%!PS

% begin included library code
% see https://codeberg.org/Firedrake/postscript-libraries/
/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

/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


% end included library code

/prefixwords {
    1 dict begin
    /p exch def
    [ exch
      {
          p anchorsearch pop pop
      } forall
    ] length
    end
} bind def
(prefixwords) test.start
[(pay) (attention) (practice) (attend)] (at) prefixwords 2 eq test
[(janet) (julia) (java) (javascript)] (ja) prefixwords 3 eq test
test.end