# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1368748053 -7200
# Node ID d3df73c1c28d6d85e754dad10f1dcfb182ecf991
# Parent  53a942fac7e8f63e9f5f6965f7620c6c519d8bbc
Added RFC 2822 datetime parsing with help from the email.utils module.

diff -r 53a942fac7e8 -r d3df73c1c28d DateSupport.py
--- a/DateSupport.py	Tue May 14 23:12:48 2013 +0200
+++ b/DateSupport.py	Fri May 17 01:47:33 2013 +0200
@@ -6,6 +6,7 @@
     @license: GNU GPL (v2 or later), see COPYING.txt for details.
 """
 
+from email.utils import parsedate_tz
 import calendar
 import datetime
 import re
@@ -593,9 +594,7 @@
         dt = self.as_olson_datetime()
         if dt:
             seconds = dt.utcoffset().seconds + dt.utcoffset().days * 24 * 3600
-            hours = abs(seconds) / 3600
-            minutes = (abs(seconds) % 3600) / 60
-            return sign(seconds) * hours, sign(seconds) * minutes
+            return getHoursAndMinutes(seconds)
 
         # Otherwise return None.
 
@@ -910,6 +909,24 @@
     else:
         return None
 
+def getDateTimeFromRFC2822(s):
+
+    """
+    Parse the RFC 2822 format datetime string 's', returning a datetime object.
+    """
+
+    data = parsedate_tz(s)
+    offset = data[9]
+    return DateTime(data[:6] + ("%02d:%02d" % getHoursAndMinutes(offset),))
+
+def getHoursAndMinutes(seconds):
+
+    "Return an (hours, minutes) tuple for the given number of 'seconds'."
+
+    hours = abs(seconds) / 3600
+    minutes = (abs(seconds) % 3600) / 60
+    return sign(seconds) * hours, sign(seconds) * minutes
+
 def getDateStrings(s):
 
     "Parse the string 's', extracting and returning all date strings."
diff -r 53a942fac7e8 -r d3df73c1c28d README.txt
--- a/README.txt	Tue May 14 23:12:48 2013 +0200
+++ b/README.txt	Fri May 17 01:47:33 2013 +0200
@@ -72,6 +72,7 @@
   * Fixed the ISO 8601 representations of datetimes and added ISO 8601
     datetime parsing support.
   * Fixed the time zone information associated with page revisions.
+  * Added RFC 2822 datetime parsing with help from the email.utils module.
 
 New in MoinSupport 0.3 (Changes since MoinSupport 0.2)
 ------------------------------------------------------