Hi Folks,

The value of $legacy-elmt is this element:

<test>Hello, world</test>

Create a variable which holds between single quotes the value of the element

<xsl:variable name="tmp-legacy-elmt-value" as="xs:string+">
             <xsl:text>'</xsl:text>
             <xsl:value-of select="string($legacy-elmt)"/>
             <xsl:text>'</xsl:text>
</xsl:variable>

<xsl:variable name="legacy-elmt-name" as="xs:string">
             <xsl:value-of select="$tmp-legacy-elmt-value" separator=""/>
  </xsl:variable>

$legacy-elmt-value = 'Hello, world'

That appears to work flawlessly, right?

Not so fast.

Suppose the value of $legacy-elmt is this element:

<test>O'Neil</test>

$legacy-elmt-value = 'O'Neil'

That is an error (unmatched single quote).

What is the best way to fix this error?

Which escape mechanism do you want to use, XPath 2 and later one to
double the single quote?

B <xsl:variable name="legacy-elmt-value" as="xs:string" select="'''' ||
replace($legacy-elmt, '''', '$0$0') || ''''"/>