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<div>/Y /setcmykcolor where { %%ifelse Use built-in operator</div>
<div> /setcmykcolor get</div>
<div> }{ %%ifelse Emulate setcmykcolor with setrgbcolor</div>
<div> { %%def</div>
<div> 1 sub 3 { %%repeat</div>
<div> 3 index add neg dup 0 lt { pop 0 } if 3 1 roll</div>
<div> } repeat setrgbcolor</div>
<div> } bind</div>
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<div>/stringbbox {gsave NP 0 0 m false charpath flattenpath</div>
<div> pathbbox 4 2 roll pop pop 1.1 mul cvi exch 1.1 mul</div>
<div> cvi exch grestore} def</div>
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<div>---</div>
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<div>Predefined untyped Y combinator appears to delete things until there is nothing left to delete. Not sure.</div>
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