[IPython-dev] Ascii imshow

[Evan Patterson]

On Sat, Feb 12, 2011 at 7:01 PM, Fernando Perez <fperez.net at gmail.com>wrote:

> Hi Nicolas,
>
> On Sat, Feb 12, 2011 at 1:32 AM, Nicolas Rougier
> <Nicolas.rougier at inria.fr> wrote:
> > After reading the commentaries, I realize there are still some work to do
> before the code can be properly integrated within IPython and I will try to
> make a nicer version as well as fully document it (using the template.py).
> For the git pull, I'm not very familiar with it and I don't know the proper
> command to pull or push, woudl yu have any pointer on this ?
> >
>
> Yes, the first 4 sections of our developer guide document coding and
> documentation guidelines, as well as the pull request process with
> github:
>
> http://ipython.github.com/ipython-doc/dev/development/index.html
>
> If you've never used git/github and get confused with any of the
> steps, please do let us know and we'll do our best to help.  While
> there's a little learning curve at the beginning, I think you'll find
> that learning to use git/github will pay off in many ways in your
> work.  Many scientific python projects have either already moved or
> are in the process of moving to git and/or github (numpy, ipython,
> enthought.*, nipy.*, sympy, and over the next few days matplotlib and
> scipy, likely many others too).
>
> > For making the code to work with the QT console, it would require to
> parse the string sent to the console and interpret the ascii sequences. I
> did it some time ago for a gtk/ipython console but I'm not familiar at all
> with qt. (parsing code is of course available if one want to work on it).
> >
>
> Interestingly, the behavior of the Qt console was *identical* to that
> of the Linux text console (the 'bare' screen console, outside of X11).
>  I don't know why that would be the case, just a data point for you...
>
> But for now, working in an xterm is already good.
>

The reason is that we implement the (more useful) ANSI escape sequences in
the Qt console, but not any of the xterm-specific sequences. Since most
terminal emulators implement them for compatibility reasons, so should
we---or at least we should implement the important ones. Comparing Nicolas'
code with this:

http://invisible-island.net/xterm/ctlseqs/ctlseqs.html

it look likes we need only implement two more sequences to get his code
working. I will add this to my TODO list (but as a low priority item, I'm
afraid).

Evan

>
> Cheers,
>
> f
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