i18n: merged to [992] from trunk

git-svn-id: http://code.djangoproject.com/svn/django/branches/i18n@993 bcc190cf-cafb-0310-a4f2-bffc1f526a37

3 files changed, 93 insertions, 14 deletions

diff --git a/django/utils/dateformat.py b/django/utils/dateformat.py
index 3620558f09..9913c3f8c4 100644
--- a/django/utils/dateformat.py
+++ b/django/utils/dateformat.py
@@ -12,8 +12,9 @@ Usage:
 """
 
 from django.utils.dates import MONTHS, MONTHS_AP, WEEKDAYS
+from django.utils.tzinfo import LocalTimezone
 from calendar import isleap
-import re
+import re, time
 
 re_formatchars = re.compile(r'(?<!\\)([aABdDfFgGhHiIjlLmMnNOPrsStTUwWyYzZ])')
 re_escaped = re.compile(r'\\(.)')
@@ -40,7 +41,9 @@ class TimeFormat(Formatter):
 
     def A(self):
         "'AM' or 'PM'"
-        return self.a().upper()
+        if self.data.hour > 11:
+            return 'PM'
+        return 'AM'
 
     def B(self):
         "Swatch Internet time"
@@ -100,8 +103,12 @@ class TimeFormat(Formatter):
 class DateFormat(TimeFormat):
     year_days = [None, 0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334]
 
-    def __init__(self, d):
-        self.data = d
+    def __init__(self, dt):
+        # Accepts either a datetime or date object.
+        self.data = dt
+        self.timezone = getattr(dt, 'tzinfo', None)
+        if hasattr(self.data, 'hour') and not self.timezone:
+            self.timezone = LocalTimezone(dt)
 
     def d(self):
         "Day of the month, 2 digits with leading zeros; i.e. '01' to '31'"
@@ -119,6 +126,13 @@ class DateFormat(TimeFormat):
         "'1' if Daylight Savings Time, '0' otherwise."
         raise NotImplementedError
 
+    def I(self):
+        "'1' if Daylight Savings Time, '0' otherwise."
+        if self.timezone.dst(self.data):
+            return '1'
+        else:
+            return '0'
+
     def j(self):
         "Day of the month without leading zeros; i.e. '1' to '31'"
         return self.data.day
@@ -149,11 +163,12 @@ class DateFormat(TimeFormat):
 
     def O(self):
         "Difference to Greenwich time in hours; e.g. '+0200'"
-        raise NotImplementedError
+        tz = self.timezone.utcoffset(self.data)
+        return "%+03d%02d" % (tz.seconds // 3600, (tz.seconds // 60) % 60)
 
     def r(self):
         "RFC 822 formatted date; e.g. 'Thu, 21 Dec 2000 16:01:07 +0200'"
-        raise NotImplementedError
+        return self.format('D, j M Y H:i:s O')
 
     def S(self):
         "English ordinal suffix for the day of the month, 2 characters; i.e. 'st', 'nd', 'rd' or 'th'"
@@ -174,11 +189,15 @@ class DateFormat(TimeFormat):
 
     def T(self):
         "Time zone of this machine; e.g. 'EST' or 'MDT'"
-        raise NotImplementedError
+        name = self.timezone.tzname(self.data)
+        if name is None:
+            name = self.format('O')
+        return name
 
     def U(self):
         "Seconds since the Unix epoch (January 1 1970 00:00:00 GMT)"
-        raise NotImplementedError
+        off = self.timezone.utcoffset(self.data)
+        return int(time.mktime(self.data.timetuple())) + off.seconds * 60
 
     def w(self):
         "Day of the week, numeric, i.e. '0' (Sunday) to '6' (Saturday)"
@@ -229,7 +248,7 @@ class DateFormat(TimeFormat):
         """Time zone offset in seconds (i.e. '-43200' to '43200'). The offset
         for timezones west of UTC is always negative, and for those east of UTC
         is always positive."""
-        raise NotImplementedError
+        return self.timezone.utcoffset(self.data).seconds
 
 def format(value, format_string):
     "Convenience function"
diff --git a/django/utils/timesince.py b/django/utils/timesince.py
index c11cef0342..5b22fde58c 100644
--- a/django/utils/timesince.py
+++ b/django/utils/timesince.py
@@ -1,4 +1,5 @@
-import time, math, datetime
+import datetime, math, time
+from django.utils.tzinfo import LocalTimezone
 
 def timesince(d, now=None):
     """
@@ -6,7 +7,6 @@ def timesince(d, now=None):
     as a nicely formatted string, e.g "10 minutes"
     Adapted from http://blog.natbat.co.uk/archive/2003/Jun/14/time_since
     """
-    original = time.mktime(d.timetuple())
     chunks = (
       (60 * 60 * 24 * 365, 'year'),
       (60 * 60 * 24 * 30, 'month'),
@@ -14,9 +14,17 @@ def timesince(d, now=None):
       (60 * 60, 'hour'),
       (60, 'minute')
     )
-    if not now:
-        now = time.time()
-    since = now - original
+    if now:
+        t = time.mktime(now)
+    else:
+        t = time.localtime()
+    if d.tzinfo:
+        tz = LocalTimezone()
+    else:
+        tz = None
+    now = datetime.datetime(t[0], t[1], t[2], t[3], t[4], t[5], tzinfo=tz)
+    delta = now - d
+    since = delta.days * 24 * 60 * 60 + delta.seconds
     # Crazy iteration syntax because we need i to be current index
     for i, (seconds, name) in zip(range(len(chunks)), chunks):
         count = math.floor(since / seconds)
diff --git a/django/utils/tzinfo.py b/django/utils/tzinfo.py
new file mode 100644
index 0000000000..cc9f028e91
--- /dev/null
+++ b/django/utils/tzinfo.py
@@ -0,0 +1,52 @@
+"Implementation of tzinfo classes for use with datetime.datetime."
+
+import time
+from datetime import timedelta, tzinfo
+
+class FixedOffset(tzinfo):
+    "Fixed offset in minutes east from UTC."
+    def __init__(self, offset):
+        self.__offset = timedelta(minutes=offset)
+        self.__name = "%+03d%02d" % (offset // 60, offset % 60)
+
+    def __repr__(self):
+        return self.__name
+
+    def utcoffset(self, dt):
+        return self.__offset
+
+    def tzname(self, dt):
+        return self.__name
+
+    def dst(self, dt):
+        return timedelta(0)
+
+class LocalTimezone(tzinfo):
+    "Proxy timezone information from time module."
+    def __init__(self, dt):
+        tzinfo.__init__(self, dt)
+        self._tzname = time.tzname[self._isdst(dt)]
+
+    def __repr__(self):
+        return self._tzname
+
+    def utcoffset(self, dt):
+        if self._isdst(dt):
+            return timedelta(seconds=-time.altzone)
+        else:
+            return timedelta(seconds=-time.timezone)
+
+    def dst(self, dt):
+        if self._isdst(dt):
+            return timedelta(seconds=-time.altzone) - timedelta(seconds=-time.timezone)
+        else:
+            return timedelta(0)
+
+    def tzname(self, dt):
+        return time.tzname[self._isdst(dt)]
+
+    def _isdst(self, dt):
+        tt = (dt.year, dt.month, dt.day, dt.hour, dt.minute, dt.second, dt.weekday(), 0, -1)
+        stamp = time.mktime(tt)
+        tt = time.localtime(stamp)
+        return tt.tm_isdst > 0