Yasm Assembler mainline development tree (ffmpeg 依赖)
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/* $IdPath$
* NASM-compatible parser
*
* Copyright (C) 2001 Peter Johnson
*
* This file is part of YASM.
*
* YASM 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.
*
* YASM 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 the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include "util.h"
#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
#endif
#include "errwarn.h"
#include "bytecode.h"
#include "section.h"
#include "objfmt.h"
#include "preproc.h"
#include "parser.h"
RCSID("$IdPath$");
extern FILE *nasm_parser_in;
extern int nasm_parser_debug;
extern int nasm_parser_parse(void);
int (*nasm_parser_yyinput) (char *buf, int max_size);
objfmt *nasm_parser_objfmt;
sectionhead nasm_parser_sections;
section *nasm_parser_cur_section;
static sectionhead *
nasm_parser_do_parse(parser *p, objfmt *of, FILE *f)
{
p->current_pp->initialize(of, f);
nasm_parser_in = f;
nasm_parser_yyinput = p->current_pp->input;
nasm_parser_objfmt = of;
/* Initialize section list */
nasm_parser_cur_section = sections_initialize(&nasm_parser_sections, of);
/* only temporary */
nasm_parser_debug = 0;
nasm_parser_parse();
return &nasm_parser_sections;
}
/* Define valid preprocessors to use with this parser */
static preproc *nasm_parser_preprocs[] = {
&raw_preproc,
NULL
};
/* Define parser structure -- see parser.h for details */
parser nasm_parser = {
"NASM-compatible parser",
"nasm",
nasm_parser_preprocs,
&raw_preproc,
nasm_parser_do_parse
};