URL: <https://savannah.gnu.org/support/?111293>
Summary: Some more sed word boundary facts for the info
manual?
Group: Autoconf
Submitter: None
Submitted: Sa 26 Jul 2025 15:38:03 UTC
Priority: 5 - Unprioritized
Severity: 3 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Email: farb...@vodafonemail.de
Open/Closed: Open
Discussion Lock: Any
Operating System: None
_______________________________________________________
Follow-up Comments:
-------------------------------------------------------
Date: Sa 26 Jul 2025 15:38:03 UTC By: Anonymous
You have that table in the info manual on which word boundary regexps sed
groks on which platforms:
- Section "Limitations of Usual Tools"
- "sed"
- "Portable scripts should be aware of the inconsistencies and options for
handling word boundaries..."
I found that enlightening, and if only to remind me that there is no truly
portable solution for the platforms I need to support.
Here are some more facts on that ... for AIX 7.2 (I think, I'm bad a remebring
uname output), HP-UX IA64 11.31, Solaris 11 on x86-64. All executed on a Bash
which properly expands `$'..\n..'`:
[aixhost:~]$ uname -a
AIX aixhost 2 7 00F7BD2A4C00
[aixhost:~]$ which sed
sed is /usr/bin/sed
[aixhost:~]$ echo $'foo\noo' | sed -n '/^oo/p'
oo
[aixhost:~]$ echo $'foo\noo' | sed -n '/\<oo/p'
[aixhost:~]$ echo $'foo\noo' | sed -n '/\boo/p'
[aixhost:~]$ echo $'foo\noo' | sed -n '/[[:<:]]oo/p'
sed: Function /[[:<:]]oo/p cannot be parsed.
[hpiahost:~]$ uname -a
HP-UX hpiahost B.11.31 U ia64 3184477447 unlimited-user license
[hpiahost:~]$ which sed
sed is /usr/bin/sed
[hpiahost:~]$ echo $'foo\noo' | sed -n '/^oo/p'
oo
[hpiahost:~]$ echo $'foo\noo' | sed -n '/\<oo/p'
[hpiahost:~]$ echo $'foo\noo' | sed -n '/\boo/p'
[hpiahost:~]$ echo $'foo\noo' | sed -n '/[[:<:]]oo/p'
sed: Function /[[:<:]]oo/p cannot be parsed.
[sol11i86host:~]$ uname -a
SunOS sol11i86host 5.11 11.4.55.138.3 i86pc i386 i86pc non-global-zone
[sol11i86host:~]$ which sed
sed is /usr/bin/sed
[sol11i86host:~]$ echo $'foo\noo' | sed -n '/^oo/p'
oo
[sol11i86host:~]$ echo $'foo\noo' | sed -n '/\<oo/p'
oo
[sol11i86host:~]$ echo $'foo\noo' | sed -n '/\boo/p'
[sol11i86host:~]$ echo $'foo\noo' | sed -n '/[[:<:]]oo/p'
_______________________________________________________
Reply to this item at:
<https://savannah.gnu.org/support/?111293>
_______________________________________________
Nachricht gesendet über Savannah
https://savannah.gnu.org/
signature.asc
Description: PGP signature
