137 lines
4.0 KiB
C++
137 lines
4.0 KiB
C++
/* SPDX-FileCopyrightText: 2012 Blender Authors
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*
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* SPDX-License-Identifier: GPL-2.0-or-later */
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/** \file
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* \ingroup intern_locale
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*/
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#include <boost/locale.hpp>
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#include <iostream>
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#include <stdio.h>
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#include "boost_locale_wrapper.h"
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static std::string messages_path;
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static std::string default_domain;
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static std::string locale_str;
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/* NOTE: We cannot use short stuff like `boost::locale::gettext`, because those return
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* `std::basic_string` objects, which c_ptr()-returned char* is no more valid
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* once deleted (which happens as soons they are out of scope of this func). */
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typedef boost::locale::message_format<char> char_message_facet;
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static std::locale locale_global;
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static char_message_facet const *facet_global = NULL;
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static void bl_locale_global_cache()
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{
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/* Cache facet in global variable. Not only is it better for performance,
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* it also fixes crashes on macOS when doing translation from threads other
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* than main. Likely because of some internal thread local variables. */
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try {
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/* facet_global reference is valid as long as local_global exists,
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* so we store both. */
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locale_global = std::locale();
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facet_global = &std::use_facet<char_message_facet>(locale_global);
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}
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/* `if std::has_facet<char_message_facet>(l) == false`, LC_ALL = "C" case. */
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catch (const std::bad_cast &e) {
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#ifndef NDEBUG
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std::cout << "bl_locale_global_cache:" << e.what() << " \n";
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#endif
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(void)e;
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facet_global = NULL;
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}
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catch (const std::exception &e) {
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#ifndef NDEBUG
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std::cout << "bl_locale_global_cache:" << e.what() << " \n";
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#endif
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(void)e;
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facet_global = NULL;
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}
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}
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void bl_locale_init(const char *_messages_path, const char *_default_domain)
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{
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/* Avoid using ICU backend, we do not need its power and it's rather heavy! */
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boost::locale::localization_backend_manager lman =
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boost::locale::localization_backend_manager::global();
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#if defined(_WIN32)
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lman.select("winapi");
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#else
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lman.select("posix");
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#endif
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boost::locale::localization_backend_manager::global(lman);
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messages_path = _messages_path;
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default_domain = _default_domain;
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}
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void bl_locale_set(const char *locale)
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{
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boost::locale::generator gen;
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std::locale _locale;
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/* Specify location of dictionaries. */
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gen.add_messages_path(messages_path);
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gen.add_messages_domain(default_domain);
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// gen.set_default_messages_domain(default_domain);
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try {
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if (locale && locale[0]) {
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_locale = gen(locale);
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}
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else {
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#if defined(__APPLE__) && !defined(WITH_HEADLESS) && !defined(WITH_GHOST_SDL)
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std::string locale_osx = osx_user_locale() + std::string(".UTF-8");
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_locale = gen(locale_osx.c_str());
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#else
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_locale = gen("");
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#endif
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}
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std::locale::global(_locale);
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/* NOTE: boost always uses "C" LC_NUMERIC by default! */
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bl_locale_global_cache();
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/* Generate the locale string
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* (useful to know which locale we are actually using in case of "default" one). */
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#define LOCALE_INFO std::use_facet<boost::locale::info>(_locale)
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locale_str = LOCALE_INFO.language();
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if (LOCALE_INFO.country() != "") {
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locale_str += "_" + LOCALE_INFO.country();
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}
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if (LOCALE_INFO.variant() != "") {
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locale_str += "@" + LOCALE_INFO.variant();
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}
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#undef LOCALE_INFO
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}
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/* Extra catch on `std::runtime_error` is needed for macOS/Clang as it seems that exceptions
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* like `boost::locale::conv::conversion_error` (which inherit from `std::runtime_error`) are
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* not caught by their ancestor `std::exception`. See #88877#1177108 */
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catch (std::runtime_error const &e) {
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std::cout << "bl_locale_set(" << locale << "): " << e.what() << " \n";
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}
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catch (std::exception const &e) {
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std::cout << "bl_locale_set(" << locale << "): " << e.what() << " \n";
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}
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}
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const char *bl_locale_get(void)
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{
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return locale_str.c_str();
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}
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const char *bl_locale_pgettext(const char *msgctxt, const char *msgid)
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{
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if (facet_global) {
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char const *r = facet_global->get(0, msgctxt, msgid);
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if (r) {
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return r;
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}
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}
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return msgid;
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}
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