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Re: [xml-dev] RELAX NG equivalent of <xsd:any processContents="lax">?

Hello Jeff,

Try using <except> with <anyName> to eliminate the elements for which you want to provide definitions and avoid ambiguity and conflicts. This way you can tell the processor "don't bother with any of these, except the ones for which I have provided definitions". This is lax.

Radu Cernuta

2007/2/6, Jeff Lowery <jlowery@myrio.com>:

Compact syntax:


start = anyElement

anyElement =

  element * {

    (attribute * { text }

     | text

     | anyElement)*



This validates an element of any name with an attribute of any name with content of same.  I'm no RNG expert, but I've tried this and one problem is that this definition conflicts with element definitions already defined that have ID/IDREF's (I get an error when parsing with Jing).  I don't have time right now to give a complete example, but I'm thinking (perhaps wrongly) that the above definition will not restrict content for those elements already defined, so it's more like processContent="skip" than "lax".


From: Radu Cernuta [mailto:radu.cernuta@gmail.com]
Sent: Tuesday, February 06, 2007 3:50 AM
To: Jeff Lowery
Cc: xml-dev@lists.xml.org
Subject: Re: [xml-dev] RELAX NG equivalent of <xsd:any processContents="lax">?


For lax validation in RELAX NG you could take a look at the RELAX NG Tutorial by James Clark and Murata Makoto. Section 11 (Name Classes) handles this issue.



Radu Cernuta

2007/2/6, Jeff Lowery <jlowery@myrio.com >:

This has got to be a FAQ, but no luck with googling:

Trying to find a shorthand method to validate content using lax
constraints in RELAX NG.  I want something like this:

namespace foo = "http://www.w3.org/foo"

qux =
    element baz {empty}     # some element

bar =
    element bar { anyLax* }  #allow baz, bar, anyOtherElement

anyOtherElement =
  element * - foo:*  {        # any elements not in this namespace
    attribute * { text }*,
     | anyOtherElement)*

anyLax = (
        grammar {*}             #all patterns


Don't work, though.

Only examples I've seen enumerate all the grammars by name in the
schema. Doesn't appear there is wildcard of that type.


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Scanned on 06 Feb 2007 11:50:20

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