# -*- coding: utf-8 -*-
from __future__ import unicode_literals
# Erik Stein <code@classlibrary.net>, 2016


class Noop(object):
    def process(self, source):
        result = source
        return result


class Placeholder(object):
    def __init__(self, label_text="placeholder"):
        # The label text is intentionally not translated
        self.label_text = label_text

    def process(self, source):
        # Ignore source
        raise NotImplemented