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Subject: bug#60454: 30.0.50; `format-message' does not allow displaying "`" and "'" verbatim
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From: Ihor Radchenko <yantar92@HIDDEN>
Date: Sat, 31 Dec 2022 15:04:36 +0000
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Hi,
Following up https://list.orgmode.org/87k027af5x.fsf@localhost/T/#t
and https://git.savannah.gnu.org/cgit/emacs/org-mode.git/commit/?id=3D62dc4=
9509c8962bd2a19c4c4475fc616eebdfde8
`format-message' and thus also `warn' unconditionally replace _all_ the
instances of "`" and "'" in the message:
This acts like =E2=80=98format=E2=80=99, except it also replaces each g=
rave accent (`)
by a left quote, and each apostrophe (') by a right quote.
However, sometimes, it is desired to keep these chars literal.
For example, `org-assert-version' displays a warning that suggests Elisp
code:
(warn "...
It is recommended to put
(straight-use-package 'org)
...")
Replacing "'" is undesired here and will make copy-pasted Elisp code
incorrect.
Would it be possible to introduce some kind of escape mechanism in
`format-message' to produce literal "'" and "`" when needed?
In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.35, cairo version 1.17.6) of 2022-12-26 built on localhost
Repository revision: cc29fab3a66c59e77d0ff67c0f3e2e34ec80a03c
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101004
System Description: Gentoo Linux
--=20
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.505 (Entity 5.505) Content-Type: text/plain; charset=utf-8 X-Loop: help-debbugs@HIDDEN From: help-debbugs@HIDDEN (GNU bug Tracking System) To: Ihor Radchenko <yantar92@HIDDEN> Subject: bug#60454: Acknowledgement (30.0.50; `format-message' does not allow displaying "`" and "'" verbatim) Message-ID: <handler.60454.B.167249907319480.ack <at> debbugs.gnu.org> References: <87tu1b8vi3.fsf@localhost> X-Gnu-PR-Message: ack 60454 X-Gnu-PR-Package: emacs Reply-To: 60454 <at> debbugs.gnu.org Date: Sat, 31 Dec 2022 15:05:02 +0000 Thank you for filing a new bug report with debbugs.gnu.org. This is an automatically generated reply to let you know your message has been received. Your message is being forwarded to the package maintainers and other interested parties for their attention; they will reply in due course. As you requested using X-Debbugs-CC, your message was also forwarded to Stefan Monnier <monnier@HIDDEN> (after having been given a bug report number, if it did not have one). Your message has been sent to the package maintainer(s): bug-gnu-emacs@HIDDEN If you wish to submit further information on this problem, please send it to 60454 <at> debbugs.gnu.org. Please do not send mail to help-debbugs@HIDDEN unless you wish to report a problem with the Bug-tracking system. --=20 60454: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=3D60454 GNU Bug Tracking System Contact help-debbugs@HIDDEN with problems
X-Loop: help-debbugs@HIDDEN
Subject: bug#60454: 30.0.50; `format-message' does not allow displaying "`" and "'" verbatim
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From: Andreas Schwab <schwab@HIDDEN>
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Date: Sat, 31 Dec 2022 16:41:09 +0100
In-Reply-To: <87tu1b8vi3.fsf@localhost> (Ihor Radchenko's message of "Sat, 31
Dec 2022 15:04:36 +0000")
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On Dez 31 2022, Ihor Radchenko wrote:
> However, sometimes, it is desired to keep these chars literal.
> For example, `org-assert-version' displays a warning that suggests Elisp
> code:
>
> (warn "...
> It is recommended to put
> (straight-use-package 'org)
> ...")
The mangling only happens in the format string. Pass the text as
argument and substitute it with %s.
(warn "...
It is recommended to put
%s
..." "(straight-use-package 'org)")
--
Andreas Schwab, schwab@HIDDEN
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510 2552 DF73 E780 A9DA AEC1
"And now for something completely different."
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Subject: bug#60454: 30.0.50; `format-message' does not allow displaying "`" and "'" verbatim
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>
> Would it be possible to introduce some kind of escape mechanism in
> `format-message' to produce literal "'" and "`" when needed?
>
Just let-bind text-quoting-style:
(let ((text-quoting-style 'grave))
(format-message "foo `bar' baz"))
X-Loop: help-debbugs@HIDDEN
Subject: bug#60454: 30.0.50; `format-message' does not allow displaying "`" and "'" verbatim
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>> However, sometimes, it is desired to keep these chars literal.
>> For example, `org-assert-version' displays a warning that suggests Elisp
>> code:
>>
>> (warn "...
>> It is recommended to put
>> (straight-use-package 'org)
>> ...")
>
> The mangling only happens in the format string. Pass the text as
> argument and substitute it with %s.
>
> (warn "...
> It is recommended to put
> %s
> ..." "(straight-use-package 'org)")
That's rather cumbersome.
I think it would make a lot of sense to offer escapes like %' and %`
Stefan
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Subject: bug#60454: 30.0.50; `format-message' does not allow displaying "`" and "'" verbatim
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Gregory Heytings <gregory@HIDDEN> writes:
>> Would it be possible to introduce some kind of escape mechanism in
>> `format-message' to produce literal "'" and "`" when needed?
>>
>
> Just let-bind text-quoting-style:
>
> (let ((text-quoting-style 'grave))
> (format-message "foo `bar' baz"))
This won't work when I sometimes actually want the replacement to
happen:
(format-message "This is variable `foo', and the code 'bar")
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
X-Loop: help-debbugs@HIDDEN
Subject: bug#60454: 30.0.50; `format-message' does not allow displaying "`" and "'" verbatim
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>> Just let-bind text-quoting-style:
>>
>> (let ((text-quoting-style 'grave))
>> (format-message "foo `bar' baz"))
>
> This won't work when I sometimes actually want the replacement to=20
> happen:
>
> (format-message "This is variable `foo', and the code 'bar")
>
Indeed. If you want both literal ` ' and interpreted ` ', until Stefan's=
=20
suggestion is implemented, you can either use what Andreas suggested, or=20
use a variant of format-message such as:
(defun format-message-alt (format &rest objects)
"Format a string out of a format-string and arguments.
This acts like `format-message', which see, except that the grave
accent (\\=3D`) and apostrophe (\\=3D') can be escaped with `\\\\=E2=80=8B=
=3D',
in which case they are not replaced by the left and right quote
replacement characters specified by `text-quoting-style'."
(let* ((fq
=09 (replace-regexp-in-string
=09 "\\\\=3D`" "\uE001"
=09 (replace-regexp-in-string
=09 "\\\\=3D'" "\uE000" format)))
=09 (fm (format-message fq objects))
=09 (fu
=09 (replace-regexp-in-string
=09 "\uE001" "`"
=09 (replace-regexp-in-string
=09 "\uE000" "'" fm))))
fu))
--pZLa78qoJR--
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Subject: bug#60454: 30.0.50; `format-message' does not allow displaying "`" and "'" verbatim
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And of course, if all you need is copy-pasteable code, you can use (quote
...) instead of a literal quote: (use-package (quote foo)).
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