From 8bf3f95995d0fad6bb1fe0bfa18369d98100ed0b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9C=D0=B0=D0=BA=D1=81=D0=B8=D0=BC=20=D0=A2=D1=80=D0=B0?=
 =?UTF-8?q?=D0=B2=D0=B8=D0=BD=D1=86=D0=B5=D0=B2?= <smsochneg@yandex-team.ru>
Date: Fri, 26 Apr 2024 16:31:30 +0200
Subject: [PATCH] fix: preserve space at the end of diagram code when parsing

---
 src/runtime/index.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/runtime/index.ts b/src/runtime/index.ts
index 7c89c06..b999f6b 100644
--- a/src/runtime/index.ts
+++ b/src/runtime/index.ts
@@ -44,9 +44,15 @@ async function next(): Promise<void> {
 
                 for (const element of nodesList) {
                     const id = `mermaid-${Date.now()}`;
-                    const content = element.getAttribute('data-content') || '';
-                    const text = dedent(decodeURIComponent(content))
-                        .trim()
+                    const content = decodeURIComponent(element.getAttribute('data-content') || '');
+                    let dedentedContent = dedent(content);
+
+                    if (content.replace(/\n*$/, '').endsWith(' ')) {
+                        dedentedContent += ' ';
+                    }
+
+                    const text = dedentedContent
+                        .trimStart()
                         .replace(/<br\s*\/?>/gi, '<br/>');
 
                     const {svg, bindFunctions} = await mermaid.render(id, text, element);