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1 # i18n.py - internationalization support for mercurial
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2 #
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3 # Copyright 2005, 2006 Matt Mackall <mpm@selenic.com>
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4 #
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5 # This software may be used and distributed according to the terms of the
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6 # GNU General Public License version 2, incorporated herein by reference.
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7
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8 import encoding
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9 import gettext, sys, os
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10
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11 # modelled after templater.templatepath:
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12 if hasattr(sys, 'frozen'):
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13 module = sys.executable
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14 else:
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15 module = __file__
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16
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17 base = os.path.dirname(module)
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18 for dir in ('.', '..'):
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19 localedir = os.path.normpath(os.path.join(base, dir, 'locale'))
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20 if os.path.isdir(localedir):
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21 break
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22
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23 t = gettext.translation('hg', localedir, fallback=True)
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24
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25 def gettext(message):
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26 """Translate message.
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27
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28 The message is looked up in the catalog to get a Unicode string,
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29 which is encoded in the local encoding before being returned.
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30
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31 Important: message is restricted to characters in the encoding
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32 given by sys.getdefaultencoding() which is most likely 'ascii'.
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33 """
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34 # If message is None, t.ugettext will return u'None' as the
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35 # translation whereas our callers expect us to return None.
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36 if message is None:
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37 return message
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38
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39 # We cannot just run the text through encoding.tolocal since that
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40 # leads to infinite recursion when encoding._encoding is invalid.
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41 try:
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42 u = t.ugettext(message)
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43 return u.encode(encoding.encoding, "replace")
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44 except LookupError:
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45 return message
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46
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47 _ = gettext
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48
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