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# $Id$
# Copyright (C) 2007--2008 American Registry for Internet Numbers ("ARIN")
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND ARIN DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
# AND FITNESS. IN NO EVENT SHALL ARIN BE LIABLE FOR ANY SPECIAL, DIRECT,
# INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
# LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
# OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
# PERFORMANCE OF THIS SOFTWARE.
"""Configuration file parsing utilities.
Layered on top of stock Python ConfigParser module.
"""
import ConfigParser
class parser(ConfigParser.RawConfigParser):
def __init__(self, file = None, section = None):
"""Initialize this parser."""
ConfigParser.RawConfigParser.__init__(self)
if file:
self.read(file)
self.default_section = section
def multiget(self, option, section = None):
"""Parse OpenSSL-style foo.0, foo.1, ... subscripted options.
Returns a list of values matching the specified option name.
"""
matches = []
if section is None:
section = self.default_section
if self.has_option(section, option):
matches.append((-1, self.get(option, section = section)))
for key, value in self.items(section):
s = key.rsplit(".", 1)
if len(s) == 2 and s[0] == option and s[1].isdigit():
matches.append((int(s[1]), value))
matches.sort()
return [match[1] for match in matches]
def get(self, option, default = None, section = None):
"""Get an option, perhaps with a default value."""
if section is None:
section = self.default_section
if default is None or self.has_option(section, option):
return ConfigParser.RawConfigParser.get(self, section, option)
else:
return default
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