mirror of
https://github.com/id-Software/DOOM-3-BFG.git
synced 2024-12-02 17:02:17 +00:00
304 lines
11 KiB
C++
304 lines
11 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.
|
|
|
|
===========================================================================
|
|
*/
|
|
|
|
#ifndef __PARSER_H__
|
|
#define __PARSER_H__
|
|
|
|
/*
|
|
===============================================================================
|
|
|
|
C/C++ compatible pre-compiler
|
|
|
|
===============================================================================
|
|
*/
|
|
|
|
#define DEFINE_FIXED 0x0001
|
|
|
|
#define BUILTIN_LINE 1
|
|
#define BUILTIN_FILE 2
|
|
#define BUILTIN_DATE 3
|
|
#define BUILTIN_TIME 4
|
|
#define BUILTIN_STDC 5
|
|
|
|
#define INDENT_IF 0x0001
|
|
#define INDENT_ELSE 0x0002
|
|
#define INDENT_ELIF 0x0004
|
|
#define INDENT_IFDEF 0x0008
|
|
#define INDENT_IFNDEF 0x0010
|
|
|
|
// macro definitions
|
|
typedef struct define_s
|
|
{
|
|
char* name; // define name
|
|
int flags; // define flags
|
|
int builtin; // > 0 if builtin define
|
|
int numparms; // number of define parameters
|
|
idToken* parms; // define parameters
|
|
idToken* tokens; // macro tokens (possibly containing parm tokens)
|
|
struct define_s* next; // next defined macro in a list
|
|
struct define_s* hashnext; // next define in the hash chain
|
|
} define_t;
|
|
|
|
// indents used for conditional compilation directives:
|
|
// #if, #else, #elif, #ifdef, #ifndef
|
|
typedef struct indent_s
|
|
{
|
|
int type; // indent type
|
|
int skip; // true if skipping current indent
|
|
idLexer* script; // script the indent was in
|
|
struct indent_s* next; // next indent on the indent stack
|
|
} indent_t;
|
|
|
|
|
|
class idParser
|
|
{
|
|
|
|
public:
|
|
// constructor
|
|
idParser();
|
|
idParser( int flags );
|
|
idParser( const char* filename, int flags = 0, bool OSPath = false );
|
|
idParser( const char* ptr, int length, const char* name, int flags = 0 );
|
|
// destructor
|
|
~idParser();
|
|
// load a source file
|
|
int LoadFile( const char* filename, bool OSPath = false );
|
|
// load a source from the given memory with the given length
|
|
// NOTE: the ptr is expected to point at a valid C string: ptr[length] == '\0'
|
|
int LoadMemory( const char* ptr, int length, const char* name );
|
|
// free the current source
|
|
void FreeSource( bool keepDefines = false );
|
|
// returns true if a source is loaded
|
|
int IsLoaded() const
|
|
{
|
|
return idParser::loaded;
|
|
}
|
|
// read a token from the source
|
|
int ReadToken( idToken* token );
|
|
// expect a certain token, reads the token when available
|
|
int ExpectTokenString( const char* string );
|
|
// expect a certain token type
|
|
int ExpectTokenType( int type, int subtype, idToken* token );
|
|
// expect a token
|
|
int ExpectAnyToken( idToken* token );
|
|
// returns true if the next token equals the given string and removes the token from the source
|
|
int CheckTokenString( const char* string );
|
|
// returns true if the next token equals the given type and removes the token from the source
|
|
int CheckTokenType( int type, int subtype, idToken* token );
|
|
// returns true if the next token equals the given string but does not remove the token from the source
|
|
int PeekTokenString( const char* string );
|
|
// returns true if the next token equals the given type but does not remove the token from the source
|
|
int PeekTokenType( int type, int subtype, idToken* token );
|
|
// skip tokens until the given token string is read
|
|
int SkipUntilString( const char* string );
|
|
// skip the rest of the current line
|
|
int SkipRestOfLine();
|
|
// skip the braced section
|
|
int SkipBracedSection( bool parseFirstBrace = true );
|
|
// parse a braced section into a string
|
|
const char* ParseBracedSection( idStr& out, int tabs, bool parseFirstBrace, char intro, char outro );
|
|
// parse a braced section into a string, maintaining indents and newlines
|
|
const char* ParseBracedSectionExact( idStr& out, int tabs = -1 );
|
|
// parse the rest of the line
|
|
const char* ParseRestOfLine( idStr& out );
|
|
// unread the given token
|
|
void UnreadToken( idToken* token );
|
|
// read a token only if on the current line
|
|
int ReadTokenOnLine( idToken* token );
|
|
// read a signed integer
|
|
int ParseInt();
|
|
// read a boolean
|
|
bool ParseBool();
|
|
// read a floating point number
|
|
float ParseFloat();
|
|
// parse matrices with floats
|
|
int Parse1DMatrix( int x, float* m );
|
|
int Parse2DMatrix( int y, int x, float* m );
|
|
int Parse3DMatrix( int z, int y, int x, float* m );
|
|
// get the white space before the last read token
|
|
int GetLastWhiteSpace( idStr& whiteSpace ) const;
|
|
// Set a marker in the source file (there is only one marker)
|
|
void SetMarker();
|
|
// Get the string from the marker to the current position
|
|
void GetStringFromMarker( idStr& out, bool clean = false );
|
|
// add a define to the source
|
|
int AddDefine( const char* string );
|
|
// add builtin defines
|
|
void AddBuiltinDefines();
|
|
// set the source include path
|
|
void SetIncludePath( const char* path );
|
|
// set the punctuation set
|
|
void SetPunctuations( const punctuation_t* p );
|
|
// returns a pointer to the punctuation with the given id
|
|
const char* GetPunctuationFromId( int id );
|
|
// get the id for the given punctuation
|
|
int GetPunctuationId( const char* p );
|
|
// set lexer flags
|
|
void SetFlags( int flags );
|
|
// get lexer flags
|
|
int GetFlags() const;
|
|
// returns the current filename
|
|
const char* GetFileName() const;
|
|
// get current offset in current script
|
|
const int GetFileOffset() const;
|
|
// get file time for current script
|
|
const ID_TIME_T GetFileTime() const;
|
|
// returns the current line number
|
|
const int GetLineNum() const;
|
|
// print an error message
|
|
void Error( VERIFY_FORMAT_STRING const char* str, ... ) const;
|
|
// print a warning message
|
|
void Warning( VERIFY_FORMAT_STRING const char* str, ... ) const;
|
|
// returns true if at the end of the file
|
|
bool EndOfFile();
|
|
// add a global define that will be added to all opened sources
|
|
static int AddGlobalDefine( const char* string );
|
|
// remove the given global define
|
|
static int RemoveGlobalDefine( const char* name );
|
|
// remove all global defines
|
|
static void RemoveAllGlobalDefines();
|
|
// set the base folder to load files from
|
|
static void SetBaseFolder( const char* path );
|
|
|
|
private:
|
|
int loaded; // set when a source file is loaded from file or memory
|
|
idStr filename; // file name of the script
|
|
idStr includepath; // path to include files
|
|
bool OSPath; // true if the file was loaded from an OS path
|
|
const punctuation_t* punctuations; // punctuations to use
|
|
int flags; // flags used for script parsing
|
|
idLexer* scriptstack; // stack with scripts of the source
|
|
idToken* tokens; // tokens to read first
|
|
define_t* defines; // list with macro definitions
|
|
define_t** definehash; // hash chain with defines
|
|
indent_t* indentstack; // stack with indents
|
|
int skip; // > 0 if skipping conditional code
|
|
const char* marker_p;
|
|
|
|
static define_t* globaldefines; // list with global defines added to every source loaded
|
|
|
|
private:
|
|
void PushIndent( int type, int skip );
|
|
void PopIndent( int* type, int* skip );
|
|
void PushScript( idLexer* script );
|
|
int ReadSourceToken( idToken* token );
|
|
int ReadLine( idToken* token );
|
|
int UnreadSourceToken( idToken* token );
|
|
int ReadDefineParms( define_t* define, idToken** parms, int maxparms );
|
|
int StringizeTokens( idToken* tokens, idToken* token );
|
|
int MergeTokens( idToken* t1, idToken* t2 );
|
|
int ExpandBuiltinDefine( idToken* deftoken, define_t* define, idToken** firsttoken, idToken** lasttoken );
|
|
int ExpandDefine( idToken* deftoken, define_t* define, idToken** firsttoken, idToken** lasttoken );
|
|
int ExpandDefineIntoSource( idToken* deftoken, define_t* define );
|
|
void AddGlobalDefinesToSource();
|
|
define_t* CopyDefine( define_t* define );
|
|
define_t* FindHashedDefine( define_t** definehash, const char* name );
|
|
int FindDefineParm( define_t* define, const char* name );
|
|
void AddDefineToHash( define_t* define, define_t** definehash );
|
|
static void PrintDefine( define_t* define );
|
|
static void FreeDefine( define_t* define );
|
|
static define_t* FindDefine( define_t* defines, const char* name );
|
|
static define_t* DefineFromString( const char* string );
|
|
define_t* CopyFirstDefine();
|
|
int Directive_include();
|
|
int Directive_undef();
|
|
int Directive_if_def( int type );
|
|
int Directive_ifdef();
|
|
int Directive_ifndef();
|
|
int Directive_else();
|
|
int Directive_endif();
|
|
// DG: use int instead of long for 64bit compatibility
|
|
int EvaluateTokens( idToken* tokens, signed int* intvalue, double* floatvalue, int integer );
|
|
int Evaluate( signed int* intvalue, double* floatvalue, int integer );
|
|
int DollarEvaluate( signed int* intvalue, double* floatvalue, int integer );
|
|
// DG end
|
|
int Directive_define();
|
|
int Directive_elif();
|
|
int Directive_if();
|
|
int Directive_line();
|
|
int Directive_error();
|
|
int Directive_warning();
|
|
int Directive_pragma();
|
|
void UnreadSignToken();
|
|
int Directive_eval();
|
|
int Directive_evalfloat();
|
|
int ReadDirective();
|
|
int DollarDirective_evalint();
|
|
int DollarDirective_evalfloat();
|
|
int ReadDollarDirective();
|
|
};
|
|
|
|
ID_INLINE const char* idParser::GetFileName() const
|
|
{
|
|
if( idParser::scriptstack )
|
|
{
|
|
return idParser::scriptstack->GetFileName();
|
|
}
|
|
else
|
|
{
|
|
return "";
|
|
}
|
|
}
|
|
|
|
ID_INLINE const int idParser::GetFileOffset() const
|
|
{
|
|
if( idParser::scriptstack )
|
|
{
|
|
return idParser::scriptstack->GetFileOffset();
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
ID_INLINE const ID_TIME_T idParser::GetFileTime() const
|
|
{
|
|
if( idParser::scriptstack )
|
|
{
|
|
return idParser::scriptstack->GetFileTime();
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
ID_INLINE const int idParser::GetLineNum() const
|
|
{
|
|
if( idParser::scriptstack )
|
|
{
|
|
return idParser::scriptstack->GetLineNum();
|
|
}
|
|
else
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
#endif /* !__PARSER_H__ */
|