argument expansion
this feature has been implemented and is ready to be shipped in build011 release.
the operator for agument expansion is appended after a symbol. you can specify any number of such expressions in a function call.
arg3 = [arg3_1, arg3_2] arg4 = [arg4_1, arg4_2, arg4_3] f(arg1, arg2, arg3*, arg4*)
implementation of an argument expansion.