Re: [Matlab-emacs-discuss] Possible bug: emacs unresponsive if hit RET multiple times at the end of matlab command

[Eric L. <Eri...@ma...>]

RET is bound by comint mode, and matlab-shell just does whatever comint does.  comint is a library used for defining modes that interact with a shell like command.  I suppose something similar could be replicated in just a shell buffer if that is the case.

If it is stuck in matlab.el code, the trick will be identifying which loop it is stuck in.  Enabling debugging (M-x toggle-debug-on-quit) would help if it were possible to quit, which leads me to believe it is in a filter or one of the hooks that prevents C-g from working.

Eric

-----Original Message-----
From: Leo Alekseyev [mailto:dn...@gm...] 
Sent: Sunday, March 13, 2011 4:41 AM
To: mat...@li...
Subject: [Matlab-emacs-discuss] Possible bug: emacs unresponsive if hit RET multiple times at the end of matlab command

Tested with Matlab mode 3.3.1, several recent versions of Emacs.
Steps to reproduce:
M-x matlab shell
pause(10)
RET RET RET

Here, pause(10) can be any command that doesn't return immediate result.

Expected result: Matlab command runs in matlab-shell buffer, Emacs can
be used as normal.  Observed result: Emacs quits responding to
keyboard input until the command exits.

This Is a serious problem, as it presents an easy way to accidentally
hose your Emacs session when working with long-running commands.

Can anybody reproduce and/or comment?

--Leo

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