auto-conversion strings/list

[nylki]

Idea: If axiom is a string: just use string operations (because they are faster), but once a production tries to return an object, transform axiom into list of objects so it can work without errors.

Vice versa, when the axiom is a list of objects, any productions result that is only strings would be auto-transformed into list of objects.

This makes it possible to write shorter productions in productions where you eg. don't need parameters, while maintaining flexibility when you want to use a more complex (context sensitive, parametric) production.

Instead of writing

let lsystem = new LSystem({
	axiom: [{symbol: 'A'}, {symbol: 'B', myParameter: 23}, {symbol: 'C'}],
	productions: {
		'A': [{symbol: 'B'}, {symbol: 'A'}, {symbol: 'B'}, {symbol: 'A'}, {symbol: 'A'}]
		'B': ({part, myParameter}) => {return (myParameter === 23) ? {symbol: 'C'} : part},
		'C': [{symbol: 'B'}, {symbol: 'A'}]
	}
})

You could write:

let lsystem = new LSystem({
	axiom: [{symbol: 'B'}, {symbol: 'B', myParameter: 23}, {symbol: 'C'}],
	productions: {
		'A': 'BABAA'
		'B': ({part, myParameter}) => {return (myParameter === 23) ? {symbol: 'C'} : part},
		'C': 'AB'
	}
})

Should then also mixed iterables be allowed? like:

'B': ['BC', {symbol: 'B', myParameter: 23}, 'C']

Or would it create too much oerhead in general?