freshlybakedca.ke
Git fork
1/*
2 * Copyright (c) 2010 Ævar Arnfjörð Bjarmason
3 */
4
5#define DISABLE_SIGN_COMPARE_WARNINGS
6
7#include "git-compat-util.h"
8#include "abspath.h"
9#include "environment.h"
10#include "exec-cmd.h"
11#include "gettext.h"
12#include "utf8.h"
13
14#ifndef NO_GETTEXT
15# include <libintl.h>
16# ifdef GIT_WINDOWS_NATIVE
17
18static const char *locale_charset(void)
19{
20 const char *env = getenv("LC_ALL"), *dot;
21
22 if (!env || !*env)
23 env = getenv("LC_CTYPE");
24 if (!env || !*env)
25 env = getenv("LANG");
26
27 if (!env)
28 return "UTF-8";
29
30 dot = strchr(env, '.');
31 return !dot ? env : dot + 1;
32}
33
34# elif defined HAVE_LIBCHARSET_H
35# include <libcharset.h>
36# else
37# include <langinfo.h>
38# define locale_charset() nl_langinfo(CODESET)
39# endif
40#endif
41
42static const char *charset;
43
44/*
45 * Guess the user's preferred languages from the value in LANGUAGE environment
46 * variable and LC_MESSAGES locale category if NO_GETTEXT is not defined.
47 *
48 * The result can be a colon-separated list like "ko:ja:en".
49 */
50const char *get_preferred_languages(void)
51{
52 const char *retval;
53
54 retval = getenv("LANGUAGE");
55 if (retval && *retval)
56 return retval;
57
58#ifndef NO_GETTEXT
59 retval = setlocale(LC_MESSAGES, NULL);
60 if (retval && *retval &&
61 strcmp(retval, "C") &&
62 strcmp(retval, "POSIX"))
63 return retval;
64#endif
65
66 return NULL;
67}
68
69#ifndef NO_GETTEXT
70__attribute__((format (printf, 1, 2)))
71static int test_vsnprintf(const char *fmt, ...)
72{
73 char buf[26];
74 int ret;
75 va_list ap;
76 va_start(ap, fmt);
77 ret = vsnprintf(buf, sizeof(buf), fmt, ap);
78 va_end(ap);
79 return ret;
80}
81
82static void init_gettext_charset(const char *domain)
83{
84 charset = locale_charset();
85 bind_textdomain_codeset(domain, charset);
86
87 /*
88 * Work around an old bug fixed in glibc 2.17 (released on
89 * 2012-12-24), at the cost of potentially making translated
90 * messages from external functions like perror() emitted in
91 * the wrong encoding.
92 *
93 * The bug affected e.g. git.git's own 7eb93c89651 ([PATCH]
94 * Simplify git script, 2005-09-07), which is the origin of
95 * the "David_K\345gedal" test string.
96 *
97 * See a much longer comment added to this file in 5e9637c6297
98 * (i18n: add infrastructure for translating Git with gettext,
99 * 2011-11-18) for more details.
100 */
101 if (test_vsnprintf("%.*s", 13, "David_K\345gedal") < 0)
102 setlocale(LC_CTYPE, "C");
103}
104
105int git_gettext_enabled = 0;
106
107void git_setup_gettext(void)
108{
109 const char *podir = getenv(GIT_TEXT_DOMAIN_DIR_ENVIRONMENT);
110 char *p = NULL;
111
112 if (!podir)
113 podir = p = system_path(GIT_LOCALE_PATH);
114
115 if (!is_directory(podir)) {
116 free(p);
117 return;
118 }
119
120 bindtextdomain("git", podir);
121 setlocale(LC_MESSAGES, "");
122 setlocale(LC_TIME, "");
123 init_gettext_charset("git");
124 textdomain("git");
125
126 git_gettext_enabled = 1;
127
128 free(p);
129}
130
131/* return the number of columns of string 's' in current locale */
132int gettext_width(const char *s)
133{
134 static int is_utf8 = -1;
135 if (is_utf8 == -1)
136 is_utf8 = is_utf8_locale();
137
138 return is_utf8 ? utf8_strwidth(s) : strlen(s);
139}
140#endif
141
142int is_utf8_locale(void)
143{
144#ifdef NO_GETTEXT
145 if (!charset) {
146 const char *env = getenv("LC_ALL");
147 if (!env || !*env)
148 env = getenv("LC_CTYPE");
149 if (!env || !*env)
150 env = getenv("LANG");
151 if (!env)
152 env = "";
153 if (strchr(env, '.'))
154 env = strchr(env, '.') + 1;
155 charset = xstrdup(env);
156 }
157#endif
158 return is_encoding_utf8(charset);
159}