saxon:strip-space
This attribute may be set on the xsl:source-document instruction to specify whitespace
stripping for the document being read. The permitted values are: #all
strips all
whitespace text nodes; #none
means no whitespace stripping; #ignorable
strips whitespace in elements declared as having element-only content; and #default
follows the rules in xsl:strip-space/xsl:preserve-space declarations.