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diffcore-pickaxe: support case insensitive match on non-ascii 

Similar to the "grep -F -i" case, we can't use kws on icase search
outside ascii range, so we quote the string and pass it to regcomp as
a basic regexp and let regex engine deal with case sensitivity.

The new test is put in t7812 instead of t4209-log-pickaxe because
lib-gettext.sh might cause problems elsewhere, probably.

Noticed-by: Plamen Totev <plamen.totev@abv.bg>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
maint
Nguyễn Thái Ngọc Duy 2016-06-25 07:22:37 +02:00 committed by Junio C Hamano
parent 3d5b23a362
commit b51a9c1479
2 changed files with 18 additions and 0 deletions
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11
diffcore-pickaxe.c
View File

@ -7,6 +7,8 @@
#include "diffcore.h"
#include "xdiff-interface.h"
#include "kwset.h"
#include "commit.h"
#include "quote.h"

typedef int (*pickaxe_fn)(mmfile_t *one, mmfile_t *two,
struct diff_options *o,
@ -223,6 +225,15 @@ void diffcore_pickaxe(struct diff_options *o)
cflags |= REG_ICASE;
regcomp_or_die(&regex, needle, cflags);
regexp = &regex;
} else if (DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE) &&
has_non_ascii(needle)) {
struct strbuf sb = STRBUF_INIT;
int cflags = REG_NEWLINE | REG_ICASE;

basic_regex_quote_buf(&sb, needle);
regcomp_or_die(&regex, sb.buf, cflags);
strbuf_release(&sb);
regexp = &regex;
} else {
kws = kwsalloc(DIFF_OPT_TST(o, PICKAXE_IGNORE_CASE)
? tolower_trans_tbl : NULL);

7
t/t7812-grep-icase-non-ascii.sh
View File

@ -61,4 +61,11 @@ test_expect_success REGEX_LOCALE 'grep string with regex, with -F' '
test_cmp expect2 debug2
'

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_done