locale/programs/ld-telephone.c

   1 /* Copyright (C) 1998-2014 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 <error.h>
  23 #include <langinfo.h>
  24 #include <string.h>
  25 #include <stdint.h>
  26 #include <sys/uio.h>
  27
  28 #include <assert.h>
  29
  30 #include "localedef.h"
  31 #include "localeinfo.h"
  32 #include "locfile.h"
  33
  34
  35 /* The real definition of the struct for the LC_TELEPHONE locale.  */
  36 struct locale_telephone_t
  37 {
  38   const char *tel_int_fmt;
  39   const char *tel_dom_fmt;
  40   const char *int_select;
  41   const char *int_prefix;
  42 };
  43
  44
  45 static void
  46 telephone_startup (struct linereader *lr, struct localedef_t *locale,
  47                    int ignore_content)
  48 {
  49   if (!ignore_content)
  50     locale->categories[LC_TELEPHONE].telephone = (struct locale_telephone_t *)
  51       xcalloc (1, sizeof (struct locale_telephone_t));
  52
  53   if (lr != NULL)
  54     {
  55       lr->translate_strings = 1;
  56       lr->return_widestr = 0;
  57     }
  58 }
  59
  60
  61 void
  62 telephone_finish (struct localedef_t *locale, const struct charmap_t *charmap)
  63 {
  64   struct locale_telephone_t *telephone =
  65     locale->categories[LC_TELEPHONE].telephone;
  66   int nothing = 0;
  67
  68   /* Now resolve copying and also handle completely missing definitions.  */
  69   if (telephone == NULL)
  70     {
  71       /* First see whether we were supposed to copy.  If yes, find the
  72          actual definition.  */
  73       if (locale->copy_name[LC_TELEPHONE] != 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_TELEPHONE, from->copy_name[LC_TELEPHONE],
  81                                 from->repertoire_name, charmap);
  82           while (from->categories[LC_TELEPHONE].telephone == NULL
  83                  && from->copy_name[LC_TELEPHONE] != NULL);
  84
  85           telephone = locale->categories[LC_TELEPHONE].telephone
  86             = from->categories[LC_TELEPHONE].telephone;
  87         }
  88
  89       /* If there is still no definition issue an warning and create an
  90          empty one.  */
  91       if (telephone == NULL)
  92         {
  93           if (! be_quiet)
  94             WITH_CUR_LOCALE (error (0, 0, _("\
  95 No definition for %s category found"), "LC_TELEPHONE"));
  96           telephone_startup (NULL, locale, 0);
  97           telephone = locale->categories[LC_TELEPHONE].telephone;
  98           nothing = 1;
  99         }
 100     }
 101
 102   if (telephone->tel_int_fmt == NULL)
 103     {
 104       if (! nothing)
 105         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),
 106                                 "LC_TELEPHONE", "tel_int_fmt"));
 107       /* Use as the default value the value of the i18n locale.  */
 108       telephone->tel_int_fmt = "+%c %a %l";
 109     }
 110   else
 111     {
 112       /* We must check whether the format string contains only the
 113          allowed escape sequences.  */
 114       const char *cp = telephone->tel_int_fmt;
 115
 116       if (*cp == '\0')
 117         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' must not be empty"),
 118                                 "LC_TELEPHONE", "tel_int_fmt"));
 119       else
 120         while (*cp != '\0')
 121           {
 122             if (*cp == '%')
 123               {
 124                 if (strchr ("aAlc", *++cp) == NULL)
 125                   {
 126                     WITH_CUR_LOCALE (error (0, 0, _("\
 127 %s: invalid escape sequence in field `%s'"), "LC_TELEPHONE", "tel_int_fmt"));
 128                     break;
 129                   }
 130               }
 131             ++cp;
 132           }
 133     }
 134
 135   if (telephone->tel_dom_fmt == NULL)
 136     telephone->tel_dom_fmt = "";
 137   else if (telephone->tel_dom_fmt[0] != '\0')
 138     {
 139       /* We must check whether the format string contains only the
 140          allowed escape sequences.  */
 141       const char *cp = telephone->tel_dom_fmt;
 142
 143       while (*cp != '\0')
 144         {
 145           if (*cp == '%')
 146             {
 147               if (strchr ("aAlc", *++cp) == NULL)
 148                 {
 149                   WITH_CUR_LOCALE (error (0, 0, _("\
 150 %s: invalid escape sequence in field `%s'"), "LC_TELEPHONE", "tel_dom_fmt"));
 151                   break;
 152                 }
 153             }
 154           ++cp;
 155         }
 156     }
 157
 158 #define TEST_ELEM(cat) \
 159   if (telephone->cat == NULL)                                                 \
 160     {                                                                         \
 161       if (verbose && ! nothing)                                               \
 162         WITH_CUR_LOCALE (error (0, 0, _("%s: field `%s' not defined"),        \
 163                                 "LC_TELEPHONE", #cat));                       \
 164       telephone->cat = "";                                                    \
 165     }
 166
 167   TEST_ELEM (int_select);
 168   TEST_ELEM (int_prefix);
 169 }
 170
 171
 172 void
 173 telephone_output (struct localedef_t *locale, const struct charmap_t *charmap,
 174                   const char *output_path)
 175 {
 176   struct locale_telephone_t *telephone =
 177     locale->categories[LC_TELEPHONE].telephone;
 178   struct locale_file file;
 179
 180   init_locale_data (&file, _NL_ITEM_INDEX (_NL_NUM_LC_TELEPHONE));
 181   add_locale_string (&file, telephone->tel_int_fmt);
 182   add_locale_string (&file, telephone->tel_dom_fmt);
 183   add_locale_string (&file, telephone->int_select);
 184   add_locale_string (&file, telephone->int_prefix);
 185   add_locale_string (&file, charmap->code_set_name);
 186   write_locale_data (output_path, LC_TELEPHONE, "LC_TELEPHONE", &file);
 187 }
 188
 189
 190 /* The parser for the LC_TELEPHONE section of the locale definition.  */
 191 void
 192 telephone_read (struct linereader *ldfile, struct localedef_t *result,
 193                 const struct charmap_t *charmap, const char *repertoire_name,
 194                 int ignore_content)
 195 {
 196   struct locale_telephone_t *telephone;
 197   struct token *now;
 198   struct token *arg;
 199   enum token_t nowtok;
 200
 201   /* The rest of the line containing `LC_TELEPHONE' must be free.  */
 202   lr_ignore_rest (ldfile, 1);
 203
 204   do
 205     {
 206       now = lr_token (ldfile, charmap, result, NULL, verbose);
 207       nowtok = now->tok;
 208     }
 209   while (nowtok == tok_eol);
 210
 211   /* If we see `copy' now we are almost done.  */
 212   if (nowtok == tok_copy)
 213     {
 214       handle_copy (ldfile, charmap, repertoire_name, result, tok_lc_telephone,
 215                    LC_TELEPHONE, "LC_TELEPHONE", ignore_content);
 216       return;
 217     }
 218
 219   /* Prepare the data structures.  */
 220   telephone_startup (ldfile, result, ignore_content);
 221   telephone = result->categories[LC_TELEPHONE].telephone;
 222
 223   while (1)
 224     {
 225       /* Of course we don't proceed beyond the end of file.  */
 226       if (nowtok == tok_eof)
 227         break;
 228
 229       /* Ingore empty lines.  */
 230       if (nowtok == tok_eol)
 231         {
 232           now = lr_token (ldfile, charmap, result, NULL, verbose);
 233           nowtok = now->tok;
 234           continue;
 235         }
 236
 237       switch (nowtok)
 238         {
 239 #define STR_ELEM(cat) \
 240         case tok_##cat:                                                       \
 241           /* Ignore the rest of the line if we don't need the input of        \
 242              this line.  */                                                   \
 243           if (ignore_content)                                                 \
 244             {                                                                 \
 245               lr_ignore_rest (ldfile, 0);                                     \
 246               break;                                                          \
 247             }                                                                 \
 248                                                                               \
 249           arg = lr_token (ldfile, charmap, result, NULL, verbose);            \
 250           if (arg->tok != tok_string)                                         \
 251             goto err_label;                                                   \
 252           if (telephone->cat != NULL)                                         \
 253             lr_error (ldfile, _("%s: field `%s' declared more than once"),    \
 254                       "LC_TELEPHONE", #cat);                                  \
 255           else if (!ignore_content && arg->val.str.startmb == NULL)           \
 256             {                                                                 \
 257               lr_error (ldfile, _("%s: unknown character in field `%s'"),     \
 258                         "LC_TELEPHONE", #cat);                                \
 259               telephone->cat = "";                                            \
 260             }                                                                 \
 261           else if (!ignore_content)                                           \
 262             telephone->cat = arg->val.str.startmb;                            \
 263           break
 264
 265           STR_ELEM (tel_int_fmt);
 266           STR_ELEM (tel_dom_fmt);
 267           STR_ELEM (int_select);
 268           STR_ELEM (int_prefix);
 269
 270         case tok_end:
 271           /* Next we assume `LC_TELEPHONE'.  */
 272           arg = lr_token (ldfile, charmap, result, NULL, verbose);
 273           if (arg->tok == tok_eof)
 274             break;
 275           if (arg->tok == tok_eol)
 276             lr_error (ldfile, _("%s: incomplete `END' line"), "LC_TELEPHONE");
 277           else if (arg->tok != tok_lc_telephone)
 278             lr_error (ldfile, _("\
 279 %1$s: definition does not end with `END %1$s'"), "LC_TELEPHONE");
 280           lr_ignore_rest (ldfile, arg->tok == tok_lc_telephone);
 281           return;
 282
 283         default:
 284         err_label:
 285           SYNTAX_ERROR (_("%s: syntax error"), "LC_TELEPHONE");
 286         }
 287
 288       /* Prepare for the next round.  */
 289       now = lr_token (ldfile, charmap, result, NULL, verbose);
 290       nowtok = now->tok;
 291     }
 292
 293   /* When we come here we reached the end of the file.  */
 294   lr_error (ldfile, _("%s: premature end of file"), "LC_TELEPHONE");
 295 }