1 /* Message translation utilities.
2 Copyright (C) 2001-2018 Free Software Foundation, Inc.
3
4 This file is part of GCC.
5
6 GCC is free software; you can redistribute it and/or modify it under
7 the terms of the GNU General Public License as published by the Free
8 Software Foundation; either version 3, or (at your option) any later
9 version.
10
11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
12 WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
19
20 #include "config.h"
21 #include "system.h"
22 #include "coretypes.h"
23 #include "intl.h"
24
25 #ifdef HAVE_LANGINFO_CODESET
26 #include <langinfo.h>
27 #endif
28
29 /* Opening quotation mark for diagnostics. */
30 const char *open_quote = "'";
31
32 /* Closing quotation mark for diagnostics. */
33 const char *close_quote = "'";
34
35 /* The name of the locale encoding. */
36 const char *locale_encoding = NULL;
37
38 /* Whether the locale is using UTF-8. */
39 bool locale_utf8 = false;
40
41 #ifdef ENABLE_NLS
42
43 /* Initialize the translation library for GCC. This performs the
44 appropriate sequence of calls - setlocale, bindtextdomain,
45 textdomain. LC_CTYPE determines the character set used by the
46 terminal, so it has be set to output messages correctly. */
47
48 void
gcc_init_libintl(void)49 gcc_init_libintl (void)
50 {
51 #ifdef HAVE_LC_MESSAGES
52 setlocale (LC_CTYPE, "");
53 setlocale (LC_MESSAGES, "");
54 #else
55 setlocale (LC_ALL, "");
56 #endif
57
58 (void) bindtextdomain ("gcc", LOCALEDIR);
59 (void) textdomain ("gcc");
60
61 /* Opening quotation mark. */
62 open_quote = _("`");
63
64 /* Closing quotation mark. */
65 close_quote = _("'");
66
67 #if defined HAVE_LANGINFO_CODESET
68 locale_encoding = nl_langinfo (CODESET);
69 if (locale_encoding != NULL
70 && (!strcasecmp (locale_encoding, "utf-8")
71 || !strcasecmp (locale_encoding, "utf8")))
72 locale_utf8 = true;
73 #endif
74
75 if (!strcmp (open_quote, "`") && !strcmp (close_quote, "'"))
76 {
77 /* Untranslated quotes that it may be possible to replace with
78 U+2018 and U+2019; but otherwise use "'" instead of "`" as
79 opening quote. */
80 open_quote = "'";
81 #if defined HAVE_LANGINFO_CODESET
82 if (locale_utf8)
83 {
84 open_quote = "\xe2\x80\x98";
85 close_quote = "\xe2\x80\x99";
86 }
87 #endif
88 }
89 }
90
91 #if defined HAVE_WCHAR_H && defined HAVE_WORKING_MBSTOWCS && defined HAVE_WCSWIDTH
92 #include <wchar.h>
93
94 /* Returns the width in columns of MSGSTR, which came from gettext.
95 This is for indenting subsequent output. */
96
97 size_t
gcc_gettext_width(const char * msgstr)98 gcc_gettext_width (const char *msgstr)
99 {
100 size_t nwcs = mbstowcs (0, msgstr, 0);
101 wchar_t *wmsgstr = XALLOCAVEC (wchar_t, nwcs + 1);
102
103 mbstowcs (wmsgstr, msgstr, nwcs + 1);
104 return wcswidth (wmsgstr, nwcs);
105 }
106
107 #else /* no wcswidth */
108
109 /* We don't have any way of knowing how wide the string is. Guess
110 the length of the string. */
111
112 size_t
gcc_gettext_width(const char * msgstr)113 gcc_gettext_width (const char *msgstr)
114 {
115 return strlen (msgstr);
116 }
117
118 #endif
119
120 #endif /* ENABLE_NLS */
121
122 #ifndef ENABLE_NLS
123
124 const char *
fake_ngettext(const char * singular,const char * plural,unsigned long n)125 fake_ngettext (const char *singular, const char *plural, unsigned long n)
126 {
127 if (n == 1UL)
128 return singular;
129
130 return plural;
131 }
132
133 #endif
134
135 /* Return the indent for successive lines, using the width of
136 the STR. STR must have been translated already. The string
137 must be freed by the caller. */
138
139 char *
get_spaces(const char * str)140 get_spaces (const char *str)
141 {
142 size_t len = gcc_gettext_width (str);
143 char *spaces = XNEWVEC (char, len + 1);
144 memset (spaces, ' ', len);
145 spaces[len] = '\0';
146 return spaces;
147 }
148
149
150
151