From 66836836ab181623bd86ad71aa2acf226253d481 Mon Sep 17 00:00:00 2001
From: Aya Morisawa <AyaMorisawa4869@gmail.com>
Date: Wed, 5 Dec 2018 20:11:54 +0900
Subject: Add small syntax (#3506)

---
 src/client/app/common/views/components/mfm.ts |  4 ++++
 src/mfm/html.ts                               |  6 ++++++
 src/mfm/parser.ts                             | 19 +++++++++++++++++++
 3 files changed, 29 insertions(+)

(limited to 'src')

diff --git a/src/client/app/common/views/components/mfm.ts b/src/client/app/common/views/components/mfm.ts
index 9502d64d82..accacf150c 100644
--- a/src/client/app/common/views/components/mfm.ts
+++ b/src/client/app/common/views/components/mfm.ts
@@ -123,6 +123,10 @@ export default Vue.component('misskey-flavored-markdown', {
 					}, genEl(token.children));
 				}
 
+				case 'small': {
+					return [createElement('small', genEl(token.children))];
+				}
+
 				case 'center': {
 					return [createElement('div', {
 						attrs: {
diff --git a/src/mfm/html.ts b/src/mfm/html.ts
index b01c5ad318..a08666646d 100644
--- a/src/mfm/html.ts
+++ b/src/mfm/html.ts
@@ -31,6 +31,12 @@ export default (tokens: Node[], mentionedRemoteUsers: INote['mentionedRemoteUser
 			return el;
 		},
 
+		small(token) {
+			const el = doc.createElement('small');
+			dive(token.children).forEach(child => el.appendChild(child));
+			return el;
+		},
+
 		strike(token) {
 			const el = doc.createElement('del');
 			dive(token.children).forEach(child => el.appendChild(child));
diff --git a/src/mfm/parser.ts b/src/mfm/parser.ts
index 0aec60f823..9a1264220b 100644
--- a/src/mfm/parser.ts
+++ b/src/mfm/parser.ts
@@ -67,6 +67,7 @@ const newline = P((input, i) => {
 const mfm = P.createLanguage({
 	root: r => P.alt(
 		r.big,
+		r.small,
 		r.bold,
 		r.strike,
 		r.italic,
@@ -102,6 +103,20 @@ const mfm = P.createLanguage({
 		).atLeast(1).tryParse(x))),
 	//#endregion
 
+	//#region Small
+	small: r =>
+		P.regexp(/<small>([\s\S]+?)<\/small>/, 1)
+		.map(x => makeNodeWithChildren('small', P.alt(
+			r.strike,
+			r.italic,
+			r.mention,
+			r.hashtag,
+			r.emoji,
+			r.math,
+			r.text
+		).atLeast(1).tryParse(x))),
+	//#endregion
+
 	//#region Block code
 	blockCode: r =>
 		newline.then(
@@ -134,6 +149,7 @@ const mfm = P.createLanguage({
 		P.regexp(/<center>([\s\S]+?)<\/center>/, 1)
 		.map(x => makeNodeWithChildren('center', P.alt(
 			r.big,
+			r.small,
 			r.bold,
 			r.strike,
 			r.italic,
@@ -211,6 +227,7 @@ const mfm = P.createLanguage({
 		.map((x: any) => {
 			return makeNodeWithChildren('link', P.alt(
 				r.big,
+				r.small,
 				r.bold,
 				r.strike,
 				r.italic,
@@ -253,6 +270,7 @@ const mfm = P.createLanguage({
 		P.alt(P.regexp(/\(\(\(([\s\S]+?)\)\)\)/, 1), P.regexp(/<motion>(.+?)<\/motion>/, 1))
 		.map(x => makeNodeWithChildren('motion', P.alt(
 			r.bold,
+			r.small,
 			r.strike,
 			r.italic,
 			r.mention,
@@ -312,6 +330,7 @@ const mfm = P.createLanguage({
 			const q = match[1].trim().substring(1, match[1].length - 1);
 			const contents = P.alt(
 				r.big,
+				r.small,
 				r.bold,
 				r.strike,
 				r.italic,
-- 
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