Hi all,
I used <ref> to reference a predefined attribute in my Relax NG schema,
but I received this error from libxml2:
"Invalid attribute Title for element Book"
See below schema and xml snippets (notice the <ref name="TitleAttribute"/>
under "Book" element.
I did not get the same error if I directly specify the <attribute>
under "Book", i.e: without using <ref>.
Anyone know why this is the case or what I'm missing?
Any help/comment is very much appreciated.
Regards,
jatayu
=========== test.rng ====================
<?xml version="1.0" encoding="UTF-8"?>
<grammar xmlns="http://relaxng.org/ns/structure/1.0";
datatypeLibrary="http://www.w3.org/2001/XMLSchema-datatypes";>
<start>
<element name="Book">
<ref name="TitleAttribute"/> <!-- NOTE: I think using ref here
generates error. -->
<interleave>
<zeroOrMore>
<element name="Author">
<text/>
</element>
</zeroOrMore>
</interleave>
</element>
</start>
<define name="TitleAttribute">
<attribute name="Title">
<data type="token"/>
</attribute>
</define>
</grammar>
===============================================
=============== test.xml =========================
<Book Title="History101">
<Author>Joe Joe</Author>
<Author>Jill Jill</Author>
</Book>
================================================
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