Created
May 18, 2026 05:47
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Simple Editor</title> | |
| <style> | |
| body { font-family: sans-serif; max-width: 600px; margin: 20px auto; } | |
| #input { width: 100%; height: 200px; } | |
| #output { border: 1px solid #ccc; padding: 10px; min-height: 100px; } | |
| code { background: #f4f4f4; padding: 2px 4px; } | |
| pre { background: #f4f4f4; padding: 10px; overflow-x: auto; } | |
| italic { font-style: italic; } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>Simple Editor</h1> | |
| <textarea id="input" placeholder="Type here..."></textarea> | |
| <div id="output"></div> | |
| <script> | |
| function parse(text) { | |
| let html = ''; | |
| const blocks = text.split(/\n\s*\n/); | |
| for (const block of blocks) { | |
| if (block.match(/^ /m)) { | |
| html += '<pre>' + escapeHtml(block.replace(/^ /gm, '')) + '</pre>'; | |
| } else { | |
| let processed = block; | |
| processed = processed.replace(/<(\S+)>/g, '<a href="$1">$1</a>'); | |
| processed = processed.replace(/\bhttps?:\/\/[^\s<]+/g, '<a href="$&">$&</a>'); | |
| processed = processed.replace(/\\\*/g, '\x00AST\x00'); | |
| processed = processed.replace(/\*\*/g, '\x00AST\x00'); | |
| processed = processed.replace(/\*([^*]+)\*/g, '<em>$1</em>'); | |
| processed = processed.replace(/\x00AST\x00/g, '*'); | |
| const lines = processed.split('\n').map(l => l ? '<p>' + l + '</p>' : ''); | |
| html += lines.join(''); | |
| } | |
| } | |
| return html; | |
| } | |
| function escapeHtml(s) { return s.replace(/[&<>"']/g, c => ({'&':'&','<':'<','>':'>','"':'"',"'":'''}[c])); } | |
| document.getElementById('output').innerHTML = parse(document.getElementById('input').value); | |
| document.getElementById('input').addEventListener('input', e => { | |
| document.getElementById('output').innerHTML = parse(e.target.value); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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