3 files changed, 26 insertions, 3 deletions
diff --git a/src/mfm/parse/elements/big.ts b/src/mfm/parse/elements/big.ts
index ca798986e9..8e39c75a55 100644
--- a/src/mfm/parse/elements/big.ts
+++ b/src/mfm/parse/elements/big.ts
@@ -1,5 +1,5 @@
 /**
- * Bold
+ * Big
  */
 
 export type TextElementBig = {
diff --git a/src/mfm/parse/elements/motion.ts b/src/mfm/parse/elements/motion.ts
new file mode 100644
index 0000000000..555a989750
--- /dev/null
+++ b/src/mfm/parse/elements/motion.ts
@@ -0,0 +1,20 @@
+/**
+ * Motion
+ */
+
+export type TextElementMotion = {
+	type: 'motion'
+	content: string
+	motion: string
+};
+
+export default function(text: string) {
+	const match = text.match(/^\(\(\((.+?)\)\)\)/);
+	if (!match) return null;
+	const motion = match[0];
+	return {
+		type: 'motion',
+		content: motion,
+		motion: match[1]
+	} as TextElementMotion;
+}
diff --git a/src/mfm/parse/index.ts b/src/mfm/parse/index.ts
index 066c062559..99c00ae649 100644
--- a/src/mfm/parse/index.ts
+++ b/src/mfm/parse/index.ts
@@ -14,6 +14,7 @@ import { TextElementQuote } from './elements/quote';
 import { TextElementSearch } from './elements/search';
 import { TextElementTitle } from './elements/title';
 import { TextElementUrl } from './elements/url';
+import { TextElementMotion } from './elements/motion';
 
 const elements = [
 	require('./elements/big'),
@@ -27,7 +28,8 @@ const elements = [
 	require('./elements/inline-code'),
 	require('./elements/quote'),
 	require('./elements/emoji'),
-	require('./elements/search')
+	require('./elements/search'),
+	require('./elements/motion')
 ].map(element => element.default as TextElementProcessor);
 
 export type TextElement = { type: 'text', content: string }
@@ -42,7 +44,8 @@ export type TextElement = { type: 'text', content: string }
 	| TextElementQuote
 	| TextElementSearch
 	| TextElementTitle
-	| TextElementUrl;
+	| TextElementUrl
+	| TextElementMotion;
 export type TextElementProcessor = (text: string, i: number) => TextElement | TextElement[];
 
 export default (source: string): TextElement[] => {