Re: Need Set-like Regex for Perl and Java (golf OK)

You don't have to be especially clever to write something maintainable and cross-platform. If you remove the white-space you can probably use this in Java or POSIX or whatever regex engine you care.

/   A000
|   A1[01][0-9]
|   A12[0-3]
|   A[23][0-9]{2}
|   A4[0-4][0-9]
|   A45[0-9]
|   A999
|   B000
|   B789
|   B79[0-9]
|   B8[0-7][0-9]
|   B88[0-8]
/x
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Comment on Re: Need Set-like Regex for Perl and Java (golf OK) Download Code

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Re^2: Need Set-like Regex for Perl and Java (golf OK) by halley (Prior) on Jun 09, 2004 at 17:18 UTC
If this were a Perl-only solution, or if the regex rarely changed, I would code it with a simple naive list, and then pass it once through Regex::Presuf for a little more efficiency. That module then figures out what common prefixes or suffixes can be coded more cleverly. -- `[ e d @ h a l l e y . c c ]`	[reply]
Re^3: Need Set-like Regex for Perl and Java (golf OK) by diotalevi (Canon) on Jun 09, 2004 at 17:26 UTC
Oh that's an even better idea. I did that module's work manually to come up with that regex.	[reply]