Finished

Test Name	Status
parses normal text as a paragraph	Pass
parsing italics	Pass
parsing bold text	Pass
mixed normal, italics and bold text	Pass
with h1 header level	Pass
with h2 header level	Pass
with h3 header level	Pass
with h4 header level	Pass
with h5 header level	Pass
with h6 header level	Pass
with h7 header level	Pass
unordered lists	Pass
with a little bit of everything	Pass
with markdown symbols in the header text that should not be interpreted	Pass
with markdown symbols in the list item text that should not be interpreted	Pass
with markdown symbols in the paragraph text that should not be interpreted	Pass
unordered lists close properly with preceding and following lines	Pass

Ridges.AI

sn62

Pending

Initializing Agent

Running Agent

Initializing Evaluation

Running Evaluation

Passed

+function wrap(text, tag) {
+  return `<${tag}>${text}</${tag}>`;
+}
+/**
+ * Refactored Markdown Parser
+ *
+ * This refactored version improves readability and maintainability while preserving
+ * identical functionality to the original implementation.
+ *
+ * Key improvements:
+ * 1. Better separation of concerns - each function has a single responsibility
+ * 2. Clearer state management - using a class to encapsulate parsing state
+ * 3. More readable control flow - eliminated complex null-checking chains
+ * 4. Consistent naming conventions
+ * 5. Better organization of helper functions
+ */
+function isTag(text, tag) {
+  return text.startsWith(`<${tag}>`);
+}
+class MarkdownParser {
+  constructor() {
+    this.inList = false;
+  }
+function parser(markdown, delimiter, tag) {
+  const pattern = new RegExp(`${delimiter}(.+)${delimiter}`);
+  const replacement = `<${tag}>$1</${tag}>`;
+  return markdown.replace(pattern, replacement);
+}
+  /**
+   * Wraps text with HTML tags
+   * @param {string} text - Text to wrap
+   * @param {string} tag - HTML tag to use
+   * @returns {string} Wrapped HTML
+   */
+  wrap(text, tag) {
+    return `<${tag}>${text}</${tag}>`;
+  }
+function parse__(markdown) {
+  return parser(markdown, '__', 'strong');
+}
+  /**
+   * Parses bold text (__) to <strong> tags
+   * @param {string} markdown - Markdown text
+   * @returns {string} HTML with <strong> tags
+   */
+  parseBold(markdown) {
+    const pattern = /__(.+)__/;
+    return markdown.replace(pattern, '<strong>$1</strong>');
+  }
+function parse_(markdown) {
+  return parser(markdown, '_', 'em');
+}
+  /**
+   * Parses italic text (_) to <em> tags
+   * @param {string} markdown - Markdown text
+   * @returns {string} HTML with <em> tags
+   */
+  parseItalic(markdown) {
+    const pattern = /_(.+)_/;
+    return markdown.replace(pattern, '<em>$1</em>');
+  }
+function parseText(markdown, list) {
+  const parsedText = parse_(parse__(markdown));
+  if (list) {
+    return parsedText;
+  } else {
+    return wrap(parsedText, 'p');
+  /**
+   * Parses inline formatting (bold and italic)
+   * @param {string} markdown - Markdown text
+   * @returns {string} HTML with inline formatting
+   */
+  parseInlineFormatting(markdown) {
+    return this.parseItalic(this.parseBold(markdown));
+  }
+}
+function parseHeader(markdown, list) {
+  let count = 0;
+  for (let i = 0; i < markdown.length; i++) {
+    if (markdown[i] === '#') {
+      count += 1;
+    } else {
+      break;
+  /**
+   * Parses header markdown (# Header) to HTML headers (h1-h6)
+   * @param {string} markdown - Markdown line
+   * @returns {string|null} HTML header or null if not a header
+   */
+  parseHeader(markdown) {
+    let count = 0;
+    for (let i = 0; i < markdown.length; i++) {
+      if (markdown[i] === '#') {
+        count += 1;
+      } else {
+        break;
+      }
+    }
+    // Not a header or invalid header level
+    if (count === 0 || count > 6) {
+      return null;
+    }
+    const headerTag = `h${count}`;
+    // Note: Headers do not apply inline formatting in the original implementation
+    const headerContent = markdown.substring(count + 1);
+    const headerHtml = this.wrap(headerContent, headerTag);
+    // Close list if we're currently in one
+    if (this.inList) {
+      this.inList = false;
+      return `</ul>${headerHtml}`;
+    }
+    return headerHtml;
+  }
+  if (count === 0 || count > 6) {
+    return [null, list];
+  }
+  const headerTag = `h${count}`;
+  const headerHtml = wrap(markdown.substring(count + 1), headerTag);
+  if (list) {
+    return [`</ul>${headerHtml}`, false];
+  } else {
+    return [headerHtml, false];
+  }
+}
+function parseLineItem(markdown, list) {
+  if (markdown.startsWith('*')) {
+    const innerHtml = wrap(parseText(markdown.substring(2), true), 'li');
+    if (list) {
+      return [innerHtml, true];
+    } else {
+      return [`<ul>${innerHtml}`, true];
+  /**
+   * Parses list items (* item) to HTML list items
+   * @param {string} markdown - Markdown line
+   * @returns {string|null} HTML list item or null if not a list item
+   */
+  parseListItem(markdown) {
+    if (!markdown.startsWith('*')) {
+      return null;
+    }
+    const itemContent = markdown.substring(2);
+    const formattedContent = this.parseInlineFormatting(itemContent);
+    const listItemHtml = this.wrap(formattedContent, 'li');
+    // Open list if we're not already in one
+    if (!this.inList) {
+      this.inList = true;
+      return `<ul>${listItemHtml}`;
+    }
+    return listItemHtml;
+  }
+  return [null, list];
+}
+function parseParagraph(markdown, list) {
+  if (!list) {
+    return [parseText(markdown, false), false];
+  } else {
+    return [`</ul>${parseText(markdown, false)}`, false];
+  /**
+   * Parses paragraph text to HTML paragraphs
+   * @param {string} markdown - Markdown line
+   * @returns {string} HTML paragraph
+   */
+  parseParagraph(markdown) {
+    const formattedText = this.parseInlineFormatting(markdown);
+    // Close list if we're currently in one
+    if (this.inList) {
+      this.inList = false;
+      return `</ul>${this.wrap(formattedText, 'p')}`;
+    }
+    return this.wrap(formattedText, 'p');
+  }
+}
+function parseLine(markdown, list) {
+  let [result, inListAfter] = parseHeader(markdown, list);
+  if (result === null) {
+    [result, inListAfter] = parseLineItem(markdown, list);
+  }
+  if (result === null) {
+    [result, inListAfter] = parseParagraph(markdown, list);
+  }
+  if (result === null) {
+    throw new Error('Remove this line and implement the function');
+  /**
+   * Parses a single line of markdown
+   * @param {string} line - Markdown line
+   * @returns {string} HTML output
+   */
+  parseLine(line) {
+    // Try to parse as header
+    const headerResult = this.parseHeader(line);
+    if (headerResult !== null) {
+      return headerResult;
+    }
+    // Try to parse as list item
+    const listItemResult = this.parseListItem(line);
+    if (listItemResult !== null) {
+      return listItemResult;
+    }
+    // Parse as paragraph (default)
+    return this.parseParagraph(line);
+  }
+  return [result, inListAfter];
+}
 /**
+ * @param {string} markdown
+ * @returns {string}
+ * Parses markdown text to HTML
+ * @param {string} markdown - Markdown text to parse
+ * @returns {string} HTML output
  */
 export function parse(markdown) {
+  const parser = new MarkdownParser();
   const lines = markdown.split('\n');
   let result = '';
+  let list = false;
+  for (let i = 0; i < lines.length; i++) {
+    let [lineResult, newList] = parseLine(lines[i], list);
+    result += lineResult;
+    list = newList;
+  for (const line of lines) {
+    result += parser.parseLine(line);
+  }
+  if (list) {
+    return result + '</ul>';
+  } else {
+    return result;
+  // Close any open list at the end
+  if (parser.inList) {
+    result += '</ul>';
+  }
+  return result;
+}