Update libs
This commit is contained in:
+108
-57
@@ -17,16 +17,17 @@ http://www.crummy.com/software/BeautifulSoup/bs4/doc/
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"""
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__author__ = "Leonard Richardson (leonardr@segfault.org)"
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__version__ = "4.1.0"
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__copyright__ = "Copyright (c) 2004-2012 Leonard Richardson"
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__version__ = "4.3.2"
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__copyright__ = "Copyright (c) 2004-2013 Leonard Richardson"
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__license__ = "MIT"
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__all__ = ['BeautifulSoup']
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import os
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import re
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import warnings
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from .builder import builder_registry
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from .builder import builder_registry, ParserRejectedMarkup
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from .dammit import UnicodeDammit
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from .element import (
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CData,
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@@ -74,11 +75,7 @@ class BeautifulSoup(Tag):
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# want, look for one with these features.
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DEFAULT_BUILDER_FEATURES = ['html', 'fast']
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# Used when determining whether a text node is all whitespace and
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# can be replaced with a single space. A text node that contains
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# fancy Unicode spaces (usually non-breaking) should be left
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# alone.
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STRIP_ASCII_SPACES = {9: None, 10: None, 12: None, 13: None, 32: None, }
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ASCII_SPACES = '\x20\x0a\x09\x0c\x0d'
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def __init__(self, markup="", features=None, builder=None,
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parse_only=None, from_encoding=None, **kwargs):
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@@ -149,7 +146,7 @@ class BeautifulSoup(Tag):
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features = self.DEFAULT_BUILDER_FEATURES
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builder_class = builder_registry.lookup(*features)
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if builder_class is None:
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raise ValueError(
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raise FeatureNotFound(
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"Couldn't find a tree builder with the features you "
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"requested: %s. Do you need to install a parser library?"
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% ",".join(features))
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@@ -160,18 +157,46 @@ class BeautifulSoup(Tag):
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self.parse_only = parse_only
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self.reset()
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if hasattr(markup, 'read'): # It's a file-type object.
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markup = markup.read()
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(self.markup, self.original_encoding, self.declared_html_encoding,
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self.contains_replacement_characters) = (
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self.builder.prepare_markup(markup, from_encoding))
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elif len(markup) <= 256:
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# Print out warnings for a couple beginner problems
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# involving passing non-markup to Beautiful Soup.
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# Beautiful Soup will still parse the input as markup,
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# just in case that's what the user really wants.
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if (isinstance(markup, unicode)
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and not os.path.supports_unicode_filenames):
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possible_filename = markup.encode("utf8")
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else:
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possible_filename = markup
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is_file = False
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try:
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is_file = os.path.exists(possible_filename)
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except Exception, e:
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# This is almost certainly a problem involving
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# characters not valid in filenames on this
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# system. Just let it go.
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pass
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if is_file:
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warnings.warn(
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'"%s" looks like a filename, not markup. You should probably open this file and pass the filehandle into Beautiful Soup.' % markup)
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if markup[:5] == "http:" or markup[:6] == "https:":
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# TODO: This is ugly but I couldn't get it to work in
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# Python 3 otherwise.
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if ((isinstance(markup, bytes) and not b' ' in markup)
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or (isinstance(markup, unicode) and not u' ' in markup)):
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warnings.warn(
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'"%s" looks like a URL. Beautiful Soup is not an HTTP client. You should probably use an HTTP client to get the document behind the URL, and feed that document to Beautiful Soup.' % markup)
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try:
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self._feed()
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except StopParsing:
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pass
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for (self.markup, self.original_encoding, self.declared_html_encoding,
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self.contains_replacement_characters) in (
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self.builder.prepare_markup(markup, from_encoding)):
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self.reset()
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try:
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self._feed()
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break
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except ParserRejectedMarkup:
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pass
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# Clear out the markup and remove the builder's circular
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# reference to this object.
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@@ -192,29 +217,32 @@ class BeautifulSoup(Tag):
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Tag.__init__(self, self, self.builder, self.ROOT_TAG_NAME)
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self.hidden = 1
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self.builder.reset()
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self.currentData = []
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self.current_data = []
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self.currentTag = None
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self.tagStack = []
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self.preserve_whitespace_tag_stack = []
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self.pushTag(self)
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def new_tag(self, name, namespace=None, nsprefix=None, **attrs):
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"""Create a new tag associated with this soup."""
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return Tag(None, self.builder, name, namespace, nsprefix, attrs)
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def new_string(self, s):
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def new_string(self, s, subclass=NavigableString):
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"""Create a new NavigableString associated with this soup."""
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navigable = NavigableString(s)
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navigable = subclass(s)
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navigable.setup()
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return navigable
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def insert_before(self, successor):
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raise ValueError("BeautifulSoup objects don't support insert_before().")
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raise NotImplementedError("BeautifulSoup objects don't support insert_before().")
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def insert_after(self, successor):
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raise ValueError("BeautifulSoup objects don't support insert_after().")
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raise NotImplementedError("BeautifulSoup objects don't support insert_after().")
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def popTag(self):
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tag = self.tagStack.pop()
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if self.preserve_whitespace_tag_stack and tag == self.preserve_whitespace_tag_stack[-1]:
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self.preserve_whitespace_tag_stack.pop()
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#print "Pop", tag.name
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if self.tagStack:
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self.currentTag = self.tagStack[-1]
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@@ -226,32 +254,49 @@ class BeautifulSoup(Tag):
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self.currentTag.contents.append(tag)
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self.tagStack.append(tag)
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self.currentTag = self.tagStack[-1]
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if tag.name in self.builder.preserve_whitespace_tags:
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self.preserve_whitespace_tag_stack.append(tag)
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def endData(self, containerClass=NavigableString):
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if self.currentData:
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currentData = u''.join(self.currentData)
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if (currentData.translate(self.STRIP_ASCII_SPACES) == '' and
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not set([tag.name for tag in self.tagStack]).intersection(
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self.builder.preserve_whitespace_tags)):
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if '\n' in currentData:
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currentData = '\n'
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else:
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currentData = ' '
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self.currentData = []
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if self.current_data:
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current_data = u''.join(self.current_data)
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# If whitespace is not preserved, and this string contains
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# nothing but ASCII spaces, replace it with a single space
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# or newline.
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if not self.preserve_whitespace_tag_stack:
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strippable = True
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for i in current_data:
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if i not in self.ASCII_SPACES:
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strippable = False
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break
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if strippable:
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if '\n' in current_data:
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current_data = '\n'
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else:
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current_data = ' '
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# Reset the data collector.
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self.current_data = []
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# Should we add this string to the tree at all?
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if self.parse_only and len(self.tagStack) <= 1 and \
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(not self.parse_only.text or \
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not self.parse_only.search(currentData)):
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not self.parse_only.search(current_data)):
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return
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o = containerClass(currentData)
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o = containerClass(current_data)
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self.object_was_parsed(o)
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def object_was_parsed(self, o):
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def object_was_parsed(self, o, parent=None, most_recent_element=None):
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"""Add an object to the parse tree."""
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o.setup(self.currentTag, self.previous_element)
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if self.previous_element:
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self.previous_element.next_element = o
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self.previous_element = o
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self.currentTag.contents.append(o)
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parent = parent or self.currentTag
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most_recent_element = most_recent_element or self._most_recent_element
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o.setup(parent, most_recent_element)
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if most_recent_element is not None:
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most_recent_element.next_element = o
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self._most_recent_element = o
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parent.contents.append(o)
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def _popToTag(self, name, nsprefix=None, inclusivePop=True):
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"""Pops the tag stack up to and including the most recent
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@@ -260,22 +305,21 @@ class BeautifulSoup(Tag):
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the given tag."""
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#print "Popping to %s" % name
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if name == self.ROOT_TAG_NAME:
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# The BeautifulSoup object itself can never be popped.
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return
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numPops = 0
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mostRecentTag = None
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most_recently_popped = None
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for i in range(len(self.tagStack) - 1, 0, -1):
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if (name == self.tagStack[i].name
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and nsprefix == self.tagStack[i].nsprefix == nsprefix):
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numPops = len(self.tagStack) - i
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stack_size = len(self.tagStack)
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for i in range(stack_size - 1, 0, -1):
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t = self.tagStack[i]
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if (name == t.name and nsprefix == t.prefix):
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if inclusivePop:
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most_recently_popped = self.popTag()
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break
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if not inclusivePop:
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numPops = numPops - 1
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most_recently_popped = self.popTag()
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for i in range(0, numPops):
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mostRecentTag = self.popTag()
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return mostRecentTag
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return most_recently_popped
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def handle_starttag(self, name, namespace, nsprefix, attrs):
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"""Push a start tag on to the stack.
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@@ -295,12 +339,12 @@ class BeautifulSoup(Tag):
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return None
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tag = Tag(self, self.builder, name, namespace, nsprefix, attrs,
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self.currentTag, self.previous_element)
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self.currentTag, self._most_recent_element)
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if tag is None:
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return tag
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if self.previous_element:
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self.previous_element.next_element = tag
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self.previous_element = tag
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if self._most_recent_element:
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self._most_recent_element.next_element = tag
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self._most_recent_element = tag
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self.pushTag(tag)
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return tag
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@@ -310,7 +354,7 @@ class BeautifulSoup(Tag):
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self._popToTag(name, nsprefix)
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def handle_data(self, data):
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self.currentData.append(data)
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self.current_data.append(data)
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def decode(self, pretty_print=False,
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eventual_encoding=DEFAULT_OUTPUT_ENCODING,
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@@ -333,6 +377,10 @@ class BeautifulSoup(Tag):
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return prefix + super(BeautifulSoup, self).decode(
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indent_level, eventual_encoding, formatter)
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# Alias to make it easier to type import: 'from bs4 import _soup'
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_s = BeautifulSoup
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_soup = BeautifulSoup
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class BeautifulStoneSoup(BeautifulSoup):
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"""Deprecated interface to an XML parser."""
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@@ -347,6 +395,9 @@ class BeautifulStoneSoup(BeautifulSoup):
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class StopParsing(Exception):
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pass
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class FeatureNotFound(ValueError):
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pass
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#By default, act as an HTML pretty-printer.
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if __name__ == '__main__':
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