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/* Define function and variables for the obsolete <regexp.h> interface.
Copyright (C) 1996-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
/* We don't include regexp.h here because of the macros it requires, and
because it now contains an unconditional #warning. */
#include <regex.h>
/* Define the variables used for the interface. */
char *loc1;
char *loc2;
/* Although we do not support the use we define this variable as well. */
char *locs;
/* Find the next match in STRING. The compiled regular expression is
found in the buffer starting at EXPBUF. `loc1' will return the
first character matched and `loc2' points to the next unmatched
character. */
int
__step (const char *string, const char *expbuf)
{
regmatch_t match; /* We only need info about the full match. */
expbuf += __alignof (regex_t *);
expbuf -= (expbuf - ((const char *) 0)) % __alignof__ (regex_t *);
if (__regexec ((const regex_t *) expbuf, string, 1, &match, REG_NOTEOL)
== REG_NOMATCH)
return 0;
loc1 = (char *) string + match.rm_so;
loc2 = (char *) string + match.rm_eo;
return 1;
}
weak_alias (__step, step)
/* Match the beginning of STRING with the compiled regular expression
in EXPBUF. If the match is successful `loc2' will contain the
position of the first unmatched character. */
int
__advance (const char *string, const char *expbuf)
{
regmatch_t match; /* We only need info about the full match. */
expbuf += __alignof__ (regex_t *);
expbuf -= (expbuf - ((const char *) 0)) % __alignof__ (regex_t *);
if (__regexec ((const regex_t *) expbuf, string, 1, &match, REG_NOTEOL)
== REG_NOMATCH
/* We have to check whether the check is at the beginning of the
buffer. */
|| match.rm_so != 0)
return 0;
loc2 = (char *) string + match.rm_eo;
return 1;
}
weak_alias (__advance, advance)
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