It seems to me that this should be an easy thing to do with key but I'm struggling.
I have two XML files with <w> elements with <m> elements within.
They both have a @corresp attribute and a @sameAs attribute, but one of the files has is missing a number of the @sameAs attributes.
I would like to copy over the missing @sameAs attributes from one file to the other with the assumption that the @sameAs value is paired with the @corresp attribute's value (they are English/Spanish translations).
Where a value for @sameAs already exists, I this should not be overwritten.
The @sameAs - @corresp pairs are valid across both m and w.
The input file looks like this:
<p>
<w pos="N" corresp="house" sameAs="casa/ruca"><m corresp="house" sameAs="casa" type="root">ruca</m></w>
<w pos="N" corresp="man"><m corresp="man" type="root">wentru</m></w>
<w pos="AJ" corresp="bad"><m corresp="bad" type="root">weda</m></w>
<w pos="N" corresp="query"><m corresp="stone/rock" sameAs="piedra/roca" type="root">cura</m><m corresp="instrumental" type="suffix">we</m></w>
</p>
The output should be:
<p>
<w pos="N" corresp="house" sameAs="casa/ruca"><m corresp="house" sameAs="casa" type="root">ruca</m></w>
<w pos="N" corresp="man" sameAs="hombre"><m corresp="man" sameAs="hombre" type="root">wentru</m></w>
<w pos="AJ" corresp="bad" sameAs="malo(a)"><m corresp="bad" type="root" sameAs="malo(a)">weda</m></w>
<w pos="N" corresp="query"><m corresp="stone/rock" sameAs="piedra/roca" type="root">kura</m><m corresp="instrumental" type="suffix">we</m></w>
</p>
The lookup file looks like this:
<p>
<w pos="N" corresp="house" sameAs="casa"><m corresp="house" sameAs="casa" type="root">ruka</m></w>
<w pos="N" corresp="dog" sameAs="perro"><m corresp="dog" sameAs="perro" type="root">txewa</m></w>
<w pos="N" corresp="man" sameAs="hombre"><m corresp="man" sameAs="hombre" type="root">wentro</m></w>
<w pos="AJ" corresp="bad" sameAs="malo(a)"><m corresp="bad" type="root" sameAs="malo(a)">wesha</m></w>
<w pos="N" corresp="query"><m corresp="stone/rock" sameAs="piedra/roca" type="root">kura</m><m corresp="instrumental" type="suffix">we</m></w>
</p>
I tried the following, but to no avail:
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
xpath-default-namespace="http://www.tei-c.org/ns/1.0"
exclude-result-prefixes="#all"
version="3.0">
<xsl:param name="lookup-doc" select="document('lookup.xml')"/>
<xsl:key name="ref" match="w/@sameAs|node()" composite="yes" use="@corresp"/>
<xsl:mode on-no-match="shallow-copy"/>
<xsl:template match="w/@sameAs|node()[key('ref', (@corresp, @sameAs), $lookup-doc)]">
<xsl:copy-of select="w/@sameAs|node()[key('ref', (@corresp, @sameAs), $lookup-doc)]"/>
</xsl:template>
</xsl:stylesheet>
Any tips?
The textual description to copy sameAs attributes if they don't exist sounds like
<xsl:key name="ref" match="w" use="@corresp"/>
<xsl:mode on-no-match="shallow-copy"/>
<xsl:template match="w[not(@sameAs)][key('ref', @corresp, $lookup-doc)] | m[not(@sameAs)][key('ref', @corresp, $lookup-doc)]">
<xsl:copy>
<xsl:apply-templates select="@*, key('ref', @corresp, $lookup-doc)/@sameAs, node()"/>
</xsl:copy>
</xsl:template>