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R3600/modules/bibindex/lib/tokenizers/BibIndexFilenameTokenizer.py
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BibIndexFilenameTokenizer.py
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# -*- coding:utf-8 -*-
##
## This file is part of Invenio.
## Copyright (C) 2010, 2011, 2012, 2013 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.
"""BibIndexFilenameTokenizer: 'tokenizes' finds file names.
Tokenizer is adapted to work with bibfield and its get_record function.
"""
from invenio.bibindex_tokenizers.BibIndexRecJsonTokenizer import BibIndexRecJsonTokenizer
class BibIndexFilenameTokenizer(BibIndexRecJsonTokenizer):
"""
Tokenizes for file names.
Tokenizer is adapted to work with bibfield and its get_record function.
It accepts as an input a record created by a get_record function:
from bibfield import get_record
record16 = get_record(16)
tokenizer = BibIndexFilenameTokenizer()
new_words = tokenizer.tokenize(record16)
Example of new_words:
'thesis.ps.gz' -> ['thesis', 'thesis.ps', 'thesis.ps.gz']
"""
def __init__(self, stemming_language = None,
remove_stopwords = False,
remove_html_markup = False,
remove_latex_markup = False):
pass
def tokenize(self, record):
"""'record' is a recjson record from bibfield.
Function uses derived field 'filenames'
from the record.
@param urls: recjson record
"""
values = []
try:
if 'filenames' in record:
values = record['filenames']
except KeyError:
pass
except TypeError:
return []
return values
def get_tokenizing_function(self, wordtable_type):
return self.tokenize
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