XSLT for selecting only certain layers from an Inkscape SVG file.

select-layer.svg

<?xml version="1.0" encoding="UTF-8"?>

<xsl:stylesheet
    version="1.0"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    xmlns:svg="http://www.w3.org/2000/svg"
    xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
    >

    <xsl:param name="layer"/>

    <xsl:template match="@*|node()">
        <xsl:copy>
            <xsl:apply-templates select="@*|node()"/>
        </xsl:copy>
    </xsl:template>

    <xsl:template match="svg:g[@inkscape:label]">
        <xsl:if test="@inkscape:label = 'base' or @inkscape:label = $layer">
            <xsl:copy>
                <xsl:apply-templates select="@*|node()"/>
            </xsl:copy>
        </xsl:if>
    </xsl:template>

    <xsl:template match="svg:g/@style[../@inkscape:label]">
        <xsl:attribute name="svg:style">display:inline</xsl:attribute>
    </xsl:template>
</xsl:stylesheet>