Add emoji support & render markdown in embeds

webpage/markdown.ts

@@ -360,6 +360,42 @@ function markdown(text : string|string[],{keep=false,stdsize=false} = {}){
             }
         }
 
+        if (txt[i] == "<" && txt[i + 1] == ":") {
+            let found=false;
+            const build=["<", ":"];
+            let j=i + 2;
+            for (; txt[j] !== void 0; j++) {
+                build.push(txt[j]);
+
+                if (txt[j] == ">") {
+                    found=true;
+                    break;
+                }
+            }
+
+            if (found) {
+                const parts=build.join("").match(/^<:\w+:(\d{10,30})>$/);
+                if (parts && parts[1]) {
+                    appendcurrent();
+                    i=j;
+
+                    const isEmojiOnly = txt.join("").trim()===build.join("").trim();
+
+                    const emojiElem=document.createElement("img");
+                    emojiElem.classList.add("md-emoji");
+                    emojiElem.width=isEmojiOnly ? 48 : 22;
+                    emojiElem.height=isEmojiOnly ? 48 : 22;
+                    emojiElem.crossOrigin="anonymous";
+                    emojiElem.src=this.info.cdn.toString() + "/emojis/" + parts[1] + ".png?size=32";
+                    emojiElem.alt="";
+                    emojiElem.loading="lazy";
+                    span.appendChild(emojiElem);
+
+                    continue;
+                }
+            }
+        }
+
         current.textContent+=txt[i];
     }
     appendcurrent();