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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: Building Matreshka on Windows
Date: Fri, 04 Nov 2016 08:55:48 +0000
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Date: 2016-11-04T08:55:48+00:00
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"G.B." <bauhaus@futureapps.invalid> writes:

> 1 - why would compiler writers parse version strings using
>     REs that can fail in ways that I'd be tempted to call
>      classic when their core business actually depends on
>     well working parsers?

The input formats to be processed by this RE are very limited, and under
AdaCore's control:

   (whatever GNAT Pro reports)
   GNATLS GPL 2016 (20160515-49)
   GNATLS 4.8.1

and it's not as though the RE processing is done by shelling out to run
grep (you can tell this because gprconfig runs on Windows).