From: Reto Zimmermann <reto@gnu.org>
To: Stefan Kangas <stefan@marxist.se>, John Chapple <jrchapple@sympatico.ca>
Cc: "22368@debbugs.gnu.org" <22368@debbugs.gnu.org>
Subject: bug#22368: Another way to produce the same result
Date: Wed, 19 Aug 2020 13:52:22 +0200 [thread overview]
Message-ID: <a664b307-ef83-4d99-6a6a-c42e729fa688@gnu.org> (raw)
In-Reply-To: <CADwFkmmyPJf1ppWGM4pCQRdyXsNWeOXPiYwM4Avd3TROQEC2_g@mail.gmail.com>
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Thanks,
vhdl-mode is using function 'comment-region' from the ‘newcomment.el’
package. With the default value of 1 for option 'comment-padding' the
comment string "-- " is inserted, resulting in
-- -- this is a test comment
-- library ieee;
-- use ieee.std_logic_1164.all
for which uncommenting works fine. You might have changed
'comment-padding' to 0, which is when you get
---- this is a test comment
--library ieee;
--use ieee.std_logic_1164.all
For this, 'comment-region' doesn't work correctly for languages with
comment starts that contain 2 of the same characters, like "--" in VHDL
or "//" in C++. C++-mode doesn't honor the 'comment-padding' option
though and always inserts "// ", so the problem doesn't occur.
Remedies:
1. Use 1 for 'comment-padding'
2. File a bug report against 'newcomment.el'
3. Make vhdl-mode not honor option 'comment-padding'
Regards,
Reto
On 2020-08-18 13:39, Stefan Kangas wrote:
> Hi,
>
> Reto Zimmermann <reto@gnu.org> writes:
>
>> The file is missing. Could you please re-attach?
> Sorry, it was missing in my reply.
>
> You can find the file here:
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=22368#8
>
> Best regards,
> Stefan Kangas
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next prev parent reply other threads:[~2020-08-19 11:52 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-14 0:12 bug#22368: vhdl comment-uncomment problem, apparently (or not) related to 14335 and 5997 John Chapple
2016-01-14 17:10 ` bug#22368: Another way to produce the same result John Chapple
2020-08-15 5:34 ` Stefan Kangas
2020-08-18 10:43 ` Reto Zimmermann
2020-08-18 11:39 ` Stefan Kangas
2020-08-19 11:52 ` Reto Zimmermann [this message]
2021-12-02 8:48 ` bug#22368: vhdl comment-uncomment problem, apparently (or not) related to 14335 and 5997 Lars Ingebrigtsen
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