/* -----------------------------------------------------------------------------
* See the LICENSE file for information on copyright, usage and redistribution
* of SWIG, and the README file for authors - http://www.swig.org/release.html.
*
* wchar.i
*
* Typemaps for the wchar_t type
* These are mapped to a Lua string and are passed around by value.
*
* ----------------------------------------------------------------------------- */
// note: only support for pointer right now, not fixed length strings
// TODO: determine how long a const wchar_t* is so we can write wstr2str()
// & do the output typemap
%{
#include <stdlib.h>
wchar_t* str2wstr(const char* str, int len)
{
wchar_t* p;
if (str==0 || len<1) return 0;
p=(wchar*)malloc((len+1)*sizeof(wchar_t));
if (p==0) return 0;
if (mbstowcs(p, str, len)==-1)
{
free(p);
return 0;
}
p[len]=0;
return p;
}
%}
%typemap( in, checkfn="lua_isstring" ) wchar_t*
%{
$1 = str2wstr(lua_tostring( L, $input ),lua_strlen( L, $input ));
if ($1==0) {lua_pushfstring(L,"Error in converting to wchar (arg %d)",$input);goto fail;}
%}
%typemap( freearg ) wchar_t*
%{
free($1);
%}
%typemap(typecheck) wchar_t * = char *;
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