1/* Message translation utilities.
2   Copyright (C) 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
3
4This file is part of GCC.
5
6GCC is free software; you can redistribute it and/or modify it under
7the terms of the GNU General Public License as published by the Free
8Software Foundation; either version 2, or (at your option) any later
9version.
10
11GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12WARRANTY; without even the implied warranty of MERCHANTABILITY or
13FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
14for more details.
15
16You should have received a copy of the GNU General Public License
17along with GCC; see the file COPYING.  If not, write to the Free
18Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
1902110-1301, USA.  */
20
21#include "config.h"
22#include "system.h"
23#include "coretypes.h"
24#include "tm.h"
25#include "intl.h"
26
27#ifdef HAVE_LANGINFO_CODESET
28#include <langinfo.h>
29#endif
30
31/* Opening quotation mark for diagnostics.  */
32const char *open_quote = "'";
33
34/* Closing quotation mark for diagnostics.  */
35const char *close_quote = "'";
36
37#ifdef ENABLE_NLS
38
39/* Initialize the translation library for GCC.  This performs the
40   appropriate sequence of calls - setlocale, bindtextdomain,
41   textdomain.  LC_CTYPE determines the character set used by the
42   terminal, so it has be set to output messages correctly.  */
43
44void
45gcc_init_libintl (void)
46{
47#ifdef HAVE_LC_MESSAGES
48  setlocale (LC_CTYPE, "");
49  setlocale (LC_MESSAGES, "");
50#else
51  setlocale (LC_ALL, "");
52#endif
53
54  (void) bindtextdomain ("gcc", LOCALEDIR);
55  (void) textdomain ("gcc");
56
57  /* Opening quotation mark.  */
58  open_quote = _("`");
59
60  /* Closing quotation mark.  */
61  close_quote = _("'");
62
63  if (!strcmp (open_quote, "`") && !strcmp (close_quote, "'"))
64    {
65#if defined HAVE_LANGINFO_CODESET
66      const char *encoding;
67#endif
68      /* Untranslated quotes that it may be possible to replace with
69	 U+2018 and U+2019; but otherwise use "'" instead of "`" as
70	 opening quote.  */
71      open_quote = "'";
72#if defined HAVE_LANGINFO_CODESET
73      encoding = nl_langinfo (CODESET);
74      if (encoding != NULL
75	  && (!strcasecmp (encoding, "utf-8")
76	      || !strcasecmp (encoding, "utf8")))
77	{
78	  open_quote = "\xe2\x80\x98";
79	  close_quote = "\xe2\x80\x99";
80	}
81#endif
82    }
83}
84
85#if defined HAVE_WCHAR_H && defined HAVE_WORKING_MBSTOWCS && defined HAVE_WCSWIDTH
86#include <wchar.h>
87
88/* Returns the width in columns of MSGSTR, which came from gettext.
89   This is for indenting subsequent output.  */
90
91size_t
92gcc_gettext_width (const char *msgstr)
93{
94  size_t nwcs = mbstowcs (0, msgstr, 0);
95  wchar_t *wmsgstr = alloca ((nwcs + 1) * sizeof (wchar_t));
96
97  mbstowcs (wmsgstr, msgstr, nwcs + 1);
98  return wcswidth (wmsgstr, nwcs);
99}
100
101#else  /* no wcswidth */
102
103/* We don't have any way of knowing how wide the string is.  Guess
104   the length of the string.  */
105
106size_t
107gcc_gettext_width (const char *msgstr)
108{
109  return strlen (msgstr);
110}
111
112#endif
113
114#endif /* ENABLE_NLS */
115