/// <summary>
/// Creates an instance of an Interpreter. Each of the parameters except program is optional..
/// </summary>
/// <param name="program">The program to execute. If this is null, the empty program is executed.</param>
/// <param name="tape">The tape to use as a memory story. If this is null, a default tape is used.</param>
/// <param name="input">The input source to use. If this is null then Console.In is used.</param>
/// <param name="output">The output source to use. If this is null then Console.Out is used.</param>
public Interpreter(IProgram program, Tape tape = null, TextReader input = null, TextWriter output = null)
{
_program = program;
_tape = tape ?? Tape.Default;
_input = input ?? Console.In;
_output = output ?? Console.Out;
}
/// <summary>
/// Executes this instruction within the given context.
/// </summary>
public void Execute(IProgram program, Tape tape, TextReader input, TextWriter output)
{
_action(program, tape, input, output);
}