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@xxxxxxxxx>
---
t/t3070-wildmatch.sh | 8 ++++++++
wildmatch.c | 12 ++++++++++++
2 files changed, 20 insertions(+)
diff --git a/t/t3070-wildmatch.sh b/t/t3070-wildmatch.sh
index 5c9601a..97f1daf 100755
--- a/t/t3070-wildmatch.sh
+++ b/t/t3070-wildmatch.sh
@@ -203,6 +203,10 @@ match 1 1 'XXX/adobe/courier/bold/o/normal//12/120/75/75/m/70/iso8859/1' 'XXX/*/
match 0 0 'XXX/adobe/courier/bold/o/normal//12/120/75/75/X/70/iso8859/1' 'XXX/*/*/*/*/*/*/12/*/*/*/m/*/*/*'
match 1 0 'abcd/abcdefg/abcdefghijk/abcdefghijklmnop.txt' '**/*a*b*g*n*t'
match 0 0 'abcd/abcdefg/abcdefghijk/abcdefghijklmnop.txtz' '**/*a*b*g*n*t'
+match 0 x foo '*/*/*'
+match 0 x foo/bar '*/*/*'
+match 1 x foo/bba/arr '*/*/*'
+match 0 x foo/bb/aa/rr '*/*/*'
pathmatch 1 foo foo
pathmatch 0 foo fo
@@ -218,5 +222,9 @@ pathmatch 0 foo/bba/arr 'foo/*z'
pathmatch 0 foo/bba/arr 'foo/**z'
pathmatch 1 foo/bar 'foo?bar'
pathmatch 1 foo/bar 'foo[/]bar'
+pathmatch 0 foo '*/*/*'
+pathmatch 0 foo/bar '*/*/*'
+pathmatch 1 foo/bba/arr '*/*/*'
+pathmatch 1 foo/bb/aa/rr '*/*/*'
test_done
diff --git a/wildmatch.c b/wildmatch.c
index 536470b..bb42522 100644
--- a/wildmatch.c
+++ b/wildmatch.c
@@ -117,6 +117,18 @@ static int dowild(const uchar *p, const uchar *text, unsigned int flags)
return WM_NOMATCH;
}
return WM_MATCH;
+ } else if (!match_slash && *p == '/') {
+ /*
+ * _one_ asterisk followed by a slash
+ * with WM_PATHNAME matches the next
+ * directory
+ */
+ const char *slash = strchr((char*)text, '/');
+ if (!slash)
+ return WM_NOMATCH;
+ text = (const uchar*)slash;
+ /* the slash is consumed by the top-level for loop */
+ break;
}
while (1) {
if (t_ch == '\0')
--
1.8.0.rc2.23.g1fb49df
--
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