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-rw-r--r--misc/regexp.c76
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+/* Define function and variables for the obsolete <regexp.h> interface.
+ Copyright (C) 1996 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 Library General Public License as
+ published by the Free Software Foundation; either version 2 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
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
+
+#define __DO_NOT_DEFINE_COMPILE
+#include <regexp.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 ((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 ((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)