Ragulf,
Take a look at http://www.aspectxml.org which in a nutshell is a combination of
Aspect-Oriented Software Development and XML/XSLT. By taking an instance
document and comparing it to a definition document it then looks to a third
document to determine if an element or attribute should be woven before,
in-place of (around), or after an element or attribute defined in the
originating document. Think of it as a kind of "floating" schema that can adapt
to any particular situation and define the final output (and whether that final
output is valid) accordingly.
Best of luck!
<M:D/>
Ragulf Pickaxe wrote:
Hi again David (and others),
The input and some of my problem should be in my earlier post "Matching
attributes in two documents", but I have tried rewriting it a little to
match this particular problem.
If some or all of this is not understandable, please tell me, and I will
try to elaborate.
Doc1.xml
<Input>
<I q="input value" s="Invalid attribute">Input</I>
</Input>
Doc2.xml
<A>
<B q="default" r="default">Text1</B>
</A>
Desired output:
<Output q="input value" r="default">Some text in the output
element</Output>
Output that I get:
<Output q="default" r="default">Some text in the output element</Output>
If the attribute exists in both Doc1 and Doc2, then I want the value of
Doc1 (input value). If it exists only in Doc1, then it should be ignored
(invalid attribute), and if only in Doc2, then I want the value of Doc2
(default)
XSL snippets (for the non-desired output):
<!-- Global variables -->
<xsl:variable name="Doc1" select="document('Doc1.xml')/Input/I"/>
<xsl:variable name="Doc2" select="document('Doc2.xml')/A/B"/>
<!-- Template for processing -->
<xsl:template name="MakeOutput">
<xsl:variable name="Attr1" select="$Doc1/@*"/>
<xsl:variable name="Attr2" select="$Doc2/@*"/>
<Output>
<xsl:for-each select="$Attr2">
<xsl:variable name="Attr" select="."/>
<xsl:if test="not($Attr1)">
<xsl:attribute name="{name($Attr)}"><xsl:value-of
select="$Attr"/></xsl:attribute>
</xsl:if>
<xsl:for-each select="$Attr1[name()=name($Attr)]">
<xsl:choose>
<xsl:when test="name()=name($Attr)">
<xsl:attribute name="{name(.)}"><xsl:value-of
select="."/></xsl:attribute>
</xsl:when>
<xsl:otherwise>
<xsl:attribute name="{name($Attr)}"><xsl:value-of
select="$Attr"/></xsl:attribute>
</xsl:otherwise>
</xsl:choose>
</xsl:for-each>
</xsl:for-each>
Some text in the output element
</Output>
</xsl:template>
Regards,
Ragulf Pickaxe :-)
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