add mentions

client/comment.js

@@ -5,14 +5,37 @@ import initDb from "../db.js";
 let db = await initDb();
 
 let main = new Route([auth], async function (req, res, input) {
-    let {route} = req.params;
-    let {id} = req.query;
+    let { route } = req.params;
+    let { id } = req.query;
 
     let comments = await db.all('SELECT * FROM comment WHERE targetType = ? AND targetId = ? ORDER BY date DESC', [
         route,
         id
     ]);
 
+    for (let comment of comments) {
+        let { content } = comment;
+        content = content.replace(/&/g, '&')
+            .replace(/</g, '&lt;')
+            .replace(/>/g, '&gt;')
+            .replace(/"/g, '&quot;')
+            .replace(/'/g, '&#039;');
+
+        content = content.split(' ');
+
+        for (let elem in content) {
+            let e = content[elem];
+            if (e.startsWith('@')) {
+                let f = e.slice(1);
+                content[elem] = `<a class='link' href='/client/user?id=${f}'>${e}</a>`
+            }
+        }
+
+        content = content.join(' ');
+    
+        comment.content = content;
+    }
+
     return {
         ...input,
         route,