Markdown renderer: Transform non-ASCII characters into unicode in hea…

…ding
hexojs · Dec 28, 2013 · 3037755 · 3037755
1 parent edb2b2c
commit 3037755
Showing 1 changed file with 15 additions and 4 deletions.
diff --git a/lib/plugins/renderer/markdown.js b/lib/plugins/renderer/markdown.js
@@ -4,19 +4,30 @@ var marked = require('marked'),
   highlight = util.highlight,
   htmlTag = util.html_tag;
 
+var anchorId = function(str){
+  return str
+    .replace(/\s+/g, '_')
+    .replace(/\./g, '-')
+    .replace(/[^0-9a-zA-Z_-]/g, function(match){
+      return '-' + match.charCodeAt().toString(16) + '-';
+    })
+    .replace(/-{2,}/g, '-');
+};
+
 module.exports = function(data, options){
   var r = new marked.Renderer(),
     headingId = {};
 
   // Add id attribute to headings
   r.heading = function(text, level){
+    var id = anchorId(text);
+
     // Add a number after id if repeated
-    if (headingId[text]){
-      id = text + '-' + headingId[text];
+    if (headingId.hasOwnProperty(id)){
+      id += '-' + headingId[id];
       headingId[text]++;
     } else {
-      id = text;
-      headingId[text] = 1;
+      headingId[id] = 1;
     }
 
     return htmlTag('h' + level, {id: id}, text) + '\n';