localedata/collate-test.c

   1 /* Test collation function using real data.
   2    Copyright (C) 1997, 1999, 2000, 2003 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 <error.h>
  23 #include <locale.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27
  28
  29 struct lines
  30 {
  31   char *key;
  32   char *line;
  33 };
  34
  35 static int xstrcoll (const void *, const void *);
  36
  37 int
  38 main (int argc, char *argv[])
  39 {
  40   int result = 0;
  41   size_t nstrings, nstrings_max;
  42   struct lines *strings;
  43   char *line = NULL;
  44   size_t len = 0;
  45   size_t n;
  46
  47   if (argc < 2)
  48     error (1, 0, "usage: %s <random seed>", argv[0]);
  49
  50   setlocale (LC_ALL, "");
  51
  52   nstrings_max = 100;
  53   nstrings = 0;
  54   strings = (struct lines *) malloc (nstrings_max * sizeof (struct lines));
  55   if (strings == NULL)
  56     {
  57       perror (argv[0]);
  58       exit (1);
  59     }
  60
  61   while (1)
  62     {
  63       int l;
  64       if (getline (&line, &len, stdin) < 0)
  65         break;
  66
  67       if (nstrings == nstrings_max)
  68         {
  69           strings = (struct lines *) realloc (strings,
  70                                               (nstrings_max *= 2)
  71                                                * sizeof (*strings));
  72           if (strings == NULL)
  73             {
  74               perror (argv[0]);
  75               exit (1);
  76             }
  77         }
  78       strings[nstrings].line = strdup (line);
  79       l = strcspn (line, ":(;");
  80       while (l > 0 && isspace (line[l - 1]))
  81         --l;
  82       strings[nstrings].key = strndup (line, l);
  83       ++nstrings;
  84     }
  85   free (line);
  86
  87   /* First shuffle.  */
  88   srandom (atoi (argv[1]));
  89   for (n = 0; n < 10 * nstrings; ++n)
  90     {
  91       int r1, r2, r;
  92       size_t idx1 = random () % nstrings;
  93       size_t idx2 = random () % nstrings;
  94       struct lines tmp = strings[idx1];
  95       strings[idx1] = strings[idx2];
  96       strings[idx2] = tmp;
  97
  98       /* While we are at it a first little test.  */
  99       r1 = strcoll (strings[idx1].key, strings[idx2].key);
 100       r2 = strcoll (strings[idx2].key, strings[idx1].key);
 101       r = r1 * r2;
 102
 103       if (r > 0 || (r == 0 && r1 != 0) || (r == 0 && r2 != 0))
 104         printf ("`%s' and `%s' collate wrong: %d vs. %d\n",
 105                 strings[idx1].key, strings[idx2].key, r1, r2);
 106     }
 107
 108   /* Now sort.  */
 109   qsort (strings, nstrings, sizeof (struct lines), xstrcoll);
 110
 111   /* Print the result.  */
 112   for (n = 0; n < nstrings; ++n)
 113     {
 114       fputs (strings[n].line, stdout);
 115       free (strings[n].line);
 116       free (strings[n].key);
 117     }
 118   free (strings);
 119
 120   return result;
 121 }
 122
 123
 124 static int
 125 xstrcoll (ptr1, ptr2)
 126      const void *ptr1;
 127      const void *ptr2;
 128 {
 129   const struct lines *l1 = (const struct lines *) ptr1;
 130   const struct lines *l2 = (const struct lines *) ptr2;
 131
 132   return strcoll (l1->key, l2->key);
 133 }