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# -*- coding: utf-8 -*-
# Copyright © 2005 Lateef Alabi-Oki
#
# This file is part of Scribes.
#
# Scribes 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.
#
# Scribes 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 Scribes; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301
# USA
"""
This module documents functions to store and get a list of encodings to
display in the open/save dialog.
@author: Lateef Alabi-Oki
@organization: The Scribes Project
@copyright: Copyright © 2005 Lateef Alabi-Oki
@license: GNU GPLv2 or Later
@contact: mystilleef@gmail.com
"""
def open_database(flag="c"):
"""
Open encoding database.
@return: A database object representing the encoding database.
@rtype: A database Shelve object.
"""
from SCRIBES.info import metadata_folder
from os.path import exists, join
preference_folder = join(metadata_folder, "Preferences")
if not exists(preference_folder):
from os import makedirs
makedirs(preference_folder)
database_file = join(preference_folder, "EncodedFiles.gdb")
from shelve import open
from anydbm import error
try:
database = open(database_file, flag=flag, writeback=False)
except error:
database = open(database_file, flag="n", writeback=False)
return database
def get_value(uri):
"""
Get encoding of a file.
@return: Encoding of a file.
@rtype: A String object.
"""
try:
value = None
database = open_database("r")
value = database[str(uri)]
except KeyError:
pass
finally:
database.close()
return value
def set_value(uri, encoding):
"""
Set encoding of a file.
@param uri: Reference to a file..
@type value: A string.
@param encoding: Encoding of a file.
@type encoding: A string object.
"""
try:
database = open_database("w")
database[str(uri)] = encoding
finally:
database.close()
return
def remove_value(uri):
"""
Remove information about encoding of a file.
@param uri: Reference to a file.
@type uri: A String object.
"""
try:
database = open_database("w")
del database[str(uri)]
except KeyError:
pass
finally:
database.close()
return
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