%!PS

% begin included library code
% see https://github.com/Firedrake/postscript-libraries/
/test {
    /test.count test.count 1 add def
    {
        /test.pass test.pass 1 add def
    } {
        ( ) print
        test.count (....) cvs print
        (-fail) print
    } ifelse
} bind def

/test.start {
    print (:) print
    /test.pass 0 def
    /test.count 0 def
} bind def

/test.end {
    ( ) print
    test.count 0 gt {
        (Passed ) print
        test.pass (...) cvs print
        (/) print
        test.count (...) cvs print
        ( \() print
        test.pass 100 mul test.count idiv (...) cvs print
        (%\)) print
        (\r\n) print
    } if
} bind def


% end included library code

/digitalclock {
    2 dict begin
    /hhmm exch def
    hhmm (?) search {
        length /i exch def pop pop
        1 {
            i 0 eq {
                hhmm 1 get 51 le {
                    2
                } {
                    1
                } ifelse
                exit
            } if
            i 1 eq {
                hhmm 0 get 50 lt {
                    9
                } {
                    3
                } ifelse
                exit
            } if
            i 3 eq {
                5
                exit
            } if
            i 4 eq {
                9
                exit
            } if
            0
        } repeat
    } {
        pop 0
    } ifelse
    end
} bind def

(digitalclock) test.start
(?5:00) digitalclock 1 eq test
(?3:00) digitalclock 2 eq test
(1?:00) digitalclock 9 eq test
(2?:00) digitalclock 3 eq test
(12:?5) digitalclock 5 eq test
(12:5?) digitalclock 9 eq test
test.end