# -*- encoding: utf-8 -*-
# License: FreeBSD License or The BSD 2-Clause License
# Copyright (c) 2012, Leo Jiang
# All rights reserved.
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
# Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
# Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
# Author: Leo Jiang <leo.jiang.dev@gmail.com>
# pylint: disable=I0011,C0301,C0103
"""
Tokenizer Module for Japanese Segmenter Chasen
"""
import codecs
import os.path
import sys
from subprocess import call
[docs]def tokenize(infile, outfile, lang, tools, step): # pylint: disable=I0011,W0613
"""Call chasen (Japanese Segmenter) for Japanese text.
:param infile: input filename.
:param outfile: output filename.
:param lang: language of corpus.
:param tools: external tools configuration.
"""
script = os.path.join(tools["chasen.path"], 'chasen')
rcfile = os.path.join(tools["chasen.path"], 'chasenrc')
in_fp = codecs.open(infile, 'r', 'utf-8')
out_fp = codecs.open(outfile, 'w', 'utf-8')
try:
ret = call([script, "-r", rcfile, "-i", "w"], stdin=in_fp, stdout=out_fp)
except OSError as e:
print e, ":", script
sys.exit(e.errno)
finally:
in_fp.close()
out_fp.close()
return ret