#11113: add a new "html5" dictionary containing the named character r…

…eferences defined by the HTML5 standard and the equivalent Unicode character(s) to the html.entities module.

Doc/library/html.entities.rst

@@ -9,13 +9,25 @@
 
 --------------
 
-This module defines three dictionaries, ``name2codepoint``, ``codepoint2name``,
-and ``entitydefs``. ``entitydefs`` is used to provide the :attr:`entitydefs`
+This module defines four dictionaries, :data:`html5`,
+:data:`name2codepoint`, :data:`codepoint2name`, and :data:`entitydefs`.
+:data:`entitydefs` is used to provide the :attr:`entitydefs`
 attribute of the :class:`html.parser.HTMLParser` class.  The definition provided
 here contains all the entities defined by XHTML 1.0 that can be handled using
 simple textual substitution in the Latin-1 character set (ISO-8859-1).
 
 
+.. data:: html5
+
+   A dictionary that maps HTML5 named character references [#]_ to the
+   equivalent Unicode character(s), e.g. ``html5['gt;'] == '>'``.
+   Note that the trailing semicolon is included in the name (e.g. ``'gt;'``),
+   however some of the names are accepted by the standard even without the
+   semicolon: in this case the name is present with and without the ``';'``.
+
+   .. versionadded:: 3.3
+
+
 .. data:: entitydefs
 
    A dictionary mapping XHTML 1.0 entity definitions to their replacement text in
@@ -30,3 +42,8 @@ simple textual substitution in the Latin-1 character set (ISO-8859-1).
 .. data:: codepoint2name
 
    A dictionary that maps Unicode codepoints to HTML entity names.
+
+
+.. rubric:: Footnotes
+
+.. [#] See http://www.w3.org/TR/html5/named-character-references.html