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Re: [mile] [Issue #2] Better citation to RecordPattern@type=regex

Jerome Athias <athiasjerome@gmail.com> Mon, 29 July 2013 10:38 UTC

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Date: Mon, 29 Jul 2013 12:38:05 +0200
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From: Jerome Athias <athiasjerome@gmail.com>
To: "Roman D. Danyliw" <rdd@cert.org>
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Subject: Re: [mile] [Issue #2] Better citation to RecordPattern@type=regex
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Hi,

I would say PCRE

Best regards


2013/7/29 Roman D. Danyliw <rdd@cert.org>

> Per, http://trac.tools.ietf.org/wg/mile/trac/ticket/2
>
> RecordPattern@type="regex" is currently cited as Appendix F of
>
>    [3]   World Wide Web Consortium, "XML Schema Part 2: Datatypes Second
>          Edition", W3C Recommendation , October 2004,
>          <http://www.w3.org/TR/xmlschema-2/>.
>
> Third hand feedback received from an implementer is that the W3C
> definition of regular expressions isn't sufficiently expressive.  For
> background, a comparison of features differences across regex
> implementations is summarized at
> http://www.regular-expressions.info/refflavors.html.
>
> Do others implementers agree that the XML Schema citation should not be
> used?  If so, which definition would you like to use instead?  POSIX ERE
> (1003.2)? PERL 5? PCRE? Python?
>
> Roman
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