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Old April 9th, 2007, 07:04 PM
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Default problem accessing nodes using document() and id()

I have 2 xml documents, named dynamic.xml and static.xml. The static document is by far larger than dynamic, as it contains static content that is sparsely populated with variables that will be drawn in from the file dynamic, which will be written by the program that will wrap the transform.

say dynamic looks like this
<?xml version="1.0"?>
<!DOCTYPE variables [
<!ELEMENT variables (variable)*>
<!ELEMENT variable (#PCDATA)>
<!ATTLIST variable id ID #REQUIRED>
]>
<variables>
  <variable id="studyYears">2003-2007</variable>
  <variable id="totalADA">3451</variable>
</variables>

static would contain parts like this:
...
<text embedsVars="true">
  Blah blah blah. The years
  <variable name="studyYears" />
  are going to be really swell, since you will receive a total of
  <variable name="totalADA" />
  . Whoopy!
</text>
...

the stylesheet will apply-templates to <text> and <variables> in static. My problem is trying to get the variables from dynamic into the static.xml variable templates.

I was using this as a template for variable

<xsl:template match="variable">
    <xsl:value-of select="id(document('dynamic.xml')/*/@name)" />
</xsl:template>

This works to pull text straight from the document, but I cannot access nodes based on their ids. Can this be done? If so, what am I doing wrong?



lvnrvltn
si phi
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Old April 9th, 2007, 07:12 PM
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oh,

Im using windows xp, and xalan-java 2.7.0 and apache FOP 0.93.

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Old April 10th, 2007, 03:23 AM
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Default

Remember that id() searches the document that contains the context node.

When you've got two documents like this it's always a good idea to declare global variables:

<xsl:variable name="staticDoc" select="/"/>
<xsl:variable name="dynamicDoc" select="document('dynamic.xml')"/>


Assume that the context node is the <variable> element in the static doc.

In XSLT 2.0 you can do

<xsl:value-of select="id(@name, $dynamicDoc)"/>

In 1.0 it has to be:

<xsl:variable name="id" select="@name"/>
<xsl:for-each select="$dynamicDoc">
  <xsl:value-of select="id($id)"/>
</xsl:for-each>

The for-each here serves no purpose other than to change the context node.

Michael Kay
http://www.saxonica.com/
Author, XSLT Programmer's Reference and XPath 2.0 Programmer's Reference
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Old April 12th, 2007, 11:05 PM
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works great. thanks

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