Kazuko O. wrote:
I want to check whether topic id of dita file is equal to file name on the xxe.
(When we create a dita file based on the existing dita file, topic id is often
unchanged to
a new id.)
I tried the following schematron, but xxe does not support Xpath 2.0, or the
function
"document-uri".
<sch:pattern>
<sch:rule context="/*[1][contains(@class, 'topic/topic')]">
<sch:let name="reqId" value="replace(tokenize(document-uri(/), '/')[last()],
'\.dita', '')"/>
<sch:report test="@id = $reqId">
Topic ID must be equal to file name.
</sch:report>
</sch:rule>
</sch:pattern>
The attached schematron file, topic.sch:
---
<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron";
queryBinding="xslt">
<sch:pattern>
<sch:rule context="/*[not(self::dita)]">
<sch:let name="reqId"
value="replace(tokenize(property('{http://www.xmlmind.com/xmleditor/namespace/property}sourceURL',
/), '/')[last()], '\.dita', '')"/>
<sch:report test="@id != $reqId">
Topic ID must be equal to file name.
</sch:report>
</sch:rule>
</sch:pattern>
</sch:schema>
---
works fine in XXE provided that you declare in in
XXE_install_dir/addon/config/dita/topic.xxe or better, in a
customization of the DITA topic configuration of yours:
---
<schematron location="topic.sch" />
---
Notes about above schematron:
* queryBinding="xslt" is the default value of this attribute and is the
only value currently supported by XXE's native implementation of schematron.
* Your context="/*[1][contains(@class, 'topic/topic')]" cannot work in
XXE's native implementation of schematron as, for a DITA topic, the
value of the @class attribute is never set by hand. It always comes from
the default value declared in the schema.
* Our context="/*[not(self::dita)] will work for all kind of topics.
Root element <dita> specifies a file which contains a list of topics,
that is, a file which does not start with a topic. See
http://docs.oasis-open.org/dita/dita/v1.3/errata02/os/complete/part2-tech-content/langRef/base/dita.html#dita
* You wrote <sch:report test="@id = $reqId"> but it is either
<sch:assert test="@id = $reqId"> or <sch:report test="@id != $reqId">.
* replace(), tokenize() are very useful XPath 2 functions also supported
by XXE's native implementation of XPath 1. The equivalent of
document-uri(/)
isxmleditor-cli...@xmlmind.com <xmleditor-cli...@xmlmind.com>
property('{http://www.xmlmind.com/xmleditor/namespace/property}sourceURL',
/)
(Yes, as a syntax sugar, we could also have implemented XPath 2 function
document-uri().)
References:
* XPath functions, Extension functions.
https://www.xmlmind.com/xmleditor/_distrib/doc/xpathsupport/xpathextfunc.html
* Configuration elements, schematron.
https://www.xmlmind.com/xmleditor/_distrib/doc/configure/schematron.html
* Customizing an existing configuration,
https://www.xmlmind.com/xmleditor/_distrib/doc/configure/customizing.html
Will the xxe support Xpath 2.0 for the future? or
Sorry but no. This is currently not planned.
We could implement this if a major document type requires it. For
example, a future DITA 1.4 which would come with a standard schematron
in which queryBinding="xslt2".
Will the xxe implement the topic id checking function for the future?
Sorry but no, as this is really a business rules of yours.
The fact that several topics found in different files have the same ID
does not pose any technical problem. I've even seen DITA consultants
always set the id to fixed string "topic", provided that all their
topics are found in their own files.
<?xml version="1.0" encoding="utf-8"?>
<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron";
queryBinding="xslt">
<sch:pattern>
<sch:rule context="/*[not(self::dita)]">
<sch:let name="reqId"
value="replace(tokenize(property('{http://www.xmlmind.com/xmleditor/namespace/property}sourceURL', /), '/')[last()], '\.dita', '')"/>
<sch:report test="@id != $reqId">
Topic ID must be equal to file name.
</sch:report>
</sch:rule>
</sch:pattern>
</sch:schema>
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