вEbc@`sHdZddlmZmZmZddlmZiZddZ dS(u)A collection of modules for building different kinds of trees from HTML documents. To create a treebuilder for a new type of tree, you need to do implement several things: 1. A set of classes for various types of elements: Document, Doctype, Comment, Element. These must implement the interface of ``base.treebuilders.Node`` (although comment nodes have a different signature for their constructor, see ``treebuilders.etree.Comment``) Textual content may also be implemented as another node type, or not, as your tree implementation requires. 2. A treebuilder object (called ``TreeBuilder`` by convention) that inherits from ``treebuilders.base.TreeBuilder``. This has 4 required attributes: * ``documentClass`` - the class to use for the bottommost node of a document * ``elementClass`` - the class to use for HTML Elements * ``commentClass`` - the class to use for comments * ``doctypeClass`` - the class to use for doctypes It also has one required method: * ``getDocument`` - Returns the root node of the complete document tree 3. If you wish to run the unit tests, you must also create a ``testSerializer`` method on your treebuilder which accepts a node and returns a string containing Node and its children serialized according to the format used in the unittests i(tabsolute_importtdivisiontunicode_literalsi(t default_etreecK`s|j}|tkr|dkrlddlm}|d krYddlm}|}n|j||jS|dkrddlm }|jt|>> from html5lib.treebuilders import getTreeBuilder >>> builder = getTreeBuilder('etree') udomi(tdomi(tminidomulxml(t etree_lxmluetree(tetreeuUnrecognised treebuilder "%s" N(tlowerttreeBuilderCachetRtNonetxml.domRt getDomModulet TreeBuilderRRRtgetETreeModulet ValueErrortget(ttreeTypetimplementationtkwargsRRRR((sG/tmp/pip-build-UPPWic/pip/pip/_vendor/html5lib/treebuilders/__init__.pytgetTreeBuilder's$         N( t__doc__t __future__RRRt_utilsRR R R(((sG/tmp/pip-build-UPPWic/pip/pip/_vendor/html5lib/treebuilders/__init__.pyts