diplodocus.org Git - nmh/blob - sbr/strindex.c

   1 /* strindex.c -- "unsigned" lexical index
   2  *
   3  * This code is Copyright (c) 2002, by the authors of nmh.  See the
   4  * COPYRIGHT file in the root directory of the nmh distribution for
   5  * complete copyright information.
   6  */
   7
   8 #include "h/mh.h"
   9 #include "strindex.h"
  10 #include "uprf.h"
  11
  12 int
  13 stringdex (char *p1, char *p2)
  14 {
  15     char *p;
  16
  17     if (p1 == NULL || p2 == NULL)
  18         return -1;
  19
  20     for (p = p2; *p; p++)
  21         if (uprf (p, p1))
  22             return p - p2;
  23
  24     return -1;
  25 }