locale/programs/ld-name.c

   1 /* Copyright (C) 1998, 1999, 2000, 2001 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    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 # include <config.h>
  22 #endif
  23
  24 #include <langinfo.h>
  25 #include <string.h>
  26 #include <sys/uio.h>
  27
  28 #include <assert.h>
  29
  30 #include "localeinfo.h"
  31 #include "locfile.h"
  32
  33
  34 /* The real definition of the struct for the LC_NAME locale.  */
  35 struct locale_name_t
  36 {
  37   const char *name_fmt;
  38   const char *name_gen;
  39   const char *name_mr;
  40   const char *name_mrs;
  41   const char *name_miss;
  42   const char *name_ms;
  43 };
  44
  45
  46 static void
  47 name_startup (struct linereader *lr, struct localedef_t *locale,
  48                int ignore_content)
  49 {
  50   if (!ignore_content)
  51     locale->categories[LC_NAME].name =
  52       (struct locale_name_t *) xcalloc (1, sizeof (struct locale_name_t));
  53
  54   if (lr != NULL)
  55     {
  56       lr->translate_strings = 1;
  57       lr->return_widestr = 0;
  58     }
  59 }
  60
  61
  62 void
  63 name_finish (struct localedef_t *locale, struct charmap_t *charmap)
  64 {
  65   struct locale_name_t *name = locale->categories[LC_NAME].name;
  66   int nothing = 0;
  67
  68   /* Now resolve copying and also handle completely missing definitions.  */
  69   if (name == NULL)
  70     {
  71       /* First see whether we were supposed to copy.  If yes, find the
  72          actual definition.  */
  73       if (locale->copy_name[LC_NAME] != NULL)
  74         {
  75           /* Find the copying locale.  This has to happen transitively since
  76              the locale we are copying from might also copying another one.  */
  77           struct localedef_t *from = locale;
  78
  79           do
  80             from = find_locale (LC_NAME, from->copy_name[LC_NAME],
  81                                 from->repertoire_name, charmap);
  82           while (from->categories[LC_NAME].name == NULL
  83                  && from->copy_name[LC_NAME] != NULL);
  84
  85           name = locale->categories[LC_NAME].name
  86             = from->categories[LC_NAME].name;
  87         }
  88
  89       /* If there is still no definition issue an warning and create an
  90          empty one.  */
  91       if (name == NULL)
  92         {
  93           if (! be_quiet)
  94             error (0, 0, _("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         error (0, 0, _("%s: field `%s' not defined"), "LC_NAME", "name_fmt");
 105       /* Use as the default value the value of the i18n locale.  */
 106       name->name_fmt = "%p%t%g%t%m%t%f";
 107     }
 108   else
 109     {
 110       /* We must check whether the format string contains only the
 111          allowed escape sequences.  */
 112       const char *cp = name->name_fmt;
 113
 114       if (*cp == '\0')
 115         error (0, 0, _("%s: field `%s' must not be empty"),
 116                "LC_NAME", "name_fmt");
 117       else
 118         while (*cp != '\0')
 119           {
 120             if (*cp == '%')
 121               {
 122                 if (*++cp == 'R')
 123                   /* Romanize-flag.  */
 124                   ++cp;
 125                 if (strchr ("dfFgGlomMpsSt", *cp) == NULL)
 126                   {
 127                     error (0, 0, _("\
 128 %s: invalid escape sequence in field `%s'"),
 129                            "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         error (0, 0, _("%s: field `%s' not defined"), "LC_NAME", #cat);       \
 142       name->cat = "";                                                         \
 143     }
 144
 145   TEST_ELEM (name_gen);
 146   TEST_ELEM (name_mr);
 147   TEST_ELEM (name_mrs);
 148   TEST_ELEM (name_miss);
 149   TEST_ELEM (name_ms);
 150 }
 151
 152
 153 void
 154 name_output (struct localedef_t *locale, struct charmap_t *charmap,
 155              const char *output_path)
 156 {
 157   struct locale_name_t *name = locale->categories[LC_NAME].name;
 158   struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_NAME)];
 159   struct locale_file data;
 160   uint32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_NAME)];
 161   size_t cnt = 0;
 162
 163   data.magic = LIMAGIC (LC_NAME);
 164   data.n = _NL_ITEM_INDEX (_NL_NUM_LC_NAME);
 165   iov[cnt].iov_base = (void *) &data;
 166   iov[cnt].iov_len = sizeof (data);
 167   ++cnt;
 168
 169   iov[cnt].iov_base = (void *) idx;
 170   iov[cnt].iov_len = sizeof (idx);
 171   ++cnt;
 172
 173   idx[cnt - 2] = iov[0].iov_len + iov[1].iov_len;
 174   iov[cnt].iov_base = (void *) name->name_fmt;
 175   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 176   ++cnt;
 177
 178   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 179   iov[cnt].iov_base = (void *) name->name_gen;
 180   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 181   ++cnt;
 182
 183   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 184   iov[cnt].iov_base = (void *) name->name_mr;
 185   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 186   ++cnt;
 187
 188   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 189   iov[cnt].iov_base = (void *) name->name_mrs;
 190   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 191   ++cnt;
 192
 193   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 194   iov[cnt].iov_base = (void *) name->name_miss;
 195   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 196   ++cnt;
 197
 198   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 199   iov[cnt].iov_base = (void *) name->name_ms;
 200   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 201   ++cnt;
 202
 203   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 204   iov[cnt].iov_base = (void *) charmap->code_set_name;
 205   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 206   ++cnt;
 207
 208   assert (cnt == 2 + _NL_ITEM_INDEX (_NL_NUM_LC_NAME));
 209
 210   write_locale_data (output_path, "LC_NAME",
 211                      2 + _NL_ITEM_INDEX (_NL_NUM_LC_NAME), iov);
 212 }
 213
 214
 215 /* The parser for the LC_NAME section of the locale definition.  */
 216 void
 217 name_read (struct linereader *ldfile, struct localedef_t *result,
 218            struct charmap_t *charmap, const char *repertoire_name,
 219            int ignore_content)
 220 {
 221   struct locale_name_t *name;
 222   struct token *now;
 223   struct token *arg;
 224   enum token_t nowtok;
 225
 226   /* The rest of the line containing `LC_NAME' must be empty.  */
 227   lr_ignore_rest (ldfile, 1);
 228
 229   do
 230     {
 231       now = lr_token (ldfile, charmap, NULL, verbose);
 232       nowtok = now->tok;
 233     }
 234   while (nowtok == tok_eol);
 235
 236   /* If we see `copy' now we are almost done.  */
 237   if (nowtok == tok_copy)
 238     {
 239       handle_copy (ldfile, charmap, repertoire_name, result, tok_lc_name,
 240                    LC_NAME, "LC_NAME", ignore_content);
 241       return;
 242     }
 243
 244   /* Prepare the data structures.  */
 245   name_startup (ldfile, result, ignore_content);
 246   name = result->categories[LC_NAME].name;
 247
 248   while (1)
 249     {
 250       /* Of course we don't proceed beyond the end of file.  */
 251       if (nowtok == tok_eof)
 252         break;
 253
 254       /* Ignore empty lines.  */
 255       if (nowtok == tok_eol)
 256         {
 257           now = lr_token (ldfile, charmap, NULL, verbose);
 258           nowtok = now->tok;
 259           continue;
 260         }
 261
 262       switch (nowtok)
 263         {
 264 #define STR_ELEM(cat) \
 265         case tok_##cat:                                                       \
 266           /* Ignore the rest of the line if we don't need the input of        \
 267              this line.  */                                                   \
 268           if (ignore_content)                                                 \
 269             {                                                                 \
 270               lr_ignore_rest (ldfile, 0);                                     \
 271               break;                                                          \
 272             }                                                                 \
 273                                                                               \
 274           arg = lr_token (ldfile, charmap, NULL, verbose);                    \
 275           if (arg->tok != tok_string)                                         \
 276             goto err_label;                                                   \
 277           if (name->cat != NULL)                                              \
 278             lr_error (ldfile, _("%s: field `%s' declared more than once"),    \
 279                       "LC_NAME", #cat);                                       \
 280           else if (!ignore_content && arg->val.str.startmb == NULL)           \
 281             {                                                                 \
 282               lr_error (ldfile, _("%s: unknown character in field `%s'"),     \
 283                         "LC_NAME", #cat);                                     \
 284               name->cat = "";                                                 \
 285             }                                                                 \
 286           else if (!ignore_content)                                           \
 287             name->cat = arg->val.str.startmb;                                 \
 288           break
 289
 290           STR_ELEM (name_fmt);
 291           STR_ELEM (name_gen);
 292           STR_ELEM (name_mr);
 293           STR_ELEM (name_mrs);
 294           STR_ELEM (name_miss);
 295           STR_ELEM (name_ms);
 296
 297         case tok_end:
 298           /* Next we assume `LC_NAME'.  */
 299           arg = lr_token (ldfile, charmap, NULL, verbose);
 300           if (arg->tok == tok_eof)
 301             break;
 302           if (arg->tok == tok_eol)
 303             lr_error (ldfile, _("%s: incomplete `END' line"), "LC_NAME");
 304           else if (arg->tok != tok_lc_name)
 305             lr_error (ldfile, _("\
 306 %1$s: definition does not end with `END %1$s'"), "LC_NAME");
 307           lr_ignore_rest (ldfile, arg->tok == tok_lc_name);
 308           return;
 309
 310         default:
 311         err_label:
 312           SYNTAX_ERROR (_("%s: syntax error"), "LC_NAME");
 313         }
 314
 315       /* Prepare for the next round.  */
 316       now = lr_token (ldfile, charmap, NULL, verbose);
 317       nowtok = now->tok;
 318     }
 319
 320   /* When we come here we reached the end of the file.  */
 321   lr_error (ldfile, _("%s: premature end of file"), "LC_NAME");
 322 }