All new

alle new

node_modules/lop/lib/TokenIterator.js

@@ -0,0 +1,28 @@
+var TokenIterator = module.exports = function(tokens, startIndex) {
+    this._tokens = tokens;
+    this._startIndex = startIndex || 0;
+};
+
+TokenIterator.prototype.head = function() {
+    return this._tokens[this._startIndex];
+};
+
+TokenIterator.prototype.tail = function(startIndex) {
+    return new TokenIterator(this._tokens, this._startIndex + 1);
+};
+
+TokenIterator.prototype.toArray = function() {
+    return this._tokens.slice(this._startIndex);
+};
+
+TokenIterator.prototype.end = function() {
+    return this._tokens[this._tokens.length - 1];
+};
+
+// TODO: doesn't need to be a method, can be a separate function,
+// which simplifies implementation of the TokenIterator interface
+TokenIterator.prototype.to = function(end) {
+    var start = this.head().source;
+    var endToken = end.head() || end.end();
+    return start.to(endToken.source);
+};