Received: (at 61188) by debbugs.gnu.org; 21 Feb 2023 13:37:20 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Feb 21 08:37:20 2023 Received: from localhost ([127.0.0.1]:55023 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1pUSpb-00054l-K0 for submit <at> debbugs.gnu.org; Tue, 21 Feb 2023 08:37:20 -0500 Received: from mailout03.t-online.de ([194.25.134.81]:57062) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <bernd.rellermeyer@HIDDEN>) id 1pUSNu-0003gA-L7 for 61188 <at> debbugs.gnu.org; Tue, 21 Feb 2023 08:08:43 -0500 Received: from fwd84.dcpf.telekom.de (fwd84.aul.t-online.de [10.223.144.110]) by mailout03.t-online.de (Postfix) with SMTP id 25F881C8F0 for <61188 <at> debbugs.gnu.org>; Tue, 21 Feb 2023 14:08:41 +0100 (CET) Received: from smtpclient.apple ([62.216.210.159]) by fwd84.t-online.de with (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384 encrypted) esmtp id 1pUSNs-1WS1Wz0; Tue, 21 Feb 2023 14:08:40 +0100 From: Bernd Rellermeyer <bernd.rellermeyer@HIDDEN> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 (Mac OS X Mail 16.0 \(3731.400.51.1.1\)) Subject: bug#61188: 30.0.50; color-lighten-name seems not to work Message-Id: <287452D8-472C-49A3-8253-BAD01119C3E3@HIDDEN> Date: Tue, 21 Feb 2023 14:08:29 +0100 To: 61188 <at> debbugs.gnu.org X-Mailer: Apple Mail (2.3731.400.51.1.1) X-TOI-EXPURGATEID: 150726::1676984920-511B9A0B-8AFA4725/0/0 CLEAN NORMAL X-TOI-MSGID: 7693a2cc-fe59-490e-ab91-e17e3709f779 X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 61188 X-Mailman-Approved-At: Tue, 21 Feb 2023 08:37:15 -0500 X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) I am not happy with the new implementation of color-lighten-hsl. I think = the old implementation was correc. In my opinion there is a = misunderstanding about the argument percent. The value L itself is a = percentage, ranging from 0.0 to 1.0, and the argument percent is a = percentage point to add to the percentage L (divided by 100). E.g. if L = is 0.5 and percent is 10, the result should be 0.6 and not 0.5 * 1.1 =3D = 0.55. In the case of the black color, the result should be 0.0 + 0.1 =3D = 0.1. That is because percent is a percentage point and not a percentage. I would suggest to switch back to the old implementation.=
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
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Date: Thu, 02 Feb 2023 18:32:50 +0000
From: "Mark Bestley" <gnu@HIDDEN>
To: "Eli Zaretskii" <eliz@HIDDEN>
Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work
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--d41d5634d4c6475fab3c23861bfab159
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On Thu, 2 Feb 2023, at 15:46, Mark Bestley wrote:
> *
>
>> On 1 Feb 2023, at 17:18, Eli Zaretskii <eliz@HIDDEN> wrote:
>>
>>> Date: Wed, 01 Feb 2023 14:11:13 +0000
>>> From: "Mark Bestley" <gnu@HIDDEN>
>>> Cc: 61188 <at> debbugs.gnu.org
>>>
>>>> So I guess the current behavior is the intended one, and we should
>>>> close this bug as wontfix?
>>>
>>> No - I think the way 28.2 worked was correct. (for impact see highlight-indent.el which now does not work with a black background )
>>
>> But by changing the tests to match what Emacs does now we explicitly
>> said that we disagree, and that the current behavior is the correct
>> one.
>>
>>> What is the expected value of (color-lighten-name "Black" 100) as I don't know where that test is. I would think the test is wrong. Did it run for 28.2?
>>
>> The test is in test/lisp/color-tests.el. The expected value is
>> exactly what you said is wrong.
>>
>>> Surely lightening Black fully should give white
>>
>> How so? The 100 is the percentage of the present luminance, and if
>> that is zero, why do you expect it to become lighter?
>>
>> See also the discussion in bug#54514, which was exactly about that.
>
> I don't see a discussion there.
> But I do understand and accept the rationale for changing * color-lighten-hsl*
>
>
>
>>
>>> In 30 olor-lighten-name "Black" of any positive value gives Black - surely this cannot be correct.
>>
>> A zero multiplied by any percentage stays zero, no? If you want a
>> non-zero result, start with something close to black, but not actually
>> black.
> The issue is more with color-lighten-name and the use it has in highlight-indent.el
> Here the background colour is increased or darkened so that a new background is distinguishable from the original and it does that via varying the hue. In those terms increasing the hue from black to shades of grey and 100% takes you to white makes sense.
>
> So just multiplying hue may not give the expected result here, The old reasoning for color-by-name might make some sense but I don't think we have the rationale why that was chosen.
>
> So I understand why then change was made but I think that there will be broken code around which used color-lighten-name when emacs 29 is released.
>
> Basically manipulation of coper values is more complex than at first thought.
>
> I'll report this issue to highlight-indent.el and I think this bug can be closed,
Sorry for the further post
I looked at the old tests for color-lighten-hsl and see their rationale.
The old code added the percentage change to the hue the new code multiplies by the change.
So their is rationale to that but the comment for the function is not exact enough.
--
Mark
--d41d5634d4c6475fab3c23861bfab159
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE html><html><head><title></title><style type=3D"text/css">
p.MsoNormal,p.MsoNoSpacing{margin:0}</style></head><body><div style=3D"f=
ont-family:georgia, serif;font-size:1.266em;"><br></div><div style=3D"fo=
nt-family:georgia, serif;font-size:1.266em;"><br></div><div>On Thu, 2 Fe=
b 2023, at 15:46, Mark Bestley wrote:<br></div><blockquote type=3D"cite"=
id=3D"qt" style=3D""><ul><li style=3D"font-family:georgia, serif;font-s=
ize:1.266em;"><br></li></ul><div class=3D"qt-AppleOriginalContents" styl=
e=3D"direction:ltr;"><div><br></div><blockquote type=3D"cite"><div>On 1 =
Feb 2023, at 17:18, Eli Zaretskii <eliz@HIDDEN> wrote:<br></div><=
div><br></div><div><div><blockquote type=3D"cite"><div>Date: Wed, 01 Feb=
2023 14:11:13 +0000<br></div><div>From: "Mark Bestley" <gnu@bestley.=
co.uk><br></div><div>Cc: 61188 <at> debbugs.gnu.org<br></div><div><br></di=
v><blockquote type=3D"cite"><div>So I guess the current behavior is the =
intended one, and we should<br></div><div>close this bug as wontfix?<br>=
</div></blockquote><div><br></div><div>No - I think the way 28.2 worked =
was correct. (for impact see highlight-indent.el which now does not work=
with a black background )<br></div></blockquote><div><br></div><div>But=
by changing the tests to match what Emacs does now we explicitly<br></d=
iv><div>said that we disagree, and that the current behavior is the corr=
ect<br></div><div>one.<br></div><div><br></div><blockquote type=3D"cite"=
>What is the expected value of (color-lighten-name "Black" 100) as=
I don't know where that test is. I would think the test is wrong. Did i=
t run for 28.2?<br></blockquote><div><br></div><div>The test is in test/=
lisp/color-tests.el. The expected value is<br></div><div>exactly w=
hat you said is wrong.<br></div><div><br></div><blockquote type=3D"cite"=
>Surely lightening Black fully should give white<br></blockquote><div><b=
r></div><div>How so? The 100 is the percentage of the present lumi=
nance, and if<br></div><div>that is zero, why do you expect it to become=
lighter?<br></div><div><br></div><div>See also the discussion in bug#54=
514, which was exactly about that.<br></div></div></div></blockquote><di=
v class=3D"qt-AppleOriginalContents" style=3D"direction:ltr;"><br></div>=
<div class=3D"qt-AppleOriginalContents" style=3D"direction:ltr;">I don't=
see a discussion there.<br></div><div class=3D"qt-AppleOriginalContents=
" style=3D"direction:ltr;">But I do understand and accept the rationale =
for changing <i style=3D"color:rgb(0, 0, 0);"> color-lighten-hsl</i=
><br></div><div class=3D"qt-AppleOriginalContents" style=3D"direction:lt=
r;"><br></div><div class=3D"qt-AppleOriginalContents" style=3D"direction=
:ltr;"><br></div><div><br></div><blockquote type=3D"cite"><div><div><div=
><br></div><blockquote type=3D"cite">In 30 olor-lighten-name "Blac=
k" of any positive value gives Black - surely this cannot be correct.<br=
></blockquote><div><br></div><div>A zero multiplied by any percentage st=
ays zero, no? If you want a<br></div><div>non-zero result, start w=
ith something close to black, but not actually<br></div><div>black.<br><=
/div></div></div></blockquote></div><div class=3D"qt-AppleOriginalConten=
ts" style=3D"direction:ltr;">The issue is more with color-lighten-name a=
nd the use it has in highlight-indent.el<br></div><div class=3D"qt-Apple=
OriginalContents" style=3D"direction:ltr;">Here the background colour is=
increased or darkened so that a new background is distinguishable=
from the original and it does that via varying the hue. In those terms =
increasing the hue from black to shades of grey and 100% takes you to wh=
ite makes sense.<br></div><div class=3D"qt-AppleOriginalContents" style=3D=
"direction:ltr;"><br></div><div class=3D"qt-AppleOriginalContents" style=
=3D"direction:ltr;">So just multiplying hue may not give the expected re=
sult here, The old reasoning for color-by-name might make some sense but=
I don't think we have the rationale why that was chosen.<br></div><div =
class=3D"qt-AppleOriginalContents" style=3D"direction:ltr;"><br></div><d=
iv class=3D"qt-AppleOriginalContents" style=3D"direction:ltr;">So I unde=
rstand why then change was made but I think that there will be broken co=
de around which used <span style=3D"color:rgb(0, 0, 0);">color-ligh=
ten-name when emacs 29 is released.</span><br></div><div class=3D"qt-App=
leOriginalContents" style=3D"direction:ltr;"><span style=3D"color:rgb(0,=
0, 0);"></span><br></div><div class=3D"qt-AppleOriginalContents" style=3D=
"direction:ltr;"><span class=3D"qt-color" style=3D"color:rgb(0, 0, 0);">=
<span style=3D"">Basically manipulation of coper values is more com=
plex than at first thought.</span></span><br></div><div class=3D"qt-Appl=
eOriginalContents" style=3D"direction:ltr;"><span class=3D"qt-color" sty=
le=3D"color:rgb(0, 0, 0);"><span style=3D""></span></span><br></div><div=
class=3D"qt-AppleOriginalContents" style=3D"direction:ltr;"><span class=
=3D"qt-color" style=3D"color:rgb(0, 0, 0);"><span style=3D"">I'll report=
this issue to highlight-indent.el and I think this bug can be closed,</=
span></span><br></div></blockquote><div style=3D"font-style:normal;font-=
variant-caps:normal;font-weight:400;letter-spacing:normal;text-align:sta=
rt;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0=
px;-webkit-text-stroke-width:0px;text-decoration-line:none;color:rgb(255=
, 255, 255);font-family:Helvetica;font-size:12px;">Sorry for the further=
post <br></div><div style=3D"font-style:normal;font-variant-caps:n=
ormal;font-weight:400;letter-spacing:normal;text-align:start;text-indent=
:0px;text-transform:none;white-space:normal;word-spacing:0px;-webkit-tex=
t-stroke-width:0px;text-decoration-line:none;color:rgb(255, 255, 255);fo=
nt-family:Helvetica;font-size:12px;"><br></div><div style=3D"font-style:=
normal;font-variant-caps:normal;font-weight:400;letter-spacing:normal;te=
xt-align:start;text-indent:0px;text-transform:none;white-space:normal;wo=
rd-spacing:0px;-webkit-text-stroke-width:0px;text-decoration-line:none;c=
olor:rgb(255, 255, 255);font-family:Helvetica;font-size:12px;">I looked =
at the old tests for color-lighten-hsl and see their rationale.<br>=
</div><div style=3D"font-style:normal;font-variant-caps:normal;font-weig=
ht:400;letter-spacing:normal;text-align:start;text-indent:0px;text-trans=
form:none;white-space:normal;word-spacing:0px;-webkit-text-stroke-width:=
0px;text-decoration-line:none;color:rgb(255, 255, 255);font-family:Helve=
tica;font-size:12px;"><br></div><div style=3D"font-style:normal;font-var=
iant-caps:normal;font-weight:400;letter-spacing:normal;text-align:start;=
text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;=
-webkit-text-stroke-width:0px;text-decoration-line:none;color:rgb(255, 2=
55, 255);font-family:Helvetica;font-size:12px;">The old code added the p=
ercentage change to the hue the new code multiplies by the change.<br></=
div><div style=3D"font-style:normal;font-variant-caps:normal;font-weight=
:400;letter-spacing:normal;text-align:start;text-indent:0px;text-transfo=
rm:none;white-space:normal;word-spacing:0px;-webkit-text-stroke-width:0p=
x;text-decoration-line:none;color:rgb(255, 255, 255);font-family:Helveti=
ca;font-size:12px;">So their is rationale to that but the comment for th=
e function is not exact enough.<br></div><div id=3D"sig64320496"><div cl=
ass=3D"signature">--<br></div><div class=3D"signature">Mark<br></div><di=
v class=3D"signature"><br></div><div class=3D"signature"><br></div></div=
><div style=3D"font-family:georgia, serif;font-size:1.266em;"><br></div>=
</body></html>
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Date: Thu, 02 Feb 2023 15:46:09 +0000
From: "Mark Bestley" <gnu@HIDDEN>
To: "Eli Zaretskii" <eliz@HIDDEN>
Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work
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--c5a1985d9225444190cdb22a8fb32c52
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*
> On 1 Feb 2023, at 17:18, Eli Zaretskii <eliz@HIDDEN> wrote:
>
>> Date: Wed, 01 Feb 2023 14:11:13 +0000
>> From: "Mark Bestley" <gnu@HIDDEN>
>> Cc: 61188 <at> debbugs.gnu.org
>>
>>> So I guess the current behavior is the intended one, and we should
>>> close this bug as wontfix?
>>
>> No - I think the way 28.2 worked was correct. (for impact see highlight-indent.el which now does not work with a black background )
>
> But by changing the tests to match what Emacs does now we explicitly
> said that we disagree, and that the current behavior is the correct
> one.
>
>> What is the expected value of (color-lighten-name "Black" 100) as I don't know where that test is. I would think the test is wrong. Did it run for 28.2?
>
> The test is in test/lisp/color-tests.el. The expected value is
> exactly what you said is wrong.
>
>> Surely lightening Black fully should give white
>
> How so? The 100 is the percentage of the present luminance, and if
> that is zero, why do you expect it to become lighter?
>
> See also the discussion in bug#54514, which was exactly about that.
I don't see a discussion there.
But I do understand and accept the rationale for changing * color-lighten-hsl*
>
>> In 30 olor-lighten-name "Black" of any positive value gives Black - surely this cannot be correct.
>
> A zero multiplied by any percentage stays zero, no? If you want a
> non-zero result, start with something close to black, but not actually
> black.
The issue is more with color-lighten-name and the use it has in highlight-indent.el
Here the background colour is increased or darkened so that a new background is distinguishable from the original and it does that via varying the hue. In those terms increasing the hue from black to shades of grey and 100% takes you to white makes sense.
So just multiplying hue may not give the expected result here, The old reasoning for color-by-name might make some sense but I don't think we have the rationale why that was chosen.
So I understand why then change was made but I think that there will be broken code around which used color-lighten-name when emacs 29 is released.
Basically manipulation of coper values is more complex than at first thought.
I'll report this issue to highlight-indent.el and I think this bug can be closed,
--c5a1985d9225444190cdb22a8fb32c52
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE html><html><head><title></title><style type=3D"text/css">p.Mso=
Normal,p.MsoNoSpacing{margin:0}</style></head><body><ul><li style=3D"fon=
t-family:georgia, serif;font-size:1.266em;"><br></li></ul><div class=3D"=
AppleOriginalContents" style=3D"direction:ltr;"><div><br></div><blockquo=
te type=3D"cite"><div>On 1 Feb 2023, at 17:18, Eli Zaretskii <eliz@gn=
u.org> wrote:<br></div><div><br></div><div><div><blockquote type=3D"c=
ite"><div>Date: Wed, 01 Feb 2023 14:11:13 +0000<br></div><div>From: "Mar=
k Bestley" <gnu@HIDDEN><br></div><div>Cc: 61188@HIDDEN=
.org<br></div><div><br></div><blockquote type=3D"cite"><div>So I guess t=
he current behavior is the intended one, and we should<br></div><div>clo=
se this bug as wontfix?<br></div></blockquote><div><br></div><div>No - I=
think the way 28.2 worked was correct. (for impact see highlight-indent=
.el which now does not work with a black background )<br></div></blockqu=
ote><div><br></div><div>But by changing the tests to match what Emacs do=
es now we explicitly<br></div><div>said that we disagree, and that the c=
urrent behavior is the correct<br></div><div>one.<br></div><div><br></di=
v><blockquote type=3D"cite">What is the expected value of (color-lighten=
-name "Black" 100) as I don't know where that test is. I would thi=
nk the test is wrong. Did it run for 28.2?<br></blockquote><div><br></di=
v><div>The test is in test/lisp/color-tests.el. The expected value=
is<br></div><div>exactly what you said is wrong.<br></div><div><br></di=
v><blockquote type=3D"cite">Surely lightening Black fully should give wh=
ite<br></blockquote><div><br></div><div>How so? The 100 is the per=
centage of the present luminance, and if<br></div><div>that is zero, why=
do you expect it to become lighter?<br></div><div><br></div><div>See al=
so the discussion in bug#54514, which was exactly about that.<br></div><=
/div></div></blockquote><div class=3D"AppleOriginalContents" style=3D"di=
rection:ltr;"><br></div><div class=3D"AppleOriginalContents" style=3D"di=
rection:ltr;">I don't see a discussion there.<br></div><div class=3D"App=
leOriginalContents" style=3D"direction:ltr;">But I do understand and acc=
ept the rationale for changing <i style=3D"color:#000000;"> color-l=
ighten-hsl</i><br></div><div class=3D"AppleOriginalContents" style=3D"di=
rection:ltr;"><br></div><div class=3D"AppleOriginalContents" style=3D"di=
rection:ltr;"><br></div><div><br></div><blockquote type=3D"cite"><div><d=
iv><div><br></div><blockquote type=3D"cite">In 30 olor-lighten-name &nbs=
p;"Black" of any positive value gives Black - surely this cannot be corr=
ect.<br></blockquote><div><br></div><div>A zero multiplied by any percen=
tage stays zero, no? If you want a<br></div><div>non-zero result, =
start with something close to black, but not actually<br></div><div>blac=
k.<br></div></div></div></blockquote></div><div class=3D"AppleOriginalCo=
ntents" style=3D"direction:ltr;">The issue is more with color-lighten-na=
me and the use it has in highlight-indent.el<br></div><div class=3D"Appl=
eOriginalContents" style=3D"direction:ltr;">Here the background colour i=
s increased or darkened so that a new background is distinguishabl=
e from the original and it does that via varying the hue. In those terms=
increasing the hue from black to shades of grey and 100% takes you to w=
hite makes sense.<br></div><div class=3D"AppleOriginalContents" style=3D=
"direction:ltr;"><br></div><div class=3D"AppleOriginalContents" style=3D=
"direction:ltr;">So just multiplying hue may not give the expected resul=
t here, The old reasoning for color-by-name might make some sense but I =
don't think we have the rationale why that was chosen.<br></div><div cla=
ss=3D"AppleOriginalContents" style=3D"direction:ltr;"><br></div><div cla=
ss=3D"AppleOriginalContents" style=3D"direction:ltr;">So I understand wh=
y then change was made but I think that there will be broken code around=
which used <span style=3D"color:#000000;">color-lighten-name when =
emacs 29 is released.</span><br></div><div class=3D"AppleOriginalContent=
s" style=3D"direction:ltr;"><span style=3D"color:#000000;"></span><br></=
div><div class=3D"AppleOriginalContents" style=3D"direction:ltr;"><span =
class=3D"color" style=3D"color:#000000;"><span style=3D"">Basically mani=
pulation of coper values is more complex than at first thought.</sp=
an></span><br></div><div class=3D"AppleOriginalContents" style=3D"direct=
ion:ltr;"><span class=3D"color" style=3D"color:#000000;"><span style=3D"=
"></span></span><br></div><div class=3D"AppleOriginalContents" style=3D"=
direction:ltr;"><span class=3D"color" style=3D"color:#000000;"><span sty=
le=3D"">I'll report this issue to highlight-indent.el and I think this b=
ug can be closed,</span></span><br></div></body></html>
--c5a1985d9225444190cdb22a8fb32c52--
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
Full text available.Received: (at 61188) by debbugs.gnu.org; 1 Feb 2023 17:19:01 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Feb 01 12:19:01 2023 Received: from localhost ([127.0.0.1]:59744 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1pNGlA-0004f1-LT for submit <at> debbugs.gnu.org; Wed, 01 Feb 2023 12:19:00 -0500 Received: from eggs.gnu.org ([209.51.188.92]:49604) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1pNGl6-0004em-VM for 61188 <at> debbugs.gnu.org; Wed, 01 Feb 2023 12:18:59 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1pNGl1-0005yr-6N; Wed, 01 Feb 2023 12:18:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=EYg+WPeQ610Cm0v3FJCwjRmtbrWdSMldi738ra2rdFg=; b=Upy7wNWqcrpb 2s7phJjn7aAEJOM5qWl+5Q+J9F4pr76EHxSWqcOW5l/n6Jpiw705eoABO3IoPNXajlGIFhJUUjjlt MUzYLePBWGtebWIAVUP2dYK3I/sr5+SLKCNny1G85sVIClwc4Ob3qfSeXkiM191x/mponNPNba/7z FcHoWvjY7ajjdqnpt/gTCKcQMkFjQI8uGGEkhCgsX835w0NbB8nIyVYTp3u6W++Gwaj8CHcT4AecM S2KrjtEF6z3Rl/8XO3x83Z/Lh6wMDhdzHbhh52D6mBTO4rTYdcO6iZPORzsTPmw2ircsvqndLRD/B /R+OCrrvyztdwzTB/kUpSg==; Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1pNGl0-0007q7-L5; Wed, 01 Feb 2023 12:18:50 -0500 Date: Wed, 01 Feb 2023 19:18:50 +0200 Message-Id: <83o7qdz4lh.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: "Mark Bestley" <gnu@HIDDEN> In-Reply-To: <180e1ab1-287c-451b-bd43-6b858638df2f@HIDDEN> (gnu@HIDDEN) Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work References: <03DC6549-C68D-449B-92F8-BA3E9EB5AC5B@HIDDEN> <87wn53iq99.fsf@HIDDEN> <83o7qe1rbi.fsf@HIDDEN> <87ilgmmoj3.fsf@HIDDEN> <83wn51zfkh.fsf@HIDDEN> <180e1ab1-287c-451b-bd43-6b858638df2f@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 61188 Cc: stephen.berman@HIDDEN, 61188 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Date: Wed, 01 Feb 2023 14:11:13 +0000 > From: "Mark Bestley" <gnu@HIDDEN> > Cc: 61188 <at> debbugs.gnu.org > > > So I guess the current behavior is the intended one, and we should > > close this bug as wontfix? > > No - I think the way 28.2 worked was correct. (for impact see highlight-indent.el which now does not work with a black background ) But by changing the tests to match what Emacs does now we explicitly said that we disagree, and that the current behavior is the correct one. > What is the expected value of (color-lighten-name "Black" 100) as I don't know where that test is. I would think the test is wrong. Did it run for 28.2? The test is in test/lisp/color-tests.el. The expected value is exactly what you said is wrong. > Surely lightening Black fully should give white How so? The 100 is the percentage of the present luminance, and if that is zero, why do you expect it to become lighter? See also the discussion in bug#54514, which was exactly about that. > In 30 olor-lighten-name "Black" of any positive value gives Black - surely this cannot be correct. A zero multiplied by any percentage stays zero, no? If you want a non-zero result, start with something close to black, but not actually black.
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
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Wed, 1 Feb 2023 09:11:33 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.9.0-alpha0-107-g82c3c54364-fm-20230131.002-g82c3c543 Mime-Version: 1.0 Message-Id: <180e1ab1-287c-451b-bd43-6b858638df2f@HIDDEN> In-Reply-To: <83wn51zfkh.fsf@HIDDEN> References: <03DC6549-C68D-449B-92F8-BA3E9EB5AC5B@HIDDEN> <87wn53iq99.fsf@HIDDEN> <83o7qe1rbi.fsf@HIDDEN> <87ilgmmoj3.fsf@HIDDEN> <83wn51zfkh.fsf@HIDDEN> Date: Wed, 01 Feb 2023 14:11:13 +0000 From: "Mark Bestley" <gnu@HIDDEN> To: "Eli Zaretskii" <eliz@HIDDEN>, "Stephen Berman" <stephen.berman@HIDDEN> Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work Content-Type: text/plain X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 61188 Cc: 61188 <at> debbugs.gnu.org X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) On Wed, 1 Feb 2023, at 13:21, Eli Zaretskii wrote: >> From: Stephen Berman <stephen.berman@HIDDEN> >> Cc: gnu@HIDDEN, 61188 <at> debbugs.gnu.org >> Date: Tue, 31 Jan 2023 21:34:24 +0100 >> >> On Tue, 31 Jan 2023 20:39:45 +0200 Eli Zaretskii <eliz@HIDDEN> wrote: >> >> > If all the tests in color-tests.el pass after the change, please >> > install on the release branch. >> >> With that patch one test now fails: the one testing (color-lighten-name >> "Black" 100). This is because the tests were changed to conform to the >> code change made in response to bug#54514. So it seems there is >> disagreement about what the result of (color-lighten-name "Black" 100) >> should be. > > So I guess the current behavior is the intended one, and we should > close this bug as wontfix? No - I think the way 28.2 worked was correct. (for impact see highlight-indent.el which now does not work with a black background ) What is the expected value of (color-lighten-name "Black" 100) as I don't know where that test is. I would think the test is wrong. Did it run for 28.2? Surely lightening Black fully should give white Also look at color-lighten-name "Black" 50) in 28.2 it is a gray. In 30 olor-lighten-name "Black" of any positive value gives Black - surely this cannot be correct. -- Mark
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
Full text available.Received: (at 61188) by debbugs.gnu.org; 1 Feb 2023 13:21:59 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Wed Feb 01 08:21:59 2023 Received: from localhost ([127.0.0.1]:56853 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1pND3n-00061q-74 for submit <at> debbugs.gnu.org; Wed, 01 Feb 2023 08:21:59 -0500 Received: from eggs.gnu.org ([209.51.188.92]:40220) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1pND3l-00061c-2q for 61188 <at> debbugs.gnu.org; Wed, 01 Feb 2023 08:21:57 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1pND3f-0004E3-DN; Wed, 01 Feb 2023 08:21:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=F39tecQN7RcpMU0bv6k4OrzL+5lMUUD/+fsCECF1UnQ=; b=SgGelMKe6GVl AEahl9vxOGGLg1UJDOjBSXQQQV8n+F0pb8G3sxK/h4zj/V4kAaAVfZwlDpSE5CKbFu4ALj+S5qtwy rEtYO0DDcvR2VYoxNBXgoPiPXMYagX6mvELY54poX7zF9jPfdscS6ttQxYvyoq07oIrhJz2ZyqsLS JviBGC9rhzNTueom2mxCPBybgBnm4l31s9DxKBZ9drDVJxa7EhrUzdplaBPI56MGFFT7OBgjsvheq h+rg1dyzT97YOnQT9UuGBPx6bLC3hLn87dz+eqIU7OlcGYrelCSeVE8AHTqRkTzvMTMiPXR7XdAXG rtOmENyfjRY3DjTW8vJA/Q==; Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1pND3e-0005Yn-IC; Wed, 01 Feb 2023 08:21:50 -0500 Date: Wed, 01 Feb 2023 15:21:50 +0200 Message-Id: <83wn51zfkh.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87ilgmmoj3.fsf@HIDDEN> (message from Stephen Berman on Tue, 31 Jan 2023 21:34:24 +0100) Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work References: <03DC6549-C68D-449B-92F8-BA3E9EB5AC5B@HIDDEN> <87wn53iq99.fsf@HIDDEN> <83o7qe1rbi.fsf@HIDDEN> <87ilgmmoj3.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 61188 Cc: 61188 <at> debbugs.gnu.org, gnu@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > From: Stephen Berman <stephen.berman@HIDDEN> > Cc: gnu@HIDDEN, 61188 <at> debbugs.gnu.org > Date: Tue, 31 Jan 2023 21:34:24 +0100 > > On Tue, 31 Jan 2023 20:39:45 +0200 Eli Zaretskii <eliz@HIDDEN> wrote: > > > If all the tests in color-tests.el pass after the change, please > > install on the release branch. > > With that patch one test now fails: the one testing (color-lighten-name > "Black" 100). This is because the tests were changed to conform to the > code change made in response to bug#54514. So it seems there is > disagreement about what the result of (color-lighten-name "Black" 100) > should be. So I guess the current behavior is the intended one, and we should close this bug as wontfix?
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
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Tue, 31 Jan 2023 21:34:25 +0100 From: Stephen Berman <stephen.berman@HIDDEN> To: Eli Zaretskii <eliz@HIDDEN> Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work In-Reply-To: <83o7qe1rbi.fsf@HIDDEN> (Eli Zaretskii's message of "Tue, 31 Jan 2023 20:39:45 +0200") References: <03DC6549-C68D-449B-92F8-BA3E9EB5AC5B@HIDDEN> <87wn53iq99.fsf@HIDDEN> <83o7qe1rbi.fsf@HIDDEN> Date: Tue, 31 Jan 2023 21:34:24 +0100 Message-ID: <87ilgmmoj3.fsf@HIDDEN> User-Agent: Gnus/5.13 (Gnus v5.13) MIME-Version: 1.0 Content-Type: text/plain X-Provags-ID: V03:K1:JHVqqL7rpBemA6uio6mNfCD0QAKhd1aqTp+nCLkE8HIcewIxyKM 73PvB8T4IzgxLYczXvGLW05TZz+v8jZrZs5FjvWFrgmsVXf85RVg5MuO5EJfRNZ5yMczRNa 0sKb2QIiTeGoc84R3jKmgPrJ2i4uGWOg35kgXbJLna3pnR9+dlGyJQ93cmX7XnPM6rZBXaJ XncCKWhEbPpq12tBWitSA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:j7MFSCEcgMM=;7536G9z8PgjAdPMh3IQnS+IqecP Mw636+En88P48NF8HIGeIm1s83daBZftaqVG0leJuXTetgTpuaz2kMlk8l4S0c1Lsh3sBgrFk qge3banehCY5btNaYpYriCHbqeuuz/x7xPTnyblbanjcVdwpTua3xoyxys0TTF4Vj6v+pFe8i PWuAWH9vIgl18O2eaaH6LsRMoM/StpNCPE9bqhvnfcnmx0uPvoFxnXxqllne3kBZV0ayh3pkt YlaY+cLj8VvYx2D4/1bt39d6DcnSrKQxyDEaESgFFqIyjEyXBR3aNo/bQdahMW/Lw4QgpVwAl BOIn71A33yOIwOd7xhuxp53ookNtAYpkQPisLQ1Ncq5XkypmpZMFUN2MGaxrktY1sg/R6KeCc TOvMAyKifv7trkbHDe3VRehePCqtzMmSA+mv9nyMPz2H7rnRuIuLr9uUo7C7VSw24SnadLNBo hFHR/Tg4PkNgy8TMCrkWlXpPQYqx1uLcPC5KDytvz+27qgQ4jUGd0B/gvfGkqykgDfiPD6sN8 ghAgnkzWAaYOx3UZezfY+nOAtfDU9qY1aAia1yJ637cGHUeDSkYULy11gHeaRIDsP4ogiSgwx chnH1JORab/EDXFlu82s5PwFviw+I1/+nBF0PG7pf4zeopR1VHeMVvJboK8tzzilwwWSaFPpa xIXpL07/O/ntfLPqMCeVATQgrLytakrUG3f/jbMg28XgbiqoXotOup73Wf1i5EN7OK3Xx0qQF nY1boUj6pPLp9VXRJW0QKwog2rp9R9bBfEVICmQRUgOTcMpUfKlpEnWW8AcZWQaqensC4hF+j ZNxs3pTJpmtagTgvYglE1Xto/HRfVV17FgUL4xR43HgnviRgC7zIY4DV8qPuqQg0AzlcdMvS3 aUqPp55iVVyZ1XpRNiS3sh3sXloXyl3SFiUN18xQmKZYe79aceigeKTfoVGLkyvuYlBciOUGQ Dd4y1gyASy8G3UcL+t4t+iT7/Q0= Content-Transfer-Encoding: quoted-printable X-Spam-Score: -0.7 (/) X-Debbugs-Envelope-To: 61188 Cc: 61188 <at> debbugs.gnu.org, gnu@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -1.7 (-) On Tue, 31 Jan 2023 20:39:45 +0200 Eli Zaretskii <eliz@HIDDEN> wrote: >> Cc: 61188 <at> debbugs.gnu.org >> From: Stephen Berman <stephen.berman@HIDDEN> >> Date: Mon, 30 Jan 2023 23:58:26 +0100 >> >> On Mon, 30 Jan 2023 21:48:20 +0000 "Mark Bestley" <gnu@HIDDEN> w= rote: >> >> > Look at the results of >> > >> > (require 'color) >> > (message "reduce by 100 =3D %s" (color-lighten-name "Black" 100)) >> > (message "reduce by 0 =3D %s" (color-lighten-name "Black" 0)) >> > >> > In emacs 28.2 they give "#ffffffffffff" and 0 as expected. >> > In emacs 30.0.50 they give 0 and 0 >> >> This difference is due to this commit: >> >> commit 656c2dd66e77a5fbeb99d358017e8327401fae05 >> Author: Lars Ingebrigtsen <larsi@HIDDEN> >> Commit: Lars Ingebrigtsen <larsi@HIDDEN> >> CommitDate: Tue Mar 22 15:28:02 2022 +0100 >> >> Fix color-lighten-hsl logic >> >> * lisp/color.el (color-lighten-hsl): Lighten by percentage, >> instead of just adding the specified number to the luminance >> element (bug#54514). >> >> The patch below restores the Emacs 28 result for the above examples >> while keeping the desired result for the example in bug#54514, but I >> have no idea if it yields undesirable results in other cases. > > If all the tests in color-tests.el pass after the change, please > install on the release branch. With that patch one test now fails: the one testing (color-lighten-name "Black" 100). This is because the tests were changed to conform to the code change made in response to bug#54514. So it seems there is disagreement about what the result of (color-lighten-name "Black" 100) should be. Steve Berman
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
Full text available.Received: (at 61188) by debbugs.gnu.org; 31 Jan 2023 18:40:02 +0000 From debbugs-submit-bounces <at> debbugs.gnu.org Tue Jan 31 13:40:02 2023 Received: from localhost ([127.0.0.1]:54992 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <debbugs-submit-bounces <at> debbugs.gnu.org>) id 1pMvY1-0007ry-T2 for submit <at> debbugs.gnu.org; Tue, 31 Jan 2023 13:40:02 -0500 Received: from eggs.gnu.org ([209.51.188.92]:45342) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from <eliz@HIDDEN>) id 1pMvXx-0007rY-40 for 61188 <at> debbugs.gnu.org; Tue, 31 Jan 2023 13:40:00 -0500 Received: from fencepost.gnu.org ([2001:470:142:3::e]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1pMvXr-0007LY-Mx; Tue, 31 Jan 2023 13:39:51 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=gnu.org; s=fencepost-gnu-org; h=References:Subject:In-Reply-To:To:From:Date: mime-version; bh=1T3TdvMwHugJA9WT5iFk0a5UDC5b9FeaWlPYAZ+bEKI=; b=dua/FVsKcUv9 bw2TGx1ZNrmk3IiZBzWqsSIvHyke8OiFZVghb/jV0REKmcccoFa7q382/XhqmGmHgqtrxzWC+c3w7 5j0aqXCe7HVxEoRBfyb5GqiinmqmJY6DE9G5OtfxAFfs1y0M0KPcnONq+BkqXPmGEY7eWvIWJSkHq p1beqILIKwSxb7sd+Y0RGkdiaFQtHVA7eM80H8GZLw577LkKvlEz+vAo7fK1fMer0AtFLkO3lP/+f gpO96IR15E2ZuQ3rnxNpR8ehZtQYhWIajftXUfMR/5cfJO+bAO3vK5RKRoPh4QOuibQ04PItWvxzO OBweJkZyB+3KtYGd0OQ3Wg==; Received: from [87.69.77.57] (helo=home-c4e4a596f7) by fencepost.gnu.org with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from <eliz@HIDDEN>) id 1pMvXp-0002A6-FQ; Tue, 31 Jan 2023 13:39:50 -0500 Date: Tue, 31 Jan 2023 20:39:45 +0200 Message-Id: <83o7qe1rbi.fsf@HIDDEN> From: Eli Zaretskii <eliz@HIDDEN> To: Stephen Berman <stephen.berman@HIDDEN> In-Reply-To: <87wn53iq99.fsf@HIDDEN> (message from Stephen Berman on Mon, 30 Jan 2023 23:58:26 +0100) Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work References: <03DC6549-C68D-449B-92F8-BA3E9EB5AC5B@HIDDEN> <87wn53iq99.fsf@HIDDEN> X-Spam-Score: -2.3 (--) X-Debbugs-Envelope-To: 61188 Cc: 61188 <at> debbugs.gnu.org, gnu@HIDDEN X-BeenThere: debbugs-submit <at> debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: <debbugs-submit.debbugs.gnu.org> List-Unsubscribe: <https://debbugs.gnu.org/cgi-bin/mailman/options/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=unsubscribe> List-Archive: <https://debbugs.gnu.org/cgi-bin/mailman/private/debbugs-submit/> List-Post: <mailto:debbugs-submit <at> debbugs.gnu.org> List-Help: <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=help> List-Subscribe: <https://debbugs.gnu.org/cgi-bin/mailman/listinfo/debbugs-submit>, <mailto:debbugs-submit-request <at> debbugs.gnu.org?subject=subscribe> Errors-To: debbugs-submit-bounces <at> debbugs.gnu.org Sender: "Debbugs-submit" <debbugs-submit-bounces <at> debbugs.gnu.org> X-Spam-Score: -3.3 (---) > Cc: 61188 <at> debbugs.gnu.org > From: Stephen Berman <stephen.berman@HIDDEN> > Date: Mon, 30 Jan 2023 23:58:26 +0100 > > On Mon, 30 Jan 2023 21:48:20 +0000 "Mark Bestley" <gnu@HIDDEN> wrote: > > > Look at the results of > > > > (require 'color) > > (message "reduce by 100 = %s" (color-lighten-name "Black" 100)) > > (message "reduce by 0 = %s" (color-lighten-name "Black" 0)) > > > > In emacs 28.2 they give "#ffffffffffff" and 0 as expected. > > In emacs 30.0.50 they give 0 and 0 > > This difference is due to this commit: > > commit 656c2dd66e77a5fbeb99d358017e8327401fae05 > Author: Lars Ingebrigtsen <larsi@HIDDEN> > Commit: Lars Ingebrigtsen <larsi@HIDDEN> > CommitDate: Tue Mar 22 15:28:02 2022 +0100 > > Fix color-lighten-hsl logic > > * lisp/color.el (color-lighten-hsl): Lighten by percentage, > instead of just adding the specified number to the luminance > element (bug#54514). > > The patch below restores the Emacs 28 result for the above examples > while keeping the desired result for the example in bug#54514, but I > have no idea if it yields undesirable results in other cases. If all the tests in color-tests.el pass after the change, please install on the release branch. Thanks.
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
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From: Stephen Berman <stephen.berman@HIDDEN>
To: "Mark Bestley" <gnu@HIDDEN>
Subject: Re: bug#61188: 30.0.50; color-lighten-name seems not to work
In-Reply-To: <03DC6549-C68D-449B-92F8-BA3E9EB5AC5B@HIDDEN> (Mark
Bestley's message of "Mon, 30 Jan 2023 21:48:20 +0000")
References: <03DC6549-C68D-449B-92F8-BA3E9EB5AC5B@HIDDEN>
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--=-=-=
Content-Type: text/plain
Content-Transfer-Encoding: quoted-printable
On Mon, 30 Jan 2023 21:48:20 +0000 "Mark Bestley" <gnu@HIDDEN> wrot=
e:
> Look at the results of
>
> (require 'color)
> (message "reduce by 100 =3D %s" (color-lighten-name "Black" 100))
> (message "reduce by 0 =3D %s" (color-lighten-name "Black" 0))
>
> In emacs 28.2 they give "#ffffffffffff" and 0 as expected.
> In emacs 30.0.50 they give 0 and 0
This difference is due to this commit:
commit 656c2dd66e77a5fbeb99d358017e8327401fae05
Author: Lars Ingebrigtsen <larsi@HIDDEN>
Commit: Lars Ingebrigtsen <larsi@HIDDEN>
CommitDate: Tue Mar 22 15:28:02 2022 +0100
Fix color-lighten-hsl logic
* lisp/color.el (color-lighten-hsl): Lighten by percentage,
instead of just adding the specified number to the luminance
element (bug#54514).
The patch below restores the Emacs 28 result for the above examples
while keeping the desired result for the example in bug#54514, but I
have no idea if it yields undesirable results in other cases.
Steve Berman
--=-=-=
Content-Type: text/x-patch
Content-Disposition: inline
Content-Description: color-lighten-hsl patch
Content-Transfer-Encoding: quoted-printable
diff --git a/lisp/color.el b/lisp/color.el
index f68cf5e6b17..a251b1a24a0 100644
=2D-- a/lisp/color.el
+++ b/lisp/color.el
@@ -407,7 +407,7 @@ color-lighten-hsl
Given a color defined in terms of hue, saturation, and luminance
\(arguments H, S, and L), return a color that is PERCENT lighter.
Returns a list (HUE SATURATION LUMINANCE)."
- (list H S (color-clamp (+ L (* L (/ percent 100.0))))))
+ (list H S (color-clamp (+ L (* (if (> L 0) L 1) (/ percent 100.0))))))
(defun color-lighten-name (name percent)
"Make a color with a specified NAME lighter by PERCENT.
--=-=-=--
bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
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Subject: 30.0.50; color-lighten-name seems not to work
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--0da3468e8eea41babbb42a1c1fac88bb
Content-Type: text/plain
Look at the results of
(require 'color)
(message "reduce by 100 = %s" (color-lighten-name "Black" 100))
(message "reduce by 0 = %s" (color-lighten-name "Black" 0))
In emacs 28.2 they give "#ffffffffffff" and 0 as expected.
In emacs 30.0.50 they give 0 and 0
In GNU Emacs 30.0.50 (build 1, aarch64-apple-darwin22.2.0, NS appkit-2299.30
Version 13.1 (Build 22C65)) of 2023-01-02 built on mini20.local
Windowing system distributor 'Apple', version 10.3.2299
System Description: macOS 13.1
Configured using:
'configure --prefix=/opt/local --disable-silent-rules --without-dubs
--without-gconf --without-libotf --without-m17n-flt --with-libgmp
--with-gnutls --with-json --with-xml2 --with-modules --infodir
/opt/local/share/info/emacs --with-sqlite3 --with-webp --with-ns
--with-lcms2 --without-harfbuzz --without-imagemagick --without-xaw3d
--with-tree-sitter --with-rsvg --with-xwidgets
--with-native-compilation=aot 'CFLAGS=-pipe -Os -Wno-attributes
-isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk -arch arm64'
'CPPFLAGS=-I/opt/local/include
-isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk'
'LDFLAGS=-L/opt/local/lib -Wl,-headerpad_max_install_names -Wl,-rpath
/opt/local/lib/gcc12 -Wl,-no_pie
-Wl,-syslibroot,/Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk -arch
arm64''
Configured features:
ACL GIF GLIB GMP GNUTLS JPEG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP NOTIFY
KQUEUE NS PDUMPER PNG RSVG SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS
TREE_SITTER WEBP XIM XWIDGETS ZLIB
Important settings:
value of $LANG: en_GB.UTF-8
locale-coding-system: utf-8
Major mode: ELisp/d
--0da3468e8eea41babbb42a1c1fac88bb
Content-Type: text/html
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE html><html><head><title></title><style type=3D"text/css">p.Mso=
Normal,p.MsoNoSpacing{margin:0}</style></head><body><div><br></div><div>=
Look at the results of<br></div><div><br></div><div>(require 'color)<br>=
</div><div>(message "reduce by 100 =3D %s" (color-lighten-name "Black" 1=
00))<br></div><div>(message "reduce by 0 =3D %s" (color-lighten-name "Bl=
ack" 0))<br></div><div><br></div><div>In emacs 28.2 they give "#ffffffff=
ffff" and 0 as expected.<br></div><div>In emacs 30.0.50 they give 0 and =
0<br></div><div><br></div><div>In GNU Emacs 30.0.50 (build 1, aarch64-ap=
ple-darwin22.2.0, NS appkit-2299.30<br></div><div> Version 13.1 (Build 2=
2C65)) of 2023-01-02 built on mini20.local<br></div><div>Windowing syste=
m distributor 'Apple', version 10.3.2299<br></div><div>System Descriptio=
n:<span class=3D"Apple-converted-space"> </span> macOS 13.1<br></di=
v><div><br></div><div>Configured using:<br></div><div> 'configure --pref=
ix=3D/opt/local --disable-silent-rules --without-dubs<br></div><div> --w=
ithout-gconf --without-libotf --without-m17n-flt --with-libgmp<br></div>=
<div> --with-gnutls --with-json --with-xml2 --with-modules --infodir<br>=
</div><div> /opt/local/share/info/emacs --with-sqlite3 --with-webp --wit=
h-ns<br></div><div> --with-lcms2 --without-harfbuzz --without-imagemagic=
k --without-xaw3d<br></div><div> --with-tree-sitter --with-rsvg --with-x=
widgets<br></div><div> --with-native-compilation=3Daot 'CFLAGS=3D-pipe -=
Os -Wno-attributes<br></div><div> -isysroot/Library/Developer/CommandLin=
eTools/SDKs/MacOSX13.sdk -arch arm64'<br></div><div> 'CPPFLAGS=3D-I/opt/=
local/include<br></div><div> -isysroot/Library/Developer/CommandLineTool=
s/SDKs/MacOSX13.sdk'<br></div><div> 'LDFLAGS=3D-L/opt/local/lib -Wl,-hea=
derpad_max_install_names -Wl,-rpath<br></div><div> /opt/local/lib/gcc12 =
-Wl,-no_pie<br></div><div> -Wl,-syslibroot,/Library/Developer/CommandLin=
eTools/SDKs/MacOSX13.sdk -arch<br></div><div> arm64''<br></div><div><br>=
</div><div>Configured features:<br></div><div>ACL GIF GLIB GMP GNUTLS JP=
EG JSON LCMS2 LIBXML2 MODULES NATIVE_COMP NOTIFY<br></div><div>KQUEUE NS=
PDUMPER PNG RSVG SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS<br></div><div=
>TREE_SITTER WEBP XIM XWIDGETS ZLIB<br></div><div><br></div><div>Importa=
nt settings:<br></div><div><span class=3D"Apple-converted-space"> <=
/span> value of $LANG: en_GB.UTF-8<br></div><div><span class=3D"Apple-co=
nverted-space"> </span> locale-coding-system: utf-8<br></div><div><=
br></div><div>Major mode: ELisp/d<br></div></body></html>
--0da3468e8eea41babbb42a1c1fac88bb--
"Mark Bestley" <gnu@HIDDEN>:bug-gnu-emacs@HIDDEN.
Full text available.bug-gnu-emacs@HIDDEN:bug#61188; Package emacs.
Full text available.
GNU bug tracking system
Copyright (C) 1999 Darren O. Benham,
1997 nCipher Corporation Ltd,
1994-97 Ian Jackson.