fixMirroredCharacters method Null safety
L4. A character is depicted by a mirrored glyph if and only if (a) the resolved directionality of that character is R, and (b) the Bidi_Mirrored property value of that character is true.
Implementation
void fixMirroredCharacters() {
for (int i = 0; i < _textData.length; ++i) {
if ((_textData[i]._el & 1) == 1) {
_textData[i]._char = _getBidiCharacterMirror(_textData[i]._char);
}
}
}