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"""functions that directly handle user input
"""
import time
from askbot.utils import path
def choice_dialog(prompt_phrase, choices = None, invalid_phrase = None):
"""prints a prompt, accepts keyboard input
and makes sure that user response is one of given
in the choices argument, which is required
and must be a list
invalid_phrase must be a string with %(opt_string)s
placeholder
"""
assert(hasattr(choices, '__iter__'))
assert(not isinstance(choices, basestring))
while 1:
response = raw_input('\n%s (type %s): ' % (prompt_phrase, '/'.join(choices)))
if response in choices:
return response
elif invalid_phrase != None:
opt_string = ','.join(choices)
print invalid_phrase % {'opt_string': opt_string}
time.sleep(1)
def open_new_file(prompt_phrase, extension = '', hint = None):
"""will ask for a file name to be typed
by user into the console path to the file can be
either relative or absolute. Extension will be appended
to the given file name.
Return value is the file object.
"""
if extension != '':
if extension[0] != '.':
extension = '.' + extension
else:
extension = ''
file_object = None
if hint:
file_path = path.extend_file_name(hint, extension)
file_object = path.create_file_if_does_not_exist(file_path, print_warning = True)
while file_object == None:
file_path = raw_input(prompt_phrase)
file_path = path.extend_file_name(file_path, extension)
file_object = path.create_file_if_does_not_exist(file_path, print_warning = True)
return file_object
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