public bool Close()
{
bool result;
if (result = this.backend.NotNull() && this.backend.Close())
this.backend = null;
return result;
}
public async Tasks.Task <bool> Close()
{
bool result;
if (result = this.backend.NotNull() && await this.backend.Close())
{
this.backend = null;
}
return(result);
}
protected TextReader(ICharacterInDevice backend)
{
this.backend = backend;
this.Position = Tasks.Task.FromResult(new Text.Position(0, 0));
}
public static ITextReader Open(ICharacterInDevice backend)
{
return(backend.NotNull() ? new TextReader(backend) : null);
}
public static ICharacterInDevice Open(ICharacterInDevice backend)
{
return backend.NotNull() ? new CharacterInDevice(backend) : null;
}
protected CharacterInDevice(ICharacterInDevice backend)
{
this.backend = backend;
}
public static ICharacterInDevice Open(ICharacterInDevice backend, Func<Func<char?>, char[]> filter)
{
return backend.NotNull() ? new CharacterInDevice(backend) { Filter = filter } : null;
}
protected CharacterReader(ICharacterInDevice backend)
{
this.backend = backend;
this.Row = 1;
}
