In the previous change in this function, we add locale support for
single-byte encodings only. It looks like pcre only supports utf-* as
multibyte encodings, the others are left in the cold (which is
fine).
We need to enable PCRE_UTF8 so pcre can find character boundary
correctly. It's needed for case folding (when --ignore-case is used)
or '*', '+' or similar syntax is used.
The "has_non_ascii()" check is to be on the conservative side. If
there's non-ascii in the pattern, the searched content could still be
in utf-8, but we can treat it just like a byte stream and everything
should work. If we force utf-8 based on locale only and pcre validates
utf-8 and the file content is in non-utf8 encoding, things break.
Noticed-by: Plamen Totev <plamen.to...@abv.bg>
Helped-by: Plamen Totev <plamen.to...@abv.bg>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
grep.c | 2 ++
t/t7812-grep-icase-non-ascii.sh | 15 +++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/grep.c b/grep.c
index f0fbf99..07621c1 100644
--- a/grep.c
+++ b/grep.c
@@ -329,6 +329,8 @@ static void compile_pcre_regexp(struct grep_pat *p, const
struct grep_opt *opt)
p->pcre_tables = pcre_maketables();
options |= PCRE_CASELESS;
}
+ if (is_utf8_locale() && has_non_ascii(p->pattern))
+ options |= PCRE_UTF8;
p->pcre_regexp = pcre_compile(p->pattern, options, &error, &erroffset,
p->pcre_tables);
diff --git a/t/t7812-grep-icase-non-ascii.sh b/t/t7812-grep-icase-non-ascii.sh
index c945589..e861a15 100755
--- a/t/t7812-grep-icase-non-ascii.sh
+++ b/t/t7812-grep-icase-non-ascii.sh
@@ -16,6 +16,21 @@ test_expect_success GETTEXT_LOCALE 'grep literal string, no
-F' '
git grep -i "TILRAUN: HALLÓ HEIMUR!"
'
+test_expect_success GETTEXT_LOCALE,LIBPCRE 'grep pcre utf-8 icase' '
+ git grep --perl-regexp "TILRAUN: H.lló Heimur!" &&
+ git grep --perl-regexp -i "TILRAUN: H.lló Heimur!" &&
+ git grep --perl-regexp -i "TILRAUN: H.LLÓ HEIMUR!"
+'
+
+test_expect_success GETTEXT_LOCALE,LIBPCRE 'grep pcre utf-8 string with "+"' '
+ printf "TILRAUN: Hallóó Heimur!" >file2 &&
+ git add file2 &&
+ git grep -l --perl-regexp "TILRAUN: H.lló+ Heimur!" >actual &&
+ echo file >expected &&
+ echo file2 >>expected &&
+ test_cmp expected actual
+'
+
test_expect_success GETTEXT_LOCALE 'grep literal string, with -F' '
git grep --debug -i -F "TILRAUN: Halló Heimur!" 2>&1 >/dev/null |
grep fixed >debug1 &&
--
2.3.0.rc1.137.g477eb31
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
