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#!/usr/bin/env python
# coding=utf-8
"""A simple example demonstrating how to use flag and index based tab-completion functions
"""
import argparse
import functools
import cmd2
from cmd2 import with_argparser, with_argument_list, flag_based_complete, index_based_complete, path_complete
# List of strings used with flag and index based completion functions
food_item_strs = ['Pizza', 'Hamburger', 'Ham', 'Potato']
sport_item_strs = ['Bat', 'Basket', 'Basketball', 'Football']
# Dictionary used with flag based completion functions
flag_dict = \
{
'-f': food_item_strs, # Tab-complete food items after -f flag in command line
'--food': food_item_strs, # Tab-complete food items after --food flag in command line
'-s': sport_item_strs, # Tab-complete sport items after -s flag in command line
'--sport': sport_item_strs, # Tab-complete sport items after --sport flag in command line
'-o': path_complete, # Tab-complete using path_complete function after -o flag in command line
'--other': path_complete, # Tab-complete using path_complete function after --other flag in command line
}
# Dictionary used with index based completion functions
index_dict = \
{
1: food_item_strs, # Tab-complete food items at index 1 in command line
2: sport_item_strs, # Tab-complete sport items at index 2 in command line
3: path_complete, # Tab-complete using path_complete function at index 3 in command line
}
class TabCompleteExample(cmd2.Cmd):
""" Example cmd2 application where we a base command which has a couple subcommands."""
def __init__(self):
cmd2.Cmd.__init__(self)
add_item_parser = argparse.ArgumentParser()
add_item_group = add_item_parser.add_mutually_exclusive_group()
add_item_group.add_argument('-f', '--food', help='Adds food item')
add_item_group.add_argument('-s', '--sport', help='Adds sport item')
add_item_group.add_argument('-o', '--other', help='Adds other item')
@with_argparser(add_item_parser)
def do_add_item(self, args):
"""Add item command help"""
if args.food:
add_item = args.food
elif args.sport:
add_item = args.sport
elif args.other:
add_item = args.other
else:
add_item = 'no items'
self.poutput("You added {}".format(add_item))
# Add flag-based tab-completion to add_item command
complete_add_item = functools.partial(flag_based_complete, flag_dict=flag_dict)
@with_argument_list
def do_list_item(self, args):
"""List item command help"""
self.poutput("You listed {}".format(args))
# Add index-based tab-completion to list_item command
complete_list_item = functools.partial(index_based_complete, index_dict=index_dict)
if __name__ == '__main__':
app = TabCompleteExample()
app.cmdloop()
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