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Re: Newbie question: MPEG7,XSV,Xerces

From: Jeff Rafter <jeffrafter@definedweb.com>
Date: Fri, 15 Jun 2001 07:23:10 -0700
Message-ID: <00a501c0f5a6$b53353b0$f181fea9@lazarus>
To: "Horti, Andras" <andras.horti@joanneum.at>
Cc: <xmlschema-dev@w3.org>
Andras,

I will try to answer one of these:

> 1. Cannot understand the line <pattern
>
value="(/|//|\.|\.\.|([\i-[:]][\c-[:]]*))(\[\d\])?)+(@[\i-[:]][\c-[:]]*)?"/>
> . Actually '\i' and '\c' are not valid regular expression tags, or are
they
> ?

They are valid.  See Appendix F in the Datatypes document [1].  These are in
a group called multi-character escapes. (Right near the end of Appendix F).
\i represents initial name charcters as defined by XML 1.0 second edition
and \c represents name characters.

BTW simpleType conformance isn't complete in XSV.  SO this pattern may not
be checked-- though Henry could give a more definitive answer.

[1] http://www.w3.org/TR/xmlschema-2/#regexs

Good Luck,
Jeff Rafter
Defined Systems
http://www.defined.net
XML Development and Developer Web Hosting
Received on Friday, 15 June 2001 10:23:28 GMT

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