f()=1;
?x
?sin
?f
?echo
?default(echo)
?default(log)
alias(new,sin)
?new
addhelp(x,"test1")
addhelp(sin,"test2")
addhelp(f,"test3")
addhelp(echo,"test4")
addhelp(new,"test5")
addhelp(addii,"test6")
?x
?sin
?f
?echo
?new
?does_not_exist
?
?.
?\
?2
?addii
\t
g()=0;
\u
?_&&_
?_==_
