You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
341 lines
12 KiB
Python
341 lines
12 KiB
Python
from __future__ import absolute_import, division, unicode_literals
|
|
# pylint:disable=protected-access
|
|
|
|
from six import text_type
|
|
|
|
import re
|
|
|
|
from . import base
|
|
from .. import _ihatexml
|
|
from .. import constants
|
|
from ..constants import namespaces
|
|
from .._utils import moduleFactoryFactory
|
|
|
|
tag_regexp = re.compile("{([^}]*)}(.*)")
|
|
|
|
|
|
def getETreeBuilder(ElementTreeImplementation, fullTree=False):
|
|
ElementTree = ElementTreeImplementation
|
|
ElementTreeCommentType = ElementTree.Comment("asd").tag
|
|
|
|
class Element(base.Node):
|
|
def __init__(self, name, namespace=None):
|
|
self._name = name
|
|
self._namespace = namespace
|
|
self._element = ElementTree.Element(self._getETreeTag(name,
|
|
namespace))
|
|
if namespace is None:
|
|
self.nameTuple = namespaces["html"], self._name
|
|
else:
|
|
self.nameTuple = self._namespace, self._name
|
|
self.parent = None
|
|
self._childNodes = []
|
|
self._flags = []
|
|
|
|
def _getETreeTag(self, name, namespace):
|
|
if namespace is None:
|
|
etree_tag = name
|
|
else:
|
|
etree_tag = "{%s}%s" % (namespace, name)
|
|
return etree_tag
|
|
|
|
def _setName(self, name):
|
|
self._name = name
|
|
self._element.tag = self._getETreeTag(self._name, self._namespace)
|
|
|
|
def _getName(self):
|
|
return self._name
|
|
|
|
name = property(_getName, _setName)
|
|
|
|
def _setNamespace(self, namespace):
|
|
self._namespace = namespace
|
|
self._element.tag = self._getETreeTag(self._name, self._namespace)
|
|
|
|
def _getNamespace(self):
|
|
return self._namespace
|
|
|
|
namespace = property(_getNamespace, _setNamespace)
|
|
|
|
def _getAttributes(self):
|
|
return self._element.attrib
|
|
|
|
def _setAttributes(self, attributes):
|
|
# Delete existing attributes first
|
|
# XXX - there may be a better way to do this...
|
|
for key in list(self._element.attrib.keys()):
|
|
del self._element.attrib[key]
|
|
for key, value in attributes.items():
|
|
if isinstance(key, tuple):
|
|
name = "{%s}%s" % (key[2], key[1])
|
|
else:
|
|
name = key
|
|
self._element.set(name, value)
|
|
|
|
attributes = property(_getAttributes, _setAttributes)
|
|
|
|
def _getChildNodes(self):
|
|
return self._childNodes
|
|
|
|
def _setChildNodes(self, value):
|
|
del self._element[:]
|
|
self._childNodes = []
|
|
for element in value:
|
|
self.insertChild(element)
|
|
|
|
childNodes = property(_getChildNodes, _setChildNodes)
|
|
|
|
def hasContent(self):
|
|
"""Return true if the node has children or text"""
|
|
return bool(self._element.text or len(self._element))
|
|
|
|
def appendChild(self, node):
|
|
self._childNodes.append(node)
|
|
self._element.append(node._element)
|
|
node.parent = self
|
|
|
|
def insertBefore(self, node, refNode):
|
|
index = list(self._element).index(refNode._element)
|
|
self._element.insert(index, node._element)
|
|
node.parent = self
|
|
|
|
def removeChild(self, node):
|
|
self._childNodes.remove(node)
|
|
self._element.remove(node._element)
|
|
node.parent = None
|
|
|
|
def insertText(self, data, insertBefore=None):
|
|
if not(len(self._element)):
|
|
if not self._element.text:
|
|
self._element.text = ""
|
|
self._element.text += data
|
|
elif insertBefore is None:
|
|
# Insert the text as the tail of the last child element
|
|
if not self._element[-1].tail:
|
|
self._element[-1].tail = ""
|
|
self._element[-1].tail += data
|
|
else:
|
|
# Insert the text before the specified node
|
|
children = list(self._element)
|
|
index = children.index(insertBefore._element)
|
|
if index > 0:
|
|
if not self._element[index - 1].tail:
|
|
self._element[index - 1].tail = ""
|
|
self._element[index - 1].tail += data
|
|
else:
|
|
if not self._element.text:
|
|
self._element.text = ""
|
|
self._element.text += data
|
|
|
|
def cloneNode(self):
|
|
element = type(self)(self.name, self.namespace)
|
|
for name, value in self.attributes.items():
|
|
element.attributes[name] = value
|
|
return element
|
|
|
|
def reparentChildren(self, newParent):
|
|
if newParent.childNodes:
|
|
newParent.childNodes[-1]._element.tail += self._element.text
|
|
else:
|
|
if not newParent._element.text:
|
|
newParent._element.text = ""
|
|
if self._element.text is not None:
|
|
newParent._element.text += self._element.text
|
|
self._element.text = ""
|
|
base.Node.reparentChildren(self, newParent)
|
|
|
|
class Comment(Element):
|
|
def __init__(self, data):
|
|
# Use the superclass constructor to set all properties on the
|
|
# wrapper element
|
|
self._element = ElementTree.Comment(data)
|
|
self.parent = None
|
|
self._childNodes = []
|
|
self._flags = []
|
|
|
|
def _getData(self):
|
|
return self._element.text
|
|
|
|
def _setData(self, value):
|
|
self._element.text = value
|
|
|
|
data = property(_getData, _setData)
|
|
|
|
class DocumentType(Element):
|
|
def __init__(self, name, publicId, systemId):
|
|
Element.__init__(self, "<!DOCTYPE>")
|
|
self._element.text = name
|
|
self.publicId = publicId
|
|
self.systemId = systemId
|
|
|
|
def _getPublicId(self):
|
|
return self._element.get("publicId", "")
|
|
|
|
def _setPublicId(self, value):
|
|
if value is not None:
|
|
self._element.set("publicId", value)
|
|
|
|
publicId = property(_getPublicId, _setPublicId)
|
|
|
|
def _getSystemId(self):
|
|
return self._element.get("systemId", "")
|
|
|
|
def _setSystemId(self, value):
|
|
if value is not None:
|
|
self._element.set("systemId", value)
|
|
|
|
systemId = property(_getSystemId, _setSystemId)
|
|
|
|
class Document(Element):
|
|
def __init__(self):
|
|
Element.__init__(self, "DOCUMENT_ROOT")
|
|
|
|
class DocumentFragment(Element):
|
|
def __init__(self):
|
|
Element.__init__(self, "DOCUMENT_FRAGMENT")
|
|
|
|
def testSerializer(element):
|
|
rv = []
|
|
|
|
def serializeElement(element, indent=0):
|
|
if not(hasattr(element, "tag")):
|
|
element = element.getroot()
|
|
if element.tag == "<!DOCTYPE>":
|
|
if element.get("publicId") or element.get("systemId"):
|
|
publicId = element.get("publicId") or ""
|
|
systemId = element.get("systemId") or ""
|
|
rv.append("""<!DOCTYPE %s "%s" "%s">""" %
|
|
(element.text, publicId, systemId))
|
|
else:
|
|
rv.append("<!DOCTYPE %s>" % (element.text,))
|
|
elif element.tag == "DOCUMENT_ROOT":
|
|
rv.append("#document")
|
|
if element.text is not None:
|
|
rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
|
|
if element.tail is not None:
|
|
raise TypeError("Document node cannot have tail")
|
|
if hasattr(element, "attrib") and len(element.attrib):
|
|
raise TypeError("Document node cannot have attributes")
|
|
elif element.tag == ElementTreeCommentType:
|
|
rv.append("|%s<!-- %s -->" % (' ' * indent, element.text))
|
|
else:
|
|
assert isinstance(element.tag, text_type), \
|
|
"Expected unicode, got %s, %s" % (type(element.tag), element.tag)
|
|
nsmatch = tag_regexp.match(element.tag)
|
|
|
|
if nsmatch is None:
|
|
name = element.tag
|
|
else:
|
|
ns, name = nsmatch.groups()
|
|
prefix = constants.prefixes[ns]
|
|
name = "%s %s" % (prefix, name)
|
|
rv.append("|%s<%s>" % (' ' * indent, name))
|
|
|
|
if hasattr(element, "attrib"):
|
|
attributes = []
|
|
for name, value in element.attrib.items():
|
|
nsmatch = tag_regexp.match(name)
|
|
if nsmatch is not None:
|
|
ns, name = nsmatch.groups()
|
|
prefix = constants.prefixes[ns]
|
|
attr_string = "%s %s" % (prefix, name)
|
|
else:
|
|
attr_string = name
|
|
attributes.append((attr_string, value))
|
|
|
|
for name, value in sorted(attributes):
|
|
rv.append('|%s%s="%s"' % (' ' * (indent + 2), name, value))
|
|
if element.text:
|
|
rv.append("|%s\"%s\"" % (' ' * (indent + 2), element.text))
|
|
indent += 2
|
|
for child in element:
|
|
serializeElement(child, indent)
|
|
if element.tail:
|
|
rv.append("|%s\"%s\"" % (' ' * (indent - 2), element.tail))
|
|
serializeElement(element, 0)
|
|
|
|
return "\n".join(rv)
|
|
|
|
def tostring(element): # pylint:disable=unused-variable
|
|
"""Serialize an element and its child nodes to a string"""
|
|
rv = []
|
|
filter = _ihatexml.InfosetFilter()
|
|
|
|
def serializeElement(element):
|
|
if isinstance(element, ElementTree.ElementTree):
|
|
element = element.getroot()
|
|
|
|
if element.tag == "<!DOCTYPE>":
|
|
if element.get("publicId") or element.get("systemId"):
|
|
publicId = element.get("publicId") or ""
|
|
systemId = element.get("systemId") or ""
|
|
rv.append("""<!DOCTYPE %s PUBLIC "%s" "%s">""" %
|
|
(element.text, publicId, systemId))
|
|
else:
|
|
rv.append("<!DOCTYPE %s>" % (element.text,))
|
|
elif element.tag == "DOCUMENT_ROOT":
|
|
if element.text is not None:
|
|
rv.append(element.text)
|
|
if element.tail is not None:
|
|
raise TypeError("Document node cannot have tail")
|
|
if hasattr(element, "attrib") and len(element.attrib):
|
|
raise TypeError("Document node cannot have attributes")
|
|
|
|
for child in element:
|
|
serializeElement(child)
|
|
|
|
elif element.tag == ElementTreeCommentType:
|
|
rv.append("<!--%s-->" % (element.text,))
|
|
else:
|
|
# This is assumed to be an ordinary element
|
|
if not element.attrib:
|
|
rv.append("<%s>" % (filter.fromXmlName(element.tag),))
|
|
else:
|
|
attr = " ".join(["%s=\"%s\"" % (
|
|
filter.fromXmlName(name), value)
|
|
for name, value in element.attrib.items()])
|
|
rv.append("<%s %s>" % (element.tag, attr))
|
|
if element.text:
|
|
rv.append(element.text)
|
|
|
|
for child in element:
|
|
serializeElement(child)
|
|
|
|
rv.append("</%s>" % (element.tag,))
|
|
|
|
if element.tail:
|
|
rv.append(element.tail)
|
|
|
|
serializeElement(element)
|
|
|
|
return "".join(rv)
|
|
|
|
class TreeBuilder(base.TreeBuilder): # pylint:disable=unused-variable
|
|
documentClass = Document
|
|
doctypeClass = DocumentType
|
|
elementClass = Element
|
|
commentClass = Comment
|
|
fragmentClass = DocumentFragment
|
|
implementation = ElementTreeImplementation
|
|
|
|
def testSerializer(self, element):
|
|
return testSerializer(element)
|
|
|
|
def getDocument(self):
|
|
if fullTree:
|
|
return self.document._element
|
|
else:
|
|
if self.defaultNamespace is not None:
|
|
return self.document._element.find(
|
|
"{%s}html" % self.defaultNamespace)
|
|
else:
|
|
return self.document._element.find("html")
|
|
|
|
def getFragment(self):
|
|
return base.TreeBuilder.getFragment(self)._element
|
|
|
|
return locals()
|
|
|
|
|
|
getETreeModule = moduleFactoryFactory(getETreeBuilder)
|