[metapost] augment drawoptions

Taco Hoekwater taco at elvenkind.com
Mon Apr 14 15:18:24 CEST 2008

Stephan Hennig wrote:
> As can be seen macros _op_stack_A to _op_stack_C are defined, but empty,
> whereas _op_stack_D is of type "tag".  Is there a way to completely
> remove a macro, i.e., make an identifier a tag again?

   save <macro>;

Best wishes,

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