editable_to_alto.xsl

<?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.loc.gov/standards/alto/ns-v2#"
    exclude-result-prefixes="xs"
    version="2.0">
    <xsl:output indent="yes"/>
    <xsl:strip-space elements="*"/>
    
    <xsl:template match="processing-instruction('xml-stylesheet')"/>
    
    <xsl:template match="node()|@*">
        <xsl:copy>
            <xsl:apply-templates select="node()|@*"/>
        </xsl:copy>
    </xsl:template>
    
    <xsl:template match="String">
        <xsl:copy>
            <xsl:apply-templates select="node()|@*"/>
        </xsl:copy>
    </xsl:template>
    
    <xsl:template match="String/@CONTENT">
        <xsl:attribute name="CONTENT">
        <xsl:value-of select="parent::String"/>
        </xsl:attribute>
    </xsl:template>
    
    <xsl:template match="String/text()"/>
    
</xsl:stylesheet>