uns is a lispy programming language using primarily the characters one can reach without using the shift key
--
i made uns because i was away on vacation and my shift key broke
this should not stop you from programming
so i did what anyone would, made an unshifted programming language that doesn't require the shift key
uns uses [] for lists, because the more common round parantheses are not reachable without the shift key
uns uses lowercase characters, -, = and . for symbols
if you're lucky and have a fully functional keyboard you can use uppercase characters inside strings
strings do not provide the otherwise common escape characters eventhough backslash \ is available without the shift key
some characters seem to unfairly be unshifted, like backtick and backslash, and are illegal in uns
commas are also not allowed, i've written enough commas for a lifetime, my comma key is fine though
comments start with ; and end at the end of the line
uns has special forms here's if
[if 0 'true' 'false'] ; => 'false'
[if 1 'true' 'false'] ; => 'true'
0 is false, everything else is true
you can define functions with func
[func inc [n] [add n 1]] ; => []
[inc 1] ; => 2
you don't have closures or anonymous functions and function names are not values
you have local variables with let
[let [x 1] [add x 1]] ; => 2
[let [x 1 y x] [add y 1]] ; => 2
instead of recursion you use loop and cont
[loop [i 0 r 0]
[if [lt i 11]
[cont [inc i] [add i r]]
r]] ; => 55
but you can still use recursion if you want
[func recursive-gauss [n]
[if [eq n 0]
0
[add n [recursive-gauss [dec n]]]]]
[recursive-gauss 10] ; => 55
you can run uns by
npm install
node . # to start the repl
node . examples/demo.uns # to run a file