diff --git a/django/templatetags/cache.py b/django/templatetags/cache.py
new file mode 100644
index 0000000000..4436b15d6e
--- /dev/null
+++ b/django/templatetags/cache.py
@@ -0,0 +1,57 @@
+from django.template import Library, Node, TemplateSyntaxError
+from django.template import resolve_variable
+from django.core.cache import cache
+from django.utils.encoding import force_unicode
+
+register = Library()
+
+class CacheNode(Node):
+ def __init__(self, nodelist, expire_time, fragment_name, vary_on):
+ self.nodelist = nodelist
+ self.expire_time = expire_time
+ self.fragment_name = fragment_name
+ self.vary_on = vary_on
+
+ def render(self, context):
+ # Build a unicode key for this fragment and all vary-on's.
+ cache_key = u':'.join([self.fragment_name] + \
+ [force_unicode(resolve_variable(var, context)) for var in self.vary_on])
+ value = cache.get(cache_key)
+ if value is None:
+ value = self.nodelist.render(context)
+ cache.set(cache_key, value, self.expire_time)
+ return value
+
+def do_cache(parser, token):
+ """
+ This will cache the contents of a template fragment for a given amount
+ of time.
+
+ Usage::
+
+ {% load cache %}
+ {% cache [expire_time] [fragment_name] %}
+ .. some expensive processing ..
+ {% endcache %}
+
+ This tag also supports varying by a list of arguments::
+
+ {% load cache %}
+ {% cache [expire_time] [fragment_name] [var1] [var2] .. %}
+ .. some expensive processing ..
+ {% endcache %}
+
+ Each unique set of arguments will result in a unique cache entry.
+ """
+ nodelist = parser.parse(('endcache',))
+ parser.delete_first_token()
+ tokens = token.contents.split()
+ if len(tokens) < 3:
+ raise TemplateSyntaxError(u"'%r' tag requires at least 2 arguments." % tokens[0])
+ try:
+ expire_time = int(tokens[1])
+ except ValueError:
+ raise TemplateSyntaxError(u"First argument to '%r' must be an integer (got '%s')." % (tokens[0], tokens[1]))
+ return CacheNode(nodelist, expire_time, tokens[2], tokens[3:])
+
+register.tag('cache', do_cache)
diff --git a/django/utils/checksums.py b/django/utils/checksums.py
new file mode 100644
index 0000000000..970f563f38
--- /dev/null
+++ b/django/utils/checksums.py
@@ -0,0 +1,22 @@
+"""
+Common checksum routines (used in multiple localflavor/ cases, for example).
+"""
+
+__all__ = ['luhn',]
+
+LUHN_ODD_LOOKUP = (0, 2, 4, 6, 8, 1, 3, 5, 7, 9) # sum_of_digits(index * 2)
+
+def luhn(candidate):
+ """
+ Checks a candidate number for validity according to the Luhn
+ algorithm (used in validation of, for example, credit cards).
+ Both numeric and string candidates are accepted.
+ """
+ if not isinstance(candidate, basestring):
+ candidate = str(candidate)
+ try:
+ evens = sum([int(c) for c in candidate[-1::-2]])
+ odds = sum([LUHN_ODD_LOOKUP[int(c)] for c in candidate[-2::-2]])
+ return ((evens + odds) % 10 == 0)
+ except ValueError: # Raised if an int conversion fails
+ return False
diff --git a/tests/regressiontests/forms/localflavor/es.py b/tests/regressiontests/forms/localflavor/es.py
new file mode 100644
index 0000000000..f149aa9cbe
--- /dev/null
+++ b/tests/regressiontests/forms/localflavor/es.py
@@ -0,0 +1,343 @@
+# -*- coding: utf-8 -*-
+# Tests for the contrib/localflavor/ ES form fields.
+
+tests = r"""
+# ESPostalCodeField ##############################################################
+
+ESPostalCodeField validates that data is a five-digit spanish postal code.
+>>> from django.contrib.localflavor.es.forms import ESPostalCodeField
+>>> f = ESPostalCodeField()
+>>> f.clean('08028')
+u'08028'
+>>> f.clean('28080')
+u'28080'
+>>> f.clean('53001')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('0801')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('080001')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('00999')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('08 01')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('08A01')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('')
+Traceback (most recent call last):
+...
+ValidationError: [u'This field is required.']
+
+>>> f = ESPostalCodeField(required=False)
+>>> f.clean('08028')
+u'08028'
+>>> f.clean('28080')
+u'28080'
+>>> f.clean('53001')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('0801')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('080001')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('00999')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('08 01')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('08A01')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid postal code in the range and format 01XXX - 52XXX.']
+>>> f.clean('')
+u''
+
+# ESPhoneNumberField ##############################################################
+
+ESPhoneNumberField validates that data is a nine-digit spanish phone number.
+>>> from django.contrib.localflavor.es.forms import ESPhoneNumberField
+>>> f = ESPhoneNumberField()
+>>> f.clean('650010101')
+u'650010101'
+>>> f.clean('931234567')
+u'931234567'
+>>> f.clean('800123123')
+u'800123123'
+>>> f.clean('555555555')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('789789789')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('99123123')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('9999123123')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('')
+Traceback (most recent call last):
+...
+ValidationError: [u'This field is required.']
+
+>>> f = ESPhoneNumberField(required=False)
+>>> f.clean('650010101')
+u'650010101'
+>>> f.clean('931234567')
+u'931234567'
+>>> f.clean('800123123')
+u'800123123'
+>>> f.clean('555555555')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('789789789')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('99123123')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('9999123123')
+Traceback (most recent call last):
+...
+ValidationError: [u'Enter a valid phone number in one of the formats 6XXXXXXXX, 8XXXXXXXX or 9XXXXXXXX.']
+>>> f.clean('')
+u''
+
+# ESIdentityCardNumberField ##############################################################
+
+ESIdentityCardNumberField validates that data is a identification spanish code for companies or individuals (CIF, NIF or NIE).
+>>> from django.contrib.localflavor.es.forms import ESIdentityCardNumberField
+>>> f = ESIdentityCardNumberField()
+>>> f.clean('78699688J')
+'78699688J'
+>>> f.clean('78699688-J')
+'78699688J'
+>>> f.clean('78699688 J')
+'78699688J'
+>>> f.clean('78699688 j')
+'78699688J'
+>>> f.clean('78699688T')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for NIF.']
+>>> f.clean('X0901797J')
+'X0901797J'
+>>> f.clean('X-6124387-Q')
+'X6124387Q'
+>>> f.clean('X 0012953 G')
+'X0012953G'
+>>> f.clean('x-3287690-r')
+'X3287690R'
+>>> f.clean('t-03287690r')
+'T03287690R'
+>>> f.clean('X-03287690')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid NIF, NIE, or CIF.']
+>>> f.clean('X-03287690-T')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for NIE.']
+>>> f.clean('B38790911')
+'B38790911'
+>>> f.clean('B-3879091A')
+'B3879091A'
+>>> f.clean('B 38790917')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for CIF.']
+>>> f.clean('B 38790911')
+'B38790911'
+>>> f.clean('P-3900800-H')
+'P3900800H'
+>>> f.clean('P 39008008')
+'P39008008'
+>>> f.clean('C-28795565')
+'C28795565'
+>>> f.clean('C 2879556E')
+'C2879556E'
+>>> f.clean('C28795567')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for CIF.']
+>>> f.clean('I38790911')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid NIF, NIE, or CIF.']
+>>> f.clean('78699688-2')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid NIF, NIE, or CIF.']
+>>> f.clean('')
+Traceback (most recent call last):
+...
+ValidationError: [u'This field is required.']
+
+>>> f = ESIdentityCardNumberField(required=False)
+>>> f.clean('78699688J')
+'78699688J'
+>>> f.clean('78699688-J')
+'78699688J'
+>>> f.clean('78699688 J')
+'78699688J'
+>>> f.clean('78699688 j')
+'78699688J'
+>>> f.clean('78699688T')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for NIF.']
+>>> f.clean('X0901797J')
+'X0901797J'
+>>> f.clean('X-6124387-Q')
+'X6124387Q'
+>>> f.clean('X 0012953 G')
+'X0012953G'
+>>> f.clean('x-3287690-r')
+'X3287690R'
+>>> f.clean('t-03287690r')
+'T03287690R'
+>>> f.clean('X-03287690')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid NIF, NIE, or CIF.']
+>>> f.clean('X-03287690-T')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for NIE.']
+>>> f.clean('B38790911')
+'B38790911'
+>>> f.clean('B-3879091A')
+'B3879091A'
+>>> f.clean('B 38790917')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for CIF.']
+>>> f.clean('B 38790911')
+'B38790911'
+>>> f.clean('P-3900800-H')
+'P3900800H'
+>>> f.clean('P 39008008')
+'P39008008'
+>>> f.clean('C-28795565')
+'C28795565'
+>>> f.clean('C 2879556E')
+'C2879556E'
+>>> f.clean('C28795567')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for CIF.']
+>>> f.clean('I38790911')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid NIF, NIE, or CIF.']
+>>> f.clean('78699688-2')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid NIF, NIE, or CIF.']
+>>> f.clean('')
+u''
+
+# ESCCCField ##############################################################
+
+ESCCCField validates that data is a spanish bank account number (codigo cuenta cliente).
+
+>>> from django.contrib.localflavor.es.forms import ESCCCField
+>>> f = ESCCCField()
+>>> f.clean('20770338793100254321')
+'20770338793100254321'
+>>> f.clean('2077 0338 79 3100254321')
+'2077 0338 79 3100254321'
+>>> f.clean('2077-0338-79-3100254321')
+'2077-0338-79-3100254321'
+>>> f.clean('2077.0338.79.3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid bank account number in format XXXX-XXXX-XX-XXXXXXXXXX.']
+>>> f.clean('2077-0338-78-3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for bank account number.']
+>>> f.clean('2077-0338-89-3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for bank account number.']
+>>> f.clean('2077-03-3879-3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid bank account number in format XXXX-XXXX-XX-XXXXXXXXXX.']
+>>> f.clean('')
+Traceback (most recent call last):
+...
+ValidationError: [u'This field is required.']
+
+>>> f = ESCCCField(required=False)
+>>> f.clean('20770338793100254321')
+'20770338793100254321'
+>>> f.clean('2077 0338 79 3100254321')
+'2077 0338 79 3100254321'
+>>> f.clean('2077-0338-79-3100254321')
+'2077-0338-79-3100254321'
+>>> f.clean('2077.0338.79.3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid bank account number in format XXXX-XXXX-XX-XXXXXXXXXX.']
+>>> f.clean('2077-0338-78-3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for bank account number.']
+>>> f.clean('2077-0338-89-3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Invalid checksum for bank account number.']
+>>> f.clean('2077-03-3879-3100254321')
+Traceback (most recent call last):
+...
+ValidationError: [u'Please enter a valid bank account number in format XXXX-XXXX-XX-XXXXXXXXXX.']
+>>> f.clean('')
+u''
+
+# ESRegionSelect ##############################################################
+
+ESRegionSelect is a Select widget that uses a list of Spain regions as its choices.
+>>> from django.contrib.localflavor.es.forms import ESRegionSelect
+>>> w = ESRegionSelect()
+>>> w.render('regions', 'CT')
+u''
+
+# ESProvincenSelect ##############################################################
+
+ESProvinceSelect is a Select widget that uses a list of Spain provinces as its choices.
+>>> from django.contrib.localflavor.es.forms import ESProvinceSelect
+>>> w = ESProvinceSelect()
+>>> w.render('provinces', '08')
+u''
+
+"""
+