readline-statevar

readline package is a good wrapping library around libreadline. Unfortunately, there is a lot of set/get pairs of functions, which clutter namespace. This kind of API can be nicely expressed as StateVars, as in HOpenGL. readline-statevar seeks to fill this gap and provide nicer API based on StateVars. For clarity: this module wraps only System.Console.Readline module. System.Console.SimpleLineEditor is left untouched.