[Glass] Regex to match a UUID -- Bug?

[Dale Henrichs]

Hello Ralph ...

The Regex should be compatible with Pharo, but at this point in time, I 
think we need to start thinking about the fact that "matching Pharo" has 
to be qualified by version ... the original code was written to "match 
Pharo" at the time ...

I'd be interested in hearing opinions from other folks ...

I assume that if the new test case can be handled correctly without 
causing existing tests to fail, then it's a no-brainer to include the 
fix. If fixing this case breaks other cases, then I would think it might 
need to be implemented in such a way that users can choose theold 
implementation or the new implementation ...

If I'm not mistaken, Pharo might be moving to "match Perl" so this might 
be another factor to consider ...

Dale

On 2/4/19 2:09 PM, Ralph Mauersberger via Glass wrote:
> Hello everyone,
>
> running on GS 3.4.3 (with image built from extent0.seaside.dbf), I 
> tried to build a Regex pattern to match an UUID.
>
> Unfortunately the following expression evaluates to false:
>
> '[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{4}-[a-fA-F0-9]{12}' 
> asRegex matches: '964d5d07-1834-0d00-a106-47ae08909eb2'
>
> The same code evaluates to true in Pharo. It seems that the handling 
> of the quantifiers in braces doesn't work as expected.
>
> All Tests (nearly 200) in Regex-Tests-Core Package are passing, but I 
> did not see any similar test case with quantifiers.
>
> Could this be considered as a bug or is there something wrong with the 
> pattern?
>
> Should the Regex-Package in Pharo and GemStone be/behave the same?
>
> Br,
>
> Ralph
>
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