[Squeak-fr] Fwd: [Pharo-project] Fwd: nice bug with regex

[stephane ducasse]

vic voila la reponse
Bientot dans pharo 1.1

Begin forwarded message:

> From: Lukas Renggli <renggli at gmail.com>
> Date: November 4, 2009 10:46:35 PM GMT+01:00
> To: Pharo-project at lists.gforge.inria.fr
> Subject: Re: [Pharo-project] Fwd: nice bug with regex
> Reply-To: Pharo-project at lists.gforge.inria.fr
>
> I committed VB-Regex-lr.34 to the PharoInbox that fixes this issue.
>
> In fact, this is a completely new port of VB-Regex with numerous
> bug-fixes and enhancements. The bug you found was fixed in version
> 1.1c in December 2004. The version 1.1 we used up to now was from
> October 1999.
>
> The detailed log of changes from Vassily you can see below.
>
> Cheers,
> Lukas
>
> Name: VB-Regex-lr.34
> Author: lr
> Time: 4 November 2009, 10:40:27 pm
> UUID: 9254d5aa-3e22-4e3b-83aa-2d633ff05570
> Ancestors: VB-Regex-StephaneDucasse.33
>
> VERSION 1.2.3 (November 2007)
>
> 1. Regexs with ^ or $ applied to copy empty strings caused infinite
> loops, e.g. ('' copyWithRegex: '^.*$' matchesReplacedWith: 'foo').
> Applied a similar correction to that from version 1.1c, to
> #copyStream:to:(replacingMatchesWith:|translatingMatchesUsing:).
> 2. Extended RxParser testing to run each test for
> #copy:translatingMatchesUsing: as well as #search:.
> 3. Corrected #testSuite test that a dot does not match a null, which
> was passing by luck with Smalltalk code in a literal array.
> 4. Added test to end of test suite for fix 1 above.
>
> VERSION 1.2.2 (November 2006)
>
> There was no way to specify a backslash in a character set. Now [\\]
> is accepted.
>
> VERSION 1.2.1	(August 2006)
>
> 1. Support for returning all ranges (startIndex to: stopIndex)
> matching a regex - #allRangesOfRegexMatches:, #matchingRangesIn:
> 2. Added hint to usage documentation on how to get more information
> about matches when enumerating
> 3. Syntax description of dot corrected: matches anything but NUL  
> since 1.1a
>
> VERSION 1.2	(May 2006)
>
> Fixed case-insensitive search for character sets.
>
> VERSION 1.1c	(December 2004)
>
> Fixed the issue with #matchesOnStream:do: which caused infinite loops
> for matches
> that matched empty strings.
>
> VERSION 1.1b	(November 2001)
>
> Changes valueNowOrOnUnwindDo: to ensure:, plus incorporates some  
> earlier fixes.
>
> VERSION 1.1a	(May 2001)
>
> 1. Support for keeping track of multiple subexpressions.
> 2. Dot (.) matches anything but NUL character, as it should per  
> POSIX spec.
> 3. Some bug fixes.
>
>
>
> 2009/11/4 Stéphane Ducasse <stephane.ducasse at inria.fr>:
>>> l := '1ère partie\nmilieu\nfin'.
>>> '.*' asRegex matchesIn l.
>>
>> -> infinite and freezing loop.
>>
>> Stef
>>
>>
>>
>>
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>>
>
>
>
> -- 
> Lukas Renggli
> http://www.lukas-renggli.ch
>
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