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/* Common parts between scan-code.l, scan-gram.l, and scan-skel.l.
Copyright (C) 2006, 2009-2011 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 3 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, see <http://www.gnu.org/licenses/>. */
#ifndef FLEX_PREFIX
# error "FLEX_PREFIX not defined"
#endif
/* 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.
However, this is not true for Flex 2.5.4. */
#ifndef yyleng
# define yyleng FLEX_PREFIX (leng)
#endif
#ifndef yytext
# define yytext FLEX_PREFIX (text)
#endif
/* Non-reentrant scanners generated by Flex 2.5.9 and later (and some earlier
versions according to the Flex manual) leak memory if yylex_destroy is not
invoked. However, yylex_destroy is not defined before Flex 2.5.9, so give
an implementation here that at least appears to work with Flex 2.5.4. */
#if !defined(YY_FLEX_MAJOR_VERSION) || YY_FLEX_MAJOR_VERSION < 2 \
|| (YY_FLEX_MAJOR_VERSION == 2 \
&& (!defined(YY_FLEX_MINOR_VERSION) || YY_FLEX_MINOR_VERSION < 5 \
|| (YY_FLEX_MINOR_VERSION == 5 \
&& (!defined(YY_FLEX_SUBMINOR_VERSION) \
|| YY_FLEX_SUBMINOR_VERSION < 9))))
# define yylex_destroy() yy_delete_buffer (YY_CURRENT_BUFFER)
#endif
/* 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. */
#ifndef FLEX_NO_OBSTACK
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, last_string)
#endif
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