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78 lines
2.6 KiB
C
78 lines
2.6 KiB
C
/* Define function and variables for the obsolete <regexp.h> interface.
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Copyright (C) 1996, 2000 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define __DO_NOT_DEFINE_COMPILE
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#include <regexp.h>
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/* Define the variables used for the interface. */
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char *loc1;
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char *loc2;
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/* Although we do not support the use we define this variable as well. */
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char *locs;
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/* Find the next match in STRING. The compiled regular expression is
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found in the buffer starting at EXPBUF. `loc1' will return the
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first character matched and `loc2' points to the next unmatched
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character. */
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extern int __step (const char *string, const char *expbuf);
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int
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__step (const char *string, const char *expbuf)
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{
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regmatch_t match; /* We only need info about the full match. */
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expbuf += __alignof (regex_t *);
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expbuf -= (expbuf - ((const char *) 0)) % __alignof__ (regex_t *);
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if (__regexec ((const regex_t *) expbuf, string, 1, &match, REG_NOTEOL)
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== REG_NOMATCH)
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return 0;
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loc1 = (char *) string + match.rm_so;
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loc2 = (char *) string + match.rm_eo;
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return 1;
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}
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weak_alias (__step, step)
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/* Match the beginning of STRING with the compiled regular expression
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in EXPBUF. If the match is successful `loc2' will contain the
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position of the first unmatched character. */
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extern int __advance (const char *string, const char *expbuf);
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int
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__advance (const char *string, const char *expbuf)
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{
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regmatch_t match; /* We only need info about the full match. */
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expbuf += __alignof__ (regex_t *);
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expbuf -= (expbuf - ((const char *) 0)) % __alignof__ (regex_t *);
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if (__regexec ((const regex_t *) expbuf, string, 1, &match, REG_NOTEOL)
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== REG_NOMATCH
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/* We have to check whether the check is at the beginning of the
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buffer. */
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|| match.rm_so != 0)
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return 0;
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loc2 = (char *) string + match.rm_eo;
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return 1;
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}
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weak_alias (__advance, advance)
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