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# Copyright (C) 2010 Leonard Thomas
#
# This file is part of Dodai.
#
# Dodai 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 3 of the License, or
# (at your option) any later version.
#
# Dodai 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 Dodai. If not, see <http://www.gnu.org/licenses/>.
import unicodedata
class ConfigSections(object):
"""
An iterable object that contains ConfigSection objects
"""
def __init__(self, string_object = None):
"""
Iterable object that handles the conversion of a config
parser object to a list of section objects.
string_object: This is an object (non instantiated or
callable) that the results of the config's
sections, and options will be stored in.
This enables you to store your values as a
custom object. A good object to use is the
dodai.tools.himo Himo object. If the
string_object is not given the default python
str() object will be used. The callable of
this object must also allow for encoding
to be passed in string_object(data, 'UTF-8')
"""
self._string_object = string_object or None
self._sections = {}
def __call__(self, parser, encoding=None):
"""
Parses the given parser object into this object's sections.
parser: The actual parser object that is used to
get the sections. This object must have
the sections(), options() and get()
methods. A good object to use is the native
ConfigParse object. However, you can create
your own
"""
self._build_sections(parser, encoding)
def _build_sections(self, parser, encoding):
# Builds ConfigSection objects from the parser object
for section_name in parser.sections():
section = self.get_section(section_name, encoding)
self._build_options(parser, section_name, section, encoding)
def _build_options(self, parser, section_name, section, encoding):
# Adds the options to the section object
for key in parser.options(section_name):
key = self._build_string_object(key, encoding)
value = self._build_string_object(parser.get(section_name, key),
encoding)
setattr(section, key, value)
def _build_string_object(self, data, encoding=None):
if self._string_object:
return self._string_object(data, encoding)
else:
return data
def get_section(self, section_name, encoding=None):
"""
Returns a ConfigSection object from this object's section
dictionary or creates a new ConfigSection object, which is
stored int this object's section dictionary then is returned
"""
section_name = self._build_string_object(section_name, encoding)
if section_name in self._sections:
return self._sections[section_name]
else:
section = ConfigSection(section_name)
self._sections[section_name] = section
return section
def __getitem__(self, key):
key = normalize_key(key)
return self._sections[key]
def __getattr__(self, key):
key = normalize_key(key)
try:
out = self._sections[key]
except KeyError:
return getattr(self._sections, key)
else:
return out
def __iter__(self, *args, **kargs):
return self._sections.__iter__(*args, **kargs)
def __len__(self):
return len(self._sections)
class ConfigSection(object):
"""
A generic object to hold keys and values primarily from a config file
"""
def __init__(self, title):
"""
Holds keys and values primarily from a section of a config file
title: The title of the section of the config file
"""
self.___title___ = title
self.___options___ = {}
def get_title(self):
"""
Returns the title of the section
"""
return self.___title___
def __setattr__(self, key, value):
if key.startswith('___') and key.endswith('___'):
object.__setattr__(self, key, value)
else:
key = normalize_key(key)
if self.___options___.has_key(key):
self.___options___[key] = value
else:
dict.__setitem__(self.___options___, key, value)
def __getattr__(self, key):
if key.startswith('___') and key.endswith('___'):
return self.__dict__[key]
else:
key = normalize_key(key)
try:
out = self.___options___[key]
except KeyError:
return getattr(self.___options___, key)
else:
return out
def __getitem__(self, key):
key = normalize_key(key)
return self.___options___[key]
def __iter__(self, *args, **kargs):
return self.___options___.__iter__(*args, **kargs)
def normalize_key(key):
key = unicode(key)
key = unicodedata.normalize('NFC', key)
return key
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