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xmlbuilder.pyo
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2003-12-30
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425 lines
# Source Generated with Decompyle++
# File: in.pyo (Python 2.3)
"""Implementation of the DOM Level 3 'LS-Load' feature."""
import copy
import xml.dom as xml
from xml.dom.minicompat import *
from xml.dom.NodeFilter import NodeFilter
__all__ = [
'DOMBuilder',
'DOMEntityResolver',
'DOMInputSource']
class Options:
'''Features object that has variables set for each DOMBuilder feature.
The DOMBuilder class uses an instance of this class to pass settings to
the ExpatBuilder class.
'''
namespaces = 1
namespace_declarations = True
validation = False
external_parameter_entities = True
external_general_entities = True
external_dtd_subset = True
validate_if_schema = False
validate = False
datatype_normalization = False
create_entity_ref_nodes = True
entities = True
whitespace_in_element_content = True
cdata_sections = True
comments = True
charset_overrides_xml_encoding = True
infoset = False
supported_mediatypes_only = False
errorHandler = None
filter = None
class DOMBuilder:
entityResolver = None
errorHandler = None
filter = None
ACTION_REPLACE = 1
ACTION_APPEND_AS_CHILDREN = 2
ACTION_INSERT_AFTER = 3
ACTION_INSERT_BEFORE = 4
_legal_actions = (ACTION_REPLACE, ACTION_APPEND_AS_CHILDREN, ACTION_INSERT_AFTER, ACTION_INSERT_BEFORE)
def __init__(self):
self._options = Options()
def _get_entityResolver(self):
return self.entityResolver
def _set_entityResolver(self, entityResolver):
self.entityResolver = entityResolver
def _get_errorHandler(self):
return self.errorHandler
def _set_errorHandler(self, errorHandler):
self.errorHandler = errorHandler
def _get_filter(self):
return self.filter
def _set_filter(self, filter):
self.filter = filter
def setFeature(self, name, state):
if self.supportsFeature(name):
if not state and 1:
pass
state = 0
try:
settings = self._settings[(_name_xform(name), state)]
except KeyError:
raise xml.dom.NotSupportedErr('unsupported feature: ' + `name`)
for name, value in settings:
setattr(self._options, name, value)
else:
raise xml.dom.NotFoundErr('unknown feature: ' + repr(name))
def supportsFeature(self, name):
return hasattr(self._options, _name_xform(name))
def canSetFeature(self, name, state):
if not state and 1:
pass
key = (_name_xform(name), 0)
return self._settings.has_key(key)
_settings = {
('namespace_declarations', 0): [
('namespace_declarations', 0)],
('namespace_declarations', 1): [
('namespace_declarations', 1)],
('validation', 0): [
('validation', 0)],
('external_general_entities', 0): [
('external_general_entities', 0)],
('external_general_entities', 1): [
('external_general_entities', 1)],
('external_parameter_entities', 0): [
('external_parameter_entities', 0)],
('external_parameter_entities', 1): [
('external_parameter_entities', 1)],
('validate_if_schema', 0): [
('validate_if_schema', 0)],
('create_entity_ref_nodes', 0): [
('create_entity_ref_nodes', 0)],
('create_entity_ref_nodes', 1): [
('create_entity_ref_nodes', 1)],
('entities', 0): [
('create_entity_ref_nodes', 0),
('entities', 0)],
('entities', 1): [
('entities', 1)],
('whitespace_in_element_content', 0): [
('whitespace_in_element_content', 0)],
('whitespace_in_element_content', 1): [
('whitespace_in_element_content', 1)],
('cdata_sections', 0): [
('cdata_sections', 0)],
('cdata_sections', 1): [
('cdata_sections', 1)],
('comments', 0): [
('comments', 0)],
('comments', 1): [
('comments', 1)],
('charset_overrides_xml_encoding', 0): [
('charset_overrides_xml_encoding', 0)],
('charset_overrides_xml_encoding', 1): [
('charset_overrides_xml_encoding', 1)],
('infoset', 0): [],
('infoset', 1): [
('namespace_declarations', 0),
('validate_if_schema', 0),
('create_entity_ref_nodes', 0),
('entities', 0),
('cdata_sections', 0),
('datatype_normalization', 1),
('whitespace_in_element_content', 1),
('comments', 1),
('charset_overrides_xml_encoding', 1)],
('supported_mediatypes_only', 0): [
('supported_mediatypes_only', 0)],
('namespaces', 0): [
('namespaces', 0)],
('namespaces', 1): [
('namespaces', 1)] }
def getFeature(self, name):
xname = _name_xform(name)
try:
return getattr(self._options, xname)
except AttributeError:
if name == 'infoset':
options = self._options
if options.datatype_normalization and options.whitespace_in_element_content and options.comments and options.charset_overrides_xml_encoding:
if not options.namespace_declarations and options.validate_if_schema and options.create_entity_ref_nodes and options.entities:
pass
return not (options.cdata_sections)
raise xml.dom.NotFoundErr('feature %s not known' % repr(name))
def parseURI(self, uri):
if self.entityResolver:
input = self.entityResolver.resolveEntity(None, uri)
else:
input = DOMEntityResolver().resolveEntity(None, uri)
return self.parse(input)
def parse(self, input):
options = copy.copy(self._options)
options.filter = self.filter
options.errorHandler = self.errorHandler
fp = input.byteStream
if fp is None and options.systemId:
import urllib2
fp = urllib2.urlopen(input.systemId)
return self._parse_bytestream(fp, options)
def parseWithContext(self, input, cnode, action):
if action not in self._legal_actions:
raise ValueError('not a legal action')
raise NotImplementedError("Haven't written this yet...")
def _parse_bytestream(self, stream, options):
import xml.dom.expatbuilder as xml
builder = xml.dom.expatbuilder.makeBuilder(options)
return builder.parseFile(stream)
def _name_xform(name):
return name.lower().replace('-', '_')
class DOMEntityResolver(NewStyle):
__slots__ = ('_opener',)
def resolveEntity(self, publicId, systemId):
source = DOMInputSource()
source.publicId = publicId
source.systemId = systemId
source.byteStream = self._get_opener().open(systemId)
source.encoding = self._guess_media_encoding(source)
import posixpath
import urlparse
parts = urlparse.urlparse(systemId)
(scheme, netloc, path, params, query, fragment) = parts
if path and not path.endswith('/'):
path = posixpath.dirname(path) + '/'
parts = (scheme, netloc, path, params, query, fragment)
source.baseURI = urlparse.urlunparse(parts)
return source
def _get_opener(self):
try:
return self._opener
except AttributeError:
self._opener = self._create_opener()
return self._opener
def _create_opener(self):
import urllib2
return urllib2.build_opener()
def _guess_media_encoding(self, source):
info = source.byteStream.info()
if info.has_key('Content-Type'):
for param in info.getplist():
if param.startswith('charset='):
return param.split('=', 1)[1].lower()
continue
class DOMInputSource(NewStyle):
__slots__ = ('byteStream', 'characterStream', 'stringData', 'encoding', 'publicId', 'systemId', 'baseURI')
def __init__(self):
self.byteStream = None
self.characterStream = None
self.stringData = None
self.encoding = None
self.publicId = None
self.systemId = None
self.baseURI = None
def _get_byteStream(self):
return self.byteStream
def _set_byteStream(self, byteStream):
self.byteStream = byteStream
def _get_characterStream(self):
return self.characterStream
def _set_characterStream(self, characterStream):
self.characterStream = characterStream
def _get_stringData(self):
return self.stringData
def _set_stringData(self, data):
self.stringData = data
def _get_encoding(self):
return self.encoding
def _set_encoding(self, encoding):
self.encoding = encoding
def _get_publicId(self):
return self.publicId
def _set_publicId(self, publicId):
self.publicId = publicId
def _get_systemId(self):
return self.systemId
def _set_systemId(self, systemId):
self.systemId = systemId
def _get_baseURI(self):
return self.baseURI
def _set_baseURI(self, uri):
self.baseURI = uri
class DOMBuilderFilter:
'''Element filter which can be used to tailor construction of
a DOM instance.
'''
FILTER_ACCEPT = 1
FILTER_REJECT = 2
FILTER_SKIP = 3
FILTER_INTERRUPT = 4
whatToShow = NodeFilter.SHOW_ALL
def _get_whatToShow(self):
return self.whatToShow
def acceptNode(self, element):
return self.FILTER_ACCEPT
def startContainer(self, element):
return self.FILTER_ACCEPT
del NodeFilter
class DocumentLS:
'''Mixin to create documents that conform to the load/save spec.'''
async = False
def _get_async(self):
return False
def _set_async(self, async):
if async:
raise xml.dom.NotSupportedErr('asynchronous document loading is not supported')
def abort(self):
raise NotImplementedError("haven't figured out what this means yet")
def load(self, uri):
raise NotImplementedError("haven't written this yet")
def loadXML(self, source):
raise NotImplementedError("haven't written this yet")
def saveXML(self, snode):
if snode is None:
snode = self
elif snode.ownerDocument is not self:
raise xml.dom.WrongDocumentErr()
return snode.toxml()
class DOMImplementationLS:
MODE_SYNCHRONOUS = 1
MODE_ASYNCHRONOUS = 2
def createDOMBuilder(self, mode, schemaType):
if schemaType is not None:
raise xml.dom.NotSupportedErr('schemaType not yet supported')
if mode == self.MODE_SYNCHRONOUS:
return DOMBuilder()
if mode == self.MODE_ASYNCHRONOUS:
raise xml.dom.NotSupportedErr('asynchronous builders are not supported')
raise ValueError('unknown value for mode')
def createDOMWriter(self):
raise NotImplementedError("the writer interface hasn't been written yet!")
def createDOMInputSource(self):
return DOMInputSource()