1 files changed, 75 insertions, 0 deletions

diff --git a/Mailman/i18n.py b/Mailman/i18n.py
new file mode 100644
index 000000000..d00c75947
--- /dev/null
+++ b/Mailman/i18n.py
@@ -0,0 +1,75 @@
+# Copyright (C) 2000 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+import sys
+import gettext
+
+from Mailman import mm_cfg
+from Mailman.Utils import SafeDict
+
+
+
+_translation = gettext.NullTranslations()
+
+def set_language(language):
+    global _translation
+    _translation = gettext.translation('mailman', mm_cfg.LOCALEDIR, [language])
+
+
+
+def _x(s, frame):
+    # Do translation of the given string into the current language, and do
+    # Ping-string interpolation into the resulting string.
+    #
+    # This lets you write something like:
+    #
+    #     now = time.ctime(time.time())
+    #     print _('The current time is: %(now)s')
+    #
+    # and have it Just Work.  Note that the lookup order for keys in the
+    # original string is 1) locals dictionary, 2) globals dictionary.
+    #
+    # A `safe' dictionary is used so we won't get an exception if there's a
+    # missing key in the dictionary.
+    dict = SafeDict(frame.f_globals.copy())
+    dict.update(frame.f_locals)
+    # Translate the string, then interpolate into it.
+    return _translation.gettext(s) % dict
+    
+
+
+# Public version, to be used by most modules.  There are three ways to get the
+# stack frame to serve as the namespace source.  First, we try to use the
+# Python 2.1 extension to the sys module.  If that's not there, we fall back
+# to the optional Mailman enhancement module, and finally use the
+# tried-and-true (but slow) pure Python approach.  The latter should work in
+# every supported version of Python.
+if hasattr(sys, '_getframe'):
+    def _(s):
+        return _x(s, sys._getframe(1))
+else:
+    try:
+        import _mailman
+        def _(s):
+            return _x(s, _mailman._getframe(1))
+    except ImportError:
+        def _(s):
+            exc = 'exc'
+            try: raise exc
+            except exc:
+                # Get one frame up the stack.
+                frame = sys.exc_info()[2].tb_frame.f_back
+            return _x(s, frame)