blob: 9578da2b10c1ac51a78f914fe36afd766901c9af [file] [log] [blame]
from xml.dom import minidom, Node, XML_NAMESPACE, XMLNS_NAMESPACE
try:
from types import ModuleType
except:
from new import module as ModuleType
import re
import weakref
import _base
from html5lib import constants, ihatexml
from html5lib.constants import namespaces
moduleCache = {}
def getDomModule(DomImplementation):
name = "_" + DomImplementation.__name__+"builder"
if name in moduleCache:
return moduleCache[name]
else:
mod = ModuleType(name)
objs = getDomBuilder(DomImplementation)
mod.__dict__.update(objs)
moduleCache[name] = mod
return mod
def getDomBuilder(DomImplementation):
Dom = DomImplementation
class AttrList(object):
def __init__(self, element):
self.element = element
def __iter__(self):
return self.element.attributes.items().__iter__()
def __setitem__(self, name, value):
self.element.setAttribute(name, value)
def __len__(self):
return len(self.element.attributes.items())
def items(self):
return [(item[0], item[1]) for item in
self.element.attributes.items()]
def keys(self):
return self.element.attributes.keys()
def __getitem__(self, name):
return self.element.getAttribute(name)
def __contains__(self, name):
if isinstance(name, tuple):
raise NotImplementedError
else:
return self.element.hasAttribute(name)
class NodeBuilder(_base.Node):
def __init__(self, element):
_base.Node.__init__(self, element.nodeName)
self.element = element
namespace = property(lambda self:hasattr(self.element, "namespaceURI")
and self.element.namespaceURI or None)
def appendChild(self, node):
node.parent = self
self.element.appendChild(node.element)
def insertText(self, data, insertBefore=None):
text = self.element.ownerDocument.createTextNode(data)
if insertBefore:
self.element.insertBefore(text, insertBefore.element)
else:
self.element.appendChild(text)
def insertBefore(self, node, refNode):
self.element.insertBefore(node.element, refNode.element)
node.parent = self
def removeChild(self, node):
if node.element.parentNode == self.element:
self.element.removeChild(node.element)
node.parent = None
def reparentChildren(self, newParent):
while self.element.hasChildNodes():
child = self.element.firstChild
self.element.removeChild(child)
newParent.element.appendChild(child)
self.childNodes = []
def getAttributes(self):
return AttrList(self.element)
def setAttributes(self, attributes):
if attributes:
for name, value in attributes.items():
if isinstance(name, tuple):
if name[0] is not None:
qualifiedName = (name[0] + ":" + name[1])
else:
qualifiedName = name[1]
self.element.setAttributeNS(name[2], qualifiedName,
value)
else:
self.element.setAttribute(
name, value)
attributes = property(getAttributes, setAttributes)
def cloneNode(self):
return NodeBuilder(self.element.cloneNode(False))
def hasContent(self):
return self.element.hasChildNodes()
def getNameTuple(self):
if self.namespace == None:
return namespaces["html"], self.name
else:
return self.namespace, self.name
nameTuple = property(getNameTuple)
class TreeBuilder(_base.TreeBuilder):
def documentClass(self):
self.dom = Dom.getDOMImplementation().createDocument(None,None,None)
return weakref.proxy(self)
def insertDoctype(self, token):
name = token["name"]
publicId = token["publicId"]
systemId = token["systemId"]
domimpl = Dom.getDOMImplementation()
doctype = domimpl.createDocumentType(name, publicId, systemId)
self.document.appendChild(NodeBuilder(doctype))
if Dom == minidom:
doctype.ownerDocument = self.dom
def elementClass(self, name, namespace=None):
if namespace is None and self.defaultNamespace is None:
node = self.dom.createElement(name)
else:
node = self.dom.createElementNS(namespace, name)
return NodeBuilder(node)
def commentClass(self, data):
return NodeBuilder(self.dom.createComment(data))
def fragmentClass(self):
return NodeBuilder(self.dom.createDocumentFragment())
def appendChild(self, node):
self.dom.appendChild(node.element)
def testSerializer(self, element):
return testSerializer(element)
def getDocument(self):
return self.dom
def getFragment(self):
return _base.TreeBuilder.getFragment(self).element
def insertText(self, data, parent=None):
data=data
if parent <> self:
_base.TreeBuilder.insertText(self, data, parent)
else:
# HACK: allow text nodes as children of the document node
if hasattr(self.dom, '_child_node_types'):
if not Node.TEXT_NODE in self.dom._child_node_types:
self.dom._child_node_types=list(self.dom._child_node_types)
self.dom._child_node_types.append(Node.TEXT_NODE)
self.dom.appendChild(self.dom.createTextNode(data))
name = None
def testSerializer(element):
element.normalize()
rv = []
def serializeElement(element, indent=0):
if element.nodeType == Node.DOCUMENT_TYPE_NODE:
if element.name:
if element.publicId or element.systemId:
publicId = element.publicId or ""
systemId = element.systemId or ""
rv.append( """|%s<!DOCTYPE %s "%s" "%s">"""%(
' '*indent, element.name, publicId, systemId))
else:
rv.append("|%s<!DOCTYPE %s>"%(' '*indent, element.name))
else:
rv.append("|%s<!DOCTYPE >"%(' '*indent,))
elif element.nodeType == Node.DOCUMENT_NODE:
rv.append("#document")
elif element.nodeType == Node.DOCUMENT_FRAGMENT_NODE:
rv.append("#document-fragment")
elif element.nodeType == Node.COMMENT_NODE:
rv.append("|%s<!-- %s -->"%(' '*indent, element.nodeValue))
elif element.nodeType == Node.TEXT_NODE:
rv.append("|%s\"%s\"" %(' '*indent, element.nodeValue))
else:
if (hasattr(element, "namespaceURI") and
element.namespaceURI != None):
name = "%s %s"%(constants.prefixes[element.namespaceURI],
element.nodeName)
else:
name = element.nodeName
rv.append("|%s<%s>"%(' '*indent, name))
if element.hasAttributes():
attributes = []
for i in range(len(element.attributes)):
attr = element.attributes.item(i)
name = attr.nodeName
value = attr.value
ns = attr.namespaceURI
if ns:
name = "%s %s"%(constants.prefixes[ns], attr.localName)
else:
name = attr.nodeName
attributes.append((name, value))
for name, value in sorted(attributes):
rv.append('|%s%s="%s"' % (' '*(indent+2), name, value))
indent += 2
for child in element.childNodes:
serializeElement(child, indent)
serializeElement(element, 0)
return "\n".join(rv)
def dom2sax(node, handler, nsmap={'xml':XML_NAMESPACE}):
if node.nodeType == Node.ELEMENT_NODE:
if not nsmap:
handler.startElement(node.nodeName, node.attributes)
for child in node.childNodes: dom2sax(child, handler, nsmap)
handler.endElement(node.nodeName)
else:
attributes = dict(node.attributes.itemsNS())
# gather namespace declarations
prefixes = []
for attrname in node.attributes.keys():
attr = node.getAttributeNode(attrname)
if (attr.namespaceURI == XMLNS_NAMESPACE or
(attr.namespaceURI == None and attr.nodeName.startswith('xmlns'))):
prefix = (attr.nodeName != 'xmlns' and attr.nodeName or None)
handler.startPrefixMapping(prefix, attr.nodeValue)
prefixes.append(prefix)
nsmap = nsmap.copy()
nsmap[prefix] = attr.nodeValue
del attributes[(attr.namespaceURI, attr.nodeName)]
# apply namespace declarations
for attrname in node.attributes.keys():
attr = node.getAttributeNode(attrname)
if attr.namespaceURI == None and ':' in attr.nodeName:
prefix = attr.nodeName.split(':')[0]
if nsmap.has_key(prefix):
del attributes[(attr.namespaceURI, attr.nodeName)]
attributes[(nsmap[prefix],attr.nodeName)]=attr.nodeValue
# SAX events
ns = node.namespaceURI or nsmap.get(None,None)
handler.startElementNS((ns,node.nodeName), node.nodeName, attributes)
for child in node.childNodes: dom2sax(child, handler, nsmap)
handler.endElementNS((ns, node.nodeName), node.nodeName)
for prefix in prefixes: handler.endPrefixMapping(prefix)
elif node.nodeType in [Node.TEXT_NODE, Node.CDATA_SECTION_NODE]:
handler.characters(node.nodeValue)
elif node.nodeType == Node.DOCUMENT_NODE:
handler.startDocument()
for child in node.childNodes: dom2sax(child, handler, nsmap)
handler.endDocument()
elif node.nodeType == Node.DOCUMENT_FRAGMENT_NODE:
for child in node.childNodes: dom2sax(child, handler, nsmap)
else:
# ATTRIBUTE_NODE
# ENTITY_NODE
# PROCESSING_INSTRUCTION_NODE
# COMMENT_NODE
# DOCUMENT_TYPE_NODE
# NOTATION_NODE
pass
return locals()
# Keep backwards compatibility with things that directly load
# classes/functions from this module
for key, value in getDomModule(minidom).__dict__.items():
globals()[key] = value