U+FE0Fなどを空文字として返すように

ikasoba · Dec 26, 2023 · d5dfdd3 · d5dfdd3
1 parent 6aaf680
commit d5dfdd3
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Showing 2 changed files with 10 additions and 1 deletion.
diff --git a/src/internal/parser.ts b/src/internal/parser.ts
@@ -420,7 +420,10 @@ export const language = P.createLanguage({
 
 	unicodeEmoji: r => {
 		const emoji = RegExp(twemojiRegex.source);
-		return P.regexp(emoji).map(content => M.UNI_EMOJI(content));
+		return P.regexp(emoji).map(content => {
+			// 異体字セレクタのみの場合は空文字として返す
+			return /^[\uFE00-\uFE0F]+$/u.test(content) ? M.TEXT('') : M.UNI_EMOJI(content);
+		});
 	},
 
 	plainTag: r => {

diff --git a/test/parser.ts b/test/parser.ts
@@ -49,6 +49,12 @@ describe('SimpleParser', () => {
 			const output = [TEXT('あ'), EMOJI_CODE('bar'), TEXT('い')];
 			assert.deepStrictEqual(mfm.parseSimple(input), output);
 		});
+
+		test('U+FE0F', () => {
+			const input = '\uFE0F';
+			const output = [TEXT('')];
+			assert.deepStrictEqual(mfm.parseSimple(input), output);
+		})
 	});
 
 	test('disallow other syntaxes', () => {