XSLT does not define any case-mapping functions. translate works only if you know which characters you can find in the string (for the same reasons that in Perl tr{A-Z}{a-z} will not lowercase a string correctly)

You could write an extension function in Perl, register it in libxmls's xpath context, and use it. There should be a test in the XML::LibXML distribution defining extension functions.

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        dakkar - Mobilis in mobile