in reply to pre-texted <STDIN>

Do you mean something like running $ENV{VISUAL} on a buffer? In which case, yes, that should be fairly simple.

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Re^2: pre-texted <STDIN>
by ShainEdge (Novice) on Apr 04, 2020 at 11:34 UTC
    I will have to look closer into this to see what this even means. Thanks!