1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
|
# Copyright (C) 2000-2009 by the Free Software Foundation, Inc.
#
# This file is part of GNU Mailman.
#
# GNU Mailman 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 3 of the License, or (at your option)
# any later version.
#
# GNU Mailman 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
# GNU Mailman. If not, see <http://www.gnu.org/licenses/>.
"""Internationalization support."""
from __future__ import absolute_import, unicode_literals
__metaclass__ = type
__all__ = [
'Translator',
'_',
'get_translation',
'set_language',
'set_translation',
'using_language',
]
import os
import sys
import time
import string
import gettext
from textwrap import dedent
import mailman.messages
from mailman.utilities.string import expand
_translation = None
_missing = object()
class Template(string.Template):
"""Match any attribute path."""
idpattern = r'[_a-z][_a-z0-9.]*'
class attrdict(dict):
"""Follow attribute paths."""
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_code=None):
"""Set the global translation context from a language code.
:param language_code: The two letter language code to set.
:type language_code: str
"""
messages_dir = os.path.dirname(mailman.messages.__file__)
# pylint: disable-msg=W0603
global _translation
# gettext.translation() API requires None or a sequence.
codes = (None if language_code is None else [language_code])
try:
_translation = gettext.translation('mailman', messages_dir, codes)
except IOError:
# The selected language was not installed in messages, so fall back to
# untranslated English.
_translation = gettext.NullTranslations()
def get_translation():
"""Return the global translation context.
:return: The global translation context.
:rtype: `GNUTranslation`
"""
return _translation
def set_translation(translation):
"""Set the global translation context.
:param translation: The translation context.
:type translation: `GNUTranslation`.
"""
# pylint: disable-msg=W0603
global _translation
_translation = translation
class using_language:
"""Context manager for Python's `with` statement."""
def __init__(self, language_code):
self._language_code = language_code
self._old_translation = None
def __enter__(self):
self._old_translation = _translation
set_language(self._language_code)
# pylint: disable-msg=W0613
def __exit__(self, *exc_info):
# pylint: disable-msg=W0603
global _translation
_translation = self._old_translation
# Do not suppress exceptions.
return False
# Set up the global translation based on environment variables. Mostly used
# for command line scripts.
if _translation is None:
_translation = gettext.NullTranslations()
class Translator:
def __init__(self, dedent=True):
"""Create a translation context.
:param dedent: Whether the input string should be dedented.
:type dedent: bool
"""
self.dedent = dedent
def _(self, original):
"""Translate the string.
:param original: The original string to translate.
:type original: string
:return: The translated string.
:rtype: string
"""
if original == '':
return ''
assert original, 'Cannot translate: {0}'.format(s)
# Because the original string is what the text extractors put into the
# catalog, we must first look up the original unadulterated string in
# the catalog. Use the global translation context for this.
#
# Mailman must be unicode safe internally (i.e. all strings inside
# Mailman are 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(original)
charset = _translation.charset() or 'us-ascii'
# 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.
# pylint: disable-msg=W0212
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.
raw_dict = frame.f_globals.copy()
raw_dict.update(frame.f_locals)
# Python requires ** dictionaries to have str, not unicode keys. For
# our purposes, keys should always be ascii. Values though should be
# unicode.
translated_string = expand(tns, attrdict(raw_dict), Template)
if isinstance(translated_string, str):
translated_string = unicode(translated_string, charset)
# Dedent the string if so desired.
if self.dedent:
translated_string = dedent(translated_string)
return translated_string
# Global defaults.
_ = Translator()._
def ctime(date):
"""Translate a ctime.
:param date: The date to translate.
:type date: str or time float
:return: The translated date.
:rtype: string
"""
# 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')
]
# pylint: disable-msg=W0612
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:
# pylint: disable-msg=W0612
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 $mon $day $hh:$mm:$ss $tzname $year')
|
