2718 2006-01-15 19:30:06 +0000 Non-capturing sub-expressions 2006-11-16 18:52:16 +0000 1 1 1 Unclassified XPath / XQuery / XSLT Functions and Operators 1.0 Last Call drafts PC Windows XP CLOSED INVALID P2 normal --- 1 ashok.malhotra ashok.malhotra bjoern public-qt-comments oldest_to_newest 7849 0 ashok.malhotra 2006-01-15 19:30:06 +0000 http://www.w3.org/TR/2005/CR-xpath-functions-20051103/ extends the semantics of the regular expressions defined in XML Schema 1.0 to allow for capture buffers; I would like to re-use regular expressions as de- fined in the candidate recommendation in a DTLL-like format, but an imporant requirement is automatic assignment of names for the captured substrings based on the index number of the parenthesized sub-expression as defined in the technical report. This is not feasible however with the current syntax as it does not allow non-capturing sub-expressions, so I would have to further extend the format which makes sharing of regular expressions and regex engines difficult. In fact, in order to re-use regular expressions as found on many web sites and programs, and as produced by many tools, one would first have to re-write them to fit into this model. I thus think the regular expression syntax should further be extended to allow for non-capturing sub-expressions using a syntax like (?:...) as is available in most other regular expression formats. regards, -- Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de Weinh. Str. 22 · Telefon: +49(0)621/4309674 · http://www.bjoernsworld.de 68309 Mannheim · PGP Pub. KeyID: 0xA4357E78 · http://www.websitedev.de/ 7888 1 ashok.malhotra 2006-01-20 16:20:57 +0000 Created in wrong bucket. Closing here and opening in CR comments.