Re: All teidata.pointer attributes

The relaxng corresponding to any odd can be generated by oxygen if you have the tei framework installed. Just choose the odd to relaxng transformation scenario. Alternatively, for several predefined odds, you can grab the relaxng from the tei website.
Look in the folder release/xml/tei/custom/schema/relaxng for example




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-------- Original message --------
From: "John P. McCaskey"
Date:2017/02/06 14:09 (GMT+00:00)
To: [email protected]
Subject: Re: All teidata.pointer attributes


I’m have a difficult time doing this with ODD.

How does one get the RNG? (I have Oxygen 18. Is it in there somewhere?)

--


On 2/5/2017 8:09 AM, Lou Burnard wrote:
Thanks Conal. I don't have any climactic excuse, but I realised just after my posting last night that this approach is only going to show the attributes which are directly declared in an element spec. But in fact most pointer-valued attributes get that way by being inherited from an attribute class. So something rather more complex is needed:  you need to look for elements which have a memberOf child that names an attribute class which supplies an pointer-valued attribute ... or which inherits from another class which does. Writing the xslt to do that is left as an exercise for the reader, since it's Sunday and I am cooking.


On 05/02/17 09:11, Conal Tuohy wrote:
Whoops I made a mistake in that message (I blame the Brisbane summer heat!)

The code I had inside the templates was wrong:

    <!-- wrong! -->
    <xsl:copy>
       <xsl:attribute name="haspointer">true</xsl:attribute>
       <xsl:copy-of select="@* | node()"/>
    </xsl:copy>

It should of course have applied templates to the children of the matched
elements:

    <xsl:copy>
       <xsl:attribute name="haspointer">true</xsl:attribute>
       <xsl:copy-of select="@*">
       <xsl:apply-templates/>
    </xsl:copy>

[turning the fan on now]

On 5 February 2017 at 19:07, Conal Tuohy <[email protected]><mailto:[email protected]> wrote:

Borrowing Lou's suggested XPath, let me suggest a couple of ways to deploy
it in XSLT:

If you are using XSLT 2.0 (or later), then you can record the list of
"pointer" elements' names in a global variable, and then define a template
which matches elements whose names appear in that list.

<xsl:variable name="pointer-element-names" select="
    document('http://www.tei-c.org/release/xml/tei/odd/p5subset.xml')
       //t:elementSpec[t:attList/t:attDef/t:datatype/t:dataRef/@
key='teidata.pointer']
       /@ident
"/>

<xsl:template match="*[local-name() = $pointer-element-names]">
    <!-- process the pointer element -->
    <xsl:copy>
       <xsl:attribute name="haspointer">true</xsl:attribute>
       <xsl:copy-of select="@* | node()"/>
    </xsl:copy>
</xsl:template>

That's likely to be the most efficient approach, because the "//" step is
expensive (traversing the entire ODD document), and storing the result in a
variable means you only perform this traversal once.

You can't do this in XSLT 1, though, because references to variables are
not allowed in template match expressions. You could, however, do something
like this:

<xsl:template match="*">
    <xsl:copy>
       <xsl:if test="local-name() = $pointer-element-names">
          <xsl:attribute name="haspointer">true</xsl:attribute>
       </xsl:if>
       <xsl:copy-of select="@* | node()"/>
    </xsl:copy>
</xsl:template>

Also in XSLT 1 you should be able to do without a variable, by including
the "document()" function call in the match expression, but performance
might not be very good (because of the "//" step, and also because some
older XSLT processors might not cache the result of the "document()"
function call).

<xsl:template match="
    *[
       local-name()=document('http://www.tei-c.org/release/xml/tei/
odd/p5subset.xml')
          //t:elementSpec[t:attList/t:attDef/t:datatype/t:dataRef/@
key='teidata.pointer']
          /@ident
    ]
">
    <xsl:copy>
       <xsl:attribute name="haspointer">true</xsl:attribute>
       <xsl:copy-of select="@* | node()"/>
    </xsl:copy>
</xsl:template>


On 5 February 2017 at 09:17, Lou Burnard <[email protected]><mailto:[email protected]>
wrote:

This information is not available from the document instance: you need to
look at the ODD from which the schema that validates the document instances
was generated.

If you're using a document that is valid against TEI all, this will list
all the elements concerned:

<xsl:template xmlns:t="http://www.tei-c.org/ns/1.0"<http://www.tei-c.org/ns/1.0>
<http://www.tei-c.org/ns/1.0><http://www.tei-c.org/ns/1.0> match="/">
    <xsl:for-each select="document('http://www.*tei*-c.org/release/*xml*/
*tei*/odd/*p5subset*.*xml*l')//t:elementSpec[
t:attList/t:attDef/t:datatype/t:dataRef/@key='teidata.pointer']">
        <xsl:message><xsl:value-of select='@ident'/></xsl:message>
    </xsl:for-each>


On 04/02/17 22:52, John P. McCaskey wrote:

Running an XSL transform against a TEI document, I want to match all TEI
elements that contain at least one teidata.pointer attribute.

I can’t match just on attribute name. In some elements @value is a
pointer, in others it’s text. Sometimes @class is a pointer, sometimes not.

Is there a master list of attributes that can be pointers and the
elements in which they are?

(Even better if the list is in a form that makes it easy to use in an XSL
match. Double extra better if you can show me the very XSLT that will copy
the element and add an attribute “haspointer=’true’”!)

Thanks!
John




--
Conal Tuohy
http://conaltuohy.com/
@conal_tuohy
+61-466-324297 <0466%20324%20297>