localedata/dump-ctype.c

   1 /* Dump the character classes and character maps of a locale to a bunch
   2    of individual files which can be processed with diff, sed etc.
   3    Copyright (C) 2000 Free Software Foundation, Inc.
   4    This file is part of the GNU C Library.
   5    Contributed by Bruno Haible <haible@clisp.cons.org>, 2000.
   6
   7    The GNU C Library is free software; you can redistribute it and/or
   8    modify it under the terms of the GNU Lesser General Public
   9    License as published by the Free Software Foundation; either
  10    version 2.1 of the License, or (at your option) any later version.
  11
  12    The GNU C Library is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15    Lesser General Public License for more details.
  16
  17    You should have received a copy of the GNU Lesser General Public
  18    License along with the GNU C Library; if not, write to the Free
  19    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  20    02111-1307 USA.  */
  21
  22 /* Usage example:
  23      $ dump-ctype de_DE.UTF-8
  24  */
  25
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <wctype.h>
  29 #include <locale.h>
  30 #include <sys/stat.h>
  31 #include <unistd.h>
  32 #include <errno.h>
  33
  34 static const char *program_name = "dump-ctype";
  35 static const char *locale;
  36
  37 static const char *class_names[] =
  38   {
  39     "alnum", "alpha", "blank", "cntrl", "digit", "graph", "lower",
  40     "print", "punct", "space", "upper", "xdigit"
  41   };
  42
  43 static const char *map_names[] =
  44   {
  45     "tolower", "toupper", "totitle"
  46   };
  47
  48 static void dump_class (const char *class_name)
  49 {
  50   wctype_t class;
  51   FILE *f;
  52   unsigned int ch;
  53
  54   class = wctype (class_name);
  55   if (class == (wctype_t) 0)
  56     {
  57       fprintf (stderr, "%s %s: noexistent class %s\n", program_name,
  58                locale, class_name);
  59       return;
  60     }
  61
  62   f = fopen (class_name, "w");
  63   if (f == NULL)
  64     {
  65       fprintf (stderr, "%s %s: cannot open file %s/%s\n", program_name,
  66                locale, locale, class_name);
  67       exit (1);
  68     }
  69
  70   for (ch = 0; ch < 0x10000; ch++)
  71     if (iswctype (ch, class))
  72       fprintf (f, "0x%04X\n", ch);
  73
  74   if (ferror (f) || fclose (f))
  75     {
  76       fprintf (stderr, "%s %s: I/O error on file %s/%s\n", program_name,
  77                locale, locale, class_name);
  78       exit (1);
  79     }
  80 }
  81
  82 static void dump_map (const char *map_name)
  83 {
  84   wctrans_t map;
  85   FILE *f;
  86   unsigned int ch;
  87
  88   map = wctrans (map_name);
  89   if (map == (wctrans_t) 0)
  90     {
  91       fprintf (stderr, "%s %s: noexistent map %s\n", program_name,
  92                locale, map_name);
  93       return;
  94     }
  95
  96   f = fopen (map_name, "w");
  97   if (f == NULL)
  98     {
  99       fprintf (stderr, "%s %s: cannot open file %s/%s\n", program_name,
 100                locale, locale, map_name);
 101       exit (1);
 102     }
 103
 104   for (ch = 0; ch < 0x10000; ch++)
 105     if (towctrans (ch, map) != ch)
 106       fprintf (f, "0x%04X\t0x%04X\n", ch, towctrans (ch, map));
 107
 108   if (ferror (f) || fclose (f))
 109     {
 110       fprintf (stderr, "%s %s: I/O error on file %s/%s\n", program_name,
 111                locale, locale, map_name);
 112       exit (1);
 113     }
 114 }
 115
 116 int
 117 main (int argc, char *argv[])
 118 {
 119   size_t i;
 120
 121   if (argc != 2)
 122     {
 123       fprintf (stderr, "Usage: dump-ctype locale\n");
 124       exit (1);
 125     }
 126   locale = argv[1];
 127
 128   if (setlocale (LC_ALL, locale) == NULL)
 129     {
 130       fprintf (stderr, "%s: setlocale cannot switch to locale %s\n",
 131                program_name, locale);
 132       exit (1);
 133     }
 134
 135   if (mkdir (locale, 0777) < 0)
 136     {
 137       char buf[100];
 138       int save_errno = errno;
 139
 140       sprintf (buf, "%s: cannot create directory %s", program_name, locale);
 141       errno = save_errno;
 142       perror (buf);
 143       exit (1);
 144     }
 145
 146   if (chdir (locale) < 0)
 147     {
 148       char buf[100];
 149       int save_errno = errno;
 150
 151       sprintf (buf, "%s: cannot chdir to %s", program_name, locale);
 152       errno = save_errno;
 153       perror (buf);
 154       exit (1);
 155     }
 156
 157   for (i = 0; i < sizeof (class_names) / sizeof (class_names[0]); i++)
 158     dump_class (class_names[i]);
 159
 160   for (i = 0; i < sizeof (map_names) / sizeof (map_names[0]); i++)
 161     dump_map (map_names[i]);
 162
 163   return 0;
 164 }