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Re: Weirdness in comm(1)
On Sun, Nov 29, 2009 at 01:42:08AM +0700, Robert Elz wrote:
> Date: Sat, 28 Nov 2009 18:59:39 +0100
> From: Joerg Sonnenberger <joerg%britannica.bec.de@localhost>
> Message-ID: <20091128175939.GA10476%britannica.bec.de@localhost>
> | Even for the specific case of comm you can't just strip off the
> | trailling newline. You have to remember if you had one as well and only
> | compare lines as equal if they either both or none of them has it.
> I'd fix that by having the line getting function used return the number
> of bytes consumed (not necessarily the strlen() of the returned line).
> If the lines compare equal, then compare the lengths, and use that as
> the result.
getline behaves that way. The problem here is that comm needs to compare
the two lines and the newline is not part of the logical line.
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