Rails’ ActiveSupport adds underscore to the String using the following: class String def underscore self.gsub(/::/, “https://stackoverflow.com/”). gsub(/([A-Z]+)([A-Z][a-z])/,’\1_\2′). gsub(/([a-z\d])([A-Z])/,’\1_\2′). tr(“-“, “_”). downcase end end Then you can do fun stuff: “CamelCase”.underscore => “camel_case”
In XSLT 1.0 the upper-case() and lower-case() functions are not available. If you’re using a 1.0 stylesheet the common method of case conversion is translate(): <xsl:variable name=”lowercase” select=”‘abcdefghijklmnopqrstuvwxyz'” /> <xsl:variable name=”uppercase” select=”‘ABCDEFGHIJKLMNOPQRSTUVWXYZ'” /> <xsl:template match=”https://stackoverflow.com/”> <xsl:value-of select=”translate(doc, $lowercase, $uppercase)” /> </xsl:template>