Global Script

Global Script is a family of statically-typed pure-functional programming notations, built around a common calculus, useful for all kinds of programming, but focusing on business application programming and data processing to start with.

Global Script's syntax aspires to provide the value of Lisp, at 10% of the cost of in parentheses.

Uniform syntax

Consistent syntax across keywords
Easy to extend
Great for DSLs, or new languages
Easy to write and powerful macros

But not too uniform

Infix operators
Clean blocks
Parenthesis-elision syntax
Layout when you want it
Parentheses only when you need them

Examples

'fibs = iterate2 (+) 0 1;

'primes = w 2 (repeat true), where: 'w !'n (false@'bs) :- w (n+1) bs; 'w !'p (true@'bs) :- p @ w (p + 1) (set (every-nth-element p) false bs); ;

'fizz-buzz = map (— #2 ∘ fizz ∘ buzz ∘ print) naturals, where: 'fizz !('t ∧《 'n, 'fd, 's, 》) = if 3*_ ∝ n. say log{Fizz} t, else: t; 'buzz !('t ∧《 'n, 'fd, 's, 》) = if 5*_ ∝ n. say log{Buzz} t, else: t; 'say 's₀ 《 'n, true, 's1, 》 :- 《 n, true, s₀ <> s₁, 》; 'say 's₀ 《 'n, false, _, 》 :- 《 n, true, s₀, 》; 'print 'n = 《 n, false, fmt-decimal n, 》;

I/O Examples

λ _. send: fmt.line: qq{hello world}

λ 'as. send: fmt.line: fmt.words as

λ 'as. for 'a ∈ as. analyzeM file.open o/r/ fn<§a>. case left 'err. to-err: send qq{§a: §fmt{%s}(err)\n}, case right 'fh. cat << fh, where: 'cat = for 's ← receive: many symbol. send s;

GUI Examples

λ _. text log{Hello, world!}

λ _. 〈{ _ ← display: λ 's. text log{Hello, §(get (name #contents) s)!}; labelled log{Name}: textbox 'name str{}; ; }〉

λ _. 〈{ _ ← display: λ 's. text log{Hello, §(get name s)!}; labelled log{Name} (textbox 'inpname str{}) <> button 'go (text log{Go}); state 'name str{}; _ ← on (go #click): for 'nm ← gets (inpname #contents). sets name nm; }〉

Uniform syntax

But not too uniform

Examples

I/O Examples

GUI Examples

Other sites

Get Global Script