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mirror of https://github.com/moparisthebest/SickRage synced 2024-11-14 05:15:12 -05:00
SickRage/lib/html5lib/treebuilders/_base.py
echel0n 0d9fbc1ad7 Welcome to our SickBeard-TVRage Edition ...
This version of SickBeard uses both TVDB and TVRage to search and gather it's series data from allowing you to now have access to and download shows that you couldn't before because of being locked into only what TheTVDB had to offer.

Also this edition is based off the code we used in our XEM editon so it does come with scene numbering support as well as all the other features our XEM edition has to offer.

Please before using this with your existing database (sickbeard.db) please make a backup copy of it and delete any other database files such as cache.db and failed.db if present, we HIGHLY recommend starting out with no database files at all to make this a fresh start but the choice is at your own risk!

Enjoy!
2014-03-09 22:39:12 -07:00

378 lines
14 KiB
Python

from html5lib.constants import scopingElements, tableInsertModeElements, namespaces
try:
frozenset
except NameError:
# Import from the sets module for python 2.3
from sets import Set as set
from sets import ImmutableSet as frozenset
# The scope markers are inserted when entering object elements,
# marquees, table cells, and table captions, and are used to prevent formatting
# from "leaking" into tables, object elements, and marquees.
Marker = None
class Node(object):
def __init__(self, name):
"""Node representing an item in the tree.
name - The tag name associated with the node
parent - The parent of the current node (or None for the document node)
value - The value of the current node (applies to text nodes and
comments
attributes - a dict holding name, value pairs for attributes of the node
childNodes - a list of child nodes of the current node. This must
include all elements but not necessarily other node types
_flags - A list of miscellaneous flags that can be set on the node
"""
self.name = name
self.parent = None
self.value = None
self.attributes = {}
self.childNodes = []
self._flags = []
def __unicode__(self):
attributesStr = " ".join(["%s=\"%s\""%(name, value)
for name, value in
self.attributes.iteritems()])
if attributesStr:
return "<%s %s>"%(self.name,attributesStr)
else:
return "<%s>"%(self.name)
def __repr__(self):
return "<%s>" % (self.name)
def appendChild(self, node):
"""Insert node as a child of the current node
"""
raise NotImplementedError
def insertText(self, data, insertBefore=None):
"""Insert data as text in the current node, positioned before the
start of node insertBefore or to the end of the node's text.
"""
raise NotImplementedError
def insertBefore(self, node, refNode):
"""Insert node as a child of the current node, before refNode in the
list of child nodes. Raises ValueError if refNode is not a child of
the current node"""
raise NotImplementedError
def removeChild(self, node):
"""Remove node from the children of the current node
"""
raise NotImplementedError
def reparentChildren(self, newParent):
"""Move all the children of the current node to newParent.
This is needed so that trees that don't store text as nodes move the
text in the correct way
"""
#XXX - should this method be made more general?
for child in self.childNodes:
newParent.appendChild(child)
self.childNodes = []
def cloneNode(self):
"""Return a shallow copy of the current node i.e. a node with the same
name and attributes but with no parent or child nodes
"""
raise NotImplementedError
def hasContent(self):
"""Return true if the node has children or text, false otherwise
"""
raise NotImplementedError
class ActiveFormattingElements(list):
def append(self, node):
equalCount = 0
if node != Marker:
for element in self[::-1]:
if element == Marker:
break
if self.nodesEqual(element, node):
equalCount += 1
if equalCount == 3:
self.remove(element)
break
list.append(self, node)
def nodesEqual(self, node1, node2):
if not node1.nameTuple == node2.nameTuple:
return False
if not node1.attributes == node2.attributes:
return False
return True
class TreeBuilder(object):
"""Base treebuilder implementation
documentClass - the class to use for the bottommost node of a document
elementClass - the class to use for HTML Elements
commentClass - the class to use for comments
doctypeClass - the class to use for doctypes
"""
#Document class
documentClass = None
#The class to use for creating a node
elementClass = None
#The class to use for creating comments
commentClass = None
#The class to use for creating doctypes
doctypeClass = None
#Fragment class
fragmentClass = None
def __init__(self, namespaceHTMLElements):
if namespaceHTMLElements:
self.defaultNamespace = "http://www.w3.org/1999/xhtml"
else:
self.defaultNamespace = None
self.reset()
def reset(self):
self.openElements = []
self.activeFormattingElements = ActiveFormattingElements()
#XXX - rename these to headElement, formElement
self.headPointer = None
self.formPointer = None
self.insertFromTable = False
self.document = self.documentClass()
def elementInScope(self, target, variant=None):
#If we pass a node in we match that. if we pass a string
#match any node with that name
exactNode = hasattr(target, "nameTuple")
listElementsMap = {
None:(scopingElements, False),
"button":(scopingElements | set([(namespaces["html"], "button")]), False),
"list":(scopingElements | set([(namespaces["html"], "ol"),
(namespaces["html"], "ul")]), False),
"table":(set([(namespaces["html"], "html"),
(namespaces["html"], "table")]), False),
"select":(set([(namespaces["html"], "optgroup"),
(namespaces["html"], "option")]), True)
}
listElements, invert = listElementsMap[variant]
for node in reversed(self.openElements):
if (node.name == target and not exactNode or
node == target and exactNode):
return True
elif (invert ^ (node.nameTuple in listElements)):
return False
assert False # We should never reach this point
def reconstructActiveFormattingElements(self):
# Within this algorithm the order of steps described in the
# specification is not quite the same as the order of steps in the
# code. It should still do the same though.
# Step 1: stop the algorithm when there's nothing to do.
if not self.activeFormattingElements:
return
# Step 2 and step 3: we start with the last element. So i is -1.
i = len(self.activeFormattingElements) - 1
entry = self.activeFormattingElements[i]
if entry == Marker or entry in self.openElements:
return
# Step 6
while entry != Marker and entry not in self.openElements:
if i == 0:
#This will be reset to 0 below
i = -1
break
i -= 1
# Step 5: let entry be one earlier in the list.
entry = self.activeFormattingElements[i]
while True:
# Step 7
i += 1
# Step 8
entry = self.activeFormattingElements[i]
clone = entry.cloneNode() #Mainly to get a new copy of the attributes
# Step 9
element = self.insertElement({"type":"StartTag",
"name":clone.name,
"namespace":clone.namespace,
"data":clone.attributes})
# Step 10
self.activeFormattingElements[i] = element
# Step 11
if element == self.activeFormattingElements[-1]:
break
def clearActiveFormattingElements(self):
entry = self.activeFormattingElements.pop()
while self.activeFormattingElements and entry != Marker:
entry = self.activeFormattingElements.pop()
def elementInActiveFormattingElements(self, name):
"""Check if an element exists between the end of the active
formatting elements and the last marker. If it does, return it, else
return false"""
for item in self.activeFormattingElements[::-1]:
# Check for Marker first because if it's a Marker it doesn't have a
# name attribute.
if item == Marker:
break
elif item.name == name:
return item
return False
def insertRoot(self, token):
element = self.createElement(token)
self.openElements.append(element)
self.document.appendChild(element)
def insertDoctype(self, token):
name = token["name"]
publicId = token["publicId"]
systemId = token["systemId"]
doctype = self.doctypeClass(name, publicId, systemId)
self.document.appendChild(doctype)
def insertComment(self, token, parent=None):
if parent is None:
parent = self.openElements[-1]
parent.appendChild(self.commentClass(token["data"]))
def createElement(self, token):
"""Create an element but don't insert it anywhere"""
name = token["name"]
namespace = token.get("namespace", self.defaultNamespace)
element = self.elementClass(name, namespace)
element.attributes = token["data"]
return element
def _getInsertFromTable(self):
return self._insertFromTable
def _setInsertFromTable(self, value):
"""Switch the function used to insert an element from the
normal one to the misnested table one and back again"""
self._insertFromTable = value
if value:
self.insertElement = self.insertElementTable
else:
self.insertElement = self.insertElementNormal
insertFromTable = property(_getInsertFromTable, _setInsertFromTable)
def insertElementNormal(self, token):
name = token["name"]
assert type(name) == unicode, "Element %s not unicode"%name
namespace = token.get("namespace", self.defaultNamespace)
element = self.elementClass(name, namespace)
element.attributes = token["data"]
self.openElements[-1].appendChild(element)
self.openElements.append(element)
return element
def insertElementTable(self, token):
"""Create an element and insert it into the tree"""
element = self.createElement(token)
if self.openElements[-1].name not in tableInsertModeElements:
return self.insertElementNormal(token)
else:
#We should be in the InTable mode. This means we want to do
#special magic element rearranging
parent, insertBefore = self.getTableMisnestedNodePosition()
if insertBefore is None:
parent.appendChild(element)
else:
parent.insertBefore(element, insertBefore)
self.openElements.append(element)
return element
def insertText(self, data, parent=None):
"""Insert text data."""
if parent is None:
parent = self.openElements[-1]
if (not self.insertFromTable or (self.insertFromTable and
self.openElements[-1].name
not in tableInsertModeElements)):
parent.insertText(data)
else:
# We should be in the InTable mode. This means we want to do
# special magic element rearranging
parent, insertBefore = self.getTableMisnestedNodePosition()
parent.insertText(data, insertBefore)
def getTableMisnestedNodePosition(self):
"""Get the foster parent element, and sibling to insert before
(or None) when inserting a misnested table node"""
# The foster parent element is the one which comes before the most
# recently opened table element
# XXX - this is really inelegant
lastTable=None
fosterParent = None
insertBefore = None
for elm in self.openElements[::-1]:
if elm.name == "table":
lastTable = elm
break
if lastTable:
# XXX - we should really check that this parent is actually a
# node here
if lastTable.parent:
fosterParent = lastTable.parent
insertBefore = lastTable
else:
fosterParent = self.openElements[
self.openElements.index(lastTable) - 1]
else:
fosterParent = self.openElements[0]
return fosterParent, insertBefore
def generateImpliedEndTags(self, exclude=None):
name = self.openElements[-1].name
# XXX td, th and tr are not actually needed
if (name in frozenset(("dd", "dt", "li", "option", "optgroup", "p", "rp", "rt"))
and name != exclude):
self.openElements.pop()
# XXX This is not entirely what the specification says. We should
# investigate it more closely.
self.generateImpliedEndTags(exclude)
def getDocument(self):
"Return the final tree"
return self.document
def getFragment(self):
"Return the final fragment"
#assert self.innerHTML
fragment = self.fragmentClass()
self.openElements[0].reparentChildren(fragment)
return fragment
def testSerializer(self, node):
"""Serialize the subtree of node in the format required by unit tests
node - the node from which to start serializing"""
raise NotImplementedError