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b4fedff90e
We can't use std::locale::global because all streams imbue it by
default and if it's not 'C' (aka std::locale::classic) then we
must imbue all the streams that we don't want localized, and that's
most of them.
Provides error checking for setting the C++ locale from the environment.
This is necessary both because the environment might have an invalid
locale, which would cause an unhandled exception crash.
On windows std::locale("") can't handle some Microsoft-style locale
strings (e.g. Spanish_Spain) so we use boost::locale's gen("") function
to set the locale--though even that can't handle a Microsoft-style
locale string with an appended charset (e.g. Spanish_Spain.1252) and
that's what glibc's setlocale(LC_ALL, NULL) emits.
40 lines
2.0 KiB
C++
40 lines
2.0 KiB
C++
/********************************************************************\
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* gnc-locale-utils.hpp -- provide a default locale for C++ *
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* Copyright (C) 2019 John Ralls <jralls@ceridwen.us *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License as *
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* published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License*
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* along with this program; if not, contact: *
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* *
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* Free Software Foundation Voice: +1-617-542-5942 *
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* 51 Franklin Street, Fifth Floor Fax: +1-617-542-2652 *
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* Boston, MA 02110-1301, USA gnu@gnu.org *
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\********************************************************************/
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#ifndef GNC_LOCALE_UTILS_HPP
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#define GNC_LOCALE_UTILS_HPP
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#include <locale>
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/** Get the default application locale.
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*
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* If we set std::locale::global we have to imbue every stream that
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* we want in the C locale, and that's a lot more than we want imbued
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* with the application locale. Calling std::locale("") is expensive,
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* so call this instead.
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*
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* @returns A static std::locale representing the one set with
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* setlocale() in main().
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*/
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const std::locale& gnc_get_locale();
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#endif /* GNC_LOCALE_UTILS_HPP */
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