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Date: Wed, 10 Jun 2009 23:10:17 +0100
Message-ID: <af54caaf0906101510w4fd7e2dl9fc9a2e45b64d4c7@mail.gmail.com>
To: Nuno Lopes <nlopess@php.net>
Cc: Guilherme Blanco <guilhermeblanco@gmail.com>, PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Last steps towards 5.3.0
From: paul.biggar@gmail.com (Paul Biggar)

Hi Guilherme, Nuno,

On Wed, Jun 10, 2009 at 9:38 PM, Nuno Lopes<nlopess@php.net> wrote:
>> PS: If someone wants to give a hand to find the regression... I can
>> explain how to reproduce.
>
> The easiest way is to use a tool to help reducing the test case
> automatically.
> I don't know about any specific tool for reducing PHP files, but in the past


I wrote a tool which automatically. It uses the delta debugging
algorithm, but is very much faster than delta, since it knows how PHP
works. I hope its also easier to use - you basically write a function
which takes source code, and returns true if the bug is still present.

Its at http://code.google.com/p/phc/source/browse/trunk/test/framework/reduce/Reduce.php.
You need to a copy of phc (phpcompiler.org) as well. The usage is
explained in the comments. I've used it a lot, but I've only just made
it work more generally. Please report any problems to me.


Paul


-- 
Paul Biggar
paul.biggar@gmail.com