Function isLikelyTextFile

src/node/utils/attachments/readAttachmentFromPath.ts:225–247

(bytes: Buffer)

}

function isLikelyTextFile(bytes: Buffer): boolean {
  if (bytes.length === 0) {
    return true;
  }
  if (bytes.includes(0)) {
    return false;
  }

  const text = bytes.toString("utf8");
  if (text.includes("\uFFFD")) {
    return false;
  }

  let controlCharacterCount = 0;
  for (const char of text) {
    const code = char.charCodeAt(0);
    if (code < 32 && char !== "\n" && char !== "\r" && char !== "\t") {
      controlCharacterCount++;
    }
  }

  return controlCharacterCount / text.length < 0.05;
}

function createLoadedFile(args: {
  data: Buffer;