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/*
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.
*/
#pragma once
#include "config.h" // for USE_GETTEXT
#include <string>
#include "porting.h"
#if USE_GETTEXT
#include <libintl.h>
#else
// In certain environments, some standard headers like <iomanip>
// and <locale> include libintl.h. If libintl.h is included after
// we define our gettext macro below, this causes a syntax error
// at the declaration of the gettext function in libintl.h.
// Fix this by including such a header before defining the macro.
// See issue #4446.
// Note that we can't include libintl.h directly since we're in
// the USE_GETTEXT=0 case and can't assume that gettext is installed.
#include <locale>
#define gettext(String) String
#endif
#define _(String) gettext(String)
#define gettext_noop(String) (String)
#define N_(String) gettext_noop((String))
void init_gettext(const char *path, const std::string &configured_language,
int argc, char *argv[]);
extern wchar_t *utf8_to_wide_c(const char *str);
// The returned string must be freed using delete[]
inline const wchar_t *wgettext(const char *str)
{
// We must check here that is not an empty string to avoid trying to translate it
return str[0] ? utf8_to_wide_c(gettext(str)) : utf8_to_wide_c("");
}
inline std::string strgettext(const std::string &text)
{
return text.empty() ? "" : gettext(text.c_str());
}
/**
* Returns translated string with format args applied
*
* @tparam Args Template parameter for format args
* @param src Translation source string
* @param args Variable format args
* @return translated string
*/
template <typename ...Args>
inline std::wstring fwgettext(const char *src, Args&&... args)
{
wchar_t buf[255];
const wchar_t* str = wgettext(src);
swprintf(buf, sizeof(buf) / sizeof(wchar_t), str, std::forward<Args>(args)...);
delete[] str;
return std::wstring(buf);
}
/**
* Returns translated string with format args applied
*
* @tparam Args Template parameter for format args
* @param format Translation source string
* @param args Variable format args
* @return translated string.
*/
template <typename ...Args>
inline std::string fmtgettext(const char *format, Args&&... args)
{
std::string buf;
std::size_t buf_size = 256;
buf.resize(buf_size);
format = gettext(format);
int len = porting::mt_snprintf(&buf[0], buf_size, format, std::forward<Args>(args)...);
if (len <= 0) throw std::runtime_error("gettext format error: " + std::string(format));
if ((size_t)len >= buf.size()) {
buf.resize(len+1); // extra null byte
porting::mt_snprintf(&buf[0], buf.size(), format, std::forward<Args>(args)...);
}
buf.resize(len); // remove null bytes
return buf;
}
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