#
#  Copyright (c) 2007 Helmut Merz helmutm@cy55.de
#
#  This program 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.
#
#  This program 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 this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

"""
Searchable text support for MS Word (.doc) files.

This uses the wvware command to perform the extraction.

Based on code provided by zc.index and TextIndexNG3.

$Id$
"""

import os, sys

from cybertools.text import base

try:
    from Globals import package_home
    wvConf = os.path.join(package_home(globals()), 'config', 'wvText.xml')
except ImportError:
    wvConf = os.path.join(os.path.dirname(__file__), 'config', 'wvText.xml')


class DocTransform(base.BaseFileTransform):

    extension = ".doc"

    def extract(self, directory, filename):
        if not self.checkAvailable('wvWare', 'wvWare is not available'):
            return u''
        if sys.platform == 'win32':
            data = self.execute('wvWare -c utf-8 --nographics -x "%s" "%s" 2> nul:'
                                % (wvConf, filename))
        else:
            data = self.execute('wvWare -c utf-8 --nographics -x "%s" "%s" 2> /dev/null'
                                % (wvConf, filename))
        return data.decode('UTF-8')
