'Extract the "default" alternative to the pose.'

def parse(self):

    args = self.args.strip()
    default = args.startswith('default')
    reset = args.startswith('reset')
    if default:
        args = re.sub('^default', '', args)
    if reset:
        args = re.sub('^reset', '', args)
    target = None
    if ('=' in args):
        (target, args) = [part.strip() for part in args.split('=', 1)]
    self.target = target
    self.reset = reset
    self.default = default
    self.args = args.strip()
