm
================
*/
int idParser::FindDefineParm( define_t* define, const char* name )
{
idToken* p;
int i;
i = 0;
for( p = define->parms; p; p = p->next )
{
if( ( *p ) == name )
{
return i;
}
i++;
}
return -1;
}
/*
================
idParser::CopyDefine
================
*/
define_t* idParser::CopyDefine( define_t* define )
{
define_t* newdefine;
idToken* token, *newtoken, *lasttoken;
newdefine = ( define_t* ) Mem_Alloc( sizeof( define_t ) + strlen( define->name ) + 1, TAG_IDLIB_PARSER );
//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 = new( TAG_IDLIB_PARSER ) idToken( token );
newtoken->next = NULL;
if( lasttoken ) lasttoken->next = newtoken;
else newdefine->tokens = newtoken;
lasttoken = newtoken;
}
//copy the define parameters
newdefine->parms = NULL;
for( lasttoken = NULL, token = define->parms; token; token = token->next )
{
newtoken = new( TAG_IDLIB_PARSER ) idToken( token );
newtoken->next = NULL;
if( lasttoken ) lasttoken->next = newtoken;
else newdefine->parms = newtoken;
lasttoken = newtoken;
}
return newdefine;
}
/*
================
idParser::FreeDefine
================
*/
void idParser::FreeDefine( define_t* define )
{
idToken* t, *next;
//free the define parameters
for( t = define->parms; t; t = next )
{
next = t->next;
delete t;
}
//free the define tokens
for( t = define->tokens; t; t = next )
{
next = t->next;
delete t;
}
//free the define
Mem_Free( define );
}
/*
================
idParser::DefineFromString
================
*/
define_t* idParser::DefineFromString( const char* string )
{
idParser src;
define_t* def;
if( !src.LoadMemory( string, strlen( string ), "*defineString" ) )
{
return NULL;
}
// create a define from the source
if( !src.Directive_define() )
{
src.FreeSource();
return NULL;
}
def = src.CopyFirstDefine();
src.FreeSource();
//if the define was created succesfully
return def;
}
/*
================
idParser::Error
================
*/
void idParser::Error( const char* str, ... ) const
{
char text[MAX_STRING_CHARS];
va_list ap;
va_start( ap, str );
vsprintf( text, str, ap );
va_end( ap );
if( idParser::scriptstack )
{
idParser::scriptstack->Error( text );
}
}
/*
================
idParser::Warning
================
*/
void idParser::Warning( const char* str, ... ) const
{
char text[MAX_STRING_CHARS];
va_list ap;
va_start( ap, str );
vsprintf( text, str, ap );
va_end( ap );
if( idParser::scriptstack )
{
idParser::scriptstack->Warning( text );
}
}
/*
================
idParser::PushIndent
================
*/
void idParser::PushIndent( int type, int skip )
{
indent_t* indent;
indent = ( indent_t* ) Mem_Alloc( sizeof( indent_t ), TAG_IDLIB_PARSER );
indent->type = type;
indent->script = idParser::scriptstack;
indent->skip = ( skip != 0 );
idParser::skip += indent->skip;
indent->next = idParser::indentstack;
idParser::indentstack = indent;
}
/*
================
idParser::PopIndent
================
*/
void idParser::PopIndent( int* type, int* skip )
{
indent_t* indent;
*type = 0;
*skip = 0;
indent = idParser::indentstack;
if( !indent ) return;
// must be an indent from the current script
if( idParser::indentstack->script != idParser::scriptstack )
{
return;
}
*type = indent->type;
*skip = indent->skip;
idParser::indentstack = idParser::indentstack->next;
idParser::skip -= indent->skip;
Mem_Free( indent );
}
/*
================
idParser::PushScript
================
*/
void idParser::PushScript( idLexer* script )
{
idLexer* s;
for( s = idParser::scriptstack; s; s = s->next )
{
if( !idStr::Icmp( s->GetFileName(), script->GetFileName() ) )
{
idParser::Warning( "'%s' recursively included", script->GetFileName() );
return;
}
}
//push the script on the script stack
script->next = idParser::scriptstack;
idParser::scriptstack = script;
}
/*
================
idParser::ReadSourceToken
================
*/
int idParser::ReadSourceToken( idToken* token )
{
idToken* t;
idLexer* script;
int type, skip, changedScript;
if( !idParser::scriptstack )
{
idLib::common->FatalError( "idParser::ReadSourceToken: not loaded" );
return false;
}
changedScript = 0;
// if there's no token already available
while( !idParser::tokens )
{
// if there's a token to read from the script
if( idParser::scriptstack->ReadToken( token ) )
{
token->linesCrossed += changedScript;
// set the marker based on the start of the token read in
if( !marker_p )
{
marker_p = token->whiteSpaceEnd_p;
}
return true;
}
// if at the end of the script
if( idParser::scriptstack->EndOfFile() )
{
// remove all indents of the script
while( idParser::indentstack && idParser::indentstack->script == idParser::scriptstack )
{
idParser::Warning( "missing #endif" );
idParser::PopIndent( &type, &skip );
}
changedScript = 1;
}
// if this was the initial script
if( !idParser::scriptstack->next )
{
return false;
}
// remove the script and return to the previous one
script = idParser::scriptstack;
idParser::scriptstack = idParser::scriptstack->next;
delete script;
}
// copy the already available token
*token = idParser::tokens;
// remove the token from the source
t = idParser::tokens;
assert( idParser::tokens != NULL );
idParser::tokens = idParser::tokens->next;
delete t;
return true;
}
/*
================
idParser::UnreadSourceToken
================
*/
int idParser::UnreadSourceToken( idToken* token )
{
idToken* t;
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = idParser::tokens;
idParser::tokens = t;
return true;
}
/*
================
idParser::ReadDefineParms
================
*/
int idParser::ReadDefineParms( define_t* define, idToken** parms, int maxparms )
{
define_t* newdefine;
idToken token, *t, *last;
int i, done, lastcomma, numparms, indent;
if( !idParser::ReadSourceToken( &token ) )
{
idParser::Error( "define '%s' missing parameters", define->name );
return false;
}
if( define->numparms > maxparms )
{
idParser::Error( "define with more than %d parameters", maxparms );
return false;
}
for( i = 0; i < define->numparms; i++ )
{
parms[i] = NULL;
}
// if no leading "("
if( token != "(" )
{
idParser::UnreadSourceToken( &token );
idParser::Error( "define '%s' missing parameters", define->name );
return false;
}
// read the define parameters
for( done = 0, numparms = 0, indent = 1; !done; )
{
if( numparms >= maxparms )
{
idParser::Error( "define '%s' with too many parameters", define->name );
return false;
}
parms[numparms] = NULL;
lastcomma = 1;
last = NULL;
while( !done )
{
if( !idParser::ReadSourceToken( &token ) )
{
idParser::Error( "define '%s' incomplete", define->name );
return false;
}
if( token == "," )
{
if( indent <= 1 )
{
if( lastcomma )
{
idParser::Warning( "too many comma's" );
}
if( numparms >= define->numparms )
{
idParser::Warning( "too many define parameters" );
}
lastcomma = 1;
break;
}
}
else if( token == "(" )
{
indent++;
}
else if( token == ")" )
{
indent--;
if( indent <= 0 )
{
if( !parms[define->numparms - 1] )
{
idParser::Warning( "too few define parameters" );
}
done = 1;
break;
}
}
else if( token.type == TT_NAME )
{
newdefine = FindHashedDefine( idParser::definehash, token.c_str() );
if( newdefine )
{
if( !idParser::ExpandDefineIntoSource( &token, newdefine ) )
{
return false;
}
continue;
}
}
lastcomma = 0;
if( numparms < define->numparms )
{
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = NULL;
if( last ) last->next = t;
else parms[numparms] = t;
last = t;
}
}
numparms++;
}
return true;
}
/*
================
idParser::StringizeTokens
================
*/
int idParser::StringizeTokens( idToken* tokens, idToken* token )
{
idToken* t;
token->type = TT_STRING;
token->whiteSpaceStart_p = NULL;
token->whiteSpaceEnd_p = NULL;
( *token ) = "";
for( t = tokens; t; t = t->next )
{
token->Append( t->c_str() );
}
return true;
}
/*
================
idParser::MergeTokens
================
*/
int idParser::MergeTokens( idToken* t1, idToken* t2 )
{
// merging of a name with a name or number
if( t1->type == TT_NAME && ( t2->type == TT_NAME || ( t2->type == TT_NUMBER && !( t2->subtype & TT_FLOAT ) ) ) )
{
t1->Append( t2->c_str() );
return true;
}
// merging of two strings
if( t1->type == TT_STRING && t2->type == TT_STRING )
{
t1->Append( t2->c_str() );
return true;
}
// merging of two numbers
if( t1->type == TT_NUMBER && t2->type == TT_NUMBER &&
!( t1->subtype & ( TT_HEX | TT_BINARY ) ) && !( t2->subtype & ( TT_HEX | TT_BINARY ) ) &&
( !( t1->subtype & TT_FLOAT ) || !( t2->subtype & TT_FLOAT ) ) )
{
t1->Append( t2->c_str() );
return true;
}
return false;
}
/*
================
idParser::AddBuiltinDefines
================
*/
void idParser::AddBuiltinDefines()
{
int i;
define_t* define;
struct builtin
{
const char* string;
int id;
} 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* ) Mem_Alloc( sizeof( define_t ) + strlen( builtin[i].string ) + 1, TAG_IDLIB_PARSER );
define->name = ( char* ) define + sizeof( define_t );
strcpy( define->name, builtin[i].string );
define->flags = DEFINE_FIXED;
define->builtin = builtin[i].id;
define->numparms = 0;
define->parms = NULL;
define->tokens = NULL;
// add the define to the source
AddDefineToHash( define, idParser::definehash );
}
}
/*
================
idParser::CopyFirstDefine
================
*/
define_t* idParser::CopyFirstDefine()
{
int i;
for( i = 0; i < DEFINEHASHSIZE; i++ )
{
if( idParser::definehash[i] )
{
return CopyDefine( idParser::definehash[i] );
}
}
return NULL;
}
static idStr PreProcessorDate()
{
time_t t = time( NULL );
char* curtime = ctime( &t );
if( idStr::Length( curtime ) < 24 )
{
return idStr( "*** BAD CURTIME ***" );
}
idStr str = "\"";
// skip DAY, extract MMM DD
for( int i = 4 ; i < 10 ; i++ )
{
str.Append( curtime[i] );
}
// skip time, extract space+YYYY
for( int i = 19 ; i < 24 ; i++ )
{
str.Append( curtime[i] );
}
str.Append( "\"" );
return str;
}
static idStr PreProcessorTime()
{
time_t t = time( NULL );
char* curtime = ctime( &t );
if( idStr::Length( curtime ) < 24 )
{
return idStr( "*** BAD CURTIME ***" );
}
idStr str = "\"";
for( int i = 11 ; i < 19 ; i++ )
{
str.Append( curtime[i] );
}
str.Append( "\"" );
return str;
}
CONSOLE_COMMAND( TestPreprocessorMacros, "check analyze warning", 0 )
{
idLib::Printf( "%s : %s\n", __DATE__, PreProcessorDate().c_str() );
idLib::Printf( "%s : %s\n", __TIME__, PreProcessorTime().c_str() );
}
/*
================
idParser::ExpandBuiltinDefine
================
*/
int idParser::ExpandBuiltinDefine( idToken* deftoken, define_t* define, idToken** firsttoken, idToken** lasttoken )
{
idToken* token;
char buf[MAX_STRING_CHARS];
token = new( TAG_IDLIB_PARSER ) idToken( deftoken );
switch( define->builtin )
{
case BUILTIN_LINE:
{
sprintf( buf, "%d", deftoken->line );
( *token ) = buf;
token->intvalue = deftoken->line;
token->floatvalue = deftoken->line;
token->type = TT_NUMBER;
token->subtype = TT_DECIMAL | TT_INTEGER | TT_VALUESVALID;
token->line = deftoken->line;
token->linesCrossed = deftoken->linesCrossed;
token->flags = 0;
*firsttoken = token;
*lasttoken = token;
break;
}
case BUILTIN_FILE:
{
( *token ) = idParser::scriptstack->GetFileName();
token->type = TT_NAME;
token->subtype = token->Length();
token->line = deftoken->line;
token->linesCrossed = deftoken->linesCrossed;
token->flags = 0;
*firsttoken = token;
*lasttoken = token;
break;
}
case BUILTIN_DATE:
{
*token = PreProcessorDate();
token->type = TT_STRING;
token->subtype = token->Length();
token->line = deftoken->line;
token->linesCrossed = deftoken->linesCrossed;
token->flags = 0;
*firsttoken = token;
*lasttoken = token;
break;
}
case BUILTIN_TIME:
{
*token = PreProcessorTime();
token->type = TT_STRING;
token->subtype = token->Length();
token->line = deftoken->line;
token->linesCrossed = deftoken->linesCrossed;
token->flags = 0;
*firsttoken = token;
*lasttoken = token;
break;
}
case BUILTIN_STDC:
{
idParser::Warning( "__STDC__ not supported\n" );
*firsttoken = NULL;
*lasttoken = NULL;
break;
}
default:
{
*firsttoken = NULL;
*lasttoken = NULL;
break;
}
}
return true;
}
/*
================
idParser::ExpandDefine
================
*/
int idParser::ExpandDefine( idToken* deftoken, define_t* define, idToken** firsttoken, idToken** lasttoken )
{
idToken* parms[MAX_DEFINEPARMS], *dt, *pt, *t;
idToken* t1, *t2, *first, *last, *nextpt, token;
int parmnum, i;
// if it is a builtin define
if( define->builtin )
{
return idParser::ExpandBuiltinDefine( deftoken, define, firsttoken, lasttoken );
}
// if the define has parameters
if( define->numparms )
{
if( !idParser::ReadDefineParms( define, parms, MAX_DEFINEPARMS ) )
{
return false;
}
#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->c_str() );
}
}
#endif //DEBUG_EVAL
}
// 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 = FindDefineParm( define, dt->c_str() );
}
// if it is a define parameter
if( parmnum >= 0 )
{
for( pt = parms[parmnum]; pt; pt = pt->next )
{
t = new( TAG_IDLIB_PARSER ) idToken( pt );
//add the token to the list
t->next = NULL;
if( last ) last->next = t;
else first = t;
last = t;
}
}
else
{
// if stringizing operator
if( ( *dt ) == "#" )
{
// the stringizing operator must be followed by a define parameter
if( dt->next )
{
parmnum = FindDefineParm( define, dt->next->c_str() );
}
else
{
parmnum = -1;
}
if( parmnum >= 0 )
{
// step over the stringizing operator
dt = dt->next;
// stringize the define parameter tokens
if( !idParser::StringizeTokens( parms[parmnum], &token ) )
{
idParser::Error( "can't stringize tokens" );
return false;
}
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->line = deftoken->line;
}
else
{
idParser::Warning( "stringizing operator without define parameter" );
continue;
}
}
else
{
t = new( TAG_IDLIB_PARSER ) idToken( dt );
t->line = deftoken->line;
}
// add the token to the list
t->next = NULL;
// the token being read from the define list should use the line number of
// the original file, not the header file
t->line = deftoken->line;
if( last ) last->next = t;
else first = t;
last = t;
}
}
// check for the merging operator
for( t = first; t; )
{
if( t->next )
{
// if the merging operator
if( ( *t->next ) == "##" )
{
t1 = t;
t2 = t->next->next;
if( t2 )
{
if( !idParser::MergeTokens( t1, t2 ) )
{
idParser::Error( "can't merge '%s' with '%s'", t1->c_str(), t2->c_str() );
return false;
}
delete t1->next;
t1->next = t2->next;
if( t2 == last ) last = t1;
delete t2;
continue;
}
}
}
t = t->next;
}
// 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;
delete pt;
}
}
return true;
}
/*
================
idParser::ExpandDefineIntoSource
================
*/
int idParser::ExpandDefineIntoSource( idToken* deftoken, define_t* define )
{
idToken* firsttoken, *lasttoken;
if( !idParser::ExpandDefine( deftoken, define, &firsttoken, &lasttoken ) )
{
return false;
}
// if the define is not empty
if( firsttoken && lasttoken )
{
firsttoken->linesCrossed += deftoken->linesCrossed;
lasttoken->next = idParser::tokens;
idParser::tokens = firsttoken;
}
return true;
}
/*
================
idParser::ReadLine
reads a token from the current line, continues reading on the next
line only if a backslash '\' is found
================
*/
int idParser::ReadLine( idToken* token )
{
int crossline;
crossline = 0;
do
{
if( !idParser::ReadSourceToken( token ) )
{
return false;
}
if( token->linesCrossed > crossline )
{
idParser::UnreadSourceToken( token );
return false;
}
crossline = 1;
}
while( ( *token ) == "\\" );
return true;
}
/*
================
idParser::Directive_include
================
*/
int idParser::Directive_include()
{
idLexer* script;
idToken token;
idStr path;
if( !idParser::ReadSourceToken( &token ) )
{
idParser::Error( "#include without file name" );
return false;
}
if( token.linesCrossed > 0 )
{
idParser::Error( "#include without file name" );
return false;
}
if( token.type == TT_STRING )
{
script = new( TAG_IDLIB_PARSER ) idLexer;
// try relative to the current file
path = scriptstack->GetFileName();
path.StripFilename();
path += "/";
path += token;
if( !script->LoadFile( path, OSPath ) )
{
// try absolute path
path = token;
if( !script->LoadFile( path, OSPath ) )
{
// try from the include path
path = includepath + token;
if( !script->LoadFile( path, OSPath ) )
{
delete script;
script = NULL;
}
}
}
}
else if( token.type == TT_PUNCTUATION && token == "<" )
{
path = idParser::includepath;
while( idParser::ReadSourceToken( &token ) )
{
if( token.linesCrossed > 0 )
{
idParser::UnreadSourceToken( &token );
break;
}
if( token.type == TT_PUNCTUATION && token == ">" )
{
break;
}
path += token;
}
if( token != ">" )
{
idParser::Warning( "#include missing trailing >" );
}
if( !path.Length() )
{
idParser::Error( "#include without file name between < >" );
return false;
}
if( idParser::flags & LEXFL_NOBASEINCLUDES )
{
return true;
}
script = new( TAG_IDLIB_PARSER ) idLexer;
if( !script->LoadFile( includepath + path, OSPath ) )
{
delete script;
script = NULL;
}
}
else
{
idParser::Error( "#include without file name" );
return false;
}
if( !script )
{
idParser::Error( "file '%s' not found", path.c_str() );
return false;
}
script->SetFlags( idParser::flags );
script->SetPunctuations( idParser::punctuations );
idParser::PushScript( script );
return true;
}
/*
================
idParser::Directive_undef
================
*/
int idParser::Directive_undef()
{
idToken token;
define_t* define, *lastdefine;
int hash;
//
if( !idParser::ReadLine( &token ) )
{
idParser::Error( "undef without name" );
return false;
}
if( token.type != TT_NAME )
{
idParser::UnreadSourceToken( &token );
idParser::Error( "expected name but found '%s'", token.c_str() );
return false;
}
hash = PC_NameHash( token.c_str() );
for( lastdefine = NULL, define = idParser::definehash[hash]; define; define = define->hashnext )
{
if( !strcmp( define->name, token.c_str() ) )
{
if( define->flags & DEFINE_FIXED )
{
idParser::Warning( "can't undef '%s'", token.c_str() );
}
else
{
if( lastdefine )
{
lastdefine->hashnext = define->hashnext;
}
else
{
idParser::definehash[hash] = define->hashnext;
}
FreeDefine( define );
}
break;
}
lastdefine = define;
}
return true;
}
/*
================
idParser::Directive_define
================
*/
int idParser::Directive_define()
{
idToken token, *t, *last;
define_t* define;
if( !idParser::ReadLine( &token ) )
{
idParser::Error( "#define without name" );
return false;
}
if( token.type != TT_NAME )
{
idParser::UnreadSourceToken( &token );
idParser::Error( "expected name after #define, found '%s'", token.c_str() );
return false;
}
// check if the define already exists
define = FindHashedDefine( idParser::definehash, token.c_str() );
if( define )
{
if( define->flags & DEFINE_FIXED )
{
idParser::Error( "can't redefine '%s'", token.c_str() );
return false;
}
idParser::Warning( "redefinition of '%s'", token.c_str() );
// unread the define name before executing the #undef directive
idParser::UnreadSourceToken( &token );
if( !idParser::Directive_undef() )
return false;
// if the define was not removed (define->flags & DEFINE_FIXED)
define = FindHashedDefine( idParser::definehash, token.c_str() );
}
// allocate define
define = ( define_t* ) Mem_ClearedAlloc( sizeof( define_t ) + token.Length() + 1, TAG_IDLIB_PARSER );
define->name = ( char* ) define + sizeof( define_t );
strcpy( define->name, token.c_str() );
// add the define to the source
AddDefineToHash( define, idParser::definehash );
// if nothing is defined, just return
if( !idParser::ReadLine( &token ) )
{
return true;
}
// if it is a define with parameters
if( token.WhiteSpaceBeforeToken() == 0 && token == "(" )
{
// read the define parameters
last = NULL;
if( !idParser::CheckTokenString( ")" ) )
{
while( 1 )
{
if( !idParser::ReadLine( &token ) )
{
idParser::Error( "expected define parameter" );
return false;
}
// if it isn't a name
if( token.type != TT_NAME )
{
idParser::Error( "invalid define parameter" );
return false;
}
if( FindDefineParm( define, token.c_str() ) >= 0 )
{
idParser::Error( "two the same define parameters" );
return false;
}
// add the define parm
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->ClearTokenWhiteSpace();
t->next = NULL;
if( last ) last->next = t;
else define->parms = t;
last = t;
define->numparms++;
// read next token
if( !idParser::ReadLine( &token ) )
{
idParser::Error( "define parameters not terminated" );
return false;
}
if( token == ")" )
{
break;
}
// then it must be a comma
if( token != "," )
{
idParser::Error( "define not terminated" );
return false;
}
}
}
if( !idParser::ReadLine( &token ) )
{
return true;
}
}
// read the defined stuff
last = NULL;
do
{
t = new( TAG_IDLIB_PARSER ) idToken( token );
if( t->type == TT_NAME && !strcmp( t->c_str(), define->name ) )
{
t->flags |= TOKEN_FL_RECURSIVE_DEFINE;
idParser::Warning( "recursive define (removed recursion)" );
}
t->ClearTokenWhiteSpace();
t->next = NULL;
if( last ) last->next = t;
else define->tokens = t;
last = t;
}
while( idParser::ReadLine( &token ) );
if( last )
{
// check for merge operators at the beginning or end
if( ( *define->tokens ) == "##" || ( *last ) == "##" )
{
idParser::Error( "define with misplaced ##" );
return false;
}
}
return true;
}
/*
================
idParser::AddDefine
================
*/
int idParser::AddDefine( const char* string )
{
define_t* define;
define = DefineFromString( string );
if( !define )
{
return false;
}
AddDefineToHash( define, idParser::definehash );
return true;
}
/*
================
idParser::AddGlobalDefinesToSource
================
*/
void idParser::AddGlobalDefinesToSource()
{
define_t* define, *newdefine;
for( define = globaldefines; define; define = define->next )
{
newdefine = CopyDefine( define );
AddDefineToHash( newdefine, idParser::definehash );
}
}
/*
================
idParser::Directive_if_def
================
*/
int idParser::Directive_if_def( int type )
{
idToken token;
define_t* d;
int skip;
if( !idParser::ReadLine( &token ) )
{
idParser::Error( "#ifdef without name" );
return false;
}
if( token.type != TT_NAME )
{
idParser::UnreadSourceToken( &token );
idParser::Error( "expected name after #ifdef, found '%s'", token.c_str() );
return false;
}
d = FindHashedDefine( idParser::definehash, token.c_str() );
skip = ( type == INDENT_IFDEF ) == ( d == NULL );
idParser::PushIndent( type, skip );
return true;
}
/*
================
idParser::Directive_ifdef
================
*/
int idParser::Directive_ifdef()
{
return idParser::Directive_if_def( INDENT_IFDEF );
}
/*
================
idParser::Directive_ifndef
================
*/
int idParser::Directive_ifndef()
{
return idParser::Directive_if_def( INDENT_IFNDEF );
}
/*
================
idParser::Directive_else
================
*/
int idParser::Directive_else()
{
int type, skip;
idParser::PopIndent( &type, &skip );
if( !type )
{
idParser::Error( "misplaced #else" );
return false;
}
if( type == INDENT_ELSE )
{
idParser::Error( "#else after #else" );
return false;
}
idParser::PushIndent( INDENT_ELSE, !skip );
return true;
}
/*
================
idParser::Directive_endif
================
*/
int idParser::Directive_endif()
{
int type, skip;
idParser::PopIndent( &type, &skip );
if( !type )
{
idParser::Error( "misplaced #endif" );
return false;
}
return true;
}
/*
================
idParser::EvaluateTokens
================
*/
typedef struct operator_s
{
int op;
int priority;
int parentheses;
struct operator_s* prev, *next;
} operator_t;
typedef struct value_s
{
signed int intvalue; // DG: use int instead of long for 64bit compatibility
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;
}
return false;
}
//#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 ) { \
idParser::Error( "out of value space\n" ); \
error = 1; \
break; \
} \
else { \
val = &value_heap[numvalues++]; \
}
#define FreeValue(val)
#define AllocOperator(op) \
if ( numoperators >= MAX_OPERATORS ) { \
idParser::Error( "out of operator space\n" ); \
error = 1; \
break; \
} \
else { \
op = &operator_heap[numoperators++]; \
}
#define FreeOperator(op)
int idParser::EvaluateTokens( idToken* tokens, signed int* intvalue, double* floatvalue, int integer )
{
operator_t* o, *firstoperator, *lastoperator;
value_t* v, *firstvalue, *lastvalue, *v1, *v2;
idToken* t;
int brace = 0;
int parentheses = 0;
int error = 0;
int lastwasvalue = 0;
int negativevalue = 0;
int questmarkintvalue = 0;
double questmarkfloatvalue = 0;
int gotquestmarkvalue = false;
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 )
{
idParser::Error( "syntax error in #if/#elif" );
error = 1;
break;
}
if( ( *t ) != "defined" )
{
idParser::Error( "undefined name '%s' in #if/#elif", t->c_str() );
error = 1;
break;
}
t = t->next;
if( ( *t ) == "(" )
{
brace = true;
t = t->next;
}
if( !t || t->type != TT_NAME )
{
idParser::Error( "defined() without name in #if/#elif" );
error = 1;
break;
}
//v = (value_t *) GetClearedMemory(sizeof(value_t));
AllocValue( v );
if( FindHashedDefine( idParser::definehash, t->c_str() ) )
{
v->intvalue = 1;
v->floatvalue = 1;
}
else
{
v->intvalue = 0;
v->floatvalue = 0;
}
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 || ( *t ) != ")" )
{
idParser::Error( "defined missing ) in #if/#elif" );
error = 1;
break;
}
}
brace = false;
// defined() creates a value
lastwasvalue = 1;
break;
}
case TT_NUMBER:
{
if( lastwasvalue )
{
idParser::Error( "syntax error in #if/#elif" );
error = 1;
break;
}
//v = (value_t *) GetClearedMemory(sizeof(value_t));
AllocValue( v );
if( negativevalue )
{
v->intvalue = - t->GetIntValue();
v->floatvalue = - t->GetFloatValue();
}
else
{
v->intvalue = t->GetIntValue();
v->floatvalue = t->GetFloatValue();
}
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;
}
case TT_PUNCTUATION:
{
if( negativevalue )
{
idParser::Error( "misplaced minus sign in #if/#elif" );
error = 1;
break;
}
if( t->subtype == P_PARENTHESESOPEN )
{
parentheses++;
break;
}
else if( t->subtype == P_PARENTHESESCLOSE )
{
parentheses--;
if( parentheses < 0 )
{
idParser::Error( "too many ) in #if/#elsif" );
error = 1;
}
break;
}
//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 )
{
idParser::Error( "illigal operator '%s' on floating point operands\n", t->c_str() );
error = 1;
break;
}
}
switch( t->subtype )
{
case P_LOGIC_NOT:
case P_BIN_NOT:
{
if( lastwasvalue )
{
idParser::Error( "! or ~ after value in #if/#elif" );
error = 1;
break;
}
break;
}
case P_INC:
case P_DEC:
{
idParser::Error( "++ or -- used in #if/#elif" );
break;
}
case P_SUB:
{
if( !lastwasvalue )
{
negativevalue = 1;
break;
}
}
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 )
{
idParser::Error( "operator '%s' after operator in #if/#elif", t->c_str() );
error = 1;
break;
}
break;
}
default:
{
idParser::Error( "invalid operator '%s' in #if/#elif", t->c_str() );
error = 1;
break;
}
}
if( !error && !negativevalue )
{
//o = (operator_t *) GetClearedMemory(sizeof(operator_t));
AllocOperator( o );
o->op = 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;
}
break;
}
default:
{
idParser::Error( "unknown '%s' in #if/#elif", t->c_str() );
error = 1;
break;
}
}
if( error )
{
break;
}
}
if( !error )
{
if( !lastwasvalue )
{
idParser::Error( "trailing operator in #if/#elif" );
error = 1;
}
else if( parentheses )
{
idParser::Error( "too many ( in #if/#elif" );
error = 1;
}
}
//
gotquestmarkvalue = false;
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;
}
}
//if the arity of the operator isn't equal to 1
if( o->op != P_LOGIC_NOT && o->op != P_BIN_NOT )
{
v = v->next;
}
//if there's no value or no next value
if( !v )
{
idParser::Error( "mising values in #if/#elif" );
error = 1;
break;
}
}
if( error )
{
break;
}
v1 = v;
v2 = v->next;
#ifdef DEBUG_EVAL
if( integer )
{
Log_Write( "operator %s, value1 = %d", idParser::scriptstack->getPunctuationFromId( o->op ), v1->intvalue );
if( v2 ) Log_Write( "value2 = %d", v2->intvalue );
}
else
{
Log_Write( "operator %s, value1 = %f", idParser::scriptstack->getPunctuationFromId( o->op ), v1->floatvalue );
if( v2 ) Log_Write( "value2 = %f", v2->floatvalue );
}
#endif //DEBUG_EVAL
switch( o->op )
{
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:
if( !v2->intvalue || !v2->floatvalue )
{
idParser::Error( "divide by zero in #if/#elif\n" );
error = 1;
break;
}
v1->intvalue /= v2->intvalue;
v1->floatvalue /= v2->floatvalue;
break;
case P_MOD:
if( !v2->intvalue )
{
idParser::Error( "divide by zero in #if/#elif\n" );
error = 1;
break;
}
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 )
{
idParser::Error( ": without ? in #if/#elif" );
error = 1;
break;
}
if( integer )
{
if( !questmarkintvalue )
v1->intvalue = v2->intvalue;
}
else
{
if( !questmarkfloatvalue )
v1->floatvalue = v2->floatvalue;
}
gotquestmarkvalue = false;
break;
}
case P_QUESTIONMARK:
{
if( gotquestmarkvalue )
{
idParser::Error( "? after ? in #if/#elif" );
error = 1;
break;
}
questmarkintvalue = v1->intvalue;
questmarkfloatvalue = v1->floatvalue;
gotquestmarkvalue = true;
break;
}
}
#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->op;
//if not an operator with arity 1
if( o->op != P_LOGIC_NOT && o->op != P_BIN_NOT )
{
//remove the second value if not question mark operator
if( o->op != 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 );
}
//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 );
}
if( firstvalue )
{
if( intvalue ) *intvalue = firstvalue->intvalue;
if( floatvalue ) *floatvalue = firstvalue->floatvalue;
}
for( o = firstoperator; o; o = lastoperator )
{
lastoperator = o->next;
//FreeMemory(o);
FreeOperator( o );
}
for( v = firstvalue; v; v = lastvalue )
{
lastvalue = v->next;
//FreeMemory(v);
FreeValue( v );
}
if( !error )
{
return true;
}
if( intvalue )
{
*intvalue = 0;
}
if( floatvalue )
{
*floatvalue = 0;
}
return false;
}
/*
================
idParser::Evaluate
================
*/
int idParser::Evaluate( signed int* intvalue, double* floatvalue, int integer )
{
idToken token, *firsttoken, *lasttoken;
idToken* t, *nexttoken;
define_t* define;
int defined = false;
if( intvalue )
{
*intvalue = 0;
}
if( floatvalue )
{
*floatvalue = 0;
}
//
if( !idParser::ReadLine( &token ) )
{
idParser::Error( "no value after #if/#elif" );
return false;
}
firsttoken = NULL;
lasttoken = NULL;
do
{
//if the token is a name
if( token.type == TT_NAME )
{
if( defined )
{
defined = false;
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = NULL;
if( lasttoken ) lasttoken->next = t;
else firsttoken = t;
lasttoken = t;
}
else if( token == "defined" )
{
defined = true;
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = NULL;
if( lasttoken ) lasttoken->next = t;
else firsttoken = t;
lasttoken = t;
}
else
{
//then it must be a define
define = FindHashedDefine( idParser::definehash, token.c_str() );
if( !define )
{
idParser::Error( "can't Evaluate '%s', not defined", token.c_str() );
return false;
}
if( !idParser::ExpandDefineIntoSource( &token, define ) )
{
return false;
}
}
}
//if the token is a number or a punctuation
else if( token.type == TT_NUMBER || token.type == TT_PUNCTUATION )
{
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = NULL;
if( lasttoken ) lasttoken->next = t;
else firsttoken = t;
lasttoken = t;
}
else
{
idParser::Error( "can't Evaluate '%s'", token.c_str() );
return false;
}
}
while( idParser::ReadLine( &token ) );
//
if( !idParser::EvaluateTokens( firsttoken, intvalue, floatvalue, integer ) )
{
return false;
}
//
#ifdef DEBUG_EVAL
Log_Write( "eval:" );
#endif //DEBUG_EVAL
for( t = firsttoken; t; t = nexttoken )
{
#ifdef DEBUG_EVAL
Log_Write( " %s", t->c_str() );
#endif //DEBUG_EVAL
nexttoken = t->next;
delete 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 true;
}
/*
================
idParser::DollarEvaluate
================
*/
int idParser::DollarEvaluate( signed int* intvalue, double* floatvalue, int integer )
{
int indent, defined = false;
idToken token, *firsttoken, *lasttoken;
idToken* t, *nexttoken;
define_t* define;
if( intvalue )
{
*intvalue = 0;
}
if( floatvalue )
{
*floatvalue = 0;
}
//
if( !idParser::ReadSourceToken( &token ) )
{
idParser::Error( "no leading ( after $evalint/$evalfloat" );
return false;
}
if( !idParser::ReadSourceToken( &token ) )
{
idParser::Error( "nothing to Evaluate" );
return false;
}
indent = 1;
firsttoken = NULL;
lasttoken = NULL;
do
{
//if the token is a name
if( token.type == TT_NAME )
{
if( defined )
{
defined = false;
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = NULL;
if( lasttoken ) lasttoken->next = t;
else firsttoken = t;
lasttoken = t;
}
else if( token == "defined" )
{
defined = true;
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = NULL;
if( lasttoken ) lasttoken->next = t;
else firsttoken = t;
lasttoken = t;
}
else
{
//then it must be a define
define = FindHashedDefine( idParser::definehash, token.c_str() );
if( !define )
{
idParser::Warning( "can't Evaluate '%s', not defined", token.c_str() );
return false;
}
if( !idParser::ExpandDefineIntoSource( &token, define ) )
{
return false;
}
}
}
//if the token is a number or a punctuation
else if( token.type == TT_NUMBER || token.type == TT_PUNCTUATION )
{
if( token[0] == '(' ) indent++;
else if( token[0] == ')' ) indent--;
if( indent <= 0 )
{
break;
}
t = new( TAG_IDLIB_PARSER ) idToken( token );
t->next = NULL;
if( lasttoken ) lasttoken->next = t;
else firsttoken = t;
lasttoken = t;
}
else
{
idParser::Error( "can't Evaluate '%s'", token.c_str() );
return false;
}
}
while( idParser::ReadSourceToken( &token ) );
//
if( !idParser::EvaluateTokens( firsttoken, intvalue, floatvalue, integer ) )
{
return false;
}
//
#ifdef DEBUG_EVAL
Log_Write( "$eval:" );
#endif //DEBUG_EVAL
for( t = firsttoken; t; t = nexttoken )
{
#ifdef DEBUG_EVAL
Log_Write( " %s", t->c_str() );
#endif //DEBUG_EVAL
nexttoken = t->next;
delete t;
} //end for
#ifdef DEBUG_EVAL
if( integer ) Log_Write( "$eval result: %d", *intvalue );
else Log_Write( "$eval result: %f", *floatvalue );
#endif //DEBUG_EVAL
//
return true;
}
/*
================
idParser::Directive_elif
================
*/
int idParser::Directive_elif()
{
signed int value; // DG: use int instead of long for 64bit compatibility
int type, skip;
idParser::PopIndent( &type, &skip );
if( !type || type == INDENT_ELSE )
{
idParser::Error( "misplaced #elif" );
return false;
}
if( !idParser::Evaluate( &value, NULL, true ) )
{
return false;
}
skip = ( value == 0 );
idParser::PushIndent( INDENT_ELIF, skip );
return true;
}
/*
================
idParser::Directive_if
================
*/
int idParser::Directive_if()
{
signed int value; // DG: use int instead of long for 64bit compatibility
int skip;
if( !idParser::Evaluate( &value, NULL, true ) )
{
return false;
}
skip = ( value == 0 );
idParser::PushIndent( INDENT_IF, skip );
return true;
}
/*
================
idParser::Directive_line
================
*/
int idParser::Directive_line()
{
idToken token;
idParser::Error( "#line directive not supported" );
while( idParser::ReadLine( &token ) )
{
}
return true;
}
/*
================
idParser::Directive_error
================
*/
int idParser::Directive_error()
{
idToken token;
if( !idParser::ReadLine( &token ) || token.type != TT_STRING )
{
idParser::Error( "#error without string" );
return false;
}
idParser::Error( "#error: %s", token.c_str() );
return true;
}
/*
================
idParser::Directive_warning
================
*/
int idParser::Directive_warning()
{
idToken token;
if( !idParser::ReadLine( &token ) || token.type != TT_STRING )
{
idParser::Warning( "#warning without string" );
return false;
}
idParser::Warning( "#warning: %s", token.c_str() );
return true;
}
/*
================
idParser::Directive_pragma
================
*/
int idParser::Directive_pragma()
{
idToken token;
idParser::Warning( "#pragma directive not supported" );
while( idParser::ReadLine( &token ) )
{
}
return true;
}
/*
================
idParser::UnreadSignToken
================
*/
void idParser::UnreadSignToken()
{
idToken token;
token.line = idParser::scriptstack->GetLineNum();
token.whiteSpaceStart_p = NULL;
token.whiteSpaceEnd_p = NULL;
token.linesCrossed = 0;
token.flags = 0;
token = "-";
token.type = TT_PUNCTUATION;
token.subtype = P_SUB;
idParser::UnreadSourceToken( &token );
}
/*
================
idParser::Directive_eval
================
*/
int idParser::Directive_eval()
{
signed int value; // DG: use int instead of long for 64bit compatibility
idToken token;
char buf[128];
if( !idParser::Evaluate( &value, NULL, true ) )
{
return false;
}
token.line = idParser::scriptstack->GetLineNum();
token.whiteSpaceStart_p = NULL;
token.whiteSpaceEnd_p = NULL;
token.linesCrossed = 0;
token.flags = 0;
sprintf( buf, "%d", abs( value ) );
token = buf;
token.type = TT_NUMBER;
token.subtype = TT_INTEGER | TT_LONG | TT_DECIMAL;
idParser::UnreadSourceToken( &token );
if( value < 0 )
{
idParser::UnreadSignToken();
}
return true;
}
/*
================
idParser::Directive_evalfloat
================
*/
int idParser::Directive_evalfloat()
{
double value;
idToken token;
char buf[128];
if( !idParser::Evaluate( NULL, &value, false ) )
{
return false;
}
token.line = idParser::scriptstack->GetLineNum();
token.whiteSpaceStart_p = NULL;
token.whiteSpaceEnd_p = NULL;
token.linesCrossed = 0;
token.flags = 0;
sprintf( buf, "%1.2f", idMath::Fabs( value ) );
token = buf;
token.type = TT_NUMBER;
token.subtype = TT_FLOAT | TT_LONG | TT_DECIMAL;
idParser::UnreadSourceToken( &token );
if( value < 0 )
{
idParser::UnreadSignToken();
}
return true;
}
/*
================
idParser::ReadDirective
================
*/
int idParser::ReadDirective()
{
idToken token;
//read the directive name
if( !idParser::ReadSourceToken( &token ) )
{
idParser::Error( "found '#' without name" );
return false;
}
//directive name must be on the same line
if( token.linesCrossed > 0 )
{
idParser::UnreadSourceToken( &token );
idParser::Error( "found '#' at end of line" );
return false;
}
//if if is a name
if( token.type == TT_NAME )
{
if( token == "if" )
{
return idParser::Directive_if();
}
else if( token == "ifdef" )
{
return idParser::Directive_ifdef();
}
else if( token == "ifndef" )
{
return idParser::Directive_ifndef();
}
else if( token == "elif" )
{
return idParser::Directive_elif();
}
else if( token == "else" )
{
return idParser::Directive_else();
}
else if( token == "endif" )
{
return idParser::Directive_endif();
}
else if( idParser::skip > 0 )
{
// skip the rest of the line
while( idParser::ReadLine( &token ) )
{
}
return true;
}
else
{
if( token == "include" )
{
return idParser::Directive_include();
}
else if( token == "define" )
{
return idParser::Directive_define();
}
else if( token == "undef" )
{
return idParser::Directive_undef();
}
else if( token == "line" )
{
return idParser::Directive_line();
}
else if( token == "error" )
{
return idParser::Directive_error();
}
else if( token == "warning" )
{
return idParser::Directive_warning();
}
else if( token == "pragma" )
{
return idParser::Directive_pragma();
}
else if( token == "eval" )
{
return idParser::Directive_eval();
}
else if( token == "evalfloat" )
{
return idParser::Directive_evalfloat();
}
}
}
idParser::Error( "unknown precompiler directive '%s'", token.c_str() );
return false;
}
/*
================
idParser::DollarDirective_evalint
================
*/
int idParser::DollarDirective_evalint()
{
signed int value; // DG: use int instead of long for 64bit compatibility
idToken token;
char buf[128];
if( !idParser::DollarEvaluate( &value, NULL, true ) )
{
return false;
}
token.line = idParser::scriptstack->GetLineNum();
token.whiteSpaceStart_p = NULL;
token.whiteSpaceEnd_p = NULL;
token.linesCrossed = 0;
token.flags = 0;
sprintf( buf, "%d", abs( value ) );
token = buf;
token.type = TT_NUMBER;
token.subtype = TT_INTEGER | TT_LONG | TT_DECIMAL | TT_VALUESVALID;
token.intvalue = abs( value );
token.floatvalue = abs( value );
idParser::UnreadSourceToken( &token );
if( value < 0 )
{
idParser::UnreadSignToken();
}
return true;
}
/*
================
idParser::DollarDirective_evalfloat
================
*/
int idParser::DollarDirective_evalfloat()
{
double value;
idToken token;
char buf[128];
if( !idParser::DollarEvaluate( NULL, &value, false ) )
{
return false;
}
token.line = idParser::scriptstack->GetLineNum();
token.whiteSpaceStart_p = NULL;
token.whiteSpaceEnd_p = NULL;
token.linesCrossed = 0;
token.flags = 0;
sprintf( buf, "%1.2f", fabs( value ) );
token = buf;
token.type = TT_NUMBER;
token.subtype = TT_FLOAT | TT_LONG | TT_DECIMAL | TT_VALUESVALID;
token.intvalue = ( unsigned int ) fabs( value ); // DG: use int instead of long for 64bit compatibility
token.floatvalue = fabs( value );
idParser::UnreadSourceToken( &token );
if( value < 0 )
{
idParser::UnreadSignToken();
}
return true;
}
/*
================
idParser::ReadDollarDirective
================
*/
int idParser::ReadDollarDirective()
{
idToken token;
// read the directive name
if( !idParser::ReadSourceToken( &token ) )
{
idParser::Error( "found '$' without name" );
return false;
}
// directive name must be on the same line
if( token.linesCrossed > 0 )
{
idParser::UnreadSourceToken( &token );
idParser::Error( "found '$' at end of line" );
return false;
}
// if if is a name
if( token.type == TT_NAME )
{
if( token == "evalint" )
{
return idParser::DollarDirective_evalint();
}
else if( token == "evalfloat" )
{
return idParser::DollarDirective_evalfloat();
}
}
idParser::UnreadSourceToken( &token );
return false;
}
/*
================
idParser::ReadToken
================
*/
int idParser::ReadToken( idToken* token )
{
define_t* define;
while( 1 )
{
if( !idParser::ReadSourceToken( token ) )
{
return false;
}
// check for precompiler directives
if( token->type == TT_PUNCTUATION && ( *token )[0] == '#' && ( *token )[1] == '\0' )
{
// read the precompiler directive
if( !idParser::ReadDirective() )
{
return false;
}
continue;
}
// if skipping source because of conditional compilation
if( idParser::skip )
{
continue;
}
// recursively concatenate strings that are behind each other still resolving defines
if( token->type == TT_STRING && !( idParser::scriptstack->GetFlags() & LEXFL_NOSTRINGCONCAT ) )
{
idToken newtoken;
if( idParser::ReadToken( &newtoken ) )
{
if( newtoken.type == TT_STRING )
{
token->Append( newtoken.c_str() );
}
else
{
idParser::UnreadSourceToken( &newtoken );
}
}
}
//
if( !( idParser::scriptstack->GetFlags() & LEXFL_NODOLLARPRECOMPILE ) )
{
// check for special precompiler directives
if( token->type == TT_PUNCTUATION && ( *token )[0] == '$' && ( *token )[1] == '\0' )
{
// read the precompiler directive
if( idParser::ReadDollarDirective() )
{
continue;
}
}
}
// if the token is a name
if( token->type == TT_NAME && !( token->flags & TOKEN_FL_RECURSIVE_DEFINE ) )
{
// check if the name is a define macro
define = FindHashedDefine( idParser::definehash, token->c_str() );
// if it is a define macro
if( define )
{
// expand the defined macro
if( !idParser::ExpandDefineIntoSource( token, define ) )
{
return false;
}
continue;
}
}
// found a token
return true;
}
}
/*
================
idParser::ExpectTokenString
================
*/
int idParser::ExpectTokenString( const char* string )
{
idToken token;
if( !idParser::ReadToken( &token ) )
{
idParser::Error( "couldn't find expected '%s'", string );
return false;
}
if( token != string )
{
idParser::Error( "expected '%s' but found '%s'", string, token.c_str() );
return false;
}
return true;
}
/*
================
idParser::ExpectTokenType
================
*/
int idParser::ExpectTokenType( int type, int subtype, idToken* token )
{
idStr str;
if( !idParser::ReadToken( token ) )
{
idParser::Error( "couldn't read expected token" );
return 0;
}
if( token->type != type )
{
switch( type )
{
case TT_STRING:
str = "string";
break;
case TT_LITERAL:
str = "literal";
break;
case TT_NUMBER:
str = "number";
break;
case TT_NAME:
str = "name";
break;
case TT_PUNCTUATION:
str = "punctuation";
break;
default:
str = "unknown type";
break;
}
idParser::Error( "expected a %s but found '%s'", str.c_str(), token->c_str() );
return 0;
}
if( token->type == TT_NUMBER )
{
if( ( token->subtype & subtype ) != subtype )
{
str.Clear();
if( subtype & TT_DECIMAL ) str = "decimal ";
if( subtype & TT_HEX ) str = "hex ";
if( subtype & TT_OCTAL ) str = "octal ";
if( subtype & TT_BINARY ) str = "binary ";
if( subtype & TT_UNSIGNED ) str += "unsigned ";
if( subtype & TT_LONG ) str += "long ";
if( subtype & TT_FLOAT ) str += "float ";
if( subtype & TT_INTEGER ) str += "integer ";
str.StripTrailing( ' ' );
idParser::Error( "expected %s but found '%s'", str.c_str(), token->c_str() );
return 0;
}
}
else if( token->type == TT_PUNCTUATION )
{
if( subtype < 0 )
{
idParser::Error( "BUG: wrong punctuation subtype" );
return 0;
}
if( token->subtype != subtype )
{
idParser::Error( "expected '%s' but found '%s'", scriptstack->GetPunctuationFromId( subtype ), token->c_str() );
return 0;
}
}
return 1;
}
/*
================
idParser::ExpectAnyToken
================
*/
int idParser::ExpectAnyToken( idToken* token )
{
if( !idParser::ReadToken( token ) )
{
idParser::Error( "couldn't read expected token" );
return false;
}
else
{
return true;
}
}
/*
================
idParser::CheckTokenString
================
*/
int idParser::CheckTokenString( const char* string )
{
idToken tok;
if( !ReadToken( &tok ) )
{
return false;
}
//if the token is available
if( tok == string )
{
return true;
}
UnreadSourceToken( &tok );
return false;
}
/*
================
idParser::CheckTokenType
================
*/
int idParser::CheckTokenType( int type, int subtype, idToken* token )
{
idToken tok;
if( !ReadToken( &tok ) )
{
return false;
}
//if the type matches
if( tok.type == type && ( tok.subtype & subtype ) == subtype )
{
*token = tok;
return true;
}
UnreadSourceToken( &tok );
return false;
}
/*
================
idParser::PeekTokenString
================
*/
int idParser::PeekTokenString( const char* string )
{
idToken tok;
if( !ReadToken( &tok ) )
{
return false;
}
UnreadSourceToken( &tok );
// if the token is available
if( tok == string )
{
return true;
}
return false;
}
/*
================
idParser::PeekTokenType
================
*/
int idParser::PeekTokenType( int type, int subtype, idToken* token )
{
idToken tok;
if( !ReadToken( &tok ) )
{
return false;
}
UnreadSourceToken( &tok );
// if the type matches
if( tok.type == type && ( tok.subtype & subtype ) == subtype )
{
*token = tok;
return true;
}
return false;
}
/*
================
idParser::SkipUntilString
================
*/
int idParser::SkipUntilString( const char* string )
{
idToken token;
while( idParser::ReadToken( &token ) )
{
if( token == string )
{
return true;
}
}
return false;
}
/*
================
idParser::SkipRestOfLine
================
*/
int idParser::SkipRestOfLine()
{
idToken token;
while( idParser::ReadToken( &token ) )
{
if( token.linesCrossed )
{
idParser::UnreadSourceToken( &token );
return true;
}
}
return false;
}
/*
=================
idParser::SkipBracedSection
Skips until a matching close brace is found.
Internal brace depths are properly skipped.
=================
*/
int idParser::SkipBracedSection( bool parseFirstBrace )
{
idToken token;
int depth;
depth = parseFirstBrace ? 0 : 1;
do
{
if( !ReadToken( &token ) )
{
return false;
}
if( token.type == TT_PUNCTUATION )
{
if( token == "{" )
{
depth++;
}
else if( token == "}" )
{
depth--;
}
}
}
while( depth );
return true;
}
/*
=================
idParser::ParseBracedSectionExact
The next token should be an open brace.
Parses until a matching close brace is found.
Maintains the exact formating of the braced section
FIXME: what about precompilation ?
=================
*/
const char* idParser::ParseBracedSectionExact( idStr& out, int tabs )
{
return scriptstack->ParseBracedSectionExact( out, tabs );
}
/*
========================
idParser::ParseBracedSection
The next token should be an open brace. Parses until a matching close brace is found. Internal
brace depths are properly skipped.
========================
*/
const char* idParser::ParseBracedSection( idStr& out, int tabs, bool parseFirstBrace, char intro, char outro )
{
idToken token;
int i, depth;
bool doTabs;
char temp[ 2 ] = { 0, 0 };
*temp = intro;
out.Empty();
if( parseFirstBrace )
{
if( !ExpectTokenString( temp ) )
{
return out.c_str();
}
out = temp;
}
depth = 1;
doTabs = ( tabs >= 0 );
do
{
if( !ReadToken( &token ) )
{
Error( "missing closing brace" );
return out.c_str();
}
// if the token is on a new line
for( i = 0; i < token.linesCrossed; i++ )
{
out += "\r\n";
}
if( doTabs && token.linesCrossed )
{
i = tabs;
if( token[ 0 ] == outro && i > 0 )
{
i--;
}
while( i-- > 0 )
{
out += "\t";
}
}
if( token.type == TT_STRING )
{
out += "\"" + token + "\"";
}
else if( token.type == TT_LITERAL )
{
out += "\'" + token + "\'";
}
else
{
if( token[ 0 ] == intro )
{
depth++;
if( doTabs )
{
tabs++;
}
}
else if( token[ 0 ] == outro )
{
depth--;
if( doTabs )
{
tabs--;
}
}
out += token;
}
out += " ";
}
while( depth );
return out.c_str();
}
/*
=================
idParser::ParseRestOfLine
parse the rest of the line
=================
*/
const char* idParser::ParseRestOfLine( idStr& out )
{
idToken token;
out.Empty();
while( idParser::ReadToken( &token ) )
{
if( token.linesCrossed )
{
idParser::UnreadSourceToken( &token );
break;
}
if( out.Length() )
{
out += " ";
}
out += token;
}
return out.c_str();
}
/*
================
idParser::UnreadToken
================
*/
void idParser::UnreadToken( idToken* token )
{
idParser::UnreadSourceToken( token );
}
/*
================
idParser::ReadTokenOnLine
================
*/
int idParser::ReadTokenOnLine( idToken* token )
{
idToken tok;
if( !idParser::ReadToken( &tok ) )
{
return false;
}
// if no lines were crossed before this token
if( !tok.linesCrossed )
{
*token = tok;
return true;
}
//
idParser::UnreadSourceToken( &tok );
return false;
}
/*
================
idParser::ParseInt
================
*/
int idParser::ParseInt()
{
idToken token;
if( !idParser::ReadToken( &token ) )
{
idParser::Error( "couldn't read expected integer" );
return 0;
}
if( token.type == TT_PUNCTUATION && token == "-" )
{
idParser::ExpectTokenType( TT_NUMBER, TT_INTEGER, &token );
return -( ( signed int ) token.GetIntValue() );
}
else if( token.type != TT_NUMBER || token.subtype == TT_FLOAT )
{
idParser::Error( "expected integer value, found '%s'", token.c_str() );
}
return token.GetIntValue();
}
/*
================
idParser::ParseBool
================
*/
bool idParser::ParseBool()
{
idToken token;
if( !idParser::ExpectTokenType( TT_NUMBER, 0, &token ) )
{
idParser::Error( "couldn't read expected boolean" );
return false;
}
return ( token.GetIntValue() != 0 );
}
/*
================
idParser::ParseFloat
================
*/
float idParser::ParseFloat()
{
idToken token;
if( !idParser::ReadToken( &token ) )
{
idParser::Error( "couldn't read expected floating point number" );
return 0.0f;
}
if( token.type == TT_PUNCTUATION && token == "-" )
{
idParser::ExpectTokenType( TT_NUMBER, 0, &token );
return -token.GetFloatValue();
}
else if( token.type != TT_NUMBER )
{
idParser::Error( "expected float value, found '%s'", token.c_str() );
}
return token.GetFloatValue();
}
/*
================
idParser::Parse1DMatrix
================
*/
int idParser::Parse1DMatrix( int x, float* m )
{
int i;
if( !idParser::ExpectTokenString( "(" ) )
{
return false;
}
for( i = 0; i < x; i++ )
{
m[i] = idParser::ParseFloat();
}
if( !idParser::ExpectTokenString( ")" ) )
{
return false;
}
return true;
}
/*
================
idParser::Parse2DMatrix
================
*/
int idParser::Parse2DMatrix( int y, int x, float* m )
{
int i;
if( !idParser::ExpectTokenString( "(" ) )
{
return false;
}
for( i = 0; i < y; i++ )
{
if( !idParser::Parse1DMatrix( x, m + i * x ) )
{
return false;
}
}
if( !idParser::ExpectTokenString( ")" ) )
{
return false;
}
return true;
}
/*
================
idParser::Parse3DMatrix
================
*/
int idParser::Parse3DMatrix( int z, int y, int x, float* m )
{
int i;
if( !idParser::ExpectTokenString( "(" ) )
{
return false;
}
for( i = 0 ; i < z; i++ )
{
if( !idParser::Parse2DMatrix( y, x, m + i * x * y ) )
{
return false;
}
}
if( !idParser::ExpectTokenString( ")" ) )
{
return false;
}
return true;
}
/*
================
idParser::GetLastWhiteSpace
================
*/
int idParser::GetLastWhiteSpace( idStr& whiteSpace ) const
{
if( scriptstack )
{
scriptstack->GetLastWhiteSpace( whiteSpace );
}
else
{
whiteSpace.Clear();
}
return whiteSpace.Length();
}
/*
================
idParser::SetMarker
================
*/
void idParser::SetMarker()
{
marker_p = NULL;
}
/*
================
idParser::GetStringFromMarker
FIXME: this is very bad code, the script isn't even garrenteed to still be around
================
*/
void idParser::GetStringFromMarker( idStr& out, bool clean )
{
char* p;
char save;
if( marker_p == NULL )
{
marker_p = scriptstack->buffer;
}
if( tokens )
{
p = ( char* )tokens->whiteSpaceStart_p;
}
else
{
p = ( char* )scriptstack->script_p;
}
// Set the end character to NULL to give us a complete string
save = *p;
*p = 0;
// If cleaning then reparse
if( clean )
{
idParser temp( marker_p, strlen( marker_p ), "temp", flags );
idToken token;
while( temp.ReadToken( &token ) )
{
out += token;
}
}
else
{
out = marker_p;
}
// restore the character we set to NULL
*p = save;
}
/*
================
idParser::SetIncludePath
================
*/
void idParser::SetIncludePath( const char* path )
{
idParser::includepath = path;
// add trailing path seperator
if( idParser::includepath[idParser::includepath.Length() - 1] != '\\' &&
idParser::includepath[idParser::includepath.Length() - 1] != '/' )
{
idParser::includepath += PATHSEPARATOR_STR;
}
}
/*
================
idParser::SetPunctuations
================
*/
void idParser::SetPunctuations( const punctuation_t* p )
{
idParser::punctuations = p;
}
/*
================
idParser::SetFlags
================
*/
void idParser::SetFlags( int flags )
{
idLexer* s;
idParser::flags = flags;
for( s = idParser::scriptstack; s; s = s->next )
{
s->SetFlags( flags );
}
}
/*
================
idParser::GetFlags
================
*/
int idParser::GetFlags() const
{
return idParser::flags;
}
/*
================
idParser::LoadFile
================
*/
int idParser::LoadFile( const char* filename, bool OSPath )
{
idLexer* script;
if( idParser::loaded )
{
idLib::common->FatalError( "idParser::loadFile: another source already loaded" );
return false;
}
script = new( TAG_IDLIB_PARSER ) idLexer( filename, 0, OSPath );
if( !script->IsLoaded() )
{
delete script;
return false;
}
script->SetFlags( idParser::flags );
script->SetPunctuations( idParser::punctuations );
script->next = NULL;
idParser::OSPath = OSPath;
idParser::filename = filename;
idParser::scriptstack = script;
idParser::tokens = NULL;
idParser::indentstack = NULL;
idParser::skip = 0;
idParser::loaded = true;
if( !idParser::definehash )
{
idParser::defines = NULL;
idParser::definehash = ( define_t** ) Mem_ClearedAlloc( DEFINEHASHSIZE * sizeof( define_t* ), TAG_IDLIB_PARSER );
idParser::AddGlobalDefinesToSource();
}
return true;
}
/*
================
idParser::LoadMemory
================
*/
int idParser::LoadMemory( const char* ptr, int length, const char* name )
{
idLexer* script;
if( idParser::loaded )
{
idLib::common->FatalError( "idParser::loadMemory: another source already loaded" );
return false;
}
script = new( TAG_IDLIB_PARSER ) idLexer( ptr, length, name );
if( !script->IsLoaded() )
{
delete script;
return false;
}
script->SetFlags( idParser::flags );
script->SetPunctuations( idParser::punctuations );
script->next = NULL;
idParser::filename = name;
idParser::scriptstack = script;
idParser::tokens = NULL;
idParser::indentstack = NULL;
idParser::skip = 0;
idParser::loaded = true;
if( !idParser::definehash )
{
idParser::defines = NULL;
idParser::definehash = ( define_t** ) Mem_ClearedAlloc( DEFINEHASHSIZE * sizeof( define_t* ), TAG_IDLIB_PARSER );
idParser::AddGlobalDefinesToSource();
}
return true;
}
/*
================
idParser::FreeSource
================
*/
void idParser::FreeSource( bool keepDefines )
{
idLexer* script;
idToken* token;
define_t* define;
indent_t* indent;
int i;
// free all the scripts
while( scriptstack )
{
script = scriptstack;
scriptstack = scriptstack->next;
delete script;
}
// free all the tokens
while( tokens )
{
token = tokens;
tokens = tokens->next;
delete token;
}
// free all indents
while( indentstack )
{
indent = indentstack;
indentstack = indentstack->next;
Mem_Free( indent );
}
if( !keepDefines )
{
// free hash table
if( definehash )
{
// free defines
for( i = 0; i < DEFINEHASHSIZE; i++ )
{
while( definehash[i] )
{
define = definehash[i];
definehash[i] = definehash[i]->hashnext;
FreeDefine( define );
}
}
defines = NULL;
Mem_Free( idParser::definehash );
definehash = NULL;
}
}
loaded = false;
}
/*
================
idParser::GetPunctuationFromId
================
*/
const char* idParser::GetPunctuationFromId( int id )
{
int i;
if( !idParser::punctuations )
{
idLexer lex;
return lex.GetPunctuationFromId( id );
}
for( i = 0; idParser::punctuations[i].p; i++ )
{
if( idParser::punctuations[i].n == id )
{
return idParser::punctuations[i].p;
}
}
return "unkown punctuation";
}
/*
================
idParser::GetPunctuationId
================
*/
int idParser::GetPunctuationId( const char* p )
{
int i;
if( !idParser::punctuations )
{
idLexer lex;
return lex.GetPunctuationId( p );
}
for( i = 0; idParser::punctuations[i].p; i++ )
{
if( !strcmp( idParser::punctuations[i].p, p ) )
{
return idParser::punctuations[i].n;
}
}
return 0;
}
/*
================
idParser::idParser
================
*/
idParser::idParser()
{
this->loaded = false;
this->OSPath = false;
this->punctuations = 0;
this->flags = 0;
this->scriptstack = NULL;
this->indentstack = NULL;
this->definehash = NULL;
this->defines = NULL;
this->tokens = NULL;
this->marker_p = NULL;
}
/*
================
idParser::idParser
================
*/
idParser::idParser( int flags )
{
this->loaded = false;
this->OSPath = false;
this->punctuations = 0;
this->flags = flags;
this->scriptstack = NULL;
this->indentstack = NULL;
this->definehash = NULL;
this->defines = NULL;
this->tokens = NULL;
this->marker_p = NULL;
}
/*
================
idParser::idParser
================
*/
idParser::idParser( const char* filename, int flags, bool OSPath )
{
this->loaded = false;
this->OSPath = true;
this->punctuations = 0;
this->flags = flags;
this->scriptstack = NULL;
this->indentstack = NULL;
this->definehash = NULL;
this->defines = NULL;
this->tokens = NULL;
this->marker_p = NULL;
LoadFile( filename, OSPath );
}
/*
================
idParser::idParser
================
*/
idParser::idParser( const char* ptr, int length, const char* name, int flags )
{
this->loaded = false;
this->OSPath = false;
this->punctuations = 0;
this->flags = flags;
this->scriptstack = NULL;
this->indentstack = NULL;
this->definehash = NULL;
this->defines = NULL;
this->tokens = NULL;
this->marker_p = NULL;
LoadMemory( ptr, length, name );
}
/*
================
idParser::~idParser
================
*/
idParser::~idParser()
{
idParser::FreeSource( false );
}
/*
========================
idParser::EndOfFile
========================
*/
bool idParser::EndOfFile()
{
if( scriptstack != NULL )
{
return ( bool ) scriptstack->EndOfFile();
}
return true;
}