Fixed #33661 -- Corrected Catalan date-format localization.

Changed DATE_FORMAT, DATETIME_FORMAT and MONTH_DAY_FORMAT
to use E placeholder (Month, locale specific alternative)
to handle both “de gener” and contracted “d’abril” cases.

Thanks to Ferran Jovell for review.

django/conf/locale/ca/LC_MESSAGES/django.po

@@ -1071,51 +1071,51 @@ msgstr "Des."
 
 msgctxt "alt. month"
 msgid "January"
-msgstr "gener"
+msgstr "de gener"
 
 msgctxt "alt. month"
 msgid "February"
-msgstr "febrer"
+msgstr "de febrer"
 
 msgctxt "alt. month"
 msgid "March"
-msgstr "març"
+msgstr "de març"
 
 msgctxt "alt. month"
 msgid "April"
-msgstr "abril"
+msgstr "d'abril"
 
 msgctxt "alt. month"
 msgid "May"
-msgstr "maig"
+msgstr "de maig"
 
 msgctxt "alt. month"
 msgid "June"
-msgstr "juny"
+msgstr "de juny"
 
 msgctxt "alt. month"
 msgid "July"
-msgstr "juliol"
+msgstr "de juliol"
 
 msgctxt "alt. month"
 msgid "August"
-msgstr "agost"
+msgstr "d'agost"
 
 msgctxt "alt. month"
 msgid "September"
-msgstr "setembre"
+msgstr "de setembre"
 
 msgctxt "alt. month"
 msgid "October"
-msgstr "octubre"
+msgstr "d'octubre"
 
 msgctxt "alt. month"
 msgid "November"
-msgstr "novembre"
+msgstr "de novembre"
 
 msgctxt "alt. month"
 msgid "December"
-msgstr "desembre"
+msgstr "de desembre"
 
 msgid "This is not a valid IPv6 address."
 msgstr "Aquesta no és una adreça IPv6 vàlida."

django/conf/locale/ca/formats.py

@@ -2,11 +2,11 @@
 #
 # The *_FORMAT strings use the Django date format syntax,
 # see https://docs.djangoproject.com/en/dev/ref/templates/builtins/#date
-DATE_FORMAT = r"j \d\e F \d\e Y"
+DATE_FORMAT = r"j E \d\e Y"
 TIME_FORMAT = "G:i"
-DATETIME_FORMAT = r"j \d\e F \d\e Y \a \l\e\s G:i"
+DATETIME_FORMAT = r"j E \d\e Y \a \l\e\s G:i"
 YEAR_MONTH_FORMAT = r"F \d\e\l Y"
-MONTH_DAY_FORMAT = r"j \d\e F"
+MONTH_DAY_FORMAT = r"j E"
 SHORT_DATE_FORMAT = "d/m/Y"
 SHORT_DATETIME_FORMAT = "d/m/Y G:i"
 FIRST_DAY_OF_WEEK = 1  # Monday

tests/i18n/tests.py

@@ -865,11 +865,14 @@ class FormattingTests(SimpleTestCase):
         self.maxDiff = 3000
         # Catalan locale
         with translation.override("ca", deactivate=True):
-            self.assertEqual(r"j \d\e F \d\e Y", get_format("DATE_FORMAT"))
+            self.assertEqual(r"j E \d\e Y", get_format("DATE_FORMAT"))
             self.assertEqual(1, get_format("FIRST_DAY_OF_WEEK"))
             self.assertEqual(",", get_format("DECIMAL_SEPARATOR"))
             self.assertEqual("10:15", time_format(self.t))
             self.assertEqual("31 de desembre de 2009", date_format(self.d))
+            self.assertEqual(
+                "1 d'abril de 2009", date_format(datetime.date(2009, 4, 1))
+            )
             self.assertEqual(
                 "desembre del 2009", date_format(self.d, "YEAR_MONTH_FORMAT")
             )