Reverted 'regroup' template tag changes from [6956], as they caused bug

#6271, which affects one of my sites. I don't have time to inspect the #6271 patch, so I'm reverting this change in the interim, to fix the bug immediately.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6996 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/template/defaulttags.py

@@ -924,18 +924,20 @@ def regroup(parser, token):
         {% regroup people|dictsort:"gender" by gender as grouped %}
 
     """
-    bits = token.contents.split()
-    if len(bits) != 6:
+    firstbits = token.contents.split(None, 3)
+    if len(firstbits) != 4:
         raise TemplateSyntaxError, "'regroup' tag takes five arguments"
-    target = parser.compile_filter(bits[1])
-    if bits[2] != 'by':
+    target = parser.compile_filter(firstbits[1])
+    if firstbits[2] != 'by':
         raise TemplateSyntaxError("second argument to 'regroup' tag must be 'by'")
-    if bits[4] != 'as':
+    lastbits_reversed = firstbits[3][::-1].split(None, 2)
+    if lastbits_reversed[1][::-1] != 'as':
         raise TemplateSyntaxError("next-to-last argument to 'regroup' tag must"
                                   " be 'as'")
 
-    expression = parser.compile_filter(bits[3])
-    var_name = bits[5]
+    expression = parser.compile_filter(lastbits_reversed[2][::-1])
+
+    var_name = lastbits_reversed[0][::-1]
     return RegroupNode(target, expression, var_name)
 regroup = register.tag(regroup)
 

tests/regressiontests/templates/tests.py

@@ -809,16 +809,6 @@ def get_template_tests(self):
                           '{% endfor %},' + \
                           '{% endfor %}',
                           {}, ''),
-
-            # Test syntax.
-            'regroup03': ('{% regroup data by bar as %}', {},
-                          template.TemplateSyntaxError),
-            'regroup04': ('{% regroup data by bar thisaintright grouped %}', {},
-                          template.TemplateSyntaxError),
-            'regroup05': ('{% regroup data thisaintright bar as grouped %}', {},
-                          template.TemplateSyntaxError),
-            'regroup06': ('{% regroup data by bar as grouped toomanyargs %}', {},
-                          template.TemplateSyntaxError),
 
             ### TEMPLATETAG TAG #######################################################
             'templatetag01': ('{% templatetag openblock %}', {}, '{%'),