GNU bug report logs - #13461
Subject: 24.2; highlight lines regexp does not highlight all lines

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Package: emacs; Severity: minor; Reported by: Dave Franklin <adf007@HIDDEN>; dated Wed, 16 Jan 2013 16:37:03 UTC; Maintainer for emacs is bug-gnu-emacs@HIDDEN.

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From: Stefan Monnier <monnier@HIDDEN>
To: Jambunathan K <kjambunathan@HIDDEN>
Subject: Re: bug#13461: Subject: 24.2;
	highlight lines regexp does not highlight all lines
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	<5z38y1awhy.fsf@HIDDEN> <87libsz4bn.fsf@HIDDEN>
Date: Thu, 17 Jan 2013 09:36:44 -0500
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	Jan 2013 12:25:24 +0530")
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>>> I position the cursor on the first line in the file.
>>> When I execute the command: M-x highlight-lines-matching-regexp and
>>> select a regexp to use, Emacs only highlights a small fraction of lines
>>> that that match such regexp.
>> Maybe you want to increase hi-lock-highlight-range /
>> hi-lock-file-patterns-range. There may be performance consequences
>> though.
> As one scrolls through the buffer, the limit of highlight range should
> also scroll ahead.  Such a behaviour can eliminate surprises and
> double-checks.

Actually, I think that in the absence of font-lock, hi-lock should use
jit-lock, so we can get rid of hi-lock-highlight-range.


        Stefan "Ideally, we'd never use font-lock for it, but the need
                to share the `face' property makes it a bit tricky"
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#13461; Package emacs. Full text available.

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From: Jambunathan K <kjambunathan@HIDDEN>
To: Glenn Morris <rgm@HIDDEN>
Subject: Re: bug#13461: Subject: 24.2;
	highlight lines regexp does not highlight all lines
In-Reply-To: <5z38y1awhy.fsf@HIDDEN> (Glenn Morris's message of
	"Wed, 16 Jan 2013 12:06:01 -0500")
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Glenn Morris <rgm@HIDDEN> writes:

> Dave Franklin wrote:
>
>> I position the cursor on the first line in the file.
>> When I execute the command: M-x highlight-lines-matching-regexp and
>> select a regexp to use, Emacs only highlights a small fraction of lines
>> that that match such regexp.
>
> Maybe you want to increase hi-lock-highlight-range /
> hi-lock-file-patterns-range. There may be performance consequences
> though.

As one scrolls through the buffer, the end point of highlighted range
can also scroll ahead.  Such a behaviour would eliminate surprises.
--
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#13461; Package emacs. Full text available.

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From: Jambunathan K <kjambunathan@HIDDEN>
To: Glenn Morris <rgm@HIDDEN>
Subject: Re: bug#13461: Subject: 24.2;
	highlight lines regexp does not highlight all lines
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	<5z38y1awhy.fsf@HIDDEN>
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Glenn Morris <rgm@HIDDEN> writes:

> Dave Franklin wrote:
>
>> I position the cursor on the first line in the file.
>> When I execute the command: M-x highlight-lines-matching-regexp and
>> select a regexp to use, Emacs only highlights a small fraction of lines
>> that that match such regexp.
>
> Maybe you want to increase hi-lock-highlight-range /
> hi-lock-file-patterns-range. There may be performance consequences
> though.

As one scrolls through the buffer, the limit of highlight range should
also scroll ahead.  Such a behaviour can eliminate surprises and
double-checks.
--
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#13461; Package emacs. Full text available.

Message received at 13461 <at> debbugs.gnu.org:


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From: Dave Franklin <adf007@HIDDEN>
To: Glenn Morris <rgm@HIDDEN>
Subject: Re: bug#13461: Subject: 24.2; highlight lines regexp does not
	highlight all lines
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--20cf3074b9482afc0a04d36cd866
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Thank you for the response. That does the trick, I bumped it up from the
default. I suppose my issue should be closed as "Not A Bug".

Thanks again,
Dave


On Wed, Jan 16, 2013 at 12:06 PM, Glenn Morris <rgm@HIDDEN> wrote:

> Dave Franklin wrote:
>
> > I position the cursor on the first line in the file.
> > When I execute the command: M-x highlight-lines-matching-regexp and
> > select a regexp to use, Emacs only highlights a small fraction of lines
> > that that match such regexp.
>
> Maybe you want to increase hi-lock-highlight-range /
> hi-lock-file-patterns-range. There may be performance consequences
> though.
>

--20cf3074b9482afc0a04d36cd866
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Thank you for the response. That does the trick, I bumped it up from the de=
fault. I suppose my issue should be closed as &quot;Not A Bug&quot;. <br><b=
r>Thanks again,<br>Dave<br><br><br><div class=3D"gmail_quote">On Wed, Jan 1=
6, 2013 at 12:06 PM, Glenn Morris <span dir=3D"ltr">&lt;<a href=3D"mailto:r=
gm@HIDDEN" target=3D"_blank">rgm@HIDDEN</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Dave Franklin wrote:<br>
<br>
&gt; I position the cursor on the first line in the file.<br>
&gt; When I execute the command: M-x highlight-lines-matching-regexp and<br=
>
&gt; select a regexp to use, Emacs only highlights a small fraction of line=
s<br>
&gt; that that match such regexp.<br>
<br>
Maybe you want to increase hi-lock-highlight-range /<br>
hi-lock-file-patterns-range. There may be performance consequences<br>
though.<br>
</blockquote></div><br>

--20cf3074b9482afc0a04d36cd866--
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#13461; Package emacs. Full text available.

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From: Glenn Morris <rgm@HIDDEN>
To: Dave Franklin <adf007@HIDDEN>
Subject: Re: bug#13461: Subject: 24.2;
	highlight lines regexp does not highlight all lines
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	(Dave Franklin's message of "Wed, 16 Jan 2013 11:34:02 -0500")
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Dave Franklin wrote:

> I position the cursor on the first line in the file.
> When I execute the command: M-x highlight-lines-matching-regexp and
> select a regexp to use, Emacs only highlights a small fraction of lines
> that that match such regexp.

Maybe you want to increase hi-lock-highlight-range /
hi-lock-file-patterns-range. There may be performance consequences
though.
Information forwarded to bug-gnu-emacs@HIDDEN:
bug#13461; Package emacs. Full text available.

Message received at submit <at> debbugs.gnu.org:


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Subject: Subject: 24.2; highlight lines regexp does not highlight all lines
From: Dave Franklin <adf007@HIDDEN>
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--047d7b6d9f1c30d35304d36a72d2
Content-Type: text/plain; charset=ISO-8859-1

From: adf007@HIDDEN
To: bug-gnu-emacs@HIDDEN
Subject: 24.2; highlight lines regexp does not highlight all lines
--text follows this line--
This bug report will be sent to the Bug-GNU-Emacs mailing list
and the GNU bug tracker at debbugs.gnu.org.  Please check that
the From: line contains a valid email address.  After a delay of up
to one day, you should receive an acknowledgement at that address.

Please write in English if possible, as the Emacs maintainers
usually do not have translators for other languages.

Please describe exactly what actions triggered the bug, and
the precise symptoms of the bug.  If you can, give a recipe
starting from `emacs -Q':

I have loaded the windows binary:
  emacs-24.2-bin-i386.zip         07-Oct-2012 09:26   47M
I am running Windows 7 Professional Service Pack 1

I load a 10MB messages file (text) into Emacs.
I position the cursor on the first line in the file.
When I execute the command: M-x highlight-lines-matching-regexp and
select a regexp to use, Emacs only highlights a small fraction of lines
that that match such regexp. If I then I-search for the same regexp,
after several highlighted occurrences, I find more occurrences that have
NOT been highlighted. For example, my messages file contains logging
information regarding HEAD requests and HEAD responses. There are 5396
occurrences of "HEAD r" [ using command M-x count-matches ]. However,
M-x highlight-lines-matching-regexp only highlights about the first 180
of these lines beyond the current window's view.

If I then position the cursor deeper into the file and re-run the
highlight-lines-matching-regexp command USING THE SAME HIGHLIGHT COLOR,
there is no effect. However, if I use the same regexp but this time
utilize a different highlight color, then Emacs will again highlight
about 180 such occurrences, from the cursor point onward, in the new color.

Thanks,
Dave

If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
    `bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
c:/emacs/emacs-24.2/etc/DEBUG.


In GNU Emacs 24.2.1 (i386-mingw-nt6.1.7601)
 of 2012-08-28 on MARVIN
Windowing system distributor `Microsoft Corp.', version 6.1.7601
Configured using:
 `configure --with-gcc (4.6) --cflags
 -ID:/devel/emacs/libs/libXpm-3.5.8/include
 -ID:/devel/emacs/libs/libXpm-3.5.8/src
 -ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include
 -ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include
 -ID:/devel/emacs/libs/giflib-4.1.4-1/include
 -ID:/devel/emacs/libs/jpeg-6b-4/include
 -ID:/devel/emacs/libs/tiff-3.8.2-1/include
 -ID:/devel/emacs/libs/gnutls-3.0.9/include'

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: ENU
  value of $XMODIFIERS: nil
  locale-coding-system: cp1252
  default enable-multibyte-characters: t

Major mode: Fundamental

Minor modes in effect:
  tooltip-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
<down-mouse-1> <mouse-1> C-x x C-g M-x r e <tab> p
<tab> o <tab> r <tab> <return>

Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Quit
Making completion list... [3 times]

Load-path shadows:
None found.

Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail regexp-opt rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils help-mode easymenu view time-date tooltip
ediff-hook vc-hooks lisp-float-type mwheel dos-w32 disp-table ls-lisp
w32-win w32-vars tool-bar dnd fontset image fringe lisp-mode register
page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock
font-lock syntax facemenu font-core frame cham georgian utf-8-lang
misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew
greek romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs
button faces cus-face files text-properties overlay sha1 md5 base64
format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process multi-tty emacs)

--047d7b6d9f1c30d35304d36a72d2
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

From: <a href=3D"mailto:adf007@HIDDEN">adf007@HIDDEN</a><br>To:=
 <a href=3D"mailto:bug-gnu-emacs@HIDDEN">bug-gnu-emacs@HIDDEN</a><br>Subj=
ect: 24.2; highlight lines regexp does not highlight all lines<br>--text fo=
llows this line--<br>
This bug report will be sent to the Bug-GNU-Emacs mailing list<br>and the G=
NU bug tracker at <a href=3D"http://debbugs.gnu.org">debbugs.gnu.org</a>.=
=A0 Please check that<br>the From: line contains a valid email address.=A0 =
After a delay of up<br>
to one day, you should receive an acknowledgement at that address.<br><br>P=
lease write in English if possible, as the Emacs maintainers<br>usually do =
not have translators for other languages.<br><br>Please describe exactly wh=
at actions triggered the bug, and<br>
the precise symptoms of the bug.=A0 If you can, give a recipe<br>starting f=
rom `emacs -Q&#39;:<br><br>I have loaded the windows binary:<br>=A0 emacs-2=
4.2-bin-i386.zip=A0=A0=A0=A0=A0=A0=A0=A0 07-Oct-2012 09:26=A0=A0 47M<br>I a=
m running Windows 7 Professional Service Pack 1<br>
<br>I load a 10MB messages file (text) into Emacs.<br>I position the cursor=
 on the first line in the file. <br>When I execute the command: M-x highlig=
ht-lines-matching-regexp and<br>select a regexp to use, Emacs only highligh=
ts a small fraction of lines<br>
that that match such regexp. If I then I-search for the same regexp,<br>aft=
er several highlighted occurrences, I find more occurrences that have<br>NO=
T been highlighted. For example, my messages file contains logging<br>infor=
mation regarding HEAD requests and HEAD responses. There are 5396<br>
occurrences of &quot;HEAD r&quot; [ using command M-x count-matches ]. Howe=
ver,<br>M-x highlight-lines-matching-regexp only highlights about the first=
 180<br>of these lines beyond the current window&#39;s view. <br><br>If I t=
hen position the cursor deeper into the file and re-run the<br>
highlight-lines-matching-regexp command USING THE SAME HIGHLIGHT COLOR,<br>=
there is no effect. However, if I use the same regexp but this time<br>util=
ize a different highlight color, then Emacs will again highlight<br>about 1=
80 such occurrences, from the cursor point onward, in the new color.<br>
<br>Thanks,<br>Dave<br><br>If Emacs crashed, and you have the Emacs process=
 in the gdb debugger,<br>please include the output from the following gdb c=
ommands:<br>=A0=A0=A0 `bt full&#39; and `xbacktrace&#39;.<br>For informatio=
n about debugging Emacs, please read the file<br>
c:/emacs/emacs-24.2/etc/DEBUG.<br><br><br>In GNU Emacs 24.2.1 (i386-mingw-n=
t6.1.7601)<br>=A0of 2012-08-28 on MARVIN<br>Windowing system distributor `M=
icrosoft Corp.&#39;, version 6.1.7601<br>Configured using:<br>=A0`configure=
 --with-gcc (4.6) --cflags<br>
=A0-ID:/devel/emacs/libs/libXpm-3.5.8/include<br>=A0-ID:/devel/emacs/libs/l=
ibXpm-3.5.8/src<br>=A0-ID:/devel/emacs/libs/libpng-dev_1.4.3-1/include<br>=
=A0-ID:/devel/emacs/libs/zlib-dev_1.2.5-2/include<br>=A0-ID:/devel/emacs/li=
bs/giflib-4.1.4-1/include<br>
=A0-ID:/devel/emacs/libs/jpeg-6b-4/include<br>=A0-ID:/devel/emacs/libs/tiff=
-3.8.2-1/include<br>=A0-ID:/devel/emacs/libs/gnutls-3.0.9/include&#39;<br><=
br>Important settings:<br>=A0 value of $LC_ALL: nil<br>=A0 value of $LC_COL=
LATE: nil<br>
=A0 value of $LC_CTYPE: nil<br>=A0 value of $LC_MESSAGES: nil<br>=A0 value =
of $LC_MONETARY: nil<br>=A0 value of $LC_NUMERIC: nil<br>=A0 value of $LC_T=
IME: nil<br>=A0 value of $LANG: ENU<br>=A0 value of $XMODIFIERS: nil<br>=A0=
 locale-coding-system: cp1252<br>
=A0 default enable-multibyte-characters: t<br><br>Major mode: Fundamental<b=
r><br>Minor modes in effect:<br>=A0 tooltip-mode: t<br>=A0 mouse-wheel-mode=
: t<br>=A0 tool-bar-mode: t<br>=A0 menu-bar-mode: t<br>=A0 file-name-shadow=
-mode: t<br>
=A0 global-font-lock-mode: t<br>=A0 font-lock-mode: t<br>=A0 blink-cursor-m=
ode: t<br>=A0 auto-composition-mode: t<br>=A0 auto-encryption-mode: t<br>=
=A0 auto-compression-mode: t<br>=A0 line-number-mode: t<br>=A0 transient-ma=
rk-mode: t<br>
<br>Recent input:<br>&lt;down-mouse-1&gt; &lt;mouse-1&gt; C-x x C-g M-x r e=
 &lt;tab&gt; p <br>&lt;tab&gt; o &lt;tab&gt; r &lt;tab&gt; &lt;return&gt;<b=
r><br>Recent messages:<br>For information about GNU Emacs and the GNU syste=
m, type C-h C-a.<br>
Quit<br>Making completion list... [3 times]<br><br>Load-path shadows:<br>No=
ne found.<br><br>Features:<br>(shadow sort gnus-util mail-extr emacsbug mes=
sage format-spec rfc822 mml<br>mml-sec mm-decode mm-bodies mm-encode mail-p=
arse rfc2231 mailabbrev<br>
gmm-utils mailheader sendmail regexp-opt rfc2047 rfc2045 ietf-drums<br>mm-u=
til mail-prsvr mail-utils help-mode easymenu view time-date tooltip<br>edif=
f-hook vc-hooks lisp-float-type mwheel dos-w32 disp-table ls-lisp<br>w32-wi=
n w32-vars tool-bar dnd fontset image fringe lisp-mode register<br>
page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock<br>font-lo=
ck syntax facemenu font-core frame cham georgian utf-8-lang<br>misc-lang vi=
etnamese tibetan thai tai-viet lao korean japanese hebrew<br>greek romanian=
 slovak czech european ethiopic indian cyrillic chinese<br>
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer loaddefs<br=
>button faces cus-face files text-properties overlay sha1 md5 base64<br>for=
mat env code-pages mule custom widget hashtable-print-readable<br>backquote=
 make-network-process multi-tty emacs)<br>

--047d7b6d9f1c30d35304d36a72d2--
Acknowledgement sent to Dave Franklin <adf007@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-gnu-emacs@HIDDEN. Full text available.
Report forwarded to bug-gnu-emacs@HIDDEN:
bug#13461; Package emacs. Full text available.
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