minetest/src/gettext.cpp
Pevernow c6eddb0bae
Gettext support on Android (#11435)
Co-authored-by: sfan5 <sfan5@live.de>
Co-authored-by: =?UTF-8?q?Olivier=20Samyn=20=F0=9F=8E=BB?= <code@oleastre.be>
2021-08-08 18:59:07 +02:00

256 lines
7.3 KiB
C++

/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <string>
#include <cstring>
#include <iostream>
#include <cstdlib>
#include "gettext.h"
#include "util/string.h"
#include "log.h"
#if USE_GETTEXT && defined(_MSC_VER)
#include <windows.h>
#include <map>
#include <direct.h>
#include "filesys.h"
#define setlocale(category, localename) \
setlocale(category, MSVC_LocaleLookup(localename))
static std::map<std::wstring, std::wstring> glb_supported_locales;
/******************************************************************************/
BOOL CALLBACK UpdateLocaleCallback(LPTSTR pStr)
{
char* endptr = 0;
int LOCALEID = strtol(pStr, &endptr,16);
wchar_t buffer[LOCALE_NAME_MAX_LENGTH];
memset(buffer, 0, sizeof(buffer));
if (GetLocaleInfoW(
LOCALEID,
LOCALE_SISO639LANGNAME,
buffer,
LOCALE_NAME_MAX_LENGTH)) {
std::wstring name = buffer;
memset(buffer, 0, sizeof(buffer));
GetLocaleInfoW(
LOCALEID,
LOCALE_SISO3166CTRYNAME,
buffer,
LOCALE_NAME_MAX_LENGTH);
std::wstring country = buffer;
memset(buffer, 0, sizeof(buffer));
GetLocaleInfoW(
LOCALEID,
LOCALE_SENGLISHLANGUAGENAME,
buffer,
LOCALE_NAME_MAX_LENGTH);
std::wstring languagename = buffer;
/* set both short and long variant */
glb_supported_locales[name] = languagename;
glb_supported_locales[name + L"_" + country] = languagename;
}
return true;
}
/******************************************************************************/
const char* MSVC_LocaleLookup(const char* raw_shortname) {
/* NULL is used to read locale only so we need to return it too */
if (raw_shortname == NULL) return NULL;
std::string shortname(raw_shortname);
if (shortname == "C") return "C";
if (shortname == "") return "";
static std::string last_raw_value = "";
static std::string last_full_name = "";
static bool first_use = true;
if (last_raw_value == shortname) {
return last_full_name.c_str();
}
if (first_use) {
EnumSystemLocalesA(UpdateLocaleCallback, LCID_SUPPORTED | LCID_ALTERNATE_SORTS);
first_use = false;
}
last_raw_value = shortname;
if (glb_supported_locales.find(utf8_to_wide(shortname)) != glb_supported_locales.end()) {
last_full_name = wide_to_utf8(
glb_supported_locales[utf8_to_wide(shortname)]);
return last_full_name.c_str();
}
/* empty string is system default */
errorstream << "MSVC_LocaleLookup: unsupported locale: \"" << shortname
<< "\" switching to system default!" << std::endl;
return "";
}
#endif
/******************************************************************************/
void init_gettext(const char *path, const std::string &configured_language,
int argc, char *argv[])
{
#if USE_GETTEXT
// First, try to set user override environment
if (!configured_language.empty()) {
#ifndef _WIN32
// Add user specified locale to environment
setenv("LANGUAGE", configured_language.c_str(), 1);
#ifdef __ANDROID__
setenv("LANG", configured_language.c_str(), 1);
#endif
// Reload locale with changed environment
setlocale(LC_ALL, "");
#elif defined(_MSC_VER)
std::string current_language;
const char *env_lang = getenv("LANGUAGE");
if (env_lang)
current_language = env_lang;
_putenv(("LANGUAGE=" + configured_language).c_str());
SetEnvironmentVariableA("LANGUAGE", configured_language.c_str());
#ifndef SERVER
// Hack to force gettext to see the right environment
if (current_language != configured_language) {
errorstream << "MSVC localization workaround active. "
"Restarting " PROJECT_NAME_C " in a new environment!" << std::endl;
std::string parameters;
for (unsigned int i = 1; i < argc; i++) {
if (!parameters.empty())
parameters += ' ';
parameters += argv[i];
}
const char *ptr_parameters = NULL;
if (!parameters.empty())
ptr_parameters = parameters.c_str();
// Allow calling without an extension
std::string app_name = argv[0];
if (app_name.compare(app_name.size() - 4, 4, ".exe") != 0)
app_name += ".exe";
STARTUPINFO startup_info = {0};
PROCESS_INFORMATION process_info = {0};
bool success = CreateProcess(app_name.c_str(), (char *)ptr_parameters,
NULL, NULL, false, DETACHED_PROCESS | CREATE_UNICODE_ENVIRONMENT,
NULL, NULL, &startup_info, &process_info);
if (success) {
exit(0);
// NOTREACHED
} else {
char buffer[1024];
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, GetLastError(),
MAKELANGID(LANG_NEUTRAL,SUBLANG_DEFAULT), buffer,
sizeof(buffer) - 1, NULL);
errorstream << "*******************************************************" << std::endl;
errorstream << "CMD: " << app_name << std::endl;
errorstream << "Failed to restart with current locale: " << std::endl;
errorstream << buffer;
errorstream << "Expect language to be broken!" << std::endl;
errorstream << "*******************************************************" << std::endl;
}
}
#else
errorstream << "*******************************************************" << std::endl;
errorstream << "Can't apply locale workaround for server!" << std::endl;
errorstream << "Expect language to be broken!" << std::endl;
errorstream << "*******************************************************" << std::endl;
#endif
setlocale(LC_ALL, configured_language.c_str());
#else // Mingw
_putenv(("LANGUAGE=" + configured_language).c_str());
setlocale(LC_ALL, "");
#endif // ifndef _WIN32
}
else {
/* set current system default locale */
setlocale(LC_ALL, "");
}
#if defined(_WIN32)
if (getenv("LANGUAGE") != 0) {
setlocale(LC_ALL, getenv("LANGUAGE"));
}
#ifdef _MSC_VER
else if (getenv("LANG") != 0) {
setlocale(LC_ALL, getenv("LANG"));
}
#endif
#endif
std::string name = lowercase(PROJECT_NAME);
infostream << "Gettext: domainname=\"" << name
<< "\" path=\"" << path << "\"" << std::endl;
bindtextdomain(name.c_str(), path);
textdomain(name.c_str());
#if defined(_WIN32)
// Set character encoding for Win32
char *tdomain = textdomain( (char *) NULL );
if( tdomain == NULL )
{
errorstream << "Warning: domainname parameter is the null pointer" <<
", default domain is not set" << std::endl;
tdomain = (char *) "messages";
}
/* char *codeset = */bind_textdomain_codeset( tdomain, "UTF-8" );
//errorstream << "Gettext debug: domainname = " << tdomain << "; codeset = "<< codeset << std::endl;
#endif // defined(_WIN32)
#else
/* set current system default locale */
setlocale(LC_ALL, "");
#endif // if USE_GETTEXT
/* no matter what locale is used we need number format to be "C" */
/* to ensure formspec parameters are evaluated correct! */
setlocale(LC_NUMERIC, "C");
infostream << "Message locale is now set to: "
<< setlocale(LC_ALL, 0) << std::endl;
}