localedata/xfrm-test.c

   1 /* Test collation function via transformation using real data.
   2    Copyright (C) 1997, 1998, 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 *xfrm;
  32   char *line;
  33 };
  34
  35 static int xstrcmp (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       char saved, *newp;
  64       int needed;
  65       int l;
  66       if (getline (&line, &len, stdin) < 0)
  67         break;
  68
  69       if (nstrings == nstrings_max)
  70         {
  71           strings = (struct lines *) realloc (strings,
  72                                               (nstrings_max *= 2)
  73                                                * sizeof (*strings));
  74           if (strings == NULL)
  75             {
  76               perror (argv[0]);
  77               exit (1);
  78             }
  79         }
  80       strings[nstrings].line = strdup (line);
  81       l = strcspn (line, ":(;");
  82       while (l > 0 && isspace (line[l - 1]))
  83         --l;
  84
  85       saved = line[l];
  86       line[l] = '\0';
  87       needed = strxfrm (NULL, line, 0);
  88       newp = malloc (needed + 1);
  89       strxfrm (newp, line, needed + 1);
  90       strings[nstrings].xfrm = newp;
  91       line[l] = saved;
  92       ++nstrings;
  93     }
  94   free (line);
  95
  96   /* First shuffle.  */
  97   srandom (atoi (argv[1]));
  98   for (n = 0; n < 10 * nstrings; ++n)
  99     {
 100       int r1, r2, r;
 101       size_t idx1 = random () % nstrings;
 102       size_t idx2 = random () % nstrings;
 103       struct lines tmp = strings[idx1];
 104       strings[idx1] = strings[idx2];
 105       strings[idx2] = tmp;
 106
 107       /* While we are at it a first little test.  */
 108       r1 = strcmp (strings[idx1].xfrm, strings[idx2].xfrm);
 109       r2 = strcmp (strings[idx2].xfrm, strings[idx1].xfrm);
 110       r = -(r1 ^ r2);
 111       if (r)
 112         r /= abs (r1 ^ r2);
 113
 114       if (r < 0 || (r == 0 && (r1 != 0 || r2 != 0))
 115           || (r > 0 && (r1 ^ r2) >= 0))
 116         printf ("collate wrong: %d vs. %d\n", r1, r2);
 117     }
 118
 119   /* Now sort.  */
 120   qsort (strings, nstrings, sizeof (struct lines), xstrcmp);
 121
 122   /* Print the result.  */
 123   for (n = 0; n < nstrings; ++n)
 124     {
 125       fputs (strings[n].line, stdout);
 126       free (strings[n].line);
 127       free (strings[n].xfrm);
 128     }
 129   free (strings);
 130
 131   return result;
 132 }
 133
 134
 135 static int
 136 xstrcmp (ptr1, ptr2)
 137      const void *ptr1;
 138      const void *ptr2;
 139 {
 140   const struct lines *l1 = (const struct lines *) ptr1;
 141   const struct lines *l2 = (const struct lines *) ptr2;
 142
 143   return strcmp (l1->xfrm, l2->xfrm);
 144 }