Also relevant to an implementation of Zend_Filter::getAlpha():
http://framework.zend.com/issues/browse/ZF-550
1.) Not all languages seemed to be supported
2.) Performance problems if used in standard... should be selectable when
used if use it or not
3.) This way ALL characters would be given... So if we have "Exámplé" it
would also returned but á and è are not
contained within the english characterset. Could lead to problems...
Not sure if there are other related issues but this was what came me in
mind.
Greetings
Thomas
