Using XSLT to convert a value to upper or lowercase (See related posts)

This code was copied from XSLT Case Conversion Solution [topxml.com]

Firstly lets place all the letters of the alphabet, lower case and upper case in variables.

<xsl:variable name="lcletters">abcdefghijklmnopqrstuvwxyz</xsl:variable>
<xsl:variable name="ucletters">ABCDEFGHIJKLMNOPQRSTUVWXYZ</xsl:variable>

To then convert our data to upper case we use the translate method, which replaces all the lower case characters with upper case.

<xsl:value-of select="translate($toconvert,$lcletters,$ucletters)"/>

Lower Case Transformation

The lower case transformation is basically the same:

<xsl:value-of select="translate($toconvert,$ucletters,$lcletters)"/>