util._matcher: speed up regexp matching.
In 4babaa52badf, Benoit made a change that substantially slows matching
when a big .hgignore file is in play, because it calls into the regexp
matching engine potentially hundreds of times per file to be matched.
I've partly rolled back his change, so that we only call into the matcher
once per file, but preserved the ability to report a meaningful error
message if there's a syntax error in the regexp.
changeset: 0:cabd88b706fc
tag: tip
user: test
date: Thu Jan 01 00:00:00 1970 +0000
files: dangling
description:
add symlink
2564acbe54bbbedfbf608479340b359f04597f80 644 dangling
% rev 0:
dangling -> nothing
% rev 1:
dangling -> void
% modifying link
dangling -> empty
% reverting to rev 0:
reverting dangling
dangling -> nothing
% backups:
dangling.orig -> empty
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
% copies
copying dangling to dangling2
A dangling2
dangling
dangling -> void
dangling2 -> void