ref: a5f0bb12e3809c5f2a6ef5ba6b6d8fa0c1fc168d
dir: /sys/src/cmd/postscript/psfiles/unbind.ps/
%
% Unbind the operators in an executable array or packedarray. Leaves the
% unbound array or the original object on the stack.
%
/unbind {
0 index xcheck
1 index type /arraytype eq
2 index type /packedarraytype eq or and {
dup length array copy cvx
dup 0 exch {
dup type /operatortype eq {
( ) cvs cvn cvx
} if
0 index xcheck
1 index type /arraytype eq
2 index type /packedarraytype eq or and {
unbind
} if
3 copy put pop
1 add
} forall
pop
} if
} def