1 files changed, 34 insertions, 0 deletions
diff --git a/lib/substring.c b/lib/substring.c
new file mode 100644
index 0000000..fa48323
--- /dev/null
+++ b/lib/substring.c
@@ -0,0 +1,34 @@
+/* substring.c -- extract substring.
+   $Id: substring.c,v 1.5 2007/07/01 21:20:31 karl Exp $
+
+   Copyright (C) 1999, 2004, 2007 Free Software Foundation, Inc.
+
+   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/>.  */
+
+#include "system.h"
+
+char *
+substring (const char *start, const char *end)
+{
+  char *result = xmalloc (end - start + 1);
+  char *scan_result = result;
+  const char *scan = start;
+
+  while (scan < end)
+    *scan_result++ = *scan++;
+
+  *scan_result = 0;
+  return result;
+}
+