101 lines
3.2 KiB
Python
101 lines
3.2 KiB
Python
|
"""
|
||
|
|
Legacy module - don't use in new code!
|
||
|
|
|
||
|
|
html5lib now has its own proper implementation.
|
||
|
|
|
||
|
|
This module implements a tree builder for html5lib that generates lxml
|
||
|
|
html element trees. This module uses camelCase as it follows the
|
||
|
|
html5lib style guide.
|
||
|
|
"""
|
||
|
|
|
||
|
|
from html5lib.treebuilders import _base, etree as etree_builders
|
||
|
|
from lxml import html, etree
|
||
|
|
|
||
|
|
|
||
|
|
class DocumentType(object):
|
||
|
|
|
||
|
|
def __init__(self, name, publicId, systemId):
|
||
|
|
self.name = name
|
||
|
|
self.publicId = publicId
|
||
|
|
self.systemId = systemId
|
||
|
|
|
||
|
|
class Document(object):
|
||
|
|
|
||
|
|
def __init__(self):
|
||
|
|
self._elementTree = None
|
||
|
|
self.childNodes = []
|
||
|
|
|
||
|
|
def appendChild(self, element):
|
||
|
|
self._elementTree.getroot().addnext(element._element)
|
||
|
|
|
||
|
|
|
||
|
|
class TreeBuilder(_base.TreeBuilder):
|
||
|
|
documentClass = Document
|
||
|
|
doctypeClass = DocumentType
|
||
|
|
elementClass = None
|
||
|
|
commentClass = None
|
||
|
|
fragmentClass = Document
|
||
|
|
|
||
|
|
def __init__(self, *args, **kwargs):
|
||
|
|
html_builder = etree_builders.getETreeModule(html, fullTree=False)
|
||
|
|
etree_builder = etree_builders.getETreeModule(etree, fullTree=False)
|
||
|
|
self.elementClass = html_builder.Element
|
||
|
|
self.commentClass = etree_builder.Comment
|
||
|
|
_base.TreeBuilder.__init__(self, *args, **kwargs)
|
||
|
|
|
||
|
|
def reset(self):
|
||
|
|
_base.TreeBuilder.reset(self)
|
||
|
|
self.rootInserted = False
|
||
|
|
self.initialComments = []
|
||
|
|
self.doctype = None
|
||
|
|
|
||
|
|
def getDocument(self):
|
||
|
|
return self.document._elementTree
|
||
|
|
|
||
|
|
def getFragment(self):
|
||
|
|
fragment = []
|
||
|
|
element = self.openElements[0]._element
|
||
|
|
if element.text:
|
||
|
|
fragment.append(element.text)
|
||
|
|
fragment.extend(element.getchildren())
|
||
|
|
if element.tail:
|
||
|
|
fragment.append(element.tail)
|
||
|
|
return fragment
|
||
|
|
|
||
|
|
def insertDoctype(self, name, publicId, systemId):
|
||
|
|
doctype = self.doctypeClass(name, publicId, systemId)
|
||
|
|
self.doctype = doctype
|
||
|
|
|
||
|
|
def insertComment(self, data, parent=None):
|
||
|
|
if not self.rootInserted:
|
||
|
|
self.initialComments.append(data)
|
||
|
|
else:
|
||
|
|
_base.TreeBuilder.insertComment(self, data, parent)
|
||
|
|
|
||
|
|
def insertRoot(self, name):
|
||
|
|
buf = []
|
||
|
|
if self.doctype and self.doctype.name:
|
||
|
|
buf.append('<!DOCTYPE %s' % self.doctype.name)
|
||
|
|
if self.doctype.publicId is not None or self.doctype.systemId is not None:
|
||
|
|
buf.append(' PUBLIC "%s" "%s"' % (self.doctype.publicId,
|
||
|
|
self.doctype.systemId))
|
||
|
|
buf.append('>')
|
||
|
|
buf.append('<html></html>')
|
||
|
|
root = html.fromstring(''.join(buf))
|
||
|
|
|
||
|
|
# Append the initial comments:
|
||
|
|
for comment in self.initialComments:
|
||
|
|
root.addprevious(etree.Comment(comment))
|
||
|
|
|
||
|
|
# Create the root document and add the ElementTree to it
|
||
|
|
self.document = self.documentClass()
|
||
|
|
self.document._elementTree = root.getroottree()
|
||
|
|
|
||
|
|
# Add the root element to the internal child/open data structures
|
||
|
|
root_element = self.elementClass(name)
|
||
|
|
root_element._element = root
|
||
|
|
self.document.childNodes.append(root_element)
|
||
|
|
self.openElements.append(root_element)
|
||
|
|
|
||
|
|
self.rootInserted = True
|