Link support

markdown.js

@@ -170,7 +170,6 @@ class OrderedListItem extends Symbol {
     return `<li class="indent-${this.level}">${this.text} indentation level ${this.level}</li>`;
   }
 }
-
 class Link extends Symbol {
   /**
    * @type {RegExp}
@@ -205,8 +204,9 @@ class Link extends Symbol {
   static create(lineFeed) {
     const instance = new Link();
     const line = lineFeed.claim().trim();
-    const { text, link } = Link.textAndLinkRegExp.exec(line)?.groups ?? {};
-    console.log("test:", text, link);
+    const [linkLine, rest] = extractTokenAndRest(Link.textAndLinkRegExp, line);
+    lineFeed.push(rest);
+    const { text, link } = Link.textAndLinkRegExp.exec(linkLine)?.groups ?? {};
     instance.link = link ?? "";
     instance.text = text ?? "";
     return instance;
@@ -459,13 +459,50 @@ class CatchAll extends Symbol {
 
 /**
  *
- * @param {string} token
+ * @param {string|RexExp} token
  * @param {string} string
  * @returns {string[]}
  */
 const splitStringAtToken = (token, string) => {
-  const index = string.indexOf(token);
-  return [string.slice(0, index), string.slice(index + token.length)];
+  let index = 0;
+  let length = 0;
+  if (typeof token?.exec === "function") {
+    const exp = new RegExp(token);
+    const match = exp.exec(string);
+    index = match?.index ?? -1;
+    length = match?.[0].length ?? 0;
+  } else {
+    index = string.indexOf(token);
+    length = token.length;
+  }
+
+  const splitTokenNotFound = index === -1;
+  if (splitTokenNotFound) return [string, ""];
+  return [string.slice(0, index), string.slice(index + length)];
+};
+
+/**
+ *
+ * @param {string|RexExp} token
+ * @param {string} string
+ * @returns {string[]}
+ */
+const extractTokenAndRest = (token, string) => {
+  let index = 0;
+  let length = 0;
+  if (typeof token?.exec === "function") {
+    const exp = new RegExp(token);
+    const match = exp.exec(string);
+    index = match?.index ?? -1;
+    length = match?.[0].length ?? 0;
+  } else {
+    index = string.indexOf(token);
+    length = token.length;
+  }
+
+  const splitTokenNotFound = index === -1;
+  if (splitTokenNotFound) return [string, ""];
+  return [string.slice(0, index + length), string.slice(index + length)];
 };
 
 /**