XSLT HELL

XSLT HELL

Data:

a > b > c > d > e

XSD:
    <xs:element name="department">
        <xs:annotation>
            <xs:documentation>Merchant defined department hierarchy.</xs:documentation>
        </xs:annotation>
        <xs:complexType>
            <xs:sequence>
                <xs:element name="first_level_department">
                    <xs:simpleType>
                        <xs:restriction base="xs:string">
                            <xs:maxLength value="255"/>
                            <xs:minLength value="1"/>
                        </xs:restriction>
                    </xs:simpleType>
                </xs:element>
                <xs:element minOccurs="0" name="second_level_department">
                    <xs:simpleType>
                        <xs:restriction base="xs:string">
                            <xs:maxLength value="255"/>
                        </xs:restriction>
                    </xs:simpleType>
                </xs:element>
                <xs:element minOccurs="0" name="third_level_department">
                    <xs:simpleType>
                        <xs:restriction base="xs:string">
                            <xs:maxLength value="255"/>
                        </xs:restriction>
                    </xs:simpleType>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
    </xs:element>

XSLT:
  <xsl:template name="parseMerchantCategory">
		<xsl:param name="flatName" select="."/>
		<xsl:param name="levelNumber" select="1"/>
		<xsl:param name="levelName">_level_department</xsl:param>
		<xsl:choose>
			<xsl:when test="contains($flatName, '&gt;')">
				<xsl:choose>
					<xsl:when test="$levelNumber = 3">
						<xsl:element name="{concat($levelName, $levelNumber)}">
							<xsl:value-of select="normalize-space($flatName)"/>
						</xsl:element>
					</xsl:when>
					<xsl:otherwise>
						<xsl:element name="{concat($levelName, $levelNumber)}">
							<xsl:value-of select="normalize-space(substring-before($flatName, '&gt;'))"/>
						</xsl:element>
						<xsl:call-template name="parseMerchantCategory">
							<xsl:with-param name="flatName" select="substring-after($flatName, '&gt;')"/>
							<xsl:with-param name="levelNumber" select="$levelNumber + 1"/>
						</xsl:call-template>
					</xsl:otherwise>
				</xsl:choose>
			</xsl:when>
			<xsl:otherwise>
				<xsl:element name="{concat($levelName, $levelNumber)}">
					<xsl:copy-of select="normalize-space($flatName)"/>
				</xsl:element>
			</xsl:otherwise>
		</xsl:choose>
	</xsl:template>