Re: removing diacritical marks from strings

["Eduardo Ochs" <eduardoochs@...>]

Hi Norman,

> Does anybody happen to have a mapping (or an algorithm) that will
> remove diacritical marks from strings?  I'd like to convert Jérôme to
> Jerome and that sort of thing.

I use this:

 translatechars = function (str, re, tbl)
     return (string.gsub(str, re, function (c) return tbl[c] or c end))
   end

 unaccent_from, unaccent_to =
   "ÀÁÂÃÄÅÇÈÉÊËÌÍÎÏÑÒÓÔÕÖØÙÚÛÜÝàáâãäåçèéêëìíîïñòóôõöøùúûüý",
   "AAAAAACEEEEIIIINOOOOOOUUUUYaaaaaaceeeeiiiinoooooouuuuy"

 unaccent_table = {}
 for i = 1,string.len(unaccent_from) do
   unaccent_table[string.sub(unaccent_from, i, i)] =
                  string.sub(unaccent_to, i, i)
 end

 unaccent_re = "([\192-\254])"

 unaccent = function (str)
     return translatechars(str, unaccent_re, unaccent_table)
   end

Cheers,
 Eduardo Ochs
 http://angg.twu.net/
 eduardoochs@gmail.com