def help(bot, event, command=None, *args):
valid_user_commands = []
for command_test in sorted(DispatcherSingleton.commands.keys()):
if UtilBot.check_if_can_run_command(bot, event, command_test):
valid_user_commands.append(command_test)
docstring = """
**Current Implemented Commands:**
{}
Use: /<command name> ? or /help <command name> to find more information about the command.
""".format(', '.join(valid_user_commands))
if command == '?' or command is None:
bot.send_message_segments(event.conv, UtilBot.text_to_segments(docstring))
else:
if command in DispatcherSingleton.commands.keys():
func = DispatcherSingleton.commands[command]
if func.__doc__:
bot.send_message_segments(event.conv, UtilBot.text_to_segments(func.__doc__))
else: # Compatibility purposes for the old way of showing help text.
args = ['?']
func(bot, event, *args)
else:
bot.send_message("The command {} is not registered.".format(command))
