Subject: RE: is it possible xpath expression [A-Z]?
From: "Michael Kay" <mike@xxxxxxxxxxxx>
Date: Fri, 27 Nov 2009 18:11:08 -0000
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> The pattern for correctly written roman numerals is
> ^M*(CM|CD|D?C{0,3})(XC|XL|L?X{0,3})(IX|IV|V?I{0,3})$
That's "correctly" according to the usually accepted modern conventions for
roman numbering. But see for example
http://en.wikipedia.org/wiki/Roman_numerals#IIII_vs_IV
which includes a photograph of an inscription on Admiralty Arch in London
recording the date as MDCCCCX (=1910).
Regards,
Michael Kay
http://www.saxonica.com/
http://twitter.com/michaelhkay
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