Revert 243980 "Docserver: Support markdown for HTML content."

trunk/src/third_party/markdown/util.py

Index: trunk/src/third_party/markdown/util.py
===================================================================
--- trunk/src/third_party/markdown/util.py	(revision 244009)
+++ trunk/src/third_party/markdown/util.py	(working copy)
@@ -1,136 +0,0 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-import re
-import sys
-
-
-"""
-Python 3 Stuff
-=============================================================================
-"""
-PY3 = sys.version_info[0] == 3
-
-if PY3:
-    string_type = str
-    text_type = str
-    int2str = chr
-else:
-    string_type = basestring
-    text_type = unicode
-    int2str = unichr
-
-
-"""
-Constants you might want to modify
------------------------------------------------------------------------------
-"""
-
-BLOCK_LEVEL_ELEMENTS = re.compile("^(p|div|h[1-6]|blockquote|pre|table|dl|ol|ul"
-                                  "|script|noscript|form|fieldset|iframe|math"
-                                  "|hr|hr/|style|li|dt|dd|thead|tbody"
-                                  "|tr|th|td|section|footer|header|group|figure"
-                                  "|figcaption|aside|article|canvas|output"
-                                  "|progress|video)$", re.IGNORECASE)
-# Placeholders
-STX = '\u0002'  # Use STX ("Start of text") for start-of-placeholder
-ETX = '\u0003'  # Use ETX ("End of text") for end-of-placeholder
-INLINE_PLACEHOLDER_PREFIX = STX+"klzzwxh:"
-INLINE_PLACEHOLDER = INLINE_PLACEHOLDER_PREFIX + "%s" + ETX
-INLINE_PLACEHOLDER_RE = re.compile(INLINE_PLACEHOLDER % r'([0-9]{4})')
-AMP_SUBSTITUTE = STX+"amp"+ETX
-
-"""
-Constants you probably do not need to change
------------------------------------------------------------------------------
-"""
-
-RTL_BIDI_RANGES = ( ('\u0590', '\u07FF'),
-                     # Hebrew (0590-05FF), Arabic (0600-06FF),
-                     # Syriac (0700-074F), Arabic supplement (0750-077F),
-                     # Thaana (0780-07BF), Nko (07C0-07FF).
-                    ('\u2D30', '\u2D7F'), # Tifinagh
-                    )
-
-# Extensions should use "markdown.util.etree" instead of "etree" (or do `from
-# markdown.util import etree`).  Do not import it by yourself.
-
-try: # Is the C implemenation of ElementTree available?
-    import xml.etree.cElementTree as etree
-    from xml.etree.ElementTree import Comment
-    # Serializers (including ours) test with non-c Comment
-    etree.test_comment = Comment
-    if etree.VERSION < "1.0.5":
-        raise RuntimeError("cElementTree version 1.0.5 or higher is required.")
-except (ImportError, RuntimeError):
-    # Use the Python implementation of ElementTree?
-    import xml.etree.ElementTree as etree
-    if etree.VERSION < "1.1":
-        raise RuntimeError("ElementTree version 1.1 or higher is required")
-
-
-"""
-AUXILIARY GLOBAL FUNCTIONS
-=============================================================================
-"""
-
-
-def isBlockLevel(tag):
-    """Check if the tag is a block level HTML tag."""
-    if isinstance(tag, string_type):
-        return BLOCK_LEVEL_ELEMENTS.match(tag)
-    # Some ElementTree tags are not strings, so return False.
-    return False
-
-"""
-MISC AUXILIARY CLASSES
-=============================================================================
-"""
-
-class AtomicString(text_type):
-    """A string which should not be further processed."""
-    pass
-
-
-class Processor(object):
-    def __init__(self, markdown_instance=None):
-        if markdown_instance:
-            self.markdown = markdown_instance
-
-
-class HtmlStash(object):
-    """
-    This class is used for stashing HTML objects that we extract
-    in the beginning and replace with place-holders.
-    """
-
-    def __init__ (self):
-        """ Create a HtmlStash. """
-        self.html_counter = 0 # for counting inline html segments
-        self.rawHtmlBlocks=[]
-
-    def store(self, html, safe=False):
-        """
-        Saves an HTML segment for later reinsertion.  Returns a
-        placeholder string that needs to be inserted into the
-        document.
-
-        Keyword arguments:
-
-        * html: an html segment
-        * safe: label an html segment as safe for safemode
-
-        Returns : a placeholder string
-
-        """
-        self.rawHtmlBlocks.append((html, safe))
-        placeholder = self.get_placeholder(self.html_counter)
-        self.html_counter += 1
-        return placeholder
-
-    def reset(self):
-        self.html_counter = 0
-        self.rawHtmlBlocks = []
-
-    def get_placeholder(self, key):
-        return "%swzxhzdk:%d%s" % (STX, key, ETX)
-