From a90d3c7061306dd82c6079489d2d096daebbfab6 Mon Sep 17 00:00:00 2001
From: Will Faught <willfaught@users.noreply.github.com>
Date: Sun, 11 Dec 2022 04:26:58 -0800
Subject: [PATCH] Add header links

---
 README.md                         | 1 +
 layouts/partials/paige_page.html  | 2 +-
 layouts/partials/paige_style.html | 9 +++++++++
 3 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5c7dc252..292f8cd1 100644
--- a/README.md
+++ b/README.md
@@ -38,6 +38,7 @@ Term page:
 - Bootstrap support
 - Facebook sharing support
 - Google Analytics support
+- Header links
 - Landing page
 - Light color scheme
 - Math typesetting support
diff --git a/layouts/partials/paige_page.html b/layouts/partials/paige_page.html
index a72ea00b..e569b222 100644
--- a/layouts/partials/paige_page.html
+++ b/layouts/partials/paige_page.html
@@ -14,5 +14,5 @@
 <p class="text-center text-muted"><time datetime="{{ .PublishDate.Format `2006-01-02` }}">{{ .PublishDate.Format "January 2, 2006" }}</time></p>
 {{ end }}
 {{ if .Content }}
-{{ .Content }}
+{{ .Content | replaceRE `(<h[1-9] id="([^"]+)".+)(</h[1-9]+>)` `${1}<a class="headerlink" href="#${2}"><i class="bi bi-link-45deg small"></i></a>${3}` | safeHTML }}
 {{ end }}
diff --git a/layouts/partials/paige_style.html b/layouts/partials/paige_style.html
index ce8f2ab7..eb09ee82 100644
--- a/layouts/partials/paige_style.html
+++ b/layouts/partials/paige_style.html
@@ -12,4 +12,13 @@
     blockquote p:last-of-type {
         margin-bottom: 0;
     }
+
+    .headerlink {
+        display: none;
+        margin-left: 0.25rem;
+    }
+
+    h1:hover .headerlink, h2:hover .headerlink, h3:hover .headerlink, h4:hover .headerlink, h5:hover .headerlink, h6:hover .headerlink {
+        display: inline;
+    }
 </style>