:mod:`cli_demo` provides a framework for interactive demonstrations in a command line interface.

There are various ways to :func:`~cli_demo.options.DemoOptions.register` an option:

• Registering with an expected user response

@options.register("r", "Restart."):
def restart(self):
    ...  # Restart demo

• Registering with an input function key

@options.register("setup"):
def setup_callback(self, response):
    ...  # Process response.

• Setting newline to True

@options.register("h", "Help." newline=True):
def print_help(self):
    print("This is the help text.")
    ...  # Print the help text

>>> Enter an input: h

This is the help text.  # A gap is inserted beforehand.
...

• Setting retry to True

@options.register("echo", retry=True):
def echo_response(self, response):
    print("Got:", response)

>>> Enter an input: hello
Got: hello
>>> Enter an input:  # The input function is called again.

• Setting lock to True

@options.register("o", lock=True):
def print_options(self, key):
    if key == "setup":
        ...  # Print setup options
    elif key == "echo":
        ...  # Print echo options

:class:`~cli_demo.code.CodeDemo` information here.

:class:`~cli_demo.sandbox.SandboxDemo` information here.

cli_demo was written by Han Keong <[email protected]>.