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