git-commit-vandalism/t/t7812-grep-icase-non-ascii.sh
Ævar Arnfjörð Bjarmason 870eea8166 grep: do not enter PCRE2_UTF mode on fixed matching
As discussed in the last commit partially fix a bug introduced in
b65abcafc7 ("grep: use PCRE v2 for optimized fixed-string search",
2019-07-01). Because PCRE v2, unlike kwset, validates its UTF-8 input
we'd die on e.g.:

    fatal: pcre2_match failed with error code -22: UTF-8 error:
    isolated byte with 0x80 bit set

When grepping a non-ASCII fixed string. This is a more general problem
that's hard to fix, but we can at least fix the most common case of
grepping for a fixed string without "-i". I can't think of a reason
for why we'd turn on PCRE2_UTF when matching byte-for-byte like that.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-07-26 13:56:40 -07:00

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#!/bin/sh
test_description='grep icase on non-English locales'
. ./lib-gettext.sh
test_expect_success GETTEXT_LOCALE 'setup' '
test_write_lines "TILRAUN: Halló Heimur!" >file &&
git add file &&
LC_ALL="$is_IS_locale" &&
export LC_ALL
'
test_have_prereq GETTEXT_LOCALE &&
test-tool regex "HALLÓ" "Halló" ICASE &&
test_set_prereq REGEX_LOCALE
test_expect_success REGEX_LOCALE 'grep literal string, no -F' '
git grep -i "TILRAUN: Halló Heimur!" &&
git grep -i "TILRAUN: HALLÓ HEIMUR!"
'
test_expect_success GETTEXT_LOCALE,PCRE '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,PCRE 'grep pcre utf-8 string with "+"' '
test_write_lines "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 REGEX_LOCALE 'grep literal string, with -F' '
git grep -i -F "TILRAUN: Halló Heimur!" &&
git grep -i -F "TILRAUN: HALLÓ HEIMUR!"
'
test_expect_success REGEX_LOCALE 'grep string with regex, with -F' '
test_write_lines "TILRAUN: Halló Heimur [abc]!" >file3 &&
git add file3 &&
git grep -i -F "TILRAUN: Halló Heimur [abc]!" file3
'
test_expect_success REGEX_LOCALE 'pickaxe -i on non-ascii' '
git commit -m first &&
git log --format=%f -i -S"TILRAUN: HALLÓ HEIMUR!" >actual &&
echo first >expected &&
test_cmp expected actual
'
test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: setup invalid UTF-8 data' '
printf "\\200\\n" >invalid-0x80 &&
echo "ævar" >expected &&
cat expected >>invalid-0x80 &&
git add invalid-0x80
'
test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: grep ASCII from invalid UTF-8 data' '
git grep -h "var" invalid-0x80 >actual &&
test_cmp expected actual &&
git grep -h "(*NO_JIT)var" invalid-0x80 >actual &&
test_cmp expected actual
'
test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: grep non-ASCII from invalid UTF-8 data' '
git grep -h "æ" invalid-0x80 >actual &&
test_cmp expected actual &&
git grep -h "(*NO_JIT)æ" invalid-0x80 &&
test_cmp expected actual
'
test_expect_success GETTEXT_LOCALE,LIBPCRE2 'PCRE v2: grep non-ASCII from invalid UTF-8 data with -i' '
test_might_fail git grep -hi "Æ" invalid-0x80 >actual &&
test_cmp expected actual &&
test_must_fail git grep -hi "(*NO_JIT)Æ" invalid-0x80 &&
test_cmp expected actual
'
test_done