f9e3afaad2
This reverts commit 4f87e82a19.
string::data can't be nonconst until C++17, maybe one day.
82 lines
2.4 KiB
C++
82 lines
2.4 KiB
C++
/**
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* @file llformat.cpp
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* @date January 2007
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* @brief string formatting utility
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*
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* $LicenseInfo:firstyear=2007&license=viewergpl$
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*
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* Copyright (c) 2007-2009, Linden Research, Inc.
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*
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* Second Life Viewer Source Code
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* The source code in this file ("Source Code") is provided by Linden Lab
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* to you under the terms of the GNU General Public License, version 2.0
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* ("GPL"), unless you have obtained a separate licensing agreement
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* ("Other License"), formally executed by you and Linden Lab. Terms of
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* the GPL can be found in doc/GPL-license.txt in this distribution, or
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* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
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*
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* There are special exceptions to the terms and conditions of the GPL as
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* it is applied to this Source Code. View the full text of the exception
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* in the file doc/FLOSS-exception.txt in this software distribution, or
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* online at
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* http://secondlifegrid.net/programs/open_source/licensing/flossexception
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*
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* By copying, modifying or distributing this software, you acknowledge
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* that you have read and understood your obligations described above,
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* and agree to abide by those obligations.
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*
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* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
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* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
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* COMPLETENESS OR PERFORMANCE.
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* $/LicenseInfo$
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*/
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#include "linden_common.h"
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#include "llformat.h"
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#include <cstdarg>
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// common used function with va_list argument
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// wrapper for vsnprintf to be called from llformatXXX functions.
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static void va_format(std::string& out, const char *fmt, va_list va)
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{
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constexpr auto smallsize = 1024;
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std::vector<char> charvector(smallsize); // Evolves into charveleon
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va_list va2;
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va_copy(va2, va);
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const auto size = std::vsnprintf(charvector.data(), charvector.size(), fmt, va);
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if (size >= smallsize)
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{
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charvector.resize(1+size); // Use the String Stone
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std::vsnprintf(charvector.data(), charvector.size(), fmt, va2);
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}
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out.assign(charvector.data());
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}
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std::string llformat(const char *fmt, ...)
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{
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std::string res;
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va_list va;
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va_start(va, fmt);
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va_format(res, fmt, va);
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va_end(va);
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return res;
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}
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std::string llformat_to_utf8(const char *fmt, ...)
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{
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std::string res;
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va_list va;
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va_start(va, fmt);
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va_format(res, fmt, va);
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va_end(va);
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#if LL_WINDOWS
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// made converting to utf8. See EXT-8318.
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res = ll_convert_string_to_utf8_string(res);
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#endif
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return res;
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}
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