Dart

MIME Header Q and B Encoding and Decoding

See more Encryption Examples

Demonstrates how to Q and B encode/decode. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final sb = CkStringBuilder();

  sb.append('This is a test');

  print(sb.getEncoded('B', 'utf-8'));
  // output is:
  // =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=

  print(sb.getEncoded('Q', 'iso-8859-1'));
  // output is:
  // =?utf-8?Q?This_is_a_test?=

  final sb2 = CkStringBuilder();

  sb2.append('=?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=');
  sb2.decode('B', 'utf-8');
  print(sb2.getAsString());

  // output is:
  // This is a test

  sb2.clear();
  sb2.append('=?utf-8?Q?This_is_a_test?=');
  sb2.decode('Q', 'utf-8');
  print(sb2.getAsString());

  // output is:
  // This is a test

  // "B" or "Q" will decode both B and Q.
  sb2.clear();
  sb2.append('=?utf-8?Q?This_is_a_test?= 123 =?utf-8?B?VGhpcyBpcyBhIHRlc3Q=?=');
  sb2.decode('Q', 'utf-8');
  print(sb2.getAsString());

  // output is:
  // This is a test 123 This is a test
}