Re: Alternative Syntax for Regular Expressions?

On 10 Oct 2001 15:52:13 -0400, "Jon Forrest" <forrest@ce.berkeley.edu>
wrote:


>I've been looking at some pretty hairy regular expressions (in Perl)
>recently that are virtually unreadable. The thought crossed my mind
>that maybe there are some alternatives to classic regular expression
>syntax out there. Note that I'm only talking about the syntax - it's
>hard to beat the semantics of regular expressions.
>
>Does anybody know of anything?


1. GNAT.Spitbol (a full implementation of SNOBOL4 patterns in Ada 95):


You can find it in a distribution of the GNAT Ada 95 compiler (it is
freeware). This is a standard part of the GNAT Ada library.


2. Snobol-like patterns (C, C++, Ada 95 interfaces):


http://www.dmitry-kazakov.de/match/match.htm


SNOBOL patterns are extermely powerful. One can build a pattern that
matches syntactically correct programs and rejects others.


Regards,
Dmitry Kazakov

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