From c00cd848a1f555950cf4bcd8b863ed2c494ae236 Mon Sep 17 00:00:00 2001
From: Thom Smith <thom@thomthesmith.com>
Date: Tue, 8 Feb 2022 16:02:47 -0500
Subject: [PATCH] Link headings to enclosing sections

---
 spec/1.3.0/bin/lib/transformations.py | 12 ++++++++++++
 www/main/spec.scss                    | 10 ++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/spec/1.3.0/bin/lib/transformations.py b/spec/1.3.0/bin/lib/transformations.py
index e8ae08db..1b00b2eb 100644
--- a/spec/1.3.0/bin/lib/transformations.py
+++ b/spec/1.3.0/bin/lib/transformations.py
@@ -99,6 +99,8 @@ def transform(soup, links):
 
     toc_header.parent.insert_after(toc)
 
+    link_headings(soup)
+
     create_internal_links(soup, link_index)
 
     check_for_duplicate_ids(soup)
@@ -207,6 +209,16 @@ def number_figures(soup):
                 replace(figure_heading, HEADING_NUMBER_EXPR, '.'.join([chapter, str(i)]))
 
 
+def link_headings(soup):
+    for heading in soup.find_all(['h1', 'h2', 'h3', 'h4', 'h5', 'h6']):
+        section = heading.find_parent('section')
+        if section is not None:
+            anchor = section.attrs.get('id', None)
+            if anchor is not None:
+                a = tag('a', [ch.extract() for ch in list(heading.children)], href='#'+anchor)
+                heading.append(a)
+
+
 PRODUCTION_EXPR = re.compile(r'''
     (?P<comment>\#.*) |
     \b(?P<name>
diff --git a/www/main/spec.scss b/www/main/spec.scss
index 5ef60b1f..3ab27f11 100644
--- a/www/main/spec.scss
+++ b/www/main/spec.scss
@@ -12,11 +12,17 @@ body.status-draft {
 
 a {
   color: inherit;
-  text-decoration: underline solid $theme-color;
+  text-decoration: underline solid currentcolor;
 
   &:hover {
     color: blue;
-    text-decoration: underline solid blue;
+  }
+}
+
+h1, h2, h3, h4, h5, h6 {
+  position: relative;
+  a {
+    text-decoration: none;
   }
 }