All files / src encoding.ts

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  import { Buffer } from './internal/buffer';
import * as errors from './internal/errors';
 
export type TDataOut = string | Buffer; // Data formats we give back to users.
export type TEncodingExtended = BufferEncoding | 'buffer';
 
export const ENCODING_UTF8: BufferEncoding = 'utf8';
 
export function assertEncoding(encoding: string | undefined) {
  if (encoding && !Buffer.isEncoding(encoding)) throw new errors.TypeError('ERR_INVALID_OPT_VALUE_ENCODING', encoding);
}
 
export function strToEncoding(str: string, encoding?: TEncodingExtended): TDataOut {
  if (!encoding || encoding === ENCODING_UTF8) return str; // UTF-8
  Iif (encoding === 'buffer') return new Buffer(str); // `buffer` encoding
  return new Buffer(str).toString(encoding); // Custom encoding
}