User:Rich Farmbrough/ParserProfile.js

mw.util.addPortletLink(
  'p-tb',
  '#',
  'Parse profile → WP',
  'ca-parser-wikitable',
  'Convert parser profiling comments to wikitables'
);

document.getElementById('ca-parser-wikitable').addEventListener('click', function (e) {
  e.preventDefault();

  const walker = document.createTreeWalker(document.body, NodeFilter.SHOW_COMMENT);
  const comments = [];
  while (walker.nextNode()) comments.push(walker.currentNode);

  const tables = [];

  for (const comment of comments) {
    const text = comment.textContent.trim();

    if (text.startsWith('NewPP limit report')) {
      const lines = text.split('\n').slice(1).map(l => l.trim()).filter(Boolean);
      const rows = lines.map(line => {
        if (line.includes(':')) {
          return line.split(/:\s+/, 2);
        } else if (line.startsWith('Parsed by ')) {
          const parts = line.split(/\s+/, 3);
          return [parts[0] + ' ' + parts[1], parts[2]];
        } else {
          return ['Unknown', line];
        }
      });
      tables.push([
        '{| class="wikitable"',
        '! Metric !! Value',
        ...rows.map(r => '|-\n| ' + r[0] + ' || ' + r[1]),
        '|}'
      ].join('\n'));

    } else if (text.startsWith('Transclusion expansion time report')) {
      const lines = text.split('\n').slice(1).map(l => l.trim()).filter(Boolean);
      const rows = lines.map(line => {
        const m = line.match(/^([\d.]+)%\s+([\d.]+)\s+(\d+)\s+(.*)$/);
        return m ? m.slice(1) : null;
      }).filter(Boolean);
      tables.push([
        '{| class="wikitable sortable"',
        '! % !! Time (ms) !! Calls !! Template',
        ...rows.map(r => '|-\n| ' + r.join(' || ')),
        '|}'
      ].join('\n'));
    }
  }

  const output = tables.join('\n\n');

  if (!output) {
    alert("No profiling comments found.");
  } else {
    const w = Math.floor(window.innerWidth * 0.25);
    const h = Math.floor(window.innerHeight * 0.25);
    const left = Math.floor((window.screenX || window.screenLeft) + window.innerWidth / 2 - w / 2);
    const top = Math.floor((window.screenY || window.screenTop) + window.innerHeight / 2 - h / 2);

    const popup = window.open('', '', `width=${w},height=${h},left=${left},top=${top},resizable=yes`);
    popup.document.write(`
      <html><head><title>Parser Profiling</title></head>
      <body style="margin:0.5em; font-family:sans-serif">
        <button onclick="navigator.clipboard.writeText(document.getElementById('out').value)">Copy to Clipboard</button><br>
        <textarea id="out" style="width:100%; height:85%; box-sizing:border-box;">${output.replace(/</g, '&lt;').replace(/>/g, '&gt;')}</textarea>
      </body></html>
    `);
    popup.document.close();
  }
});

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