This function returns true if git is running under an UTF-8
locale. pcre in the next patch will need this.
is_encoding_utf8() is used instead of strcmp() to catch both "utf-8"
and "utf8" suffixes.
When built with no gettext support, we peek in several env variables
to detect UTF-8. pcre library might support utf-8 even if libc is
built without locale support.. The peeking code is a copy from
compat/regex/regcomp.c
Helped-by: Ævar Arnfjörð Bjarmason <ava...@gmail.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
gettext.c | 24 ++++++++++++++++++++++--
gettext.h | 1 +
2 files changed, 23 insertions(+), 2 deletions(-)
diff --git a/gettext.c b/gettext.c
index a268a2c..db727ea 100644
--- a/gettext.c
+++ b/gettext.c
@@ -18,6 +18,8 @@
# 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.
@@ -65,7 +67,6 @@ static int test_vsnprintf(const char *fmt, ...)
return ret;
}
-static const char *charset;
static void init_gettext_charset(const char *domain)
{
/*
@@ -172,8 +173,27 @@ int gettext_width(const char *s)
{
static int is_utf8 = -1;
if (is_utf8 == -1)
- is_utf8 = !strcmp(charset, "UTF-8");
+ 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);
+}
diff --git a/gettext.h b/gettext.h
index 33696a4..7eee64a 100644
--- a/gettext.h
+++ b/gettext.h
@@ -90,5 +90,6 @@ const char *Q_(const char *msgid, const char *plu, unsigned
long n)
#endif
const char *get_preferred_languages(void);
+extern int is_utf8_locale(void);
#endif
--
2.7.0.377.g4cd97dd
--
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