Yasm Assembler mainline development tree (ffmpeg 依赖)
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/* $IdPath$
* Parser module interface header file
*
* 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
*/
#ifndef YASM_PARSER_H
#define YASM_PARSER_H
/* Interface to the parser module(s) -- the "front end" of the assembler */
struct parser {
/* one-line description of the parser */
const char *name;
/* keyword used to select parser on the command line */
const char *keyword;
/* NULL-terminated list of preprocessors that are valid to use with this
* parser. The raw preprocessor (raw_preproc) should always be in this
* list so it's always possible to have no preprocessing done.
*/
preproc **preprocs;
/* Current preprocessor (set to the default at compile time) */
/*@dependent@*/ preproc *current_pp;
/* Main entrance point for the parser.
*
* The parser needs access to both the object format module (for format-
* specific directives and segment names), and the preprocessor
* (it uses current_pp as set either at compile-time or by parser_setpp).
*
* This function also takes the FILE * to the initial starting file, but
* not the filename (which is in a global variable and is not
* parser-specific).
*
* This function returns the starting section of a linked list of sections
* (whatever was in the file).
*/
sectionhead *(*do_parse) (parser *p, FILE *f);
};
/* Generic functions for all parsers - implemented in src/parser.c */
/* Sets current_pp within p by searching the preprocs list for a preproc
* matching pp_keyword. Returns nonzero if no match was found.
*/
int parser_setpp(/*@partial@*/ parser *p, const char *pp_keyword);
/* Lists preprocessors available for p. Calls printfunc with the name
* and keyword of each available preprocessor.
*/
void parser_listpp(parser *p,
void (*printfunc) (const char *name, const char *keyword));
/* Finds a parser based on its keyword. Returns NULL if no match was found.
*/
/*@null@*/ parser *find_parser(const char *keyword);
/* Lists all available parsers. Calls printfunc with the name and keyword
* of each available parser.
*/
void list_parsers(void (*printfunc) (const char *name, const char *keyword));
#endif