On Sat, 26 Oct 2002, iudicium ferat wrote: > Based upon what I have read, you will likely need to do something > specific, manually...
> http://www.novaroma.org/via_romana/numbers.html Hmm, at least the calculator on that page accepts things like IM and CMCM that in my understanding are not well formed. I would try /\b (M+|(?=[CDXLVI])) (C{1,4}|CD|DC{0,4}|CM|(?=[XLVI])|(?<=M)) (X{1,4}|XL|LX{0,4}|XC|(?=[VI])|(?<=[MCD])) (I{1,4}|IV|VI{0,4}|IX|(?<=[MCDLX])) \b/x The hard part is not to match the empty string. It would be much easier if the roman numeral '' for were also allowed to match but from your application this is probably not what you want. If you don't like numbers like VIIII (I have seen those on houses) because you think this should rather be written as IX s/4/3/g above. Robert -- ..oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oOo.oO Robert C. Helling Department of Applied Mathematics and Theoretical Physics University of Cambridge print "Just another Phone: +44/1223/766870 stupid .sig\n"; http://www.aei-potsdam.mpg.de/~helling
