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diff --git a/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py b/jython-tosca-parser/src/main/resources/Lib/site-packages/pip/_vendor/html5lib/treebuilders/__init__.py
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-"""A collection of modules for building different kinds of tree 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
-"""
-
-from __future__ import absolute_import, division, unicode_literals
-
-from ..utils import default_etree
-
-treeBuilderCache = {}
-
-
-def getTreeBuilder(treeType, implementation=None, **kwargs):
- """Get a TreeBuilder class for various types of tree with built-in support
-
- treeType - the name of the tree type required (case-insensitive). Supported
- values are:
-
- "dom" - A generic builder for DOM implementations, defaulting to
- a xml.dom.minidom based implementation.
- "etree" - A generic builder for tree implementations exposing an
- ElementTree-like interface, defaulting to
- xml.etree.cElementTree if available and
- xml.etree.ElementTree if not.
- "lxml" - A etree-based builder for lxml.etree, handling
- limitations of lxml's implementation.
-
- implementation - (Currently applies to the "etree" and "dom" tree types). A
- module implementing the tree type e.g.
- xml.etree.ElementTree or xml.etree.cElementTree."""
-
- treeType = treeType.lower()
- if treeType not in treeBuilderCache:
- if treeType == "dom":
- from . import dom
- # Come up with a sane default (pref. from the stdlib)
- if implementation is None:
- from xml.dom import minidom
- implementation = minidom
- # NEVER cache here, caching is done in the dom submodule
- return dom.getDomModule(implementation, **kwargs).TreeBuilder
- elif treeType == "lxml":
- from . import etree_lxml
- treeBuilderCache[treeType] = etree_lxml.TreeBuilder
- elif treeType == "etree":
- from . import etree
- if implementation is None:
- implementation = default_etree
- # NEVER cache here, caching is done in the etree submodule
- return etree.getETreeModule(implementation, **kwargs).TreeBuilder
- else:
- raise ValueError("""Unrecognised treebuilder "%s" """ % treeType)
- return treeBuilderCache.get(treeType)