about summary refs log tree commit diff
path: root/locale/programs/ld-monetary.c
blob: 4aede4691f848f0b03758e7b3f7478081c3f069a (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
/* Copyright (C) 1995, 1996, 1997, 1998 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, 1995.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 of the
   License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include <langinfo.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>


/* Undefine following line in production version.  */
/* #define NDEBUG 1 */
#include <assert.h>

#include "locales.h"
#include "localeinfo.h"
#include "stringtrans.h"

extern void *xmalloc (size_t __n);
extern void *xrealloc (void *__ptr, size_t __n);


/* The real definition of the struct for the LC_NUMERIC locale.  */
struct locale_monetary_t
{
  const char *int_curr_symbol;
  const char *currency_symbol;
  const char *mon_decimal_point;
  const char *mon_thousands_sep;
  char *mon_grouping;
  size_t mon_grouping_max;
  size_t mon_grouping_act;
  const char *positive_sign;
  const char *negative_sign;
  signed char int_frac_digits;
  signed char frac_digits;
  signed char p_cs_precedes;
  signed char p_sep_by_space;
  signed char n_cs_precedes;
  signed char n_sep_by_space;
  signed char p_sign_posn;
  signed char n_sign_posn;
};


/* The content iof the field int_curr_symbol has to be taken from
   ISO-4217.  We test for correct values.  */
#define DEFINE_INT_CURR(str) str,
static const char *const valid_int_curr[] =
  {
#   include "../iso-4217.def"
  };
#define NR_VALID_INT_CURR ((sizeof (valid_int_curr) \
			    / sizeof (valid_int_curr[0])))
#undef DEFINE_INT_CURR


/* Prototypes for local functions.  */
static int curr_strcmp(const char *s1, const char **s2);


void
monetary_startup (struct linereader *lr, struct localedef_t *locale,
		  struct charset_t *charset)
{
  struct locale_monetary_t *monetary;

  /* We have a definition for LC_MONETARY.  */
  copy_posix.mask &= ~(1 << LC_MONETARY);

  /* It is important that we always use UCS1 encoding for strings now.  */
  encoding_method = ENC_UCS1;

  locale->categories[LC_MONETARY].monetary = monetary =
    (struct locale_monetary_t *) xmalloc (sizeof (struct locale_monetary_t));

  memset (monetary, '\0', sizeof (struct locale_monetary_t));

  monetary->mon_grouping_max = 80;
  monetary->mon_grouping =
    (char *) xmalloc (monetary->mon_grouping_max);
  monetary->mon_grouping_act = 0;

  monetary->int_frac_digits = -2;
  monetary->frac_digits = -2;
  monetary->p_cs_precedes = -2;
  monetary->p_sep_by_space = -2;
  monetary->n_cs_precedes = -2;
  monetary->n_sep_by_space = -2;
  monetary->p_sign_posn = -2;
  monetary->n_sign_posn = -2;
}


void
monetary_finish (struct localedef_t *locale)
{
  struct locale_monetary_t *monetary
    = locale->categories[LC_MONETARY].monetary;

#define TEST_ELEM(cat)							      \
  if (monetary->cat == NULL && !be_quiet)				      \
    error (0, 0, _("field `%s' in category `%s' not defined"),		      \
	   #cat, "LC_MONETARY")

  TEST_ELEM (int_curr_symbol);
  TEST_ELEM (currency_symbol);
  TEST_ELEM (mon_decimal_point);
  TEST_ELEM (mon_thousands_sep);
  TEST_ELEM (positive_sign);
  TEST_ELEM (negative_sign);

  /* The international currency symbol must come from ISO 4217.  */
  if (monetary->int_curr_symbol != NULL)
    {
      if (strlen (monetary->int_curr_symbol) != 4
	  && monetary->int_curr_symbol[0] != '\0')
	{
	  if (!be_quiet)
	    error (0, 0, _("\
value of field `int_curr_symbol' in category `LC_MONETARY' has wrong length"));
	}
      else if (monetary->int_curr_symbol[0] != '\0'
	       && bsearch (monetary->int_curr_symbol, valid_int_curr,
			   NR_VALID_INT_CURR, sizeof (const char *),
			   (comparison_fn_t) curr_strcmp) == NULL
	       && !be_quiet)
	error (0, 0, _("\
value of field `int_curr_symbol' in category `LC_MONETARY' does \
not correspond to a valid name in ISO 4217"));
    }

  /* The decimal point must not be empty.  This is not said explicitly
     in POSIX but ANSI C (ISO/IEC 9899) says in 4.4.2.1 it has to be
     != "".  */
  if (monetary->mon_decimal_point[0] == '\0' && !be_quiet)
    {
      error (0, 0, _("\
value for field `%s' in category `%s' must not be the empty string"),
	     "mon_decimal_point", "LC_MONETARY");
    }

  if (monetary->mon_grouping_act == 0 && !be_quiet)
    error (0, 0, _("field `%s' in category `%s' not defined"),
	   "mon_grouping", "LC_MONETARY");

#undef TEST_ELEM
#define TEST_ELEM(cat, min, max)					      \
  if (monetary->cat == -2 && !be_quiet)					      \
    error (0, 0, _("field `%s' in category `%s' not defined"),		      \
	   #cat, "LC_MONETARY");					      \
  else if ((monetary->cat < min || monetary->cat > max) && !be_quiet)	      \
    error (0, 0, _("\
value for field `%s' in category `%s' must be in range %d...%d"),	      \
	   #cat, "LC_MONETARY", min, max)

#if 0
										/* The following two test are not really necessary because all values
    the variable could have are valid.  */
  TEST_ELEM (int_frac_digits, -128, 127);	/* No range check.  */
  TEST_ELEM (frac_digits, -128, 127);		/* No range check.  */
#endif
  TEST_ELEM (p_cs_precedes, -1, 1);
  TEST_ELEM (p_sep_by_space, -1, 2);
  TEST_ELEM (n_cs_precedes, -1, 1);
  TEST_ELEM (n_sep_by_space, -1, 2);
  TEST_ELEM (p_sign_posn, -1, 4);
  TEST_ELEM (n_sign_posn, -1, 4);
}


void
monetary_output (struct localedef_t *locale, const char *output_path)
{
  struct locale_monetary_t *monetary
    = locale->categories[LC_MONETARY].monetary;
  struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY)];
  struct locale_file data;
  u_int32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_MONETARY)];
  size_t cnt = 0;

  if ((locale->binary & (1 << LC_MONETARY)) != 0)
    {
      iov[0].iov_base = monetary;
      iov[0].iov_len = locale->len[LC_MONETARY];

      write_locale_data (output_path, "LC_MONETARY", 1, iov);

      return;
    }

  data.magic = LIMAGIC (LC_MONETARY);
  data.n = _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY);
  iov[cnt].iov_base = (void *) &data;
  iov[cnt].iov_len = sizeof (data);
  ++cnt;

  iov[cnt].iov_base = (void *) idx;
  iov[cnt].iov_len = sizeof (idx);
  ++cnt;

  idx[cnt - 2] = iov[0].iov_len + iov[1].iov_len;
  iov[cnt].iov_base = (void *) (monetary->int_curr_symbol ?: "");
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) (monetary->currency_symbol ?: "");
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) (monetary->mon_decimal_point ?: "");
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) (monetary->mon_thousands_sep ?: "");
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = alloca (monetary->mon_grouping_act + 1);
  iov[cnt].iov_len = monetary->mon_grouping_act + 1;
  memcpy (iov[cnt].iov_base, monetary->mon_grouping,
	  monetary->mon_grouping_act);
  ((char *) iov[cnt].iov_base)[monetary->mon_grouping_act] = '\0';
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) (monetary->positive_sign ?: "");
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) (monetary->negative_sign ?: "");
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->int_frac_digits;
  iov[cnt].iov_len = 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->frac_digits;
  iov[cnt].iov_len = 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->p_cs_precedes;
  iov[cnt].iov_len = 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->p_sep_by_space;
  iov[cnt].iov_len = 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->n_cs_precedes;
  iov[cnt].iov_len = 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->n_sep_by_space;
  iov[cnt].iov_len = 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->p_sign_posn;
  iov[cnt].iov_len = 1;
  ++cnt;

  idx[cnt - 2] = idx[cnt - 3] + iov[cnt - 1].iov_len;
  iov[cnt].iov_base = (void *) &monetary->n_sign_posn;
  iov[cnt].iov_len = 1;

  assert (cnt + 1 == 2 + _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY));

  write_locale_data (output_path, "LC_MONETARY",
		     2 + _NL_ITEM_INDEX (_NL_NUM_LC_MONETARY), iov);
}


void
monetary_add (struct linereader *lr, struct localedef_t *locale,
	      enum token_t tok, struct token *code,
	      struct charset_t *charset)
{
  struct locale_monetary_t *monetary
    = locale->categories[LC_MONETARY].monetary;

  switch (tok)
    {
#define STR_ELEM(cat)							      \
    case tok_##cat:							      \
      if (monetary->cat != NULL)					      \
	lr_error (lr, _("\
field `%s' in category `%s' declared more than once"),			      \
		  #cat, "LC_MONETARY");					      \
      else if (code->val.str.start == NULL)				      \
	{								      \
	  lr_error (lr, _("unknown character in field `%s' of category `%s'"),\
		    #cat, "LC_MONETARY");				      \
	  monetary->cat = "";						      \
	}								      \
      else								      \
	monetary->cat = code->val.str.start;				      \
      break

    STR_ELEM (int_curr_symbol);
    STR_ELEM (currency_symbol);
    STR_ELEM (mon_decimal_point);
    STR_ELEM (mon_thousands_sep);
    STR_ELEM (positive_sign);
    STR_ELEM (negative_sign);

#define INT_ELEM(cat)							      \
    case tok_##cat:							      \
      if (monetary->cat != -2)						      \
	lr_error (lr, _("\
field `%s' in category `%s' declared more than once"),			      \
		  #cat, "LC_MONETARY");					      \
      else if (code->tok == tok_minus1)					      \
	monetary->cat = -1;						      \
      else								      \
	monetary->cat = code->val.num;					      \
      break

    INT_ELEM (int_frac_digits);
    INT_ELEM (frac_digits);
    INT_ELEM (p_cs_precedes);
    INT_ELEM (p_sep_by_space);
    INT_ELEM (n_cs_precedes);
    INT_ELEM (n_sep_by_space);
    INT_ELEM (p_sign_posn);
    INT_ELEM (n_sign_posn);

    case tok_mon_grouping:
      if (monetary->mon_grouping_act == monetary->mon_grouping_max)
	{
	  monetary->mon_grouping_max *= 2;
	  monetary->mon_grouping =
	    (char *) xrealloc (monetary->mon_grouping,
			       monetary->mon_grouping_max);
	}
      if (monetary->mon_grouping[monetary->mon_grouping_act - 1]
	  == '\177')
	lr_error (lr, _("\
`-1' must be last entry in `%s' field in `%s' category"),
		  "mon_grouping", "LC_MONETARY");
      else
	{
	  if (code->tok == tok_minus1)
	    monetary->mon_grouping[monetary->mon_grouping_act++] = '\177';
	  else if (code->val.num == 0)
	    /* A value of 0 disables grouping from here on but we must
	       not store a NUL character since this terminates the
	       string.  Use something different which must not be used
	       otherwise.  */
	    monetary->mon_grouping[monetary->mon_grouping_act++] = '\377';
	  else if (code->val.num > 126)
	    lr_error (lr, _("\
values for field `%s' in category `%s' must be smaller than 127"),
		      "mon_grouping", "LC_MONETARY");
	  else
	    monetary->mon_grouping[monetary->mon_grouping_act++]
	      = code->val.num;
	}
      break;

    default:
      assert (! "unknown token in category `LC_MONETARY': should not happen");
    }
}


static int
curr_strcmp(const char *s1, const char **s2)
{
  return strcmp (s1, *s2);
}