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# Copyright (C) 2000-2008 by the Free Software Foundation, Inc.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
# USA.
import os
import sys
import time
import string
import gettext
import mailman.messages
from mailman.SafeDict import SafeDict
from mailman.configuration import config
_translation = None
_missing = object()
MESSAGES_DIR = os.path.dirname(mailman.messages.__file__)
class Template(string.Template):
idpattern = r'[_a-z][_a-z0-9.]*'
class attrdict(dict):
def __getitem__(self, key):
parts = key.split('.')
value = super(attrdict, self).__getitem__(parts.pop(0))
while parts:
value = getattr(value, parts.pop(0), _missing)
if value is _missing:
raise KeyError(key)
return value
def set_language(language=None):
global _translation
if language is not None:
language = [language]
try:
_translation = gettext.translation('mailman', MESSAGES_DIR, language)
except IOError:
# The selected language was not installed in messages, so fall back to
# untranslated English.
_translation = gettext.NullTranslations()
def get_translation():
return _translation
def set_translation(translation):
global _translation
_translation = translation
class using_language(object):
"""Context manager for Python 2.5's `with` statement."""
def __init__(self, language):
self._language = language
self._old_translation = None
def __enter__(self):
self._old_translation = _translation
set_language(self._language)
def __exit__(self, exc_type, exc_val, exc_tb):
global _translation
_translation = self._old_translation
# Set up the global translation based on environment variables. Mostly used
# for command line scripts.
if _translation is None:
_translation = gettext.NullTranslations()
def _(s):
if s == '':
return u''
assert s, 'Cannot translate: %s' % s
# Do translation of the given string into the current language, and do PEP
# 292 style $-string interpolation into the resulting string.
#
# This lets you write something like:
#
# now = time.ctime(time.time())
# print _('The current time is: $now')
#
# and have it Just Work. Note that the lookup order for keys in the
# original string is 1) locals dictionary, 2) globals dictionary.
#
# Get the frame of the caller.
frame = sys._getframe(1)
# A `safe' dictionary is used so we won't get an exception if there's a
# missing key in the dictionary.
d = frame.f_globals.copy()
d.update(frame.f_locals)
# Mailman must be unicode safe internally (i.e. all strings inside Mailman
# must be unicodes). The translation service is one boundary to the
# outside world, so to honor this constraint, make sure that all strings
# to come out of _() are unicodes, even if the translated string or
# dictionary values are 8-bit strings.
tns = _translation.ugettext(s)
charset = _translation.charset() or 'us-ascii'
for k, v in d.items():
if isinstance(v, str):
d[k] = unicode(v, charset, 'replace')
translated_string = Template(tns).safe_substitute(attrdict(d))
if isinstance(translated_string, str):
translated_string = unicode(translated_string, charset)
return translated_string
def ctime(date):
# Don't make these module globals since we have to do runtime translation
# of the strings anyway.
daysofweek = [
_('Mon'), _('Tue'), _('Wed'), _('Thu'),
_('Fri'), _('Sat'), _('Sun')
]
months = [
'',
_('Jan'), _('Feb'), _('Mar'), _('Apr'), _('May'), _('Jun'),
_('Jul'), _('Aug'), _('Sep'), _('Oct'), _('Nov'), _('Dec')
]
tzname = _('Server Local Time')
if isinstance(date, str):
try:
year, mon, day, hh, mm, ss, wday, ydat, dst = time.strptime(date)
if dst in (0,1):
tzname = time.tzname[dst]
else:
# MAS: No exception but dst = -1 so try
return ctime(time.mktime((year, mon, day, hh, mm, ss, wday,
ydat, dst)))
except (ValueError, AttributeError):
try:
wday, mon, day, hms, year = date.split()
hh, mm, ss = hms.split(':')
year = int(year)
day = int(day)
hh = int(hh)
mm = int(mm)
ss = int(ss)
except ValueError:
return date
else:
for i in range(0, 7):
wconst = (1999, 1, 1, 0, 0, 0, i, 1, 0)
if wday.lower() == time.strftime('%a', wconst).lower():
wday = i
break
for i in range(1, 13):
mconst = (1999, i, 1, 0, 0, 0, 0, 1, 0)
if mon.lower() == time.strftime('%b', mconst).lower():
mon = i
break
else:
year, mon, day, hh, mm, ss, wday, yday, dst = time.localtime(date)
if dst in (0, 1):
tzname = time.tzname[dst]
wday = daysofweek[wday]
mon = months[mon]
return _('%(wday)s %(mon)s %(day)2i %(hh)02i:%(mm)02i:%(ss)02i '
'%(tzname)s %(year)04i')
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