From 199df5778829e9cbf45f25e69b2f6d90b6fa0629 Mon Sep 17 00:00:00 2001
From: livelazily <livelazily@gmail.com>
Date: Tue, 10 Jun 2014 11:47:11 +0800
Subject: [PATCH] generate header id the same as github

---
 lib/parse/renderer.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/parse/renderer.js b/lib/parse/renderer.js
index 4da312eae9..8e566f25ef 100644
--- a/lib/parse/renderer.js
+++ b/lib/parse/renderer.js
@@ -135,5 +135,10 @@ GitBookRenderer.prototype.listitem = function(text) {
     return GitBookRenderer.super_.prototype.listitem(this._createCheckboxAndRadios(text));
 };
 
+GitBookRenderer.prototype.heading = function(text, level, raw) {
+    var id = this.options.headerPrefix + raw.toLowerCase().replace(/[^\w -]+/g, '').replace(/ /g, '-');
+    return '<h' + level + ' id="' + id + '">' + text + '</h' + level + '>\n';
+}
+
 // Exports
 module.exports = GitBookRenderer;