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Re: [Chicken-users] two minor tweaks to runtime.c

From: Toby Thain
Subject: Re: [Chicken-users] two minor tweaks to runtime.c
Date: Wed, 28 Sep 2011 23:48:34 -0400
User-agent: Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv: Gecko/20110902 Thunderbird/3.1.14

On 28/09/11 11:33 PM, Alex Shinn wrote:
On Thu, Sep 29, 2011 at 12:25 PM, Alan Post<address@hidden>  wrote:

How did irregex, which by account is slower, replace the existing
regex code?

I didn't make the call, but as I understand that was motivated
by portability concerns, simplifying the Chicken distribution,
and avoiding the frequently occurring memory bugs in PCRE.

So speed wasn't a concern, but there is a class of regexps
for which irregex is exponentially faster than PCRE.

And if I am not mistaken this rationale is nicely given by Russ Cox:


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