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BibIndexAuthorCountTokenizer.py
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Sat, Feb 22, 14:24

BibIndexAuthorCountTokenizer.py
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# -*- coding:utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2010, 2011, 2012 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.
"""BibIndexAuthorCountTokenizer: counts number of authors for any publication
given by recID. Will look at tags: '100_a' and '700_a' which are:
'first author name' and 'additional author name'.
"""
from invenio.bibindex_engine_utils import get_field_count
from invenio.bibindex_tokenizers.BibIndexEmptyTokenizer import BibIndexEmptyTokenizer
class BibIndexAuthorCountTokenizer(BibIndexEmptyTokenizer):
"""
Returns a number of authors who created a publication with given recID in the database.
"""
def __init__(self, stemming_language = None, remove_stopwords = False, remove_html_markup = False, remove_latex_markup = False):
self.tags = ['100__a', '700__a']
def tokenize(self, recID):
"""Uses get_field_count from bibindex_engine_utils
for finding a number of authors of a publication and pass it in the list"""
return [str(get_field_count(recID, self.tags)),]
def get_tokenizing_function(self, wordtable_type):
return self.tokenize

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