From dbb9b40ebb8f81b51b3301514279d927767b6710 Mon Sep 17 00:00:00 2001
From: Alexander Zinchuk <alx.zinchuk@gmail.com>
Date: Thu, 27 Apr 2023 01:46:22 +0400
Subject: [PATCH] Markdown: Remove boundary check when parsing entities (#3088)

---
 src/util/parseMessageInput.ts | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/src/util/parseMessageInput.ts b/src/util/parseMessageInput.ts
index 68845dec3..90fe7058e 100644
--- a/src/util/parseMessageInput.ts
+++ b/src/util/parseMessageInput.ts
@@ -114,20 +114,20 @@ function parseMarkdown(html: string) {
 
   // Other simple markdown
   parsedHtml = parsedHtml.replace(
-    /(^|\s)(?!<(code|pre)[^<]*|<\/)[*]{2}([^*\n]+)[*]{2}(?![^<]*<\/(code|pre)>)(\s|$)/g,
-    '$1<b>$3</b>$5',
+    /(?!<(code|pre)[^<]*|<\/)[*]{2}([^*\n]+)[*]{2}(?![^<]*<\/(code|pre)>)/g,
+    '<b>$2</b>',
   );
   parsedHtml = parsedHtml.replace(
-    /(^|\s)(?!<(code|pre)[^<]*|<\/)[_]{2}([^_\n]+)[_]{2}(?![^<]*<\/(code|pre)>)(\s|$)/g,
-    '$1<i>$3</i>$5',
+    /(?!<(code|pre)[^<]*|<\/)[_]{2}([^_\n]+)[_]{2}(?![^<]*<\/(code|pre)>)/g,
+    '<i>$2</i>',
   );
   parsedHtml = parsedHtml.replace(
-    /(^|\s)(?!<(code|pre)[^<]*|<\/)[~]{2}([^~\n]+)[~]{2}(?![^<]*<\/(code|pre)>)(\s|$)/g,
-    '$1<s>$3</s>$5',
+    /(?!<(code|pre)[^<]*|<\/)[~]{2}([^~\n]+)[~]{2}(?![^<]*<\/(code|pre)>)/g,
+    '<s>$2</s>',
   );
   parsedHtml = parsedHtml.replace(
-    /(^|\s)(?!<(code|pre)[^<]*|<\/)[|]{2}([^|\n]+)[|]{2}(?![^<]*<\/(code|pre)>)(\s|$)/g,
-    `$1<span data-entity-type="${ApiMessageEntityTypes.Spoiler}">$3</span>$5`,
+    /(?!<(code|pre)[^<]*|<\/)[|]{2}([^|\n]+)[|]{2}(?![^<]*<\/(code|pre)>)/g,
+    `<span data-entity-type="${ApiMessageEntityTypes.Spoiler}">$2</span>`,
   );
 
   return parsedHtml;