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# fastformat/sinks/CComBSTR.hpp

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    00001 /* /////////////////////////////////////////////////////////////////////////
    00002  * File:        fastformat/sinks/CComBSTR.hpp
    00003  *
    00004  * Purpose:     A FastFormat sink adaptor for ATL's CComBSTR.
    00005  *
    00006  * Created:     21st November 2008
    00007  * Updated:     11th August 2009
    00008  *
    00009  * Home:        http://www.fastformat.org/
    00010  *
    00011  * Copyright (c) 2008-2009, Matthew Wilson and Synesis Software
    00012  * All rights reserved.
    00013  *
    00014  * Redistribution and use in source and binary forms, with or without
    00015  * modification, are permitted provided that the following conditions are
    00016  * met:
    00017  *
    00018  * - Redistributions of source code must retain the above copyright notice,
    00019  *   this list of conditions and the following disclaimer.
    00020  * - Redistributions in binary form must reproduce the above copyright
    00021  *   notice, this list of conditions and the following disclaimer in the
    00022  *   documentation and/or other materials provided with the distribution.
    00023  * - Neither the names of Matthew Wilson and Synesis Software nor the names
    00024  *   of any contributors may be used to endorse or promote products derived
    00025  *   from this software without specific prior written permission.
    00026  *
    00027  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
    00028  * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
    00029  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
    00030  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
    00031  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
    00032  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
    00033  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
    00034  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
    00035  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
    00036  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
    00037  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    00038  *
    00039  * ////////////////////////////////////////////////////////////////////// */
    00040
    00041
    00047 #ifndef FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_CCOMBSTR
    00048 #define FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_CCOMBSTR
    00049
    00050 /* /////////////////////////////////////////////////////////////////////////
    00051  * Version information
    00052  */
    00053
    00054 #ifndef FASTFORMAT_DOCUMENTATION_SKIP_SECTION
    00055 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_CCOMBSTR_MAJOR      1
    00056 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_CCOMBSTR_MINOR      2
    00057 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_CCOMBSTR_REVISION   2
    00058 # define FASTFORMAT_VER_FASTFORMAT_SINK_HPP_CCOMBSTR_EDIT       13
    00059 #endif /* !FASTFORMAT_DOCUMENTATION_SKIP_SECTION */
    00060
    00061 /* /////////////////////////////////////////////////////////////////////////
    00062  * Language
    00063  */
    00064
    00065 #ifndef __cplusplus
    00066 # error This file can only be included in C++ compilation units
    00067 #endif /* !__cplusplus */
    00068
    00069 /* /////////////////////////////////////////////////////////////////////////
    00070  * Includes
    00071  */
    00072
    00073 #include <fastformat/fastformat.h>
    00074 #include <fastformat/quality/contract.h>
    00075 #include <fastformat/format/standard_flags.hpp>
    00076 #include <fastformat/util/sinks/helpers.hpp>
    00077
    00078 #include <atlbase.h>
    00079
    00080 /* /////////////////////////////////////////////////////////////////////////
    00081  * Namespace
    00082  */
    00083
    00084 #if !defined(FASTFORMAT_NO_NAMESPACE)
    00085 namespace fastformat
    00086 {
    00087 namespace sinks
    00088 {
    00089 #endif /* !FASTFORMAT_NO_NAMESPACE */
    00090
    00091 /* /////////////////////////////////////////////////////////////////////////
    00092  * Action Shims
    00093  */
    00094
    00098 inline CComBSTR& fmt_slices(CComBSTR& sink, int flags, size_t cchTotal, size_t numResults, ff_string_slice_t const* results)
    00099 {
    00100     if( 0 != cchTotal ||
    00101         0 != flags)
    00102     {
    00103 #if !defined(FASTFORMAT_NO_NAMESPACE)
    00104         using ::fastformat::util::concat_slices;
    00105 #endif /* !FASTFORMAT_NO_NAMESPACE */
    00106
    00107         const ff_string_slice_t crlf = fastformat_getNewlineForPlatform();
    00108
    00109         if(flags::ff_newLine & flags)
    00110         {
    00111             cchTotal += crlf.len;
    00112         }
    00113
    00114         stlsoft::auto_buffer<ff_char_t> buff(1 + cchTotal);
    00115
    00116         concat_slices(buff, numResults, results);
    00117         buff[cchTotal] = '\0';
    00118
    00119         const unsigned int  len     =   sink.Length();
    00120         const unsigned int  newLen  =   len + static_cast<unsigned int>(cchTotal);
    00121         CComBSTR            newSink(newLen);
    00122
    00123         if(newLen != newSink.Length())
    00124         {
    00125             throw std::bad_alloc();
    00126         }
    00127         else
    00128         {
    00129             // Copy in the original
    00130             ::memcpy(newSink.m_str, sink.m_str, len * sizeof(OLECHAR));
    00131
    00132 #ifdef FASTFORMAT_USE_WIDE_STRINGS
    00133
    00134             ::memcpy(newSink.m_str + len, buff.data(), cchTotal * sizeof(OLECHAR));
    00135
    00136 #else /* ? FASTFORMAT_USE_WIDE_STRINGS */
    00137
    00138             int r = ::MultiByteToWideChar(0, 0, buff.data(), int(cchTotal), &newSink.m_str[0] + len, int(cchTotal));
    00139
    00140             if(0 == r)
    00141             {
    00142                 throw std::runtime_error("conversion failed");
    00143             }
    00144
    00145 #endif /* FASTFORMAT_USE_WIDE_STRINGS */
    00146
    00147             if(flags::ff_newLine & flags)
    00148             {
    00149                 { for(size_t i = 0; i != crlf.len; ++i)
    00150                 {
    00151                     newSink.m_str[newLen - crlf.len + i] = crlf.ptr[i];
    00152                 }}
    00153             }
    00154
    00155             newSink.m_str[newLen] = L'\0';
    00156
    00157             std::swap(sink.m_str, newSink.m_str);
    00158         }
    00159     }
    00160
    00161     return sink;
    00162 }
    00163
    00164 /* /////////////////////////////////////////////////////////////////////////
    00165  * Namespace
    00166  */
    00167
    00168 #if !defined(FASTFORMAT_NO_NAMESPACE)
    00169 } /* namespace sinks */
    00170 } /* namespace fastformat */
    00171 #endif /* !FASTFORMAT_NO_NAMESPACE */
    00172
    00173 /* ////////////////////////////////////////////////////////////////////// */
    00174
    00175 #endif /* FASTFORMAT_INCL_FASTFORMAT_SINK_HPP_CCOMBSTR */
    00176
    00177 /* ///////////////////////////// end of file //////////////////////////// */

FastFormat Library documentation © Matthew Wilson, 2006-2009 |