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Date: Sun, 23 Feb 2014 00:41:38 -0500
From: Christopher Faylor <cgf-use-the-mailinglist-please AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Clearing the buffer after quitting LESS, MAN, VIM etc.
Message-ID: <20140223054137.GA4837@ednor.casa.cgf.cx>
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On Sun, Feb 16, 2014 at 07:08:01PM -0500, Christopher Faylor wrote:
>On Mon, Feb 17, 2014 at 12:46:37AM +0400, Andrey Repin wrote:
>>Greetings, Christopher Faylor!
>>> There is still one more difference between Cygwin and, e.g., xterm
>>> though.  The scroll buffer is still there when you enter a full screen
>>> session like vim or less.  So you can scroll up to it and really cause
>>> confusion.  It's possible to fix that behavior but it would be really
>>> tricky.  I'm not sure I want to complicate the console handling code
>>> for this one corner case.
>>
>>I don't have any expertise in trickyness of this task, but I know application,
>>that does exactly this.
>>Far manager shrink console output buffer to console window size by default,
>>when starting up.
>>The file you're looking for is
>>http://farmanager.googlecode.com/svn/trunk/unicode_far/console.cpp
>
>I wasn't implying that I don't know how to do it.  It is tricky to get
>right for Cygwin.

So, I did go ahead and implement this in Cygwin by switching console
buffers.  It works great in a cmd window but not at all in a TCMD
<http://jpsoft.com/> window.  I have used jpsoftware products for longer
than I've been working on Cygwin so that's personally a bad bug for me.

I'm trying to file a bug report but I wonder if this will cause a
problem for other console programs if it doesn't work for a popular
commercial product.

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