From 9df7ecad8e52e55b4417701b6db08d13e04cf0e6 Mon Sep 17 00:00:00 2001
From: Ellpeck <me@ellpeck.de>
Date: Tue, 6 Apr 2021 19:29:04 +0200
Subject: [PATCH] fixed book headings being reduced in blog posts

---
 node/blog.js |  2 +-
 node/rss.js  |  2 +-
 node/util.js | 14 ++++++++------
 3 files changed, 10 insertions(+), 8 deletions(-)

diff --git a/node/blog.js b/node/blog.js
index 099a3e9..7fa77ef 100644
--- a/node/blog.js
+++ b/node/blog.js
@@ -50,7 +50,7 @@ fs.readFile(`${folder}index.html`, function (_, html) {
                 let content;
                 if (post.book) {
                     document.head.innerHTML += /*html*/ `<link rel="stylesheet" href="../style/book.css">`;
-                    content = util.extractBookData(file, post);
+                    content = util.extractBookData(file, post, true);
                 } else {
                     content = converter.makeHtml(file.toString());
                 }
diff --git a/node/rss.js b/node/rss.js
index d6e9efc..b61b5db 100644
--- a/node/rss.js
+++ b/node/rss.js
@@ -43,7 +43,7 @@ function createFeed(callback) {
             const index = i;
             let extension = post.book ? "html" : "md";
             fs.readFile(`${__dirname}/../blog/src/${post.id}.${extension}`, function (_, file) {
-                let content = post.book ? util.extractBookData(file, post) : converter.makeHtml(file.toString());
+                let content = post.book ? util.extractBookData(file, post, false) : converter.makeHtml(file.toString());
                 feed.addItem({
                     title: `${post.name}${post.archived ? " (Archived)" : ""}`,
                     link: `https://ellpeck.de/blog/${post.id}`,
diff --git a/node/util.js b/node/util.js
index 1def6a4..3ed0b15 100644
--- a/node/util.js
+++ b/node/util.js
@@ -13,18 +13,20 @@ exports.showdown = function (headerLevel) {
     });
 };
 
-exports.extractBookData = function (file, post) {
+exports.extractBookData = function (file, post, reduceHeadings) {
     let html = new JSDOM(file);
     let page = html.window.document.getElementById("page");
     // remove header section
     let header = page.getElementsByTagName("header");
     while (header.length > 0)
         header[0].parentNode.removeChild(header[0]);
-    // reduce all headings by 1
-    for (let h = 5; h >= 1; h--) {
-        let heading = page.getElementsByTagName(`h${h}`);
-        while (heading.length > 0)
-            this.changeTag(heading[0], `h${h+1}`);
+    if (reduceHeadings) {
+        // reduce all headings by 1
+        for (let h = 5; h >= 1; h--) {
+            let heading = page.getElementsByTagName(`h${h}`);
+            while (heading.length > 0)
+                this.changeTag(heading[0], `h${h+1}`);
+        }
     }
 
     return /*html*/ `