localedata/collate-test.c

   1 /* Test collation function using real data.
   2    Copyright (C) 1997, 1999, 2000 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
   5
   6    The GNU C Library is free software; you can redistribute it and/or
   7    modify it under the terms of the GNU Lesser General Public
   8    License as published by the Free Software Foundation; either
   9    version 2.1 of the License, or (at your option) any later version.
  10
  11    The GNU C Library is distributed in the hope that it will be useful,
  12    but WITHOUT ANY WARRANTY; without even the implied warranty of
  13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14    Lesser General Public License for more details.
  15
  16    You should have received a copy of the GNU Lesser General Public
  17    License along with the GNU C Library; if not, write to the Free
  18    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  19    02111-1307 USA.  */
  20
  21 #include <ctype.h>
  22 #include <locale.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27
  28 struct lines
  29 {
  30   const char *key;
  31   const char *line;
  32 };
  33
  34 static int xstrcoll (const void *, const void *);
  35
  36 int
  37 main (int argc, char *argv[])
  38 {
  39   int result = 0;
  40   size_t nstrings, nstrings_max;
  41   struct lines *strings;
  42   char *line = NULL;
  43   size_t len = 0;
  44   size_t n;
  45
  46   setlocale (LC_ALL, "");
  47
  48   nstrings_max = 100;
  49   nstrings = 0;
  50   strings = (struct lines *) malloc (nstrings_max * sizeof (struct lines));
  51   if (strings == NULL)
  52     {
  53       perror (argv[0]);
  54       exit (1);
  55     }
  56
  57   while (1)
  58     {
  59       int l;
  60       if (getline (&line, &len, stdin) < 0)
  61         break;
  62
  63       if (nstrings == nstrings_max)
  64         {
  65           strings = (struct lines *) realloc (strings,
  66                                               (nstrings_max *= 2
  67                                                * sizeof (*strings)));
  68           if (strings == NULL)
  69             {
  70               perror (argv[0]);
  71               exit (1);
  72             }
  73         }
  74       strings[nstrings].line = strdup (line);
  75       l = strcspn (line, ":(;");
  76       while (l > 0 && isspace (line[l - 1]))
  77         --l;
  78       strings[nstrings].key = strndup (line, l);
  79       ++nstrings;
  80     }
  81
  82   /* First shuffle.  */
  83   srandom (atoi (argv[1]));
  84   for (n = 0; n < 10 * nstrings; ++n)
  85     {
  86       int r1, r2, r;
  87       size_t idx1 = random () % nstrings;
  88       size_t idx2 = random () % nstrings;
  89       struct lines tmp = strings[idx1];
  90       strings[idx1] = strings[idx2];
  91       strings[idx2] = tmp;
  92
  93       /* While we are at it a first little test.  */
  94       r1 = strcoll (strings[idx1].key, strings[idx2].key);
  95       r2 = strcoll (strings[idx2].key, strings[idx1].key);
  96       r = r1 * r2;
  97
  98       if (r > 0 || (r == 0 && r1 != 0) || (r == 0 && r2 != 0))
  99         printf ("`%s' and `%s' collate wrong: %d vs. %d\n",
 100                 strings[idx1].key, strings[idx2].key, r1, r2);
 101     }
 102
 103   /* Now sort.  */
 104   qsort (strings, nstrings, sizeof (struct lines), xstrcoll);
 105
 106   /* Print the result.  */
 107   for (n = 0; n < nstrings; ++n)
 108     fputs (strings[n].line, stdout);
 109
 110   return result;
 111 }
 112
 113
 114 static int
 115 xstrcoll (ptr1, ptr2)
 116      const void *ptr1;
 117      const void *ptr2;
 118 {
 119   const struct lines *l1 = (const struct lines *) ptr1;
 120   const struct lines *l2 = (const struct lines *) ptr2;
 121
 122   return strcoll (l1->key, l2->key);
 123 }