108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/*
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Minetest
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Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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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 Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include "config.h" // for USE_GETTEXT
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#include <string>
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#include "porting.h"
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#if USE_GETTEXT
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#include <libintl.h>
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#else
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// In certain environments, some standard headers like <iomanip>
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// and <locale> include libintl.h. If libintl.h is included after
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// we define our gettext macro below, this causes a syntax error
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// at the declaration of the gettext function in libintl.h.
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// Fix this by including such a header before defining the macro.
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// See issue #4446.
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// Note that we can't include libintl.h directly since we're in
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// the USE_GETTEXT=0 case and can't assume that gettext is installed.
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#include <locale>
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#define gettext(String) String
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#endif
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#define _(String) gettext(String)
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#define gettext_noop(String) (String)
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#define N_(String) gettext_noop((String))
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void init_gettext(const char *path, const std::string &configured_language,
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int argc, char *argv[]);
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extern wchar_t *utf8_to_wide_c(const char *str);
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// The returned string must be freed using delete[]
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inline const wchar_t *wgettext(const char *str)
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{
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// We must check here that is not an empty string to avoid trying to translate it
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return str[0] ? utf8_to_wide_c(gettext(str)) : utf8_to_wide_c("");
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}
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inline std::string strgettext(const std::string &text)
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{
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return text.empty() ? "" : gettext(text.c_str());
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}
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/**
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* Returns translated string with format args applied
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*
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* @tparam Args Template parameter for format args
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* @param src Translation source string
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* @param args Variable format args
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* @return translated string
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*/
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template <typename ...Args>
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inline std::wstring fwgettext(const char *src, Args&&... args)
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{
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wchar_t buf[255];
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const wchar_t* str = wgettext(src);
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swprintf(buf, sizeof(buf) / sizeof(wchar_t), str, std::forward<Args>(args)...);
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delete[] str;
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return std::wstring(buf);
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}
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/**
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* Returns translated string with format args applied
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*
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* @tparam Args Template parameter for format args
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* @param format Translation source string
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* @param args Variable format args
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* @return translated string.
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*/
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template <typename ...Args>
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inline std::string fmtgettext(const char *format, Args&&... args)
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{
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std::string buf;
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std::size_t buf_size = 256;
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buf.resize(buf_size);
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format = gettext(format);
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int len = porting::mt_snprintf(&buf[0], buf_size, format, std::forward<Args>(args)...);
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if (len <= 0) throw std::runtime_error("gettext format error: " + std::string(format));
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if ((size_t)len >= buf.size()) {
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buf.resize(len+1); // extra null byte
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porting::mt_snprintf(&buf[0], buf.size(), format, std::forward<Args>(args)...);
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}
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buf.resize(len); // remove null bytes
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return buf;
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}
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