Talk:NotesToRefs.xsl
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For obscure reasons I was poking around this stylesheet, trying to figure out what it did. In doing so I started to re-write it a bit in my head, and then thought “why not re-write it for real?”.
I think the following performs the same task. I also think it is easier to follow, and is more “XSLT-like” (i.e., declarative) in its structure, although others may disagree.
<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" exclude-result-prefixes="tei"
xmlns:tei="http://www.tei-c.org/ns/1.0" xmlns="http://www.tei-c.org/ns/1.0" version="1.0">
<!-- possibly improved version of movingnotes.xsl, which I found at
http://wiki.tei-c.org/index.php/NotesToRefs.xsl — Syd Bauman, 2011-04-09
-->
<!-- just to make it easy to change the type= of our generated <ref> elements -->
<xsl:variable name="refType" select="'nota'"/>
<!-- identity transform -->
<xsl:template match="comment()|processing-instruction()|text()">
<xsl:copy/>
</xsl:template>
<xsl:template match="*">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates select="comment()|processing-instruction()|text()|*"/>
</xsl:copy>
</xsl:template>
<!-- if <text> doesn't have a <back>, give it one ... -->
<xsl:template match="tei:text">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
<xsl:if test="not( tei:back )">
<back>
<!-- ... inserting our note <div> into it -->
<xsl:call-template name="make-note-div"/>
</back>
</xsl:if>
</xsl:copy>
</xsl:template>
<!-- insert our note <div> at the end of source <back> -->
<xsl:template match="back">
<xsl:copy>
<xsl:apply-templates select="@*|node()"/>
<xsl:call-template name="make-note-div"/>
</xsl:copy>
</xsl:template>
<xsl:template name="make-note-div">
<div type="notes">
<head xml:lang="la">Notae</head>
<pb n="nts"/>
<xsl:apply-templates select="//tei:note" mode="moveback"/>
</div>
</xsl:template>
<!-- When we come across a <note> in normal processing, put out a <ref> -->
<!-- instead. (We use <ref> instead of <ptr> as that's what PhiloLogic -->
<!-- calls for, even though <ptr> would be more appropriate.) -->
<xsl:template match="tei:note">
<ref type="{$refType}" target="{concat('n',generate-id(.))}" xmlns="http://www.tei-c.org/ns/1.0">
<xsl:attribute name="xml:id">
<!-- see [1] -->
<xsl:value-of select="concat('r',generate-id(.))"/>
</xsl:attribute>
<xsl:attribute name="n">
<xsl:number/>
</xsl:attribute>
</ref>
</xsl:template>
<!-- When we call for a <note> in move-me-to-back mode, put out a -->
<!-- copy of the context node (the <note>) with the needed extra -->
<!-- attributes. -->
<xsl:template match="tei:note" mode="moveback">
<note place="foot" target="{concat('r',generate-id(.))}">
<!-- see [1] -->
<xsl:attribute name="xml:id">
<xsl:value-of select="concat('n',generate-id(.))"/>
</xsl:attribute>
<!-- copy source attrs, but don't overwrite the ones we just -->
<!-- created -->
<xsl:copy-of select="@*[not(attribute::xml:id or attribute::target or attribute::place)]"/>
<xsl:apply-templates select="node()"/>
</note>
<!-- add a carriage return, for tidiness -->
<xsl:text>
</xsl:text>
</xsl:template>
<!-- [1]
You can't create the xml:id= attribute using an attribute value template
(at least not using xsltproc). I.e.,
xml:id={concat('n',generate-id(.))}
results in an error. I *think* this is because the result of evaluating an
attribute value template is always a string, but an NCName is required. When
the XSLT engine builds a tree fragment (as with <xsl:attribute>), it can
build something more complex than a string, in this case an NCName.
-->
</xsl:stylesheet>
