160 lines
3.2 KiB
C
160 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2010 Ævar Arnfjörð Bjarmason
|
|
*/
|
|
|
|
#define DISABLE_SIGN_COMPARE_WARNINGS
|
|
|
|
#include "git-compat-util.h"
|
|
#include "abspath.h"
|
|
#include "environment.h"
|
|
#include "exec-cmd.h"
|
|
#include "gettext.h"
|
|
#include "utf8.h"
|
|
|
|
#ifndef NO_GETTEXT
|
|
# include <libintl.h>
|
|
# ifdef GIT_WINDOWS_NATIVE
|
|
|
|
static const char *locale_charset(void)
|
|
{
|
|
const char *env = getenv("LC_ALL"), *dot;
|
|
|
|
if (!env || !*env)
|
|
env = getenv("LC_CTYPE");
|
|
if (!env || !*env)
|
|
env = getenv("LANG");
|
|
|
|
if (!env)
|
|
return "UTF-8";
|
|
|
|
dot = strchr(env, '.');
|
|
return !dot ? env : dot + 1;
|
|
}
|
|
|
|
# elif defined HAVE_LIBCHARSET_H
|
|
# include <libcharset.h>
|
|
# else
|
|
# include <langinfo.h>
|
|
# define locale_charset() nl_langinfo(CODESET)
|
|
# endif
|
|
#endif
|
|
|
|
static const char *charset;
|
|
|
|
/*
|
|
* Guess the user's preferred languages from the value in LANGUAGE environment
|
|
* variable and LC_MESSAGES locale category if NO_GETTEXT is not defined.
|
|
*
|
|
* The result can be a colon-separated list like "ko:ja:en".
|
|
*/
|
|
const char *get_preferred_languages(void)
|
|
{
|
|
const char *retval;
|
|
|
|
retval = getenv("LANGUAGE");
|
|
if (retval && *retval)
|
|
return retval;
|
|
|
|
#ifndef NO_GETTEXT
|
|
retval = setlocale(LC_MESSAGES, NULL);
|
|
if (retval && *retval &&
|
|
strcmp(retval, "C") &&
|
|
strcmp(retval, "POSIX"))
|
|
return retval;
|
|
#endif
|
|
|
|
return NULL;
|
|
}
|
|
|
|
#ifndef NO_GETTEXT
|
|
__attribute__((format (printf, 1, 2)))
|
|
static int test_vsnprintf(const char *fmt, ...)
|
|
{
|
|
char buf[26];
|
|
int ret;
|
|
va_list ap;
|
|
va_start(ap, fmt);
|
|
ret = vsnprintf(buf, sizeof(buf), fmt, ap);
|
|
va_end(ap);
|
|
return ret;
|
|
}
|
|
|
|
static void init_gettext_charset(const char *domain)
|
|
{
|
|
charset = locale_charset();
|
|
bind_textdomain_codeset(domain, charset);
|
|
|
|
/*
|
|
* Work around an old bug fixed in glibc 2.17 (released on
|
|
* 2012-12-24), at the cost of potentially making translated
|
|
* messages from external functions like perror() emitted in
|
|
* the wrong encoding.
|
|
*
|
|
* The bug affected e.g. git.git's own 7eb93c89651 ([PATCH]
|
|
* Simplify git script, 2005-09-07), which is the origin of
|
|
* the "David_K\345gedal" test string.
|
|
*
|
|
* See a much longer comment added to this file in 5e9637c6297
|
|
* (i18n: add infrastructure for translating Git with gettext,
|
|
* 2011-11-18) for more details.
|
|
*/
|
|
if (test_vsnprintf("%.*s", 13, "David_K\345gedal") < 0)
|
|
setlocale(LC_CTYPE, "C");
|
|
}
|
|
|
|
int git_gettext_enabled = 0;
|
|
|
|
void git_setup_gettext(void)
|
|
{
|
|
const char *podir = getenv(GIT_TEXT_DOMAIN_DIR_ENVIRONMENT);
|
|
char *p = NULL;
|
|
|
|
if (!podir)
|
|
podir = p = system_path(GIT_LOCALE_PATH);
|
|
|
|
if (!is_directory(podir)) {
|
|
free(p);
|
|
return;
|
|
}
|
|
|
|
bindtextdomain("git", podir);
|
|
setlocale(LC_MESSAGES, "");
|
|
setlocale(LC_TIME, "");
|
|
init_gettext_charset("git");
|
|
textdomain("git");
|
|
|
|
git_gettext_enabled = 1;
|
|
|
|
free(p);
|
|
}
|
|
|
|
/* return the number of columns of string 's' in current locale */
|
|
int gettext_width(const char *s)
|
|
{
|
|
static int is_utf8 = -1;
|
|
if (is_utf8 == -1)
|
|
is_utf8 = is_utf8_locale();
|
|
|
|
return is_utf8 ? utf8_strwidth(s) : strlen(s);
|
|
}
|
|
#endif
|
|
|
|
int is_utf8_locale(void)
|
|
{
|
|
#ifdef NO_GETTEXT
|
|
if (!charset) {
|
|
const char *env = getenv("LC_ALL");
|
|
if (!env || !*env)
|
|
env = getenv("LC_CTYPE");
|
|
if (!env || !*env)
|
|
env = getenv("LANG");
|
|
if (!env)
|
|
env = "";
|
|
if (strchr(env, '.'))
|
|
env = strchr(env, '.') + 1;
|
|
charset = xstrdup(env);
|
|
}
|
|
#endif
|
|
return is_encoding_utf8(charset);
|
|
}
|