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BibIndexStringTokenizer.py
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Tue, Nov 5, 15:14

BibIndexStringTokenizer.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2010, 2011, 2012, 2015 CERN.
#
# Invenio is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# Invenio is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Invenio; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""
Abstract BibIndexStringTokenizer.
It is a tokenizer created only for inheritance.
All string based tokenizers should inherit after this tokenizer.
"""
from invenio.modules.indexer.tokenizers.BibIndexTokenizer import BibIndexTokenizer
class BibIndexStringTokenizer(BibIndexTokenizer):
"""
BibIndexStringTokenizer is an abstract tokenizer.
It should be used only for inheritance.
This tokenizer should be a base class for tokenizers
which operates on strings/phrases and splits them
into multiple terms/tokens.
Tokenizing functions take phrase as an argument.
Good examples of StringTokenizer is DeafultTokenizer.
"""
def __init__(self, stemming_language = None, remove_stopwords = False, remove_html_markup = False, remove_latex_markup = False):
"""@param stemming_language: dummy
@param remove_stopwords: dummy
@param remove_html_markup: dummy
@param remove_latex_markup: dummy
"""
pass
def get_tokenizing_function(self, wordtable_type):
"""Picks correct tokenize_for_xxx function depending on type of tokenization (wordtable_type)"""
raise NotImplementedError
def tokenize_for_words(self, phrase):
raise NotImplementedError
def tokenize_for_pairs(self, phrase):
raise NotImplementedError
def tokenize_for_phrases(self, phrase):
raise NotImplementedError

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