locale/programs/ld-name.c

   1 /* Copyright (C) 1998,1999,2000,2001,2002,2005 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License version 2 as
   7    published by the Free Software Foundation.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #ifdef HAVE_CONFIG_H
  19 # include <config.h>
  20 #endif
  21
  22 #include <langinfo.h>
  23 #include <string.h>
  24 #include <sys/uio.h>
  25
  26 #include <assert.h>
  27
  28 #include "localedef.h"
  29 #include "localeinfo.h"
  30 #include "locfile.h"
  31
  32
  33 /* The real definition of the struct for the LC_NAME locale.  */
  34 struct locale_name_t
  35 {
  36   const char *name_fmt;
  37   const char *name_gen;
  38   const char *name_mr;
  39   const char *name_mrs;
  40   const char *name_miss;
  41   const char *name_ms;
  42 };
  43
  44
  45 static void
  46 name_startup (struct linereader *lr, struct localedef_t *locale,
  47                int ignore_content)
  48 {
  49   if (!ignore_content)
  50     locale->categories[LC_NAME].name =
  51       (struct locale_name_t *) xcalloc (1, sizeof (struct locale_name_t));
  52
  53   if (lr != NULL)
  54     {
  55       lr->translate_strings = 1;
  56       lr->return_widestr = 0;
  57     }
  58 }
  59
  60
  61 void
  62 name_finish (struct localedef_t *locale, const struct charmap_t *charmap)
  63 {
  64   struct locale_name_t *name = locale->categories[LC_NAME].name;
  65   int nothing = 0;
  66
  67   /* Now resolve copying and also handle completely missing definitions.  */
  68   if (name == NULL)
  69     {
  70       /* First see whether we were supposed to copy.  If yes, find the
  71          actual definition.  */
  72       if (locale->copy_name[LC_NAME] != NULL)
  73         {
  74           /* Find the copying locale.  This has to happen transitively since
  75              the locale we are copying from might also copying another one.  */
  76           struct localedef_t *from = locale;
  77
  78           do
  79             from = find_locale (LC_NAME, from->copy_name[LC_NAME],
  80                                 from->repertoire_name, charmap);
  81           while (from->categories[LC_NAME].name == NULL
  82                  && from->copy_name[LC_NAME] != NULL);
  83
  84           name = locale->categories[LC_NAME].name
  85             = from->categories[LC_NAME].name;
  86         }
  87
  88       /* If there is still no definition issue an warning and create an
  89          empty one.  */
  90       if (name == NULL)
  91         {
  92           if (! be_quiet)
  93             WITH_CUR_LOCALE (error (0, 0, _("\
  94 No definition for %s category found"), "LC_NAME"));
  95           name_startup (NULL, locale, 0);
  96           name = locale->categories[LC_NAME].name;
  97           nothing = 1;
  98         }
  99     }
 100
 101   if (name->name_fmt == NULL)
 102     {
 103       if (! nothing)
 104         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),
 105                                 "LC_NAME", "name_fmt"));
 106       /* Use as the default value the value of the i18n locale.  */
 107       name->name_fmt = "%p%t%g%t%m%t%f";
 108     }
 109   else
 110     {
 111       /* We must check whether the format string contains only the
 112          allowed escape sequences.  */
 113       const char *cp = name->name_fmt;
 114
 115       if (*cp == '\0')
 116         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' must not be empty"),
 117                                 "LC_NAME", "name_fmt"));
 118       else
 119         while (*cp != '\0')
 120           {
 121             if (*cp == '%')
 122               {
 123                 if (*++cp == 'R')
 124                   /* Romanize-flag.  */
 125                   ++cp;
 126                 if (strchr ("dfFgGlomMpsSt", *cp) == NULL)
 127                   {
 128                     WITH_CUR_LOCALE (error (0, 0, _("\
 129 %s: invalid escape sequence in field `%s'"), "LC_NAME", "name_fmt"));
 130                     break;
 131                   }
 132               }
 133             ++cp;
 134           }
 135     }
 136
 137 #define TEST_ELEM(cat) \
 138   if (name->cat == NULL)                                                      \
 139     {                                                                         \
 140       if (verbose && ! nothing)                                               \
 141         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),        \
 142                                 "LC_NAME", #cat));                            \
 143       name->cat = "";                                                         \
 144     }
 145
 146   TEST_ELEM (name_gen);
 147   TEST_ELEM (name_mr);
 148   TEST_ELEM (name_mrs);
 149   TEST_ELEM (name_miss);
 150   TEST_ELEM (name_ms);
 151 }
 152
 153
 154 void
 155 name_output (struct localedef_t *locale, const struct charmap_t *charmap,
 156              const char *output_path)
 157 {
 158   struct locale_name_t *name = locale->categories[LC_NAME].name;
 159   struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_NAME)];
 160   struct locale_file data;
 161   uint32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_NAME)];
 162   size_t cnt = 0;
 163
 164   data.magic = LIMAGIC (LC_NAME);
 165   data.n = _NL_ITEM_INDEX (_NL_NUM_LC_NAME);
 166   iov[cnt].iov_base = (void *) &data;
 167   iov[cnt].iov_len = sizeof (data);
 168   ++cnt;
 169
 170   iov[cnt].iov_base = (void *) idx;
 171   iov[cnt].iov_len = sizeof (idx);
 172   ++cnt;
 173
 174   idx[cnt - 2] = iov[0].iov_len + iov[1].iov_len;
 175   iov[cnt].iov_base = (void *) name->name_fmt;
 176   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 177   ++cnt;
 178
 179   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 180   iov[cnt].iov_base = (void *) name->name_gen;
 181   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 182   ++cnt;
 183
 184   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 185   iov[cnt].iov_base = (void *) name->name_mr;
 186   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 187   ++cnt;
 188
 189   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 190   iov[cnt].iov_base = (void *) name->name_mrs;
 191   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 192   ++cnt;
 193
 194   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 195   iov[cnt].iov_base = (void *) name->name_miss;
 196   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 197   ++cnt;
 198
 199   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 200   iov[cnt].iov_base = (void *) name->name_ms;
 201   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 202   ++cnt;
 203
 204   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 205   iov[cnt].iov_base = (void *) charmap->code_set_name;
 206   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 207   ++cnt;
 208
 209   assert (cnt == 2 + _NL_ITEM_INDEX (_NL_NUM_LC_NAME));
 210
 211   write_locale_data (output_path, LC_NAME, "LC_NAME",
 212                      2 + _NL_ITEM_INDEX (_NL_NUM_LC_NAME), iov);
 213 }
 214
 215
 216 /* The parser for the LC_NAME section of the locale definition.  */
 217 void
 218 name_read (struct linereader *ldfile, struct localedef_t *result,
 219            const struct charmap_t *charmap, const char *repertoire_name,
 220            int ignore_content)
 221 {
 222   struct locale_name_t *name;
 223   struct token *now;
 224   struct token *arg;
 225   enum token_t nowtok;
 226
 227   /* The rest of the line containing `LC_NAME' must be empty.  */
 228   lr_ignore_rest (ldfile, 1);
 229
 230   do
 231     {
 232       now = lr_token (ldfile, charmap, result, NULL, verbose);
 233       nowtok = now->tok;
 234     }
 235   while (nowtok == tok_eol);
 236
 237   /* If we see `copy' now we are almost done.  */
 238   if (nowtok == tok_copy)
 239     {
 240       handle_copy (ldfile, charmap, repertoire_name, result, tok_lc_name,
 241                    LC_NAME, "LC_NAME", ignore_content);
 242       return;
 243     }
 244
 245   /* Prepare the data structures.  */
 246   name_startup (ldfile, result, ignore_content);
 247   name = result->categories[LC_NAME].name;
 248
 249   while (1)
 250     {
 251       /* Of course we don't proceed beyond the end of file.  */
 252       if (nowtok == tok_eof)
 253         break;
 254
 255       /* Ignore empty lines.  */
 256       if (nowtok == tok_eol)
 257         {
 258           now = lr_token (ldfile, charmap, result, NULL, verbose);
 259           nowtok = now->tok;
 260           continue;
 261         }
 262
 263       switch (nowtok)
 264         {
 265 #define STR_ELEM(cat) \
 266         case tok_##cat:                                                       \
 267           /* Ignore the rest of the line if we don't need the input of        \
 268              this line.  */                                                   \
 269           if (ignore_content)                                                 \
 270             {                                                                 \
 271               lr_ignore_rest (ldfile, 0);                                     \
 272               break;                                                          \
 273             }                                                                 \
 274                                                                               \
 275           arg = lr_token (ldfile, charmap, result, NULL, verbose);            \
 276           if (arg->tok != tok_string)                                         \
 277             goto err_label;                                                   \
 278           if (name->cat != NULL)                                              \
 279             lr_error (ldfile, _("%s: field `%s' declared more than once"),    \
 280                       "LC_NAME", #cat);                                       \
 281           else if (!ignore_content && arg->val.str.startmb == NULL)           \
 282             {                                                                 \
 283               lr_error (ldfile, _("%s: unknown character in field `%s'"),     \
 284                         "LC_NAME", #cat);                                     \
 285               name->cat = "";                                                 \
 286             }                                                                 \
 287           else if (!ignore_content)                                           \
 288             name->cat = arg->val.str.startmb;                                 \
 289           break
 290
 291           STR_ELEM (name_fmt);
 292           STR_ELEM (name_gen);
 293           STR_ELEM (name_mr);
 294           STR_ELEM (name_mrs);
 295           STR_ELEM (name_miss);
 296           STR_ELEM (name_ms);
 297
 298         case tok_end:
 299           /* Next we assume `LC_NAME'.  */
 300           arg = lr_token (ldfile, charmap, result, NULL, verbose);
 301           if (arg->tok == tok_eof)
 302             break;
 303           if (arg->tok == tok_eol)
 304             lr_error (ldfile, _("%s: incomplete `END' line"), "LC_NAME");
 305           else if (arg->tok != tok_lc_name)
 306             lr_error (ldfile, _("\
 307 %1$s: definition does not end with `END %1$s'"), "LC_NAME");
 308           lr_ignore_rest (ldfile, arg->tok == tok_lc_name);
 309           return;
 310
 311         default:
 312         err_label:
 313           SYNTAX_ERROR (_("%s: syntax error"), "LC_NAME");
 314         }
 315
 316       /* Prepare for the next round.  */
 317       now = lr_token (ldfile, charmap, result, NULL, verbose);
 318       nowtok = now->tok;
 319     }
 320
 321   /* When we come here we reached the end of the file.  */
 322   lr_error (ldfile, _("%s: premature end of file"), "LC_NAME");
 323 }