Re: 1.23 prints some strange error

[G. Branden Robinson]

Hi Walter,

At 2023-10-26T17:21:21+0200, Walter Alejandro Iglesias wrote:
> Ah, now I understand where's the problem, as it happens to me, groff
> 1.22.4 also ingores what you're explaining.

For me, the output doesn't change, but groff 1.22.4 doesn't emit a
diagnostic.

But that's not a surprise.  After 1.22.4 was released, I added a _ton_
of diagnostics when validity problems are encountered.  I have no idea
how many.  Dozens.  Changes in _behavior_ are documented in the "NEWS"
file.  If there was any change to formatting not documented there, I
would very much like to know about it.

I updated your doc.tr file to test this claim.

$ cat ./doc.tr
.mso list.tr
.nr i 49 -1
.while \n+i \{\
ahí
.\}
$ /usr/bin/nroff -v
GNU nroff (groff) version 1.22.4
$ /usr/bin/nroff -M. ./doc.tr | head -n 3
ahà  ahà  ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahÃ
ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà  ahà  ahÃ
ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahÃ
$ nroff -v
GNU nroff (groff) version 1.23.0
GNU groff version 1.23.0
Copyright (C) 2022 Free Software Foundation, Inc.
GNU groff comes with ABSOLUTELY NO WARRANTY.
You may redistribute copies of groff and its subprograms
under the terms of the GNU General Public License.
For more information about these matters, see the file
named COPYING.

called subprograms:

GNU grotty (groff) version 1.23.0
GNU troff (groff) version 1.23.0
$ nroff -M. ./doc.tr | head -n 3
troff:./list.tr:1: error: expected ordinary or special character, got an 
escaped '%'
troff:./list.tr:4: error: expected ordinary or special character, got an 
escaped '%'
ahà  ahà  ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahÃ
ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà  ahà  ahÃ
ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahà ahÃ

Regards,
Branden

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