logoots-structs/lib/iterator.js

Provides several data structures to represent a text using a ropes-like structure and manipulating it

var Iterator = function (it, more) {
	this.it = it || null;
	this.more = more || 0;
	this.nexte = 'a';
	this.loadNext();
};

Iterator.prototype.loadNext = function () {
	if(this.it.hasNext()) {
		this.nexte = this.it.next();
	}
	else {
		this.nexte = this.more;
		this.more = null;
	}
};

Iterator.prototype.hasNext = function () {
	return this.nexte!=null;
};

Iterator.prototype.next = function () {
	var ret = this.nexte;
	this.loadNext();
	return ret;
};

module.exports = Iterator;