On Wed, Aug 12, 2015 at 09:57:18AM +0200, Rudolf Sykora wrote:
> On 12 August 2015 at 09:48, Ingo Krabbe <ikrabbe....@gmail.com> wrote:
>
> > Actually sed is a line based command and should add a newline, imho.
>
> I don't think it should add anything. For itself it should be able to count
> newlines (because of the possible use of addresses), but otherwise it
> should not do anything extra (it should be possible to pipe through
> two seds, for instance).
>
>From the POSIX description (used here as some reference), when a
line is entered in the pattern space, the trailing new line is
discarded. When the pattern space is written to stdout it seems
that implicitely the new line is restored---the POSIX description
says that the input shall be a text file; and ISTR that with an
editor, a newline is entered to the last line because a text file
is considered to be an array of newline terminated lines.
This means that it is a grey zone and depends on things that are not all
explicitely stated and that the p9 sed(1) is not, from the/some
specification, at fault.
--
Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
http://www.kergis.com/
http://www.arts-po.fr/
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