EncodingC.c 1.63 KB
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/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing#kwsys for details.  */
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#include "kwsysPrivate.h"
#include KWSYS_HEADER(Encoding.h)

/* Work-around CMake dependency scanning limitation.  This must
   duplicate the above list of headers.  */
#if 0
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#  include "Encoding.h.in"
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#endif

#include <stdlib.h>

#ifdef _WIN32
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#  include <windows.h>
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#endif

size_t kwsysEncoding_mbstowcs(wchar_t* dest, const char* str, size_t n)
{
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  if (str == 0) {
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    return (size_t)-1;
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  }
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#ifdef _WIN32
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  return MultiByteToWideChar(KWSYS_ENCODING_DEFAULT_CODEPAGE, 0, str, -1, dest,
                             (int)n) -
    1;
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#else
  return mbstowcs(dest, str, n);
#endif
}

wchar_t* kwsysEncoding_DupToWide(const char* str)
{
  wchar_t* ret = NULL;
  size_t length = kwsysEncoding_mbstowcs(NULL, str, 0) + 1;
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  if (length > 0) {
    ret = (wchar_t*)malloc((length) * sizeof(wchar_t));
    if (ret) {
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      ret[0] = 0;
      kwsysEncoding_mbstowcs(ret, str, length);
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    }
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  }
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  return ret;
}

size_t kwsysEncoding_wcstombs(char* dest, const wchar_t* str, size_t n)
{
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  if (str == 0) {
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    return (size_t)-1;
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  }
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#ifdef _WIN32
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  return WideCharToMultiByte(KWSYS_ENCODING_DEFAULT_CODEPAGE, 0, str, -1, dest,
                             (int)n, NULL, NULL) -
    1;
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#else
  return wcstombs(dest, str, n);
#endif
}

char* kwsysEncoding_DupToNarrow(const wchar_t* str)
{
  char* ret = NULL;
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  size_t length = kwsysEncoding_wcstombs(0, str, 0) + 1;
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  if (length > 0) {
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    ret = (char*)malloc(length);
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    if (ret) {
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      ret[0] = 0;
      kwsysEncoding_wcstombs(ret, str, length);
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    }
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  }
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  return ret;
}