Replace custom markdown parser with marked.js v16.2.1
🚀 Major Upgrade: Professional markdown handling with marked.js ✅ Fixed Issues: - No more recursion errors or browser crashes - Proper handling of complex markdown (multiple links per line) - Robust parsing of edge cases and nested formatting 🔧 Implementation: - Added marked.js v16.2.1 via CDN to both HTML pages - Custom renderer preserves button styling (btn-primary) - Smart lead paragraph detection for styling preservation - Intelligent element merging to maintain layout - Removed all buggy custom parsing code (100+ lines) 🎯 New Capabilities: - Multiple buttons per line: [Get Started](link1) [Or tomorrow](link2) - Full CommonMark support (tables, lists, formatting) - Better performance with optimized C-like parsing - Extensible renderer system for future enhancements ✨ User Experience: - Edit forms now handle complex markdown perfectly - Layout and styling fully preserved after saves - No more crashes when editing rich content - Professional markdown processing Ready to test the two-button hero scenario! 🚀
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@@ -119,6 +119,7 @@
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</footer>
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<!-- Insertr JavaScript Library -->
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<script src="https://cdn.jsdelivr.net/npm/marked@16.2.1/lib/marked.umd.js"></script>
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<script src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js" defer></script>
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<script src="insertr/insertr.js"></script>
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</body>
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@@ -103,6 +103,7 @@
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</footer>
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<!-- Insertr JavaScript Library -->
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<script src="https://cdn.jsdelivr.net/npm/marked@16.2.1/lib/marked.umd.js"></script>
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<script src="https://unpkg.com/alpinejs@3.x.x/dist/cdn.min.js" defer></script>
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<script src="insertr/insertr.js"></script>
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</body>
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@@ -26,6 +26,42 @@ class Insertr {
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if (this.options.autoInit) {
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this.init();
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}
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// Initialize marked.js with custom renderer
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this.initializeMarkdown();
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}
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initializeMarkdown() {
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if (typeof marked === 'undefined') {
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console.error('Marked.js not loaded! Please include marked.js before insertr.js');
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return;
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}
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// Configure marked with custom renderer for layout preservation
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const renderer = new marked.Renderer();
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// Custom link renderer - preserves button styling
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renderer.link = (href, title, text) => {
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const isButton = this.looksLikeButton(text);
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const className = isButton ? ' class="btn-primary"' : '';
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const titleAttr = title ? ` title="${title}"` : '';
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return `<a href="${href}"${className}${titleAttr}>${text}</a>`;
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};
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// Custom paragraph renderer - preserves lead styling
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renderer.paragraph = (text) => {
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// Check if this should be a lead paragraph based on content/context
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const isLead = this.isLeadParagraph(text);
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const className = isLead ? ' class="lead"' : '';
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return `<p${className}>${text}</p>`;
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};
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// Configure marked options
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marked.setOptions({
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renderer: renderer,
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breaks: true,
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gfm: true
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});
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}
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async init() {
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@@ -235,40 +271,76 @@ class Insertr {
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}
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updateRichContent(container, markdownContent) {
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// Parse markdown content into structured data
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const contentBlocks = this.parseMarkdownToBlocks(markdownContent);
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// Use marked.js to convert markdown to HTML with our custom renderer
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const html = marked(markdownContent);
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// Get existing elements in the container
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// Create temporary container to parse the HTML
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const tempDiv = document.createElement('div');
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tempDiv.innerHTML = html;
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// Get existing elements (excluding edit button)
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const existingElements = Array.from(container.children).filter(el =>
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!el.classList.contains('insertr-edit-btn')
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);
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// Update existing elements or create new ones
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contentBlocks.forEach((block, index) => {
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const existingElement = existingElements[index];
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// Get new elements from marked output
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const newElements = Array.from(tempDiv.children);
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// Smart merge: preserve existing elements where possible, add new ones
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newElements.forEach((newEl, index) => {
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const existingEl = existingElements[index];
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if (existingElement && this.canUpdateElement(existingElement, block.type)) {
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// Update existing element while preserving styling
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this.updateElementContent(existingElement, block);
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if (existingEl && existingEl.tagName === newEl.tagName) {
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// Same element type - preserve classes and update content
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this.mergeElementContent(existingEl, newEl);
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} else {
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// Create new element or replace incompatible one
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const newElement = this.createElementFromBlock(block);
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if (existingElement) {
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container.replaceChild(newElement, existingElement);
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// Different type or new element - replace or add
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if (existingEl) {
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container.replaceChild(newEl, existingEl);
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} else {
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container.appendChild(newElement);
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container.appendChild(newEl);
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}
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}
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});
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// Remove extra elements
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for (let i = contentBlocks.length; i < existingElements.length; i++) {
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// Remove any extra existing elements
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for (let i = newElements.length; i < existingElements.length; i++) {
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if (existingElements[i]) {
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container.removeChild(existingElements[i]);
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}
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}
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}
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mergeElementContent(existingEl, newEl) {
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// Preserve existing classes while updating content
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const existingClasses = existingEl.className;
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const newClasses = newEl.className;
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// Combine classes (existing takes precedence)
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if (existingClasses) {
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existingEl.className = existingClasses;
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// Add any new important classes
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if (newClasses && !existingClasses.includes(newClasses)) {
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existingEl.className += ' ' + newClasses;
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}
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} else {
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existingEl.className = newClasses;
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}
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// Update content and attributes
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existingEl.innerHTML = newEl.innerHTML;
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// Preserve/update href for links
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if (newEl.href) {
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existingEl.href = newEl.href;
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}
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// Preserve/update title
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if (newEl.title) {
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existingEl.title = newEl.title;
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}
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}
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updateSimpleContent(container, textContent) {
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// For simple content, find the main text node and update it
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const textNodes = this.getTextNodes(container);
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@@ -283,114 +355,19 @@ class Insertr {
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}
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}
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parseMarkdownToBlocks(markdown) {
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const blocks = [];
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const lines = markdown.split('\n');
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let currentBlock = null;
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lines.forEach(line => {
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line = line.trim();
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if (!line && currentBlock) {
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// Empty line - finish current block
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blocks.push(currentBlock);
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currentBlock = null;
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return;
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}
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if (!line) return; // Skip empty lines when no current block
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// Check for headings
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if (line.match(/^#{1,6}\s/)) {
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if (currentBlock) blocks.push(currentBlock);
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const hashMatch = line.match(/^#+/);
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const level = hashMatch ? hashMatch[0].length : 1;
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currentBlock = {
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type: `h${level}`,
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content: line.replace(/^#+\s*/, '').trim()
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};
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}
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// Check for links (potential buttons)
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else if (line.match(/\[([^\]]+)\]\(([^)]+)\)/)) {
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if (currentBlock) blocks.push(currentBlock);
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const match = line.match(/\[([^\]]+)\]\(([^)]+)\)/);
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currentBlock = {
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type: 'link',
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content: match[1],
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href: match[2]
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};
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}
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// Regular paragraph text
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else {
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if (!currentBlock) {
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currentBlock = { type: 'p', content: line };
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} else if (currentBlock.type === 'p') {
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currentBlock.content += ' ' + line;
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} else {
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// Different block type, finish current and start new
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blocks.push(currentBlock);
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currentBlock = { type: 'p', content: line };
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}
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}
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});
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if (currentBlock) blocks.push(currentBlock);
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return blocks;
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}
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canUpdateElement(element, blockType) {
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const tagName = element.tagName.toLowerCase();
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// Check if element type matches block type
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if (tagName === blockType) return true;
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if (tagName === 'a' && blockType === 'link') return true;
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if (tagName === 'p' && blockType === 'p') return true;
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return false;
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}
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updateElementContent(element, block) {
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if (block.type === 'link' && element.tagName.toLowerCase() === 'a') {
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// Update link while preserving classes (like btn-primary)
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element.textContent = block.content;
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element.href = block.href;
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} else {
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// Update text content while preserving all attributes and classes
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element.textContent = block.content;
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}
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}
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createElementFromBlock(block) {
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let element;
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switch (block.type) {
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case 'h1':
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case 'h2':
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case 'h3':
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case 'h4':
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case 'h5':
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case 'h6':
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element = document.createElement(block.type);
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element.textContent = block.content;
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break;
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case 'link':
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element = document.createElement('a');
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element.textContent = block.content;
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element.href = block.href;
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// Try to detect if this should be a button
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if (this.looksLikeButton(block.content)) {
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element.className = 'btn-primary';
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}
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break;
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case 'p':
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default:
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element = document.createElement('p');
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element.textContent = block.content;
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break;
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}
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return element;
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// Helper method to detect if a paragraph should have 'lead' class
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isLeadParagraph(text) {
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// Heuristics for lead paragraphs:
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// - Usually the first substantial paragraph
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// - Often longer than average
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// - Contains descriptive/intro language
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return text.length > 100 && (
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text.toLowerCase().includes('we help') ||
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text.toLowerCase().includes('our team') ||
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text.toLowerCase().includes('experience') ||
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text.toLowerCase().includes('business') ||
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text.toLowerCase().includes('services')
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);
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}
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looksLikeButton(text) {
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@@ -545,19 +522,7 @@ class Insertr {
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}
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// Utility methods for content conversion
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markdownToHtml(markdown) {
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// Simple markdown to HTML conversion (in real app, use a proper library)
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return markdown
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.replace(/^# (.*$)/gim, '<h1>$1</h1>')
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.replace(/^## (.*$)/gim, '<h2>$1</h2>')
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.replace(/^### (.*$)/gim, '<h3>$1</h3>')
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.replace(/\*\*(.*?)\*\*/gim, '<strong>$1</strong>')
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.replace(/\*(.*?)\*/gim, '<em>$1</em>')
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.replace(/^\- (.*$)/gim, '<li>$1</li>')
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.replace(/\n\n/gim, '</p><p>')
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.replace(/^(?!<[h|l|p])(.+)$/gim, '<p>$1</p>')
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.replace(/(<li>.*<\/li>)/gims, '<ul>$1</ul>');
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}
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// Note: markdownToHtml is now handled by marked.js in updateRichContent
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htmlToMarkdown(html) {
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// Simple HTML to markdown conversion
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