To call a function, write its name followed by the arguments in parentheses. Examples:
foo (1,2,3) bar ()
If the function takes no arguments then it is not necessary to write the empty list of arguments. Therefore the following two calls are equivalent:
bar () bar
If the closure of function that takes no arguments is needed, the call can be avoided by putting the variable immediately inside parenthesis, like this:
(poke) (foo) #<closure>
There is an alternate syntax that can be used in both expressions and expression-statements. This alternate syntax is:
function_name :arg1 val1...
where arg1 is the name of an argument and val1 the value to pass for that argument. This is useful when using functions as commands in the REPL:
(poke) dump :from 12#B :size 16#B :ascii 0
Note that the named arguments can appear in any order. The following two calls are equivalent:
dump :from 12#B :size 16#B dump :size 16#B :from 12#B
If this alternate syntax for function calls is to be used in an expression, it is necessary to surround it with parenthesis:
2 + (gcd :a 1024 :b 8)