| 0,0 → 1,2014 |
|---|
| """Beautiful Soup |
| Elixir and Tonic |
| "The Screen-Scraper's Friend" |
| http://www.crummy.com/software/BeautifulSoup/ |
| |
| Beautiful Soup parses a (possibly invalid) XML or HTML document into a |
| tree representation. It provides methods and Pythonic idioms that make |
| it easy to navigate, search, and modify the tree. |
| |
| A well-formed XML/HTML document yields a well-formed data |
| structure. An ill-formed XML/HTML document yields a correspondingly |
| ill-formed data structure. If your document is only locally |
| well-formed, you can use this library to find and process the |
| well-formed part of it. |
| |
| Beautiful Soup works with Python 2.2 and up. It has no external |
| dependencies, but you'll have more success at converting data to UTF-8 |
| if you also install these three packages: |
| |
| * chardet, for auto-detecting character encodings |
| http://chardet.feedparser.org/ |
| * cjkcodecs and iconv_codec, which add more encodings to the ones supported |
| by stock Python. |
| http://cjkpython.i18n.org/ |
| |
| Beautiful Soup defines classes for two main parsing strategies: |
| |
| * BeautifulStoneSoup, for parsing XML, SGML, or your domain-specific |
| language that kind of looks like XML. |
| |
| * BeautifulSoup, for parsing run-of-the-mill HTML code, be it valid |
| or invalid. This class has web browser-like heuristics for |
| obtaining a sensible parse tree in the face of common HTML errors. |
| |
| Beautiful Soup also defines a class (UnicodeDammit) for autodetecting |
| the encoding of an HTML or XML document, and converting it to |
| Unicode. Much of this code is taken from Mark Pilgrim's Universal Feed Parser. |
| |
| For more than you ever wanted to know about Beautiful Soup, see the |
| documentation: |
| http://www.crummy.com/software/BeautifulSoup/documentation.html |
| |
| Here, have some legalese: |
| |
| Copyright (c) 2004-2010, Leonard Richardson |
| |
| All rights reserved. |
| |
| Redistribution and use in source and binary forms, with or without |
| modification, are permitted provided that the following conditions are |
| met: |
| |
| * Redistributions of source code must retain the above copyright |
| notice, this list of conditions and the following disclaimer. |
| |
| * Redistributions in binary form must reproduce the above |
| copyright notice, this list of conditions and the following |
| disclaimer in the documentation and/or other materials provided |
| with the distribution. |
| |
| * Neither the name of the the Beautiful Soup Consortium and All |
| Night Kosher Bakery nor the names of its contributors may be |
| used to endorse or promote products derived from this software |
| without specific prior written permission. |
| |
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE, DAMMIT. |
| |
| """ |
| from __future__ import generators |
| |
| __author__ = "Leonard Richardson (leonardr@segfault.org)" |
| __version__ = "3.2.0" |
| __copyright__ = "Copyright (c) 2004-2010 Leonard Richardson" |
| __license__ = "New-style BSD" |
| |
| from sgmllib import SGMLParser, SGMLParseError |
| import codecs |
| import markupbase |
| import types |
| import re |
| import sgmllib |
| try: |
| from htmlentitydefs import name2codepoint |
| except ImportError: |
| name2codepoint = {} |
| try: |
| set |
| except NameError: |
| from sets import Set as set |
| |
| #These hacks make Beautiful Soup able to parse XML with namespaces |
| sgmllib.tagfind = re.compile('[a-zA-Z][-_.:a-zA-Z0-9]*') |
| markupbase._declname_match = re.compile(r'[a-zA-Z][-_.:a-zA-Z0-9]*\s*').match |
| |
| DEFAULT_OUTPUT_ENCODING = "utf-8" |
| |
| def _match_css_class(str): |
| """Build a RE to match the given CSS class.""" |
| return re.compile(r"(^|.*\s)%s($|\s)" % str) |
| |
| # First, the classes that represent markup elements. |
| |
| class PageElement(object): |
| """Contains the navigational information for some part of the page |
| (either a tag or a piece of text)""" |
| |
| def setup(self, parent=None, previous=None): |
| """Sets up the initial relations between this element and |
| other elements.""" |
| self.parent = parent |
| self.previous = previous |
| self.next = None |
| self.previousSibling = None |
| self.nextSibling = None |
| if self.parent and self.parent.contents: |
| self.previousSibling = self.parent.contents[-1] |
| self.previousSibling.nextSibling = self |
| |
| def replaceWith(self, replaceWith): |
| oldParent = self.parent |
| myIndex = self.parent.index(self) |
| if hasattr(replaceWith, "parent")\ |
| and replaceWith.parent is self.parent: |
| # We're replacing this element with one of its siblings. |
| index = replaceWith.parent.index(replaceWith) |
| if index and index < myIndex: |
| # Furthermore, it comes before this element. That |
| # means that when we extract it, the index of this |
| # element will change. |
| myIndex = myIndex - 1 |
| self.extract() |
| oldParent.insert(myIndex, replaceWith) |
| |
| def replaceWithChildren(self): |
| myParent = self.parent |
| myIndex = self.parent.index(self) |
| self.extract() |
| reversedChildren = list(self.contents) |
| reversedChildren.reverse() |
| for child in reversedChildren: |
| myParent.insert(myIndex, child) |
| |
| def extract(self): |
| """Destructively rips this element out of the tree.""" |
| if self.parent: |
| try: |
| del self.parent.contents[self.parent.index(self)] |
| except ValueError: |
| pass |
| |
| #Find the two elements that would be next to each other if |
| #this element (and any children) hadn't been parsed. Connect |
| #the two. |
| lastChild = self._lastRecursiveChild() |
| nextElement = lastChild.next |
| |
| if self.previous: |
| self.previous.next = nextElement |
| if nextElement: |
| nextElement.previous = self.previous |
| self.previous = None |
| lastChild.next = None |
| |
| self.parent = None |
| if self.previousSibling: |
| self.previousSibling.nextSibling = self.nextSibling |
| if self.nextSibling: |
| self.nextSibling.previousSibling = self.previousSibling |
| self.previousSibling = self.nextSibling = None |
| return self |
| |
| def _lastRecursiveChild(self): |
| "Finds the last element beneath this object to be parsed." |
| lastChild = self |
| while hasattr(lastChild, 'contents') and lastChild.contents: |
| lastChild = lastChild.contents[-1] |
| return lastChild |
| |
| def insert(self, position, newChild): |
| if isinstance(newChild, basestring) \ |
| and not isinstance(newChild, NavigableString): |
| newChild = NavigableString(newChild) |
| |
| position = min(position, len(self.contents)) |
| if hasattr(newChild, 'parent') and newChild.parent is not None: |
| # We're 'inserting' an element that's already one |
| # of this object's children. |
| if newChild.parent is self: |
| index = self.index(newChild) |
| if index > position: |
| # Furthermore we're moving it further down the |
| # list of this object's children. That means that |
| # when we extract this element, our target index |
| # will jump down one. |
| position = position - 1 |
| newChild.extract() |
| |
| newChild.parent = self |
| previousChild = None |
| if position == 0: |
| newChild.previousSibling = None |
| newChild.previous = self |
| else: |
| previousChild = self.contents[position-1] |
| newChild.previousSibling = previousChild |
| newChild.previousSibling.nextSibling = newChild |
| newChild.previous = previousChild._lastRecursiveChild() |
| if newChild.previous: |
| newChild.previous.next = newChild |
| |
| newChildsLastElement = newChild._lastRecursiveChild() |
| |
| if position >= len(self.contents): |
| newChild.nextSibling = None |
| |
| parent = self |
| parentsNextSibling = None |
| while not parentsNextSibling: |
| parentsNextSibling = parent.nextSibling |
| parent = parent.parent |
| if not parent: # This is the last element in the document. |
| break |
| if parentsNextSibling: |
| newChildsLastElement.next = parentsNextSibling |
| else: |
| newChildsLastElement.next = None |
| else: |
| nextChild = self.contents[position] |
| newChild.nextSibling = nextChild |
| if newChild.nextSibling: |
| newChild.nextSibling.previousSibling = newChild |
| newChildsLastElement.next = nextChild |
| |
| if newChildsLastElement.next: |
| newChildsLastElement.next.previous = newChildsLastElement |
| self.contents.insert(position, newChild) |
| |
| def append(self, tag): |
| """Appends the given tag to the contents of this tag.""" |
| self.insert(len(self.contents), tag) |
| |
| def findNext(self, name=None, attrs={}, text=None, **kwargs): |
| """Returns the first item that matches the given criteria and |
| appears after this Tag in the document.""" |
| return self._findOne(self.findAllNext, name, attrs, text, **kwargs) |
| |
| def findAllNext(self, name=None, attrs={}, text=None, limit=None, |
| **kwargs): |
| """Returns all items that match the given criteria and appear |
| after this Tag in the document.""" |
| return self._findAll(name, attrs, text, limit, self.nextGenerator, |
| **kwargs) |
| |
| def findNextSibling(self, name=None, attrs={}, text=None, **kwargs): |
| """Returns the closest sibling to this Tag that matches the |
| given criteria and appears after this Tag in the document.""" |
| return self._findOne(self.findNextSiblings, name, attrs, text, |
| **kwargs) |
| |
| def findNextSiblings(self, name=None, attrs={}, text=None, limit=None, |
| **kwargs): |
| """Returns the siblings of this Tag that match the given |
| criteria and appear after this Tag in the document.""" |
| return self._findAll(name, attrs, text, limit, |
| self.nextSiblingGenerator, **kwargs) |
| fetchNextSiblings = findNextSiblings # Compatibility with pre-3.x |
| |
| def findPrevious(self, name=None, attrs={}, text=None, **kwargs): |
| """Returns the first item that matches the given criteria and |
| appears before this Tag in the document.""" |
| return self._findOne(self.findAllPrevious, name, attrs, text, **kwargs) |
| |
| def findAllPrevious(self, name=None, attrs={}, text=None, limit=None, |
| **kwargs): |
| """Returns all items that match the given criteria and appear |
| before this Tag in the document.""" |
| return self._findAll(name, attrs, text, limit, self.previousGenerator, |
| **kwargs) |
| fetchPrevious = findAllPrevious # Compatibility with pre-3.x |
| |
| def findPreviousSibling(self, name=None, attrs={}, text=None, **kwargs): |
| """Returns the closest sibling to this Tag that matches the |
| given criteria and appears before this Tag in the document.""" |
| return self._findOne(self.findPreviousSiblings, name, attrs, text, |
| **kwargs) |
| |
| def findPreviousSiblings(self, name=None, attrs={}, text=None, |
| limit=None, **kwargs): |
| """Returns the siblings of this Tag that match the given |
| criteria and appear before this Tag in the document.""" |
| return self._findAll(name, attrs, text, limit, |
| self.previousSiblingGenerator, **kwargs) |
| fetchPreviousSiblings = findPreviousSiblings # Compatibility with pre-3.x |
| |
| def findParent(self, name=None, attrs={}, **kwargs): |
| """Returns the closest parent of this Tag that matches the given |
| criteria.""" |
| # NOTE: We can't use _findOne because findParents takes a different |
| # set of arguments. |
| r = None |
| l = self.findParents(name, attrs, 1) |
| if l: |
| r = l[0] |
| return r |
| |
| def findParents(self, name=None, attrs={}, limit=None, **kwargs): |
| """Returns the parents of this Tag that match the given |
| criteria.""" |
| |
| return self._findAll(name, attrs, None, limit, self.parentGenerator, |
| **kwargs) |
| fetchParents = findParents # Compatibility with pre-3.x |
| |
| #These methods do the real heavy lifting. |
| |
| def _findOne(self, method, name, attrs, text, **kwargs): |
| r = None |
| l = method(name, attrs, text, 1, **kwargs) |
| if l: |
| r = l[0] |
| return r |
| |
| def _findAll(self, name, attrs, text, limit, generator, **kwargs): |
| "Iterates over a generator looking for things that match." |
| |
| if isinstance(name, SoupStrainer): |
| strainer = name |
| # (Possibly) special case some findAll*(...) searches |
| elif text is None and not limit and not attrs and not kwargs: |
| # findAll*(True) |
| if name is True: |
| return [element for element in generator() |
| if isinstance(element, Tag)] |
| # findAll*('tag-name') |
| elif isinstance(name, basestring): |
| return [element for element in generator() |
| if isinstance(element, Tag) and |
| element.name == name] |
| else: |
| strainer = SoupStrainer(name, attrs, text, **kwargs) |
| # Build a SoupStrainer |
| else: |
| strainer = SoupStrainer(name, attrs, text, **kwargs) |
| results = ResultSet(strainer) |
| g = generator() |
| while True: |
| try: |
| i = g.next() |
| except StopIteration: |
| break |
| if i: |
| found = strainer.search(i) |
| if found: |
| results.append(found) |
| if limit and len(results) >= limit: |
| break |
| return results |
| |
| #These Generators can be used to navigate starting from both |
| #NavigableStrings and Tags. |
| def nextGenerator(self): |
| i = self |
| while i is not None: |
| i = i.next |
| yield i |
| |
| def nextSiblingGenerator(self): |
| i = self |
| while i is not None: |
| i = i.nextSibling |
| yield i |
| |
| def previousGenerator(self): |
| i = self |
| while i is not None: |
| i = i.previous |
| yield i |
| |
| def previousSiblingGenerator(self): |
| i = self |
| while i is not None: |
| i = i.previousSibling |
| yield i |
| |
| def parentGenerator(self): |
| i = self |
| while i is not None: |
| i = i.parent |
| yield i |
| |
| # Utility methods |
| def substituteEncoding(self, str, encoding=None): |
| encoding = encoding or "utf-8" |
| return str.replace("%SOUP-ENCODING%", encoding) |
| |
| def toEncoding(self, s, encoding=None): |
| """Encodes an object to a string in some encoding, or to Unicode. |
| .""" |
| if isinstance(s, unicode): |
| if encoding: |
| s = s.encode(encoding) |
| elif isinstance(s, str): |
| if encoding: |
| s = s.encode(encoding) |
| else: |
| s = unicode(s) |
| else: |
| if encoding: |
| s = self.toEncoding(str(s), encoding) |
| else: |
| s = unicode(s) |
| return s |
| |
| class NavigableString(unicode, PageElement): |
| |
| def __new__(cls, value): |
| """Create a new NavigableString. |
| |
| When unpickling a NavigableString, this method is called with |
| the string in DEFAULT_OUTPUT_ENCODING. That encoding needs to be |
| passed in to the superclass's __new__ or the superclass won't know |
| how to handle non-ASCII characters. |
| """ |
| if isinstance(value, unicode): |
| return unicode.__new__(cls, value) |
| return unicode.__new__(cls, value, DEFAULT_OUTPUT_ENCODING) |
| |
| def __getnewargs__(self): |
| return (NavigableString.__str__(self),) |
| |
| def __getattr__(self, attr): |
| """text.string gives you text. This is for backwards |
| compatibility for Navigable*String, but for CData* it lets you |
| get the string without the CData wrapper.""" |
| if attr == 'string': |
| return self |
| else: |
| raise AttributeError, "'%s' object has no attribute '%s'" % (self.__class__.__name__, attr) |
| |
| def __unicode__(self): |
| return str(self).decode(DEFAULT_OUTPUT_ENCODING) |
| |
| def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING): |
| if encoding: |
| return self.encode(encoding) |
| else: |
| return self |
| |
| class CData(NavigableString): |
| |
| def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING): |
| return "<![CDATA[%s]]>" % NavigableString.__str__(self, encoding) |
| |
| class ProcessingInstruction(NavigableString): |
| def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING): |
| output = self |
| if "%SOUP-ENCODING%" in output: |
| output = self.substituteEncoding(output, encoding) |
| return "<?%s?>" % self.toEncoding(output, encoding) |
| |
| class Comment(NavigableString): |
| def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING): |
| return "<!--%s-->" % NavigableString.__str__(self, encoding) |
| |
| class Declaration(NavigableString): |
| def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING): |
| return "<!%s>" % NavigableString.__str__(self, encoding) |
| |
| class Tag(PageElement): |
| |
| """Represents a found HTML tag with its attributes and contents.""" |
| |
| def _invert(h): |
| "Cheap function to invert a hash." |
| i = {} |
| for k,v in h.items(): |
| i[v] = k |
| return i |
| |
| XML_ENTITIES_TO_SPECIAL_CHARS = { "apos" : "'", |
| "quot" : '"', |
| "amp" : "&", |
| "lt" : "<", |
| "gt" : ">" } |
| |
| XML_SPECIAL_CHARS_TO_ENTITIES = _invert(XML_ENTITIES_TO_SPECIAL_CHARS) |
| |
| def _convertEntities(self, match): |
| """Used in a call to re.sub to replace HTML, XML, and numeric |
| entities with the appropriate Unicode characters. If HTML |
| entities are being converted, any unrecognized entities are |
| escaped.""" |
| x = match.group(1) |
| if self.convertHTMLEntities and x in name2codepoint: |
| return unichr(name2codepoint[x]) |
| elif x in self.XML_ENTITIES_TO_SPECIAL_CHARS: |
| if self.convertXMLEntities: |
| return self.XML_ENTITIES_TO_SPECIAL_CHARS[x] |
| else: |
| return u'&%s;' % x |
| elif len(x) > 0 and x[0] == '#': |
| # Handle numeric entities |
| if len(x) > 1 and x[1] == 'x': |
| return unichr(int(x[2:], 16)) |
| else: |
| return unichr(int(x[1:])) |
| |
| elif self.escapeUnrecognizedEntities: |
| return u'&%s;' % x |
| else: |
| return u'&%s;' % x |
| |
| def __init__(self, parser, name, attrs=None, parent=None, |
| previous=None): |
| "Basic constructor." |
| |
| # We don't actually store the parser object: that lets extracted |
| # chunks be garbage-collected |
| self.parserClass = parser.__class__ |
| self.isSelfClosing = parser.isSelfClosingTag(name) |
| self.name = name |
| if attrs is None: |
| attrs = [] |
| elif isinstance(attrs, dict): |
| attrs = attrs.items() |
| self.attrs = attrs |
| self.contents = [] |
| self.setup(parent, previous) |
| self.hidden = False |
| self.containsSubstitutions = False |
| self.convertHTMLEntities = parser.convertHTMLEntities |
| self.convertXMLEntities = parser.convertXMLEntities |
| self.escapeUnrecognizedEntities = parser.escapeUnrecognizedEntities |
| |
| # Convert any HTML, XML, or numeric entities in the attribute values. |
| convert = lambda(k, val): (k, |
| re.sub("&(#\d+|#x[0-9a-fA-F]+|\w+);", |
| self._convertEntities, |
| val)) |
| self.attrs = map(convert, self.attrs) |
| |
| def getString(self): |
| if (len(self.contents) == 1 |
| and isinstance(self.contents[0], NavigableString)): |
| return self.contents[0] |
| |
| def setString(self, string): |
| """Replace the contents of the tag with a string""" |
| self.clear() |
| self.append(string) |
| |
| string = property(getString, setString) |
| |
| def getText(self, separator=u""): |
| if not len(self.contents): |
| return u"" |
| stopNode = self._lastRecursiveChild().next |
| strings = [] |
| current = self.contents[0] |
| while current is not stopNode: |
| if isinstance(current, NavigableString): |
| strings.append(current.strip()) |
| current = current.next |
| return separator.join(strings) |
| |
| text = property(getText) |
| |
| def get(self, key, default=None): |
| """Returns the value of the 'key' attribute for the tag, or |
| the value given for 'default' if it doesn't have that |
| attribute.""" |
| return self._getAttrMap().get(key, default) |
| |
| def clear(self): |
| """Extract all children.""" |
| for child in self.contents[:]: |
| child.extract() |
| |
| def index(self, element): |
| for i, child in enumerate(self.contents): |
| if child is element: |
| return i |
| raise ValueError("Tag.index: element not in tag") |
| |
| def has_key(self, key): |
| return self._getAttrMap().has_key(key) |
| |
| def __getitem__(self, key): |
| """tag[key] returns the value of the 'key' attribute for the tag, |
| and throws an exception if it's not there.""" |
| return self._getAttrMap()[key] |
| |
| def __iter__(self): |
| "Iterating over a tag iterates over its contents." |
| return iter(self.contents) |
| |
| def __len__(self): |
| "The length of a tag is the length of its list of contents." |
| return len(self.contents) |
| |
| def __contains__(self, x): |
| return x in self.contents |
| |
| def __nonzero__(self): |
| "A tag is non-None even if it has no contents." |
| return True |
| |
| def __setitem__(self, key, value): |
| """Setting tag[key] sets the value of the 'key' attribute for the |
| tag.""" |
| self._getAttrMap() |
| self.attrMap[key] = value |
| found = False |
| for i in range(0, len(self.attrs)): |
| if self.attrs[i][0] == key: |
| self.attrs[i] = (key, value) |
| found = True |
| if not found: |
| self.attrs.append((key, value)) |
| self._getAttrMap()[key] = value |
| |
| def __delitem__(self, key): |
| "Deleting tag[key] deletes all 'key' attributes for the tag." |
| for item in self.attrs: |
| if item[0] == key: |
| self.attrs.remove(item) |
| #We don't break because bad HTML can define the same |
| #attribute multiple times. |
| self._getAttrMap() |
| if self.attrMap.has_key(key): |
| del self.attrMap[key] |
| |
| def __call__(self, *args, **kwargs): |
| """Calling a tag like a function is the same as calling its |
| findAll() method. Eg. tag('a') returns a list of all the A tags |
| found within this tag.""" |
| return apply(self.findAll, args, kwargs) |
| |
| def __getattr__(self, tag): |
| #print "Getattr %s.%s" % (self.__class__, tag) |
| if len(tag) > 3 and tag.rfind('Tag') == len(tag)-3: |
| return self.find(tag[:-3]) |
| elif tag.find('__') != 0: |
| return self.find(tag) |
| raise AttributeError, "'%s' object has no attribute '%s'" % (self.__class__, tag) |
| |
| def __eq__(self, other): |
| """Returns true iff this tag has the same name, the same attributes, |
| and the same contents (recursively) as the given tag. |
| |
| NOTE: right now this will return false if two tags have the |
| same attributes in a different order. Should this be fixed?""" |
| if other is self: |
| return True |
| if not hasattr(other, 'name') or not hasattr(other, 'attrs') or not hasattr(other, 'contents') or self.name != other.name or self.attrs != other.attrs or len(self) != len(other): |
| return False |
| for i in range(0, len(self.contents)): |
| if self.contents[i] != other.contents[i]: |
| return False |
| return True |
| |
| def __ne__(self, other): |
| """Returns true iff this tag is not identical to the other tag, |
| as defined in __eq__.""" |
| return not self == other |
| |
| def __repr__(self, encoding=DEFAULT_OUTPUT_ENCODING): |
| """Renders this tag as a string.""" |
| return self.__str__(encoding) |
| |
| def __unicode__(self): |
| return self.__str__(None) |
| |
| BARE_AMPERSAND_OR_BRACKET = re.compile("([<>]|" |
| + "&(?!#\d+;|#x[0-9a-fA-F]+;|\w+;)" |
| + ")") |
| |
| def _sub_entity(self, x): |
| """Used with a regular expression to substitute the |
| appropriate XML entity for an XML special character.""" |
| return "&" + self.XML_SPECIAL_CHARS_TO_ENTITIES[x.group(0)[0]] + ";" |
| |
| def __str__(self, encoding=DEFAULT_OUTPUT_ENCODING, |
| prettyPrint=False, indentLevel=0): |
| """Returns a string or Unicode representation of this tag and |
| its contents. To get Unicode, pass None for encoding. |
| |
| NOTE: since Python's HTML parser consumes whitespace, this |
| method is not certain to reproduce the whitespace present in |
| the original string.""" |
| |
| encodedName = self.toEncoding(self.name, encoding) |
| |
| attrs = [] |
| if self.attrs: |
| for key, val in self.attrs: |
| fmt = '%s="%s"' |
| if isinstance(val, basestring): |
| if self.containsSubstitutions and '%SOUP-ENCODING%' in val: |
| val = self.substituteEncoding(val, encoding) |
| |
| # The attribute value either: |
| # |
| # * Contains no embedded double quotes or single quotes. |
| # No problem: we enclose it in double quotes. |
| # * Contains embedded single quotes. No problem: |
| # double quotes work here too. |
| # * Contains embedded double quotes. No problem: |
| # we enclose it in single quotes. |
| # * Embeds both single _and_ double quotes. This |
| # can't happen naturally, but it can happen if |
| # you modify an attribute value after parsing |
| # the document. Now we have a bit of a |
| # problem. We solve it by enclosing the |
| # attribute in single quotes, and escaping any |
| # embedded single quotes to XML entities. |
| if '"' in val: |
| fmt = "%s='%s'" |
| if "'" in val: |
| # TODO: replace with apos when |
| # appropriate. |
| val = val.replace("'", "&squot;") |
| |
| # Now we're okay w/r/t quotes. But the attribute |
| # value might also contain angle brackets, or |
| # ampersands that aren't part of entities. We need |
| # to escape those to XML entities too. |
| val = self.BARE_AMPERSAND_OR_BRACKET.sub(self._sub_entity, val) |
| |
| attrs.append(fmt % (self.toEncoding(key, encoding), |
| self.toEncoding(val, encoding))) |
| close = '' |
| closeTag = '' |
| if self.isSelfClosing: |
| close = ' /' |
| else: |
| closeTag = '</%s>' % encodedName |
| |
| indentTag, indentContents = 0, 0 |
| if prettyPrint: |
| indentTag = indentLevel |
| space = (' ' * (indentTag-1)) |
| indentContents = indentTag + 1 |
| contents = self.renderContents(encoding, prettyPrint, indentContents) |
| if self.hidden: |
| s = contents |
| else: |
| s = [] |
| attributeString = '' |
| if attrs: |
| attributeString = ' ' + ' '.join(attrs) |
| if prettyPrint: |
| s.append(space) |
| s.append('<%s%s%s>' % (encodedName, attributeString, close)) |
| if prettyPrint: |
| s.append("\n") |
| s.append(contents) |
| if prettyPrint and contents and contents[-1] != "\n": |
| s.append("\n") |
| if prettyPrint and closeTag: |
| s.append(space) |
| s.append(closeTag) |
| if prettyPrint and closeTag and self.nextSibling: |
| s.append("\n") |
| s = ''.join(s) |
| return s |
| |
| def decompose(self): |
| """Recursively destroys the contents of this tree.""" |
| self.extract() |
| if len(self.contents) == 0: |
| return |
| current = self.contents[0] |
| while current is not None: |
| next = current.next |
| if isinstance(current, Tag): |
| del current.contents[:] |
| current.parent = None |
| current.previous = None |
| current.previousSibling = None |
| current.next = None |
| current.nextSibling = None |
| current = next |
| |
| def prettify(self, encoding=DEFAULT_OUTPUT_ENCODING): |
| return self.__str__(encoding, True) |
| |
| def renderContents(self, encoding=DEFAULT_OUTPUT_ENCODING, |
| prettyPrint=False, indentLevel=0): |
| """Renders the contents of this tag as a string in the given |
| encoding. If encoding is None, returns a Unicode string..""" |
| s=[] |
| for c in self: |
| text = None |
| if isinstance(c, NavigableString): |
| text = c.__str__(encoding) |
| elif isinstance(c, Tag): |
| s.append(c.__str__(encoding, prettyPrint, indentLevel)) |
| if text and prettyPrint: |
| text = text.strip() |
| if text: |
| if prettyPrint: |
| s.append(" " * (indentLevel-1)) |
| s.append(text) |
| if prettyPrint: |
| s.append("\n") |
| return ''.join(s) |
| |
| #Soup methods |
| |
| def find(self, name=None, attrs={}, recursive=True, text=None, |
| **kwargs): |
| """Return only the first child of this Tag matching the given |
| criteria.""" |
| r = None |
| l = self.findAll(name, attrs, recursive, text, 1, **kwargs) |
| if l: |
| r = l[0] |
| return r |
| findChild = find |
| |
| def findAll(self, name=None, attrs={}, recursive=True, text=None, |
| limit=None, **kwargs): |
| """Extracts a list of Tag objects that match the given |
| criteria. You can specify the name of the Tag and any |
| attributes you want the Tag to have. |
| |
| The value of a key-value pair in the 'attrs' map can be a |
| string, a list of strings, a regular expression object, or a |
| callable that takes a string and returns whether or not the |
| string matches for some custom definition of 'matches'. The |
| same is true of the tag name.""" |
| generator = self.recursiveChildGenerator |
| if not recursive: |
| generator = self.childGenerator |
| return self._findAll(name, attrs, text, limit, generator, **kwargs) |
| findChildren = findAll |
| |
| # Pre-3.x compatibility methods |
| first = find |
| fetch = findAll |
| |
| def fetchText(self, text=None, recursive=True, limit=None): |
| return self.findAll(text=text, recursive=recursive, limit=limit) |
| |
| def firstText(self, text=None, recursive=True): |
| return self.find(text=text, recursive=recursive) |
| |
| #Private methods |
| |
| def _getAttrMap(self): |
| """Initializes a map representation of this tag's attributes, |
| if not already initialized.""" |
| if not getattr(self, 'attrMap'): |
| self.attrMap = {} |
| for (key, value) in self.attrs: |
| self.attrMap[key] = value |
| return self.attrMap |
| |
| #Generator methods |
| def childGenerator(self): |
| # Just use the iterator from the contents |
| return iter(self.contents) |
| |
| def recursiveChildGenerator(self): |
| if not len(self.contents): |
| raise StopIteration |
| stopNode = self._lastRecursiveChild().next |
| current = self.contents[0] |
| while current is not stopNode: |
| yield current |
| current = current.next |
| |
| |
| # Next, a couple classes to represent queries and their results. |
| class SoupStrainer: |
| """Encapsulates a number of ways of matching a markup element (tag or |
| text).""" |
| |
| def __init__(self, name=None, attrs={}, text=None, **kwargs): |
| self.name = name |
| if isinstance(attrs, basestring): |
| kwargs['class'] = _match_css_class(attrs) |
| attrs = None |
| if kwargs: |
| if attrs: |
| attrs = attrs.copy() |
| attrs.update(kwargs) |
| else: |
| attrs = kwargs |
| self.attrs = attrs |
| self.text = text |
| |
| def __str__(self): |
| if self.text: |
| return self.text |
| else: |
| return "%s|%s" % (self.name, self.attrs) |
| |
| def searchTag(self, markupName=None, markupAttrs={}): |
| found = None |
| markup = None |
| if isinstance(markupName, Tag): |
| markup = markupName |
| markupAttrs = markup |
| callFunctionWithTagData = callable(self.name) \ |
| and not isinstance(markupName, Tag) |
| |
| if (not self.name) \ |
| or callFunctionWithTagData \ |
| or (markup and self._matches(markup, self.name)) \ |
| or (not markup and self._matches(markupName, self.name)): |
| if callFunctionWithTagData: |
| match = self.name(markupName, markupAttrs) |
| else: |
| match = True |
| markupAttrMap = None |
| for attr, matchAgainst in self.attrs.items(): |
| if not markupAttrMap: |
| if hasattr(markupAttrs, 'get'): |
| markupAttrMap = markupAttrs |
| else: |
| markupAttrMap = {} |
| for k,v in markupAttrs: |
| markupAttrMap[k] = v |
| attrValue = markupAttrMap.get(attr) |
| if not self._matches(attrValue, matchAgainst): |
| match = False |
| break |
| if match: |
| if markup: |
| found = markup |
| else: |
| found = markupName |
| return found |
| |
| def search(self, markup): |
| #print 'looking for %s in %s' % (self, markup) |
| found = None |
| # If given a list of items, scan it for a text element that |
| # matches. |
| if hasattr(markup, "__iter__") \ |
| and not isinstance(markup, Tag): |
| for element in markup: |
| if isinstance(element, NavigableString) \ |
| and self.search(element): |
| found = element |
| break |
| # If it's a Tag, make sure its name or attributes match. |
| # Don't bother with Tags if we're searching for text. |
| elif isinstance(markup, Tag): |
| if not self.text: |
| found = self.searchTag(markup) |
| # If it's text, make sure the text matches. |
| elif isinstance(markup, NavigableString) or \ |
| isinstance(markup, basestring): |
| if self._matches(markup, self.text): |
| found = markup |
| else: |
| raise Exception, "I don't know how to match against a %s" \ |
| % markup.__class__ |
| return found |
| |
| def _matches(self, markup, matchAgainst): |
| #print "Matching %s against %s" % (markup, matchAgainst) |
| result = False |
| if matchAgainst is True: |
| result = markup is not None |
| elif callable(matchAgainst): |
| result = matchAgainst(markup) |
| else: |
| #Custom match methods take the tag as an argument, but all |
| #other ways of matching match the tag name as a string. |
| if isinstance(markup, Tag): |
| markup = markup.name |
| if markup and not isinstance(markup, basestring): |
| markup = unicode(markup) |
| #Now we know that chunk is either a string, or None. |
| if hasattr(matchAgainst, 'match'): |
| # It's a regexp object. |
| result = markup and matchAgainst.search(markup) |
| elif hasattr(matchAgainst, '__iter__'): # list-like |
| result = markup in matchAgainst |
| elif hasattr(matchAgainst, 'items'): |
| result = markup.has_key(matchAgainst) |
| elif matchAgainst and isinstance(markup, basestring): |
| if isinstance(markup, unicode): |
| matchAgainst = unicode(matchAgainst) |
| else: |
| matchAgainst = str(matchAgainst) |
| |
| if not result: |
| result = matchAgainst == markup |
| return result |
| |
| class ResultSet(list): |
| """A ResultSet is just a list that keeps track of the SoupStrainer |
| that created it.""" |
| def __init__(self, source): |
| list.__init__([]) |
| self.source = source |
| |
| # Now, some helper functions. |
| |
| def buildTagMap(default, *args): |
| """Turns a list of maps, lists, or scalars into a single map. |
| Used to build the SELF_CLOSING_TAGS, NESTABLE_TAGS, and |
| NESTING_RESET_TAGS maps out of lists and partial maps.""" |
| built = {} |
| for portion in args: |
| if hasattr(portion, 'items'): |
| #It's a map. Merge it. |
| for k,v in portion.items(): |
| built[k] = v |
| elif hasattr(portion, '__iter__'): # is a list |
| #It's a list. Map each item to the default. |
| for k in portion: |
| built[k] = default |
| else: |
| #It's a scalar. Map it to the default. |
| built[portion] = default |
| return built |
| |
| # Now, the parser classes. |
| |
| class BeautifulStoneSoup(Tag, SGMLParser): |
| |
| """This class contains the basic parser and search code. It defines |
| a parser that knows nothing about tag behavior except for the |
| following: |
| |
| You can't close a tag without closing all the tags it encloses. |
| That is, "<foo><bar></foo>" actually means |
| "<foo><bar></bar></foo>". |
| |
| [Another possible explanation is "<foo><bar /></foo>", but since |
| this class defines no SELF_CLOSING_TAGS, it will never use that |
| explanation.] |
| |
| This class is useful for parsing XML or made-up markup languages, |
| or when BeautifulSoup makes an assumption counter to what you were |
| expecting.""" |
| |
| SELF_CLOSING_TAGS = {} |
| NESTABLE_TAGS = {} |
| RESET_NESTING_TAGS = {} |
| QUOTE_TAGS = {} |
| PRESERVE_WHITESPACE_TAGS = [] |
| |
| MARKUP_MASSAGE = [(re.compile('(<[^<>]*)/>'), |
| lambda x: x.group(1) + ' />'), |
| (re.compile('<!\s+([^<>]*)>'), |
| lambda x: '<!' + x.group(1) + '>') |
| ] |
| |
| ROOT_TAG_NAME = u'[document]' |
| |
| HTML_ENTITIES = "html" |
| XML_ENTITIES = "xml" |
| XHTML_ENTITIES = "xhtml" |
| # TODO: This only exists for backwards-compatibility |
| ALL_ENTITIES = XHTML_ENTITIES |
| |
| # Used when determining whether a text node is all whitespace and |
| # can be replaced with a single space. A text node that contains |
| # fancy Unicode spaces (usually non-breaking) should be left |
| # alone. |
| STRIP_ASCII_SPACES = { 9: None, 10: None, 12: None, 13: None, 32: None, } |
| |
| def __init__(self, markup="", parseOnlyThese=None, fromEncoding=None, |
| markupMassage=True, smartQuotesTo=XML_ENTITIES, |
| convertEntities=None, selfClosingTags=None, isHTML=False): |
| """The Soup object is initialized as the 'root tag', and the |
| provided markup (which can be a string or a file-like object) |
| is fed into the underlying parser. |
| |
| sgmllib will process most bad HTML, and the BeautifulSoup |
| class has some tricks for dealing with some HTML that kills |
| sgmllib, but Beautiful Soup can nonetheless choke or lose data |
| if your data uses self-closing tags or declarations |
| incorrectly. |
| |
| By default, Beautiful Soup uses regexes to sanitize input, |
| avoiding the vast majority of these problems. If the problems |
| don't apply to you, pass in False for markupMassage, and |
| you'll get better performance. |
| |
| The default parser massage techniques fix the two most common |
| instances of invalid HTML that choke sgmllib: |
| |
| <br/> (No space between name of closing tag and tag close) |
| <! --Comment--> (Extraneous whitespace in declaration) |
| |
| You can pass in a custom list of (RE object, replace method) |
| tuples to get Beautiful Soup to scrub your input the way you |
| want.""" |
| |
| self.parseOnlyThese = parseOnlyThese |
| self.fromEncoding = fromEncoding |
| self.smartQuotesTo = smartQuotesTo |
| self.convertEntities = convertEntities |
| # Set the rules for how we'll deal with the entities we |
| # encounter |
| if self.convertEntities: |
| # It doesn't make sense to convert encoded characters to |
| # entities even while you're converting entities to Unicode. |
| # Just convert it all to Unicode. |
| self.smartQuotesTo = None |
| if convertEntities == self.HTML_ENTITIES: |
| self.convertXMLEntities = False |
| self.convertHTMLEntities = True |
| self.escapeUnrecognizedEntities = True |
| elif convertEntities == self.XHTML_ENTITIES: |
| self.convertXMLEntities = True |
| self.convertHTMLEntities = True |
| self.escapeUnrecognizedEntities = False |
| elif convertEntities == self.XML_ENTITIES: |
| self.convertXMLEntities = True |
| self.convertHTMLEntities = False |
| self.escapeUnrecognizedEntities = False |
| else: |
| self.convertXMLEntities = False |
| self.convertHTMLEntities = False |
| self.escapeUnrecognizedEntities = False |
| |
| self.instanceSelfClosingTags = buildTagMap(None, selfClosingTags) |
| SGMLParser.__init__(self) |
| |
| if hasattr(markup, 'read'): # It's a file-type object. |
| markup = markup.read() |
| self.markup = markup |
| self.markupMassage = markupMassage |
| try: |
| self._feed(isHTML=isHTML) |
| except StopParsing: |
| pass |
| self.markup = None # The markup can now be GCed |
| |
| def convert_charref(self, name): |
| """This method fixes a bug in Python's SGMLParser.""" |
| try: |
| n = int(name) |
| except ValueError: |
| return |
| if not 0 <= n <= 127 : # ASCII ends at 127, not 255 |
| return |
| return self.convert_codepoint(n) |
| |
| def _feed(self, inDocumentEncoding=None, isHTML=False): |
| # Convert the document to Unicode. |
| markup = self.markup |
| if isinstance(markup, unicode): |
| if not hasattr(self, 'originalEncoding'): |
| self.originalEncoding = None |
| else: |
| dammit = UnicodeDammit\ |
| (markup, [self.fromEncoding, inDocumentEncoding], |
| smartQuotesTo=self.smartQuotesTo, isHTML=isHTML) |
| markup = dammit.unicode |
| self.originalEncoding = dammit.originalEncoding |
| self.declaredHTMLEncoding = dammit.declaredHTMLEncoding |
| if markup: |
| if self.markupMassage: |
| if not hasattr(self.markupMassage, "__iter__"): |
| self.markupMassage = self.MARKUP_MASSAGE |
| for fix, m in self.markupMassage: |
| markup = fix.sub(m, markup) |
| # TODO: We get rid of markupMassage so that the |
| # soup object can be deepcopied later on. Some |
| # Python installations can't copy regexes. If anyone |
| # was relying on the existence of markupMassage, this |
| # might cause problems. |
| del(self.markupMassage) |
| self.reset() |
| |
| SGMLParser.feed(self, markup) |
| # Close out any unfinished strings and close all the open tags. |
| self.endData() |
| while self.currentTag.name != self.ROOT_TAG_NAME: |
| self.popTag() |
| |
| def __getattr__(self, methodName): |
| """This method routes method call requests to either the SGMLParser |
| superclass or the Tag superclass, depending on the method name.""" |
| #print "__getattr__ called on %s.%s" % (self.__class__, methodName) |
| |
| if methodName.startswith('start_') or methodName.startswith('end_') \ |
| or methodName.startswith('do_'): |
| return SGMLParser.__getattr__(self, methodName) |
| elif not methodName.startswith('__'): |
| return Tag.__getattr__(self, methodName) |
| else: |
| raise AttributeError |
| |
| def isSelfClosingTag(self, name): |
| """Returns true iff the given string is the name of a |
| self-closing tag according to this parser.""" |
| return self.SELF_CLOSING_TAGS.has_key(name) \ |
| or self.instanceSelfClosingTags.has_key(name) |
| |
| def reset(self): |
| Tag.__init__(self, self, self.ROOT_TAG_NAME) |
| self.hidden = 1 |
| SGMLParser.reset(self) |
| self.currentData = [] |
| self.currentTag = None |
| self.tagStack = [] |
| self.quoteStack = [] |
| self.pushTag(self) |
| |
| def popTag(self): |
| tag = self.tagStack.pop() |
| |
| #print "Pop", tag.name |
| if self.tagStack: |
| self.currentTag = self.tagStack[-1] |
| return self.currentTag |
| |
| def pushTag(self, tag): |
| #print "Push", tag.name |
| if self.currentTag: |
| self.currentTag.contents.append(tag) |
| self.tagStack.append(tag) |
| self.currentTag = self.tagStack[-1] |
| |
| def endData(self, containerClass=NavigableString): |
| if self.currentData: |
| currentData = u''.join(self.currentData) |
| if (currentData.translate(self.STRIP_ASCII_SPACES) == '' and |
| not set([tag.name for tag in self.tagStack]).intersection( |
| self.PRESERVE_WHITESPACE_TAGS)): |
| if '\n' in currentData: |
| currentData = '\n' |
| else: |
| currentData = ' ' |
| self.currentData = [] |
| if self.parseOnlyThese and len(self.tagStack) <= 1 and \ |
| (not self.parseOnlyThese.text or \ |
| not self.parseOnlyThese.search(currentData)): |
| return |
| o = containerClass(currentData) |
| o.setup(self.currentTag, self.previous) |
| if self.previous: |
| self.previous.next = o |
| self.previous = o |
| self.currentTag.contents.append(o) |
| |
| |
| def _popToTag(self, name, inclusivePop=True): |
| """Pops the tag stack up to and including the most recent |
| instance of the given tag. If inclusivePop is false, pops the tag |
| stack up to but *not* including the most recent instqance of |
| the given tag.""" |
| #print "Popping to %s" % name |
| if name == self.ROOT_TAG_NAME: |
| return |
| |
| numPops = 0 |
| mostRecentTag = None |
| for i in range(len(self.tagStack)-1, 0, -1): |
| if name == self.tagStack[i].name: |
| numPops = len(self.tagStack)-i |
| break |
| if not inclusivePop: |
| numPops = numPops - 1 |
| |
| for i in range(0, numPops): |
| mostRecentTag = self.popTag() |
| return mostRecentTag |
| |
| def _smartPop(self, name): |
| |
| """We need to pop up to the previous tag of this type, unless |
| one of this tag's nesting reset triggers comes between this |
| tag and the previous tag of this type, OR unless this tag is a |
| generic nesting trigger and another generic nesting trigger |
| comes between this tag and the previous tag of this type. |
| |
| Examples: |
| <p>Foo<b>Bar *<p>* should pop to 'p', not 'b'. |
| <p>Foo<table>Bar *<p>* should pop to 'table', not 'p'. |
| <p>Foo<table><tr>Bar *<p>* should pop to 'tr', not 'p'. |
| |
| <li><ul><li> *<li>* should pop to 'ul', not the first 'li'. |
| <tr><table><tr> *<tr>* should pop to 'table', not the first 'tr' |
| <td><tr><td> *<td>* should pop to 'tr', not the first 'td' |
| """ |
| |
| nestingResetTriggers = self.NESTABLE_TAGS.get(name) |
| isNestable = nestingResetTriggers != None |
| isResetNesting = self.RESET_NESTING_TAGS.has_key(name) |
| popTo = None |
| inclusive = True |
| for i in range(len(self.tagStack)-1, 0, -1): |
| p = self.tagStack[i] |
| if (not p or p.name == name) and not isNestable: |
| #Non-nestable tags get popped to the top or to their |
| #last occurance. |
| popTo = name |
| break |
| if (nestingResetTriggers is not None |
| and p.name in nestingResetTriggers) \ |
| or (nestingResetTriggers is None and isResetNesting |
| and self.RESET_NESTING_TAGS.has_key(p.name)): |
| |
| #If we encounter one of the nesting reset triggers |
| #peculiar to this tag, or we encounter another tag |
| #that causes nesting to reset, pop up to but not |
| #including that tag. |
| popTo = p.name |
| inclusive = False |
| break |
| p = p.parent |
| if popTo: |
| self._popToTag(popTo, inclusive) |
| |
| def unknown_starttag(self, name, attrs, selfClosing=0): |
| #print "Start tag %s: %s" % (name, attrs) |
| if self.quoteStack: |
| #This is not a real tag. |
| #print "<%s> is not real!" % name |
| attrs = ''.join([' %s="%s"' % (x, y) for x, y in attrs]) |
| self.handle_data('<%s%s>' % (name, attrs)) |
| return |
| self.endData() |
| |
| if not self.isSelfClosingTag(name) and not selfClosing: |
| self._smartPop(name) |
| |
| if self.parseOnlyThese and len(self.tagStack) <= 1 \ |
| and (self.parseOnlyThese.text or not self.parseOnlyThese.searchTag(name, attrs)): |
| return |
| |
| tag = Tag(self, name, attrs, self.currentTag, self.previous) |
| if self.previous: |
| self.previous.next = tag |
| self.previous = tag |
| self.pushTag(tag) |
| if selfClosing or self.isSelfClosingTag(name): |
| self.popTag() |
| if name in self.QUOTE_TAGS: |
| #print "Beginning quote (%s)" % name |
| self.quoteStack.append(name) |
| self.literal = 1 |
| return tag |
| |
| def unknown_endtag(self, name): |
| #print "End tag %s" % name |
| if self.quoteStack and self.quoteStack[-1] != name: |
| #This is not a real end tag. |
| #print "</%s> is not real!" % name |
| self.handle_data('</%s>' % name) |
| return |
| self.endData() |
| self._popToTag(name) |
| if self.quoteStack and self.quoteStack[-1] == name: |
| self.quoteStack.pop() |
| self.literal = (len(self.quoteStack) > 0) |
| |
| def handle_data(self, data): |
| self.currentData.append(data) |
| |
| def _toStringSubclass(self, text, subclass): |
| """Adds a certain piece of text to the tree as a NavigableString |
| subclass.""" |
| self.endData() |
| self.handle_data(text) |
| self.endData(subclass) |
| |
| def handle_pi(self, text): |
| """Handle a processing instruction as a ProcessingInstruction |
| object, possibly one with a %SOUP-ENCODING% slot into which an |
| encoding will be plugged later.""" |
| if text[:3] == "xml": |
| text = u"xml version='1.0' encoding='%SOUP-ENCODING%'" |
| self._toStringSubclass(text, ProcessingInstruction) |
| |
| def handle_comment(self, text): |
| "Handle comments as Comment objects." |
| self._toStringSubclass(text, Comment) |
| |
| def handle_charref(self, ref): |
| "Handle character references as data." |
| if self.convertEntities: |
| data = unichr(int(ref)) |
| else: |
| data = '&#%s;' % ref |
| self.handle_data(data) |
| |
| def handle_entityref(self, ref): |
| """Handle entity references as data, possibly converting known |
| HTML and/or XML entity references to the corresponding Unicode |
| characters.""" |
| data = None |
| if self.convertHTMLEntities: |
| try: |
| data = unichr(name2codepoint[ref]) |
| except KeyError: |
| pass |
| |
| if not data and self.convertXMLEntities: |
| data = self.XML_ENTITIES_TO_SPECIAL_CHARS.get(ref) |
| |
| if not data and self.convertHTMLEntities and \ |
| not self.XML_ENTITIES_TO_SPECIAL_CHARS.get(ref): |
| # TODO: We've got a problem here. We're told this is |
| # an entity reference, but it's not an XML entity |
| # reference or an HTML entity reference. Nonetheless, |
| # the logical thing to do is to pass it through as an |
| # unrecognized entity reference. |
| # |
| # Except: when the input is "&carol;" this function |
| # will be called with input "carol". When the input is |
| # "AT&T", this function will be called with input |
| # "T". We have no way of knowing whether a semicolon |
| # was present originally, so we don't know whether |
| # this is an unknown entity or just a misplaced |
| # ampersand. |
| # |
| # The more common case is a misplaced ampersand, so I |
| # escape the ampersand and omit the trailing semicolon. |
| data = "&%s" % ref |
| if not data: |
| # This case is different from the one above, because we |
| # haven't already gone through a supposedly comprehensive |
| # mapping of entities to Unicode characters. We might not |
| # have gone through any mapping at all. So the chances are |
| # very high that this is a real entity, and not a |
| # misplaced ampersand. |
| data = "&%s;" % ref |
| self.handle_data(data) |
| |
| def handle_decl(self, data): |
| "Handle DOCTYPEs and the like as Declaration objects." |
| self._toStringSubclass(data, Declaration) |
| |
| def parse_declaration(self, i): |
| """Treat a bogus SGML declaration as raw data. Treat a CDATA |
| declaration as a CData object.""" |
| j = None |
| if self.rawdata[i:i+9] == '<![CDATA[': |
| k = self.rawdata.find(']]>', i) |
| if k == -1: |
| k = len(self.rawdata) |
| data = self.rawdata[i+9:k] |
| j = k+3 |
| self._toStringSubclass(data, CData) |
| else: |
| try: |
| j = SGMLParser.parse_declaration(self, i) |
| except SGMLParseError: |
| toHandle = self.rawdata[i:] |
| self.handle_data(toHandle) |
| j = i + len(toHandle) |
| return j |
| |
| class BeautifulSoup(BeautifulStoneSoup): |
| |
| """This parser knows the following facts about HTML: |
| |
| * Some tags have no closing tag and should be interpreted as being |
| closed as soon as they are encountered. |
| |
| * The text inside some tags (ie. 'script') may contain tags which |
| are not really part of the document and which should be parsed |
| as text, not tags. If you want to parse the text as tags, you can |
| always fetch it and parse it explicitly. |
| |
| * Tag nesting rules: |
| |
| Most tags can't be nested at all. For instance, the occurance of |
| a <p> tag should implicitly close the previous <p> tag. |
| |
| <p>Para1<p>Para2 |
| should be transformed into: |
| <p>Para1</p><p>Para2 |
| |
| Some tags can be nested arbitrarily. For instance, the occurance |
| of a <blockquote> tag should _not_ implicitly close the previous |
| <blockquote> tag. |
| |
| Alice said: <blockquote>Bob said: <blockquote>Blah |
| should NOT be transformed into: |
| Alice said: <blockquote>Bob said: </blockquote><blockquote>Blah |
| |
| Some tags can be nested, but the nesting is reset by the |
| interposition of other tags. For instance, a <tr> tag should |
| implicitly close the previous <tr> tag within the same <table>, |
| but not close a <tr> tag in another table. |
| |
| <table><tr>Blah<tr>Blah |
| should be transformed into: |
| <table><tr>Blah</tr><tr>Blah |
| but, |
| <tr>Blah<table><tr>Blah |
| should NOT be transformed into |
| <tr>Blah<table></tr><tr>Blah |
| |
| Differing assumptions about tag nesting rules are a major source |
| of problems with the BeautifulSoup class. If BeautifulSoup is not |
| treating as nestable a tag your page author treats as nestable, |
| try ICantBelieveItsBeautifulSoup, MinimalSoup, or |
| BeautifulStoneSoup before writing your own subclass.""" |
| |
| def __init__(self, *args, **kwargs): |
| if not kwargs.has_key('smartQuotesTo'): |
| kwargs['smartQuotesTo'] = self.HTML_ENTITIES |
| kwargs['isHTML'] = True |
| BeautifulStoneSoup.__init__(self, *args, **kwargs) |
| |
| SELF_CLOSING_TAGS = buildTagMap(None, |
| ('br' , 'hr', 'input', 'img', 'meta', |
| 'spacer', 'link', 'frame', 'base', 'col')) |
| |
| PRESERVE_WHITESPACE_TAGS = set(['pre', 'textarea']) |
| |
| QUOTE_TAGS = {'script' : None, 'textarea' : None} |
| |
| #According to the HTML standard, each of these inline tags can |
| #contain another tag of the same type. Furthermore, it's common |
| #to actually use these tags this way. |
| NESTABLE_INLINE_TAGS = ('span', 'font', 'q', 'object', 'bdo', 'sub', 'sup', |
| 'center') |
| |
| #According to the HTML standard, these block tags can contain |
| #another tag of the same type. Furthermore, it's common |
| #to actually use these tags this way. |
| NESTABLE_BLOCK_TAGS = ('blockquote', 'div', 'fieldset', 'ins', 'del') |
| |
| #Lists can contain other lists, but there are restrictions. |
| NESTABLE_LIST_TAGS = { 'ol' : [], |
| 'ul' : [], |
| 'li' : ['ul', 'ol'], |
| 'dl' : [], |
| 'dd' : ['dl'], |
| 'dt' : ['dl'] } |
| |
| #Tables can contain other tables, but there are restrictions. |
| NESTABLE_TABLE_TAGS = {'table' : [], |
| 'tr' : ['table', 'tbody', 'tfoot', 'thead'], |
| 'td' : ['tr'], |
| 'th' : ['tr'], |
| 'thead' : ['table'], |
| 'tbody' : ['table'], |
| 'tfoot' : ['table'], |
| } |
| |
| NON_NESTABLE_BLOCK_TAGS = ('address', 'form', 'p', 'pre') |
| |
| #If one of these tags is encountered, all tags up to the next tag of |
| #this type are popped. |
| RESET_NESTING_TAGS = buildTagMap(None, NESTABLE_BLOCK_TAGS, 'noscript', |
| NON_NESTABLE_BLOCK_TAGS, |
| NESTABLE_LIST_TAGS, |
| NESTABLE_TABLE_TAGS) |
| |
| NESTABLE_TAGS = buildTagMap([], NESTABLE_INLINE_TAGS, NESTABLE_BLOCK_TAGS, |
| NESTABLE_LIST_TAGS, NESTABLE_TABLE_TAGS) |
| |
| # Used to detect the charset in a META tag; see start_meta |
| CHARSET_RE = re.compile("((^|;)\s*charset=)([^;]*)", re.M) |
| |
| def start_meta(self, attrs): |
| """Beautiful Soup can detect a charset included in a META tag, |
| try to convert the document to that charset, and re-parse the |
| document from the beginning.""" |
| httpEquiv = None |
| contentType = None |
| contentTypeIndex = None |
| tagNeedsEncodingSubstitution = False |
| |
| for i in range(0, len(attrs)): |
| key, value = attrs[i] |
| key = key.lower() |
| if key == 'http-equiv': |
| httpEquiv = value |
| elif key == 'content': |
| contentType = value |
| contentTypeIndex = i |
| |
| if httpEquiv and contentType: # It's an interesting meta tag. |
| match = self.CHARSET_RE.search(contentType) |
| if match: |
| if (self.declaredHTMLEncoding is not None or |
| self.originalEncoding == self.fromEncoding): |
| # An HTML encoding was sniffed while converting |
| # the document to Unicode, or an HTML encoding was |
| # sniffed during a previous pass through the |
| # document, or an encoding was specified |
| # explicitly and it worked. Rewrite the meta tag. |
| def rewrite(match): |
| return match.group(1) + "%SOUP-ENCODING%" |
| newAttr = self.CHARSET_RE.sub(rewrite, contentType) |
| attrs[contentTypeIndex] = (attrs[contentTypeIndex][0], |
| newAttr) |
| tagNeedsEncodingSubstitution = True |
| else: |
| # This is our first pass through the document. |
| # Go through it again with the encoding information. |
| newCharset = match.group(3) |
| if newCharset and newCharset != self.originalEncoding: |
| self.declaredHTMLEncoding = newCharset |
| self._feed(self.declaredHTMLEncoding) |
| raise StopParsing |
| pass |
| tag = self.unknown_starttag("meta", attrs) |
| if tag and tagNeedsEncodingSubstitution: |
| tag.containsSubstitutions = True |
| |
| class StopParsing(Exception): |
| pass |
| |
| class ICantBelieveItsBeautifulSoup(BeautifulSoup): |
| |
| """The BeautifulSoup class is oriented towards skipping over |
| common HTML errors like unclosed tags. However, sometimes it makes |
| errors of its own. For instance, consider this fragment: |
| |
| <b>Foo<b>Bar</b></b> |
| |
| This is perfectly valid (if bizarre) HTML. However, the |
| BeautifulSoup class will implicitly close the first b tag when it |
| encounters the second 'b'. It will think the author wrote |
| "<b>Foo<b>Bar", and didn't close the first 'b' tag, because |
| there's no real-world reason to bold something that's already |
| bold. When it encounters '</b></b>' it will close two more 'b' |
| tags, for a grand total of three tags closed instead of two. This |
| can throw off the rest of your document structure. The same is |
| true of a number of other tags, listed below. |
| |
| It's much more common for someone to forget to close a 'b' tag |
| than to actually use nested 'b' tags, and the BeautifulSoup class |
| handles the common case. This class handles the not-co-common |
| case: where you can't believe someone wrote what they did, but |
| it's valid HTML and BeautifulSoup screwed up by assuming it |
| wouldn't be.""" |
| |
| I_CANT_BELIEVE_THEYRE_NESTABLE_INLINE_TAGS = \ |
| ('em', 'big', 'i', 'small', 'tt', 'abbr', 'acronym', 'strong', |
| 'cite', 'code', 'dfn', 'kbd', 'samp', 'strong', 'var', 'b', |
| 'big') |
| |
| I_CANT_BELIEVE_THEYRE_NESTABLE_BLOCK_TAGS = ('noscript',) |
| |
| NESTABLE_TAGS = buildTagMap([], BeautifulSoup.NESTABLE_TAGS, |
| I_CANT_BELIEVE_THEYRE_NESTABLE_BLOCK_TAGS, |
| I_CANT_BELIEVE_THEYRE_NESTABLE_INLINE_TAGS) |
| |
| class MinimalSoup(BeautifulSoup): |
| """The MinimalSoup class is for parsing HTML that contains |
| pathologically bad markup. It makes no assumptions about tag |
| nesting, but it does know which tags are self-closing, that |
| <script> tags contain Javascript and should not be parsed, that |
| META tags may contain encoding information, and so on. |
| |
| This also makes it better for subclassing than BeautifulStoneSoup |
| or BeautifulSoup.""" |
| |
| RESET_NESTING_TAGS = buildTagMap('noscript') |
| NESTABLE_TAGS = {} |
| |
| class BeautifulSOAP(BeautifulStoneSoup): |
| """This class will push a tag with only a single string child into |
| the tag's parent as an attribute. The attribute's name is the tag |
| name, and the value is the string child. An example should give |
| the flavor of the change: |
| |
| <foo><bar>baz</bar></foo> |
| => |
| <foo bar="baz"><bar>baz</bar></foo> |
| |
| You can then access fooTag['bar'] instead of fooTag.barTag.string. |
| |
| This is, of course, useful for scraping structures that tend to |
| use subelements instead of attributes, such as SOAP messages. Note |
| that it modifies its input, so don't print the modified version |
| out. |
| |
| I'm not sure how many people really want to use this class; let me |
| know if you do. Mainly I like the name.""" |
| |
| def popTag(self): |
| if len(self.tagStack) > 1: |
| tag = self.tagStack[-1] |
| parent = self.tagStack[-2] |
| parent._getAttrMap() |
| if (isinstance(tag, Tag) and len(tag.contents) == 1 and |
| isinstance(tag.contents[0], NavigableString) and |
| not parent.attrMap.has_key(tag.name)): |
| parent[tag.name] = tag.contents[0] |
| BeautifulStoneSoup.popTag(self) |
| |
| #Enterprise class names! It has come to our attention that some people |
| #think the names of the Beautiful Soup parser classes are too silly |
| #and "unprofessional" for use in enterprise screen-scraping. We feel |
| #your pain! For such-minded folk, the Beautiful Soup Consortium And |
| #All-Night Kosher Bakery recommends renaming this file to |
| #"RobustParser.py" (or, in cases of extreme enterprisiness, |
| #"RobustParserBeanInterface.class") and using the following |
| #enterprise-friendly class aliases: |
| class RobustXMLParser(BeautifulStoneSoup): |
| pass |
| class RobustHTMLParser(BeautifulSoup): |
| pass |
| class RobustWackAssHTMLParser(ICantBelieveItsBeautifulSoup): |
| pass |
| class RobustInsanelyWackAssHTMLParser(MinimalSoup): |
| pass |
| class SimplifyingSOAPParser(BeautifulSOAP): |
| pass |
| |
| ###################################################### |
| # |
| # Bonus library: Unicode, Dammit |
| # |
| # This class forces XML data into a standard format (usually to UTF-8 |
| # or Unicode). It is heavily based on code from Mark Pilgrim's |
| # Universal Feed Parser. It does not rewrite the XML or HTML to |
| # reflect a new encoding: that happens in BeautifulStoneSoup.handle_pi |
| # (XML) and BeautifulSoup.start_meta (HTML). |
| |
| # Autodetects character encodings. |
| # Download from http://chardet.feedparser.org/ |
| try: |
| import chardet |
| # import chardet.constants |
| # chardet.constants._debug = 1 |
| except ImportError: |
| chardet = None |
| |
| # cjkcodecs and iconv_codec make Python know about more character encodings. |
| # Both are available from http://cjkpython.i18n.org/ |
| # They're built in if you use Python 2.4. |
| try: |
| import cjkcodecs.aliases |
| except ImportError: |
| pass |
| try: |
| import iconv_codec |
| except ImportError: |
| pass |
| |
| class UnicodeDammit: |
| """A class for detecting the encoding of a *ML document and |
| converting it to a Unicode string. If the source encoding is |
| windows-1252, can replace MS smart quotes with their HTML or XML |
| equivalents.""" |
| |
| # This dictionary maps commonly seen values for "charset" in HTML |
| # meta tags to the corresponding Python codec names. It only covers |
| # values that aren't in Python's aliases and can't be determined |
| # by the heuristics in find_codec. |
| CHARSET_ALIASES = { "macintosh" : "mac-roman", |
| "x-sjis" : "shift-jis" } |
| |
| def __init__(self, markup, overrideEncodings=[], |
| smartQuotesTo='xml', isHTML=False): |
| self.declaredHTMLEncoding = None |
| self.markup, documentEncoding, sniffedEncoding = \ |
| self._detectEncoding(markup, isHTML) |
| self.smartQuotesTo = smartQuotesTo |
| self.triedEncodings = [] |
| if markup == '' or isinstance(markup, unicode): |
| self.originalEncoding = None |
| self.unicode = unicode(markup) |
| return |
| |
| u = None |
| for proposedEncoding in overrideEncodings: |
| u = self._convertFrom(proposedEncoding) |
| if u: break |
| if not u: |
| for proposedEncoding in (documentEncoding, sniffedEncoding): |
| u = self._convertFrom(proposedEncoding) |
| if u: break |
| |
| # If no luck and we have auto-detection library, try that: |
| if not u and chardet and not isinstance(self.markup, unicode): |
| u = self._convertFrom(chardet.detect(self.markup)['encoding']) |
| |
| # As a last resort, try utf-8 and windows-1252: |
| if not u: |
| for proposed_encoding in ("utf-8", "windows-1252"): |
| u = self._convertFrom(proposed_encoding) |
| if u: break |
| |
| self.unicode = u |
| if not u: self.originalEncoding = None |
| |
| def _subMSChar(self, orig): |
| """Changes a MS smart quote character to an XML or HTML |
| entity.""" |
| sub = self.MS_CHARS.get(orig) |
| if isinstance(sub, tuple): |
| if self.smartQuotesTo == 'xml': |
| sub = '&#x%s;' % sub[1] |
| else: |
| sub = '&%s;' % sub[0] |
| return sub |
| |
| def _convertFrom(self, proposed): |
| proposed = self.find_codec(proposed) |
| if not proposed or proposed in self.triedEncodings: |
| return None |
| self.triedEncodings.append(proposed) |
| markup = self.markup |
| |
| # Convert smart quotes to HTML if coming from an encoding |
| # that might have them. |
| if self.smartQuotesTo and proposed.lower() in("windows-1252", |
| "iso-8859-1", |
| "iso-8859-2"): |
| markup = re.compile("([\x80-\x9f])").sub \ |
| (lambda(x): self._subMSChar(x.group(1)), |
| markup) |
| |
| try: |
| # print "Trying to convert document to %s" % proposed |
| u = self._toUnicode(markup, proposed) |
| self.markup = u |
| self.originalEncoding = proposed |
| except Exception, e: |
| # print "That didn't work!" |
| # print e |
| return None |
| #print "Correct encoding: %s" % proposed |
| return self.markup |
| |
| def _toUnicode(self, data, encoding): |
| '''Given a string and its encoding, decodes the string into Unicode. |
| %encoding is a string recognized by encodings.aliases''' |
| |
| # strip Byte Order Mark (if present) |
| if (len(data) >= 4) and (data[:2] == '\xfe\xff') \ |
| and (data[2:4] != '\x00\x00'): |
| encoding = 'utf-16be' |
| data = data[2:] |
| elif (len(data) >= 4) and (data[:2] == '\xff\xfe') \ |
| and (data[2:4] != '\x00\x00'): |
| encoding = 'utf-16le' |
| data = data[2:] |
| elif data[:3] == '\xef\xbb\xbf': |
| encoding = 'utf-8' |
| data = data[3:] |
| elif data[:4] == '\x00\x00\xfe\xff': |
| encoding = 'utf-32be' |
| data = data[4:] |
| elif data[:4] == '\xff\xfe\x00\x00': |
| encoding = 'utf-32le' |
| data = data[4:] |
| newdata = unicode(data, encoding) |
| return newdata |
| |
| def _detectEncoding(self, xml_data, isHTML=False): |
| """Given a document, tries to detect its XML encoding.""" |
| xml_encoding = sniffed_xml_encoding = None |
| try: |
| if xml_data[:4] == '\x4c\x6f\xa7\x94': |
| # EBCDIC |
| xml_data = self._ebcdic_to_ascii(xml_data) |
| elif xml_data[:4] == '\x00\x3c\x00\x3f': |
| # UTF-16BE |
| sniffed_xml_encoding = 'utf-16be' |
| xml_data = unicode(xml_data, 'utf-16be').encode('utf-8') |
| elif (len(xml_data) >= 4) and (xml_data[:2] == '\xfe\xff') \ |
| and (xml_data[2:4] != '\x00\x00'): |
| # UTF-16BE with BOM |
| sniffed_xml_encoding = 'utf-16be' |
| xml_data = unicode(xml_data[2:], 'utf-16be').encode('utf-8') |
| elif xml_data[:4] == '\x3c\x00\x3f\x00': |
| # UTF-16LE |
| sniffed_xml_encoding = 'utf-16le' |
| xml_data = unicode(xml_data, 'utf-16le').encode('utf-8') |
| elif (len(xml_data) >= 4) and (xml_data[:2] == '\xff\xfe') and \ |
| (xml_data[2:4] != '\x00\x00'): |
| # UTF-16LE with BOM |
| sniffed_xml_encoding = 'utf-16le' |
| xml_data = unicode(xml_data[2:], 'utf-16le').encode('utf-8') |
| elif xml_data[:4] == '\x00\x00\x00\x3c': |
| # UTF-32BE |
| sniffed_xml_encoding = 'utf-32be' |
| xml_data = unicode(xml_data, 'utf-32be').encode('utf-8') |
| elif xml_data[:4] == '\x3c\x00\x00\x00': |
| # UTF-32LE |
| sniffed_xml_encoding = 'utf-32le' |
| xml_data = unicode(xml_data, 'utf-32le').encode('utf-8') |
| elif xml_data[:4] == '\x00\x00\xfe\xff': |
| # UTF-32BE with BOM |
| sniffed_xml_encoding = 'utf-32be' |
| xml_data = unicode(xml_data[4:], 'utf-32be').encode('utf-8') |
| elif xml_data[:4] == '\xff\xfe\x00\x00': |
| # UTF-32LE with BOM |
| sniffed_xml_encoding = 'utf-32le' |
| xml_data = unicode(xml_data[4:], 'utf-32le').encode('utf-8') |
| elif xml_data[:3] == '\xef\xbb\xbf': |
| # UTF-8 with BOM |
| sniffed_xml_encoding = 'utf-8' |
| xml_data = unicode(xml_data[3:], 'utf-8').encode('utf-8') |
| else: |
| sniffed_xml_encoding = 'ascii' |
| pass |
| except: |
| xml_encoding_match = None |
| xml_encoding_match = re.compile( |
| '^<\?.*encoding=[\'"](.*?)[\'"].*\?>').match(xml_data) |
| if not xml_encoding_match and isHTML: |
| regexp = re.compile('<\s*meta[^>]+charset=([^>]*?)[;\'">]', re.I) |
| xml_encoding_match = regexp.search(xml_data) |
| if xml_encoding_match is not None: |
| xml_encoding = xml_encoding_match.groups()[0].lower() |
| if isHTML: |
| self.declaredHTMLEncoding = xml_encoding |
| if sniffed_xml_encoding and \ |
| (xml_encoding in ('iso-10646-ucs-2', 'ucs-2', 'csunicode', |
| 'iso-10646-ucs-4', 'ucs-4', 'csucs4', |
| 'utf-16', 'utf-32', 'utf_16', 'utf_32', |
| 'utf16', 'u16')): |
| xml_encoding = sniffed_xml_encoding |
| return xml_data, xml_encoding, sniffed_xml_encoding |
| |
| |
| def find_codec(self, charset): |
| return self._codec(self.CHARSET_ALIASES.get(charset, charset)) \ |
| or (charset and self._codec(charset.replace("-", ""))) \ |
| or (charset and self._codec(charset.replace("-", "_"))) \ |
| or charset |
| |
| def _codec(self, charset): |
| if not charset: return charset |
| codec = None |
| try: |
| codecs.lookup(charset) |
| codec = charset |
| except (LookupError, ValueError): |
| pass |
| return codec |
| |
| EBCDIC_TO_ASCII_MAP = None |
| def _ebcdic_to_ascii(self, s): |
| c = self.__class__ |
| if not c.EBCDIC_TO_ASCII_MAP: |
| emap = (0,1,2,3,156,9,134,127,151,141,142,11,12,13,14,15, |
| 16,17,18,19,157,133,8,135,24,25,146,143,28,29,30,31, |
| 128,129,130,131,132,10,23,27,136,137,138,139,140,5,6,7, |
| 144,145,22,147,148,149,150,4,152,153,154,155,20,21,158,26, |
| 32,160,161,162,163,164,165,166,167,168,91,46,60,40,43,33, |
| 38,169,170,171,172,173,174,175,176,177,93,36,42,41,59,94, |
| 45,47,178,179,180,181,182,183,184,185,124,44,37,95,62,63, |
| 186,187,188,189,190,191,192,193,194,96,58,35,64,39,61,34, |
| 195,97,98,99,100,101,102,103,104,105,196,197,198,199,200, |
| 201,202,106,107,108,109,110,111,112,113,114,203,204,205, |
| 206,207,208,209,126,115,116,117,118,119,120,121,122,210, |
| 211,212,213,214,215,216,217,218,219,220,221,222,223,224, |
| 225,226,227,228,229,230,231,123,65,66,67,68,69,70,71,72, |
| 73,232,233,234,235,236,237,125,74,75,76,77,78,79,80,81, |
| 82,238,239,240,241,242,243,92,159,83,84,85,86,87,88,89, |
| 90,244,245,246,247,248,249,48,49,50,51,52,53,54,55,56,57, |
| 250,251,252,253,254,255) |
| import string |
| c.EBCDIC_TO_ASCII_MAP = string.maketrans( \ |
| ''.join(map(chr, range(256))), ''.join(map(chr, emap))) |
| return s.translate(c.EBCDIC_TO_ASCII_MAP) |
| |
| MS_CHARS = { '\x80' : ('euro', '20AC'), |
| '\x81' : ' ', |
| '\x82' : ('sbquo', '201A'), |
| '\x83' : ('fnof', '192'), |
| '\x84' : ('bdquo', '201E'), |
| '\x85' : ('hellip', '2026'), |
| '\x86' : ('dagger', '2020'), |
| '\x87' : ('Dagger', '2021'), |
| '\x88' : ('circ', '2C6'), |
| '\x89' : ('permil', '2030'), |
| '\x8A' : ('Scaron', '160'), |
| '\x8B' : ('lsaquo', '2039'), |
| '\x8C' : ('OElig', '152'), |
| '\x8D' : '?', |
| '\x8E' : ('#x17D', '17D'), |
| '\x8F' : '?', |
| '\x90' : '?', |
| '\x91' : ('lsquo', '2018'), |
| '\x92' : ('rsquo', '2019'), |
| '\x93' : ('ldquo', '201C'), |
| '\x94' : ('rdquo', '201D'), |
| '\x95' : ('bull', '2022'), |
| '\x96' : ('ndash', '2013'), |
| '\x97' : ('mdash', '2014'), |
| '\x98' : ('tilde', '2DC'), |
| '\x99' : ('trade', '2122'), |
| '\x9a' : ('scaron', '161'), |
| '\x9b' : ('rsaquo', '203A'), |
| '\x9c' : ('oelig', '153'), |
| '\x9d' : '?', |
| '\x9e' : ('#x17E', '17E'), |
| '\x9f' : ('Yuml', ''),} |
| |
| ####################################################################### |
| |
| |
| #By default, act as an HTML pretty-printer. |
| if __name__ == '__main__': |
| import sys |
| soup = BeautifulSoup(sys.stdin) |
| print soup.prettify() |