from __future__ import absolute_import, division, unicode_literals from pip._vendor.six import with_metaclass, viewkeys import types from . import _inputstream from . import _tokenizer from . import treebuilders from .treebuilders.base import Marker from . import _utils from .constants import ( spaceCharacters, asciiUpper2Lower, specialElements, headingElements, cdataElements, rcdataElements, tokenTypes, tagTokenTypes, namespaces, htmlIntegrationPointElements, mathmlTextIntegrationPointElements, adjustForeignAttributes as adjustForeignAttributesMap, adjustMathMLAttributes, adjustSVGAttributes, E, _ReparseException ) def parse(doc, treebuilder="etree", namespaceHTMLElements=True, **kwargs): """Parse an HTML document as a string or file-like object into a tree :arg doc: the document to parse as a string or file-like object :arg treebuilder: the treebuilder to use when parsing :arg namespaceHTMLElements: whether or not to namespace HTML elements :returns: parsed tree Example: >>> from html5lib.html5parser import parse >>> parse('

This is a doc

') """ tb = treebuilders.getTreeBuilder(treebuilder) p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements) return p.parse(doc, **kwargs) def parseFragment(doc, container="div", treebuilder="etree", namespaceHTMLElements=True, **kwargs): """Parse an HTML fragment as a string or file-like object into a tree :arg doc: the fragment to parse as a string or file-like object :arg container: the container context to parse the fragment in :arg treebuilder: the treebuilder to use when parsing :arg namespaceHTMLElements: whether or not to namespace HTML elements :returns: parsed tree Example: >>> from html5lib.html5libparser import parseFragment >>> parseFragment('this is a fragment') """ tb = treebuilders.getTreeBuilder(treebuilder) p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements) return p.parseFragment(doc, container=container, **kwargs) def method_decorator_metaclass(function): class Decorated(type): def __new__(meta, classname, bases, classDict): for attributeName, attribute in classDict.items(): if isinstance(attribute, types.FunctionType): attribute = function(attribute) classDict[attributeName] = attribute return type.__new__(meta, classname, bases, classDict) return Decorated class HTMLParser(object): """HTML parser Generates a tree structure from a stream of (possibly malformed) HTML. """ def __init__(self, tree=None, strict=False, namespaceHTMLElements=True, debug=False): """ :arg tree: a treebuilder class controlling the type of tree that will be returned. Built in treebuilders can be accessed through html5lib.treebuilders.getTreeBuilder(treeType) :arg strict: raise an exception when a parse error is encountered :arg namespaceHTMLElements: whether or not to namespace HTML elements :arg debug: whether or not to enable debug mode which logs things Example: >>> from html5lib.html5parser import HTMLParser >>> parser = HTMLParser() # generates parser with etree builder >>> parser = HTMLParser('lxml', strict=True) # generates parser with lxml builder which is strict """ # Raise an exception on the first error encountered self.strict = strict if tree is None: tree = treebuilders.getTreeBuilder("etree") self.tree = tree(namespaceHTMLElements) self.errors = [] self.phases = {name: cls(self, self.tree) for name, cls in getPhases(debug).items()} def _parse(self, stream, innerHTML=False, container="div", scripting=False, **kwargs): self.innerHTMLMode = innerHTML self.container = container self.scripting = scripting self.tokenizer = _tokenizer.HTMLTokenizer(stream, parser=self, **kwargs) self.reset() try: self.mainLoop() except _ReparseException: self.reset() self.mainLoop() def reset(self): self.tree.reset() self.firstStartTag = False self.errors = [] self.log = [] # only used with debug mode # "quirks" / "limited quirks" / "no quirks" self.compatMode = "no quirks" if self.innerHTMLMode: self.innerHTML = self.container.lower() if self.innerHTML in cdataElements: self.tokenizer.state = self.tokenizer.rcdataState elif self.innerHTML in rcdataElements: self.tokenizer.state = self.tokenizer.rawtextState elif self.innerHTML == 'plaintext': self.tokenizer.state = self.tokenizer.plaintextState else: # state already is data state # self.tokenizer.state = self.tokenizer.dataState pass self.phase = self.phases["beforeHtml"] self.phase.insertHtmlElement() self.resetInsertionMode() else: self.innerHTML = False # pylint:disable=redefined-variable-type self.phase = self.phases["initial"] self.lastPhase = None self.beforeRCDataPhase = None self.framesetOK = True @property def documentEncoding(self): """Name of the character encoding that was used to decode the input stream, or :obj:`None` if that is not determined yet """ if not hasattr(self, 'tokenizer'): return None return self.tokenizer.stream.charEncoding[0].name def isHTMLIntegrationPoint(self, element): if (element.name == "annotation-xml" and element.namespace == namespaces["mathml"]): return ("encoding" in element.attributes and element.attributes["encoding"].translate( asciiUpper2Lower) in ("text/html", "application/xhtml+xml")) else: return (element.namespace, element.name) in htmlIntegrationPointElements def isMathMLTextIntegrationPoint(self, element): return (element.namespace, element.name) in mathmlTextIntegrationPointElements def mainLoop(self): CharactersToken = tokenTypes["Characters"] SpaceCharactersToken = tokenTypes["SpaceCharacters"] StartTagToken = tokenTypes["StartTag"] EndTagToken = tokenTypes["EndTag"] CommentToken = tokenTypes["Comment"] DoctypeToken = tokenTypes["Doctype"] ParseErrorToken = tokenTypes["ParseError"] for token in self.tokenizer: prev_token = None new_token = token while new_token is not None: prev_token = new_token currentNode = self.tree.openElements[-1] if self.tree.openElements else None currentNodeNamespace = currentNode.namespace if currentNode else None currentNodeName = currentNode.name if currentNode else None type = new_token["type"] if type == ParseErrorToken: self.parseError(new_token["data"], new_token.get("datavars", {})) new_token = None else: if (len(self.tree.openElements) == 0 or currentNodeNamespace == self.tree.defaultNamespace or (self.isMathMLTextIntegrationPoint(currentNode) and ((type == StartTagToken and token["name"] not in frozenset(["mglyph", "malignmark"])) or type in (CharactersToken, SpaceCharactersToken))) or (currentNodeNamespace == namespaces["mathml"] and currentNodeName == "annotation-xml" and type == StartTagToken and token["name"] == "svg") or (self.isHTMLIntegrationPoint(currentNode) and type in (StartTagToken, CharactersToken, SpaceCharactersToken))): phase = self.phase else: phase = self.phases["inForeignContent"] if type == CharactersToken: new_token = phase.processCharacters(new_token) elif type == SpaceCharactersToken: new_token = phase.processSpaceCharacters(new_token) elif type == StartTagToken: new_token = phase.processStartTag(new_token) elif type == EndTagToken: new_token = phase.processEndTag(new_token) elif type == CommentToken: new_token = phase.processComment(new_token) elif type == DoctypeToken: new_token = phase.processDoctype(new_token) if (type == StartTagToken and prev_token["selfClosing"] and not prev_token["selfClosingAcknowledged"]): self.parseError("non-void-element-with-trailing-solidus", {"name": prev_token["name"]}) # When the loop finishes it's EOF reprocess = True phases = [] while reprocess: phases.append(self.phase) reprocess = self.phase.processEOF() if reprocess: assert self.phase not in phases def parse(self, stream, *args, **kwargs): """Parse a HTML document into a well-formed tree :arg stream: a file-like object or string containing the HTML to be parsed The optional encoding parameter must be a string that indicates the encoding. If specified, that encoding will be used, regardless of any BOM or later declaration (such as in a meta element). :arg scripting: treat noscript elements as if JavaScript was turned on :returns: parsed tree Example: >>> from html5lib.html5parser import HTMLParser >>> parser = HTMLParser() >>> parser.parse('

This is a doc

') """ self._parse(stream, False, None, *args, **kwargs) return self.tree.getDocument() def parseFragment(self, stream, *args, **kwargs): """Parse a HTML fragment into a well-formed tree fragment :arg container: name of the element we're setting the innerHTML property if set to None, default to 'div' :arg stream: a file-like object or string containing the HTML to be parsed The optional encoding parameter must be a string that indicates the encoding. If specified, that encoding will be used, regardless of any BOM or later declaration (such as in a meta element) :arg scripting: treat noscript elements as if JavaScript was turned on :returns: parsed tree Example: >>> from html5lib.html5libparser import HTMLParser >>> parser = HTMLParser() >>> parser.parseFragment('this is a fragment') """ self._parse(stream, True, *args, **kwargs) return self.tree.getFragment() def parseError(self, errorcode="XXX-undefined-error", datavars=None): # XXX The idea is to make errorcode mandatory. if datavars is None: datavars = {} self.errors.append((self.tokenizer.stream.position(), errorcode, datavars)) if self.strict: raise ParseError(E[errorcode] % datavars) def adjustMathMLAttributes(self, token): adjust_attributes(token, adjustMathMLAttributes) def adjustSVGAttributes(self, token): adjust_attributes(token, adjustSVGAttributes) def adjustForeignAttributes(self, token): adjust_attributes(token, adjustForeignAttributesMap) def reparseTokenNormal(self, token): # pylint:disable=unused-argument self.parser.phase() def resetInsertionMode(self): # The name of this method is mostly historical. (It's also used in the # specification.) last = False newModes = { "select": "inSelect", "td": "inCell", "th": "inCell", "tr": "inRow", "tbody": "inTableBody", "thead": "inTableBody", "tfoot": "inTableBody", "caption": "inCaption", "colgroup": "inColumnGroup", "table": "inTable", "head": "inBody", "body": "inBody", "frameset": "inFrameset", "html": "beforeHead" } for node in self.tree.openElements[::-1]: nodeName = node.name new_phase = None if node == self.tree.openElements[0]: assert self.innerHTML last = True nodeName = self.innerHTML # Check for conditions that should only happen in the innerHTML # case if nodeName in ("select", "colgroup", "head", "html"): assert self.innerHTML if not last and node.namespace != self.tree.defaultNamespace: continue if nodeName in newModes: new_phase = self.phases[newModes[nodeName]] break elif last: new_phase = self.phases["inBody"] break self.phase = new_phase def parseRCDataRawtext(self, token, contentType): # Generic RCDATA/RAWTEXT Parsing algorithm assert contentType in ("RAWTEXT", "RCDATA") self.tree.insertElement(token) if contentType == "RAWTEXT": self.tokenizer.state = self.tokenizer.rawtextState else: self.tokenizer.state = self.tokenizer.rcdataState self.originalPhase = self.phase self.phase = self.phases["text"] @_utils.memoize def getPhases(debug): def log(function): """Logger that records which phase processes each token""" type_names = {value: key for key, value in tokenTypes.items()} def wrapped(self, *args, **kwargs): if function.__name__.startswith("process") and len(args) > 0: token = args[0] info = {"type": type_names[token['type']]} if token['type'] in tagTokenTypes: info["name"] = token['name'] self.parser.log.append((self.parser.tokenizer.state.__name__, self.parser.phase.__class__.__name__, self.__class__.__name__, function.__name__, info)) return function(self, *args, **kwargs) else: return function(self, *args, **kwargs) return wrapped def getMetaclass(use_metaclass, metaclass_func): if use_metaclass: return method_decorator_metaclass(metaclass_func) else: return type # pylint:disable=unused-argument class Phase(with_metaclass(getMetaclass(debug, log))): """Base class for helper object that implements each phase of processing """ __slots__ = ("parser", "tree", "__startTagCache", "__endTagCache") def __init__(self, parser, tree): self.parser = parser self.tree = tree self.__startTagCache = {} self.__endTagCache = {} def processEOF(self): raise NotImplementedError def processComment(self, token): # For most phases the following is correct. Where it's not it will be # overridden. self.tree.insertComment(token, self.tree.openElements[-1]) def processDoctype(self, token): self.parser.parseError("unexpected-doctype") def processCharacters(self, token): self.tree.insertText(token["data"]) def processSpaceCharacters(self, token): self.tree.insertText(token["data"]) def processStartTag(self, token): # Note the caching is done here rather than BoundMethodDispatcher as doing it there # requires a circular reference to the Phase, and this ends up with a significant # (CPython 2.7, 3.8) GC cost when parsing many short inputs name = token["name"] # In Py2, using `in` is quicker in general than try/except KeyError # In Py3, `in` is quicker when there are few cache hits (typically short inputs) if name in self.__startTagCache: func = self.__startTagCache[name] else: func = self.__startTagCache[name] = self.startTagHandler[name] # bound the cache size in case we get loads of unknown tags while len(self.__startTagCache) > len(self.startTagHandler) * 1.1: # this makes the eviction policy random on Py < 3.7 and FIFO >= 3.7 self.__startTagCache.pop(next(iter(self.__startTagCache))) return func(token) def startTagHtml(self, token): if not self.parser.firstStartTag and token["name"] == "html": self.parser.parseError("non-html-root") # XXX Need a check here to see if the first start tag token emitted is # this token... If it's not, invoke self.parser.parseError(). for attr, value in token["data"].items(): if attr not in self.tree.openElements[0].attributes: self.tree.openElements[0].attributes[attr] = value self.parser.firstStartTag = False def processEndTag(self, token): # Note the caching is done here rather than BoundMethodDispatcher as doing it there # requires a circular reference to the Phase, and this ends up with a significant # (CPython 2.7, 3.8) GC cost when parsing many short inputs name = token["name"] # In Py2, using `in` is quicker in general than try/except KeyError # In Py3, `in` is quicker when there are few cache hits (typically short inputs) if name in self.__endTagCache: func = self.__endTagCache[name] else: func = self.__endTagCache[name] = self.endTagHandler[name] # bound the cache size in case we get loads of unknown tags while len(self.__endTagCache) > len(self.endTagHandler) * 1.1: # this makes the eviction policy random on Py < 3.7 and FIFO >= 3.7 self.__endTagCache.pop(next(iter(self.__endTagCache))) return func(token) class InitialPhase(Phase): __slots__ = tuple() def processSpaceCharacters(self, token): pass def processComment(self, token): self.tree.insertComment(token, self.tree.document) def processDoctype(self, token): name = token["name"] publicId = token["publicId"] systemId = token["systemId"] correct = token["correct"] if (name != "html" or publicId is not None or systemId is not None and systemId != "about:legacy-compat"): self.parser.parseError("unknown-doctype") if publicId is None: publicId = "" self.tree.insertDoctype(token) if publicId != "": publicId = publicId.translate(asciiUpper2Lower) if (not correct or token["name"] != "html" or publicId.startswith( ("+//silmaril//dtd html pro v0r11 19970101//", "-//advasoft ltd//dtd html 3.0 aswedit + extensions//", "-//as//dtd html 3.0 aswedit + extensions//", "-//ietf//dtd html 2.0 level 1//", "-//ietf//dtd html 2.0 level 2//", "-//ietf//dtd html 2.0 strict level 1//", "-//ietf//dtd html 2.0 strict level 2//", "-//ietf//dtd html 2.0 strict//", "-//ietf//dtd html 2.0//", "-//ietf//dtd html 2.1e//", "-//ietf//dtd html 3.0//", "-//ietf//dtd html 3.2 final//", "-//ietf//dtd html 3.2//", "-//ietf//dtd html 3//", "-//ietf//dtd html level 0//", "-//ietf//dtd html level 1//", "-//ietf//dtd html level 2//", "-//ietf//dtd html level 3//", "-//ietf//dtd html strict level 0//", "-//ietf//dtd html strict level 1//", "-//ietf//dtd html strict level 2//", "-//ietf//dtd html strict level 3//", "-//ietf//dtd html strict//", "-//ietf//dtd html//", "-//metrius//dtd metrius presentational//", "-//microsoft//dtd internet explorer 2.0 html strict//", "-//microsoft//dtd internet explorer 2.0 html//", "-//microsoft//dtd internet explorer 2.0 tables//", "-//microsoft//dtd internet explorer 3.0 html strict//", "-//microsoft//dtd internet explorer 3.0 html//", "-//microsoft//dtd internet explorer 3.0 tables//", "-//netscape comm. corp.//dtd html//", "-//netscape comm. corp.//dtd strict html//", "-//o'reilly and associates//dtd html 2.0//", "-//o'reilly and associates//dtd html extended 1.0//", "-//o'reilly and associates//dtd html extended relaxed 1.0//", "-//softquad software//dtd hotmetal pro 6.0::19990601::extensions to html 4.0//", "-//softquad//dtd hotmetal pro 4.0::19971010::extensions to html 4.0//", "-//spyglass//dtd html 2.0 extended//", "-//sq//dtd html 2.0 hotmetal + extensions//", "-//sun microsystems corp.//dtd hotjava html//", "-//sun microsystems corp.//dtd hotjava strict html//", "-//w3c//dtd html 3 1995-03-24//", "-//w3c//dtd html 3.2 draft//", "-//w3c//dtd html 3.2 final//", "-//w3c//dtd html 3.2//", "-//w3c//dtd html 3.2s draft//", "-//w3c//dtd html 4.0 frameset//", "-//w3c//dtd html 4.0 transitional//", "-//w3c//dtd html experimental 19960712//", "-//w3c//dtd html experimental 970421//", "-//w3c//dtd w3 html//", "-//w3o//dtd w3 html 3.0//", "-//webtechs//dtd mozilla html 2.0//", "-//webtechs//dtd mozilla html//")) or publicId in ("-//w3o//dtd w3 html strict 3.0//en//", "-/w3c/dtd html 4.0 transitional/en", "html") or publicId.startswith( ("-//w3c//dtd html 4.01 frameset//", "-//w3c//dtd html 4.01 transitional//")) and systemId is None or systemId and systemId.lower() == "http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd"): self.parser.compatMode = "quirks" elif (publicId.startswith( ("-//w3c//dtd xhtml 1.0 frameset//", "-//w3c//dtd xhtml 1.0 transitional//")) or publicId.startswith( ("-//w3c//dtd html 4.01 frameset//", "-//w3c//dtd html 4.01 transitional//")) and systemId is not None): self.parser.compatMode = "limited quirks" self.parser.phase = self.parser.phases["beforeHtml"] def anythingElse(self): self.parser.compatMode = "quirks" self.parser.phase = self.parser.phases["beforeHtml"] def processCharacters(self, token): self.parser.parseError("expected-doctype-but-got-chars") self.anythingElse() return token def processStartTag(self, token): self.parser.parseError("expected-doctype-but-got-start-tag", {"name": token["name"]}) self.anythingElse() return token def processEndTag(self, token): self.parser.parseError("expected-doctype-but-got-end-tag", {"name": token["name"]}) self.anythingElse() return token def processEOF(self): self.parser.parseError("expected-doctype-but-got-eof") self.anythingElse() return True class BeforeHtmlPhase(Phase): __slots__ = tuple() # helper methods def insertHtmlElement(self): self.tree.insertRoot(impliedTagToken("html", "StartTag")) self.parser.phase = self.parser.phases["beforeHead"] # other def processEOF(self): self.insertHtmlElement() return True def processComment(self, token): self.tree.insertComment(token, self.tree.document) def processSpaceCharacters(self, token): pass def processCharacters(self, token): self.insertHtmlElement() return token def processStartTag(self, token): if token["name"] == "html": self.parser.firstStartTag = True self.insertHtmlElement() return token def processEndTag(self, token): if token["name"] not in ("head", "body", "html", "br"): self.parser.parseError("unexpected-end-tag-before-html", {"name": token["name"]}) else: self.insertHtmlElement() return token class BeforeHeadPhase(Phase): __slots__ = tuple() def processEOF(self): self.startTagHead(impliedTagToken("head", "StartTag")) return True def processSpaceCharacters(self, token): pass def processCharacters(self, token): self.startTagHead(impliedTagToken("head", "StartTag")) return token def startTagHtml(self, token): return self.parser.phases["inBody"].processStartTag(token) def startTagHead(self, token): self.tree.insertElement(token) self.tree.headPointer = self.tree.openElements[-1] self.parser.phase = self.parser.phases["inHead"] def startTagOther(self, token): self.startTagHead(impliedTagToken("head", "StartTag")) return token def endTagImplyHead(self, token): self.startTagHead(impliedTagToken("head", "StartTag")) return token def endTagOther(self, token): self.parser.parseError("end-tag-after-implied-root", {"name": token["name"]}) startTagHandler = _utils.MethodDispatcher([ ("html", startTagHtml), ("head", startTagHead) ]) startTagHandler.default = startTagOther endTagHandler = _utils.MethodDispatcher([ (("head", "body", "html", "br"), endTagImplyHead) ]) endTagHandler.default = endTagOther class InHeadPhase(Phase): __slots__ = tuple() # the real thing def processEOF(self): self.anythingElse() return True def processCharacters(self, token): self.anythingElse() return token def startTagHtml(self, token): return self.parser.phases["inBody"].processStartTag(token) def startTagHead(self, token): self.parser.parseError("two-heads-are-not-better-than-one") def startTagBaseLinkCommand(self, token): self.tree.insertElement(token) self.tree.openElements.pop() token["selfClosingAcknowledged"] = True def startTagMeta(self, token): self.tree.insertElement(token) self.tree.openElements.pop() token["selfClosingAcknowledged"] = True attributes = token["data"] if self.parser.tokenizer.stream.charEncoding[1] == "tentative": if "charset" in attributes: self.parser.tokenizer.stream.changeEncoding(attributes["charset"]) elif ("content" in attributes and "http-equiv" in attributes and attributes["http-equiv"].lower() == "content-type"): # Encoding it as UTF-8 here is a hack, as really we should pass # the abstract Unicode string, and just use the # ContentAttrParser on that, but using UTF-8 allows all chars # to be encoded and as a ASCII-superset works. data = _inputstream.EncodingBytes(attributes["content"].encode("utf-8")) parser = _inputstream.ContentAttrParser(data) codec = parser.parse() self.parser.tokenizer.stream.changeEncoding(codec) def startTagTitle(self, token): self.parser.parseRCDataRawtext(token, "RCDATA") def startTagNoFramesStyle(self, token): # Need to decide whether to implement the scripting-disabled case self.parser.parseRCDataRawtext(token, "RAWTEXT") def startTagNoscript(self, token): if self.parser.scripting: self.parser.parseRCDataRawtext(token, "RAWTEXT") else: self.tree.insertElement(token) self.parser.phase = self.parser.phases["inHeadNoscript"] def startTagScript(self, token): self.tree.insertElement(token) self.parser.tokenizer.state = self.parser.tokenizer.scriptDataState self.parser.originalPhase = self.parser.phase self.parser.phase = self.parser.phases["text"] def startTagOther(self, token): self.anythingElse() return token def endTagHead(self, token): node = self.parser.tree.openElements.pop() assert node.name == "head", "Expected head got %s" % node.name self.parser.phase = self.parser.phases["afterHead"] def endTagHtmlBodyBr(self, token): self.anythingElse() return token def endTagOther(self, token): self.parser.parseError("unexpected-end-tag", {"name": token["name"]}) def anythingElse(self): self.endTagHead(impliedTagToken("head")) startTagHandler = _utils.MethodDispatcher([ ("html", startTagHtml), ("title", startTagTitle), (("noframes", "style"), startTagNoFramesStyle), ("noscript", startTagNoscript), ("script", startTagScript), (("base", "basefont", "bgsound", "command", "link"), startTagBaseLinkCommand), ("meta", startTagMeta), ("head", startTagHead) ]) startTagHandler.default = startTagOther endTagHandler = _utils.MethodDispatcher([ ("head", endTagHead), (("br", "html", "body"), endTagHtmlBodyBr) ]) endTagHandler.default = endTagOther class InHeadNoscriptPhase(Phase): __slots__ = tuple() def processEOF(self): self.parser.parseError("eof-in-head-noscript") self.anythingElse() return True def processComment(self, token): return self.parser.phases["inHead"].processComment(token) def processCharacters(self, token): self.parser.parseError("char-in-head-noscript") self.anythingElse() return token def processSpaceCharacters(self, token): return self.parser.phases["inHead"].processSpaceCharacters(token) def startTagHtml(self, token): return self.parser.phases["inBody"].processStartTag(token) def startTagBaseLinkCommand(self, token): return self.parser.phases["inHead"].processStartTag(token) def startTagHeadNoscript(self, token): self.parser.parseError("unexpected-start-tag", {"name": token["name"]}) def startTagOther(self, token): self.parser.parseError("unexpected-inhead-noscript-tag", {"name": token["name"]}) self.anythingElse() return token def endTagNoscript(self, token): node = self.parser.tree.openElements.pop() assert node.name == "noscript", "Expected noscript got %s" % node.name self.parser.phase = self.parser.phases["inHead"] def endTagBr(self, token): self.parser.parseError("unexpected-inhead-noscript-tag", {"name": token["name"]}) self.anythingElse() return token def endTagOther(self, token): self.parser.parseError("unexpected-end-tag", {"name": token["name"]}) def anythingElse(self): # Caller must raise parse error first! self.endTagNoscript(impliedTagToken("noscript")) startTagHandler = _utils.MethodDispatcher([ ("html", startTagHtml), (("basefont", "bgsound", "link", "meta", "noframes", "style"), startTagBaseLinkCommand), (("head", "noscript"), startTagHeadNoscript), ]) startTagHandler.default = startTagOther endTagHandler = _utils.MethodDispatcher([ ("noscript", endTagNoscript), ("br", endTagBr), ]) endTagHandler.default = endTagOther class AfterHeadPhase(Phase): __slots__ = tuple() def processEOF(self): self.anythingElse() return True def processCharacters(self, token): self.anythingElse() return token def startTagHtml(self, token): return self.parser.phases["inBody"].processStartTag(token) def startTagBody(self, token): self.parser.framesetOK = False self.tree.insertElement(token) self.parser.phase = self.parser.phases["inBody"] def startTagFrameset(self, token): self.tree.insertElement(token) self.parser.phase = self.parser.phases["inFrameset"] def startTagFromHead(self, token): self.parser.parseError("unexpected-start-tag-out-of-my-head", {"name": token["name"]}) self.tree.openElements.append(self.tree.headPointer) self.parser.phases["inHead"].processStartTag(token) for node in self.tree.openElements[::-1]: if node.name == "head": self.tree.openElements.remove(node) break def startTagHead(self, token): self.parser.parseError("unexpected-start-tag", {"name": token["name"]}) def startTagOther(self, token): self.anythingElse() return token def endTagHtmlBodyBr(self, token): self.anythingElse() return token def endTagOther(self, token): self.parser.parseError("unexpected-end-tag", {"name": token["name"]}) def anythingElse(self): self.tree.insertElement(impliedTagToken("body", "StartTag")) self.parser.phase = self.parser.phases["inBody"] self.parser.framesetOK = True startTagHandler = _utils.MethodDispatcher([ ("html", startTagHtml), ("body", startTagBody), ("frameset", startTagFrameset), (("base", "basefont", "bgsound", "link", "meta", "noframes", "script", "style", "title"), startTagFromHead), ("head", startTagHead) ]) startTagHandler.default = startTagOther endTagHandler = _utils.MethodDispatcher([(("body", "html", "br"), endTagHtmlBodyBr)]) endTagHandler.default = endTagOther class InBodyPhase(Phase): # http://www.whatwg.org/specs/web-apps/current-work/#parsing-main-inbody # the really-really-really-very crazy mode __slots__ = ("processSpaceCharacters",) def __init__(self, *args, **kwargs): super(InBodyPhase, self).__init__(*args, **kwargs) # Set this to the default handler self.processSpaceCharacters = self.processSpaceCharactersNonPre def isMatchingFormattingElement(self, node1, node2): return (node1.name == node2.name and node1.namespace == node2.namespace and node1.attributes == node2.attributes) # helper def addFormattingElement(self, token): self.tree.insertElement(token) element = self.tree.openElements[-1] matchingElements = [] for node in self.tree.activeFormattingElements[::-1]: if node is Marker: break elif self.isMatchingFormattingElement(node, element): matchingElements.append(node) assert len(matchingElements) <= 3 if len(matchingElements) == 3: self.tree.activeFormattingElements.remove(matchingElements[-1]) self.tree.activeFormattingElements.append(element) # the real deal def processEOF(self): allowed_elements = frozenset(("dd", "dt", "li", "p", "tbody", "td", "tfoot", "th", "thead", "tr", "body", "html")) for node in self.tree.openElements[::-1]: if node.name not in allowed_elements: self.parser.parseError("expected-closing-tag-but-got-eof") break # Stop parsing def processSpaceCharactersDropNewline(self, token): # Sometimes (start of

, , and  blocks) we
            # want to drop leading newlines
            data = token["data"]
            self.processSpaceCharacters = self.processSpaceCharactersNonPre
            if (data.startswith("\n") and
                self.tree.openElements[-1].name in ("pre", "listing", "textarea") and
                    not self.tree.openElements[-1].hasContent()):
                data = data[1:]
            if data:
                self.tree.reconstructActiveFormattingElements()
                self.tree.insertText(data)

        def processCharacters(self, token):
            if token["data"] == "\u0000":
                # The tokenizer should always emit null on its own
                return
            self.tree.reconstructActiveFormattingElements()
            self.tree.insertText(token["data"])
            # This must be bad for performance
            if (self.parser.framesetOK and
                any([char not in spaceCharacters
                     for char in token["data"]])):
                self.parser.framesetOK = False

        def processSpaceCharactersNonPre(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.tree.insertText(token["data"])

        def startTagProcessInHead(self, token):
            return self.parser.phases["inHead"].processStartTag(token)

        def startTagBody(self, token):
            self.parser.parseError("unexpected-start-tag", {"name": "body"})
            if (len(self.tree.openElements) == 1 or
                    self.tree.openElements[1].name != "body"):
                assert self.parser.innerHTML
            else:
                self.parser.framesetOK = False
                for attr, value in token["data"].items():
                    if attr not in self.tree.openElements[1].attributes:
                        self.tree.openElements[1].attributes[attr] = value

        def startTagFrameset(self, token):
            self.parser.parseError("unexpected-start-tag", {"name": "frameset"})
            if (len(self.tree.openElements) == 1 or self.tree.openElements[1].name != "body"):
                assert self.parser.innerHTML
            elif not self.parser.framesetOK:
                pass
            else:
                if self.tree.openElements[1].parent:
                    self.tree.openElements[1].parent.removeChild(self.tree.openElements[1])
                while self.tree.openElements[-1].name != "html":
                    self.tree.openElements.pop()
                self.tree.insertElement(token)
                self.parser.phase = self.parser.phases["inFrameset"]

        def startTagCloseP(self, token):
            if self.tree.elementInScope("p", variant="button"):
                self.endTagP(impliedTagToken("p"))
            self.tree.insertElement(token)

        def startTagPreListing(self, token):
            if self.tree.elementInScope("p", variant="button"):
                self.endTagP(impliedTagToken("p"))
            self.tree.insertElement(token)
            self.parser.framesetOK = False
            self.processSpaceCharacters = self.processSpaceCharactersDropNewline

        def startTagForm(self, token):
            if self.tree.formPointer:
                self.parser.parseError("unexpected-start-tag", {"name": "form"})
            else:
                if self.tree.elementInScope("p", variant="button"):
                    self.endTagP(impliedTagToken("p"))
                self.tree.insertElement(token)
                self.tree.formPointer = self.tree.openElements[-1]

        def startTagListItem(self, token):
            self.parser.framesetOK = False

            stopNamesMap = {"li": ["li"],
                            "dt": ["dt", "dd"],
                            "dd": ["dt", "dd"]}
            stopNames = stopNamesMap[token["name"]]
            for node in reversed(self.tree.openElements):
                if node.name in stopNames:
                    self.parser.phase.processEndTag(
                        impliedTagToken(node.name, "EndTag"))
                    break
                if (node.nameTuple in specialElements and
                        node.name not in ("address", "div", "p")):
                    break

            if self.tree.elementInScope("p", variant="button"):
                self.parser.phase.processEndTag(
                    impliedTagToken("p", "EndTag"))

            self.tree.insertElement(token)

        def startTagPlaintext(self, token):
            if self.tree.elementInScope("p", variant="button"):
                self.endTagP(impliedTagToken("p"))
            self.tree.insertElement(token)
            self.parser.tokenizer.state = self.parser.tokenizer.plaintextState

        def startTagHeading(self, token):
            if self.tree.elementInScope("p", variant="button"):
                self.endTagP(impliedTagToken("p"))
            if self.tree.openElements[-1].name in headingElements:
                self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
                self.tree.openElements.pop()
            self.tree.insertElement(token)

        def startTagA(self, token):
            afeAElement = self.tree.elementInActiveFormattingElements("a")
            if afeAElement:
                self.parser.parseError("unexpected-start-tag-implies-end-tag",
                                       {"startName": "a", "endName": "a"})
                self.endTagFormatting(impliedTagToken("a"))
                if afeAElement in self.tree.openElements:
                    self.tree.openElements.remove(afeAElement)
                if afeAElement in self.tree.activeFormattingElements:
                    self.tree.activeFormattingElements.remove(afeAElement)
            self.tree.reconstructActiveFormattingElements()
            self.addFormattingElement(token)

        def startTagFormatting(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.addFormattingElement(token)

        def startTagNobr(self, token):
            self.tree.reconstructActiveFormattingElements()
            if self.tree.elementInScope("nobr"):
                self.parser.parseError("unexpected-start-tag-implies-end-tag",
                                       {"startName": "nobr", "endName": "nobr"})
                self.processEndTag(impliedTagToken("nobr"))
                # XXX Need tests that trigger the following
                self.tree.reconstructActiveFormattingElements()
            self.addFormattingElement(token)

        def startTagButton(self, token):
            if self.tree.elementInScope("button"):
                self.parser.parseError("unexpected-start-tag-implies-end-tag",
                                       {"startName": "button", "endName": "button"})
                self.processEndTag(impliedTagToken("button"))
                return token
            else:
                self.tree.reconstructActiveFormattingElements()
                self.tree.insertElement(token)
                self.parser.framesetOK = False

        def startTagAppletMarqueeObject(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.tree.insertElement(token)
            self.tree.activeFormattingElements.append(Marker)
            self.parser.framesetOK = False

        def startTagXmp(self, token):
            if self.tree.elementInScope("p", variant="button"):
                self.endTagP(impliedTagToken("p"))
            self.tree.reconstructActiveFormattingElements()
            self.parser.framesetOK = False
            self.parser.parseRCDataRawtext(token, "RAWTEXT")

        def startTagTable(self, token):
            if self.parser.compatMode != "quirks":
                if self.tree.elementInScope("p", variant="button"):
                    self.processEndTag(impliedTagToken("p"))
            self.tree.insertElement(token)
            self.parser.framesetOK = False
            self.parser.phase = self.parser.phases["inTable"]

        def startTagVoidFormatting(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.tree.insertElement(token)
            self.tree.openElements.pop()
            token["selfClosingAcknowledged"] = True
            self.parser.framesetOK = False

        def startTagInput(self, token):
            framesetOK = self.parser.framesetOK
            self.startTagVoidFormatting(token)
            if ("type" in token["data"] and
                    token["data"]["type"].translate(asciiUpper2Lower) == "hidden"):
                # input type=hidden doesn't change framesetOK
                self.parser.framesetOK = framesetOK

        def startTagParamSource(self, token):
            self.tree.insertElement(token)
            self.tree.openElements.pop()
            token["selfClosingAcknowledged"] = True

        def startTagHr(self, token):
            if self.tree.elementInScope("p", variant="button"):
                self.endTagP(impliedTagToken("p"))
            self.tree.insertElement(token)
            self.tree.openElements.pop()
            token["selfClosingAcknowledged"] = True
            self.parser.framesetOK = False

        def startTagImage(self, token):
            # No really...
            self.parser.parseError("unexpected-start-tag-treated-as",
                                   {"originalName": "image", "newName": "img"})
            self.processStartTag(impliedTagToken("img", "StartTag",
                                                 attributes=token["data"],
                                                 selfClosing=token["selfClosing"]))

        def startTagIsIndex(self, token):
            self.parser.parseError("deprecated-tag", {"name": "isindex"})
            if self.tree.formPointer:
                return
            form_attrs = {}
            if "action" in token["data"]:
                form_attrs["action"] = token["data"]["action"]
            self.processStartTag(impliedTagToken("form", "StartTag",
                                                 attributes=form_attrs))
            self.processStartTag(impliedTagToken("hr", "StartTag"))
            self.processStartTag(impliedTagToken("label", "StartTag"))
            # XXX Localization ...
            if "prompt" in token["data"]:
                prompt = token["data"]["prompt"]
            else:
                prompt = "This is a searchable index. Enter search keywords: "
            self.processCharacters(
                {"type": tokenTypes["Characters"], "data": prompt})
            attributes = token["data"].copy()
            if "action" in attributes:
                del attributes["action"]
            if "prompt" in attributes:
                del attributes["prompt"]
            attributes["name"] = "isindex"
            self.processStartTag(impliedTagToken("input", "StartTag",
                                                 attributes=attributes,
                                                 selfClosing=token["selfClosing"]))
            self.processEndTag(impliedTagToken("label"))
            self.processStartTag(impliedTagToken("hr", "StartTag"))
            self.processEndTag(impliedTagToken("form"))

        def startTagTextarea(self, token):
            self.tree.insertElement(token)
            self.parser.tokenizer.state = self.parser.tokenizer.rcdataState
            self.processSpaceCharacters = self.processSpaceCharactersDropNewline
            self.parser.framesetOK = False

        def startTagIFrame(self, token):
            self.parser.framesetOK = False
            self.startTagRawtext(token)

        def startTagNoscript(self, token):
            if self.parser.scripting:
                self.startTagRawtext(token)
            else:
                self.startTagOther(token)

        def startTagRawtext(self, token):
            """iframe, noembed noframes, noscript(if scripting enabled)"""
            self.parser.parseRCDataRawtext(token, "RAWTEXT")

        def startTagOpt(self, token):
            if self.tree.openElements[-1].name == "option":
                self.parser.phase.processEndTag(impliedTagToken("option"))
            self.tree.reconstructActiveFormattingElements()
            self.parser.tree.insertElement(token)

        def startTagSelect(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.tree.insertElement(token)
            self.parser.framesetOK = False
            if self.parser.phase in (self.parser.phases["inTable"],
                                     self.parser.phases["inCaption"],
                                     self.parser.phases["inColumnGroup"],
                                     self.parser.phases["inTableBody"],
                                     self.parser.phases["inRow"],
                                     self.parser.phases["inCell"]):
                self.parser.phase = self.parser.phases["inSelectInTable"]
            else:
                self.parser.phase = self.parser.phases["inSelect"]

        def startTagRpRt(self, token):
            if self.tree.elementInScope("ruby"):
                self.tree.generateImpliedEndTags()
                if self.tree.openElements[-1].name != "ruby":
                    self.parser.parseError()
            self.tree.insertElement(token)

        def startTagMath(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.parser.adjustMathMLAttributes(token)
            self.parser.adjustForeignAttributes(token)
            token["namespace"] = namespaces["mathml"]
            self.tree.insertElement(token)
            # Need to get the parse error right for the case where the token
            # has a namespace not equal to the xmlns attribute
            if token["selfClosing"]:
                self.tree.openElements.pop()
                token["selfClosingAcknowledged"] = True

        def startTagSvg(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.parser.adjustSVGAttributes(token)
            self.parser.adjustForeignAttributes(token)
            token["namespace"] = namespaces["svg"]
            self.tree.insertElement(token)
            # Need to get the parse error right for the case where the token
            # has a namespace not equal to the xmlns attribute
            if token["selfClosing"]:
                self.tree.openElements.pop()
                token["selfClosingAcknowledged"] = True

        def startTagMisplaced(self, token):
            """ Elements that should be children of other elements that have a
            different insertion mode; here they are ignored
            "caption", "col", "colgroup", "frame", "frameset", "head",
            "option", "optgroup", "tbody", "td", "tfoot", "th", "thead",
            "tr", "noscript"
            """
            self.parser.parseError("unexpected-start-tag-ignored", {"name": token["name"]})

        def startTagOther(self, token):
            self.tree.reconstructActiveFormattingElements()
            self.tree.insertElement(token)

        def endTagP(self, token):
            if not self.tree.elementInScope("p", variant="button"):
                self.startTagCloseP(impliedTagToken("p", "StartTag"))
                self.parser.parseError("unexpected-end-tag", {"name": "p"})
                self.endTagP(impliedTagToken("p", "EndTag"))
            else:
                self.tree.generateImpliedEndTags("p")
                if self.tree.openElements[-1].name != "p":
                    self.parser.parseError("unexpected-end-tag", {"name": "p"})
                node = self.tree.openElements.pop()
                while node.name != "p":
                    node = self.tree.openElements.pop()

        def endTagBody(self, token):
            if not self.tree.elementInScope("body"):
                self.parser.parseError()
                return
            elif self.tree.openElements[-1].name != "body":
                for node in self.tree.openElements[2:]:
                    if node.name not in frozenset(("dd", "dt", "li", "optgroup",
                                                   "option", "p", "rp", "rt",
                                                   "tbody", "td", "tfoot",
                                                   "th", "thead", "tr", "body",
                                                   "html")):
                        # Not sure this is the correct name for the parse error
                        self.parser.parseError(
                            "expected-one-end-tag-but-got-another",
                            {"gotName": "body", "expectedName": node.name})
                        break
            self.parser.phase = self.parser.phases["afterBody"]

        def endTagHtml(self, token):
            # We repeat the test for the body end tag token being ignored here
            if self.tree.elementInScope("body"):
                self.endTagBody(impliedTagToken("body"))
                return token

        def endTagBlock(self, token):
            # Put us back in the right whitespace handling mode
            if token["name"] == "pre":
                self.processSpaceCharacters = self.processSpaceCharactersNonPre
            inScope = self.tree.elementInScope(token["name"])
            if inScope:
                self.tree.generateImpliedEndTags()
            if self.tree.openElements[-1].name != token["name"]:
                self.parser.parseError("end-tag-too-early", {"name": token["name"]})
            if inScope:
                node = self.tree.openElements.pop()
                while node.name != token["name"]:
                    node = self.tree.openElements.pop()

        def endTagForm(self, token):
            node = self.tree.formPointer
            self.tree.formPointer = None
            if node is None or not self.tree.elementInScope(node):
                self.parser.parseError("unexpected-end-tag",
                                       {"name": "form"})
            else:
                self.tree.generateImpliedEndTags()
                if self.tree.openElements[-1] != node:
                    self.parser.parseError("end-tag-too-early-ignored",
                                           {"name": "form"})
                self.tree.openElements.remove(node)

        def endTagListItem(self, token):
            if token["name"] == "li":
                variant = "list"
            else:
                variant = None
            if not self.tree.elementInScope(token["name"], variant=variant):
                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
            else:
                self.tree.generateImpliedEndTags(exclude=token["name"])
                if self.tree.openElements[-1].name != token["name"]:
                    self.parser.parseError(
                        "end-tag-too-early",
                        {"name": token["name"]})
                node = self.tree.openElements.pop()
                while node.name != token["name"]:
                    node = self.tree.openElements.pop()

        def endTagHeading(self, token):
            for item in headingElements:
                if self.tree.elementInScope(item):
                    self.tree.generateImpliedEndTags()
                    break
            if self.tree.openElements[-1].name != token["name"]:
                self.parser.parseError("end-tag-too-early", {"name": token["name"]})

            for item in headingElements:
                if self.tree.elementInScope(item):
                    item = self.tree.openElements.pop()
                    while item.name not in headingElements:
                        item = self.tree.openElements.pop()
                    break

        def endTagFormatting(self, token):
            """The much-feared adoption agency algorithm"""
            # http://svn.whatwg.org/webapps/complete.html#adoptionAgency revision 7867
            # XXX Better parseError messages appreciated.

            # Step 1
            outerLoopCounter = 0

            # Step 2
            while outerLoopCounter < 8:

                # Step 3
                outerLoopCounter += 1

                # Step 4:

                # Let the formatting element be the last element in
                # the list of active formatting elements that:
                # - is between the end of the list and the last scope
                # marker in the list, if any, or the start of the list
                # otherwise, and
                # - has the same tag name as the token.
                formattingElement = self.tree.elementInActiveFormattingElements(
                    token["name"])
                if (not formattingElement or
                    (formattingElement in self.tree.openElements and
                     not self.tree.elementInScope(formattingElement.name))):
                    # If there is no such node, then abort these steps
                    # and instead act as described in the "any other
                    # end tag" entry below.
                    self.endTagOther(token)
                    return

                # Otherwise, if there is such a node, but that node is
                # not in the stack of open elements, then this is a
                # parse error; remove the element from the list, and
                # abort these steps.
                elif formattingElement not in self.tree.openElements:
                    self.parser.parseError("adoption-agency-1.2", {"name": token["name"]})
                    self.tree.activeFormattingElements.remove(formattingElement)
                    return

                # Otherwise, if there is such a node, and that node is
                # also in the stack of open elements, but the element
                # is not in scope, then this is a parse error; ignore
                # the token, and abort these steps.
                elif not self.tree.elementInScope(formattingElement.name):
                    self.parser.parseError("adoption-agency-4.4", {"name": token["name"]})
                    return

                # Otherwise, there is a formatting element and that
                # element is in the stack and is in scope. If the
                # element is not the current node, this is a parse
                # error. In any case, proceed with the algorithm as
                # written in the following steps.
                else:
                    if formattingElement != self.tree.openElements[-1]:
                        self.parser.parseError("adoption-agency-1.3", {"name": token["name"]})

                # Step 5:

                # Let the furthest block be the topmost node in the
                # stack of open elements that is lower in the stack
                # than the formatting element, and is an element in
                # the special category. There might not be one.
                afeIndex = self.tree.openElements.index(formattingElement)
                furthestBlock = None
                for element in self.tree.openElements[afeIndex:]:
                    if element.nameTuple in specialElements:
                        furthestBlock = element
                        break

                # Step 6:

                # If there is no furthest block, then the UA must
                # first pop all the nodes from the bottom of the stack
                # of open elements, from the current node up to and
                # including the formatting element, then remove the
                # formatting element from the list of active
                # formatting elements, and finally abort these steps.
                if furthestBlock is None:
                    element = self.tree.openElements.pop()
                    while element != formattingElement:
                        element = self.tree.openElements.pop()
                    self.tree.activeFormattingElements.remove(element)
                    return

                # Step 7
                commonAncestor = self.tree.openElements[afeIndex - 1]

                # Step 8:
                # The bookmark is supposed to help us identify where to reinsert
                # nodes in step 15. We have to ensure that we reinsert nodes after
                # the node before the active formatting element. Note the bookmark
                # can move in step 9.7
                bookmark = self.tree.activeFormattingElements.index(formattingElement)

                # Step 9
                lastNode = node = furthestBlock
                innerLoopCounter = 0

                index = self.tree.openElements.index(node)
                while innerLoopCounter < 3:
                    innerLoopCounter += 1
                    # Node is element before node in open elements
                    index -= 1
                    node = self.tree.openElements[index]
                    if node not in self.tree.activeFormattingElements:
                        self.tree.openElements.remove(node)
                        continue
                    # Step 9.6
                    if node == formattingElement:
                        break
                    # Step 9.7
                    if lastNode == furthestBlock:
                        bookmark = self.tree.activeFormattingElements.index(node) + 1
                    # Step 9.8
                    clone = node.cloneNode()
                    # Replace node with clone
                    self.tree.activeFormattingElements[
                        self.tree.activeFormattingElements.index(node)] = clone
                    self.tree.openElements[
                        self.tree.openElements.index(node)] = clone
                    node = clone
                    # Step 9.9
                    # Remove lastNode from its parents, if any
                    if lastNode.parent:
                        lastNode.parent.removeChild(lastNode)
                    node.appendChild(lastNode)
                    # Step 9.10
                    lastNode = node

                # Step 10
                # Foster parent lastNode if commonAncestor is a
                # table, tbody, tfoot, thead, or tr we need to foster
                # parent the lastNode
                if lastNode.parent:
                    lastNode.parent.removeChild(lastNode)

                if commonAncestor.name in frozenset(("table", "tbody", "tfoot", "thead", "tr")):
                    parent, insertBefore = self.tree.getTableMisnestedNodePosition()
                    parent.insertBefore(lastNode, insertBefore)
                else:
                    commonAncestor.appendChild(lastNode)

                # Step 11
                clone = formattingElement.cloneNode()

                # Step 12
                furthestBlock.reparentChildren(clone)

                # Step 13
                furthestBlock.appendChild(clone)

                # Step 14
                self.tree.activeFormattingElements.remove(formattingElement)
                self.tree.activeFormattingElements.insert(bookmark, clone)

                # Step 15
                self.tree.openElements.remove(formattingElement)
                self.tree.openElements.insert(
                    self.tree.openElements.index(furthestBlock) + 1, clone)

        def endTagAppletMarqueeObject(self, token):
            if self.tree.elementInScope(token["name"]):
                self.tree.generateImpliedEndTags()
            if self.tree.openElements[-1].name != token["name"]:
                self.parser.parseError("end-tag-too-early", {"name": token["name"]})

            if self.tree.elementInScope(token["name"]):
                element = self.tree.openElements.pop()
                while element.name != token["name"]:
                    element = self.tree.openElements.pop()
                self.tree.clearActiveFormattingElements()

        def endTagBr(self, token):
            self.parser.parseError("unexpected-end-tag-treated-as",
                                   {"originalName": "br", "newName": "br element"})
            self.tree.reconstructActiveFormattingElements()
            self.tree.insertElement(impliedTagToken("br", "StartTag"))
            self.tree.openElements.pop()

        def endTagOther(self, token):
            for node in self.tree.openElements[::-1]:
                if node.name == token["name"]:
                    self.tree.generateImpliedEndTags(exclude=token["name"])
                    if self.tree.openElements[-1].name != token["name"]:
                        self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
                    while self.tree.openElements.pop() != node:
                        pass
                    break
                else:
                    if node.nameTuple in specialElements:
                        self.parser.parseError("unexpected-end-tag", {"name": token["name"]})
                        break

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            (("base", "basefont", "bgsound", "command", "link", "meta",
              "script", "style", "title"),
             startTagProcessInHead),
            ("body", startTagBody),
            ("frameset", startTagFrameset),
            (("address", "article", "aside", "blockquote", "center", "details",
              "dir", "div", "dl", "fieldset", "figcaption", "figure",
              "footer", "header", "hgroup", "main", "menu", "nav", "ol", "p",
              "section", "summary", "ul"),
             startTagCloseP),
            (headingElements, startTagHeading),
            (("pre", "listing"), startTagPreListing),
            ("form", startTagForm),
            (("li", "dd", "dt"), startTagListItem),
            ("plaintext", startTagPlaintext),
            ("a", startTagA),
            (("b", "big", "code", "em", "font", "i", "s", "small", "strike",
              "strong", "tt", "u"), startTagFormatting),
            ("nobr", startTagNobr),
            ("button", startTagButton),
            (("applet", "marquee", "object"), startTagAppletMarqueeObject),
            ("xmp", startTagXmp),
            ("table", startTagTable),
            (("area", "br", "embed", "img", "keygen", "wbr"),
             startTagVoidFormatting),
            (("param", "source", "track"), startTagParamSource),
            ("input", startTagInput),
            ("hr", startTagHr),
            ("image", startTagImage),
            ("isindex", startTagIsIndex),
            ("textarea", startTagTextarea),
            ("iframe", startTagIFrame),
            ("noscript", startTagNoscript),
            (("noembed", "noframes"), startTagRawtext),
            ("select", startTagSelect),
            (("rp", "rt"), startTagRpRt),
            (("option", "optgroup"), startTagOpt),
            (("math"), startTagMath),
            (("svg"), startTagSvg),
            (("caption", "col", "colgroup", "frame", "head",
              "tbody", "td", "tfoot", "th", "thead",
              "tr"), startTagMisplaced)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("body", endTagBody),
            ("html", endTagHtml),
            (("address", "article", "aside", "blockquote", "button", "center",
              "details", "dialog", "dir", "div", "dl", "fieldset", "figcaption", "figure",
              "footer", "header", "hgroup", "listing", "main", "menu", "nav", "ol", "pre",
              "section", "summary", "ul"), endTagBlock),
            ("form", endTagForm),
            ("p", endTagP),
            (("dd", "dt", "li"), endTagListItem),
            (headingElements, endTagHeading),
            (("a", "b", "big", "code", "em", "font", "i", "nobr", "s", "small",
              "strike", "strong", "tt", "u"), endTagFormatting),
            (("applet", "marquee", "object"), endTagAppletMarqueeObject),
            ("br", endTagBr),
        ])
        endTagHandler.default = endTagOther

    class TextPhase(Phase):
        __slots__ = tuple()

        def processCharacters(self, token):
            self.tree.insertText(token["data"])

        def processEOF(self):
            self.parser.parseError("expected-named-closing-tag-but-got-eof",
                                   {"name": self.tree.openElements[-1].name})
            self.tree.openElements.pop()
            self.parser.phase = self.parser.originalPhase
            return True

        def startTagOther(self, token):
            assert False, "Tried to process start tag %s in RCDATA/RAWTEXT mode" % token['name']

        def endTagScript(self, token):
            node = self.tree.openElements.pop()
            assert node.name == "script"
            self.parser.phase = self.parser.originalPhase
            # The rest of this method is all stuff that only happens if
            # document.write works

        def endTagOther(self, token):
            self.tree.openElements.pop()
            self.parser.phase = self.parser.originalPhase

        startTagHandler = _utils.MethodDispatcher([])
        startTagHandler.default = startTagOther
        endTagHandler = _utils.MethodDispatcher([
            ("script", endTagScript)])
        endTagHandler.default = endTagOther

    class InTablePhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#in-table
        __slots__ = tuple()

        # helper methods
        def clearStackToTableContext(self):
            # "clear the stack back to a table context"
            while self.tree.openElements[-1].name not in ("table", "html"):
                # self.parser.parseError("unexpected-implied-end-tag-in-table",
                #  {"name":  self.tree.openElements[-1].name})
                self.tree.openElements.pop()
            # When the current node is <html> it's an innerHTML case

        # processing methods
        def processEOF(self):
            if self.tree.openElements[-1].name != "html":
                self.parser.parseError("eof-in-table")
            else:
                assert self.parser.innerHTML
            # Stop parsing

        def processSpaceCharacters(self, token):
            originalPhase = self.parser.phase
            self.parser.phase = self.parser.phases["inTableText"]
            self.parser.phase.originalPhase = originalPhase
            self.parser.phase.processSpaceCharacters(token)

        def processCharacters(self, token):
            originalPhase = self.parser.phase
            self.parser.phase = self.parser.phases["inTableText"]
            self.parser.phase.originalPhase = originalPhase
            self.parser.phase.processCharacters(token)

        def insertText(self, token):
            # If we get here there must be at least one non-whitespace character
            # Do the table magic!
            self.tree.insertFromTable = True
            self.parser.phases["inBody"].processCharacters(token)
            self.tree.insertFromTable = False

        def startTagCaption(self, token):
            self.clearStackToTableContext()
            self.tree.activeFormattingElements.append(Marker)
            self.tree.insertElement(token)
            self.parser.phase = self.parser.phases["inCaption"]

        def startTagColgroup(self, token):
            self.clearStackToTableContext()
            self.tree.insertElement(token)
            self.parser.phase = self.parser.phases["inColumnGroup"]

        def startTagCol(self, token):
            self.startTagColgroup(impliedTagToken("colgroup", "StartTag"))
            return token

        def startTagRowGroup(self, token):
            self.clearStackToTableContext()
            self.tree.insertElement(token)
            self.parser.phase = self.parser.phases["inTableBody"]

        def startTagImplyTbody(self, token):
            self.startTagRowGroup(impliedTagToken("tbody", "StartTag"))
            return token

        def startTagTable(self, token):
            self.parser.parseError("unexpected-start-tag-implies-end-tag",
                                   {"startName": "table", "endName": "table"})
            self.parser.phase.processEndTag(impliedTagToken("table"))
            if not self.parser.innerHTML:
                return token

        def startTagStyleScript(self, token):
            return self.parser.phases["inHead"].processStartTag(token)

        def startTagInput(self, token):
            if ("type" in token["data"] and
                    token["data"]["type"].translate(asciiUpper2Lower) == "hidden"):
                self.parser.parseError("unexpected-hidden-input-in-table")
                self.tree.insertElement(token)
                # XXX associate with form
                self.tree.openElements.pop()
            else:
                self.startTagOther(token)

        def startTagForm(self, token):
            self.parser.parseError("unexpected-form-in-table")
            if self.tree.formPointer is None:
                self.tree.insertElement(token)
                self.tree.formPointer = self.tree.openElements[-1]
                self.tree.openElements.pop()

        def startTagOther(self, token):
            self.parser.parseError("unexpected-start-tag-implies-table-voodoo", {"name": token["name"]})
            # Do the table magic!
            self.tree.insertFromTable = True
            self.parser.phases["inBody"].processStartTag(token)
            self.tree.insertFromTable = False

        def endTagTable(self, token):
            if self.tree.elementInScope("table", variant="table"):
                self.tree.generateImpliedEndTags()
                if self.tree.openElements[-1].name != "table":
                    self.parser.parseError("end-tag-too-early-named",
                                           {"gotName": "table",
                                            "expectedName": self.tree.openElements[-1].name})
                while self.tree.openElements[-1].name != "table":
                    self.tree.openElements.pop()
                self.tree.openElements.pop()
                self.parser.resetInsertionMode()
            else:
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()

        def endTagIgnore(self, token):
            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})

        def endTagOther(self, token):
            self.parser.parseError("unexpected-end-tag-implies-table-voodoo", {"name": token["name"]})
            # Do the table magic!
            self.tree.insertFromTable = True
            self.parser.phases["inBody"].processEndTag(token)
            self.tree.insertFromTable = False

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            ("caption", startTagCaption),
            ("colgroup", startTagColgroup),
            ("col", startTagCol),
            (("tbody", "tfoot", "thead"), startTagRowGroup),
            (("td", "th", "tr"), startTagImplyTbody),
            ("table", startTagTable),
            (("style", "script"), startTagStyleScript),
            ("input", startTagInput),
            ("form", startTagForm)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("table", endTagTable),
            (("body", "caption", "col", "colgroup", "html", "tbody", "td",
              "tfoot", "th", "thead", "tr"), endTagIgnore)
        ])
        endTagHandler.default = endTagOther

    class InTableTextPhase(Phase):
        __slots__ = ("originalPhase", "characterTokens")

        def __init__(self, *args, **kwargs):
            super(InTableTextPhase, self).__init__(*args, **kwargs)
            self.originalPhase = None
            self.characterTokens = []

        def flushCharacters(self):
            data = "".join([item["data"] for item in self.characterTokens])
            if any([item not in spaceCharacters for item in data]):
                token = {"type": tokenTypes["Characters"], "data": data}
                self.parser.phases["inTable"].insertText(token)
            elif data:
                self.tree.insertText(data)
            self.characterTokens = []

        def processComment(self, token):
            self.flushCharacters()
            self.parser.phase = self.originalPhase
            return token

        def processEOF(self):
            self.flushCharacters()
            self.parser.phase = self.originalPhase
            return True

        def processCharacters(self, token):
            if token["data"] == "\u0000":
                return
            self.characterTokens.append(token)

        def processSpaceCharacters(self, token):
            # pretty sure we should never reach here
            self.characterTokens.append(token)
    #        assert False

        def processStartTag(self, token):
            self.flushCharacters()
            self.parser.phase = self.originalPhase
            return token

        def processEndTag(self, token):
            self.flushCharacters()
            self.parser.phase = self.originalPhase
            return token

    class InCaptionPhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#in-caption
        __slots__ = tuple()

        def ignoreEndTagCaption(self):
            return not self.tree.elementInScope("caption", variant="table")

        def processEOF(self):
            self.parser.phases["inBody"].processEOF()

        def processCharacters(self, token):
            return self.parser.phases["inBody"].processCharacters(token)

        def startTagTableElement(self, token):
            self.parser.parseError()
            # XXX Have to duplicate logic here to find out if the tag is ignored
            ignoreEndTag = self.ignoreEndTagCaption()
            self.parser.phase.processEndTag(impliedTagToken("caption"))
            if not ignoreEndTag:
                return token

        def startTagOther(self, token):
            return self.parser.phases["inBody"].processStartTag(token)

        def endTagCaption(self, token):
            if not self.ignoreEndTagCaption():
                # AT this code is quite similar to endTagTable in "InTable"
                self.tree.generateImpliedEndTags()
                if self.tree.openElements[-1].name != "caption":
                    self.parser.parseError("expected-one-end-tag-but-got-another",
                                           {"gotName": "caption",
                                            "expectedName": self.tree.openElements[-1].name})
                while self.tree.openElements[-1].name != "caption":
                    self.tree.openElements.pop()
                self.tree.openElements.pop()
                self.tree.clearActiveFormattingElements()
                self.parser.phase = self.parser.phases["inTable"]
            else:
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()

        def endTagTable(self, token):
            self.parser.parseError()
            ignoreEndTag = self.ignoreEndTagCaption()
            self.parser.phase.processEndTag(impliedTagToken("caption"))
            if not ignoreEndTag:
                return token

        def endTagIgnore(self, token):
            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})

        def endTagOther(self, token):
            return self.parser.phases["inBody"].processEndTag(token)

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",
              "thead", "tr"), startTagTableElement)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("caption", endTagCaption),
            ("table", endTagTable),
            (("body", "col", "colgroup", "html", "tbody", "td", "tfoot", "th",
              "thead", "tr"), endTagIgnore)
        ])
        endTagHandler.default = endTagOther

    class InColumnGroupPhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#in-column
        __slots__ = tuple()

        def ignoreEndTagColgroup(self):
            return self.tree.openElements[-1].name == "html"

        def processEOF(self):
            if self.tree.openElements[-1].name == "html":
                assert self.parser.innerHTML
                return
            else:
                ignoreEndTag = self.ignoreEndTagColgroup()
                self.endTagColgroup(impliedTagToken("colgroup"))
                if not ignoreEndTag:
                    return True

        def processCharacters(self, token):
            ignoreEndTag = self.ignoreEndTagColgroup()
            self.endTagColgroup(impliedTagToken("colgroup"))
            if not ignoreEndTag:
                return token

        def startTagCol(self, token):
            self.tree.insertElement(token)
            self.tree.openElements.pop()
            token["selfClosingAcknowledged"] = True

        def startTagOther(self, token):
            ignoreEndTag = self.ignoreEndTagColgroup()
            self.endTagColgroup(impliedTagToken("colgroup"))
            if not ignoreEndTag:
                return token

        def endTagColgroup(self, token):
            if self.ignoreEndTagColgroup():
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()
            else:
                self.tree.openElements.pop()
                self.parser.phase = self.parser.phases["inTable"]

        def endTagCol(self, token):
            self.parser.parseError("no-end-tag", {"name": "col"})

        def endTagOther(self, token):
            ignoreEndTag = self.ignoreEndTagColgroup()
            self.endTagColgroup(impliedTagToken("colgroup"))
            if not ignoreEndTag:
                return token

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            ("col", startTagCol)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("colgroup", endTagColgroup),
            ("col", endTagCol)
        ])
        endTagHandler.default = endTagOther

    class InTableBodyPhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#in-table0
        __slots__ = tuple()

        # helper methods
        def clearStackToTableBodyContext(self):
            while self.tree.openElements[-1].name not in ("tbody", "tfoot",
                                                          "thead", "html"):
                # self.parser.parseError("unexpected-implied-end-tag-in-table",
                #  {"name": self.tree.openElements[-1].name})
                self.tree.openElements.pop()
            if self.tree.openElements[-1].name == "html":
                assert self.parser.innerHTML

        # the rest
        def processEOF(self):
            self.parser.phases["inTable"].processEOF()

        def processSpaceCharacters(self, token):
            return self.parser.phases["inTable"].processSpaceCharacters(token)

        def processCharacters(self, token):
            return self.parser.phases["inTable"].processCharacters(token)

        def startTagTr(self, token):
            self.clearStackToTableBodyContext()
            self.tree.insertElement(token)
            self.parser.phase = self.parser.phases["inRow"]

        def startTagTableCell(self, token):
            self.parser.parseError("unexpected-cell-in-table-body",
                                   {"name": token["name"]})
            self.startTagTr(impliedTagToken("tr", "StartTag"))
            return token

        def startTagTableOther(self, token):
            # XXX AT Any ideas on how to share this with endTagTable?
            if (self.tree.elementInScope("tbody", variant="table") or
                self.tree.elementInScope("thead", variant="table") or
                    self.tree.elementInScope("tfoot", variant="table")):
                self.clearStackToTableBodyContext()
                self.endTagTableRowGroup(
                    impliedTagToken(self.tree.openElements[-1].name))
                return token
            else:
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()

        def startTagOther(self, token):
            return self.parser.phases["inTable"].processStartTag(token)

        def endTagTableRowGroup(self, token):
            if self.tree.elementInScope(token["name"], variant="table"):
                self.clearStackToTableBodyContext()
                self.tree.openElements.pop()
                self.parser.phase = self.parser.phases["inTable"]
            else:
                self.parser.parseError("unexpected-end-tag-in-table-body",
                                       {"name": token["name"]})

        def endTagTable(self, token):
            if (self.tree.elementInScope("tbody", variant="table") or
                self.tree.elementInScope("thead", variant="table") or
                    self.tree.elementInScope("tfoot", variant="table")):
                self.clearStackToTableBodyContext()
                self.endTagTableRowGroup(
                    impliedTagToken(self.tree.openElements[-1].name))
                return token
            else:
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()

        def endTagIgnore(self, token):
            self.parser.parseError("unexpected-end-tag-in-table-body",
                                   {"name": token["name"]})

        def endTagOther(self, token):
            return self.parser.phases["inTable"].processEndTag(token)

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            ("tr", startTagTr),
            (("td", "th"), startTagTableCell),
            (("caption", "col", "colgroup", "tbody", "tfoot", "thead"),
             startTagTableOther)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            (("tbody", "tfoot", "thead"), endTagTableRowGroup),
            ("table", endTagTable),
            (("body", "caption", "col", "colgroup", "html", "td", "th",
              "tr"), endTagIgnore)
        ])
        endTagHandler.default = endTagOther

    class InRowPhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#in-row
        __slots__ = tuple()

        # helper methods (XXX unify this with other table helper methods)
        def clearStackToTableRowContext(self):
            while self.tree.openElements[-1].name not in ("tr", "html"):
                self.parser.parseError("unexpected-implied-end-tag-in-table-row",
                                       {"name": self.tree.openElements[-1].name})
                self.tree.openElements.pop()

        def ignoreEndTagTr(self):
            return not self.tree.elementInScope("tr", variant="table")

        # the rest
        def processEOF(self):
            self.parser.phases["inTable"].processEOF()

        def processSpaceCharacters(self, token):
            return self.parser.phases["inTable"].processSpaceCharacters(token)

        def processCharacters(self, token):
            return self.parser.phases["inTable"].processCharacters(token)

        def startTagTableCell(self, token):
            self.clearStackToTableRowContext()
            self.tree.insertElement(token)
            self.parser.phase = self.parser.phases["inCell"]
            self.tree.activeFormattingElements.append(Marker)

        def startTagTableOther(self, token):
            ignoreEndTag = self.ignoreEndTagTr()
            self.endTagTr(impliedTagToken("tr"))
            # XXX how are we sure it's always ignored in the innerHTML case?
            if not ignoreEndTag:
                return token

        def startTagOther(self, token):
            return self.parser.phases["inTable"].processStartTag(token)

        def endTagTr(self, token):
            if not self.ignoreEndTagTr():
                self.clearStackToTableRowContext()
                self.tree.openElements.pop()
                self.parser.phase = self.parser.phases["inTableBody"]
            else:
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()

        def endTagTable(self, token):
            ignoreEndTag = self.ignoreEndTagTr()
            self.endTagTr(impliedTagToken("tr"))
            # Reprocess the current tag if the tr end tag was not ignored
            # XXX how are we sure it's always ignored in the innerHTML case?
            if not ignoreEndTag:
                return token

        def endTagTableRowGroup(self, token):
            if self.tree.elementInScope(token["name"], variant="table"):
                self.endTagTr(impliedTagToken("tr"))
                return token
            else:
                self.parser.parseError()

        def endTagIgnore(self, token):
            self.parser.parseError("unexpected-end-tag-in-table-row",
                                   {"name": token["name"]})

        def endTagOther(self, token):
            return self.parser.phases["inTable"].processEndTag(token)

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            (("td", "th"), startTagTableCell),
            (("caption", "col", "colgroup", "tbody", "tfoot", "thead",
              "tr"), startTagTableOther)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("tr", endTagTr),
            ("table", endTagTable),
            (("tbody", "tfoot", "thead"), endTagTableRowGroup),
            (("body", "caption", "col", "colgroup", "html", "td", "th"),
             endTagIgnore)
        ])
        endTagHandler.default = endTagOther

    class InCellPhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#in-cell
        __slots__ = tuple()

        # helper
        def closeCell(self):
            if self.tree.elementInScope("td", variant="table"):
                self.endTagTableCell(impliedTagToken("td"))
            elif self.tree.elementInScope("th", variant="table"):
                self.endTagTableCell(impliedTagToken("th"))

        # the rest
        def processEOF(self):
            self.parser.phases["inBody"].processEOF()

        def processCharacters(self, token):
            return self.parser.phases["inBody"].processCharacters(token)

        def startTagTableOther(self, token):
            if (self.tree.elementInScope("td", variant="table") or
                    self.tree.elementInScope("th", variant="table")):
                self.closeCell()
                return token
            else:
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()

        def startTagOther(self, token):
            return self.parser.phases["inBody"].processStartTag(token)

        def endTagTableCell(self, token):
            if self.tree.elementInScope(token["name"], variant="table"):
                self.tree.generateImpliedEndTags(token["name"])
                if self.tree.openElements[-1].name != token["name"]:
                    self.parser.parseError("unexpected-cell-end-tag",
                                           {"name": token["name"]})
                    while True:
                        node = self.tree.openElements.pop()
                        if node.name == token["name"]:
                            break
                else:
                    self.tree.openElements.pop()
                self.tree.clearActiveFormattingElements()
                self.parser.phase = self.parser.phases["inRow"]
            else:
                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})

        def endTagIgnore(self, token):
            self.parser.parseError("unexpected-end-tag", {"name": token["name"]})

        def endTagImply(self, token):
            if self.tree.elementInScope(token["name"], variant="table"):
                self.closeCell()
                return token
            else:
                # sometimes innerHTML case
                self.parser.parseError()

        def endTagOther(self, token):
            return self.parser.phases["inBody"].processEndTag(token)

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",
              "thead", "tr"), startTagTableOther)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            (("td", "th"), endTagTableCell),
            (("body", "caption", "col", "colgroup", "html"), endTagIgnore),
            (("table", "tbody", "tfoot", "thead", "tr"), endTagImply)
        ])
        endTagHandler.default = endTagOther

    class InSelectPhase(Phase):
        __slots__ = tuple()

        # http://www.whatwg.org/specs/web-apps/current-work/#in-select
        def processEOF(self):
            if self.tree.openElements[-1].name != "html":
                self.parser.parseError("eof-in-select")
            else:
                assert self.parser.innerHTML

        def processCharacters(self, token):
            if token["data"] == "\u0000":
                return
            self.tree.insertText(token["data"])

        def startTagOption(self, token):
            # We need to imply </option> if <option> is the current node.
            if self.tree.openElements[-1].name == "option":
                self.tree.openElements.pop()
            self.tree.insertElement(token)

        def startTagOptgroup(self, token):
            if self.tree.openElements[-1].name == "option":
                self.tree.openElements.pop()
            if self.tree.openElements[-1].name == "optgroup":
                self.tree.openElements.pop()
            self.tree.insertElement(token)

        def startTagSelect(self, token):
            self.parser.parseError("unexpected-select-in-select")
            self.endTagSelect(impliedTagToken("select"))

        def startTagInput(self, token):
            self.parser.parseError("unexpected-input-in-select")
            if self.tree.elementInScope("select", variant="select"):
                self.endTagSelect(impliedTagToken("select"))
                return token
            else:
                assert self.parser.innerHTML

        def startTagScript(self, token):
            return self.parser.phases["inHead"].processStartTag(token)

        def startTagOther(self, token):
            self.parser.parseError("unexpected-start-tag-in-select",
                                   {"name": token["name"]})

        def endTagOption(self, token):
            if self.tree.openElements[-1].name == "option":
                self.tree.openElements.pop()
            else:
                self.parser.parseError("unexpected-end-tag-in-select",
                                       {"name": "option"})

        def endTagOptgroup(self, token):
            # </optgroup> implicitly closes <option>
            if (self.tree.openElements[-1].name == "option" and
                    self.tree.openElements[-2].name == "optgroup"):
                self.tree.openElements.pop()
            # It also closes </optgroup>
            if self.tree.openElements[-1].name == "optgroup":
                self.tree.openElements.pop()
            # But nothing else
            else:
                self.parser.parseError("unexpected-end-tag-in-select",
                                       {"name": "optgroup"})

        def endTagSelect(self, token):
            if self.tree.elementInScope("select", variant="select"):
                node = self.tree.openElements.pop()
                while node.name != "select":
                    node = self.tree.openElements.pop()
                self.parser.resetInsertionMode()
            else:
                # innerHTML case
                assert self.parser.innerHTML
                self.parser.parseError()

        def endTagOther(self, token):
            self.parser.parseError("unexpected-end-tag-in-select",
                                   {"name": token["name"]})

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            ("option", startTagOption),
            ("optgroup", startTagOptgroup),
            ("select", startTagSelect),
            (("input", "keygen", "textarea"), startTagInput),
            ("script", startTagScript)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("option", endTagOption),
            ("optgroup", endTagOptgroup),
            ("select", endTagSelect)
        ])
        endTagHandler.default = endTagOther

    class InSelectInTablePhase(Phase):
        __slots__ = tuple()

        def processEOF(self):
            self.parser.phases["inSelect"].processEOF()

        def processCharacters(self, token):
            return self.parser.phases["inSelect"].processCharacters(token)

        def startTagTable(self, token):
            self.parser.parseError("unexpected-table-element-start-tag-in-select-in-table", {"name": token["name"]})
            self.endTagOther(impliedTagToken("select"))
            return token

        def startTagOther(self, token):
            return self.parser.phases["inSelect"].processStartTag(token)

        def endTagTable(self, token):
            self.parser.parseError("unexpected-table-element-end-tag-in-select-in-table", {"name": token["name"]})
            if self.tree.elementInScope(token["name"], variant="table"):
                self.endTagOther(impliedTagToken("select"))
                return token

        def endTagOther(self, token):
            return self.parser.phases["inSelect"].processEndTag(token)

        startTagHandler = _utils.MethodDispatcher([
            (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),
             startTagTable)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),
             endTagTable)
        ])
        endTagHandler.default = endTagOther

    class InForeignContentPhase(Phase):
        __slots__ = tuple()

        breakoutElements = frozenset(["b", "big", "blockquote", "body", "br",
                                      "center", "code", "dd", "div", "dl", "dt",
                                      "em", "embed", "h1", "h2", "h3",
                                      "h4", "h5", "h6", "head", "hr", "i", "img",
                                      "li", "listing", "menu", "meta", "nobr",
                                      "ol", "p", "pre", "ruby", "s", "small",
                                      "span", "strong", "strike", "sub", "sup",
                                      "table", "tt", "u", "ul", "var"])

        def adjustSVGTagNames(self, token):
            replacements = {"altglyph": "altGlyph",
                            "altglyphdef": "altGlyphDef",
                            "altglyphitem": "altGlyphItem",
                            "animatecolor": "animateColor",
                            "animatemotion": "animateMotion",
                            "animatetransform": "animateTransform",
                            "clippath": "clipPath",
                            "feblend": "feBlend",
                            "fecolormatrix": "feColorMatrix",
                            "fecomponenttransfer": "feComponentTransfer",
                            "fecomposite": "feComposite",
                            "feconvolvematrix": "feConvolveMatrix",
                            "fediffuselighting": "feDiffuseLighting",
                            "fedisplacementmap": "feDisplacementMap",
                            "fedistantlight": "feDistantLight",
                            "feflood": "feFlood",
                            "fefunca": "feFuncA",
                            "fefuncb": "feFuncB",
                            "fefuncg": "feFuncG",
                            "fefuncr": "feFuncR",
                            "fegaussianblur": "feGaussianBlur",
                            "feimage": "feImage",
                            "femerge": "feMerge",
                            "femergenode": "feMergeNode",
                            "femorphology": "feMorphology",
                            "feoffset": "feOffset",
                            "fepointlight": "fePointLight",
                            "fespecularlighting": "feSpecularLighting",
                            "fespotlight": "feSpotLight",
                            "fetile": "feTile",
                            "feturbulence": "feTurbulence",
                            "foreignobject": "foreignObject",
                            "glyphref": "glyphRef",
                            "lineargradient": "linearGradient",
                            "radialgradient": "radialGradient",
                            "textpath": "textPath"}

            if token["name"] in replacements:
                token["name"] = replacements[token["name"]]

        def processCharacters(self, token):
            if token["data"] == "\u0000":
                token["data"] = "\uFFFD"
            elif (self.parser.framesetOK and
                  any(char not in spaceCharacters for char in token["data"])):
                self.parser.framesetOK = False
            Phase.processCharacters(self, token)

        def processStartTag(self, token):
            currentNode = self.tree.openElements[-1]
            if (token["name"] in self.breakoutElements or
                (token["name"] == "font" and
                 set(token["data"].keys()) & {"color", "face", "size"})):
                self.parser.parseError("unexpected-html-element-in-foreign-content",
                                       {"name": token["name"]})
                while (self.tree.openElements[-1].namespace !=
                       self.tree.defaultNamespace and
                       not self.parser.isHTMLIntegrationPoint(self.tree.openElements[-1]) and
                       not self.parser.isMathMLTextIntegrationPoint(self.tree.openElements[-1])):
                    self.tree.openElements.pop()
                return token

            else:
                if currentNode.namespace == namespaces["mathml"]:
                    self.parser.adjustMathMLAttributes(token)
                elif currentNode.namespace == namespaces["svg"]:
                    self.adjustSVGTagNames(token)
                    self.parser.adjustSVGAttributes(token)
                self.parser.adjustForeignAttributes(token)
                token["namespace"] = currentNode.namespace
                self.tree.insertElement(token)
                if token["selfClosing"]:
                    self.tree.openElements.pop()
                    token["selfClosingAcknowledged"] = True

        def processEndTag(self, token):
            nodeIndex = len(self.tree.openElements) - 1
            node = self.tree.openElements[-1]
            if node.name.translate(asciiUpper2Lower) != token["name"]:
                self.parser.parseError("unexpected-end-tag", {"name": token["name"]})

            while True:
                if node.name.translate(asciiUpper2Lower) == token["name"]:
                    # XXX this isn't in the spec but it seems necessary
                    if self.parser.phase == self.parser.phases["inTableText"]:
                        self.parser.phase.flushCharacters()
                        self.parser.phase = self.parser.phase.originalPhase
                    while self.tree.openElements.pop() != node:
                        assert self.tree.openElements
                    new_token = None
                    break
                nodeIndex -= 1

                node = self.tree.openElements[nodeIndex]
                if node.namespace != self.tree.defaultNamespace:
                    continue
                else:
                    new_token = self.parser.phase.processEndTag(token)
                    break
            return new_token

    class AfterBodyPhase(Phase):
        __slots__ = tuple()

        def processEOF(self):
            # Stop parsing
            pass

        def processComment(self, token):
            # This is needed because data is to be appended to the <html> element
            # here and not to whatever is currently open.
            self.tree.insertComment(token, self.tree.openElements[0])

        def processCharacters(self, token):
            self.parser.parseError("unexpected-char-after-body")
            self.parser.phase = self.parser.phases["inBody"]
            return token

        def startTagHtml(self, token):
            return self.parser.phases["inBody"].processStartTag(token)

        def startTagOther(self, token):
            self.parser.parseError("unexpected-start-tag-after-body",
                                   {"name": token["name"]})
            self.parser.phase = self.parser.phases["inBody"]
            return token

        def endTagHtml(self, name):
            if self.parser.innerHTML:
                self.parser.parseError("unexpected-end-tag-after-body-innerhtml")
            else:
                self.parser.phase = self.parser.phases["afterAfterBody"]

        def endTagOther(self, token):
            self.parser.parseError("unexpected-end-tag-after-body",
                                   {"name": token["name"]})
            self.parser.phase = self.parser.phases["inBody"]
            return token

        startTagHandler = _utils.MethodDispatcher([
            ("html", startTagHtml)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([("html", endTagHtml)])
        endTagHandler.default = endTagOther

    class InFramesetPhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#in-frameset
        __slots__ = tuple()

        def processEOF(self):
            if self.tree.openElements[-1].name != "html":
                self.parser.parseError("eof-in-frameset")
            else:
                assert self.parser.innerHTML

        def processCharacters(self, token):
            self.parser.parseError("unexpected-char-in-frameset")

        def startTagFrameset(self, token):
            self.tree.insertElement(token)

        def startTagFrame(self, token):
            self.tree.insertElement(token)
            self.tree.openElements.pop()

        def startTagNoframes(self, token):
            return self.parser.phases["inBody"].processStartTag(token)

        def startTagOther(self, token):
            self.parser.parseError("unexpected-start-tag-in-frameset",
                                   {"name": token["name"]})

        def endTagFrameset(self, token):
            if self.tree.openElements[-1].name == "html":
                # innerHTML case
                self.parser.parseError("unexpected-frameset-in-frameset-innerhtml")
            else:
                self.tree.openElements.pop()
            if (not self.parser.innerHTML and
                    self.tree.openElements[-1].name != "frameset"):
                # If we're not in innerHTML mode and the current node is not a
                # "frameset" element (anymore) then switch.
                self.parser.phase = self.parser.phases["afterFrameset"]

        def endTagOther(self, token):
            self.parser.parseError("unexpected-end-tag-in-frameset",
                                   {"name": token["name"]})

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            ("frameset", startTagFrameset),
            ("frame", startTagFrame),
            ("noframes", startTagNoframes)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("frameset", endTagFrameset)
        ])
        endTagHandler.default = endTagOther

    class AfterFramesetPhase(Phase):
        # http://www.whatwg.org/specs/web-apps/current-work/#after3
        __slots__ = tuple()

        def processEOF(self):
            # Stop parsing
            pass

        def processCharacters(self, token):
            self.parser.parseError("unexpected-char-after-frameset")

        def startTagNoframes(self, token):
            return self.parser.phases["inHead"].processStartTag(token)

        def startTagOther(self, token):
            self.parser.parseError("unexpected-start-tag-after-frameset",
                                   {"name": token["name"]})

        def endTagHtml(self, token):
            self.parser.phase = self.parser.phases["afterAfterFrameset"]

        def endTagOther(self, token):
            self.parser.parseError("unexpected-end-tag-after-frameset",
                                   {"name": token["name"]})

        startTagHandler = _utils.MethodDispatcher([
            ("html", Phase.startTagHtml),
            ("noframes", startTagNoframes)
        ])
        startTagHandler.default = startTagOther

        endTagHandler = _utils.MethodDispatcher([
            ("html", endTagHtml)
        ])
        endTagHandler.default = endTagOther

    class AfterAfterBodyPhase(Phase):
        __slots__ = tuple()

        def processEOF(self):
            pass

        def processComment(self, token):
            self.tree.insertComment(token, self.tree.document)

        def processSpaceCharacters(self, token):
            return self.parser.phases["inBody"].processSpaceCharacters(token)

        def processCharacters(self, token):
            self.parser.parseError("expected-eof-but-got-char")
            self.parser.phase = self.parser.phases["inBody"]
            return token

        def startTagHtml(self, token):
            return self.parser.phases["inBody"].processStartTag(token)

        def startTagOther(self, token):
            self.parser.parseError("expected-eof-but-got-start-tag",
                                   {"name": token["name"]})
            self.parser.phase = self.parser.phases["inBody"]
            return token

        def processEndTag(self, token):
            self.parser.parseError("expected-eof-but-got-end-tag",
                                   {"name": token["name"]})
            self.parser.phase = self.parser.phases["inBody"]
            return token

        startTagHandler = _utils.MethodDispatcher([
            ("html", startTagHtml)
        ])
        startTagHandler.default = startTagOther

    class AfterAfterFramesetPhase(Phase):
        __slots__ = tuple()

        def processEOF(self):
            pass

        def processComment(self, token):
            self.tree.insertComment(token, self.tree.document)

        def processSpaceCharacters(self, token):
            return self.parser.phases["inBody"].processSpaceCharacters(token)

        def processCharacters(self, token):
            self.parser.parseError("expected-eof-but-got-char")

        def startTagHtml(self, token):
            return self.parser.phases["inBody"].processStartTag(token)

        def startTagNoFrames(self, token):
            return self.parser.phases["inHead"].processStartTag(token)

        def startTagOther(self, token):
            self.parser.parseError("expected-eof-but-got-start-tag",
                                   {"name": token["name"]})

        def processEndTag(self, token):
            self.parser.parseError("expected-eof-but-got-end-tag",
                                   {"name": token["name"]})

        startTagHandler = _utils.MethodDispatcher([
            ("html", startTagHtml),
            ("noframes", startTagNoFrames)
        ])
        startTagHandler.default = startTagOther

    # pylint:enable=unused-argument

    return {
        "initial": InitialPhase,
        "beforeHtml": BeforeHtmlPhase,
        "beforeHead": BeforeHeadPhase,
        "inHead": InHeadPhase,
        "inHeadNoscript": InHeadNoscriptPhase,
        "afterHead": AfterHeadPhase,
        "inBody": InBodyPhase,
        "text": TextPhase,
        "inTable": InTablePhase,
        "inTableText": InTableTextPhase,
        "inCaption": InCaptionPhase,
        "inColumnGroup": InColumnGroupPhase,
        "inTableBody": InTableBodyPhase,
        "inRow": InRowPhase,
        "inCell": InCellPhase,
        "inSelect": InSelectPhase,
        "inSelectInTable": InSelectInTablePhase,
        "inForeignContent": InForeignContentPhase,
        "afterBody": AfterBodyPhase,
        "inFrameset": InFramesetPhase,
        "afterFrameset": AfterFramesetPhase,
        "afterAfterBody": AfterAfterBodyPhase,
        "afterAfterFrameset": AfterAfterFramesetPhase,
        # XXX after after frameset
    }


def adjust_attributes(token, replacements):
    needs_adjustment = viewkeys(token['data']) & viewkeys(replacements)
    if needs_adjustment:
        token['data'] = type(token['data'])((replacements.get(k, k), v)
                                            for k, v in token['data'].items())


def impliedTagToken(name, type="EndTag", attributes=None,
                    selfClosing=False):
    if attributes is None:
        attributes = {}
    return {"type": tokenTypes[type], "name": name, "data": attributes,
            "selfClosing": selfClosing}


class ParseError(Exception):
    """Error in parsed document"""
    pass