1 | # -*- coding: UTF-8 -*- |
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2 | # |
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3 | # PyKota : Print Quotas for CUPS |
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4 | # |
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5 | # (c) 2003, 2004, 2005, 2006, 2007, 2008 Jerome Alet <alet@librelogiciel.com> |
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6 | # This program is free software: you can redistribute it and/or modify |
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7 | # it under the terms of the GNU General Public License as published by |
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8 | # the Free Software Foundation, either version 3 of the License, or |
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9 | # (at your option) any later version. |
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10 | # |
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11 | # This program is distributed in the hope that it will be useful, |
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12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | # GNU General Public License for more details. |
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15 | # |
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16 | # You should have received a copy of the GNU General Public License |
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17 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 | # |
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19 | # $Id$ |
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20 | # |
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21 | |
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22 | """This module defines some utility functions which make no sense as methods.""" |
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23 | |
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24 | import sys |
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25 | import locale |
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26 | import gettext |
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27 | |
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28 | def initlocale(lang="", cset=None) : |
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29 | """Initializes the locale stuff.""" |
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30 | try : |
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31 | locale.setlocale(locale.LC_ALL, (lang, cset)) |
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32 | except (locale.Error, IOError) : |
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33 | locale.setlocale(locale.LC_ALL, None) |
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34 | (language, charset) = locale.getlocale() |
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35 | language = language or "C" |
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36 | try : |
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37 | charset = charset or locale.getpreferredencoding() |
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38 | except locale.Error : |
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39 | charset = sys.stdout.encoding or sys.getfilesystemencoding() |
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40 | |
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41 | # Dirty hack : if the charset is ASCII, we can safely use UTF-8 instead |
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42 | # This has the advantage of allowing transparent support for recent |
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43 | # versions of CUPS which (en-)force charset to UTF-8 when printing. |
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44 | # This should be needed only when printing, but is probably (?) safe |
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45 | # to do when using interactive commands. |
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46 | if charset.upper() in ('ASCII', 'ANSI_X3.4-1968') : |
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47 | charset = "UTF-8" |
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48 | return (language, charset) |
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49 | |
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50 | def initgettext(lang, cset) : |
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51 | """Initializes gettext translations for PyKota.""" |
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52 | try : |
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53 | try : |
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54 | trans = gettext.translation("pykota", \ |
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55 | languages=["%s.%s" % (lang, |
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56 | cset)], |
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57 | codeset=cset) |
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58 | except TypeError : # Python <2.4 |
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59 | trans = gettext.translation("pykota", |
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60 | languages=["%s.%s" % (lang, |
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61 | cset)]) |
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62 | trans.install(unicode=True) |
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63 | except : |
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64 | gettext.NullTranslations().install(unicode=True) |
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65 | |
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66 | def databaseToUnicode(text) : |
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67 | """Converts from database format (UTF-8) to unicode.""" |
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68 | if text is not None : |
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69 | return text.decode("UTF-8", "replace") |
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70 | else : |
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71 | return None |
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72 | |
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73 | def unicodeToDatabase(text) : |
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74 | """Converts from unicode to database format (UTF-8).""" |
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75 | if text is not None : |
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76 | return text.encode("UTF-8", "replace") |
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77 | else : |
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78 | return None |
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79 | |
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80 | def logerr(text) : |
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81 | """Logs an unicode text to stderr.""" |
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82 | sys.stderr.write(text.encode(sys.stdout.encoding, "replace")) |
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83 | |
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