* Adjustment: Initial work on moving x86Unix platform code into a more common POSIX platform.

Engine/source/platformPOSIX/POSIXStrings.cpp

@@ -0,0 +1,70 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#include "platformX86UNIX/platformX86UNIX.h"
+#include "core/strings/stringFunctions.h"
+#include <stdarg.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+
+const char *stristr(const char *szStringToBeSearched, const char *szSubstringToSearchFor)
+{
+   const char *pPos = NULL;
+   char *szCopy1 = NULL;
+   char *szCopy2 = NULL;
+
+   // verify parameters
+   if ( szStringToBeSearched == NULL ||
+        szSubstringToSearchFor == NULL )
+   {
+      return szStringToBeSearched;
+   }
+
+   // empty substring - return input (consistent with strstr)
+   if (strlen(szSubstringToSearchFor) == 0 ) {
+      return szStringToBeSearched;
+   }
+
+   szCopy1 = dStrlwr(strdup(szStringToBeSearched));
+   szCopy2 = dStrlwr(strdup(szSubstringToSearchFor));
+
+   if ( szCopy1 == NULL || szCopy2 == NULL  ) {
+      // another option is to raise an exception here
+      free((void*)szCopy1);
+      free((void*)szCopy2);
+      return NULL;
+   }
+
+   pPos = strstr((const char*)szCopy1, (const char*)szCopy2);
+
+   if ( pPos != NULL ) {
+      // map to the original string
+      pPos = szStringToBeSearched + (pPos - szCopy1);
+   }
+
+   free((void*)szCopy1);
+   free((void*)szCopy2);
+
+   return pPos;
+} // stristr(...)
+