How to find out that some text starts with a number. : translate « XSLT stylesheet « XML Tutorial

1. XML Tutorial
2. XSLT stylesheet
3. translate

File: Data.xml
<?xml version="1.0" encoding="utf-8"?>
<data>

    <value>3aacc</value>
    <value>9-12-45</value>
    <value>Q6-88</value>
</data>
File: Transform.xslt

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet
      version="1.0"
      xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:template match="/">
      <xsl:apply-templates select="//value"/>
    </xsl:template>
    <xsl:template match="value">
      <Paragraph>
        <xsl:value-of select="."/>
        <xsl:if test="starts-with(translate(., '0123456789', '9999999999'), '9')">
          <xsl:text> (the text starts with a number)</xsl:text>
        </xsl:if>
      </Paragraph>
    </xsl:template>
</xsl:stylesheet>

Output:

<?xml version="1.0" encoding="UTF-8"?><Paragraph>3aacc (the text starts with a number)</Paragraph><Paragraph>9-12-45 (the text starts with a number)</Paragraph><Paragraph>Q6-88</Paragraph>