%!PS

% begin included library code
% see https://github.com/Firedrake/postscript-libraries/
/test.start {
    print (:) print
    /test.pass 0 def
    /test.count 0 def
} 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

/deepeq {
    2 dict begin
    /a exch def
    /b exch def
    a type b type eq {
        a type /dicttype eq {
            a length b length eq {
                <<
                    a {
                        pop
                        true
                    } forall
                    b {
                        pop
                        true
                    } forall
                >>
                true exch
                {
                    pop
                    dup a exch known {
                        dup b exch known {
                            dup a exch get exch b exch get deepeq not {
                                pop false
                            } if
                        } {
                            false
                        } ifelse
                    } {
                        false
                    } ifelse
                } forall
            } {
                false
            } ifelse
        } {
            a type dup /arraytype eq exch /stringtype eq or {
                a length b length eq {
                    true
                    0 1 a length 1 sub {
                        dup a exch get exch b exch get deepeq not {
                            pop false
                            exit
                        } if
                    } for
                } {
                    false
                } ifelse
            } {
                a b eq
            } ifelse
        } ifelse
    } {
        false
    } ifelse
    end
} bind def

/values { % dict -> array of dict values
    [ exch
      {
          exch pop
      } forall
    ]
} bind def

/safestring {
    dup length string cvs
} 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

/apush.right { % [a b] c -> [a b c]
    exch
    [ exch aload length 2 add -1 roll ]
} bind def


% end included library code

/oddstring {
    6 dict begin
    /ss exch def
    /ex () def
    0 1 ss 0 get length 2 sub {
        /i exch def
        /tab 0 dict def
        ss {
            /s exch def
            /v s i 1 add get s i get sub def
            tab v known {
                tab v get
            } {
                0 array
            } ifelse
            s safestring apush.right
            tab exch v exch put
        } forall
        tab values {
            dup length 1 eq {
                0 get
                /ex exch def
                exit
            } {
                pop
            } ifelse
        } forall
        ex () deepeq not {
            exit
        } if
    } for
    ex
    end
} bind def

(oddstring) test.start
[ (adc) (wzy) (abc) ] oddstring (abc) deepeq test
[ (aaa) (bob) (ccc) (ddd) ] oddstring (bob) deepeq test
test.end