2 * Copyright (c) 2010 Ævar Arnfjörð Bjarmason
15 # ifdef GIT_WINDOWS_NATIVE
17 static const char *locale_charset(void)
19 const char *env
= getenv("LC_ALL"), *dot
;
22 env
= getenv("LC_CTYPE");
29 dot
= strchr(env
, '.');
30 return !dot
? env
: dot
+ 1;
33 # elif defined HAVE_LIBCHARSET_H
34 # include <libcharset.h>
36 # include <langinfo.h>
37 # define locale_charset() nl_langinfo(CODESET)
41 static const char *charset
;
44 * Guess the user's preferred languages from the value in LANGUAGE environment
45 * variable and LC_MESSAGES locale category if NO_GETTEXT is not defined.
47 * The result can be a colon-separated list like "ko:ja:en".
49 const char *get_preferred_languages(void)
53 retval
= getenv("LANGUAGE");
54 if (retval
&& *retval
)
58 retval
= setlocale(LC_MESSAGES
, NULL
);
59 if (retval
&& *retval
&&
60 strcmp(retval
, "C") &&
61 strcmp(retval
, "POSIX"))
69 __attribute__((format (printf
, 1, 2)))
70 static int test_vsnprintf(const char *fmt
, ...)
76 ret
= vsnprintf(buf
, sizeof(buf
), fmt
, ap
);
81 static void init_gettext_charset(const char *domain
)
83 setlocale(LC_CTYPE
, "");
84 charset
= locale_charset();
85 bind_textdomain_codeset(domain
, charset
);
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
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.
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.
101 if (test_vsnprintf("%.*s", 13, "David_K\345gedal") < 0)
102 setlocale(LC_CTYPE
, "C");
105 void git_setup_gettext(void)
107 const char *podir
= getenv(GIT_TEXT_DOMAIN_DIR_ENVIRONMENT
);
111 podir
= p
= system_path(GIT_LOCALE_PATH
);
113 if (!is_directory(podir
)) {
118 bindtextdomain("git", podir
);
119 setlocale(LC_MESSAGES
, "");
120 setlocale(LC_TIME
, "");
121 init_gettext_charset("git");
127 /* return the number of columns of string 's' in current locale */
128 int gettext_width(const char *s
)
130 static int is_utf8
= -1;
132 is_utf8
= is_utf8_locale();
134 return is_utf8
? utf8_strwidth(s
) : strlen(s
);
138 int is_utf8_locale(void)
142 const char *env
= getenv("LC_ALL");
144 env
= getenv("LC_CTYPE");
146 env
= getenv("LANG");
149 if (strchr(env
, '.'))
150 env
= strchr(env
, '.') + 1;
151 charset
= xstrdup(env
);
154 return is_encoding_utf8(charset
);