[9fans] Acme aborts on a pointless Edit command

[Anthony Martin <ality@pbrane.org>]

I was feeling obscene and decided to test out stupid
commands in sam and acme. Here's something I didn't
expect.

Sam:
, x g/^/m.	no change to file

Acme (Edit):
, x g/^/m.	aborts in /sys/src/cmd/acme/ecmd.c:/^move

It aborts because "move overlaps itself" but the 
question I have is, should it work like sam and
do *visually* nothing at all?


Anthony

P.S.
This came about because I was trying to find a way to
move lines matching a certain pattern to the beginning
of a file (like g/pattern/m0 in ed). Is there a nice
way to do this in sam?

Something that works like the ed command but leaves the
lines in original order, not reversed, would be even
better.

-- 
I spent a night with a blow-up girl and some LSD. -Freeheat