[patch] syntax:plain for .hgignore

[Guido Ostkamp]

On Fri, 14 Sep 2007, Johannes Hofmann wrote:
> Just realized, that the culprit for the bad performance in our case is 
> the '.*' that is added in front of each pattern by regex() in util.py. 
> Using syntax:regexp and preceeding each fixed pattern with a '^' makes 
> things fast.

And I just noticed that in util.py they are using

    re.compile(pat).match

instead of

    re.compile(pat).search

What we know from our Perl stuff is the 'search' behaviour. The 'match' 
matches only from the beginning of a string, so acts like 
'^rest_of_regexp'.

In this case they need to add '.*' in front of regexp for globs so this 
gives '^.*rest_of_regexp' where a 'rest_of_regexp' with 'search' would be 
fully sufficient and is probably better in terms of performance.

I'm wondering why 'match' is used here. Maybe Matt can give some insight.

Regards

Guido