From 7c25967e5edf2dce8b6f6eb7c4fa2b875ce611a6 Mon Sep 17 00:00:00 2001
From: Rafael Caricio <rafael.jacinto@gmail.com>
Date: Fri, 5 Sep 2014 10:28:40 +0200
Subject: [PATCH] Add error function

---
 gradient-parser.js           | 17 ++++++++++++++++-
 spec/gradient-parser.spec.js |  1 -
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/gradient-parser.js b/gradient-parser.js
index 20b2a1a..36fae2d 100644
--- a/gradient-parser.js
+++ b/gradient-parser.js
@@ -27,6 +27,14 @@ var GradientParser = module.exports = (function() {
     comma: /^,/
   };
 
+  function error(input, cursor, msg) {
+    var err = new Error(input + ':' + cursor + ': ' + msg);
+    err.position = cursor;
+    err.message = msg;
+    err.source = input;
+    throw err;
+  }
+
   function Constructor(input) {
     this.input = input;
     this.cursor = 0;
@@ -38,7 +46,14 @@ var GradientParser = module.exports = (function() {
     if (input) {
       this.input = input;
     }
-    return this.listDefinitions();
+
+    var ast = this.listDefinitions();
+
+    if (this.input) {
+      error(input, cursor, 'Invalid input not EOF');
+    }
+
+    return ast;
   };
 
   def.listDefinitions = function() {
diff --git a/spec/gradient-parser.spec.js b/spec/gradient-parser.spec.js
index 794720b..b139168 100644
--- a/spec/gradient-parser.spec.js
+++ b/spec/gradient-parser.spec.js
@@ -42,7 +42,6 @@ describe('gradient-parser.js', function () {
     beforeEach(function() {
       var parser = new GradientParser();
       ast = parser.parse('linear-gradient(to right bottom, red, blue)');
-      console.log(ast);
     });
 
     it('should get the gradient type', function () {