[Mono-list] Re gular expression inconsistency between Mono 2.4 and .Net

[Rodrigo Kumpera]

Please file a bug report on this.

On Thu, Apr 9, 2009 at 7:23 PM, holyfuzz <walt at waltdestler.com> wrote:

>
> I am having a problem where my regular expression is not properly matching
> a
> string in Mono 2.4 but *is* properly matching the string in .Net.
> Interestingly, this particular case worked fine in Mono 2.2, but not 2.0 or
> 2.4.
>
> Here is my regular expression:
> Regex re = new
>
> Regex(@"^\s*&?\s*([a-zA-Z0-9_-_]+|/|\^|~|\.|\.\.|\<(.*)\>|#)?\s*(/\s*([a-zA-Z0-9_-_]+|\^|\.\.|#)\s*)*/?\s*$");
>
> And the string I am trying to match is:
> ../../Col1
>
> To determine whether the string matches, I use the following code:
> Match m = re.Match(path);
> if(m.Success){do stuff}
>
> Since my regular expression is pretty complicated, I'll try to explain it
> in
> English:
>
> 1) The string may optionally start with an ampersand: &
> 2) There is then a series of one or more forward-slash-separated
> sequences...
> 3) Any sequence may be one of the following:
> 3a) A word containing letters, digits, or underscores.
> 3b) An up caret: ^
> 3c) Two dots: ..
> 3d) A pound symbol: #
> 4) The very first sequence may in addition be the following:
> 4a) A forward-slash: /
> 4b) A tilde: ~
> 4c) A single dot: .
> 4d) Any string of characters enclosed by <> brackets.
> 5) The string may optionally end with a forward-slash: /
>
> Thus my RE should, in theory, match my string
> ../../Col1
> but on Mono 2.0 and 2.4 it does not, while on 2.2 and .Net it works fine.
>
> Is this a bug in Mono, or is there something wrong with my RE? In either
> case, is there a way I can fix my RE so that it works?
>
> Thanks!
> --
> View this message in context:
> http://www.nabble.com/Regular-expression-inconsistency-between-Mono-2.4-and-.Net-tp22980228p22980228.html
> Sent from the Mono - General mailing list archive at Nabble.com.
>
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