Re: GNU readline ability in the front end
- To: mathgroup at smc.vnet.net
- Subject: [mg73957] Re: GNU readline ability in the front end
- From: David Bailey <dave at Remove_Thisdbailey.co.uk>
- Date: Sat, 3 Mar 2007 01:22:05 -0500 (EST)
- References: <email@example.com>
Frank Hu wrote:
> I'm new to Mathematica and like it. My main complain is the Frontend
> lacking basic command line editing facilities. Specifically:
> 1. Line editing. I know there are basic Emacs key-bindings and Cmd-
> l recalls the previous input. But what about recalling all previous
> inputs? I'm not talking about re-evaluating the n-th input (In[n]),
> but actually get back what I typed and make slight modifications,
> without using the mouse.
> 2. Command history. Is there anyway to store and restore command
> history automatically, so I don't have to save every session to a
> 3. Filename auto-completion. Cmd-k completes commands, how about
> 4. Also, what's with the one-level undo? How difficult is to have
> multi-level undo?
> I know there's JMath, but it does only text. Am I missing something
> or the Frontend indeed is insufficient in this regard?
I certainly agree about undo - once you build the mechanism to do one
level undo, why not extend it to multi-level - most machines have plenty
Regarding point 1 - is it completely reasonable to require never to use
the mouse? You only have to click into a previous input cell to be able
to alter it and re-execute your code in place - or paste a copy
somewhere else and re-execute that.
I would also have thought that notebooks provide a much better facility
than a command history solution! You can always re-open a notebook and
continue to add to it - which gives you a command history spanning
I never use the In and Out functions - they seem to be a hang over from
the days when Mathematica did not have a front end. I think the answer
lies in your first sentence - use Mathematica for a couple of weeks and
you will wonder what the problem is!
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