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1819ad327b
The commit 29de20504e (Makefile: fix default regex settings on
Darwin, 2013-05-11) fixed t0070-fundamental.sh under Darwin (macOS) by
adopting Git's regex library. However, this library is compiled with
NO_MBSUPPORT, which causes git-grep to work incorrectly on multibyte
(e.g. UTF-8) files. Current macOS versions pass t0070-fundamental.sh
with the native macOS regex library, which also supports multibyte
characters.
Adjust the Makefile to use the native regex library, and call
setlocale(3) to set CTYPE according to the user's preference.
The setlocale call is required on all platforms, but in platforms
supporting gettext(3), setlocale was called as a side-effect of
initializing gettext. Therefore, move the CTYPE setlocale call from
gettext.c to common-main.c and the corresponding locale.h include
into git-compat-util.h.
Thanks to the global initialization of CTYPE setlocale, the test-tool
regex command now works correctly with supported multibyte regexes, and
is used to set the MB_REGEX test prerequisite by assessing a platform's
support for them.
Signed-off-by: Diomidis Spinellis <dds@aueb.gr>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
154 lines
3.1 KiB
C
154 lines
3.1 KiB
C
/*
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* Copyright (c) 2010 Ævar Arnfjörð Bjarmason
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*/
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#include "cache.h"
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#include "exec-cmd.h"
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#include "gettext.h"
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#include "strbuf.h"
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#include "utf8.h"
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#include "config.h"
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#ifndef NO_GETTEXT
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# include <libintl.h>
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# ifdef GIT_WINDOWS_NATIVE
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static const char *locale_charset(void)
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{
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const char *env = getenv("LC_ALL"), *dot;
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if (!env || !*env)
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env = getenv("LC_CTYPE");
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if (!env || !*env)
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env = getenv("LANG");
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if (!env)
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return "UTF-8";
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dot = strchr(env, '.');
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return !dot ? env : dot + 1;
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}
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# elif defined HAVE_LIBCHARSET_H
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# include <libcharset.h>
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# else
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# include <langinfo.h>
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# define locale_charset() nl_langinfo(CODESET)
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# endif
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#endif
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static const char *charset;
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/*
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* Guess the user's preferred languages from the value in LANGUAGE environment
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* variable and LC_MESSAGES locale category if NO_GETTEXT is not defined.
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*
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* The result can be a colon-separated list like "ko:ja:en".
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*/
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const char *get_preferred_languages(void)
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{
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const char *retval;
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retval = getenv("LANGUAGE");
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if (retval && *retval)
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return retval;
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#ifndef NO_GETTEXT
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retval = setlocale(LC_MESSAGES, NULL);
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if (retval && *retval &&
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strcmp(retval, "C") &&
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strcmp(retval, "POSIX"))
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return retval;
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#endif
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return NULL;
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}
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#ifndef NO_GETTEXT
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__attribute__((format (printf, 1, 2)))
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static int test_vsnprintf(const char *fmt, ...)
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{
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char buf[26];
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int ret;
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va_list ap;
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va_start(ap, fmt);
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ret = vsnprintf(buf, sizeof(buf), fmt, ap);
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va_end(ap);
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return ret;
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}
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static void init_gettext_charset(const char *domain)
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{
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charset = locale_charset();
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bind_textdomain_codeset(domain, charset);
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/*
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* Work around an old bug fixed in glibc 2.17 (released on
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* 2012-12-24), at the cost of potentially making translated
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* messages from external functions like perror() emitted in
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* the wrong encoding.
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*
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* The bug affected e.g. git.git's own 7eb93c89651 ([PATCH]
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* Simplify git script, 2005-09-07), which is the origin of
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* the "David_K\345gedal" test string.
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*
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* See a much longer comment added to this file in 5e9637c6297
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* (i18n: add infrastructure for translating Git with gettext,
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* 2011-11-18) for more details.
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*/
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if (test_vsnprintf("%.*s", 13, "David_K\345gedal") < 0)
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setlocale(LC_CTYPE, "C");
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}
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void git_setup_gettext(void)
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{
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const char *podir = getenv(GIT_TEXT_DOMAIN_DIR_ENVIRONMENT);
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char *p = NULL;
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if (!podir)
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podir = p = system_path(GIT_LOCALE_PATH);
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if (!is_directory(podir)) {
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free(p);
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return;
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}
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bindtextdomain("git", podir);
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setlocale(LC_MESSAGES, "");
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setlocale(LC_TIME, "");
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init_gettext_charset("git");
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textdomain("git");
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free(p);
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}
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/* return the number of columns of string 's' in current locale */
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int gettext_width(const char *s)
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{
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static int is_utf8 = -1;
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if (is_utf8 == -1)
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is_utf8 = is_utf8_locale();
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return is_utf8 ? utf8_strwidth(s) : strlen(s);
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}
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#endif
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int is_utf8_locale(void)
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{
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#ifdef NO_GETTEXT
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if (!charset) {
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const char *env = getenv("LC_ALL");
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if (!env || !*env)
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env = getenv("LC_CTYPE");
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if (!env || !*env)
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env = getenv("LANG");
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if (!env)
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env = "";
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if (strchr(env, '.'))
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env = strchr(env, '.') + 1;
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charset = xstrdup(env);
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}
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#endif
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return is_encoding_utf8(charset);
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}
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