Pprotect evaluate a function when an error occured in the thread

superclass: FilterPattern

Pprotect(pattern func)

pattern any pattern

func the function to be evaluated when an error occurs. 

The error and the thread are passed as arguments to the function.

// example

(

var x;

var func = { "an error happened".postln };

a = Pprotect(Pseq([1, 3, 3, Pfuncn({ Error.throw }), 2]), func);

x = Pbind(\degree, a, \dur, 0.5).play;

)