[SOLVED] Dart/Flutter - Cannot get encoding by name

Dart/Flutter - Cannot get encoding by name

I need to use Code Page 850 Ascii encoding for an issue I have, but not sure how to access/use it in Dart.

Ultimately, I need to convert a hexadecimal string to ascii. The hexadecimal includes special characters that aren't in generic ascii. Which is why I need cp850.

I've tried to access this encoding by calling the Encoding.getByName() function

// returns null
Encoding? encoding = Encoding.getByName('ibm850');

ibm850 appears to be the right name for cp850, based on the character sets accepted for this function.

Any help on this would be greatly appreciated!

Solution

You can use the package charset to encode/decode from/to various different character sets. E.g. you can do the following to decode some bytes encoded in cp850 by doing the following:

import 'package:charset/charset.dart' as charset;

void main() {
  final cp850EncodedMessage = [
    82, 155, 100, 32, 103, 114, 155, 100, 32, 109, 101, //
    100, 32, 102, 108, 155, 100, 101, 32, 112, 134, 33, //
  ];

  print(charset.cp850.decode(cp850EncodedMessage));
  // Rød grød med fløde på!
}