najtingalo

Najtingalo
==========

Najtingalo (esperanto: nightingale) is a Brainfuck to JavaScript optimising transcompiler.

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#### Najtingalo.toRunnable(bf_code : string, optimisations=0 : any) : function
Converts bf_code string to function with signature: function bf_code(heap=[] : array, print : (n: number) => any), getInput : () => int) : void

#### Najtingalo.isValid(bf_code : string) : boolean
Checks if string is valid Brainfuck code.

#### Najtingalo.optimise(tokensList, level)
Optimises tokensList with given optimisation level.
#### Najtingalo.parseTokens(string)
Parses string as Brainfuck Program. No optimisations are done.

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#### Level 0
>><<+- compiles to:
``javascript
pointer += 1;
pointer += 1;
pointer += -1;
pointer += -1;
heap[pointer] = heap[pointer] + 1;
heap[pointer] = heap[pointer] - 1;
return;
`
#### Level 1
>><<+- compiles to:
`javascript
return; // No ops
`

[-] compiles to:
`javascript
while(heap[pointer]|0) {
heap[pointer] = (heap[pointer]|0) + -1;
}
`
#### Level 2
[-] compiles to:
`javascript
heap[pointer|0] = 0;
``

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http://ginden.github.io/Najtingalo/