source: frontend/node_modules/.cache/babel-loader/13d407de46735e2cf3eee0a6fc13b1348769cc7acfe6f9ae1515098ffe76130e.json

{"ast":null,"code":"/**\n * Estimate decoded byte length of a data:// URL *without* allocating large buffers.\n * - For base64: compute exact decoded size using length and padding;\n *               handle %XX at the character-count level (no string allocation).\n * - For non-base64: use UTF-8 byteLength of the encoded body as a safe upper bound.\n *\n * @param {string} url\n * @returns {number}\n */\nexport default function estimateDataURLDecodedBytes(url) {\n  if (!url || typeof url !== 'string') return 0;\n  if (!url.startsWith('data:')) return 0;\n  const comma = url.indexOf(',');\n  if (comma < 0) return 0;\n  const meta = url.slice(5, comma);\n  const body = url.slice(comma + 1);\n  const isBase64 = /;base64/i.test(meta);\n  if (isBase64) {\n    let effectiveLen = body.length;\n    const len = body.length; // cache length\n\n    for (let i = 0; i < len; i++) {\n      if (body.charCodeAt(i) === 37 /* '%' */ && i + 2 < len) {\n        const a = body.charCodeAt(i + 1);\n        const b = body.charCodeAt(i + 2);\n        const isHex = (a >= 48 && a <= 57 || a >= 65 && a <= 70 || a >= 97 && a <= 102) && (b >= 48 && b <= 57 || b >= 65 && b <= 70 || b >= 97 && b <= 102);\n        if (isHex) {\n          effectiveLen -= 2;\n          i += 2;\n        }\n      }\n    }\n    let pad = 0;\n    let idx = len - 1;\n    const tailIsPct3D = j => j >= 2 && body.charCodeAt(j - 2) === 37 &&\n    // '%'\n    body.charCodeAt(j - 1) === 51 && (\n    // '3'\n    body.charCodeAt(j) === 68 || body.charCodeAt(j) === 100); // 'D' or 'd'\n\n    if (idx >= 0) {\n      if (body.charCodeAt(idx) === 61 /* '=' */) {\n        pad++;\n        idx--;\n      } else if (tailIsPct3D(idx)) {\n        pad++;\n        idx -= 3;\n      }\n    }\n    if (pad === 1 && idx >= 0) {\n      if (body.charCodeAt(idx) === 61 /* '=' */) {\n        pad++;\n      } else if (tailIsPct3D(idx)) {\n        pad++;\n      }\n    }\n    const groups = Math.floor(effectiveLen / 4);\n    const bytes = groups * 3 - (pad || 0);\n    return bytes > 0 ? 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