locale/programs/ld-name.c

   1 /* Copyright (C) 1998-2017 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           if (! be_quiet)
  94             WITH_CUR_LOCALE (error (0, 0, _("\
  95 No definition for %s category found"), "LC_NAME"));
  96           name_startup (NULL, locale, 0);
  97           name = locale->categories[LC_NAME].name;
  98           nothing = 1;
  99         }
 100     }
 101
 102   if (name->name_fmt == NULL)
 103     {
 104       if (! nothing)
 105         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),
 106                                 "LC_NAME", "name_fmt"));
 107       /* Use as the default value the value of the i18n locale.  */
 108       name->name_fmt = "%p%t%g%t%m%t%f";
 109     }
 110   else
 111     {
 112       /* We must check whether the format string contains only the
 113          allowed escape sequences.  */
 114       const char *cp = name->name_fmt;
 115
 116       if (*cp == '\0')
 117         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' must not be empty"),
 118                                 "LC_NAME", "name_fmt"));
 119       else
 120         while (*cp != '\0')
 121           {
 122             if (*cp == '%')
 123               {
 124                 if (*++cp == 'R')
 125                   /* Romanize-flag.  */
 126                   ++cp;
 127                 if (strchr ("dfFgGlomMpsSt", *cp) == NULL)
 128                   {
 129                     WITH_CUR_LOCALE (error (0, 0, _("\
 130 %s: invalid escape sequence in field `%s'"), "LC_NAME", "name_fmt"));
 131                     break;
 132                   }
 133               }
 134             ++cp;
 135           }
 136     }
 137
 138 #define TEST_ELEM(cat) \
 139   if (name->cat == NULL)                                                      \
 140     {                                                                         \
 141       if (verbose && ! nothing)                                               \
 142         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),        \
 143                                 "LC_NAME", #cat));                            \
 144       name->cat = "";                                                         \
 145     }
 146
 147   TEST_ELEM (name_gen);
 148   TEST_ELEM (name_mr);
 149   TEST_ELEM (name_mrs);
 150   TEST_ELEM (name_miss);
 151   TEST_ELEM (name_ms);
 152 }
 153
 154
 155 void
 156 name_output (struct localedef_t *locale, const struct charmap_t *charmap,
 157              const char *output_path)
 158 {
 159   struct locale_name_t *name = locale->categories[LC_NAME].name;
 160   struct locale_file file;
 161
 162   init_locale_data (&file, _NL_ITEM_INDEX (_NL_NUM_LC_NAME));
 163   add_locale_string (&file, name->name_fmt);
 164   add_locale_string (&file, name->name_gen);
 165   add_locale_string (&file, name->name_mr);
 166   add_locale_string (&file, name->name_mrs);
 167   add_locale_string (&file, name->name_miss);
 168   add_locale_string (&file, name->name_ms);
 169   add_locale_string (&file, charmap->code_set_name);
 170   write_locale_data (output_path, LC_NAME, "LC_NAME", &file);
 171 }
 172
 173
 174 /* The parser for the LC_NAME section of the locale definition.  */
 175 void
 176 name_read (struct linereader *ldfile, struct localedef_t *result,
 177            const struct charmap_t *charmap, const char *repertoire_name,
 178            int ignore_content)
 179 {
 180   struct locale_name_t *name;
 181   struct token *now;
 182   struct token *arg;
 183   enum token_t nowtok;
 184
 185   /* The rest of the line containing `LC_NAME' must be empty.  */
 186   lr_ignore_rest (ldfile, 1);
 187
 188   do
 189     {
 190       now = lr_token (ldfile, charmap, result, NULL, verbose);
 191       nowtok = now->tok;
 192     }
 193   while (nowtok == tok_eol);
 194
 195   /* If we see `copy' now we are almost done.  */
 196   if (nowtok == tok_copy)
 197     {
 198       handle_copy (ldfile, charmap, repertoire_name, result, tok_lc_name,
 199                    LC_NAME, "LC_NAME", ignore_content);
 200       return;
 201     }
 202
 203   /* Prepare the data structures.  */
 204   name_startup (ldfile, result, ignore_content);
 205   name = result->categories[LC_NAME].name;
 206
 207   while (1)
 208     {
 209       /* Of course we don't proceed beyond the end of file.  */
 210       if (nowtok == tok_eof)
 211         break;
 212
 213       /* Ignore empty lines.  */
 214       if (nowtok == tok_eol)
 215         {
 216           now = lr_token (ldfile, charmap, result, NULL, verbose);
 217           nowtok = now->tok;
 218           continue;
 219         }
 220
 221       switch (nowtok)
 222         {
 223 #define STR_ELEM(cat) \
 224         case tok_##cat:                                                       \
 225           /* Ignore the rest of the line if we don't need the input of        \
 226              this line.  */                                                   \
 227           if (ignore_content)                                                 \
 228             {                                                                 \
 229               lr_ignore_rest (ldfile, 0);                                     \
 230               break;                                                          \
 231             }                                                                 \
 232                                                                               \
 233           arg = lr_token (ldfile, charmap, result, NULL, verbose);            \
 234           if (arg->tok != tok_string)                                         \
 235             goto err_label;                                                   \
 236           if (name->cat != NULL)                                              \
 237             lr_error (ldfile, _("%s: field `%s' declared more than once"),    \
 238                       "LC_NAME", #cat);                                       \
 239           else if (!ignore_content && arg->val.str.startmb == NULL)           \
 240             {                                                                 \
 241               lr_error (ldfile, _("%s: unknown character in field `%s'"),     \
 242                         "LC_NAME", #cat);                                     \
 243               name->cat = "";                                                 \
 244             }                                                                 \
 245           else if (!ignore_content)                                           \
 246             name->cat = arg->val.str.startmb;                                 \
 247           break
 248
 249           STR_ELEM (name_fmt);
 250           STR_ELEM (name_gen);
 251           STR_ELEM (name_mr);
 252           STR_ELEM (name_mrs);
 253           STR_ELEM (name_miss);
 254           STR_ELEM (name_ms);
 255
 256         case tok_end:
 257           /* Next we assume `LC_NAME'.  */
 258           arg = lr_token (ldfile, charmap, result, NULL, verbose);
 259           if (arg->tok == tok_eof)
 260             break;
 261           if (arg->tok == tok_eol)
 262             lr_error (ldfile, _("%s: incomplete `END' line"), "LC_NAME");
 263           else if (arg->tok != tok_lc_name)
 264             lr_error (ldfile, _("\
 265 %1$s: definition does not end with `END %1$s'"), "LC_NAME");
 266           lr_ignore_rest (ldfile, arg->tok == tok_lc_name);
 267           return;
 268
 269         default:
 270         err_label:
 271           SYNTAX_ERROR (_("%s: syntax error"), "LC_NAME");
 272         }
 273
 274       /* Prepare for the next round.  */
 275       now = lr_token (ldfile, charmap, result, NULL, verbose);
 276       nowtok = now->tok;
 277     }
 278
 279   /* When we come here we reached the end of the file.  */
 280   lr_error (ldfile, _("%s: premature end of file"), "LC_NAME");
 281 }