Re: problems with less

Re: problems with less

[Earnie Boyd]

--- John S Cooper <John.Cooper@eu.citrix.com> wrote:
> Since upgrading to cygwin 1.0 (on Win2K) less no longer displays properly.
> 

Is that cygwin 1.0.0 or cygwin 1.1.0?  The difference is that the cygwin 1.0.0
is the CD version and the cygwin 1.1.0 is the net release.

> I have TERM=cygwin, I have the recently posted /etc/termcap installed and my
> "DOS box" has no scrollbars.
> 
> When I `less c:/etc/termcap', the top 3 lines of the file are not shown, even
> after typing `g' (start of file).  However, if I type 'G' (end of file)
> followed by 'g' then it is shown, although searching for strings doesn't
> display the highlighted matches (they seem to be off the top of the screen).
> It's pretty much unusable really.
> 

I just tried thist using NT4 sp4, cygwin 1.1.0 and there wasn't a problem.  I
saw the head of the file, the tail of the file and even the hightlighted search
strings.  BTW, the Command window is set for 2500 lines of buffer with 50 lines
of display.

> However, this works fine with an earlier version of `less' (cygwin B20.1
> compatible?) that I found by following some links on the cygwin site.  BUT
> with
> that version, if I type /foobar<BACKSPACE> the BACKSPACE key doesn't work - I
> get ^H inserted instead, which is a little annoying, but still usable.
> 
> 

Haven't tried that version.

> Please Cc me on any replies as I'm not a member of the list.
> 

Cheers,

=====
---
   Earnie Boyd: < mailto:earnie_boyd@yahoo.com >
            __Cygwin: POSIX on Windows__
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Re: problems with less

[John S Cooper]

Earnie Boyd <earnie_boyd@yahoo.com> writes:

 > > Since upgrading to cygwin 1.0 (on Win2K) less no longer displays properly.
 > 
 > Is that cygwin 1.0.0 or cygwin 1.1.0?  The difference is that the cygwin 1.0.0
 > is the CD version and the cygwin 1.1.0 is the net release.

I pulled it off the net, so it must be 1.1.0.

 > > When I `less c:/etc/termcap', the top 3 lines of the file are not shown, even
 > > after typing `g' (start of file).  However, if I type 'G' (end of file)
 > > followed by 'g' then it is shown, although searching for strings doesn't
 > > display the highlighted matches (they seem to be off the top of the screen).
 > > It's pretty much unusable really.
 > 
 > I just tried thist using NT4 sp4, cygwin 1.1.0 and there wasn't a problem.
 > I saw the head of the file, the tail of the file and even the hightlighted
 > search strings.  BTW, the Command window is set for 2500 lines of buffer
 > with 50 lines of display.


Hmm.  I am using Win2K if that makes any difference.  It seems that the display
is always messed up for me when the file being viewed has lines that wrap
(i.e., longer than $COLUMNS, which is 80 for me).  I don't use a horizontal
scrollbar.

If I pipe a file with the majority of its lines longer than 80 characters I get
an extra newline everywhere a lines wraps, and after `G' `g', I can no longer
view the top of the buffer.  Same behavior when running under bash (as opposed
to zsh, my preferred shell).

The B20.1 `less' doesn't exhibit this behavior.  In fact, I've just discovered
that display problems with my B20.1 less only show up when I provide the -r
option.  I guess I'll revert to the B20.1 version for now...

Please Cc me on any replies as I'm not a member of the list.

    --- John


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Re: problems with less

[Michael Hirmke]

John S Cooper [John.Cooper@eu.citrix.com] wrote:

[...]
> > > When I `less c:/etc/termcap', the top 3 lines of the file are not shown,
> > > even after typing `g' (start of file).  However, if I type 'G' (end of
> > > file) followed by 'g' then it is shown, although searching for strings
> > > doesn't display the highlighted matches (they seem to be off the top of
> > > the screen). It's pretty much unusable really.
[...]
>
>Hmm.  I am using Win2K if that makes any difference.  It seems that the
>display is always messed up for me when the file being viewed has lines that

Same here!
- W2K German
- CYGWIN_NT-5.0 MIKE 1.1.1(0.19/3/2) 2000-04-24 20:21:10 i686 unknown
- TERM=linux

[...]
>
>    --- John

Bye.
Michael.
-- 
Michael Hirmke           | Telefon +49 (911) 557999
Georg-Strobel-Strasse 81 | FAX     +49 (911) 557664
90489 Nuernberg          | E-Mail  mailto:mh@mike.franken.de
                         | WWW     http://aquarius.franken.de/

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Re: problems with less

[John S Cooper]

I think the display problems I was having with `less' disappear when I do the
following:

  1. Set TERM=cygwin rather than TERM=linux.
  2. Don't use `less -r' as an alias for `less'.

Perhaps this is something for a README/FAQ?

    --- John


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Re: problems with less

[Chris Faylor]

On Tue, May 09, 2000 at 03:38:21PM +0100, John S Cooper wrote:
>
>I think the display problems I was having with `less' disappear when I do the
>following:
>
>  1. Set TERM=cygwin rather than TERM=linux.
>  2. Don't use `less -r' as an alias for `less'.
>
>Perhaps this is something for a README/FAQ?

So, if you don't go out of your way to use less in a non-standard way, it
works fine.  That doesn't seem like FAQ material to me.

cgf

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Re: problems with less

[Bob McGowan]

Chris Faylor wrote:
> 
> On Tue, May 09, 2000 at 03:38:21PM +0100, John S Cooper wrote:
> >
> >I think the display problems I was having with `less' disappear when I do the
> >following:
> >
> >  1. Set TERM=cygwin rather than TERM=linux.
> >  2. Don't use `less -r' as an alias for `less'.
> >
> >Perhaps this is something for a README/FAQ?
> 
> So, if you don't go out of your way to use less in a non-standard way, it
> works fine.  That doesn't seem like FAQ material to me.

The man page for 'less' says '-r' causes the program to output ASCII
control characters found in a file as the control character rather than
a symbol sequence like '^A', etc.  This is a standard documented
feature.  What was missing in this case was an understanding of what
this means to the terminal emulator.  For instance, if a <CR> (^R) was
embedded in a line, the remainder of the line would overwrite its
beginning.  If there is a form feed (^L if I remember correctly), the
screen might be cleared (depending on the TERM type, of course).  And so
on.

I agree that this is not a FAQ item.  The feature is already
documented.  It just requires a little analysis and thought, to
understand the potential consequences.

-- 
Bob McGowan
Staff Software Quality Engineer
VERITAS Software
rmcgowan@veritas.com

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Re: problems with less

[Earnie Boyd]

--- John S Cooper <John.Cooper@eu.citrix.com> wrote:
> Earnie Boyd <earnie_boyd@yahoo.com> writes:
> 
>  > > Since upgrading to cygwin 1.0 (on Win2K) less no longer displays
> properly.
>  > 
>  > Is that cygwin 1.0.0 or cygwin 1.1.0?  The difference is that the cygwin
> 1.0.0
>  > is the CD version and the cygwin 1.1.0 is the net release.
> 
> I pulled it off the net, so it must be 1.1.0.
> 
>  > > When I `less c:/etc/termcap', the top 3 lines of the file are not shown,
> even
>  > > after typing `g' (start of file).  However, if I type 'G' (end of file)
>  > > followed by 'g' then it is shown, although searching for strings doesn't
>  > > display the highlighted matches (they seem to be off the top of the
> screen).
>  > > It's pretty much unusable really.
>  > 
>  > I just tried thist using NT4 sp4, cygwin 1.1.0 and there wasn't a problem.
>  > I saw the head of the file, the tail of the file and even the hightlighted
>  > search strings.  BTW, the Command window is set for 2500 lines of buffer
>  > with 50 lines of display.
> 
> 
> Hmm.  I am using Win2K if that makes any difference.  It seems that the
> display
> is always messed up for me when the file being viewed has lines that wrap
> (i.e., longer than $COLUMNS, which is 80 for me).  I don't use a horizontal
> scrollbar.
> 

My COLUMNS are also 80.
My CYGWIN variable contains only nontsec.
My TERM is cygwin
The `stty' command shows:
speed 38400 baud; line = 0;
-imaxbel
-echoe -echok -echoctl -echoke

> If I pipe a file with the majority of its lines longer than 80 characters I
> get
> an extra newline everywhere a lines wraps, and after `G' `g', I can no longer
> view the top of the buffer.  Same behavior when running under bash (as
> opposed
> to zsh, my preferred shell).
> 

Line wrapping causes no problems, less is aware.

> The B20.1 `less' doesn't exhibit this behavior.  In fact, I've just
> discovered
> that display problems with my B20.1 less only show up when I provide the -r
> option.  I guess I'll revert to the B20.1 version for now...
> 

I don't know why this would work and the other not work.  AFAIK, the only
difference is that it was rebuilt with no source changes. (Ok, I suppose there
may have been some header changes.)

Regards,

=====
---
   Earnie Boyd: < mailto:earnie_boyd@yahoo.com >
            __Cygwin: POSIX on Windows__
Cygwin Newbies: < http://www.freeyellow.com/members5/gw32/index.html >
           __Minimalist GNU for Windows__
  Mingw32 List: < http://www.egroups.com/group/mingw32/ >
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problems with less

[John S Cooper]

Since upgrading to cygwin 1.0 (on Win2K) less no longer displays properly.

I have TERM=cygwin, I have the recently posted /etc/termcap installed and my
"DOS box" has no scrollbars.

When I `less c:/etc/termcap', the top 3 lines of the file are not shown, even
after typing `g' (start of file).  However, if I type 'G' (end of file)
followed by 'g' then it is shown, although searching for strings doesn't
display the highlighted matches (they seem to be off the top of the screen).
It's pretty much unusable really.

However, this works fine with an earlier version of `less' (cygwin B20.1
compatible?) that I found by following some links on the cygwin site.  BUT with
that version, if I type /foobar<BACKSPACE> the BACKSPACE key doesn't work - I
get ^H inserted instead, which is a little annoying, but still usable.


Please Cc me on any replies as I'm not a member of the list.

Thanks,

    --- John


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Re: problems with less

[Tim Prince]

I am running 1.1.0 on W2K RC2, with the cwilson standard package
installed.  My DOS box has scroll bars and is running perfectly
with less, wrap or no wrap.  I don't recall any problem before I
installed cwilson.

----- Original Message -----
From: "John S Cooper" <John.Cooper@eu.citrix.com>
To: <cygwin@sourceware.cygnus.com>
Sent: Wednesday, April 26, 2000 3:22 AM
Subject: problems with less


> Since upgrading to cygwin 1.0 (on Win2K) less no longer
displays properly.
>



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Re: problems with less

[John S Cooper]

"Tim Prince" <tprince@computer.org> writes:

 > I am running 1.1.0 on W2K RC2, with the cwilson standard package installed.
 > My DOS box has scroll bars and is running perfectly with less, wrap or no
 > wrap.  I don't recall any problem before I installed cwilson.

I've just installed the cwilson package and it doesn't even contain less.exe!

It seems odd that this only seems to affect myself and Michael Hirmke, but
seemingly nobody else.

    --- John


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Re: problems with less

[Charles S. Wilson]

usr-local doesn't contain less.exe because less.exe has been included in
the main cygwin distribution since B20.1. That doesn't fix your 'wrapped
lines' problem with it, though. On that issue, I'm just as flummoxed as
everyone else.

--Chuck


John S Cooper wrote:
> 
> "Tim Prince" <tprince@computer.org> writes:
> 
>  > I am running 1.1.0 on W2K RC2, with the cwilson standard package installed.
>  > My DOS box has scroll bars and is running perfectly with less, wrap or no
>  > wrap.  I don't recall any problem before I installed cwilson.
> 
> I've just installed the cwilson package and it doesn't even contain less.exe!
> 
> It seems odd that this only seems to affect myself and Michael Hirmke, but
> seemingly nobody else.
> 
>     --- John
> 
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