gam.py 文件源码

def getChoice(choices, **opts):
  if Cmd.ArgumentsRemaining():
    choice = Cmd.Current().strip().lower()
    if choice:
      if choice in opts.get(CHOICE_ALIASES, []):
        choice = opts[CHOICE_ALIASES][choice]
      if choice not in choices:
        choice = choice.replace(u'_', u'').replace(u'-', u'')
        if choice in opts.get(CHOICE_ALIASES, []):
          choice = opts[CHOICE_ALIASES][choice]
      if choice in choices:
        Cmd.Advance()
        return choice if not opts.get(MAP_CHOICE, False) else choices[choice]
    if opts.get(DEFAULT_CHOICE, NO_DEFAULT) != NO_DEFAULT:
      return opts[DEFAULT_CHOICE]
    invalidChoiceExit(choices, False)
  elif opts.get(DEFAULT_CHOICE, NO_DEFAULT) != NO_DEFAULT:
    return opts[DEFAULT_CHOICE]
  missingChoiceExit(choices)