XSLT中判断文本是否包含

<xsl:choose>

<xsl:when
test="contains(.,'Supplemental Listing
Document dated')">

<xsl:analyze-string
select="." regex="Supplemental Listing Document
dated\s(0*\d+[\s\-][A-Za-z]+[\s\-]\d+)">

<xsl:matching-substring>

<xsl:value-of
select="regex-group(1)"/>

</xsl:matching-substring>

</xsl:analyze-string>

</xsl:when>

<xsl:otherwise>

<xsl:analyze-string
select="." regex="Supplemental Listing Document expected to be
dated on or
about\s(0*\d+[\s\-][A-Za-z]+[\s\-]\d+)">

<xsl:matching-substring>

<xsl:value-of
select="regex-group(1)"/>

</xsl:matching-substring>

</xsl:analyze-string>

</xsl:otherwise>

</xsl:choose>