1 files changed, 9 insertions, 0 deletions
diff --git a/lib/output/modifiers/addHeadingId.js b/lib/output/modifiers/addHeadingId.js
new file mode 100644
index 0000000..751f4b8
--- /dev/null
+++ b/lib/output/modifiers/addHeadingId.js
@@ -0,0 +1,9 @@
+var slug = require('github-slugid');
+var HTMLModifier = require('./html');
+
+var addHeadingID = HTMLModifier('h1,h2,h3,h4,h5,h6', function(heading) {
+    if (heading.attr('id')) return;
+    heading.attr('id', slug(heading.text()));
+});
+
+module.exports = addHeadingID;