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Date: Thu, 10 Jun 2010 22:18:57 -0400
From: "Larry Hall (Cygwin)" <reply-to-list-only-lh AT cygwin DOT com>
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To: cygwin AT cygwin DOT com
Subject: Re: mintty screen size problem
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On 6/10/2010 8:06 PM, Steven Woody wrote:
> On 11 June 2010 01:31, Larry Hall (Cygwin) wrote:
>> On 6/10/2010 1:21 PM, Steven Woody wrote:
>>>
>>> On 11 June 2010 01:18, Larry Hall (Cygwin) wrote:
>>>>
>>>> On 6/10/2010 1:09 PM, Steven Woody wrote:
>>>>>
>>>>> On 10 June 2010 13:27, Andy Koppe<andy DOT koppe AT gmail DOT com>      wrote:
>>>>
>>>> <snip>
>>>>
>>>>>> The workaround is to invoke such programs through 'cygstart'.
>>>>>> Alternatively, the 'conin' wrapper mentioned in that thread should
>>>>>> work fairly well for Python.
>>>>>>
>>>>>
>>>>> Thanks.  'cygstart' works, but I have to type the full path of the
>>>>> program that I want to run as a parameter to 'cygstart'.
>>>>
>>>> You can use 'which' to get the full path name, as long as the target
>>>> is in the path.
>>>>
>>>
>>> Yes, I can. Just feel it's not easy to use (have to type many keys).
>>> On the other hand, cygstart always open another window to run the
>>> program, it's not so decent.
>>
>> That's because the Windows program you're trying to use doesn't understand
>> ptys and buffers its output as a result.  If you want to work around this
>> incompatibility, you need a console, not a tty.  'cygstart' will open a
>> console for any program that needs one.
>>
>> At this point, some inconvenience is necessary to get the output you expect
>> when you expect it.  If you're curious to learn more, you can check out the
>> email archives where this has been discussed allot.
>
> Understand, thanks for the explanation.  Just thinking for the moment
> that why not we cannot have a good terminal emulator not based on pty.

Here's the short answer - a goal of Cygwin is to provide Linux compatibility.
ptys are a part of Linux.  So ptys need to be a part of Cygwin.

There has been talk about how to trick Windows programs into thinking they
are running under a normal, Windows console (again, see the email archives
for more detail).  If someone comes up with a clever way to do this, then
Cygwin could support both concepts transparently.  We're not there yet.

-- 
Larry Hall                              http://www.rfk.com
RFK Partners, Inc.                      (508) 893-9779 - RFK Office
216 Dalton Rd.                          (508) 893-9889 - FAX
Holliston, MA 01746

_____________________________________________________________________

A: Yes.
> Q: Are you sure?
>> A: Because it reverses the logical flow of conversation.
>>> Q: Why is top posting annoying in email?

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