Re: Should temporary indentation be ignored when centering?

[G. Branden Robinson]

At 2023-06-03T15:04:15+0000, Bjarni Ingi Gislason wrote:
> On Sun, May 21, 2023 at 02:52:02AM -0500, G. Branden Robinson wrote:
> > I'll be pushing a commit to comment out this incorrect statement,
> > rather than deleting it, because I think perhaps we should change
> > this behavior.
[...]
>   The false statement in "doc/groff.texi" should be removed.

I've already commented it out as I said I would.  It can confuse no one
like that.[1]

> If an indent is there, it affects finding the middle of a text in the
> output line.

...yes...who claimed otherwise?

>   One example does not proof anything.

This statement suggests to me an unfamiliarity with existence proofs and
counterexamples.  Were he alive, I would advise you not to place bets
against Karl Weierstrass.

>   Expectations are imaginations.

Brains are, among other things, simulation engines.  Your terse
utterances put me in mind of what Chomsky said of postmodernist
philosophy: "what I understand is largely [either] truism or error."[2]

> ####
> 
> .nr length \n(.lu/1n
> Line length is \n[length]n
> .br
> .nr QQ 9*\w'0'u
> 12345678901234567890123456789012345678901234567890123456789012345678901234567890
> \h'\n(QQu'1\h'\n(QQu'2\h'\n(QQu'3\h'\n(QQu'4\h'\n(QQu'5\h'\n(QQu'6\h'\n(QQu'7\h'\n(QQu'8
> .br
> .ce 4
> foo
> .\".ti -3n
> barbar
> .ti 6n
> baz
> qux
> .pl \n(nlu
> 
>   Result:
> 
> troff:../testen/prof.temp.indent:5: warning [p 1, 0.2i]: cannot break line
> troff:../testen/prof.temp.indent:6: warning [p 1, 0.3i]: cannot break line
> 
> Line length is 65n
> 12345678901234567890123456789012345678901234567890123456789012345678901234567890
>          1         2         3         4         5         6         7        
>  8
>                                foo
>                              barbar
>                                   baz
>                                qux
> 
> ####

What material fact does the foregoing illustrate that my much shorter
example in

https://lists.gnu.org/archive/html/groff/2023-05/msg00079.html

does not?

> Ignoring indent does not make sense.

What is your use case for employing temporary indentation while
centering?

Regards,
Branden

[1] 
https://git.savannah.gnu.org/cgit/groff.git/commit/doc/groff.texi?id=75b4128edc1009b3d6f0c41e482cba5611251ae8
[2] https://chomsky.info/1995____02/

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