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/* -----------------------------------------------------------------------------
* 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_t *)malloc((len+1)*sizeof(wchar_t));
if (p==0) return 0;
if (mbstowcs(p, str, len)==(size_t)-1)
{
free(p);
return 0;
}
p[len]=0;
return p;
}
%}
%typemap(in, checkfn="SWIG_lua_isnilstring", fragment="SWIG_lua_isnilstring") wchar_t *
%{
$1 = str2wstr(lua_tostring( L, $input ),lua_rawlen( L, $input ));
if ($1==0) {SWIG_Lua_pushferrstring(L,"Error in converting to wchar (arg %d)",$input);goto fail;}
%}
%typemap(freearg) wchar_t *
%{
free($1);
%}
%typemap(typecheck) wchar_t * = char *;
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