From 19907beb6d876ea3bced83e7767d77295c6cf136 Mon Sep 17 00:00:00 2001
From: Steve Glaser <sglaser@nvidia.com>
Date: Mon, 24 Feb 2020 21:58:07 -0800
Subject: [PATCH 1/2] Support formatting of sections nested above h6, correct
 nesting level

Computation of nesting level assumed single digit / character section numbers.

Headers deeper than h6 will be of form <h6 class="h7">
---
 src/core/structure.js | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/core/structure.js b/src/core/structure.js
index 13a9145bf0..91c8df3bb2 100644
--- a/src/core/structure.js
+++ b/src/core/structure.js
@@ -76,7 +76,7 @@ function scanSections(sections, maxTocLevel, { prefix = "" } = {}) {
       : appendixMode
       ? alphabet.charAt(index - lastNonAppendix)
       : prefix + index;
-    const level = Math.ceil(secno.length / 2);
+    const level = parents(section.element, "section").length + 1;
     if (level === 1) {
       secno += ".";
       // if this is a top level item, insert
@@ -202,11 +202,18 @@ function renameSectionHeaders() {
     return;
   }
   headers.forEach(header => {
-    const depth = Math.min(parents(header, "section").length + 1, 6);
-    const h = `h${depth}`;
+    const depth = parents(header, "section").length + 1;
+    const h = `h${Math.min(depth, 6)}`;
     if (header.localName !== h) {
       renameElement(header, h);
     }
+    if (depth > 6) {
+      if (header.classList) {
+        header.classList.add(`h${depth}`);
+      } else {
+        header.className = `h${depth}`;
+      }
+    }
   });
 }
 

From 372f175ff1ee9d62ab439650936855767d28fd32 Mon Sep 17 00:00:00 2001
From: Steve Glaser <sglaser@nvidia.com>
Date: Tue, 25 Feb 2020 08:17:17 -0800
Subject: [PATCH 2/2] Remove unnecessary check on empty classList

---
 src/core/structure.js | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/src/core/structure.js b/src/core/structure.js
index 91c8df3bb2..300c3301e6 100644
--- a/src/core/structure.js
+++ b/src/core/structure.js
@@ -208,11 +208,7 @@ function renameSectionHeaders() {
       renameElement(header, h);
     }
     if (depth > 6) {
-      if (header.classList) {
-        header.classList.add(`h${depth}`);
-      } else {
-        header.className = `h${depth}`;
-      }
+      header.classList.add(`h${depth}`);
     }
   });
 }