Fixed #4960 -- Added "strip" option to CharField

docs/ref/forms/fields.txt

@@ -361,7 +361,7 @@ For each field, we describe the default widget used if you don't specify
       Otherwise, all inputs are valid.
     * Error message keys: ``required``, ``max_length``, ``min_length``
 
-    Has two optional arguments for validation:
+    Has three optional arguments for validation:
 
     .. attribute:: max_length
     .. attribute:: min_length
@@ -369,6 +369,13 @@ For each field, we describe the default widget used if you don't specify
     If provided, these arguments ensure that the string is at most or at least
     the given length.
 
+    .. attribute:: strip
+
+       .. versionadded:: 1.9
+
+       If ``True`` (default), the value will be stripped of leading and
+       trailing whitespace.
+
 ``ChoiceField``
 ~~~~~~~~~~~~~~~
 
@@ -824,8 +831,15 @@ For each field, we describe the default widget used if you don't specify
         A regular expression specified either as a string or a compiled regular
         expression object.
 
-    Also takes ``max_length`` and ``min_length``, which work just as they do for
-    ``CharField``.
+    Also takes ``max_length``, ``min_length``, and ``strip``, which work just
+    as they do for ``CharField``.
+
+    .. attribute:: strip
+
+        .. versionadded:: 1.9
+
+        Defaults to ``False``. If enabled, stripping will be applied before the
+        regex validation.
 
     .. deprecated:: 1.8
 

docs/releases/1.9.txt

@@ -302,6 +302,11 @@ Forms
 * You can now :ref:`specify keyword arguments <custom-formset-form-kwargs>`
   that you want to pass to the constructor of forms in a formset.
 
+* :class:`~django.forms.CharField` now accepts a
+  :attr:`~django.forms.CharField.strip` argument to strip input data of leading
+  and trailing whitespace.  As this defaults to ``True`` this is different
+  behavior from previous releases.
+
 Generic Views
 ^^^^^^^^^^^^^
 
@@ -552,7 +557,7 @@ Database backend API
   SQLite backend to add time lookups (hour, minute, second) to
   :class:`~django.db.models.TimeField`, and may be needed by third-party
   database backends.
-  
+
 * The ``DatabaseOperations.datetime_cast_sql()`` method (not to be confused
   with ``DatabaseOperations.datetime_cast_date_sql()`` mentioned above)
   has been removed. This method served to format dates on Oracle long
@@ -822,6 +827,10 @@ Miscellaneous
   be serialized contains any control characters not allowed in the XML 1.0
   standard, the serialization will fail with a :exc:`ValueError`.
 
+* :class:`~django.forms.CharField` now strips input of leading and trailing
+  whitespace by default. This can be disabled by setting the new
+  :attr:`~django.forms.CharField.strip` argument to ``False``.
+
 .. _deprecated-features-1.9:
 
 Features deprecated in 1.9