I have been using
<xsl:sort select="."/> method to sort some values, Can i force the sort method to follow order as,
i) sort numbers first
ii) next greek symbols
iii) and next english alphabets
What i get as output is,
iii) greek symbols
You could use three
xsl:sort where the first tries to remove anything but digits e.g.
<xsl:sort select="xs:integer(replace(., '[^0-9]+', ''))"/>
then add a second sort
<xsl:sort select="replace(., '[^0-9a-z]+', '', 'i')"/>
to sort on the remaining Greek characters and lastly do
<xsl:sort select="replace(., '[^a-z]+', '', 'i')"/>
to sort on the English letters. If needed the regular expression would also allow you to define the range of Greek letters but I don't know there unicode numbers so if you need that you can look it up at unicode.org.