function diffText(a,b){
	var changes = []
	var text = a
	while(text !== b){
		var c = partiallyDiffText(text,b)
		if(c.type === 'add'){
			text = text.substr(0,c.index)+c.value+text.substr(c.index)
		}else{
			text = text.substr(0,c.index)+text.substr(c.index+c.many)
		}
		changes.push(c)
	}
	
	return changes
}
function diffText(a,b){
	var changes = []
	var text = a
	while(text !== b){
		var c = partiallyDiffText(text,b)
		if(c.type === 'add'){
			text = text.substr(0,c.index)+c.value+text.substr(c.index)
		}else{
			text = text.substr(0,c.index)+text.substr(c.index+c.many)
		}
		changes.push(c)
	}
	
	return changes
}
function diffText ( a , b ) { var changes = [ ] var text = a while ( text !== b ) { var c = partiallyDiffText ( text , b ) if ( c . type === 'add' ) { text = text . substr ( 0 , c . index ) + c . value + text . substr ( c . index ) } else { text = text . substr ( 0 , c . index ) + text . substr ( c . index + c . many ) } changes . push ( c ) } return changes }
produces one or two changes that succinctly describe the changes to the text
produces one or two changes that succinctly describe the changes to the text