From 43885e6d0bdc0717c7f3a05e9d49ef06941cc177 Mon Sep 17 00:00:00 2001
From: Hans Blankenhaus <blank@example.com>
Date: Mon, 18 Sep 2023 15:58:57 +0200
Subject: [PATCH] make auto wrapping in markdown optional

---
 packages/mermaid/src/config.type.ts                       | 1 +
 .../mermaid/src/rendering-util/handle-markdown-text.ts    | 8 +++++++-
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/packages/mermaid/src/config.type.ts b/packages/mermaid/src/config.type.ts
index ca55d9af4..017410dce 100644
--- a/packages/mermaid/src/config.type.ts
+++ b/packages/mermaid/src/config.type.ts
@@ -139,6 +139,7 @@ export interface MermaidConfig {
    * You can set this attribute to base the seed on a static string.
    *
    */
+  markdownAutoWrap?: boolean;
   deterministicIDSeed?: string;
   flowchart?: FlowchartDiagramConfig;
   sequence?: SequenceDiagramConfig;
diff --git a/packages/mermaid/src/rendering-util/handle-markdown-text.ts b/packages/mermaid/src/rendering-util/handle-markdown-text.ts
index ce694edcd..e5e171285 100644
--- a/packages/mermaid/src/rendering-util/handle-markdown-text.ts
+++ b/packages/mermaid/src/rendering-util/handle-markdown-text.ts
@@ -2,6 +2,7 @@ import type { Content } from 'mdast';
 import { fromMarkdown } from 'mdast-util-from-markdown';
 import { dedent } from 'ts-dedent';
 import type { MarkdownLine, MarkdownWordType } from './types.js';
+import { getConfig } from '../config.js';
 
 /**
  * @param markdown - markdown to process
@@ -58,10 +59,15 @@ export function markdownToLines(markdown: string): MarkdownLine[] {
 
 export function markdownToHTML(markdown: string) {
   const { children } = fromMarkdown(markdown);
+  const markdownAutoWrap = getConfig().markdownAutoWrap;
 
   function output(node: Content): string {
     if (node.type === 'text') {
-      return node.value.replace(/\n/g, '<br/>');
+      if (!markdownAutoWrap) {
+        return node.value.replace(/\n/g, '<br/>').replace(/ /g, '&nbsp;');
+      } else {
+        return node.value.replace(/\n/g, '<br/>');
+      }
     } else if (node.type === 'strong') {
       return `<strong>${node.children.map(output).join('')}</strong>`;
     } else if (node.type === 'emphasis') {