alpcentaur
/
basabuuka_prototyp

from __future__ import absolute_import, division, unicode_literalsfrom six import with_metaclass
import types
from . import inputstreamfrom . import tokenizer
from . import treebuildersfrom .treebuilders._base import Marker
from . import utilsfrom . import constantsfrom .constants import spaceCharacters, asciiUpper2Lowerfrom .constants import specialElementsfrom .constants import headingElementsfrom .constants import cdataElements, rcdataElementsfrom .constants import tokenTypes, ReparseException, namespacesfrom .constants import htmlIntegrationPointElements, mathmlTextIntegrationPointElementsfrom .constants import adjustForeignAttributes as adjustForeignAttributesMapfrom .constants import E

def parse(doc, treebuilder="etree", encoding=None,          namespaceHTMLElements=True):    """Parse a string or file-like object into a tree"""    tb = treebuilders.getTreeBuilder(treebuilder)    p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements)    return p.parse(doc, encoding=encoding)

def parseFragment(doc, container="div", treebuilder="etree", encoding=None,                  namespaceHTMLElements=True):    tb = treebuilders.getTreeBuilder(treebuilder)    p = HTMLParser(tb, namespaceHTMLElements=namespaceHTMLElements)    return p.parseFragment(doc, container=container, encoding=encoding)

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, tokenizer=tokenizer.HTMLTokenizer,                 strict=False, namespaceHTMLElements=True, debug=False):        """
        strict - raise an exception when a parse error is encountered
        tree - a treebuilder class controlling the type of tree that will be        returned. Built in treebuilders can be accessed through        html5lib.treebuilders.getTreeBuilder(treeType)
        tokenizer - a class that provides a stream of tokens to the treebuilder.        This may be replaced for e.g. a sanitizer which converts some tags to        text        """

        # Raise an exception on the first error encountered        self.strict = strict
        if tree is None:            tree = treebuilders.getTreeBuilder("etree")        self.tree = tree(namespaceHTMLElements)        self.tokenizer_class = tokenizer        self.errors = []
        self.phases = dict([(name, cls(self, self.tree)) for name, cls in                            getPhases(debug).items()])
    def _parse(self, stream, innerHTML=False, container="div",               encoding=None, parseMeta=True, useChardet=True, **kwargs):
        self.innerHTMLMode = innerHTML        self.container = container        self.tokenizer = self.tokenizer_class(stream, encoding=encoding,                                              parseMeta=parseMeta,                                              useChardet=useChardet,                                              parser=self, **kwargs)        self.reset()
        while True:            try:                self.mainLoop()                break            except ReparseException:                self.reset()
    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            self.phase = self.phases["initial"]
        self.lastPhase = None
        self.beforeRCDataPhase = None
        self.framesetOK = True
    @property    def documentEncoding(self):        """The 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]
    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.normalizedTokens():            new_token = token            while new_token is not None:                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                         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 token["selfClosing"]                    and not token["selfClosingAcknowledged"]):                self.parseError("non-void-element-with-trailing-solidus",                                {"name": 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 normalizedTokens(self):        for token in self.tokenizer:            yield self.normalizeToken(token)
    def parse(self, stream, encoding=None, parseMeta=True, useChardet=True):        """Parse a HTML document into a well-formed tree

        stream - a filelike 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)        """
        self._parse(stream, innerHTML=False, encoding=encoding,                    parseMeta=parseMeta, useChardet=useChardet)        return self.tree.getDocument()
    def parseFragment(self, stream, container="div", encoding=None,                      parseMeta=False, useChardet=True):        """Parse a HTML fragment into a well-formed tree fragment

        container - name of the element we're setting the innerHTML property        if set to None, default to 'div'
        stream - a filelike 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)        """
        self._parse(stream, True, container=container, encoding=encoding)        return self.tree.getFragment()
    def parseError(self, errorcode="XXX-undefined-error", datavars={}):        # XXX The idea is to make errorcode mandatory.        self.errors.append((self.tokenizer.stream.position(), errorcode, datavars))        if self.strict:            raise ParseError(E[errorcode] % datavars)
    def normalizeToken(self, token):        """ HTML5 specific normalizations to the token stream """
        if token["type"] == tokenTypes["StartTag"]:            token["data"] = dict(token["data"][::-1])
        return token
    def adjustMathMLAttributes(self, token):        replacements = {"definitionurl": "definitionURL"}        for k, v in replacements.items():            if k in token["data"]:                token["data"][v] = token["data"][k]                del token["data"][k]
    def adjustSVGAttributes(self, token):        replacements = {            "attributename": "attributeName",            "attributetype": "attributeType",            "basefrequency": "baseFrequency",            "baseprofile": "baseProfile",            "calcmode": "calcMode",            "clippathunits": "clipPathUnits",            "contentscripttype": "contentScriptType",            "contentstyletype": "contentStyleType",            "diffuseconstant": "diffuseConstant",            "edgemode": "edgeMode",            "externalresourcesrequired": "externalResourcesRequired",            "filterres": "filterRes",            "filterunits": "filterUnits",            "glyphref": "glyphRef",            "gradienttransform": "gradientTransform",            "gradientunits": "gradientUnits",            "kernelmatrix": "kernelMatrix",            "kernelunitlength": "kernelUnitLength",            "keypoints": "keyPoints",            "keysplines": "keySplines",            "keytimes": "keyTimes",            "lengthadjust": "lengthAdjust",            "limitingconeangle": "limitingConeAngle",            "markerheight": "markerHeight",            "markerunits": "markerUnits",            "markerwidth": "markerWidth",            "maskcontentunits": "maskContentUnits",            "maskunits": "maskUnits",            "numoctaves": "numOctaves",            "pathlength": "pathLength",            "patterncontentunits": "patternContentUnits",            "patterntransform": "patternTransform",            "patternunits": "patternUnits",            "pointsatx": "pointsAtX",            "pointsaty": "pointsAtY",            "pointsatz": "pointsAtZ",            "preservealpha": "preserveAlpha",            "preserveaspectratio": "preserveAspectRatio",            "primitiveunits": "primitiveUnits",            "refx": "refX",            "refy": "refY",            "repeatcount": "repeatCount",            "repeatdur": "repeatDur",            "requiredextensions": "requiredExtensions",            "requiredfeatures": "requiredFeatures",            "specularconstant": "specularConstant",            "specularexponent": "specularExponent",            "spreadmethod": "spreadMethod",            "startoffset": "startOffset",            "stddeviation": "stdDeviation",            "stitchtiles": "stitchTiles",            "surfacescale": "surfaceScale",            "systemlanguage": "systemLanguage",            "tablevalues": "tableValues",            "targetx": "targetX",            "targety": "targetY",            "textlength": "textLength",            "viewbox": "viewBox",            "viewtarget": "viewTarget",            "xchannelselector": "xChannelSelector",            "ychannelselector": "yChannelSelector",            "zoomandpan": "zoomAndPan"        }        for originalName in list(token["data"].keys()):            if originalName in replacements:                svgName = replacements[originalName]                token["data"][svgName] = token["data"][originalName]                del token["data"][originalName]
    def adjustForeignAttributes(self, token):        replacements = adjustForeignAttributesMap
        for originalName in token["data"].keys():            if originalName in replacements:                foreignName = replacements[originalName]                token["data"][foreignName] = token["data"][originalName]                del token["data"][originalName]
    def reparseTokenNormal(self, token):        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
        contentType - RCDATA or RAWTEXT        """
        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"]

def getPhases(debug):    def log(function):        """Logger that records which phase processes each token"""        type_names = dict((value, key) for key, value in                          constants.tokenTypes.items())
        def wrapped(self, *args, **kwargs):            if function.__name__.startswith("process") and len(args) > 0:                token = args[0]                try:                    info = {"type": type_names[token['type']]}                except:                    raise                if token['type'] in constants.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
    class Phase(with_metaclass(getMetaclass(debug, log))):        """Base class for helper object that implements each phase of processing
        """

        def __init__(self, parser, tree):            self.parser = parser            self.tree = tree
        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):            return self.startTagHandler[token["name"]](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):            return self.endTagHandler[token["name"]](token)
    class InitialPhase(Phase):        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):        # 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):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("head", self.startTagHead)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                (("head", "body", "html", "br"), self.endTagImplyHead)            ])            self.endTagHandler.default = self.endTagOther
        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"]})
    class InHeadPhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("title", self.startTagTitle),                (("noscript", "noframes", "style"), self.startTagNoScriptNoFramesStyle),                ("script", self.startTagScript),                (("base", "basefont", "bgsound", "command", "link"),                 self.startTagBaseLinkCommand),                ("meta", self.startTagMeta),                ("head", self.startTagHead)            ])            self.startTagHandler.default = self.startTagOther
            self. endTagHandler = utils.MethodDispatcher([                ("head", self.endTagHead),                (("br", "html", "body"), self.endTagHtmlBodyBr)            ])            self.endTagHandler.default = self.endTagOther
        # 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 startTagNoScriptNoFramesStyle(self, token):            # Need to decide whether to implement the scripting-disabled case            self.parser.parseRCDataRawtext(token, "RAWTEXT")
        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"))
    # XXX If we implement a parser for which scripting is disabled we need to    # implement this phase.    #    # class InHeadNoScriptPhase(Phase):    class AfterHeadPhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("body", self.startTagBody),                ("frameset", self.startTagFrameset),                (("base", "basefont", "bgsound", "link", "meta", "noframes", "script",                  "style", "title"),                 self.startTagFromHead),                ("head", self.startTagHead)            ])            self.startTagHandler.default = self.startTagOther            self.endTagHandler = utils.MethodDispatcher([(("body", "html", "br"),                                                          self.endTagHtmlBodyBr)])            self.endTagHandler.default = self.endTagOther
        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
    class InBodyPhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#parsing-main-inbody        # the really-really-really-very crazy mode        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            # Keep a ref to this for special handling of whitespace in <pre>            self.processSpaceCharactersNonPre = self.processSpaceCharacters
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                (("base", "basefont", "bgsound", "command", "link", "meta",                  "script", "style", "title"),                 self.startTagProcessInHead),                ("body", self.startTagBody),                ("frameset", self.startTagFrameset),                (("address", "article", "aside", "blockquote", "center", "details",                  "details", "dir", "div", "dl", "fieldset", "figcaption", "figure",                  "footer", "header", "hgroup", "main", "menu", "nav", "ol", "p",                  "section", "summary", "ul"),                 self.startTagCloseP),                (headingElements, self.startTagHeading),                (("pre", "listing"), self.startTagPreListing),                ("form", self.startTagForm),                (("li", "dd", "dt"), self.startTagListItem),                ("plaintext", self.startTagPlaintext),                ("a", self.startTagA),                (("b", "big", "code", "em", "font", "i", "s", "small", "strike",                  "strong", "tt", "u"), self.startTagFormatting),                ("nobr", self.startTagNobr),                ("button", self.startTagButton),                (("applet", "marquee", "object"), self.startTagAppletMarqueeObject),                ("xmp", self.startTagXmp),                ("table", self.startTagTable),                (("area", "br", "embed", "img", "keygen", "wbr"),                 self.startTagVoidFormatting),                (("param", "source", "track"), self.startTagParamSource),                ("input", self.startTagInput),                ("hr", self.startTagHr),                ("image", self.startTagImage),                ("isindex", self.startTagIsIndex),                ("textarea", self.startTagTextarea),                ("iframe", self.startTagIFrame),                (("noembed", "noframes", "noscript"), self.startTagRawtext),                ("select", self.startTagSelect),                (("rp", "rt"), self.startTagRpRt),                (("option", "optgroup"), self.startTagOpt),                (("math"), self.startTagMath),                (("svg"), self.startTagSvg),                (("caption", "col", "colgroup", "frame", "head",                  "tbody", "td", "tfoot", "th", "thead",                  "tr"), self.startTagMisplaced)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("body", self.endTagBody),                ("html", self.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"), self.endTagBlock),                ("form", self.endTagForm),                ("p", self.endTagP),                (("dd", "dt", "li"), self.endTagListItem),                (headingElements, self.endTagHeading),                (("a", "b", "big", "code", "em", "font", "i", "nobr", "s", "small",                  "strike", "strong", "tt", "u"), self.endTagFormatting),                (("applet", "marquee", "object"), self.endTagAppletMarqueeObject),                ("br", self.endTagBr),            ])            self.endTagHandler.default = self.endTagOther
        def isMatchingFormattingElement(self, node1, node2):            if node1.name != node2.name or node1.namespace != node2.namespace:                return False            elif len(node1.attributes) != len(node2.attributes):                return False            else:                attributes1 = sorted(node1.attributes.items())                attributes2 = sorted(node2.attributes.items())                for attr1, attr2 in zip(attributes1, attributes2):                    if attr1 != attr2:                        return False            return True
        # 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 <pre>, <listing>, and <textarea> 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 processSpaceCharacters(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 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",                            {"expectedName": "body", "gotName": 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
    class TextPhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)            self.startTagHandler = utils.MethodDispatcher([])            self.startTagHandler.default = self.startTagOther            self.endTagHandler = utils.MethodDispatcher([                ("script", self.endTagScript)])            self.endTagHandler.default = self.endTagOther
        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
    class InTablePhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#in-table        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("caption", self.startTagCaption),                ("colgroup", self.startTagColgroup),                ("col", self.startTagCol),                (("tbody", "tfoot", "thead"), self.startTagRowGroup),                (("td", "th", "tr"), self.startTagImplyTbody),                ("table", self.startTagTable),                (("style", "script"), self.startTagStyleScript),                ("input", self.startTagInput),                ("form", self.startTagForm)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("table", self.endTagTable),                (("body", "caption", "col", "colgroup", "html", "tbody", "td",                  "tfoot", "th", "thead", "tr"), self.endTagIgnore)            ])            self.endTagHandler.default = self.endTagOther
        # 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
    class InTableTextPhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)            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        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",                  "thead", "tr"), self.startTagTableElement)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("caption", self.endTagCaption),                ("table", self.endTagTable),                (("body", "col", "colgroup", "html", "tbody", "td", "tfoot", "th",                  "thead", "tr"), self.endTagIgnore)            ])            self.endTagHandler.default = self.endTagOther
        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)
    class InColumnGroupPhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#in-column
        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("col", self.startTagCol)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("colgroup", self.endTagColgroup),                ("col", self.endTagCol)            ])            self.endTagHandler.default = self.endTagOther
        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()
        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
    class InTableBodyPhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#in-table0        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("tr", self.startTagTr),                (("td", "th"), self.startTagTableCell),                (("caption", "col", "colgroup", "tbody", "tfoot", "thead"),                 self.startTagTableOther)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                (("tbody", "tfoot", "thead"), self.endTagTableRowGroup),                ("table", self.endTagTable),                (("body", "caption", "col", "colgroup", "html", "td", "th",                  "tr"), self.endTagIgnore)            ])            self.endTagHandler.default = self.endTagOther
        # 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)
    class InRowPhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#in-row        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                (("td", "th"), self.startTagTableCell),                (("caption", "col", "colgroup", "tbody", "tfoot", "thead",                  "tr"), self.startTagTableOther)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("tr", self.endTagTr),                ("table", self.endTagTable),                (("tbody", "tfoot", "thead"), self.endTagTableRowGroup),                (("body", "caption", "col", "colgroup", "html", "td", "th"),                 self.endTagIgnore)            ])            self.endTagHandler.default = self.endTagOther
        # 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)
    class InCellPhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#in-cell        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                (("caption", "col", "colgroup", "tbody", "td", "tfoot", "th",                  "thead", "tr"), self.startTagTableOther)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                (("td", "th"), self.endTagTableCell),                (("body", "caption", "col", "colgroup", "html"), self.endTagIgnore),                (("table", "tbody", "tfoot", "thead", "tr"), self.endTagImply)            ])            self.endTagHandler.default = self.endTagOther
        # 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)
    class InSelectPhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("option", self.startTagOption),                ("optgroup", self.startTagOptgroup),                ("select", self.startTagSelect),                (("input", "keygen", "textarea"), self.startTagInput),                ("script", self.startTagScript)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("option", self.endTagOption),                ("optgroup", self.endTagOptgroup),                ("select", self.endTagSelect)            ])            self.endTagHandler.default = self.endTagOther
        # 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"]})
    class InSelectInTablePhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),                 self.startTagTable)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                (("caption", "table", "tbody", "tfoot", "thead", "tr", "td", "th"),                 self.endTagTable)            ])            self.endTagHandler.default = self.endTagOther
        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)
    class InForeignContentPhase(Phase):        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 __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
        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()) & set(["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 != 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):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([("html", self.endTagHtml)])            self.endTagHandler.default = self.endTagOther
        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
    class InFramesetPhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#in-frameset        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("frameset", self.startTagFrameset),                ("frame", self.startTagFrame),                ("noframes", self.startTagNoframes)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("frameset", self.endTagFrameset)            ])            self.endTagHandler.default = self.endTagOther
        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 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"]})
    class AfterFramesetPhase(Phase):        # http://www.whatwg.org/specs/web-apps/current-work/#after3        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("noframes", self.startTagNoframes)            ])            self.startTagHandler.default = self.startTagOther
            self.endTagHandler = utils.MethodDispatcher([                ("html", self.endTagHtml)            ])            self.endTagHandler.default = self.endTagOther
        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"]})
    class AfterAfterBodyPhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml)            ])            self.startTagHandler.default = self.startTagOther
        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
    class AfterAfterFramesetPhase(Phase):        def __init__(self, parser, tree):            Phase.__init__(self, parser, tree)
            self.startTagHandler = utils.MethodDispatcher([                ("html", self.startTagHtml),                ("noframes", self.startTagNoFrames)            ])            self.startTagHandler.default = self.startTagOther
        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"]})
    return {        "initial": InitialPhase,        "beforeHtml": BeforeHtmlPhase,        "beforeHead": BeforeHeadPhase,        "inHead": InHeadPhase,        # XXX "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 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