From 8857b7c11cb475e91f3fc9204f4fe73f2f29b44f Mon Sep 17 00:00:00 2001
From: bjorn <bjorn@bringert.net>
Date: Wed, 29 Oct 2008 08:39:23 +0000
Subject: [PATCH] JS parser: remove empty tokens after lexing. This fixes a
 problem where a string with leading space couldn't be parsed.

---
 javascript/gflib.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/javascript/gflib.js b/javascript/gflib.js
index ce2b0267..faf7b1d6 100644
--- a/javascript/gflib.js
+++ b/javascript/gflib.js
@@ -410,6 +410,10 @@ Parser.prototype.showRules = function () {
 };
 Parser.prototype.parseString = function (string, cat) {
 	var tokens = string.split(" ");
+	// remove empty tokens
+	for (var i = tokens.length - 1; i >= 0; i--) {
+		if (tokens[i] == "") { tokens.splice(i, 1); }
+	}
 	chart = new Chart(true);
 	predict(this.rules, tokens);
 	while (chart.updated) {