emptyp
Outputs TRUE if the input object is an empty word or an empty list; otherwise outputs
FALSE.
?emptyp "
TRUE ?emptyp []
TRUE ?emptyp [x]
FALSE ?make "x [] ?emptyp :x
TRUE
first
Outputs the first element of the input object.
?first "zebra z
?first [1 2 3] 1
fput
(firstput) Outputs a new object formed by making the first input object the first element in the second object.
?fput "s "milessmiles smilessmiles
?fput 1 [2 3] [1 2 3]
item
Outputs the specified element of the input object.
?item 4 "dwarf r
list
Outputs a list made up of the input objects, retains lists' outer brackets (compare with s e).
?(list 1 2 3 4) [l 2 3 4]
?List "big [feet] [big [feet]] ?(list)
[]
Chapter 4.7 | AMSTRAD Disc Drive & Interface |
