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100 lines
2.8 KiB
C++
100 lines
2.8 KiB
C++
// Luanti
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// SPDX-License-Identifier: LGPL-2.1-or-later
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// Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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#pragma once
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#include "config.h" // for USE_GETTEXT
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#include "porting.h"
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#include "util/string.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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#define ngettext(String1, String2, n) ((n) == 1 ? (String1) : (String2))
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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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inline std::string strgettext(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] ? gettext(str) : "";
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}
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inline std::string strgettext(const std::string &str)
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{
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return strgettext(str.c_str());
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}
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inline std::wstring wstrgettext(const char *str)
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{
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return utf8_to_wide(strgettext(str));
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}
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inline std::wstring wstrgettext(const std::string &str)
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{
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return wstrgettext(str.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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swprintf(buf, sizeof(buf) / sizeof(wchar_t), wstrgettext(src).c_str(),
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std::forward<Args>(args)...);
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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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