From 53481accf13cbb6227d12e98542b0f314b2a586e Mon Sep 17 00:00:00 2001
From: ibrokemypie <ibrokemypie@bastardi.net>
Date: Sun, 20 Jan 2019 20:00:55 +1100
Subject: Add double underscore syntax for bold markdown (#3733)

* Add double underscore syntax for bold markdown
see https://github.com/syuilo/misskey/pull/3732
this allows bold text through either **text** or __text__

* Add tests for underscore bold mfm syntax
---
 src/mfm/parser.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/mfm/parser.ts b/src/mfm/parser.ts
index 2ab38d97a8..c271b62e23 100644
--- a/src/mfm/parser.ts
+++ b/src/mfm/parser.ts
@@ -154,7 +154,7 @@ const mfm = P.createLanguage({
 
 	//#region Bold
 	bold: r =>
-		P.regexp(/\*\*([\s\S]+?)\*\*/, 1)
+		P.regexp(/(\*\*|__)([\s\S]+?)\1/, 2)
 		.map(x => createTree('bold', P.alt(
 			r.strike,
 			r.italic,
-- 
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