locale/programs/ld-monetary.c

   1 /* Copyright (C) 1995, 1996 Free Software Foundation, Inc.
   2 This file is part of the GNU C Library.
   3 Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
   4
   5 The GNU C Library is free software; you can redistribute it and/or
   6 modify it under the terms of the GNU Library General Public License as
   7 published by the Free Software Foundation; either version 2 of the
   8 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 Library General Public License for more details.
  14
  15 You should have received a copy of the GNU Library General Public
  16 License along with the GNU C Library; see the file COPYING.LIB.  If
  17 not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18 Boston, MA 02111-1307, USA.  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 # include <config.h>
  22 #endif
  23
  24 #include <langinfo.h>
  25 #include <limits.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28
  29
  30 /* Undefine following line in production version.  */
  31 /* #define NDEBUG 1 */
  32 #include <assert.h>
  33
  34 #include "locales.h"
  35 #include "localeinfo.h"
  36 #include "stringtrans.h"
  37
  38 void *xmalloc (size_t __n);
  39 void *xrealloc (void *__ptr, size_t __n);
  40
  41
  42 /* The real definition of the struct for the LC_NUMERIC locale.  */
  43 struct locale_monetary_t
  44 {
  45   const char *int_curr_symbol;
  46   const char *currency_symbol;
  47   const char *mon_decimal_point;
  48   const char *mon_thousands_sep;
  49   char *mon_grouping;
  50   size_t mon_grouping_max;
  51   size_t mon_grouping_act;
  52   const char *positive_sign;
  53   const char *negative_sign;
  54   signed char int_frac_digits;
  55   signed char frac_digits;
  56   signed char p_cs_precedes;
  57   signed char p_sep_by_space;
  58   signed char n_cs_precedes;
  59   signed char n_sep_by_space;
  60   signed char p_sign_posn;
  61   signed char n_sign_posn;
  62 };
  63
  64
  65 /* The content iof the field int_curr_symbol has to be taken from
  66    ISO-4217.  We test for correct values.  */
  67 #define DEFINE_INT_CURR(str) str,
  68 static const char *const valid_int_curr[] =
  69   {
  70 #   include "../iso-4217.def"
  71   };
  72 #define NR_VALID_INT_CURR ((sizeof (valid_int_curr) \
  73                             / sizeof (valid_int_curr[0])))
  74 #undef DEFINE_INT_CURR
  75
  76
  77 /* Prototypes for local functions.  */
  78 static int curr_strcmp(const char *s1, const char **s2);
  79
  80
  81 void
  82 monetary_startup (struct linereader *lr, struct localedef_t *locale,
  83                   struct charset_t *charset)
  84 {
  85   struct locale_monetary_t *monetary;
  86
  87   /* It is important that we always use UCS1 encoding for strings now.  */
  88   encoding_method = ENC_UCS1;
  89
  90   locale->categories[LC_MONETARY].monetary = monetary =
  91     (struct locale_monetary_t *) xmalloc (sizeof (struct locale_monetary_t));
  92
  93   memset (monetary, '\0', sizeof (struct locale_monetary_t));
  94
  95   monetary->mon_grouping_max = 80;
  96   monetary->mon_grouping =
  97     (char *) xmalloc (monetary->mon_grouping_max);
  98   monetary->mon_grouping_act = 0;
  99
 100   monetary->int_frac_digits = -2;
 101   monetary->frac_digits = -2;
 102   monetary->p_cs_precedes = -2;
 103   monetary->p_sep_by_space = -2;
 104   monetary->n_cs_precedes = -2;
 105   monetary->n_sep_by_space = -2;
 106   monetary->p_sign_posn = -2;
 107   monetary->n_sign_posn = -2;
 108 }
 109
 110
 111 void
 112 monetary_finish (struct localedef_t *locale)
 113 {
 114   struct locale_monetary_t *monetary
 115     = locale->categories[LC_MONETARY].monetary;
 116
 117 #define TEST_ELEM(cat)                                                        \
 118   if (monetary->cat == NULL)                                                  \
 119     error (0, 0, _("field `%s' in category `%s' not defined"),                \
 120            #cat, "LC_MONETARY")
 121
 122   TEST_ELEM (int_curr_symbol);
 123   TEST_ELEM (currency_symbol);
 124   TEST_ELEM (mon_decimal_point);
 125   TEST_ELEM (mon_thousands_sep);
 126   TEST_ELEM (positive_sign);
 127   TEST_ELEM (negative_sign);
 128
 129   /* The international currency symbol must come from ISO 4217.  */
 130   if (monetary->int_curr_symbol != NULL)
 131     {
 132       if (strlen (monetary->int_curr_symbol) != 4)
 133         error (0, 0, _("\
 134 value of field `int_curr_symbol' in category `LC_MONETARY' has wrong length"));
 135       else if (bsearch (monetary->int_curr_symbol, valid_int_curr,
 136                         NR_VALID_INT_CURR, sizeof (const char *),
 137                         (comparison_fn_t) curr_strcmp) == NULL)
 138         error (0, 0, _("\
 139 value of field `int_curr_symbol' in category `LC_MONETARY' does \
 140 not correspond to a valid name in ISO 4217"));
 141     }
 142
 143   /* The decimal point must not be empty.  This is not said explicitly
 144      in POSIX but ANSI C (ISO/IEC 9899) says in 4.4.2.1 it has to be
 145      != "".  */
 146   if (monetary->mon_decimal_point[0] == '\0')
 147     {
 148       error (0, 0, _("\
 149 value for field `%s' in category `%s' must not be the empty string"),
 150              "mon_decimal_point", "LC_MONETARY");
 151     }
 152
 153   if (monetary->mon_grouping_act == 0)
 154     error (0, 0, _("field `%s' in category `%s' not defined"),
 155            "mon_grouping", "LC_MONETARY");
 156
 157 #undef TEST_ELEM
 158 #define TEST_ELEM(cat, min, max)                                              \
 159   if (monetary->cat == -2)                                                    \
 160     error (0, 0, _("field `%s' in category `%s' not defined"),                \
 161            #cat, "LC_MONETARY");                                              \
 162   else if (monetary->cat < min || monetary->cat > max)                        \
 163     error (0, 0, _("\
 164 value for field `%s' in category `%s' must be in range %d...%d"),             \
 165            #cat, "LC_MONETARY", min, max)
 166
 167 #if 0
 168                                                                                 /* The following two test are not really necessary because all values
 169     the variable could have are valid.  */
 170   TEST_ELEM (int_frac_digits, -128, 127);       /* No range check.  */
 171   TEST_ELEM (frac_digits, -128, 127);           /* No range check.  */
 172 #endif
 173   TEST_ELEM (p_cs_precedes, -1, 1);
 174   TEST_ELEM (p_sep_by_space, -1, 2);
 175   TEST_ELEM (n_cs_precedes, -1, 1);
 176   TEST_ELEM (n_sep_by_space, -1, 2);
 177   TEST_ELEM (p_sign_posn, -1, 4);
 178   TEST_ELEM (n_sign_posn, -1, 4);
 179 }
 180
 181
 182 void
 183 monetary_output (struct localedef_t *locale, const char *output_path)
 184 {
 185   struct locale_monetary_t *monetary
 186     = locale->categories[LC_MONETARY].monetary;
 187   struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY)];
 188   struct locale_file data;
 189   u_int32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_MONETARY)];
 190   size_t cnt = 0;
 191
 192   if ((locale->binary & (1 << LC_MONETARY)) != 0)
 193     {
 194       iov[0].iov_base = monetary;
 195       iov[0].iov_len = locale->len[LC_MONETARY];
 196
 197       write_locale_data (output_path, "LC_MONETARY", 1, iov);
 198
 199       return;
 200     }
 201
 202   data.magic = LIMAGIC (LC_MONETARY);
 203   data.n = _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY);
 204   iov[cnt].iov_base = (void *) &data;
 205   iov[cnt].iov_len = sizeof (data);
 206   ++cnt;
 207
 208   iov[cnt].iov_base = (void *) idx;
 209   iov[cnt].iov_len = sizeof (idx);
 210   ++cnt;
 211
 212   idx[cnt - 2] = iov[0].iov_len + iov[1].iov_len;
 213   iov[cnt].iov_base = (void *) (monetary->int_curr_symbol ?: "");
 214   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 215   ++cnt;
 216
 217   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 218   iov[cnt].iov_base = (void *) (monetary->currency_symbol ?: "");
 219   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 220   ++cnt;
 221
 222   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 223   iov[cnt].iov_base = (void *) (monetary->mon_decimal_point ?: "");
 224   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 225   ++cnt;
 226
 227   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 228   iov[cnt].iov_base = (void *) (monetary->mon_thousands_sep ?: "");
 229   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 230   ++cnt;
 231
 232   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 233   iov[cnt].iov_base = alloca (monetary->mon_grouping_act + 1);
 234   iov[cnt].iov_len = monetary->mon_grouping_act + 1;
 235   memcpy (iov[cnt].iov_base, monetary->mon_grouping,
 236           monetary->mon_grouping_act);
 237   ((char *) iov[cnt].iov_base)[monetary->mon_grouping_act] = '\0';
 238   ++cnt;
 239
 240   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 241   iov[cnt].iov_base = (void *) (monetary->positive_sign ?: "");
 242   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 243   ++cnt;
 244
 245   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 246   iov[cnt].iov_base = (void *) (monetary->negative_sign ?: "");
 247   iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
 248   ++cnt;
 249
 250   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 251   iov[cnt].iov_base = (void *) &monetary->int_frac_digits;
 252   iov[cnt].iov_len = 1;
 253   ++cnt;
 254
 255   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 256   iov[cnt].iov_base = (void *) &monetary->frac_digits;
 257   iov[cnt].iov_len = 1;
 258   ++cnt;
 259
 260   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 261   iov[cnt].iov_base = (void *) &monetary->p_cs_precedes;
 262   iov[cnt].iov_len = 1;
 263   ++cnt;
 264
 265   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 266   iov[cnt].iov_base = (void *) &monetary->p_sep_by_space;
 267   iov[cnt].iov_len = 1;
 268   ++cnt;
 269
 270   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 271   iov[cnt].iov_base = (void *) &monetary->n_cs_precedes;
 272   iov[cnt].iov_len = 1;
 273   ++cnt;
 274
 275   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 276   iov[cnt].iov_base = (void *) &monetary->n_sep_by_space;
 277   iov[cnt].iov_len = 1;
 278   ++cnt;
 279
 280   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 281   iov[cnt].iov_base = (void *) &monetary->p_sign_posn;
 282   iov[cnt].iov_len = 1;
 283   ++cnt;
 284
 285   idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
 286   iov[cnt].iov_base = (void *) &monetary->n_sign_posn;
 287   iov[cnt].iov_len = 1;
 288
 289   assert (cnt + 1 == 2 + _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY));
 290
 291   write_locale_data (output_path, "LC_MONETARY",
 292                      2 + _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY), iov);
 293 }
 294
 295
 296 void
 297 monetary_add (struct linereader *lr, struct localedef_t *locale,
 298               enum token_t tok, struct token *code,
 299               struct charset_t *charset)
 300 {
 301   struct locale_monetary_t *monetary
 302     = locale->categories[LC_MONETARY].monetary;
 303
 304   switch (tok)
 305     {
 306 #define STR_ELEM(cat)                                                         \
 307     case tok_##cat:                                                           \
 308       if (monetary->cat != NULL)                                              \
 309         lr_error (lr, _("\
 310 field `%s' in category `%s' declared more than once"),                        \
 311                   #cat, "LC_MONETARY");                                       \
 312       else if (code->val.str.start == NULL)                                   \
 313         {                                                                     \
 314           lr_error (lr, _("unknown character in field `%s' of category `%s'"),\
 315                     #cat, "LC_MONETARY");                                     \
 316           monetary->cat = "";                                                 \
 317         }                                                                     \
 318       else                                                                    \
 319         monetary->cat = code->val.str.start;                                  \
 320       break
 321
 322     STR_ELEM (int_curr_symbol);
 323     STR_ELEM (currency_symbol);
 324     STR_ELEM (mon_decimal_point);
 325     STR_ELEM (mon_thousands_sep);
 326     STR_ELEM (positive_sign);
 327     STR_ELEM (negative_sign);
 328
 329 #define INT_ELEM(cat)                                                         \
 330     case tok_##cat:                                                           \
 331       if (monetary->cat != -2)                                                \
 332         lr_error (lr, _("\
 333 field `%s' in category `%s' declared more than once"),                        \
 334                   #cat, "LC_MONETARY");                                       \
 335       else                                                                    \
 336         monetary->cat = code->val.num;                                        \
 337       break
 338
 339     INT_ELEM (int_frac_digits);
 340     INT_ELEM (frac_digits);
 341     INT_ELEM (p_cs_precedes);
 342     INT_ELEM (p_sep_by_space);
 343     INT_ELEM (n_cs_precedes);
 344     INT_ELEM (n_sep_by_space);
 345     INT_ELEM (p_sign_posn);
 346     INT_ELEM (n_sign_posn);
 347
 348     case tok_mon_grouping:
 349       if (monetary->mon_grouping_act == monetary->mon_grouping_max)
 350         {
 351           monetary->mon_grouping_max *= 2;
 352           monetary->mon_grouping =
 353             (char *) xrealloc (monetary->mon_grouping,
 354                                monetary->mon_grouping_max);
 355         }
 356       if (monetary->mon_grouping[monetary->mon_grouping_act - 1]
 357           == '\177')
 358         lr_error (lr, _("\
 359 `-1' must be last entry in `%s' field in `%s' category"),
 360                   "mon_grouping", "LC_MONETARY");
 361       else
 362         {
 363           if (code->tok == tok_minus1)
 364             monetary->mon_grouping[monetary->mon_grouping_act++] = '\177';
 365           else if (code->val.num == 0)
 366             lr_error (lr, _("\
 367 values for field `%s' in category `%s' must not be zero"),
 368                       "mon_grouping", "LC_MONETARY");
 369           else if (code->val.num > 126)
 370             lr_error (lr, _("\
 371 values for field `%s' in category `%s' must be smaller than 127"),
 372                       "mon_grouping", "LC_MONETARY");
 373           else
 374             monetary->mon_grouping[monetary->mon_grouping_act++]
 375               = code->val.num;
 376         }
 377       break;
 378
 379     default:
 380       assert (! "unknown token in category `LC_MONETARY': should not happen");
 381     }
 382 }
 383
 384
 385 static int
 386 curr_strcmp(const char *s1, const char **s2)
 387 {
 388   return strcmp (s1, *s2);
 389 }