On Thu, 2002-07-25 at 19:07, Andrew J Bromage wrote: > G'day all. > > On Fri, Jul 26, 2002 at 01:27:48AM +0000, Karen Y wrote: > > > 1. How would I convert capital letters into small letters? > > 2. How would I remove vowels from a string? > > As you've probably found out, these are very hard problems.
> Glossing over that concern, current implementations don't support the > relevant UnicodePrims fully, so to do it properly you'll probably need > to parse the case folding files yourself. See: > > http://www.unicode.org/unicode/reports/tr21/ > > Vowels are even harder because I don't think the Unicode standard even > defines what a "vowel" is. Removing vowel _marks_ should be > straightforward once you expand combining characters, but that doesn't > help with the general case. Frankly, I don't like your chances. Shouldn't the solution also take care of languages without upper casing? Clearly the translation problem is easy enough with such languages ( "id" will work just fine), but determining (from context?) that the string is in such a language is more than a bit difficult (especially given that numeric codes can correspond to most everything). Vowels are much more difficult - even given that the language is recognizable, what would happen with languages such as Chinese or Arabic which (I believe) have nothing that even resembles a vowel? Of course, Chinese is a whole problem by itself. -- jeff putnam -- [EMAIL PROTECTED] -- http://home1.get.net/res0tm0p _______________________________________________ Haskell-Cafe mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell-cafe
