locale/programs/ld-measurement.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_MEASUREMENT locale.  */
  35 struct locale_measurement_t
  36 {
  37   unsigned char measurement;
  38 };
  39
  40
  41 static void
  42 measurement_startup (struct linereader *lr, struct localedef_t *locale,
  43                      int ignore_content)
  44 {
  45   if (!ignore_content)
  46     locale->categories[LC_MEASUREMENT].measurement =
  47       (struct locale_measurement_t *)
  48       xcalloc (1, sizeof (struct locale_measurement_t));
  49
  50   if (lr != NULL)
  51     {
  52       lr->translate_strings = 1;
  53       lr->return_widestr = 0;
  54     }
  55 }
  56
  57
  58 void
  59 measurement_finish (struct localedef_t *locale,
  60                     const struct charmap_t *charmap)
  61 {
  62   struct locale_measurement_t *measurement =
  63     locale->categories[LC_MEASUREMENT].measurement;
  64   int nothing = 0;
  65
  66   /* Now resolve copying and also handle completely missing definitions.  */
  67   if (measurement == NULL)
  68     {
  69       /* First see whether we were supposed to copy.  If yes, find the
  70          actual definition.  */
  71       if (locale->copy_name[LC_MEASUREMENT] != NULL)
  72         {
  73           /* Find the copying locale.  This has to happen transitively since
  74              the locale we are copying from might also copying another one.  */
  75           struct localedef_t *from = locale;
  76
  77           do
  78             from = find_locale (LC_MEASUREMENT,
  79                                 from->copy_name[LC_MEASUREMENT],
  80                                 from->repertoire_name, charmap);
  81           while (from->categories[LC_MEASUREMENT].measurement == NULL
  82                  && from->copy_name[LC_MEASUREMENT] != NULL);
  83
  84           measurement = locale->categories[LC_MEASUREMENT].measurement
  85             = from->categories[LC_MEASUREMENT].measurement;
  86         }
  87
  88       /* If there is still no definition issue an warning and create an
  89          empty one.  */
  90       if (measurement == NULL)
  91         {
  92           record_warning (_("\
  93 No definition for %s category found"), "LC_MEASUREMENT");
  94           measurement_startup (NULL, locale, 0);
  95           measurement = locale->categories[LC_MEASUREMENT].measurement;
  96           nothing = 1;
  97         }
  98     }
  99
 100   if (measurement->measurement == 0)
 101     {
 102       if (! nothing)
 103         record_error (0, 0, _("%s: field `%s' not defined"),
 104                       "LC_MEASUREMENT", "measurement");
 105       /* Use as the default value the value of the i18n locale.  */
 106       measurement->measurement = 1;
 107     }
 108   else
 109     {
 110       if (measurement->measurement > 3)
 111         record_error (0, 0, _("%s: invalid value for field `%s'"),
 112                       "LC_MEASUREMENT", "measurement");
 113     }
 114 }
 115
 116
 117 void
 118 measurement_output (struct localedef_t *locale,
 119                     const struct charmap_t *charmap, const char *output_path)
 120 {
 121   struct locale_measurement_t *measurement =
 122     locale->categories[LC_MEASUREMENT].measurement;
 123   struct locale_file file;
 124
 125   init_locale_data (&file, _NL_ITEM_INDEX (_NL_NUM_LC_MEASUREMENT));
 126   add_locale_char (&file, measurement->measurement);
 127   add_locale_string (&file, charmap->code_set_name);
 128   write_locale_data (output_path, LC_MEASUREMENT, "LC_MEASUREMENT", &file);
 129 }
 130
 131
 132 /* The parser for the LC_MEASUREMENT section of the locale definition.  */
 133 void
 134 measurement_read (struct linereader *ldfile, struct localedef_t *result,
 135                   const struct charmap_t *charmap, const char *repertoire_name,
 136                   int ignore_content)
 137 {
 138   struct locale_measurement_t *measurement;
 139   struct token *now;
 140   struct token *arg;
 141   enum token_t nowtok;
 142
 143   /* The rest of the line containing `LC_MEASUREMENT' must be free.  */
 144   lr_ignore_rest (ldfile, 1);
 145
 146   do
 147     {
 148       now = lr_token (ldfile, charmap, result, NULL, verbose);
 149       nowtok = now->tok;
 150     }
 151   while (nowtok == tok_eol);
 152
 153   /* If we see `copy' now we are almost done.  */
 154   if (nowtok == tok_copy)
 155     {
 156       handle_copy (ldfile, charmap, repertoire_name, result,
 157                    tok_lc_measurement, LC_MEASUREMENT, "LC_MEASUREMENT",
 158                    ignore_content);
 159       return;
 160     }
 161
 162   /* Prepare the data structures.  */
 163   measurement_startup (ldfile, result, ignore_content);
 164   measurement = result->categories[LC_MEASUREMENT].measurement;
 165
 166   while (1)
 167     {
 168       /* Of course we don't proceed beyond the end of file.  */
 169       if (nowtok == tok_eof)
 170         break;
 171
 172       /* Ingore empty lines.  */
 173       if (nowtok == tok_eol)
 174         {
 175           now = lr_token (ldfile, charmap, result, NULL, verbose);
 176           nowtok = now->tok;
 177           continue;
 178         }
 179
 180       switch (nowtok)
 181         {
 182 #define INT_ELEM(cat) \
 183         case tok_##cat:                                                       \
 184           /* Ignore the rest of the line if we don't need the input of        \
 185              this line.  */                                                   \
 186           if (ignore_content)                                                 \
 187             {                                                                 \
 188               lr_ignore_rest (ldfile, 0);                                     \
 189               break;                                                          \
 190             }                                                                 \
 191                                                                               \
 192           arg = lr_token (ldfile, charmap, result, NULL, verbose);            \
 193           if (arg->tok != tok_number)                                         \
 194             goto err_label;                                                   \
 195           else if (measurement->cat != 0)                                     \
 196             lr_error (ldfile, _("%s: field `%s' declared more than once"),    \
 197                       "LC_MEASUREMENT", #cat);                                \
 198           else if (!ignore_content)                                           \
 199             measurement->cat = arg->val.num;                                  \
 200           break
 201
 202           INT_ELEM (measurement);
 203
 204         case tok_end:
 205           /* Next we assume `LC_MEASUREMENT'.  */
 206           arg = lr_token (ldfile, charmap, result, NULL, verbose);
 207           if (arg->tok == tok_eof)
 208             break;
 209           if (arg->tok == tok_eol)
 210             lr_error (ldfile, _("%s: incomplete `END' line"),
 211                       "LC_MEASUREMENT");
 212           else if (arg->tok != tok_lc_measurement)
 213             lr_error (ldfile, _("\
 214 %1$s: definition does not end with `END %1$s'"), "LC_MEASUREMENT");
 215           lr_ignore_rest (ldfile, arg->tok == tok_lc_measurement);
 216           return;
 217
 218         default:
 219         err_label:
 220           SYNTAX_ERROR (_("%s: syntax error"), "LC_MEASUREMENT");
 221         }
 222
 223       /* Prepare for the next round.  */
 224       now = lr_token (ldfile, charmap, result, NULL, verbose);
 225       nowtok = now->tok;
 226     }
 227
 228   /* When we come here we reached the end of the file.  */
 229   lr_error (ldfile, _("%s: premature end of file"),
 230             "LC_MEASUREMENT");
 231 }