Merge branch 'upstream-kwsys' into update-kwsys

Source/kwsys/EncodingC.c

@@ -0,0 +1,79 @@
+/*============================================================================
+  KWSys - Kitware System Library
+  Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
+
+  Distributed under the OSI-approved BSD License (the "License");
+  see accompanying file Copyright.txt for details.
+
+  This software is distributed WITHOUT ANY WARRANTY; without even the
+  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the License for more information.
+============================================================================*/
+#include "kwsysPrivate.h"
+#include KWSYS_HEADER(Encoding.h)
+
+/* Work-around CMake dependency scanning limitation.  This must
+   duplicate the above list of headers.  */
+#if 0
+# include "Encoding.h.in"
+#endif
+
+#include <stdlib.h>
+
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
+size_t kwsysEncoding_mbstowcs(wchar_t* dest, const char* str, size_t n)
+{
+  if(str == 0)
+    {
+    return (size_t)-1;
+    }
+#ifdef _WIN32
+  return MultiByteToWideChar(KWSYS_ENCODING_DEFAULT_CODEPAGE, 0,
+                             str, -1, dest, (int)n) - 1;
+#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;
+  if(length > 0)
+    {
+    ret = malloc((length)*sizeof(wchar_t));
+    ret[0] = 0;
+    kwsysEncoding_mbstowcs(ret, str, length);
+    }
+  return ret;
+}
+
+size_t kwsysEncoding_wcstombs(char* dest, const wchar_t* str, size_t n)
+{
+  if(str == 0)
+    {
+    return (size_t)-1;
+    }
+#ifdef _WIN32
+  return WideCharToMultiByte(KWSYS_ENCODING_DEFAULT_CODEPAGE, 0, str, -1,
+                             dest, (int)n, NULL, NULL) - 1;
+#else
+  return wcstombs(dest, str, n);
+#endif
+}
+
+char* kwsysEncoding_DupToNarrow(const wchar_t* str)
+{
+  char* ret = NULL;
+  size_t length = kwsysEncoding_wcstombs(0, str, 0);
+  if(length > 0)
+    {
+    ret = malloc(length);
+    ret[0] = 0;
+    kwsysEncoding_wcstombs(ret, str, length);
+    }
+  return ret;
+}