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Re: FW: Stopping recursion

Subject: Re: FW: Stopping recursion
From: "Mark Seaborne" <mseaborne@xxxxxxxxxxxxxxxxx>
Date: Tue, 22 Nov 2005 11:52:17 +0000
recursion in xsd
Thanks, that is certainly an improvement on what I had. Now if more than one
child of a complex type has @namespace="xlink" I don't duplicate the
attribute declaration. However it doesn't always cure the problem if more
than one complex type referred to by descendants of a "parent" complex type
has the XLink namespace. Say the first complex type has no XLink namespace,
but references two more complex types. The elements of both these complex
types are checked in turn, and if they both have the XLink namespace I end
up with two attribute declarations.

> From: David Carlisle <davidc@xxxxxxxxx>
> Reply-To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Date: Tue, 22 Nov 2005 11:21:07 GMT
> To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
> Subject: Re:  FW: Stopping recursion
> I suspect it's not really the recursion you want to stop but the
> for-each. If any of these has the xlink then you want to output
> the attribute and stop.
> So don't loop over all of them, just check if any of them have the
> attribute:
> <xsl:choose>
> <xsl:when test="/xsd:schema/xsd:complexType[@name =
> $myType][.//@namespace='http://www.w3.org/1999/xlink]">
>             <xsd:attribute ref="xml:base"/>
> </xsl:when>
> <xsl:otherwise>
>   <xsl:apply-templates select="/xsd:schema/xsd:complexType[@name =
> $myType]//xsd:element" mode="findXLink"/>
> </xsl:otherwise>
> If your schema is large you would likely get significant speedup if you
> replaced all occurrences
> of
> /xsd:schema/xsd:complexType[@name = $myType]
> by
> key('type', $myType)
> defined via
> <xsl:key name="'type' match="/xsd:schema/xsd:complexType" use="@name"/>
Thanks for the tip.
> David

All the best

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