git clone 'git://github.com/Fuco1/prognth.git'
progn to group statements and return the value of first, second or last form. This package extends this notion to allow arbitrary index. The macro
prognth takes as a first argument the index of the form whose value is to be returned. If the index is 1, 2 or greater than length of the body, the standard emacs forms are used. Otherwise, this translates to
(prog1 (progn ... first INDEX forms) rest)