add hg and python

sys/lib/python/mercurial/i18n.py

@@ -0,0 +1,52 @@
+# i18n.py - internationalization support for mercurial
+#
+# Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
+#
+# This software may be used and distributed according to the terms of the
+# GNU General Public License version 2, incorporated herein by reference.
+
+import encoding
+import gettext, sys, os
+
+# modelled after templater.templatepath:
+if hasattr(sys, 'frozen'):
+    module = sys.executable
+else:
+    module = __file__
+
+base = os.path.dirname(module)
+for dir in ('.', '..'):
+    localedir = os.path.normpath(os.path.join(base, dir, 'locale'))
+    if os.path.isdir(localedir):
+        break
+
+t = gettext.translation('hg', localedir, fallback=True)
+
+def gettext(message):
+    """Translate message.
+
+    The message is looked up in the catalog to get a Unicode string,
+    which is encoded in the local encoding before being returned.
+
+    Important: message is restricted to characters in the encoding
+    given by sys.getdefaultencoding() which is most likely 'ascii'.
+    """
+    # If message is None, t.ugettext will return u'None' as the
+    # translation whereas our callers expect us to return None.
+    if message is None:
+        return message
+
+    u = t.ugettext(message)
+    try:
+        # encoding.tolocal cannot be used since it will first try to
+        # decode the Unicode string. Calling u.decode(enc) really
+        # means u.encode(sys.getdefaultencoding()).decode(enc). Since
+        # the Python encoding defaults to 'ascii', this fails if the
+        # translated string use non-ASCII characters.
+        return u.encode(encoding.encoding, "replace")
+    except LookupError:
+        # An unknown encoding results in a LookupError.
+        return message
+
+_ = gettext
+