Re: [xml-dev] RELAX question re: required value

[George Cristian Bina <george@oxygenxml.com>]

Hi Mike,

Embedded Schematron works a lot easier if you use Relax NG with the XML 
syntax.

Best Regards,
George
--
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com

On 1/23/14, 5:27 PM, Michael Sokolov wrote:
> I found it a little tricky hunting down the proper syntax for this, so
> for posterity here is an example of a embedding a schematron assertion
> in Relax NG Compact:
>
>          [sch:pattern
>              [sch:rule [context="meta"
>                  sch:assert [ test="count(collection[.='all']) = 1"
>                      "all collection must be present"]]]]
>
>          element collection {
>              text
>          }+
>
> Thanks, John, for the pointer - this is exactly what I needed.
>
> -Mike
>
> OK so for posterity, in case any
> On 01/22/2014 02:14 PM, Michael Sokolov wrote:
> > I didn't know about the embedding of Schematron rules; sounds very
> > useful: thanks!
> >
> > -Mike
> >
> > On 01/22/2014 01:11 PM, John Cowan wrote:
> > > On Wed, Jan 22, 2014 at 11:30 AM, Michael Sokolov
> > > <msokolov@safaribooksonline.com
> > > <mailto:msokolov@safaribooksonline.com>> wrote:
> > >
> > >     I have a schema that allows a bunch of different elements to be
> > >     interleaved in any order; one of them is <collection>;  I want to
> > >     require that a collection with value "all" be present, as well as
> > >     allowing any number of other collections, in any order, using
> > >     RELAX -- is that possible?
> > >
> > > No, it isn't.  It would have to be element collection {"all"} &
> > > element collection {text}, and it is forbidden to have the same
> > > element name on both sides of &.  This is one of the few arbitrary
> > > restrictions in RNG.  Even that formulation, if it were legal, would
> > > allow more than one "all" collection, since there is no way to say
> > > "everything but 'all'" in RNG.
> > >
> > > However, this is a perfect application for an embedded Schematron
> > > rule asserting that count(collection[text() = "all"] = 1.  Jing
> > > supports embedded Schematron 1.5 rules quite nicely.
> > >
> > > --
> > > GMail doesn't have rotating .sigs, but you can see mine at
> > > http://www.ccil.org/~cowan/signatures
> > > <http://www.ccil.org/%7Ecowan/signatures>