setMirror method
Prepare the parser for a mirrored operation. This flag has effect only on the {@link #readFormatInformation()} and the {@link #readVersion()}. Before proceeding with {@link #readCodewords()} the {@link #mirror()} method should be called.
@param mirror Whether to read version and format information mirrored.
Implementation
void setMirror(bool mirror) {
_parsedVersion = null;
_parsedFormatInfo = null;
_isMirror = mirror;
}