while (node)
{
wxChar *string = (wxChar*)node->GetData();
wxExpr *expr = new wxExpr(wxExprString, wxString(string));
listExpr->Append(expr);
while (node)
{
wxChar *string = (wxChar*)node->GetData();
wxExpr *expr = new wxExpr(wxExprString, wxString(string));
listExpr->Append(expr);