forked from Mirrors/apostrophe
38 lines
727 B
Python
38 lines
727 B
Python
# -*- coding: utf-8 -*-
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#
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# Poio Tools for Linguists
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#
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# Copyright (C) 2009-2013 Poio Project
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# Author: Peter Bouda <pbouda@cidles.eu>
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# URL: <http://media.cidles.eu/poio/>
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# For license information, see LICENSE
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"""
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Base class for callbacks.
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"""
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from __future__ import absolute_import, unicode_literals
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class Callback(object):
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"""
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Base class for callbacks.
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"""
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def __init__(self):
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self.stream = ""
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self.empty = ""
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def past_stream(self):
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return self.stream
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def future_stream(self):
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return self.empty
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def update(self, character):
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if character == "\b" and len(stream) > 0:
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self.stream[:-1]
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else:
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self.stream += character
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