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| author | Peter Stephenson <pws@zsh.org> | 2014-09-08 16:38:51 +0100 |
|---|---|---|
| committer | Peter Stephenson <pws@zsh.org> | 2014-09-08 16:38:51 +0100 |
| commit | 8bf3595e3a05f0cea7f12c463a0df09e4010cd1c (patch) | |
| tree | 1dd75aa5b3921cee250da7c2db2d2b91dbf939ca /Src | |
| parent | 956829c18e8ade666083f1c69043a16a80f70b0d (diff) | |
| download | zsh-8bf3595e3a05f0cea7f12c463a0df09e4010cd1c.tar.gz zsh-8bf3595e3a05f0cea7f12c463a0df09e4010cd1c.tar.xz zsh-8bf3595e3a05f0cea7f12c463a0df09e4010cd1c.zip | |
users/19059 based on users/19058: remove ineffiency with multiple * matches
Diffstat (limited to 'Src')
| -rw-r--r-- | Src/pattern.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Src/pattern.c b/Src/pattern.c index 94a299ebb..df5e602ca 100644 --- a/Src/pattern.c +++ b/Src/pattern.c @@ -3012,6 +3012,16 @@ patmatch(Upat prog) break; case P_STAR: /* Handle specially for speed, although really P_ONEHASH+P_ANY */ + while (P_OP(next) == P_STAR) { + /* + * If there's another * following we can optimise it + * out. Chains of *'s can give pathologically bad + * performance. + */ + scan = next; + next = PATNEXT(scan); + } + /*FALLTHROUGH*/ case P_ONEHASH: case P_TWOHASH: /* |