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

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Passed

+// Refactored Markdown Parser
+// This parser converts Markdown syntax to HTML
+/**
+ * Wraps text with HTML tags
+ * @param {string} text - The text to wrap
+ * @param {string} tag - The HTML tag to use
+ * @returns {string} The wrapped text
+ */
 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');
+  }
+/**
+ * Parses inline formatting (bold, italic) in text
+ * @param {string} markdown - The markdown text to parse
+ * @returns {string} The parsed HTML text
+ */
+function parseInlineFormatting(markdown) {
+  // Parse bold text: **bold** or __bold__ -> <strong>bold</strong>
+  let result = markdown.replace(/\*\*(.+?)\*\*/g, '<strong>$1</strong>');
+  result = result.replace(/__(.+?)__/g, '<strong>$1</strong>');
+  // Parse italic text: *italic* or _italic_ -> <em>italic</em>
+  result = result.replace(/\*(.+?)\*/g, '<em>$1</em>');
+  result = result.replace(/_(.+?)_/g, '<em>$1</em>');
+  return result;
+}
+function parseHeader(markdown, list) {
+/**
+ * Parses a header line
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} inList - Whether we're currently in a list
+ * @returns {[string|null, boolean]} [HTML result, new inList state]
+ */
+function parseHeader(markdown, inList) {
+  // Count # characters at the start
   let count = 0;
   for (let i = 0; i < markdown.length; i++) {
     if (markdown[i] === '#') {
       break;
+    }
+  }
+  // Valid headers have 1-6 # characters
   if (count === 0 || count > 6) {
+    return [null, list];
+    return [null, inList];
+  }
   const headerTag = `h${count}`;
+  const headerHtml = wrap(markdown.substring(count + 1), headerTag);
+  if (list) {
+  const headerContent = markdown.substring(count + 1);
+  const headerHtml = wrap(parseInlineFormatting(headerContent), headerTag);
+  // Close any open list before starting header
+  if (inList) {
     return [`</ul>${headerHtml}`, false];
   } else {
     return [headerHtml, false];
+  }
+}
+function parseLineItem(markdown, list) {
+  if (markdown.startsWith('*')) {
+    const innerHtml = wrap(parseText(markdown.substring(2), true), 'li');
+    if (list) {
+      return [innerHtml, true];
+/**
+ * Parses a list item line
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} inList - Whether we're currently in a list
+ * @returns {[string|null, boolean]} [HTML result, new inList state]
+ */
+function parseLineItem(markdown, inList) {
+  if (markdown.startsWith('* ')) {
+    const itemContent = markdown.substring(2);
+    const itemHtml = wrap(parseInlineFormatting(itemContent), 'li');
+    if (inList) {
+      return [itemHtml, true];
     } else {
+      return [`<ul>${innerHtml}`, true];
+      return [`<ul>${itemHtml}`, true];
+    }
+  }
+  return [null, list];
+  return [null, inList];
+}
+function parseParagraph(markdown, list) {
+  if (!list) {
+    return [parseText(markdown, false), false];
+/**
+ * Parses a paragraph line
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} inList - Whether we're currently in a list
+ * @returns {[string, boolean]} [HTML result, new inList state]
+ */
+function parseParagraph(markdown, inList) {
+  const paragraphContent = parseInlineFormatting(markdown);
+  if (inList) {
+    return [`</ul>${wrap(paragraphContent, 'p')}`, false];
   } else {
+    return [`</ul>${parseText(markdown, false)}`, false];
+    return [wrap(paragraphContent, 'p'), false];
+  }
+}
+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);
+/**
+ * Parses a single line of markdown
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} inList - Whether we're currently in a list
+ * @returns {[string, boolean]} [HTML result, new inList state]
+ */
+function parseLine(markdown, inList) {
+  // Try to parse as header
+  let [result, newInList] = parseHeader(markdown, inList);
+  if (result !== null) {
+    return [result, newInList];
+  }
+  if (result === null) {
+    throw new Error('Remove this line and implement the function');
+  // Try to parse as list item
+  [result, newInList] = parseLineItem(markdown, inList);
+  if (result !== null) {
+    return [result, newInList];
+  }
+  return [result, inListAfter];
+  // Parse as paragraph
+  return parseParagraph(markdown, inList);
+}
 /**
+ * @param {string} markdown
+ * @returns {string}
+ * Main function to parse markdown text 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);
+  let inList = false;
+  for (const line of lines) {
+    const [lineResult, newInList] = parseLine(line, inList);
     result += lineResult;
+    list = newList;
+    inList = newInList;
+  }
+  if (list) {
+    return result + '</ul>';
+  } else {
+    return result;
+  // Close any open list at the end
+  if (inList) {
+    result += '</ul>';
+  }
+  return result;
+}