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Add it for real.

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Akim Demaille
2006-06-07 07:58:28 +00:00
parent 2346344a08
commit 9f936c5e9c
1 changed files with 72 additions and 0 deletions
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src/flex-scanner.h Normal file
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/* Common parts between scan-code.l and scan-gram.l.
Copyright (C) 2006 Free Software Foundation, Inc.
This file is part of Bison, the GNU Compiler Compiler.
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 the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#ifndef FLEX_PREFIX
# error "FLEX_PREFIX not defined"
#endif
#include "system.h"
/* Pacify "gcc -Wmissing-prototypes" when flex 2.5.31 is used. */
int FLEX_PREFIX (get_lineno) (void);
FILE *FLEX_PREFIX (get_in) (void);
FILE *FLEX_PREFIX (get_out) (void);
int FLEX_PREFIX (get_leng) (void);
char *FLEX_PREFIX (get_text) (void);
void FLEX_PREFIX (set_lineno) (int);
void FLEX_PREFIX (set_in) (FILE *);
void FLEX_PREFIX (set_out) (FILE *);
int FLEX_PREFIX (get_debug) (void);
void FLEX_PREFIX (set_debug) (int);
int FLEX_PREFIX (lex_destroy) (void);
#define last_string FLEX_PREFIX (last_string)
/* It seems to be a nice "feature" of Flex that one cannot use yytext,
yyleng etc. when a prefix is given, since there is no longer a
#define, but rather the token is actually changed in the output.
*/
#define yyleng FLEX_PREFIX (leng)
#define yytext FLEX_PREFIX (text)
/* OBSTACK_FOR_STRING -- Used to store all the characters that we need to
keep (to construct ID, STRINGS etc.). Use the following macros to
use it.
Use STRING_GROW to append what has just been matched, and
STRING_FINISH to end the string (it puts the ending 0).
STRING_FINISH also stores this string in LAST_STRING, which can be
used, and which is used by STRING_FREE to free the last string. */
static struct obstack obstack_for_string;
#define STRING_GROW \
obstack_grow (&obstack_for_string, yytext, yyleng)
#define STRING_FINISH \
do { \
obstack_1grow (&obstack_for_string, '\0'); \
last_string = obstack_finish (&obstack_for_string); \
} while (0)
#define STRING_FREE \
obstack_free (&obstack_for_string, FLEX_PREFIX (last_string))