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From "Stephen Colebourne" <>
Subject Re: [RT] Is a CL like wrapper for RE feasible?
Date Mon, 27 Sep 2004 09:37:02 GMT
This has been raised before.

The answer seems to be
1) the RE syntax varies
2) part of ORO already is (or is close to) the wrapper you describe


----- Original Message ----- 
From: "Alex Karasulu" <>
> I started looking at some code which uses both ORO and Regexp in various
> places.  Most of the code is targeted for 1.4 and up so there is a
> possibility for using 1.4 regular expressions as well.  Looking at the
> RE landscape and at the logging landscape one quickly asks, "is there
> room here for a commons-logging like wrapper but for regular expression
> implementations?"
> Is there a way to wrap RE implementations?  At a cursory glance I would
> guess so.  It wouldn't be that difficult to abstract away the interfaces
> the same way CL has for logging implementations.  
> However there seems to be a very subtle distinction to the
> logging-wrapper use case from what would be regex-wrapper usage.  A
> logging implementation is a choice.  Meaning any implementation can be
> used so long as it is supported by CL.  They all will work in the end. 
> This is not necessarily the case for a RE wrapper where some
> implementations may not support the same RE syntax.  So the
> implementation choice is somewhat restricted when the RE syntax is
> chosen.  Not every implementation is necessarily viable.
> Makes me wonder ... is this the reason why there is no commons-regex?
> Alex
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