how to escape single quote in xslt substring function

Question

I tried to substring data with single quote in XSLT:

String : DataFromXML:'12345' 

expected Result: 12345

<xsl:value-of select="substring-after('$datafromxml','DataFromXML:')"/> 

Result: '12345'

i tried below code

<xsl:value-of select="substring-after('$datafromxml','DataFromXML:&#39;')"/>  <xsl:value-of select="substring-after('$datafromxml','DataFromXML:&apos;')"/>  <xsl:value-of select="substring-after('$datafromxml','DataFromXML:'')"/> 

Error:

String literal was not closed 'DataFromXML:'--->'<--- 

Answer 1

The general rules for escaping are:

In 1.0:

• if you want the attribute delimiter in a string literal, use the XML escape form " or '
• if you want the string delimiter in a string literal, you're hosed

In 2.0:

• if you want the attribute delimiter in a string literal, use the XML escape form " or '
• if you want the string delimiter in a string literal, double it (for example, 'I can''t')

The use of a variable $quot or $apos as shown by Vitaliy can make the code much clearer.

Answer 2

This should work:

<xsl:variable name="apos">'</xsl:variable>  ...  <xsl:value-of select="substring-before(substring-after($datafromxml, concat('DataFromXML:', $apos)), $apos)" />