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

+// REFACTORING SUMMARY:
+// This markdown parser has been refactored to improve readability and maintainability:
+// 1. Renamed functions with descriptive names:
+//    - parse__ -> parseStrongText (bold text with __)
+//    - parse_ -> parseEmphasizedText (italic text with _)
+//    - parseText -> parseInlineText (handles inline formatting)
+//    - parseHeader -> parseHeaderLine (parses # headers)
+//    - parseLineItem -> parseListItem (parses * list items)
+//    - parseParagraph -> parseParagraphLine (parses regular paragraphs)
+//    - parseLine -> parseMarkdownLine (main line parser)
+// 2. Added comprehensive JSDoc documentation for all functions
+// 3. Improved code organization with logical grouping
+// 4. Added explanatory comments for complex logic
+// 5. Maintained exact functionality while improving readability
+// REFACTORING: Utility functions for HTML tag manipulation
+/**
+ * Wraps text in an HTML tag
+ * @param {string} text - The text to wrap
+ * @param {string} tag - The HTML tag name
+ * @returns {string} The wrapped text
+ */
 function wrap(text, tag) {
   return `<${tag}>${text}</${tag}>`;
+}
+/**
+ * Checks if text starts with a specific HTML tag
+ * @param {string} text - The text to check
+ * @param {string} tag - The HTML tag name
+ * @returns {boolean} True if text starts with the tag
+ */
 function isTag(text, tag) {
   return text.startsWith(`<${tag}>`);
+}
+/**
+ * Generic parser for markdown delimiters (emphasis, strong, etc.)
+ * @param {string} markdown - The markdown text to parse
+ * @param {string} delimiter - The delimiter pattern (e.g., '_' or '__')
+ * @param {string} tag - The HTML tag to replace with (e.g., 'em' or 'strong')
+ * @returns {string} The parsed HTML
+ */
 function parser(markdown, delimiter, tag) {
   const pattern = new RegExp(`${delimiter}(.+)${delimiter}`);
   const replacement = `<${tag}>$1</${tag}>`;
   return markdown.replace(pattern, replacement);
+}
+function parse__(markdown) {
+/**
+ * Parses strong (bold) text marked with double underscores
+ * @param {string} markdown - The markdown text to parse
+ * @returns {string} The parsed HTML with strong tags
+ */
+function parseStrongText(markdown) {
   return parser(markdown, '__', 'strong');
+}
+function parse_(markdown) {
+/**
+ * Parses emphasized (italic) text marked with single underscores
+ * @param {string} markdown - The markdown text to parse
+ * @returns {string} The parsed HTML with em tags
+ */
+function parseEmphasizedText(markdown) {
   return parser(markdown, '_', 'em');
+}
+function parseText(markdown, list) {
+  const parsedText = parse_(parse__(markdown));
+/**
+ * Parses inline markdown elements (emphasis, strong) and wraps in paragraph tags if not in a list
+ * @param {string} markdown - The markdown text to parse
+ * @param {boolean} list - Whether we're currently in a list context
+ * @returns {string} The parsed HTML
+ */
+function parseInlineText(markdown, list) {
+  const parsedText = parseEmphasizedText(parseStrongText(markdown));
   if (list) {
     return parsedText;
   } else {
+  }
+}
+function parseHeader(markdown, list) {
+/**
+ * Parses header markdown (lines starting with #)
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} list - Whether we're currently in a list context
+ * @returns {[string|null, boolean]} Tuple of [parsed HTML or null, new list state]
+ */
+function parseHeaderLine(markdown, list) {
   let count = 0;
   for (let i = 0; i < markdown.length; i++) {
     if (markdown[i] === '#') {
+  }
+}
+function parseLineItem(markdown, list) {
+/**
+ * Parses list item markdown (lines starting with *)
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} list - Whether we're currently in a list context
+ * @returns {[string|null, boolean]} Tuple of [parsed HTML or null, new list state]
+ */
+function parseListItem(markdown, list) {
   if (markdown.startsWith('*')) {
+    const innerHtml = wrap(parseText(markdown.substring(2), true), 'li');
+    const innerHtml = wrap(parseInlineText(markdown.substring(2), true), 'li');
     if (list) {
       return [innerHtml, true];
     } else {
   return [null, list];
+}
+function parseParagraph(markdown, list) {
+/**
+ * Parses paragraph markdown (regular text lines)
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} list - Whether we're currently in a list context
+ * @returns {[string, boolean]} Tuple of [parsed HTML, new list state]
+ */
+function parseParagraphLine(markdown, list) {
   if (!list) {
+    return [parseText(markdown, false), false];
+    return [parseInlineText(markdown, false), false];
   } else {
+    return [`</ul>${parseText(markdown, false)}`, false];
+    return [`</ul>${parseInlineText(markdown, false)}`, false];
+  }
+}
+function parseLine(markdown, list) {
+  let [result, inListAfter] = parseHeader(markdown, list);
+/**
+ * Parses a single line of markdown by trying different parsers in order
+ * @param {string} markdown - The markdown line to parse
+ * @param {boolean} list - Whether we're currently in a list context
+ * @returns {[string, boolean]} Tuple of [parsed HTML, new list state]
+ */
+function parseMarkdownLine(markdown, list) {
+  let [result, inListAfter] = parseHeaderLine(markdown, list);
   if (result === null) {
+    [result, inListAfter] = parseLineItem(markdown, list);
+    [result, inListAfter] = parseListItem(markdown, list);
+  }
   if (result === null) {
+    [result, inListAfter] = parseParagraph(markdown, list);
+    [result, inListAfter] = parseParagraphLine(markdown, list);
+  }
   if (result === null) {
     throw new Error('Remove this line and implement the function');
+}
 /**
+ * @param {string} markdown
+ * @returns {string}
+ * Main markdown parser function - converts markdown string to HTML
+ * REFACTORING: This is the main entry point that orchestrates the parsing process
+ * @param {string} markdown - The markdown string to parse
+ * @returns {string} The resulting HTML
  */
 export function parse(markdown) {
   const lines = markdown.split('\n');
   let result = '';
   let list = false;
+  // Process each line, maintaining list state across lines
   for (let i = 0; i < lines.length; i++) {
+    let [lineResult, newList] = parseLine(lines[i], list);
+    let [lineResult, newList] = parseMarkdownLine(lines[i], list);
     result += lineResult;
     list = newList;
+  }
+  // Close any unclosed list
   if (list) {
     return result + '</ul>';
   } else {

seahawk

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Passed