MACROP name MACRO? name
name
Outputs TRUE if the input is the name of a user-defined macro or a library macro. Outputs FALSE, otherwise.
name must be a word.
SHOW MACROP "ABC false .DEFMACRO "ABC [[a b] [PRINT :a] [PRINT :b]] SHOW MACROP "ABC true
SHOW MACROP "ABC
.DEFMACRO "ABC [[a b] [PRINT :a] [PRINT :b]] SHOW MACROP "ABC