[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Bug-apl] Can't break out of the middle on a display operation
From: |
Elias Mårtenson |
Subject: |
Re: [Bug-apl] Can't break out of the middle on a display operation |
Date: |
Sun, 3 Aug 2014 21:48:08 +0800 |
Control-C is a general prefix character in Emacs. In other words, you press C-c followed by another keypress to execute a given function. C-c C-c (i.e. Control-C twice) is defined to send a single control-c to an underlying process (it's part of the framework that manages external programs, of which apl is one).
Of course, nothing prevents me from adding other keypresses that are mapped to, say, sending a double C-c to the underlying process, but it wouldn't really mesh very well with how embedded programs usually works.
That said, it's possible to send four C-c's in half a second. All I have to do is to hold C-c for a while and let the operating system's key repeat do its job. So, in a worst case scenario I just won't change anything at all. ☺
On 3 Aug 2014 21:19, "Juergen Sauermann" <
address@hidden> wrote:
Hi Elias,
mapping two ^C to one is maybe not so good an idea.
IBM APL2 distinguishes between interrupt and attention and they
have
different keys for that. interrupt interrupts execution
immediately while
attention interrupts execution at the end of the statement.
Currently GNU APL is behaving slightly differently, but the plan
is to align that long term.
Instead of two keys for interrupt and attention I found it more
convenient to have single ^C for attention
and double ^C for interrupt.
This is also why two ^C are needed to abort the display of
results.
If you eat single ^C in emacs then this would prevent attention
from being signaled.
I would propose instead that every ^C is simply passed on to GNU
APL.
/// Jürgen
On 08/02/2014 06:29 PM, Elias Mårtenson wrote:
Do you think there is a way to configure that?
Perhaps disable the double-thing when in Emacs mode? The reason
is that in Emacs mode you already have to press C-c twice to
send a sinvlde C-c to the underlying process. That means that in
order to interrupt right now I need to press it 4 times within
500 ms, which is very difficult.
Regards,
Elias
- Re: [Bug-apl] Can't break out of the middle on a display operation, Blake McBride, 2014/08/01
- Re: [Bug-apl] Can't break out of the middle on a display operation, Juergen Sauermann, 2014/08/02
- Re: [Bug-apl] Can't break out of the middle on a display operation, Blake McBride, 2014/08/02
- Re: [Bug-apl] Can't break out of the middle on a display operation, Juergen Sauermann, 2014/08/02
- Re: [Bug-apl] Can't break out of the middle on a display operation, Elias Mårtenson, 2014/08/02
- Re: [Bug-apl] Can't break out of the middle on a display operation, Juergen Sauermann, 2014/08/03
- Re: [Bug-apl] Can't break out of the middle on a display operation,
Elias Mårtenson <=
- Re: [Bug-apl] Can't break out of the middle on a display operation, Juergen Sauermann, 2014/08/04
- Re: [Bug-apl] Can't break out of the middle on a display operation, Elias Mårtenson, 2014/08/04