GNU bug report logs - #36201
Inserting files with r *before* the address

Previous Next

To reply to this bug, email your comments to 36201 AT debbugs.gnu.org.

Toggle the display of automated, internal messages from the tracker.

Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Dan Jacobson <jidanni <at> jidanni.org>
To: bug-sed <at> gnu.org
Subject: Inserting files with r *before* the address
Date: Thu, 13 Jun 2019 19:36:37 +0800

/bla/r filename is great, but do document how to insert the file
*before* /bla/, not only just after it.

Message #8 received at 36201 <at> debbugs.gnu.org (full text, mbox):

From: Assaf Gordon <assafgordon <at> gmail.com>
To: Dan Jacobson <jidanni <at> jidanni.org>
Cc: 36201 <at> debbugs.gnu.org
Subject: Re: bug#36201: Inserting files with r *before* the address
Date: Sat, 29 Jun 2019 02:27:10 -0600

tag 36201 moreinfo
stop

Hello,

On Thu, Jun 13, 2019 at 07:36:37PM +0800, Dan Jacobson wrote:
> /bla/r filename is great, but do document how to insert the file
> *before* /bla/, not only just after it.

Off the top of my head, I can't think of a built-in way to insert a file
before an address (am I missing something?).

One could probably come up with some incantation using multiline
commands (D/G/H/N/P):
https://www.gnu.org/software/sed/manual/sed.html#Multiline-techniques

But I think this one is easier using gawk:

    $ echo FOO > bar
    $ seq 5 \
         | gawk '/5/ { while ((getline tmp < "bar")>0) { print tmp } } ; 1'
    1
    2
    3
    4
    FOO
    5

Or are you asking for a new feature of inserting a file before an
address?

regards,
 - assaf

Message #13 received at 36201 <at> debbugs.gnu.org (full text, mbox):

From: 積丹尼 Dan Jacobson <jidanni <at> jidanni.org>
To: Assaf Gordon <assafgordon <at> gmail.com>
Cc: 36201 <at> debbugs.gnu.org
Subject: Re: bug#36201: Inserting files with r *before* the address
Date: Sat, 29 Jun 2019 22:35:23 +0800

>>>>> "AG" == Assaf Gordon <assafgordon <at> gmail.com> writes:
AG> Off the top of my head, I can't think of a built-in way to insert a file
AG> before an address (am I missing something?).

AG> One could probably come up with some incantation using multiline
AG> commands (D/G/H/N/P):
AG> https://www.gnu.org/software/sed/manual/sed.html#Multiline-techniques

OK maybe at the r documentation say "The reader is welcome to add a recipe for adding
a file before the line (like i vs. a)." Else folks will wonder that
nobody thought of it.

AG> But I think this one is easier using gawk:
No fair using gawk. We're talking about sed.

AG> Or are you asking for a new feature of inserting a file before an
AG> address?

I think no more features should be added to sed as there is perl...

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.