From 0e0a68d94cc2e18f09155657158e22d5cdc176c1 Mon Sep 17 00:00:00 2001
From: EuAndreh <eu@euandre.org>
Date: Thu, 13 Aug 2020 06:12:39 -0300
Subject: Create Jekyll hook to add header anchors based on the header IDs

Impement add-anchor-to-header-from-header-id.rb using regexps, like the
"official hooks" do:
- https://github.com/jekyll/jekyll-mentions
- https://github.com/jekyll/jemoji
---
 _plugins/add-anchor-to-header-from-header-id.rb | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 _plugins/add-anchor-to-header-from-header-id.rb

(limited to '_plugins')

diff --git a/_plugins/add-anchor-to-header-from-header-id.rb b/_plugins/add-anchor-to-header-from-header-id.rb
new file mode 100644
index 0000000..8c100b0
--- /dev/null
+++ b/_plugins/add-anchor-to-header-from-header-id.rb
@@ -0,0 +1,9 @@
+Jekyll::Hooks.register :documents, :post_render do |doc|
+  if doc.output_ext == ".html"
+    doc.output =
+      doc.output.gsub(
+        /<h([1-6])(.*?)id="([\w-]+)"(.*?)>(.*?)<\/h[1-6]>/,
+        '<a class="header-anchor" id="\3-header-anchor" href="#\3"><h\1\2id="\3"\4>\5<img class="simple-icon" src="/images/link.svg" aria-hidden="true" /></h\1></a>'
+      )
+  end
+end
-- 
cgit v1.2.3