workin on ...

git-svn-id: http://svn.brehm-online.com/svn/my-stuff/python/IscConfigParser/trunk@187 ec8d2aa5-1599-4edb-8739-2b3a1bc399aa

diff --git a/IscConfigParser.py b/IscConfigParser.py
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+++ b/IscConfigParser.py
@@ -0,0 +1,144 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+# $Id$
+# $URL$
+
+'''
+@author: Frank Brehm
+@contact: frank@brehm-online.com
+@license: GPL3
+@copyright: (c) 2010-2011 by Frank Brehm, Berlin
+@version: 0.1.0
+@summary: This module provides a parser for configuration files in ISC style (for example named.conf)
+'''
+
+import re
+import pprint
+import os.path
+import sys
+
+from fbrehm.common.logging_obj import LoggingObject
+
+revision = '$Revision$'
+revision = re.sub( r'\$', '', revision )
+revision = re.sub( r'Revision: ', r'r', revision )
+
+__author__    = 'Frank Brehm'
+__copyright__ = '(C) 2010 by Frank Brehm, Berlin'
+__contact__    = 'frank@brehm-online.com'
+__version__    = '0.1.0 ' + revision
+__license__    = 'GPL3'
+
+#========================================================================
+class IscConfigParserError(Exception):
+    """Base class for exceptions in this module."""
+    pass
+
+#========================================================================
+class IscConfigParser(LoggingObject):
+    """Class for encapsulation of a low level hardware address.
+    """
+
+    #------------------------------------------------------
+    def __init__( self, verbose = 0, ):
+        """Constructor.
+           @param verbose: verbosity level (default: 0)
+           @type verbose: int
+           @return: None
+           @rtype: None
+        """
+
+        super( IscConfigParser, self ).__init__( verbose = verbose )
+
+        self.current_filename = None
+
+        # Other properties
+
+    #------------------------------------------------------
+    def parse( self, input, filename = None ):
+        """Read a file in a ISC-like config style.
+
+           The input can be either a file-like object or a string. If a string
+           is used you can optionally also provide a filename, which will be
+           used for raised exceptions.
+
+           The contents from the file is returned as a standard python dictionary.
+
+           @param input: file-like object or a string
+           @type input: str
+           @param filename: filename for debugging and error messages
+           @type filename: str or None
+           @return: the contents from the file as a standard python dictionary
+           @rtype: dict
+        """
+
+        result = {}
+
+        if filename is not None and not os.path.isfile( filename ):
+            raise IscConfigParserError( "File {0!r} not found.".format( filename ) )
+
+        fd = None
+        if filename is not None:
+            fd = open( filename, "r" )
+            self.current_filename = filename
+        else:
+            fs = sys.stdin
+            self.current_filename = '<stdin>'
+
+        self.logger.debug( "Reading configuration file {0!r} ...".format( self.current_filename ) )
+
+
+        if filename is not None:
+            fd.close()
+
+        return result
+
+
+#========================================================================
+
+def parse_isc_config( input, filename = None, verbose = 0 ):
+    '''Wrapper for IscConfigParser.parse()
+
+       @param input: file-like object or a string
+       @type input: str
+       @param filename: filename for debugging and error messages
+       @type filename: str or None
+       @param verbose: verbosity level (default: 0)
+       @type verbose: int
+       @return: the contents from the file as a standard python dictionary
+       @rtype: dict
+    '''
+
+    parser = IscConfigParser( verbose = verbose )
+    return parser.parse( input, filename = filename )
+
+#========================================================================
+
+if __name__ == "__main__":
+
+    opt_parser = BaseOptParser(
+        version     = __version__,
+        prog        = 'ipv6-hostpart.py',
+        description = u'Calculates the 64 bit host part of an IPv6 address by given MAC addresses or infiniband GUIDs.',
+        usage       = u'%s [Options] <MAC address or IB-GUID> [<MAC> ...]'
+    )
+
+    opt_parser.getOpts()
+
+    verbose = opt_parser.options.verbose
+
+    files = []
+    if len( sys.argv ) > 0:
+        files = sys.argv[1:]
+    else:
+        files = os.sep + os.path.join( 'etc', 'bind', 'named.conf' )
+
+    for conffile in files:
+        conf = parse_isc_config( conffile, 
+
+    
+
+#========================================================================
+
+# vim: fileencoding=utf-8 filetype=python ts=4 expandtab