localedata/xfrm-test.c

   1 /* Test collation function via transformation using real data.
   2    Copyright (C) 1997-2015 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, see
  18    <http://www.gnu.org/licenses/>.  */
  19
  20 #include <ctype.h>
  21 #include <error.h>
  22 #include <locale.h>
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27
  28 struct lines
  29 {
  30   char *xfrm;
  31   char *line;
  32 };
  33
  34 static int xstrcmp (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   if (argc < 2)
  47     error (1, 0, "usage: %s <random seed>", argv[0]);
  48
  49   setlocale (LC_ALL, "");
  50
  51   nstrings_max = 100;
  52   nstrings = 0;
  53   strings = (struct lines *) malloc (nstrings_max * sizeof (struct lines));
  54   if (strings == NULL)
  55     {
  56       perror (argv[0]);
  57       exit (1);
  58     }
  59
  60   while (1)
  61     {
  62       char saved, *newp;
  63       int needed;
  64       int l;
  65       if (getline (&line, &len, stdin) < 0)
  66         break;
  67
  68       if (nstrings == nstrings_max)
  69         {
  70           strings = (struct lines *) realloc (strings,
  71                                               (nstrings_max *= 2)
  72                                                * sizeof (*strings));
  73           if (strings == NULL)
  74             {
  75               perror (argv[0]);
  76               exit (1);
  77             }
  78         }
  79       strings[nstrings].line = strdup (line);
  80       l = strcspn (line, ":(;");
  81       while (l > 0 && isspace (line[l - 1]))
  82         --l;
  83
  84       saved = line[l];
  85       line[l] = '\0';
  86       needed = strxfrm (NULL, line, 0);
  87       newp = malloc (needed + 1);
  88       strxfrm (newp, line, needed + 1);
  89       strings[nstrings].xfrm = newp;
  90       line[l] = saved;
  91       ++nstrings;
  92     }
  93   free (line);
  94
  95   /* First shuffle.  */
  96   srandom (atoi (argv[1]));
  97   for (n = 0; n < 10 * nstrings; ++n)
  98     {
  99       int r1, r2, r;
 100       size_t idx1 = random () % nstrings;
 101       size_t idx2 = random () % nstrings;
 102       struct lines tmp = strings[idx1];
 103       strings[idx1] = strings[idx2];
 104       strings[idx2] = tmp;
 105
 106       /* While we are at it a first little test.  */
 107       r1 = strcmp (strings[idx1].xfrm, strings[idx2].xfrm);
 108       r2 = strcmp (strings[idx2].xfrm, strings[idx1].xfrm);
 109       r = -(r1 ^ r2);
 110       if (r)
 111         r /= abs (r1 ^ r2);
 112
 113       if (r < 0 || (r == 0 && (r1 != 0 || r2 != 0))
 114           || (r > 0 && (r1 ^ r2) >= 0))
 115         printf ("collate wrong: %d vs. %d\n", r1, r2);
 116     }
 117
 118   /* Now sort.  */
 119   qsort (strings, nstrings, sizeof (struct lines), xstrcmp);
 120
 121   /* Print the result.  */
 122   for (n = 0; n < nstrings; ++n)
 123     {
 124       fputs (strings[n].line, stdout);
 125       free (strings[n].line);
 126       free (strings[n].xfrm);
 127     }
 128   free (strings);
 129
 130   return result;
 131 }
 132
 133
 134 static int
 135 xstrcmp (ptr1, ptr2)
 136      const void *ptr1;
 137      const void *ptr2;
 138 {
 139   const struct lines *l1 = (const struct lines *) ptr1;
 140   const struct lines *l2 = (const struct lines *) ptr2;
 141
 142   return strcmp (l1->xfrm, l2->xfrm);
 143 }