locale/programs/ld-name.c

   1 /* Copyright (C) 1998-2018 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 as published
   7    by the Free Software Foundation; version 2 of the License, or
   8    (at your option) any later version.
   9
  10    This program 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
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, see <http://www.gnu.org/licenses/>.  */
  17
  18 #ifdef HAVE_CONFIG_H
  19 # include <config.h>
  20 #endif
  21
  22 #include <langinfo.h>
  23 #include <string.h>
  24 #include <stdint.h>
  25 #include <sys/uio.h>
  26
  27 #include <assert.h>
  28
  29 #include "localedef.h"
  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, const 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           record_warning (_("\
  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         record_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         record_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                     record_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         record_warning (_("%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, const struct charmap_t *charmap,
 155              const char *output_path)
 156 {
 157   struct locale_name_t *name = locale->categories[LC_NAME].name;
 158   struct locale_file file;
 159
 160   init_locale_data (&file, _NL_ITEM_INDEX (_NL_NUM_LC_NAME));
 161   add_locale_string (&file, name->name_fmt);
 162   add_locale_string (&file, name->name_gen);
 163   add_locale_string (&file, name->name_mr);
 164   add_locale_string (&file, name->name_mrs);
 165   add_locale_string (&file, name->name_miss);
 166   add_locale_string (&file, name->name_ms);
 167   add_locale_string (&file, charmap->code_set_name);
 168   write_locale_data (output_path, LC_NAME, "LC_NAME", &file);
 169 }
 170
 171
 172 /* The parser for the LC_NAME section of the locale definition.  */
 173 void
 174 name_read (struct linereader *ldfile, struct localedef_t *result,
 175            const struct charmap_t *charmap, const char *repertoire_name,
 176            int ignore_content)
 177 {
 178   struct locale_name_t *name;
 179   struct token *now;
 180   struct token *arg;
 181   enum token_t nowtok;
 182
 183   /* The rest of the line containing `LC_NAME' must be empty.  */
 184   lr_ignore_rest (ldfile, 1);
 185
 186   do
 187     {
 188       now = lr_token (ldfile, charmap, result, NULL, verbose);
 189       nowtok = now->tok;
 190     }
 191   while (nowtok == tok_eol);
 192
 193   /* If we see `copy' now we are almost done.  */
 194   if (nowtok == tok_copy)
 195     {
 196       handle_copy (ldfile, charmap, repertoire_name, result, tok_lc_name,
 197                    LC_NAME, "LC_NAME", ignore_content);
 198       return;
 199     }
 200
 201   /* Prepare the data structures.  */
 202   name_startup (ldfile, result, ignore_content);
 203   name = result->categories[LC_NAME].name;
 204
 205   while (1)
 206     {
 207       /* Of course we don't proceed beyond the end of file.  */
 208       if (nowtok == tok_eof)
 209         break;
 210
 211       /* Ignore empty lines.  */
 212       if (nowtok == tok_eol)
 213         {
 214           now = lr_token (ldfile, charmap, result, NULL, verbose);
 215           nowtok = now->tok;
 216           continue;
 217         }
 218
 219       switch (nowtok)
 220         {
 221 #define STR_ELEM(cat) \
 222         case tok_##cat:                                                       \
 223           /* Ignore the rest of the line if we don't need the input of        \
 224              this line.  */                                                   \
 225           if (ignore_content)                                                 \
 226             {                                                                 \
 227               lr_ignore_rest (ldfile, 0);                                     \
 228               break;                                                          \
 229             }                                                                 \
 230                                                                               \
 231           arg = lr_token (ldfile, charmap, result, NULL, verbose);            \
 232           if (arg->tok != tok_string)                                         \
 233             goto err_label;                                                   \
 234           if (name->cat != NULL)                                              \
 235             lr_error (ldfile, _("%s: field `%s' declared more than once"),    \
 236                       "LC_NAME", #cat);                                       \
 237           else if (!ignore_content && arg->val.str.startmb == NULL)           \
 238             {                                                                 \
 239               lr_error (ldfile, _("%s: unknown character in field `%s'"),     \
 240                         "LC_NAME", #cat);                                     \
 241               name->cat = "";                                                 \
 242             }                                                                 \
 243           else if (!ignore_content)                                           \
 244             name->cat = arg->val.str.startmb;                                 \
 245           break
 246
 247           STR_ELEM (name_fmt);
 248           STR_ELEM (name_gen);
 249           STR_ELEM (name_mr);
 250           STR_ELEM (name_mrs);
 251           STR_ELEM (name_miss);
 252           STR_ELEM (name_ms);
 253
 254         case tok_end:
 255           /* Next we assume `LC_NAME'.  */
 256           arg = lr_token (ldfile, charmap, result, NULL, verbose);
 257           if (arg->tok == tok_eof)
 258             break;
 259           if (arg->tok == tok_eol)
 260             lr_error (ldfile, _("%s: incomplete `END' line"), "LC_NAME");
 261           else if (arg->tok != tok_lc_name)
 262             lr_error (ldfile, _("\
 263 %1$s: definition does not end with `END %1$s'"), "LC_NAME");
 264           lr_ignore_rest (ldfile, arg->tok == tok_lc_name);
 265           return;
 266
 267         default:
 268         err_label:
 269           SYNTAX_ERROR (_("%s: syntax error"), "LC_NAME");
 270         }
 271
 272       /* Prepare for the next round.  */
 273       now = lr_token (ldfile, charmap, result, NULL, verbose);
 274       nowtok = now->tok;
 275     }
 276
 277   /* When we come here we reached the end of the file.  */
 278   lr_error (ldfile, _("%s: premature end of file"), "LC_NAME");
 279 }