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: }