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html5lib-python/src/html5lib/html5parser.py at python3-old · paradoxxxzero/html5lib-python · GitHub
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import
sys
from
.
import
inputstream
from
.
import
tokenizer
from
.
import
treebuilders
from
.
treebuilders
.
_base
import
Marker
from
.
treebuilders
import
simpletree
from
.
import
utils
from
.
constants
import
contentModelFlags
,
spaceCharacters
,
asciiUpper2Lower
from
.
constants
import
scopingElements
,
formattingElements
,
specialElements
from
.
constants
import
headingElements
,
tableInsertModeElements
from
.
constants
import
cdataElements
,
rcdataElements
,
voidElements
from
.
constants
import
tokenTypes
def
parse
(
doc
,
treebuilderName
=
"simpletree"
,
encoding
=
None
,
implementation
=
None
):
tb
=
treebuilders
.
getTreeBuilder
(
treebuilderName
,
implementation
=
implementation
)
p
=
HTMLParser
(
tb
)
return
p
.
parse
(
doc
,
encoding
=
encoding
)
class
HTMLParser
(
object
):
"""HTML parser. Generates a tree structure from a stream of (possibly
malformed) HTML"""
def
__init__
(
self
,
tree
=
simpletree
.
TreeBuilder
,
tokenizer
=
tokenizer
.
HTMLTokenizer
,
strict
=
False
,
namespaceHTMLElements
=
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
self
.
tree
=
tree
(
namespaceHTMLElements
)
self
.
tokenizer_class
=
tokenizer
self
.
errors
=
[]
self
.
phases
=
{
"initial"
:
InitialPhase
(
self
,
self
.
tree
),
"beforeHtml"
:
BeforeHtmlPhase
(
self
,
self
.
tree
),
"beforeHead"
:
BeforeHeadPhase
(
self
,
self
.
tree
),
"inHead"
:
InHeadPhase
(
self
,
self
.
tree
),
# XXX "inHeadNoscript": InHeadNoScriptPhase(self, self.tree),
"afterHead"
:
AfterHeadPhase
(
self
,
self
.
tree
),
"inBody"
:
InBodyPhase
(
self
,
self
.
tree
),
"inCDataRCData"
:
InCDataRCDataPhase
(
self
,
self
.
tree
),
"inTable"
:
InTablePhase
(
self
,
self
.
tree
),
"inCaption"
:
InCaptionPhase
(
self
,
self
.
tree
),
"inColumnGroup"
:
InColumnGroupPhase
(
self
,
self
.
tree
),
"inTableBody"
:
InTableBodyPhase
(
self
,
self
.
tree
),
"inRow"
:
InRowPhase
(
self
,
self
.
tree
),
"inCell"
:
InCellPhase
(
self
,
self
.
tree
),
"inSelect"
:
InSelectPhase
(
self
,
self
.
tree
),
"inSelectInTable"
:
InSelectInTablePhase
(
self
,
self
.
tree
),
"afterBody"
:
AfterBodyPhase
(
self
,
self
.
tree
),
"inFrameset"
:
InFramesetPhase
(
self
,
self
.
tree
),
"afterFrameset"
:
AfterFramesetPhase
(
self
,
self
.
tree
),
"afterAfterBody"
:
AfterAfterBodyPhase
(
self
,
self
.
tree
),
"afterAfterFrameset"
:
AfterAfterFramesetPhase
(
self
,
self
.
tree
),
# XXX after after frameset
}
def
_parse
(
self
,
stream
,
innerHTML
=
False
,
container
=
"div"
,
encoding
=
None
,
parseMeta
=
True
,
useChardet
=
True
,
**
kwargs
):
self
.
tree
.
reset
()
self
.
firstStartTag
=
False
self
.
errors
=
[]
# "quirks" / "limited quirks" / "no quirks"
self
.
compatMode
=
"no quirks"
self
.
tokenizer
=
self
.
tokenizer_class
(
stream
,
encoding
=
encoding
,
parseMeta
=
parseMeta
,
useChardet
=
useChardet
,
**
kwargs
)
if
innerHTML
:
self
.
innerHTML
=
container
.
lower
()
if
self
.
innerHTML
in
cdataElements
:
self
.
tokenizer
.
contentModelFlag
=
tokenizer
.
contentModelFlags
[
"RCDATA"
]
elif
self
.
innerHTML
in
rcdataElements
:
self
.
tokenizer
.
contentModelFlag
=
tokenizer
.
contentModelFlags
[
"CDATA"
]
elif
self
.
innerHTML
==
'plaintext'
:
self
.
tokenizer
.
contentModelFlag
=
tokenizer
.
contentModelFlags
[
"PLAINTEXT"
]
else
:
# contentModelFlag already is PCDATA
#self.tokenizer.contentModelFlag = tokenizer.contentModelFlags["PCDATA"]
pass
self
.
phase
=
self
.
phases
[
"beforeHtml"
]
self
.
phase
.
insertHtmlElement
()
self
.
resetInsertionMode
()
else
:
self
.
innerHTML
=
False
self
.
phase
=
self
.
phases
[
"initial"
]
# We only seem to have InBodyPhase testcases where the following is
# relevant ... need others too
self
.
lastPhase
=
None
self
.
beforeRCDataPhase
=
None
CharactersToken
=
tokenTypes
[
"Characters"
]
SpaceCharactersToken
=
tokenTypes
[
"SpaceCharacters"
]
StartTagToken
=
tokenTypes
[
"StartTag"
]
EndTagToken
=
tokenTypes
[
"EndTag"
]
CommentToken
=
tokenTypes
[
"Comment"
]
DoctypeToken
=
tokenTypes
[
"Doctype"
]
for
token
in
self
.
normalizedTokens
():
#print self.phase.__class__.__name__
#print token
type
=
token
[
"type"
]
if
type
==
CharactersToken
:
self
.
phase
.
processCharacters
(
token
)
elif
type
==
SpaceCharactersToken
:
self
.
phase
.
processSpaceCharacters
(
token
)
elif
type
==
StartTagToken
:
self
.
selfClosingAcknowledged
=
False
self
.
phase
.
processStartTag
(
token
)
if
(
token
[
"selfClosing"
]
and
not
self
.
selfClosingAcknowledged
):
self
.
parseError
(
"non-void-element-with-trailing-soldius"
,
{
"name"
:
token
[
"name"
]})
elif
type
==
EndTagToken
:
self
.
phase
.
processEndTag
(
token
)
elif
type
==
CommentToken
:
self
.
phase
.
processComment
(
token
)
elif
type
==
DoctypeToken
:
self
.
phase
.
processDoctype
(
token
)
else
:
self
.
parseError
(
token
[
"data"
],
token
.
get
(
"datavars"
, {}))
# When the loop finishes it's EOF
self
.
phase
.
processEOF
()
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
)
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
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
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"
}
for
node
in
self
.
tree
.
openElements
[::
-
1
]:
nodeName
=
node
.
name
if
node
==
self
.
tree
.
openElements
[
0
]:
last
=
True
if
nodeName
not
in
[
'td'
,
'th'
]:
# XXX
assert
self
.
innerHTML
nodeName
=
self
.
innerHTML
# Check for conditions that should only happen in the innerHTML
# case
if
nodeName
in
(
"select"
,
"colgroup"
,
"head"
,
"frameset"
):
# XXX
assert
self
.
innerHTML
if
nodeName
in
newModes
:
self
.
phase
=
self
.
phases
[
newModes
[
nodeName
]]
break
elif
nodeName
==
"html"
:
if
self
.
tree
.
headPointer
is
None
:
self
.
phase
=
self
.
phases
[
"beforeHead"
]
else
:
self
.
phase
=
self
.
phases
[
"afterHead"
]
break
elif
last
:
self
.
phase
=
self
.
phases
[
"inBody"
]
break
def
parseRCDataCData
(
self
,
token
,
contentType
):
"""Generic (R)CDATA Parsing algorithm
contentType - RCDATA or CDATA
"""
assert
contentType
in
(
"CDATA"
,
"RCDATA"
)
element
=
self
.
tree
.
insertElement
(
token
)
self
.
tokenizer
.
contentModelFlag
=
contentModelFlags
[
contentType
]
self
.
originalPhase
=
self
.
phase
self
.
phase
=
self
.
phases
[
"inCDataRCData"
]
class
Phase
(
object
):
"""Base class for helper object that implements each phase of processing
"""
# Order should be (they can be omitted):
# * EOF
# * Comment
# * Doctype
# * SpaceCharacters
# * Characters
# * StartTag
# - startTag* methods
# * EndTag
# - endTag* methods
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
processSpaceCharacters
(
self
,
token
):
self
.
tree
.
insertText
(
token
[
"data"
])
def
processStartTag
(
self
,
token
):
self
.
startTagHandler
[
token
[
"name"
]](
token
)
def
startTagHtml
(
self
,
token
):
if
self
.
parser
.
firstStartTag
==
False
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
):
self
.
endTagHandler
[
token
[
"name"
]](
token
)
class
InitialPhase
(
Phase
):
# This phase deals with error handling as well which is currently not
# covered in the specification. The error handling is typically known as
# "quirks mode". It is expected that a future version of HTML5 will defin
# this.
def
processEOF
(
self
):
self
.
parser
.
parseError
(
"expected-doctype-but-got-eof"
)
self
.
parser
.
compatMode
=
"quirks"
self
.
parser
.
phase
=
self
.
parser
.
phases
[
"beforeHtml"
]
self
.
parser
.
phase
.
processEOF
()
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
!=
None
or
systemId
!=
None
):
self
.
parser
.
parseError
(
"unknown-doctype"
)
if
publicId
is
None
:
publicId
=
""
if
systemId
is
None
:
systemId
=
""
self
.
tree
.
insertDoctype
(
token
)
if
publicId
!=
""
:
publicId
=
publicId
.
translate
(
asciiUpper2Lower
)
if
((
not
correct
)
or
token
[
"name"
]
!=
"html"
or
publicId
in
(
"+//silmaril//dtd html pro v0r11 19970101//en"
,
"-//advasoft ltd//dtd html 3.0 aswedit + extensions//en"
,
"-//as//dtd html 3.0 aswedit + extensions//en"
,
"-//ietf//dtd html 2.0 level 1//en"
,
"-//ietf//dtd html 2.0 level 2//en"
,
"-//ietf//dtd html 2.0 strict level 1//en"
,
"-//ietf//dtd html 2.0 strict level 2//en"
,
"-//ietf//dtd html 2.0 strict//en"
,
"-//ietf//dtd html 2.0//en"
,
"-//ietf//dtd html 2.1e//en"
,
"-//ietf//dtd html 3.0//en"
,
"-//ietf//dtd html 3.0//en//"
,
"-//ietf//dtd html 3.2 final//en"
,
"-//ietf//dtd html 3.2//en"
,
"-//ietf//dtd html 3//en"
,
"-//ietf//dtd html level 0//en"
,
"-//ietf//dtd html level 0//en//2.0"
,
"-//ietf//dtd html level 1//en"
,
"-//ietf//dtd html level 1//en//2.0"
,
"-//ietf//dtd html level 2//en"
,
"-//ietf//dtd html level 2//en//2.0"
,
"-//ietf//dtd html level 3//en"
,
"-//ietf//dtd html level 3//en//3.0"
,
"-//ietf//dtd html strict level 0//en"
,
"-//ietf//dtd html strict level 0//en//2.0"
,
"-//ietf//dtd html strict level 1//en"
,
"-//ietf//dtd html strict level 1//en//2.0"
,
"-//ietf//dtd html strict level 2//en"
,
"-//ietf//dtd html strict level 2//en//2.0"
,
"-//ietf//dtd html strict level 3//en"
,
"-//ietf//dtd html strict level 3//en//3.0"
,
"-//ietf//dtd html strict//en"
,
"-//ietf//dtd html strict//en//2.0"
,
"-//ietf//dtd html strict//en//3.0"
,
"-//ietf//dtd html//en"
,
"-//ietf//dtd html//en//2.0"
,
"-//ietf//dtd html//en//3.0"
,
"-//metrius//dtd metrius presentational//en"
,
"-//microsoft//dtd internet explorer 2.0 html strict//en"
,
"-//microsoft//dtd internet explorer 2.0 html//en"
,
"-//microsoft//dtd internet explorer 2.0 tables//en"
,
"-//microsoft//dtd internet explorer 3.0 html strict//en"
,
"-//microsoft//dtd internet explorer 3.0 html//en"
,
"-//microsoft//dtd internet explorer 3.0 tables//en"
,
"-//netscape comm. corp.//dtd html//en"
,
"-//netscape comm. corp.//dtd strict html//en"
,
"-//o'reilly and associates//dtd html 2.0//en"
,
"-//o'reilly and associates//dtd html extended 1.0//en"
,
"-//o'reilly and associates//dtd html extended relaxed 1.0//en"
,
"-//spyglass//dtd html 2.0 extended//en"
,
"-//sq//dtd html 2.0 hotmetal + extensions//en"
,
"-//sun microsystems corp.//dtd hotjava html//en"
,
"-//sun microsystems corp.//dtd hotjava strict html//en"
,
"-//w3c//dtd html 3 1995-03-24//en"
,
"-//w3c//dtd html 3.2 draft//en"
,
"-//w3c//dtd html 3.2 final//en"
,
"-//w3c//dtd html 3.2//en"
,
"-//w3c//dtd html 3.2s draft//en"
,
"-//w3c//dtd html 4.0 frameset//en"
,
"-//w3c//dtd html 4.0 transitional//en"
,
"-//w3c//dtd html experimental 19960712//en"
,
"-//w3c//dtd html experimental 970421//en"
,
"-//w3c//dtd w3 html//en"
,
"-//w3o//dtd w3 html 3.0//en"
,
"-//w3o//dtd w3 html 3.0//en//"
,
"-//w3o//dtd w3 html strict 3.0//en//"
,
"-//webtechs//dtd mozilla html 2.0//en"
,
"-//webtechs//dtd mozilla html//en"
,
"-/w3c/dtd html 4.0 transitional/en"
,
"html"
)
or
(
publicId
in
(
"-//w3c//dtd html 4.01 frameset//EN"
,
"-//w3c//dtd html 4.01 transitional//EN"
)
and
systemId
==
None
)
or
(
systemId
!=
None
and
systemId
==
"http://www.ibm.com/data/dtd/v11/ibmxhtml1-transitional.dtd"
)):
self
.
parser
.
compatMode
=
"quirks"
elif
(
publicId
in
(
"-//w3c//dtd xhtml 1.0 frameset//EN"
,
"-//w3c//dtd xhtml 1.0 transitional//EN"
)
or
(
publicId
in
(
"-//w3c//dtd html 4.01 frameset//EN"
,
"-//w3c//dtd html 4.01 transitional//EN"
)
and
systemId
==
None
)):
self
.
parser
.
compatMode
=
"limited quirks"
self
.
parser
.
phase
=
self
.
parser
.
phases
[
"beforeHtml"
]
def
processSpaceCharacters
(
self
,
token
):
pass
def
processCharacters
(
self
,
token
):
self
.
parser
.
parseError
(
"expected-doctype-but-got-chars"
)
self
.
parser
.
compatMode
=
"quirks"
self
.
parser
.
phase
=
self
.
parser
.
phases
[
"beforeHtml"
]
self
.
parser
.
phase
.
processCharacters
(
token
)
def
processStartTag
(
self
,
token
):
self
.
parser
.
parseError
(
"expected-doctype-but-got-start-tag"
,
{
"name"
:
token
[
"name"
]})
self
.
compatMode
=
"quirks"
self
.
parser
.
phase
=
self
.
parser
.
phases
[
"beforeHtml"
]
self
.
parser
.
phase
.
processStartTag
(
token
)
def
processEndTag
(
self
,
token
):
self
.
parser
.
parseError
(
"expected-doctype-but-got-end-tag"
,
{
"name"
:
token
[
"name"
]})
self
.
compatMode
=
"quirks"
self
.
parser
.
phase
=
self
.
parser
.
phases
[
"beforeHtml"
]
self
.
parser
.
phase
.
processEndTag
(
token
)
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
()
self
.
parser
.
phase
.
processEOF
()
def
processComment
(
self
,
token
):
self
.
tree
.
insertComment
(
token
,
self
.
tree
.
document
)
def
processSpaceCharacters
(
self
,
token
):
pass
def
processCharacters
(
self
,
token
):
self
.
insertHtmlElement
()
self
.
parser
.
phase
.
processCharacters
(
token
)
def
processStartTag
(
self
,
token
):
if
token
[
"name"
]
==
"html"
:
self
.
parser
.
firstStartTag
=
True
self
.
insertHtmlElement
()
self
.
parser
.
phase
.
processStartTag
(
token
)
def
processEndTag
(
self
,
token
):
self
.
insertHtmlElement
()
self
.
parser
.
phase
.
processEndTag
(
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"
,
"br"
),
self
.
endTagImplyHead
)
])
self
.
endTagHandler
.
default
=
self
.
endTagOther
def
processEOF
(
self
):
self
.
startTagHead
(
impliedTagToken
(
"head"
,
"StartTag"
))
self
.
parser
.
phase
.
processEOF
()
def
processSpaceCharacters
(
self
,
token
):
pass
def
processCharacters
(
self
,
token
):
self
.
startTagHead
(
impliedTagToken
(
"head"
,
"StartTag"
))
self
.
parser
.
phase
.
processCharacters
(
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"
))
self
.
parser
.
phase
.
processStartTag
(
token
)
def
endTagImplyHead
(
self
,
token
):
self
.
startTagHead
(
impliedTagToken
(
"head"
,
"StartTag"
))
self
.
parser
.
phase
.
processEndTag
(
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"
,
"link"
,
"command"
,
"eventsource"
),
self
.
startTagBaseLinkCommandEventsource
),
(
"meta"
,
self
.
startTagMeta
),
(
"head"
,
self
.
startTagHead
)
])
self
.
startTagHandler
.
default
=
self
.
startTagOther
self
.
endTagHandler
=
utils
.
MethodDispatcher
([
(
"head"
,
self
.
endTagHead
),
(
"br"
,
self
.
endTagBr
)
])
self
.
endTagHandler
.
default
=
self
.
endTagOther
# helper
def
appendToHead
(
self
,
element
):
if
self
.
tree
.
headPointer
is
not
None
:
self
.
tree
.
headPointer
.
appendChild
(
element
)
else
:
assert
self
.
parser
.
innerHTML
self
.
tree
.
openElementsw
[
-
1
].
appendChild
(
element
)
# the real thing
def
processEOF
(
self
):
self
.
anythingElse
()
self
.
parser
.
phase
.
processEOF
()
def
processCharacters
(
self
,
token
):
self
.
anythingElse
()
self
.
parser
.
phase
.
processCharacters
(
token
)
def
startTagHtml
(
self
,
token
):
self
.
parser
.
phases
[
"inBody"
].
processStartTag
(
token
)
def
startTagHead
(
self
,
token
):
self
.
parser
.
parseError
(
"two-heads-are-not-better-than-one"
)
def
startTagBaseLinkCommandEventsource
(
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
:
codec
=
inputstream
.
codecName
(
attributes
[
"charset"
])
self
.
parser
.
tokenizer
.
stream
.
changeEncoding
(
codec
)
elif
"content"
in
attributes
:
data
=
inputstream
.
EncodingBytes
(
attributes
[
"content"
].
encode
(
self
.
parser
.
tokenizer
.
stream
.
charEncoding
[
0
]))
parser
=
inputstream
.
ContentAttrParser
(
data
)
codec
=
parser
.
parse
()
self
.
parser
.
tokenizer
.
stream
.
changeEncoding
(
codec
)
def
startTagTitle
(
self
,
token
):
self
.
parser
.
parseRCDataCData
(
token
,
"RCDATA"
)
def
startTagNoScriptNoFramesStyle
(
self
,
token
):
#Need to decide whether to implement the scripting-disabled case
self
.
parser
.
parseRCDataCData
(
token
,
"CDATA"
)
def
startTagScript
(
self
,
token
):
#I think this is equivalent to the CDATA stuff since we don't execute script
#self.tree.insertElement(token)
self
.
parser
.
parseRCDataCData
(
token
,
"CDATA"
)
def
startTagOther
(
self
,
token
):
self
.
anythingElse
()
self
.
parser
.
phase
.
processStartTag
(
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
endTagBr
(
self
,
token
):
self
.
anythingElse
()
self
.
parser
.
phase
.
processEndTag
(
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"
,
"link"
,
"meta"
,
"noframes"
,
"script"
,
"style"
,
"title"
),
self
.
startTagFromHead
),
(
"head"
,
self
.
startTagHead
)
])
self
.
startTagHandler
.
default
=
self
.
startTagOther
self
.
endTagHandler
=
utils
.
MethodDispatcher
([(
"br"
,
self
.
endTagBr
)])
self
.
endTagHandler
.
default
=
self
.
endTagOther
def
processEOF
(
self
):
self
.
anythingElse
()
self
.
parser
.
phase
.
processEOF
()
def
processCharacters
(
self
,
token
):
self
.
anythingElse
()
self
.
parser
.
phase
.
processCharacters
(
token
)
def
startTagBody
(
self
,
token
):
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
()
self
.
parser
.
phase
.
processStartTag
(
token
)
def
endTagBr
(
self
,
token
):
#This is not currently in the spec
self
.
anythingElse
()
self
.
parser
.
phase
.
processEndTag
(
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"
]
class
InBodyPhase
(
Phase
):
# http://www.whatwg.org/specs/web-apps/current-work/#in-body
# the 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"
,
"link"
,
"meta"
,
"script"
,
"style"
,
"title"
),
self
.
startTagProcessInHead
),
(
"body"
,
self
.
startTagBody
),
((
"address"
,
"article"
,
"aside"
,
"blockquote"
,
"center"
,
"datagrid"
,
"details"
,
"dialog"
,
"dir"
,
"div"
,
"dl"
,
"fieldset"
,
"figure"
,
"footer"
,
"h1"
,
"h2"
,
"h3"
,
"h4"
,
"h5"
,
"h6"
,
"header"
,
"listing"
,
"menu"
,
"nav"
,
"ol"
,
"p"
,
"pre"
,
"section"
,
"ul"
),
self
.
startTagCloseP
),
(
"form"
,
self
.
startTagForm
),
((
"li"
,
"dd"
,
"dt"
),
self
.
startTagListItem
),
(
"plaintext"
,
self
.
startTagPlaintext
),
(
headingElements
,
self
.
startTagHeading
),
(
"a"
,
self
.
startTagA
),
((
"b"
,
"big"
,
"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"
,
"basefont"
,
"bgsound"
,
"br"
,
"embed"
,
"img"
,
"param"
,
"spacer"
,
"wbr"
),
self
.
startTagVoidFormatting
),
(
"hr"
,
self
.
startTagHr
),
(
"image"
,
self
.
startTagImage
),
(
"input"
,
self
.
startTagInput
),
(
"isindex"
,
self
.
startTagIsIndex
),
(
"textarea"
,
self
.
startTagTextarea
),
((
"iframe"
,
"noembed"
,
"noframes"
,
"noscript"
),
self
.
startTagCdata
),
(
"select"
,
self
.
startTagSelect
),
((
"rp"
,
"rt"
),
self
.
startTagRpRt
),
((
"option"
,
"optgroup"
),
self
.
startTagOpt
),
((
"caption"
,
"col"
,
"colgroup"
,
"frame"
,
"frameset"
,
"head"
,
"tbody"
,
"td"
,
"tfoot"
,
"th"
,
"thead"
,
"tr"
),
self
.
startTagMisplaced
),
((
"event-source"
,
"command"
),
self
.
startTagNew
)
])
self
.
startTagHandler
.
default
=
self
.
startTagOther
self
.
endTagHandler
=
utils
.
MethodDispatcher
([
(
"body"
,
self
.
endTagBody
),
(
"html"
,
self
.
endTagHtml
),
((
"address"
,
"article"
,
"aside"
,
"blockquote"
,
"center"
,
"datagrid"
,
"details"
,
"dialog"
,
"dir"
,
"div"
,
"dl"
,
"fieldset"
,
"figure"
,
"footer"
,
"header"
,
"listing"
,
"menu"
,
"nav"
,
"ol"
,
"pre"
,
"section"
,
"ul"
),
self
.
endTagBlock
),
(
"form"
,
self
.
endTagForm
),
(
"p"
,
self
.
endTagP
),
((
"dd"
,
"dt"
,
"li"
),
self
.
endTagListItem
),
(
headingElements
,
self
.
endTagHeading
),
((
"a"
,
"b"
,
"big"
,
"em"
,
"font"
,
"i"
,
"nobr"
,
"s"
,
"small"
,
"strike"
,
"strong"
,
"tt"
,
"u"
),
self
.
endTagFormatting
),
((
"applet"
,
"button"
,
"marquee"
,
"object"
),
self
.
endTagAppletButtonMarqueeObject
),
(
"br"
,
self
.
endTagBr
),
])
self
.
endTagHandler
.
default
=
self
.
endTagOther
# helper
def
addFormattingElement
(
self
,
token
):
self
.
tree
.
insertElement
(
token
)
self
.
tree
.
activeFormattingElements
.
append
(
self
.
tree
.
openElements
[
-
1
])
# 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
):
# XXX The specification says to do this for every character at the
# moment, but apparently that doesn't match the real world so we don't
# do it for space characters.
self
.
tree
.
reconstructActiveFormattingElements
()
self
.
tree
.
insertText
(
token
[
"data"
])
#This matches the current spec but may not match the real world
def
processSpaceCharacters
(
self
,
token
):
self
.
tree
.
reconstructActiveFormattingElements
()
self
.
tree
.
insertText
(
token
[
"data"
])
def
startTagProcessInHead
(
self
,
token
):
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
:
for
attr
,
value
in
token
[
"data"
].
items
():
if
attr
not
in
self
.
tree
.
openElements
[
1
].
attributes
:
self
.
tree
.
openElements
[
1
].
attributes
[
attr
]
=
value
def
startTagCloseP
(
self
,
token
):
if
self
.
tree
.
elementInScope
(
"p"
):
self
.
endTagP
(
impliedTagToken
(
"p"
))
self
.
tree
.
insertElement
(
token
)
if
token
[
"name"
]
in
(
"pre"
,
"listing"
):
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"
):
self
.
endTagP
(
"p"
)
self
.
tree
.
insertElement
(
token
)
self
.
tree
.
formPointer
=
self
.
tree
.
openElements
[
-
1
]
def
startTagListItem
(
self
,
token
):
if
self
.
tree
.
elementInScope
(
"p"
):
self
.
endTagP
(
impliedTagToken
(
"p"
))
stopNames
=
{
"li"
:(
"li"
),
"dd"
:(
"dd"
,
"dt"
),
"dt"
:(
"dd"
,
"dt"
)}
stopName
=
stopNames
[
token
[
"name"
]]
# AT Use reversed in Python 2.4...
for
i
,
node
in
enumerate
(
self
.
tree
.
openElements
[::
-
1
]):
if
node
.
name
in
stopName
:
poppedNodes
=
[]
for
j
in
range
(
i
+
1
):
poppedNodes
.
append
(
self
.
tree
.
openElements
.
pop
())
if
i
>=
1
:
self
.
parser
.
parseError
(
i
==
1
and
"missing-end-tag"
or
"missing-end-tags"
,
{
"name"
:
", "
.
join
([
item
.
name
for
item
in
poppedNodes
[:
-
1
]])})
break
# Phrasing elements are all non special, non scoping, non
# formatting elements
if
(
node
.
name
in
(
specialElements
|
scopingElements
)
and
node
.
name
not
in
(
"address"
,
"div"
)):
break
# Always insert an <li> element.
self
.
tree
.
insertElement
(
token
)
def
startTagPlaintext
(
self
,
token
):
if
self
.
tree
.
elementInScope
(
"p"
):
self
.
endTagP
(
impliedTagToken
(
"p"
))
self
.
tree
.
insertElement
(
token
)
self
.
parser
.
tokenizer
.
contentModelFlag
=
contentModelFlags
[
"PLAINTEXT"
]
def
startTagHeading
(
self
,
token
):
if
self
.
tree
.
elementInScope
(
"p"
):
self
.
endTagP
(
impliedTagToken
(
"p"
))
# Uncomment the following for IE7 behavior:
#
#for item in headingElements:
# if self.tree.elementInScope(item):
# self.parser.parseError("unexpected-start-tag", {"name": token["name"]})
# item = self.tree.openElements.pop()
# while item.name not in headingElements:
# item = self.tree.openElements.pop()
# break
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"
))
self
.
parser
.
phase
.
processStartTag
(
token
)
else
:
self
.
tree
.
reconstructActiveFormattingElements
()
self
.
tree
.
insertElement
(
token
)
self
.
tree
.
activeFormattingElements
.
append
(
Marker
)
def
startTagAppletMarqueeObject
(
self
,
token
):
self
.
tree
.
reconstructActiveFormattingElements
()
self
.
tree
.
insertElement
(
token
)
self
.
tree
.
activeFormattingElements
.
append
(
Marker
)
def
startTagXmp
(
self
,
token
):
self
.
tree
.
reconstructActiveFormattingElements
()
self
.
parser
.
parseRCDataCData
(
token
,
"CDATA"
)
def
startTagTable
(
self
,
token
):
if
self
.
tree
.
elementInScope
(
"p"
):
self
.
processEndTag
(
impliedTagToken
(
"p"
))
self
.
tree
.
insertElement
(
token
)
self
.
parser
.
phase
=
self
.
parser
.
phases
[
"inTable"
]
def
startTagVoidFormatting
(
self
,
token
):
self
.
tree
.
reconstructActiveFormattingElements
()
self
.
tree
.
insertElement
(
token
)
self
.
tree
.
openElements
.
pop
()
def
startTagHr
(
self
,
token
):
if
self
.
tree
.
elementInScope
(
"p"
):
self
.
endTagP
(
impliedTagToken
(
"p"
))
self
.
tree
.
insertElement
(
token
)
self
.
tree
.
openElements
.
pop
()
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
startTagInput
(
self
,
token
):
self
.
tree
.
reconstructActiveFormattingElements
()
self
.
tree
.
insertElement
(
token
)
if
self
.
tree
.
formPointer
:
# XXX Not exactly sure what to do here
self
.
tree
.
openElements
[
-
1
].
form
=
self
.
tree
.
formPointer
self
.
tree
.
openElements
.
pop
()
def
startTagIsIndex
(
self
,
token
):
self
.
parser
.
parseError
(
"deprecated-tag"
, {
"name"
:
"isindex"
})
if
self
.
tree
.
formPointer
:
return
self
.
processStartTag
(
impliedTagToken
(
"form"
,
"StartTag"
))
self
.
processStartTag
(
impliedTagToken
(
"hr"
,
"StartTag"
))
self
.
processStartTag
(
impliedTagToken
(
"p"
,
"StartTag"
))
self
.
processStartTag
(
impliedTagToken
(
"label"
,
"StartTag"
))
# XXX Localization ...
self
.
processCharacters
(
{
"type"
:
tokenTypes
[
"Characters"
],
"data"
:
"This is a searchable index. Insert your search keywords here: "
})
attributes
=
token
[
"data"
].
copy
()
#don't really need a copy here I think
attributes
[
"name"
]
=
"isindex"
self
.
processStartTag
(
impliedTagToken
(
"input"
,
"StartTag"
,
attributes
=
attributes
,
selfClosing
=
token
[
"selfClosing"
]))
self
.
processEndTag
(
impliedTagToken
(
"label"
))
self
.
processEndTag
(
impliedTagToken
(
"p"
))
self
.
processStartTag
(
impliedTagToken
(
"hr"
,
"StartTag"
))
self
.
processEndTag
(
impliedTagToken
(
"form"
))
def
startTagTextarea
(
self
,
token
):
# XXX Form element pointer checking here as well...
self
.
tree
.
insertElement
(
token
)
self
.
parser
.
tokenizer
.
contentModelFlag
=
contentModelFlags
[
"RCDATA"
]
self
.
processSpaceCharacters
=
self
.
processSpaceCharactersDropNewline
def
startTagCdata
(
self
,
token
):
"""iframe, noembed noframes, noscript(if scripting enabled)"""
self
.
parser
.
parseRCDataCData
(
token
,
"CDATA"
)
def
startTagOpt
(
self
,
token
):
if
self
.
tree
.
elementInScope
(
"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
)
if
self
.
parser
.
phase
in
(
self
.
parser
.
phases
[
"inTable"
],
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