slash = "/";
if (operatingsystem == "windows") {slash = "\\";}

if (path_to_check != ""
and path_to_check != "."
and path_to_check != ".."
and findstring(path_to_check,"result")== -1
) {
    errMsg = "";
    tmp_curdir = pwd;
    try {
        cd(path_to_check);
        cd(tmp_curdir);
    } catch(errMsg);
    if (errMsg == "") {
        full_path = tmp_curdir+slash+path_to_check;
        #?"--> test --> "+full_path;
        if ( findstring(paths_string, full_path+endl) == -1) {
            #?"adding";
            isNewPath = true;
            paths_string = paths_string + full_path+endl;
        }
    }
    
}