[HTTPS-E Rulesets] Uncpaturing patterns

[Osama Khalid]

On Tue, Sep 27, 2011 at 01:07:17PM -0700, Peter Eckersley wrote:
> What does an "uncapturing pattern" do?  What are the benefits of
> using them?

Brackets create a "backreference" for the matched characters. If that
reference is not going to be used, it's (said to be) good for
performance to use a non-capturing brackets. This can be done by using
"(?:)" instead of "()".

http://www.regular-expressions.info/brackets.html

--Osama Khalid
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