1 files changed, 76 insertions, 0 deletions
diff --git a/misc/regexp.c b/misc/regexp.c
new file mode 100644
index 0000000000..34019aeb1a
--- /dev/null
+++ b/misc/regexp.c
@@ -0,0 +1,76 @@
+/* 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)