Building a Citation Conversion table for Mayhoff Perseus' Naturalis Historia

conversion.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"
    exclude-result-prefixes="xs"
    xmlns="http://www.tei-c.org/ns/1.0"
    version="2.0">
    <xsl:output method="text" />
    <xsl:template match="/">
        <xsl:text>Mayhoff Perseus Citation Scheme,Equivalence
</xsl:text>
        <xsl:for-each select="//*:div[@subtype='book']">
            <xsl:variable name="book" select="@n"/>
            <xsl:for-each select="current()/*:div[@subtype='chapter']">
                <xsl:variable name="chapter" select="@n"/>
                <xsl:for-each select="current()//*:milestone">
                    <xsl:value-of select="$book"/>
                    <xsl:text>.</xsl:text>
                    <xsl:value-of select="$chapter"/>
                    <xsl:text>,</xsl:text>
                    <xsl:value-of select="$book"/>
                    <xsl:text>.</xsl:text>
                    <xsl:value-of select="@n"/>
                    <xsl:text>
</xsl:text>
                </xsl:for-each>
            </xsl:for-each>
        </xsl:for-each>
    </xsl:template>
    <xsl:template match="text()" />
</xsl:stylesheet>

PerseusCitationConversionTable.md

Sometime, Perseus XML files contains two concurrent citation sytems, one will be used for passage matching on the web interface and one will be marked but not used. It might be you are looking at a secondary source using another citation scheme. Here is a simple XSL and an example output based on Pliny the Elder Mayhoff-Perseus digitized Edition

To do that, I simply applied the XSL below in Oxygen to the XML file. It results in a simple CSV file with all references and the equivalences.

table.csv