Re: [cp-patches] RFC: gnu.regexp fix to allow "([(])"

[Mark Wielaard]

Hi Ito,

On Thu, 2006-01-19 at 01:12 +0900, Ito Kazumitsu wrote:
> Well, perl accepts "[[]" and "[^[]" as valid regular expressions.
> But Sun's JDK does not.
> 
> java.util.regex.PatternSyntaxException: Unclosed character class near index 4
> ([[])
>     ^
> Sun's JDK accepts such expressions as "[abc[xyz]]" and "[a-z&&[^p-r]]",
> and as a result of supporting such nested character classes, traditional
> expression "[[]" and "[^]]" are no longer supported, I guess.

Aha! Thanks for your explanation. That makes sense. I wrote these mauve
tests testing against perl. So that explains it. We should document this
and remove these particular tests from mauve.

Cheers,

Mark

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