[metapost] nonstopmode interaction

[Troy Henderson]

>
> $TEX being just an environment variable, it could point a user-supplied
> script that runs whatever TeX engine you want, plugs in a default DVI if the
> actual tex chokes for some reasonb, and always returns succesfully.
>

Is the DVI deleted after MP runs?  I cannot find this DVI, and as a
consequence, I cannot determine its structure.  How are the labels laid out
in the DVI?  One per page?  One immediately "after" (whatever that means) on
another?

Troy
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