Acmepipe executes a command and replaces the current Acme window's body with the output. It writes the window's body to the command's stdin and writes messages from its stderr to the window's errors file.
acmepipe [<option>...] [<command> [<argument>...]]
The options are:
-all replace the body all at once -mark mark each changed region as a separate undo step
Without a command, acmepipe uses its stdin as the output instead.
Acmepipe draws inspiration from github.com/9fans/acme/acmego, github.com/eaburns/Fmt, and github.com/rog-go/cmd/apipe.