summaryrefslogtreecommitdiff
path: root/locale/programs/ld-messages.c
blob: 288979f45429ced90775a6163f879879eb43973d (plain)
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
/* 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 <alloca.h>
#include <langinfo.h>
#include <string.h>
#include <sys/uio.h>

#ifdef HAVE_REGEX
# include <regex.h>
#else
# include <rx.h>
#endif

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

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


extern void *xmalloc (size_t __n);


/* The real definition of the struct for the LC_MESSAGES locale.  */
struct locale_messages_t
{
  const char *yesexpr;
  const char *noexpr;
  const char *yesstr;
  const char *nostr;
};


void
messages_startup (struct linereader *lr, struct localedef_t *locale,
		  struct charset_t *charset)
{
  struct locale_messages_t *messages;

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

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

  locale->categories[LC_MESSAGES].messages = messages =
    (struct locale_messages_t *) xmalloc (sizeof (struct locale_messages_t));

  memset (messages, '\0', sizeof (struct locale_messages_t));
}


void
messages_finish (struct localedef_t *locale)
{
  struct locale_messages_t *messages
    = locale->categories[LC_MESSAGES].messages;

  /* The fields YESSTR and NOSTR are optional.  */
  if (messages->yesexpr == NULL)
    {
      if (!be_quiet)
	error (0, 0, _("field `%s' in category `%s' undefined"),
	       "yesexpr", "LC_MESSAGES");
    }
  else
    {
      int result;
      regex_t re;

      /* Test whether it is a correct regular expression.  */
      result = regcomp (&re, messages->yesexpr, REG_EXTENDED);
      if (result != 0 && !be_quiet)
	{
	  char errbuf[BUFSIZ];

	  (void) regerror (result, &re, errbuf, BUFSIZ);
	  error (0, 0, _("\
no correct regular expression for field `%s' in category `%s': %s"),
		 "yesexpr", "LC_MESSAGES", errbuf);
	}
    }

  if (messages->noexpr == NULL)
    {
      if (!be_quiet)
	error (0, 0, _("field `%s' in category `%s' undefined"),
	       "noexpr", "LC_MESSAGES");
    }
  else
    {
      int result;
      regex_t re;

      /* Test whether it is a correct regular expression.  */
      result = regcomp (&re, messages->noexpr, REG_EXTENDED);
      if (result != 0 && !be_quiet)
	{
	  char errbuf[BUFSIZ];

	  (void) regerror (result, &re, errbuf, BUFSIZ);
	  error (0, 0, _("\
no correct regular expression for field `%s' in category `%s': %s"),
		 "noexpr", "LC_MESSAGES", errbuf);
	}
    }
}


void
messages_output (struct localedef_t *locale, const char *output_path)
{
  struct locale_messages_t *messages
    = locale->categories[LC_MESSAGES].messages;
  struct iovec iov[2 + _NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES)];
  struct locale_file data;
  u_int32_t idx[_NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES)];
  size_t cnt = 0;

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

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

      return;
    }

  data.magic = LIMAGIC (LC_MESSAGES);
  data.n = _NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES);
  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 *) (messages->yesexpr ?: "");
  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 *) (messages->noexpr ?: "");
  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 *) (messages->yesstr ?: "");
  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 *) (messages->nostr ?: "");
  iov[cnt].iov_len = strlen (iov[cnt].iov_base) + 1;

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

  write_locale_data (output_path, "LC_MESSAGES",
		     2 + _NL_ITEM_INDEX (_NL_NUM_LC_MESSAGES), iov);
}


void
messages_add (struct linereader *lr, struct localedef_t *locale,
	      enum token_t tok, struct token *code,
	      struct charset_t *charset)
{
  struct locale_messages_t *messages
    = locale->categories[LC_MESSAGES].messages;

  switch (tok)
    {
    case tok_yesexpr:
      if (code->val.str.start == NULL)
	{
	  lr_error (lr, _("unknown character in field `%s' of category `%s'"),
		    "yesexpr", "LC_MESSAGES");
	  messages->yesexpr = "";
	}
      else
	messages->yesexpr = code->val.str.start;
      break;

    case tok_noexpr:
      if (code->val.str.start == NULL)
	{
	  lr_error (lr, _("unknown character in field `%s' of category `%s'"),
		    "noexpr", "LC_MESSAGES");
	  messages->noexpr = "";
	}
      else
	messages->noexpr = code->val.str.start;
      break;

    case tok_yesstr:
      if (code->val.str.start == NULL)
	{
	  lr_error (lr, _("unknown character in field `%s' of category `%s'"),
		    "yesstr", "LC_MESSAGES");
	  messages->yesstr = "";
	}
      else
	messages->yesstr = code->val.str.start;
      break;

    case tok_nostr:
      if (code->val.str.start == NULL)
	{
	  lr_error (lr, _("unknown character in field `%s' of category `%s'"),
		    "nostr", "LC_MESSAGES");
	  messages->nostr = "";
	}
      else
	messages->nostr = code->val.str.start;
      break;

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