URL: <https://savannah.gnu.org/bugs/?66526>
Summary: GNU troff misinterprets conditional expressions
starting with `|`
Group: GNU roff
Submitter: gbranden
Submitted: Wed 04 Dec 2024 09:22:40 AM UTC
Category: Core
Severity: 3 - Normal
Item Group: Incorrect behaviour
Status: None
Privacy: Public
Assigned to: None
Open/Closed: Open
Discussion Lock: Any
Planned Release: None
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Follow-up Comments:
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Date: Wed 04 Dec 2024 09:22:40 AM UTC By: G. Branden Robinson <gbranden>
-- A Platonic semi-dialogue --
Is one inch greater than zero?
$ printf '.ie |1i>0 .tm yes\n.el .tm no\n' | ./build/test-groff -ww
troff:<standard input>:1: warning: missing closing delimiter in output
comparison operator; expected character '|', got a newline
no
Damn it, Branden, your naïve and ill-considered so-called reforms to _groff_
break everything everywhere all the time and I'm sick of it. You should
resign as maintainer.
$ printf '.ie |1i>0 .tm yes\n.el .tm no\n' | ~/groff-1.23.0/bin/groff -ww
troff:<standard input>:1: warning: missing closing delimiter in output
comparison operator (got a newline)
no
I've had it up to here! Just sick of your nonsense. Seven years of long
emails, obscure jokes, and detestable politics. When Trump's hillbilly MAGA
squads beat you to a pulp, I'll laugh.
$ printf '.ie |1i>0 .tm yes\n.el .tm no\n' | ~/groff-1.22.4/bin/groff -ww
troff: <standard input>:1: warning: missing closing delimiter
no
Wait--hang on...
$ printf '.ie |1i>0 .tm yes\n.el .tm no\n' | ~/groff-1.22.3/bin/groff -ww
<standard input>:1: warning: missing closing delimiter
no
STOP! Yeah, well, I never liked _groff_ anyway.
$ printf '.ie |1i>0 .tm yes\n.el .tm no\n' | ~/heirloom/bin/nroff
yes
$ printf '.ie |1i>0 .tm yes\n.el .tm no\n' | DWBHOME=~/dwb ~/dwb/bin/nroff
yes
$ pdp11 ./boot.simh
PDP-11 simulator V3.8-1
Disabling XQ
@boot
New Boot, known devices are hp ht rk rl rp tm vt
: rl(0,0)rl2unix
mem = 177856
# Restricted rights: Use, duplication, or disclosure
is subject to restrictions stated in your contract with
Western Electric Company, Inc.
Thu Sep 22 23:16:01 EDT 1988
login: dmr
$ nroff <<EOF
> .ie |1i>0 .tm yes
> .el .tm no
> EOF
yes
$
login:
Simulation stopped, PC: 002306 (MOV (SP)+,177776)
sim> quit
Goodbye
See?! Other troffs are better and always have been. I haven't typeset
anything in 20 years, or maybe ever, but one day I will, and my links won't be
pointing anywhere you have anything to do with!
I'd rather be using Seventh Edition anyway than any of this kopyleft krap! I
know who the thought leaders are and I'll be following _them_. Brogrammer
strong!
--end of semi-dialogue--
So, _melodramatis personae_ aside, this goes way back. And apparently has
seldom or never been noticed or remarked upon. I think it constitutes further
evidence that GNU _troff_ should retire support for "weird" delimiters, except
in AT&T compatibility mode. See bug #66009.
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