1 files changed, 43 insertions, 0 deletions
diff --git a/lib/strcspn.c b/lib/strcspn.c
new file mode 100644
index 0000000..a17357e
--- /dev/null
+++ b/lib/strcspn.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 1995 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 2, 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, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#ifdef HAVE_STRING_H
+# include <string.h>
+#else
+# include <strings.h>
+#endif
+
+/* Return the length of the maximum inital segment of S
+   which contains no characters from REJECT.  */
+size_t
+strcspn (s, reject)
+     register const char *s;
+     register const char *reject;
+{
+  register size_t count = 0;
+
+  while (*s != '\0')
+    if (strchr (reject, *s++) == NULL)
+      ++count;
+    else
+      return count;
+
+  return count;
+}