fastformat/sinks/FILE.hpp

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/* /////////////////////////////////////////////////////////////////////////
 * File:        fastformat/sinks/FILE.hpp
 *
 * Purpose:     A FastFormat sink for FILE*.
 *
 * Created:     3rd January 2008
 * Updated:     7th March 2010
 *
 * Home:        http://www.fastformat.org/
 *
 * Copyright (c) 2008-2010, Matthew Wilson and Synesis Software
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 * - Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - Neither the names of Matthew Wilson and Synesis Software nor the names
 *   of any contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * ////////////////////////////////////////////////////////////////////// */


#ifndef FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_FILE
#define FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_FILE

/* /////////////////////////////////////////////////////////////////////////
 * Version information
 */

#ifndef FASTFORMAT_DOCUMENTATION_SKIP_SECTION
# define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_FILE_MAJOR      1
# define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_FILE_MINOR      1
# define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_FILE_REVISION   5
# define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_FILE_EDIT       19
#endif /* !FASTFORMAT_DOCUMENTATION_SKIP_SECTION */

/* /////////////////////////////////////////////////////////////////////////
 * Language
 */

#ifndef __cplusplus
# error This file can only be included in C++ compilation units
#endif /* !__cplusplus */

/* /////////////////////////////////////////////////////////////////////////
 * Includes
 */

#include <fastformat/fastformat.h>
#include <fastformat/util/sinks/helpers.hpp>
#include <fastformat/format/standard_flags.hpp>

#include <platformstl/error/exceptions.hpp>
#include <stlsoft/memory/auto_buffer.hpp>

#include <stdio.h>

/* /////////////////////////////////////////////////////////////////////////
 * Namespace
 */

#if !defined(FASTFORMAT_NO_NAMESPACE)
namespace fastformat
{
namespace sinks
{
#endif /* !FASTFORMAT_NO_NAMESPACE */

/* /////////////////////////////////////////////////////////////////////////
 * Action Shims
 */

inline FILE*& fmt_slices(FILE*& sink, int flags, size_t cchTotal, size_t numResults, ff_string_slice_t const* results)
{
#ifndef FASTFORMAT_FILE_SINK_OLD_IMPLEMENTATION

    stlsoft::auto_buffer<ff_char_t> buff(cchTotal + 1 + 1); // 1 for \0, 1 for newline (if needed)
    int                             n = 0;

# ifndef STLSOFT_CF_THROW_BAD_ALLOC
    if(!buff.empty())
# endif /* !STLSOFT_CF_THROW_BAD_ALLOC */
    {
# if !defined(FASTFORMAT_NO_NAMESPACE)
        using ::fastformat::util::concat_slices;
# endif /* !FASTFORMAT_NO_NAMESPACE */

        size_t n2 = concat_slices(buff, numResults, results);
        if(flags::ff_newLine & flags)
        {
            buff[n2++] = '\n';
        }
        buff[n2++] = '\0';

# ifdef FASTFORMAT_USE_WIDE_STRINGS
        n = ::fputws(
# else /* ? FASTFORMAT_USE_WIDE_STRINGS */
        n = ::fputs(
# endif /* FASTFORMAT_USE_WIDE_STRINGS */
            buff.data()
        ,   sink
        );
    }

    if( n >= 0 &&
        0 != (flags::ff_flush & flags))
    {
        ::fflush(sink);
    }

#else /* ? !FASTFORMAT_FILE_SINK_OLD_IMPLEMENTATION */

    stlsoft::auto_buffer<ff_char_t> buff(cchTotal);
    int                             n = 0;

# ifndef STLSOFT_CF_THROW_BAD_ALLOC
    if(!buff.empty())
# endif /* !STLSOFT_CF_THROW_BAD_ALLOC */
    {
# if !defined(FASTFORMAT_NO_NAMESPACE)
        using ::fastformat::util::concat_slices;
# endif /* !FASTFORMAT_NO_NAMESPACE */

        concat_slices(buff, numResults, results);

# ifdef FASTFORMAT_USE_WIDE_STRINGS
        n = ::fwprintf(
# else /* ? FASTFORMAT_USE_WIDE_STRINGS */
        n = ::fprintf(
# endif /* FASTFORMAT_USE_WIDE_STRINGS */
            sink
        ,   (flags::ff_newLine & flags) ? FASTFORMAT_LITERAL_STRING("%.*s\n") : FASTFORMAT_LITERAL_STRING("%.*s")
        ,   static_cast<int>(cchTotal), buff.data()
        );
    }

    if( n >= 0 &&
        0 != (flags::ff_flush & flags))
    {
        ::fflush(sink);
    }

#endif /* !FASTFORMAT_FILE_SINK_OLD_IMPLEMENTATION */

    return sink;
}

/* /////////////////////////////////////////////////////////////////////////
 * Namespace
 */

#if !defined(FASTFORMAT_NO_NAMESPACE)
} /* namespace sinks */
} /* namespace fastformat */
#endif /* !FASTFORMAT_NO_NAMESPACE */

/* /////////////////////////////////////////////////////////////////////////
 * Inclusion
 */

#ifdef STLSOFT_PPF_pragma_once_SUPPORT
# pragma once
#endif /* STLSOFT_PPF_pragma_once_SUPPORT */

/* ////////////////////////////////////////////////////////////////////// */

#endif /* FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_FILE */

/* ///////////////////////////// end of file //////////////////////////// */

FastFormat Library documentation © Matthew Wilson, 2006-2009