Re: [xsl] XML schema: require a descendant?

Subject: Re: [xsl] XML schema: require a descendant?
From: "Wendell Piez wapiez@xxxxxxxxxxxxxxx" <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx>
Date: Sat, 8 Jul 2017 17:40:14 -0000
Hey Chuck,

Another route to XPath-based validation -- wherein you could implement
a rule for your entry that at least one 'sense' child has
some-child-or-other -- would be embedding Schematron in your schema --
or maintaining an extra-schema constraint layer (in the form of a
Schematron) -- and then doing it there.

You can embed Schematron into RNG or XSD given support from tools
(such as oXygen). But you might start with an external Schematron - or
you could go full-bore TEI and do it in an ODD ...

Cheers, Wendell


On Sun, Jul 2, 2017 at 5:05 AM, Wolfgang Laun wolfgang.laun@xxxxxxxxx
<xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
> XML Schema 1.1 has XPath evaluation and validation. Your constraint can be
> easily expressed as the existence of at least one <sense> with at least one
> child element for an <entry>.
>
> -W
>
> On 2 July 2017 at 10:01, Charles Muller acmuller@xxxxxxxxxxxxxxx
> <xsl-list-service@xxxxxxxxxxxxxxxxxxxxxx> wrote:
>>
>> I guess this might be a bit off-topic for an XSLT list, but in any case
>> it's related to XPath.
>>
>> In my data (simplified here):
>>
>> <entry>
>>   <sense>
>>   <sense>
>>   <sense>
>> </entry>
>>
>> I want at least *one* of the <sense> nodes to contain <term>, <persName>,
>> or <title>. But it only needs to be in one of them, thus <entry> needs at
>> least one descendant from the above three tags.
>>
>> Is there a way of writing this into a DTD or schema?
>>
>> Chuck
>>
>>
>> ---------------------------
>> A. Charles Muller
>>
>> Graduate School of Humanities and Sociology
>> Faculty of Letters
>> University of Tokyo
>> 7-3-1 HongE
, BunkyE
-ku
>> Tokyo 113-8654, Japan
>>
>> Office Phone: 03-5841-3735
>>
>> Web Site: Resources for East Asian Language and Thought
>> http://www.acmuller.net
>>
>> Twitter: @H_Buddhism
>>
>
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--
Wendell Piez | http://www.wendellpiez.com
XML | XSLT | electronic publishing
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