fib = fn: [n]
calc-fib = fn: [n a b]
if: (n == 0)
a
calc-fib: (n - 1) b (a + b)
calc-fib: n 0 1
print: fib: 10
Syrup is whitespace-significant. Function calls are made by a colon
following an atom. All subsequent arguments on a line are passed to the
function until a newline of the same indentation, the end of a parenthetical,
or a period .
print: "Cool language x" 5000 # Parses as (print "Cool language x" 5000)
print: # Equivalent
"Cool language x"
5000
print: square: 5; square: 6; # "25", "36"
Parentheses are for disambiguation, and are insignificant. Commas are allowed, but not required.
calc-fib: (n - 1) b (a + b)
calc-fib: n - 1, b, a + b
Vector (array) syntax is like JavaScript's array literals. Vectors are not executed as functions.
[5 6 7 8] # equivalent to list: 5 6 7 8
Quoting uses `.
print: `apples # prints "apples"
Infix notation is supported for arithmetic operations and for the assign operator:
5 + 6 # these two lines are
(+: 5 6) # equivalent
test = fn: [] print: 'hi' # declares the function 'test'
Macros are supported:
unless = macro: [cond t f]
[`if cond f t]
print: unless: true "false value" "true value"
Object literals can be defined using quoted strings or string variables as keys (as in python). Any arguments after the first passed to a string function have their properties copied to the new object literal. Finally, curly-braces combine all listed objects into one.
"a": 1 # JSON: {"a": 1}
("some" + "key"): "val" # JSON: {"somekey": "val"}
obj = "b": 2 "c": 3 # parses to ("b" 2 ("c" 3)) and JSON: {"b": 2, "c": 3}
obj2 = {"a": 1, obj} # parses to (combine ("a", 1) obj) and JSON: {"a": 1, "b": 2, "c": 3}
REPL, and lots more bikeshedding.