WIP Links

markdown.js

@@ -99,6 +99,124 @@ class Heading extends Symbol {
   }
 }
 
+class UnorderedListItem extends Symbol {
+  /**
+   * @type {string}
+   */
+  text = "";
+  /**
+   * @type {number}
+   */
+  level = 0;
+  /**
+   *
+   * @param {string} line
+   * @returns {boolean}
+   */
+  static canParse(line) {
+    return line.trim().startsWith("- ");
+  }
+
+  /**
+   *
+   * @param {LineFeed} lineFeed
+   * @returns {Symbol}
+   */
+  static create(lineFeed) {
+    const instance = new UnorderedListItem();
+    const line = lineFeed.claim();
+    instance.text = line.replaceAll("-", "").trim();
+    instance.level = getAmountOfTokenInBeginningOfFile("  ", line);
+    return instance;
+  }
+
+  render() {
+    return `<li class="indent-${this.level}">${this.text} indentation level ${this.level}</li>`;
+  }
+}
+
+class OrderedListItem extends Symbol {
+  /**
+   * @type {string}
+   */
+  text = "";
+  /**
+   * @type {number}
+   */
+  level = 0;
+  /**
+   *
+   * @param {string} line
+   * @returns {boolean}
+   */
+  static canParse(line) {
+    return new RegExp(/^\d\. /).test(line.trim());
+  }
+
+  /**
+   *
+   * @param {LineFeed} lineFeed
+   * @returns {Symbol}
+   */
+  static create(lineFeed) {
+    const instance = new UnorderedListItem();
+    const line = lineFeed.claim();
+    instance.text = line.trim().replace(/^\d\. /, "");
+    instance.level = getAmountOfTokenInBeginningOfFile("   ", line);
+    return instance;
+  }
+
+  render() {
+    return `<li class="indent-${this.level}">${this.text} indentation level ${this.level}</li>`;
+  }
+}
+
+class Link extends Symbol {
+  /**
+   * @type {RegExp}
+   */
+  static canParseRegExp = new RegExp(/^\[.*\]\(.*\)/);
+  /**
+   * @type {RegExp}
+   */
+  static textAndLinkRegExp = new RegExp(/\[(?<text>.*)\]\((?<link>.*)\)/);
+  /**
+   * @type {string}
+   */
+  text = "";
+  /**
+   * @type {string}
+   */
+  link = "";
+  /**
+   *
+   * @param {string} line
+   * @returns {boolean}
+   */
+  static canParse(line) {
+    return Link.canParseRegExp.test(line.trim());
+  }
+
+  /**
+   *
+   * @param {LineFeed} lineFeed
+   * @returns {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);
+    instance.link = link ?? "";
+    instance.text = text ?? "";
+    return instance;
+  }
+
+  render() {
+    return `<a href="${this.link}">${this.text}</a>`;
+  }
+}
+
 class Italic extends Symbol {
   /**
    * @type {string}
@@ -350,10 +468,33 @@ const splitStringAtToken = (token, string) => {
   return [string.slice(0, index), string.slice(index + token.length)];
 };
 
+/**
+ *
+ * @param {string} token
+ * @param {string} string
+ */
+const getAmountOfTokenInBeginningOfFile = (token, string) => {
+  let count = 0;
+  let searchIndex = 0;
+  while (true) {
+    if (searchIndex + (token.length - 1) > string.length) return count;
+
+    const index = string.slice(searchIndex).indexOf(token);
+    const indexNotAtStartOfString = index !== 0;
+    if (indexNotAtStartOfString) return count;
+
+    count++;
+    searchIndex += token.length;
+  }
+};
+
 const Factories = [
   Heading,
+  UnorderedListItem,
+  OrderedListItem,
   Bold,
   Italic,
+  Link,
   MultiLineCode,
   SingleLineCode,
   CatchAll,