XML Tutorial/XSLT stylesheet/string

string() transforms its argument into string

   <source lang="xml">

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

   <number>9</number>
   <number>0</number>
   <number>-9</number>
   <number/>

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:variable name="A" select="number(//number[1])"/>
   <xsl:variable name="B" select="number(//number[2])"/>
   <xsl:variable name="C" select="number(//number[3])"/>
   <xsl:variable name="D" select="number(//number[4])"/>
   <xsl:template match="/">
     <Paragraph>
       <xsl:value-of select="string(number($A))"/>
     </Paragraph>
     <Paragraph>
       <xsl:value-of select="string(number($D))"/>
     </Paragraph>
     <Paragraph>
       <xsl:value-of select="$A"/>
       <xsl:text>/</xsl:text>
       <xsl:value-of select="$B"/>
       <xsl:text> = </xsl:text>
       <xsl:value-of select="string($A div $B)"/>
     </Paragraph>
     <Paragraph>
       <xsl:value-of select="$C"/>
       <xsl:text>/</xsl:text>
       <xsl:value-of select="$B"/>
       <xsl:text> = </xsl:text>
       <xsl:value-of select="string($C div $B)"/>
     </Paragraph>
     <Paragraph>
       <xsl:value-of select="$B"/>
       <xsl:text>/</xsl:text>
       <xsl:value-of select="$B"/>
       <xsl:text> = </xsl:text>
       <xsl:value-of select="$B div $B"/>
     </Paragraph>
   </xsl:template>

</xsl:stylesheet> Output: <?xml version="1.0" encoding="UTF-8"?><Paragraph>9</Paragraph><Paragraph>NaN</Paragraph><Paragraph>9/0 = INF</Paragraph><Paragraph>-9/0 = -INF</Paragraph><Paragraph>0/0 = NaN</Paragraph></source>