From c58027e5217c72a6c936aa27b4b02f0ff7f5bbda Mon Sep 17 00:00:00 2001
From: syuilo <syuilotan@yahoo.co.jp>
Date: Sun, 2 Dec 2018 06:53:57 +0900
Subject: [MFM] Better hashtag detection

---
 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 467097d4f1..3e77d56435 100644
--- a/src/mfm/parser.ts
+++ b/src/mfm/parser.ts
@@ -162,7 +162,7 @@ const mfm = P.createLanguage({
 			let hashtag = match[1];
 			hashtag = hashtag.substr(0, getTrailingPosition(hashtag));
 			if (hashtag.match(/^[0-9]+$/)) return P.makeFailure(i, 'not a hashtag');
-			if (!['\n', ' ', '　', '(', '「', null, undefined].includes(input[i - 1])) return P.makeFailure(i, 'require space before "#"');
+			if (input[i - 1] != null && input[i - 1].match(/[a-z0-9]/i)) return P.makeFailure(i, 'not a hashtag');
 			return P.makeSuccess(i + ('#' + hashtag).length, makeNode('hashtag', { hashtag: hashtag }));
 		}),
 	//#endregion
-- 
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