# Soul lang
## Hello World
```lua
main = () => print "Hello World"
```
## Comments
```lua
-- This is a single line comment
```
## Primitives
```lua
-- Numbers
1_000_000.00
-- Booleans
true or false
-- Strings
"Hello Rafiki"
-- Closure
add = (x,y) => x + y
id = x => x
multi = () => {
	print "one"
	print "two"
	print "three"
}
```
## Operators
```lua
-- Assignment
assign  = 1
assign += 1
assign -= 1
assign *= 1
assign /= 1
assign %= 1
-- Arithmetic
action = 1 + 1
action = 1 - 1
action = 1 * 1
action = 1 / 1
action = 1 % 1
-- Comparison
is_equal  = true == true
not_equal = true != false
less_than  = 1 < 2
less_equal = 1 <= 2
more_than  = 1 > 0
more_equal = 1 >= 1
-- Boolean
bool_and = true and true
bool_or  = true or false
bool_not = not true
```
## Blocks
```lua
-- singleline blocks
if true :: print "Hello Rafiki !"
-- multiline blocks
if true {
	print "Hello Rafiki !"
}
```
## Control flow
```lua
-- if <condition> :: <singleline statement>
if true :: print "Hello Rafiki !"
-- if <condition> { <multiline statement> }
if true {
	print "Hello Rafiki !"
}
-- if <condition> :: <singleline statement> else <singleline statement>
if x < 42 :: print "is less" else print "is more"
-- if <condition> { <multiline statement> } else { <multiline statement> }
if x < 42 {
	print "is less"
} else {
	print "is more"
}
-- if <capture> in <optional> :: <statement>
optional : number? = 42
if x in optional :: print "Number is {x}"
-- for <condition> :: <statement>
for true :: print "infinity"
-- for <initializer> ; <condition> :: <statement>
for x = 10 ; x > 0 :: x -= 1
-- for <initializer> ; <condition> ; <action> :: <statement>
for x = 10; x > 0; x -= 1 :: print "Countdown {x}\n"
-- for <capture> in <optional,array> :: <statement>
array = [ 1, 2, 3, 4, 5 ]
for x in array :: print "Number {x}\n"
```
## Feature wishlist
Primitives:
- unit
- null
- bool
- rune
- number
- string
- option
- array
- record
- variant
- closure
Control_Flow:
- if  ... else ...
- if  ... in ...
- for ... else ...
- for ... in ...
- pattern matching `match`