98 lines
2.9 KiB
C++
98 lines
2.9 KiB
C++
/**
|
|
* @file llformat.cpp
|
|
* @date January 2007
|
|
* @brief string formatting utility
|
|
*
|
|
* $LicenseInfo:firstyear=2007&license=viewergpl$
|
|
*
|
|
* Copyright (c) 2007-2009, Linden Research, Inc.
|
|
*
|
|
* Second Life Viewer Source Code
|
|
* The source code in this file ("Source Code") is provided by Linden Lab
|
|
* to you under the terms of the GNU General Public License, version 2.0
|
|
* ("GPL"), unless you have obtained a separate licensing agreement
|
|
* ("Other License"), formally executed by you and Linden Lab. Terms of
|
|
* the GPL can be found in doc/GPL-license.txt in this distribution, or
|
|
* online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
|
|
*
|
|
* There are special exceptions to the terms and conditions of the GPL as
|
|
* it is applied to this Source Code. View the full text of the exception
|
|
* in the file doc/FLOSS-exception.txt in this software distribution, or
|
|
* online at
|
|
* http://secondlifegrid.net/programs/open_source/licensing/flossexception
|
|
*
|
|
* By copying, modifying or distributing this software, you acknowledge
|
|
* that you have read and understood your obligations described above,
|
|
* and agree to abide by those obligations.
|
|
*
|
|
* ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
|
|
* WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
|
|
* COMPLETENESS OR PERFORMANCE.
|
|
* $/LicenseInfo$
|
|
*/
|
|
|
|
#include "linden_common.h"
|
|
|
|
#include "llformat.h"
|
|
|
|
#include <cstdarg>
|
|
#include <boost/align/aligned_allocator.hpp>
|
|
|
|
// common used function with va_list argument
|
|
// wrapper for vsnprintf to be called from llformatXXX functions.
|
|
static void va_format(std::string& out, const char *fmt, va_list& va)
|
|
{
|
|
if (!fmt || !fmt[0]) return; // Don't bother if null or empty c_str
|
|
|
|
typedef typename std::vector<char, boost::alignment::aligned_allocator<char, 1>> vec_t;
|
|
static thread_local vec_t charvector(1024); // Evolves into charveleon
|
|
#define vsnprintf(va) std::vsnprintf(charvector.data(), charvector.capacity(), fmt, va)
|
|
#ifdef LL_WINDOWS // We don't have to copy on windows
|
|
#define va2 va
|
|
#else
|
|
va_list va2;
|
|
va_copy(va2, va);
|
|
#endif
|
|
const auto smallsize(charvector.capacity());
|
|
const auto size = vsnprintf(va);
|
|
if (size < 0)
|
|
{
|
|
LL_ERRS() << "Encoding failed, code " << size << ". String hint: " << out << '/' << fmt << LL_ENDL;
|
|
}
|
|
else if (static_cast<vec_t::size_type>(size) >= smallsize) // Resize if we need more space
|
|
{
|
|
charvector.resize(1+size); // Use the String Stone
|
|
vsnprintf(va2);
|
|
}
|
|
#ifndef LL_WINDOWS
|
|
va_end(va2);
|
|
#endif
|
|
out.assign(charvector.data());
|
|
}
|
|
|
|
std::string llformat(const char *fmt, ...)
|
|
{
|
|
std::string res;
|
|
va_list va;
|
|
va_start(va, fmt);
|
|
va_format(res, fmt, va);
|
|
va_end(va);
|
|
return res;
|
|
}
|
|
|
|
std::string llformat_to_utf8(const char *fmt, ...)
|
|
{
|
|
std::string res;
|
|
va_list va;
|
|
va_start(va, fmt);
|
|
va_format(res, fmt, va);
|
|
va_end(va);
|
|
|
|
#if LL_WINDOWS
|
|
// made converting to utf8. See EXT-8318.
|
|
res = ll_convert_string_to_utf8_string(res);
|
|
#endif
|
|
return res;
|
|
}
|
|
|