From e693717f2aa2d65f8f0cf6412a01084280fc2c9a Mon Sep 17 00:00:00 2001
From: Hakim El Hattab
Date: Sun, 28 Oct 2012 18:09:54 -0400
Subject: update syntax highlight after editing (#210), move markdown and
 highlight scripts from lib to plugin

---
 plugin/markdown/markdown.js | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 plugin/markdown/markdown.js

(limited to 'plugin/markdown/markdown.js')

diff --git a/plugin/markdown/markdown.js b/plugin/markdown/markdown.js
new file mode 100644
index 0000000..07ffd80
--- /dev/null
+++ b/plugin/markdown/markdown.js
@@ -0,0 +1,32 @@
+// From https://gist.github.com/1343518
+// Modified by Hakim to handle Markdown indented with tabs
+(function(){
+
+    if( typeof Showdown === 'undefined' ) {
+        throw 'The reveal.js Markdown plugin requires Showdown to be loaded';
+    }
+
+    var sections = document.querySelectorAll( '[data-markdown]' );
+
+    for( var i = 0, len = sections.length; i < len; i++ ) {
+        var section = sections[i];
+
+        var template = section.querySelector( 'script' );
+
+        // strip leading whitespace so it isn't evaluated as code
+        var text = ( template || section ).innerHTML;
+
+        var leadingWs = text.match(/^\n?(\s*)/)[1].length,
+            leadingTabs = text.match(/^\n?(\t*)/)[1].length;
+
+        if( leadingTabs > 0 ) {
+            text = text.replace( new RegExp('\\n?\\t{' + leadingTabs + '}','g'), '\n' );
+        }
+        else if( leadingWs > 1 ) {
+            text = text.replace( new RegExp('\\n? {' + leadingWs + '}','g'), '\n' );
+        }
+
+        section.innerHTML = (new Showdown.converter()).makeHtml(text);
+    }
+
+})();
\ No newline at end of file
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