convert uniprot file to TSV [WIP]

uniprot_xml_2_tsv.xsl

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

<xsl:stylesheet
	xmlns:u="http://uniprot.org/uniprot"
	xmlns:xsl='http://www.w3.org/1999/XSL/Transform'
	version='1.0'
	>
<xsl:output method="text"  encoding="UTF-8" />

<xsl:variable name="separator" select="'&#x9;'" />
<xsl:variable name="newline" select="'&#10;'" />
<xsl:param name="quote">"</xsl:param>

<xsl:template match="/">
        <xsl:text>accession_number</xsl:text>
				<xsl:value-of select="$separator" />
				<xsl:text>name</xsl:text>
				<xsl:value-of select="$separator" />
				<xsl:text>protein_name</xsl:text>
				<xsl:value-of select="$separator" />
				<xsl:text>gene_name</xsl:text>
				<xsl:value-of select="$separator" />
				<xsl:text>EC</xsl:text>
				<xsl:value-of select="$separator" />
				<xsl:text>COG</xsl:text>
				<xsl:value-of select="$separator" />
				<xsl:text>sequence</xsl:text>
        <xsl:value-of select="$newline" />

        <xsl:for-each select="//u:entry">
					<xsl:value-of select="$quote" /><xsl:value-of select="u:accession[1]" /><xsl:value-of select="$quote" />
					<xsl:value-of select="$separator" />
					<xsl:value-of select="$quote" /><xsl:value-of select="u:name[1]" /><xsl:value-of select="$quote" />
					<xsl:value-of select="$separator" />
					<xsl:value-of select="$quote" /><xsl:value-of select="u:protein/*/u:fullName[1]" /><xsl:value-of select="$quote" />
					<xsl:value-of select="$separator" />
					<xsl:value-of select="$quote" /><xsl:value-of select="u:gene/u:name[@type='primary' or @type='ordered locus']" /><xsl:value-of select="$quote" />
					<xsl:value-of select="$separator" />
					<xsl:value-of select="$quote" /><xsl:value-of select="u:dbReference[@type='EC']/@id" /><xsl:value-of select="$quote" />
					<xsl:value-of select="$separator" />
					<xsl:value-of select="$quote" /><xsl:value-of select="u:dbReference[@type='eggNOG' and u:property[@type='taxonomic scope' and @value='LUCA']]/@id" /><xsl:value-of select="$quote" />
					<xsl:value-of select="$separator" />
					<xsl:value-of select="$quote" /><xsl:value-of select="u:sequence[1]" /><xsl:value-of select="$quote" />
					<xsl:value-of select="$newline" />
        </xsl:for-each>
    </xsl:template>
</xsl:stylesheet>