LCOV - code coverage report
Current view: top level - libgnucash/core-utils - gnc-locale-utils.cpp (source / functions) Hit Total Coverage
Test: gnucash.info Lines: 8 32 25.0 %
Date: 2024-10-31 11:06:40 Functions: 2 3 66.7 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /********************************************************************\
       2                 :            :  * gnc-locale-utils.cpp -- provide a default locale for C++         *
       3                 :            :  * Copyright (C) 2019 John Ralls <jralls@ceridwen.us                *
       4                 :            :  *                                                                  *
       5                 :            :  * This program is free software; you can redistribute it and/or    *
       6                 :            :  * modify it under the terms of the GNU General Public License as   *
       7                 :            :  * published by the Free Software Foundation; either version 2 of   *
       8                 :            :  * the License, or (at your option) any later version.              *
       9                 :            :  *                                                                  *
      10                 :            :  * This program is distributed in the hope that it will be useful,  *
      11                 :            :  * but WITHOUT ANY WARRANTY; without even the implied warranty of   *
      12                 :            :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the    *
      13                 :            :  * GNU General Public License for more details.                     *
      14                 :            :  *                                                                  *
      15                 :            :  * You should have received a copy of the GNU General Public License*
      16                 :            :  * along with this program; if not, contact:                        *
      17                 :            :  *                                                                  *
      18                 :            :  * Free Software Foundation           Voice:  +1-617-542-5942       *
      19                 :            :  * 51 Franklin Street, Fifth Floor    Fax:    +1-617-542-2652       *
      20                 :            :  * Boston, MA  02110-1301,  USA       gnu@gnu.org                   *
      21                 :            : \********************************************************************/
      22                 :            : #include <glib.h>
      23                 :            : #include <clocale>
      24                 :            : #include <boost/locale.hpp>
      25                 :            : #include "gnc-locale-utils.hpp"
      26                 :            : #include <config.h>
      27                 :            : 
      28                 :            : /** Cache the UI locale
      29                 :            :  *
      30                 :            :  * We don't want to set the default locale because we need
      31                 :            :  * std::locale::classic for consistency in stored data. We also don't
      32                 :            :  * want to call std::locale("") more than once, it's slow... and we
      33                 :            :  * don't want to call it on MinGW32 at all because that supports only
      34                 :            :  * std::locale::classic and throws if you try to construct anything
      35                 :            :  * else. Boost::locale doesn't support std::locale::facet required by
      36                 :            :  * boost::datetime (go figure).
      37                 :            :  *
      38                 :            :  * @return a copy of std::locale::classic() on MinGW32 and a copy of
      39                 :            :  * the cached result of std::locale("") otherwise.
      40                 :            :  */
      41                 :            : const std::locale&
      42                 :      11834 : gnc_get_locale()
      43                 :            : {
      44                 :            : #ifdef __MINGW32__
      45                 :            :     return std::locale::classic(); // Nothing else supported.
      46                 :            : #else
      47                 :      11834 :     static std::locale cached;
      48                 :            :     static bool tried_already = false;
      49                 :      11834 :     if (!tried_already)
      50                 :            :     {
      51                 :         26 :         tried_already = true;
      52                 :            :         try
      53                 :            :         {
      54                 :         26 :             cached = std::locale("");
      55                 :            :         }
      56                 :          0 :         catch (const std::runtime_error& err)
      57                 :            :         {
      58                 :          0 :             char* locale = g_strdup(setlocale(LC_ALL, ""));
      59                 :            : 
      60                 :          0 :             g_log(G_LOG_DOMAIN, G_LOG_LEVEL_WARNING,
      61                 :            :                   "Failed to create C++ default locale from "
      62                 :            :                   "%s because %s. Using the 'C' locale for C++.",
      63                 :          0 :                   locale, err.what());
      64                 :          0 :             g_free(locale);
      65                 :          0 :             cached = std::locale::classic();
      66                 :          0 :         }
      67                 :            :     }
      68                 :      11834 :     return cached;
      69                 :            : #endif
      70                 :            : }
      71                 :            : 
      72                 :            : 
      73                 :            : static std::locale boost_cached;
      74                 :            : static bool tried_boost_already = false;
      75                 :            : 
      76                 :            : void
      77                 :          0 : gnc_init_boost_locale (const std::string& messages_path)
      78                 :            : {
      79                 :          0 :     if (!tried_boost_already)
      80                 :            :     {
      81                 :          0 :         tried_boost_already = true;
      82                 :            : 
      83                 :            :         try
      84                 :            :         {
      85                 :          0 :             boost::locale::generator gen;
      86                 :          0 :             if (!messages_path.empty())
      87                 :          0 :                 gen.add_messages_path(messages_path);
      88                 :            :             else
      89                 :          0 :                 g_log(G_LOG_DOMAIN, G_LOG_LEVEL_WARNING,
      90                 :            :                       "Attempt to initialize boost_locale without a message_path. "
      91                 :            :                       "If message catalogs are not installed in the system's default locations "
      92                 :            :                       "user interface strings will not be translated.");
      93                 :          0 :             gen.add_messages_domain(PROJECT_NAME);
      94                 :          0 :             boost_cached = gen ("");
      95                 :          0 :         }
      96                 :          0 :         catch (const std::runtime_error& err)
      97                 :            :         {
      98                 :          0 :             char* locale = g_strdup(setlocale(LC_ALL, ""));
      99                 :            : 
     100                 :          0 :             g_log(G_LOG_DOMAIN, G_LOG_LEVEL_WARNING,
     101                 :            :                   "Failed to create C++ default locale from"
     102                 :            :                   "%s because %s. Using the 'C' locale for C++.",
     103                 :          0 :                   locale, err.what());
     104                 :          0 :             boost_cached = std::locale::classic();
     105                 :          0 :         }
     106                 :            :     }
     107                 :          0 : }
     108                 :            : 
     109                 :            : 
     110                 :            : 
     111                 :            : const std::locale&
     112                 :          3 : gnc_get_boost_locale()
     113                 :            : {
     114                 :          3 :     return boost_cached;
     115                 :            : }
     116                 :            : 
     117                 :            : 

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