From 10f9c153a3b342fa9a113506b6d8e97486ff70d5 Mon Sep 17 00:00:00 2001
From: Titus <wastingtape@gmail.com>
Date: Wed, 20 Jun 2012 17:16:40 -0600
Subject: [PATCH] Added Google Prettify extension (output modification
 extension test)

---
 src/extensions/google-prettify.js          | 30 ++++++++++++++++++++++
 test/extensions/google-prettify/basic.html |  7 +++++
 test/extensions/google-prettify/basic.md   |  6 +++++
 3 files changed, 43 insertions(+)
 create mode 100644 src/extensions/google-prettify.js
 create mode 100644 test/extensions/google-prettify/basic.html
 create mode 100644 test/extensions/google-prettify/basic.md

diff --git a/src/extensions/google-prettify.js b/src/extensions/google-prettify.js
new file mode 100644
index 0000000..c262a4f
--- /dev/null
+++ b/src/extensions/google-prettify.js
@@ -0,0 +1,30 @@
+
+//
+//  Google Prettify
+//  A showdown extension to add Google Prettify (http://code.google.com/p/google-code-prettify/)
+//  hints to showdown's HTML output.
+//
+
+(function(){
+
+    var prettify = function(converter) {
+        return [
+            { type: 'output', filter: function(source){
+
+                return source.replace(/(<pre>)?<code>/gi, function(match, pre) {
+                    if (pre) {
+                        return '<pre class="prettyprint linenums" tabIndex="0"><code data-inner="1">';
+                    } else {
+                        return '<code class="prettyprint">';
+                    }
+                });
+            }}
+        ];
+    };
+
+    // Client-side export
+    if (typeof window !== 'undefined' && window.Showdown && window.Showdown.extensions) { window.Showdown.extensions.googlePrettify = prettify; }
+    // Server-side export
+    if (typeof module !== 'undefined') module.exports = prettify;
+
+}());
diff --git a/test/extensions/google-prettify/basic.html b/test/extensions/google-prettify/basic.html
new file mode 100644
index 0000000..13c7f40
--- /dev/null
+++ b/test/extensions/google-prettify/basic.html
@@ -0,0 +1,7 @@
+
+<p>Here's a simple hello world in javascript:</p>
+
+<pre class="prettyprint linenums" tabIndex="0"><code data-inner="1">alert('Hello World!');
+</code></pre>
+
+<p>The <code class="prettyprint">alert</code> function is a build-in global from <code class="prettyprint">window</code>.</p>
\ No newline at end of file
diff --git a/test/extensions/google-prettify/basic.md b/test/extensions/google-prettify/basic.md
new file mode 100644
index 0000000..fba19fa
--- /dev/null
+++ b/test/extensions/google-prettify/basic.md
@@ -0,0 +1,6 @@
+
+Here's a simple hello world in javascript:
+
+    alert('Hello World!');
+
+The `alert` function is a build-in global from `window`.
\ No newline at end of file