isCharacterAZ method

bool isCharacterAZ()

isCharacterAZ returns true if the keyEvent.character is printable.

Implementation

bool isCharacterAZ() {
  String chars = characterCharacter();
  if (chars.isEmpty) {
    return (false);
  }
  for (var char in chars.runes) {
    if (char <= 31) {
      return (false);
    }
    if (char >= 127 && char <= 159) {
      return (false);
    }
  }
  return (true);
}