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#!/usr/bin/env python
# coding=utf-8
"""
A simple application using cmd2 which demonstrates 8 key features:
* Settings
* Commands
* Argument Parsing
* Generating Output
* Help
* Shortcuts
* Multiline Commands
* History
"""
import argparse
import cmd2
class FirstApp(cmd2.Cmd):
"""A simple cmd2 application."""
def __init__(self):
shortcuts = cmd2.DEFAULT_SHORTCUTS
shortcuts.update({'&': 'speak'})
super().__init__(multiline_commands=['orate'], shortcuts=shortcuts)
# Make maxrepeats settable at runtime
self.maxrepeats = 3
self.add_settable(cmd2.Settable('maxrepeats', int, 'max repetitions for speak command', self))
speak_parser = argparse.ArgumentParser()
speak_parser.add_argument('-p', '--piglatin', action='store_true', help='atinLay')
speak_parser.add_argument('-s', '--shout', action='store_true', help='N00B EMULATION MODE')
speak_parser.add_argument('-r', '--repeat', type=int, help='output [n] times')
speak_parser.add_argument('words', nargs='+', help='words to say')
@cmd2.with_argparser(speak_parser)
def do_speak(self, args):
"""Repeats what you tell me to."""
words = []
for word in args.words:
if args.piglatin:
word = '%s%say' % (word[1:], word[0])
if args.shout:
word = word.upper()
words.append(word)
repetitions = args.repeat or 1
for _ in range(min(repetitions, self.maxrepeats)):
# .poutput handles newlines, and accommodates output redirection too
self.poutput(' '.join(words))
# orate is a synonym for speak which takes multiline input
do_orate = do_speak
if __name__ == '__main__':
import sys
c = FirstApp()
sys.exit(c.cmdloop())
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