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attrlist.py

# This program is free software; you can redistribute it and/or modify
# it under the terms of the (LGPL) GNU Lesser General Public License as
# published by the Free Software Foundation; either version 3 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 Library Lesser General Public License for more details at
# ( http://www.gnu.org/licenses/lgpl.html ).
#
# You should have received a copy of the GNU Lesser 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.
# written by: Jeff Ortel ( jortel@redhat.com )

"""
Provides filtered attribute list classes.
"""

from suds import *
from suds.umx import *
from suds.sax import Namespace


00026 class AttrList:
    """
    A filtered attribute list.
    Items are included during iteration if they are in either the (xs) or
    (xml) namespaces.
    @ivar raw: The I{raw} attribute list.
    @type raw: list
    """
00034     def __init__(self, attributes):
        """
        @param attributes: A list of attributes
        @type attributes: list
        """
        self.raw = attributes
        
00041     def real(self):
        """
        Get list of I{real} attributes which exclude xs and xml attributes.
        @return: A list of I{real} attributes.
        @rtype: I{generator}
        """
        for a in self.raw:
            if self.skip(a): continue
            yield a
            
00051     def rlen(self):
        """
        Get the number of I{real} attributes which exclude xs and xml attributes.
        @return: A count of I{real} attributes. 
        @rtype: L{int}
        """
        n = 0
        for a in self.real():
            n += 1
        return n
            
00062     def lang(self):
        """
        Get list of I{filtered} attributes which exclude xs.
        @return: A list of I{filtered} attributes.
        @rtype: I{generator}
        """
        for a in self.raw:
            if a.qname() == 'xml:lang':
                return a.value
            return None

00073     def skip(self, attr):
        """
        Get whether to skip (filter-out) the specified attribute.
        @param attr: An attribute.
        @type attr: I{Attribute}
        @return: True if should be skipped.
        @rtype: bool
        """
        ns = attr.namespace()
        skip = (
            Namespace.xmlns[1],
            'http://schemas.xmlsoap.org/soap/encoding/',
            'http://schemas.xmlsoap.org/soap/envelope/',
            'http://www.w3.org/2003/05/soap-envelope',
        )
        return ( Namespace.xs(ns) or ns[1] in skip )

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