[tei-council] Two quick questions about Schematron constraints

[Sebastian Rahtz]

On 15 Jun 2012, at 19:46, Martin Holmes wrote:

> 
> In this constraint (from delSpan):
> 
>   <constraintSpec ident="spanTo" scheme="isoschematron">
>     <constraint>
>       <assert xmlns="http://purl.oclc.org/dsdl/schematron" 
> test="@spanTo">The spanTo= attribute of <name/> is required.</assert>
>     </constraint>
>   </constraintSpec>
> 
> does <name/> automatically get replaced by ancestor::elementSpec/@ident? 

<name/> is the name of the element which the constraint matches. so no,
not that @ident, but the name() of the matching element. Similar, but
not the same.

> What happens in the case of constraints on attributes? There appears to 
> be only one (on @targetLang in att.pointing), but if <name/> were used 
> there, would it be replaced with @targetLang, or with the ancestor's 
> @ident (att.pointing)?
@targetLang

the replacement of <name/> is done in Schematron, not in ODD processing


> Secondly, these constraints appear on the root TEI element:
> 
>   <constraintSpec ident="c1" scheme="isoschematron">
>     <constraint>
>       <ns xmlns="http://purl.oclc.org/dsdl/schematron" prefix="tei" 
> uri="http://www.tei-c.org/ns/1.0"/>
>     </constraint>
>   </constraintSpec>
>   <constraintSpec ident="c2" scheme="isoschematron">
>     <constraint>
>       <ns xmlns="http://purl.oclc.org/dsdl/schematron" prefix="rng" 
> uri="http://relaxng.org/ns/structure/1.0"/>
>     </constraint>
>   </constraintSpec>
> 
> What are they actually doing, if anything?


declaring namespace prefixes. It is a pain having to do this, but its needed.
--
Sebastian Rahtz      
Head of Information and Support Group
Oxford University Computing Services
13 Banbury Road, Oxford OX2 6NN. Phone +44 1865 283431