Function that removes all accentuation from a string (based on Underscore String)

plainChars.coffee

plainChars = (str) -> 
  	if not str? then return throw(new Error("plainChars needs a param"))
		
		specialChars = 	"ąàáäâãåæćęèéëêìíïîłńòóöôõøśùúüûñçżź"
		plain = "aaaaaaaaceeeeeiiiilnoooooosuuuunczz"
		regex = new RegExp '[' + specialChars + ']', 'g'

		str += ""	
		str.replace regex, (char) -> plain.charAt (specialChars.indexOf char)