Function hasSuspiciousDecodedControlChars

src/pkg/utils/encoding.ts:163–173

(text: string)

};

const hasSuspiciousDecodedControlChars = (text: string): boolean => {
  let controls = 0;
  for (let i = 0; i < text.length; i++) {
    const code = text.charCodeAt(i);
    if (code === 0xfffd || code === 0) return true;
    if (code < 0x20 && code !== 0x09 && code !== 0x0a && code !== 0x0d) {
      controls++;
    }
  }
  return controls > Math.max(4, text.length * 0.02);
};

/**
 * Legacy chardet fallback for readBlobContent.