# -*- coding: utf-8 -*-
"""Define constant values used thoughout the project."""

PADDING_TOKEN = u'<Padding>'
UNKNOWN_TOKEN = u'<UNK>'
START_OF_SENTENCE_TOKEN = u'<SOS>'
END_OF_SENTENCE_TOKEN = u'<EOS>'

PADDING_ID = 0
UNKNOWN_ID = 1
START_OF_SENTENCE_ID = 2
END_OF_SENTENCE_ID = 3

PAD_FORMAT_PREFIX = u'prefix'
PAD_FORMAT_NORMAL = u'normal'

TRAIN_KEY = u'train'
PREDICT_KEY = u'predict'
SERVER_KEY = u'server'
