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2014-02-20stop using fnmatch (either native or compat)Libravatar Nguyễn Thái Ngọc Duy1-13/+0
Since v1.8.4 (about six months ago) wildmatch is used as default replacement for fnmatch. We have seen only one fix since so wildmatch probably has done a good job as fnmatch replacement. This concludes the fnmatch->wildmatch transition by no longer relying on fnmatch. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-06-02wildmatch: properly fold case everywhereLibravatar Anthony Ramine1-6/+49
Case folding is not done correctly when matching against the [:upper:] character class and uppercased character ranges (e.g. A-Z). Specifically, an uppercase letter fails to match against any of them when case folding is requested because plain characters in the pattern and the whole string are preemptively lowercased to handle the base case fast. That optimization is kept and ISLOWER() is used in the [:upper:] case when case folding is requested, while matching against a character range is retried with toupper() if the character was lowercase, as the bounds of the range itself cannot be modified (in a case-insensitive context, [A-_] is not equivalent to [a-_]). Signed-off-by: Anthony Ramine <n.oxyde@gmail.com> Reviewed-by: Duy Nguyen <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-01wildmatch: advance faster in <asterisk> + <literal> patternsLibravatar Nguyễn Thái Ngọc Duy1-0/+8
Normally when we match "*X" on "abcX", we call dowild("X", "abcX"), dowild("X", "bcX"), dowild("X", "cX") and dowild("X", "X"). Only the last call may have a chance of matching. By skipping the text before "X", we can eliminate the first three useless calls. compat, '*/*/*' on linux-2.6.git file list 2000 times, before: wildmatch 7s 985049us fnmatch 2s 735541us or 34.26% faster and after: wildmatch 4s 492549us fnmatch 0s 888263us or 19.77% slower Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-01wildmatch: make a special case for "*/" with FNM_PATHNAMELibravatar Nguyễn Thái Ngọc Duy1-0/+8
Normally we need recursion for "*". In this case we know that it matches everything until "/" so we can skip the recursion. glibc, '*/*/*' on linux-2.6.git file list 2000 times before: wildmatch 8s 74513us fnmatch 1s 97042us or 13.59% faster after: wildmatch 3s 521862us fnmatch 3s 488616us or 99.06% slower Same test with compat/fnmatch: wildmatch 8s 110763us fnmatch 2s 980845us or 36.75% faster wildmatch 3s 522156us fnmatch 1s 544487us or 43.85% slower Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-01wildmatch: support "no FNM_PATHNAME" modeLibravatar Nguyễn Thái Ngọc Duy1-0/+27
So far, wildmatch() has always honoured directory boundary and there was no way to turn it off. Make it behave more like fnmatch() by requiring all callers that want the FNM_PATHNAME behaviour to pass that in the equivalent flag WM_PATHNAME. Callers that do not specify WM_PATHNAME will get wildcards like ? and * in their patterns matched against '/', just like not passing FNM_PATHNAME to fnmatch(). Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2013-01-01wildmatch: fix "**" special caseLibravatar Nguyễn Thái Ngọc Duy1-1/+1
"**" is adjusted to only be effective when surrounded by slashes, in 40bbee0 (wildmatch: adjust "**" behavior - 2012-10-15). Except that the commit did it wrong: 1. when it checks for "the preceding slash unless ** is at the beginning", it compares to wrong pointer. It should have compared to the beginning of the pattern, not the text. 2. prev_p points to the character before "**", not the first "*". The correct comparison must be "prev_p < pattern" or "prev_p + 1 == pattern", not "prev_p == pattern". 3. The pattern must be surrounded by slashes unless it's at the beginning or the end of the pattern. We do two checks: one for the preceding slash and one the trailing slash. Both checks must be met. The use of "||" is wrong. This patch fixes all above. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-12-15t3070: Disable some failing fnmatch testsLibravatar Ramsay Jones1-3/+3
The failing tests make use of a POSIX character class, '[:xdigit:]' in this case, which some versions of the fnmatch() library function do not support. In the spirit of commit f1cf7b79 ("t3070: disable unreliable fnmatch tests", 15-10-2012), we disable the fnmatch() half of these tests. Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk> Acked-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-11-20test-wildmatch: avoid Windows path manglingLibravatar Nguyễn Thái Ngọc Duy1-5/+5
The MSYS bash mangles arguments that begin with a forward slash when they are passed to test-wildmatch. This causes tests to fail. Avoid mangling by prepending "XXX", which is removed by test-wildmatch before further processing. [J6t: reworded commit message] Reported-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Johannes Sixt <j6t@kdbg.org>
2012-10-15wildmatch: make /**/ match zero or more directoriesLibravatar Nguyễn Thái Ngọc Duy1-1/+7
"foo/**/bar" matches "foo/x/bar", "foo/x/y/bar"... but not "foo/bar". We make a special case, when foo/**/ is detected (and "foo/" part is already matched), try matching "bar" with the rest of the string. "Match one or more directories" semantics can be easily achieved using "foo/*/**/bar". This also makes "**/foo" match "foo" in addition to "x/foo", "x/y/foo".. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15wildmatch: adjust "**" behaviorLibravatar Nguyễn Thái Ngọc Duy1-2/+3
Standard wildmatch() sees consecutive asterisks as "*" that can also match slashes. But that may be hard to explain to users as "abc/**/def" can match "abcdef", "abcxyzdef", "abc/def", "abc/x/def", "abc/x/y/def"... This patch changes wildmatch so that users can do - "**/def" -> all paths ending with file/directory 'def' - "abc/**" - equivalent to "/abc/" - "abc/**/def" -> "abc/x/def", "abc/x/y/def"... - otherwise consider the pattern malformed if "**" is found Basically the magic of "**" only remains if it's wrapped around by slashes. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15t3070: disable unreliable fnmatch testsLibravatar Nguyễn Thái Ngọc Duy1-43/+43
These tests show different results on different fnmatch() versions. We don't want to test fnmatch here. We want to make sure wildmatch behavior matches fnmatch and that only makes sense in cases when fnmatch() behaves consistently. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2012-10-15Integrate wildmatch to gitLibravatar Nguyễn Thái Ngọc Duy1-0/+188
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>