From a260c8414c34a259a70a20ebcd20ecbb06c3d250 Mon Sep 17 00:00:00 2001
From: Roman Hotsiy <gotsijroman@gmail.com>
Date: Fri, 10 Jan 2020 15:18:32 +0200
Subject: [PATCH] fix: fix duplicated content in tags when using md headings

fixes #1150, fixes #1152
---
 src/services/MarkdownRenderer.ts | 2 +-
 src/services/MenuBuilder.ts      | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/services/MarkdownRenderer.ts b/src/services/MarkdownRenderer.ts
index f551f84c76..9276a09659 100644
--- a/src/services/MarkdownRenderer.ts
+++ b/src/services/MarkdownRenderer.ts
@@ -46,7 +46,7 @@ export class MarkdownRenderer {
   }
 
   static getTextBeforeHading(md: string, heading: string): string {
-    const headingLinePos = md.search(new RegExp(`^##?\s+${heading}`, 'm'));
+    const headingLinePos = md.search(new RegExp(`^##?\\s+${heading}`, 'm'));
     if (headingLinePos > -1) {
       return md.substring(0, headingLinePos);
     }
diff --git a/src/services/MenuBuilder.ts b/src/services/MenuBuilder.ts
index c5305d5878..f61f61890a 100644
--- a/src/services/MenuBuilder.ts
+++ b/src/services/MenuBuilder.ts
@@ -66,6 +66,13 @@ export class MenuBuilder {
     const renderer = new MarkdownRenderer(options);
     const headings = renderer.extractHeadings(description || '');
 
+    if (headings.length && parent && parent.description) {
+      parent.description = MarkdownRenderer.getTextBeforeHading(
+        parent.description,
+        headings[0].name,
+      );
+    }
+
     const mapHeadingsDeep = (_parent, items, depth = 1) =>
       items.map(heading => {
         const group = new GroupModel('section', heading, _parent);