quakeforge/tools/qfcc/include/rua-lang.h
Bill Currie 071e529b0e [qfcc] Implement parsing side of ... macros
Expansion is not yet implemented (need __VA_OPT__ and __VA_ARGS__), but
this gets scheme compiling.
2023-10-30 13:28:01 +09:00

102 lines
3 KiB
C

/*
rua-lang.h
Shared data stuctures for lexing and parsing.
Copyright (C) 2023 Bill Currie <bill@taniwha.org>
This program 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 2
of the License, or (at your option) any later version.
This program 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 this program; if not, write to:
Free Software Foundation, Inc.
59 Temple Place - Suite 330
Boston, MA 02111-1307, USA
*/
#ifndef __rua_lang_h
#define __rua_lang_h
#include "tools/qfcc/source/qc-parse.h"
typedef struct rua_loc_s {
int first_line, first_column;
int last_line, last_column;
int file;
} rua_loc_t;
typedef struct symtab_s symtab_t;
typedef struct rua_expr_s {
struct rua_expr_s *next;
rua_loc_t location;
int textlen;
int token;
int id; // arg expansion id (1...)
const char *text;
} rua_expr_t;
typedef struct rua_macro_s {
const char *name;
symtab_t *params;
rua_expr_t *tokens;
rua_expr_t **tail;
int num_tokens;
int num_params;
} rua_macro_t;
typedef struct rua_tok_s {
rua_loc_t location;
int textlen;
const char *text;
union {
struct {
void *pointer; // mirrors pointer in QC_YYSTYPE
char str_text[8];// if len < 8 and spec not used
int token; // when recording macros
};
QC_YYSTYPE value;
struct dstring_s *dstr;
rua_macro_t *macro;
};
} rua_tok_t;
rua_macro_t *rua_start_macro (const char *name, bool params, void *scanner);
rua_macro_t *rua_macro_param (rua_macro_t *macro, rua_tok_t *token,
void *scanner);
rua_macro_t *rua_end_params (rua_macro_t *macro, void *scanner);
rua_macro_t *rua_macro_append (rua_macro_t *macro, rua_tok_t *token,
void *scanner);
void rua_macro_finish (rua_macro_t *macro, void *scanner);
rua_macro_t *rua_macro_arg (rua_tok_t *token, void *scanner);
void rua_start_pragma (void *scanner);
void rua_start_text (void *scanner);
void rua_start_expr (void *scanner);
void rua_start_include (void *scanner);
void rua_expand_on (void *scanner);
void rua_expand_off (void *scanner);
void rua_end_directive (void *scanner);
void rua_start_if (bool expand, void *scanner);
void rua_if (bool pass, void *scanner);
void rua_else (bool pass, const char *tok, void *scanner);
void rua_endif (void *scanner);
bool rua_defined (const char *sym, void *scanner);
void rua_undefine (const char *sym, void *scanner);
void rua_include_file (const char *name, void *scanner);
void rua_embed_file (const char *name, void *scanner);
int rua_parse_define (const char *def);
#include "tools/qfcc/source/pre-parse.h"
#endif//__rua_lang_h