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

seahawk

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Initializing Agent

Running Agent

Initializing Evaluation

Running Evaluation

Passed

+function wrap(text, tag) {
+  return `<${tag}>${text}</${tag}>`;
+}
+function isTag(text, tag) {
+  return text.startsWith(`<${tag}>`);
+}
+function parser(markdown, delimiter, tag) {
+  const pattern = new RegExp(`${delimiter}(.+)${delimiter}`);
+  const replacement = `<${tag}>$1</${tag}>`;
+  return markdown.replace(pattern, replacement);
+}
+function parse__(markdown) {
+  return parser(markdown, '__', 'strong');
+}
+function parse_(markdown) {
+  return parser(markdown, '_', 'em');
+}
+function parseText(markdown, list) {
+  const parsedText = parse_(parse__(markdown));
+  if (list) {
+    return parsedText;
+  } else {
+    return wrap(parsedText, 'p');
+/**
+ * A Markdown parser that converts Markdown syntax to HTML.
+ *
+ * Refactored to use a class-based approach for better organization and readability.
+ * The parser handles headers, lists, paragraphs, and text formatting (emphasis).
+ */
+class MarkdownParser {
+  constructor() {
+    // Constants for header levels
+    this.MAX_HEADER_LEVEL = 6;
+  }
+}
+function parseHeader(markdown, list) {
+  let count = 0;
+  for (let i = 0; i < markdown.length; i++) {
+    if (markdown[i] === '#') {
+      count += 1;
+    } else {
+      break;
+  /**
+   * Main parsing method that converts markdown text to HTML
+   * @param {string} markdown - The markdown text to parse
+   * @returns {string} - The resulting HTML
+   */
+  parse(markdown) {
+    const lines = markdown.split('\n');
+    let html = '';
+    let inList = false;
+    for (const line of lines) {
+      const [lineHtml, newListState] = this.parseLine(line, inList);
+      html += lineHtml;
+      inList = newListState;
+    }
+    // Close any open list at the end
+    if (inList) {
+      html += '</ul>';
+    }
+    return html;
+  }
+  if (count === 0 || count > 6) {
+    return [null, list];
+  /**
+   * Parse a single line of markdown
+   * @param {string} line - A single line of markdown
+   * @param {boolean} inList - Whether we're currently in a list
+   * @returns {[string, boolean]} - [HTML for the line, new list state]
+   */
+  parseLine(line, inList) {
+    // Try to parse as header first
+    const headerResult = this.parseHeader(line, inList);
+    if (headerResult[0] !== null) {
+      return headerResult;
+    }
+    // Try to parse as list item
+    const listItemResult = this.parseListItem(line, inList);
+    if (listItemResult[0] !== null) {
+      return listItemResult;
+    }
+    // Default to paragraph
+    return this.parseParagraph(line, inList);
+  }
+  const headerTag = `h${count}`;
+  const headerHtml = wrap(markdown.substring(count + 1), headerTag);
+  if (list) {
+    return [`</ul>${headerHtml}`, false];
+  } else {
+  /**
+   * Parse header markdown (# Header)
+   * @param {string} line - Line to parse
+   * @param {boolean} inList - Current list state
+   * @returns {[string|null, boolean]} - [HTML or null if not a header, new list state]
+   */
+  parseHeader(line, inList) {
+    // Count consecutive # characters at the start
+    let level = 0;
+    while (level < line.length && line[level] === '#') {
+      level++;
+    }
+    // Valid headers have 1-6 # characters followed by a space
+    if (level === 0 || level > this.MAX_HEADER_LEVEL || line[level] !== ' ') {
+      return [null, inList];
+    }
+    const headerTag = `h${level}`;
+    const content = line.substring(level + 1);
+    const headerHtml = this.wrap(content, headerTag);
+    // If we were in a list, close it before the header
+    if (inList) {
+      return [`</ul>${headerHtml}`, false];
+    }
     return [headerHtml, false];
+  }
+}
+function parseLineItem(markdown, list) {
+  if (markdown.startsWith('*')) {
+    const innerHtml = wrap(parseText(markdown.substring(2), true), 'li');
+    if (list) {
+      return [innerHtml, true];
+  /**
+   * Parse list item markdown (* item)
+   * @param {string} line - Line to parse
+   * @param {boolean} inList - Current list state
+   * @returns {[string|null, boolean]} - [HTML or null if not a list item, new list state]
+   */
+  parseListItem(line, inList) {
+    if (!line.startsWith('* ')) {
+      return [null, inList];
+    }
+    const content = line.substring(2);
+    const textHtml = this.parseText(content, true);
+    const listItemHtml = this.wrap(textHtml, 'li');
+    if (inList) {
+      // Continue existing list
+      return [listItemHtml, true];
     } else {
+      return [`<ul>${innerHtml}`, true];
+      // Start new list
+      return [`<ul>${listItemHtml}`, true];
+    }
+  }
+  return [null, list];
+}
+function parseParagraph(markdown, list) {
+  if (!list) {
+    return [parseText(markdown, false), false];
+  } else {
+    return [`</ul>${parseText(markdown, false)}`, false];
+  /**
+   * Parse paragraph (default case for any line)
+   * @param {string} line - Line to parse
+   * @param {boolean} inList - Current list state
+   * @returns {[string, boolean]} - [HTML for paragraph, new list state]
+   */
+  parseParagraph(line, inList) {
+    const textHtml = this.parseText(line, false);
+    const paragraphHtml = this.wrap(textHtml, 'p');
+    // If we were in a list, close it before the paragraph
+    if (inList) {
+      return [`</ul>${paragraphHtml}`, false];
+    }
+    return [paragraphHtml, false];
+  }
+}
+function parseLine(markdown, list) {
+  let [result, inListAfter] = parseHeader(markdown, list);
+  if (result === null) {
+    [result, inListAfter] = parseLineItem(markdown, list);
+  /**
+   * Parse text with emphasis formatting (_ and __)
+   * @param {string} text - Text to parse
+   * @param {boolean} inList - Whether this text is inside a list item
+   * @returns {string} - HTML with emphasis tags
+   */
+  parseText(text, inList) {
+    // Parse strong (__text__) then emphasis (_text_)
+    let parsedText = this.parseStrong(text);
+    parsedText = this.parseEmphasis(parsedText);
+    // Return parsed text without wrapping - wrapping is handled by callers
+    return parsedText;
+  }
+  if (result === null) {
+    [result, inListAfter] = parseParagraph(markdown, list);
+  /**
+   * Parse strong emphasis (__text__ -> <strong>text</strong>)
+   * @param {string} text - Text to parse
+   * @returns {string} - Text with strong tags
+   */
+  parseStrong(text) {
+    return this.parser(text, '__', 'strong');
+  }
+  if (result === null) {
+    throw new Error('Remove this line and implement the function');
+  /**
+   * Parse emphasis (_text_ -> <em>text</em>)
+   * @param {string} text - Text to parse
+   * @returns {string} - Text with emphasis tags
+   */
+  parseEmphasis(text) {
+    return this.parser(text, '_', 'em');
+  }
+  /**
+   * Generic parser for text formatting with delimiters
+   * @param {string} text - Text to parse
+   * @param {string} delimiter - Delimiter to look for (e.g., '__', '_')
+   * @param {string} tag - HTML tag to wrap matches with
+   * @returns {string} - Text with replacements made
+   */
+  parser(text, delimiter, tag) {
+    const pattern = new RegExp(`${delimiter}(.+?)${delimiter}`);
+    const replacement = `<${tag}>$1</${tag}>`;
+    return text.replace(pattern, replacement);
+  }
+  /**
+   * Wrap text in HTML tags
+   * @param {string} text - Text to wrap
+   * @param {string} tag - HTML tag to use
+   * @returns {string} - Wrapped text
+   */
+  wrap(text, tag) {
+    return `<${tag}>${text}</${tag}>`;
+  }
+  return [result, inListAfter];
+}
+// Create a single instance and export the parse function for backward compatibility
+const markdownParser = new MarkdownParser();
 /**
+ * @param {string} markdown
+ * @returns {string}
+ * Parse markdown text and convert to HTML
+ * @param {string} markdown - The markdown text to parse
+ * @returns {string} - The resulting HTML
  */
 export function parse(markdown) {
+  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;
+  }
+  if (list) {
+    return result + '</ul>';
+  } else {
+    return result;
+  }
+  return markdownParser.parse(markdown);
+}