9 files changed, 145 insertions, 0 deletions
diff --git a/src/server/api/common/text/elements/bold.ts b/src/server/api/common/text/elements/bold.ts
new file mode 100644
index 0000000000..ce25764457
--- /dev/null
+++ b/src/server/api/common/text/elements/bold.ts
@@ -0,0 +1,14 @@
+/**
+ * Bold
+ */
+
+module.exports = text => {
+	const match = text.match(/^\*\*(.+?)\*\*/);
+	if (!match) return null;
+	const bold = match[0];
+	return {
+		type: 'bold',
+		content: bold,
+		bold: bold.substr(2, bold.length - 4)
+	};
+};
diff --git a/src/server/api/common/text/elements/code.ts b/src/server/api/common/text/elements/code.ts
new file mode 100644
index 0000000000..4821e95fe2
--- /dev/null
+++ b/src/server/api/common/text/elements/code.ts
@@ -0,0 +1,17 @@
+/**
+ * Code (block)
+ */
+
+import genHtml from '../core/syntax-highlighter';
+
+module.exports = text => {
+	const match = text.match(/^```([\s\S]+?)```/);
+	if (!match) return null;
+	const code = match[0];
+	return {
+		type: 'code',
+		content: code,
+		code: code.substr(3, code.length - 6).trim(),
+		html: genHtml(code.substr(3, code.length - 6).trim())
+	};
+};
diff --git a/src/server/api/common/text/elements/emoji.ts b/src/server/api/common/text/elements/emoji.ts
new file mode 100644
index 0000000000..e24231a223
--- /dev/null
+++ b/src/server/api/common/text/elements/emoji.ts
@@ -0,0 +1,14 @@
+/**
+ * Emoji
+ */
+
+module.exports = text => {
+	const match = text.match(/^:[a-zA-Z0-9+-_]+:/);
+	if (!match) return null;
+	const emoji = match[0];
+	return {
+		type: 'emoji',
+		content: emoji,
+		emoji: emoji.substr(1, emoji.length - 2)
+	};
+};
diff --git a/src/server/api/common/text/elements/hashtag.ts b/src/server/api/common/text/elements/hashtag.ts
new file mode 100644
index 0000000000..ee57b140b8
--- /dev/null
+++ b/src/server/api/common/text/elements/hashtag.ts
@@ -0,0 +1,19 @@
+/**
+ * Hashtag
+ */
+
+module.exports = (text, i) => {
+	if (!(/^\s#[^\s]+/.test(text) || (i == 0 && /^#[^\s]+/.test(text)))) return null;
+	const isHead = text[0] == '#';
+	const hashtag = text.match(/^\s?#[^\s]+/)[0];
+	const res: any[] = !isHead ? [{
+		type: 'text',
+		content: text[0]
+	}] : [];
+	res.push({
+		type: 'hashtag',
+		content: isHead ? hashtag : hashtag.substr(1),
+		hashtag: isHead ? hashtag.substr(1) : hashtag.substr(2)
+	});
+	return res;
+};
diff --git a/src/server/api/common/text/elements/inline-code.ts b/src/server/api/common/text/elements/inline-code.ts
new file mode 100644
index 0000000000..9f9ef51a2b
--- /dev/null
+++ b/src/server/api/common/text/elements/inline-code.ts
@@ -0,0 +1,17 @@
+/**
+ * Code (inline)
+ */
+
+import genHtml from '../core/syntax-highlighter';
+
+module.exports = text => {
+	const match = text.match(/^`(.+?)`/);
+	if (!match) return null;
+	const code = match[0];
+	return {
+		type: 'inline-code',
+		content: code,
+		code: code.substr(1, code.length - 2).trim(),
+		html: genHtml(code.substr(1, code.length - 2).trim())
+	};
+};
diff --git a/src/server/api/common/text/elements/link.ts b/src/server/api/common/text/elements/link.ts
new file mode 100644
index 0000000000..35563ddc3d
--- /dev/null
+++ b/src/server/api/common/text/elements/link.ts
@@ -0,0 +1,19 @@
+/**
+ * Link
+ */
+
+module.exports = text => {
+	const match = text.match(/^\??\[([^\[\]]+?)\]\((https?:\/\/[\w\/:%#@\$&\?!\(\)\[\]~\.=\+\-]+?)\)/);
+	if (!match) return null;
+	const silent = text[0] == '?';
+	const link = match[0];
+	const title = match[1];
+	const url = match[2];
+	return {
+		type: 'link',
+		content: link,
+		title: title,
+		url: url,
+		silent: silent
+	};
+};
diff --git a/src/server/api/common/text/elements/mention.ts b/src/server/api/common/text/elements/mention.ts
new file mode 100644
index 0000000000..2025dfdaad
--- /dev/null
+++ b/src/server/api/common/text/elements/mention.ts
@@ -0,0 +1,17 @@
+/**
+ * Mention
+ */
+import parseAcct from '../../../../common/user/parse-acct';
+
+module.exports = text => {
+	const match = text.match(/^(?:@[a-zA-Z0-9\-]+){1,2}/);
+	if (!match) return null;
+	const mention = match[0];
+	const { username, host } = parseAcct(mention.substr(1));
+	return {
+		type: 'mention',
+		content: mention,
+		username,
+		host
+	};
+};
diff --git a/src/server/api/common/text/elements/quote.ts b/src/server/api/common/text/elements/quote.ts
new file mode 100644
index 0000000000..cc8cfffdc4
--- /dev/null
+++ b/src/server/api/common/text/elements/quote.ts
@@ -0,0 +1,14 @@
+/**
+ * Quoted text
+ */
+
+module.exports = text => {
+	const match = text.match(/^"([\s\S]+?)\n"/);
+	if (!match) return null;
+	const quote = match[0];
+	return {
+		type: 'quote',
+		content: quote,
+		quote: quote.substr(1, quote.length - 2).trim(),
+	};
+};
diff --git a/src/server/api/common/text/elements/url.ts b/src/server/api/common/text/elements/url.ts
new file mode 100644
index 0000000000..1003aff9c3
--- /dev/null
+++ b/src/server/api/common/text/elements/url.ts
@@ -0,0 +1,14 @@
+/**
+ * URL
+ */
+
+module.exports = text => {
+	const match = text.match(/^https?:\/\/[\w\/:%#@\$&\?!\(\)\[\]~\.=\+\-]+/);
+	if (!match) return null;
+	const url = match[0];
+	return {
+		type: 'url',
+		content: url,
+		url: url
+	};
+};