Mercurial > hg
annotate mercurial/i18n.py @ 26847:9f16787cbefd
util: drop Python 2.4 compat by directly importing md5 and sha1
There's been a fair amount of cruft here over the years, which we can all
just get rid of now.
author | Siddharth Agarwal <sid0@fb.com> |
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date | Sat, 24 Oct 2015 15:56:16 -0700 |
parents | 2c07c6884394 |
children | 03d1ecbbd81e |
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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 |
10263 | 6 # GNU General Public License version 2 or any later version. |
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7 |
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8 from __future__ import absolute_import |
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9 |
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10 import gettext as gettextmod |
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11 import locale |
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12 import os |
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13 import sys |
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14 |
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15 from . import encoding |
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16 |
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17 # modelled after templater.templatepath: |
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18 if getattr(sys, 'frozen', None) is not None: |
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19 module = sys.executable |
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20 else: |
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21 module = __file__ |
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22 |
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23 |
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24 _languages = None |
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25 if (os.name == 'nt' |
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26 and 'LANGUAGE' not in os.environ |
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27 and 'LC_ALL' not in os.environ |
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28 and 'LC_MESSAGES' not in os.environ |
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29 and 'LANG' not in os.environ): |
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30 # Try to detect UI language by "User Interface Language Management" API |
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31 # if no locale variables are set. Note that locale.getdefaultlocale() |
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32 # uses GetLocaleInfo(), which may be different from UI language. |
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33 # (See http://msdn.microsoft.com/en-us/library/dd374098(v=VS.85).aspx ) |
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34 try: |
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35 import ctypes |
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36 langid = ctypes.windll.kernel32.GetUserDefaultUILanguage() |
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37 _languages = [locale.windows_locale[langid]] |
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38 except (ImportError, AttributeError, KeyError): |
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39 # ctypes not found or unknown langid |
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40 pass |
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41 |
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42 _ugettext = None |
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43 |
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44 def setdatapath(datapath): |
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45 localedir = os.path.join(datapath, 'locale') |
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46 t = gettextmod.translation('hg', localedir, _languages, fallback=True) |
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47 global _ugettext |
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48 _ugettext = t.ugettext |
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49 |
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50 _msgcache = {} |
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51 |
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52 def gettext(message): |
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53 """Translate message. |
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54 |
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55 The message is looked up in the catalog to get a Unicode string, |
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56 which is encoded in the local encoding before being returned. |
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57 |
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58 Important: message is restricted to characters in the encoding |
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59 given by sys.getdefaultencoding() which is most likely 'ascii'. |
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60 """ |
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61 # If message is None, t.ugettext will return u'None' as the |
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62 # translation whereas our callers expect us to return None. |
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63 if message is None or not _ugettext: |
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64 return message |
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65 |
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66 if message not in _msgcache: |
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67 if type(message) is unicode: |
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68 # goofy unicode docstrings in test |
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69 paragraphs = message.split(u'\n\n') |
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70 else: |
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71 paragraphs = [p.decode("ascii") for p in message.split('\n\n')] |
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72 # Be careful not to translate the empty string -- it holds the |
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73 # meta data of the .po file. |
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74 u = u'\n\n'.join([p and _ugettext(p) or '' for p in paragraphs]) |
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75 try: |
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76 # encoding.tolocal cannot be used since it will first try to |
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77 # decode the Unicode string. Calling u.decode(enc) really |
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78 # means u.encode(sys.getdefaultencoding()).decode(enc). Since |
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79 # the Python encoding defaults to 'ascii', this fails if the |
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80 # translated string use non-ASCII characters. |
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81 _msgcache[message] = u.encode(encoding.encoding, "replace") |
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82 except LookupError: |
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83 # An unknown encoding results in a LookupError. |
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84 _msgcache[message] = message |
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85 return _msgcache[message] |
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86 |
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87 def _plain(): |
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88 if 'HGPLAIN' not in os.environ and 'HGPLAINEXCEPT' not in os.environ: |
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89 return False |
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90 exceptions = os.environ.get('HGPLAINEXCEPT', '').strip().split(',') |
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91 return 'i18n' not in exceptions |
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92 |
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93 if _plain(): |
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94 _ = lambda message: message |
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95 else: |
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96 _ = gettext |