From: Ezra Zygmuntowicz <ezmobius@...>
Date: 2008-09-23T07:12:51+09:00
Subject: Re: short regexp question


On Sep 22, 2008, at 8:10 AM, Robert Klemme wrote:

> 2008/9/22 Tod Beardsley <todb@planb-security.net>:
>> Anyway, I think the moral of this particular long-missing story is,  
>> if
>> you can regex test for smaller anchors first, you can then fail to
>> match much faster. IOW:
>>
>> matched =false
>> if str.match(/b/)
>> matched = true if str.match(/a[^b]*b/)
>> end
>> matched
>
> I am not sure.  This approach is likely slower than a single fast RX -
> at least if you expect matches most of the time.  It all depends...


	Also keep in mind that =~ is generally a lot faster then .match since  
match has to build the full MatchData object even if you do not use it.

Cheers-
-Ezra