* termbox bindings
@ 2017-04-23 19:43 Amirouche
2017-04-23 22:43 ` Amirouche
0 siblings, 1 reply; 3+ messages in thread
From: Amirouche @ 2017-04-23 19:43 UTC (permalink / raw)
To: guile-user@gnu.org
Azul!
I craftedsome ffi bindings for termbox [1] which is a small library
that allows to interact with the terminal (somewhat like ncurses but much
simpler).
It comes with a toy text editor with rainbow highlighting and some emacs
bindings. I tried to implement keyword highlighting but it was slow. Also
it use finger trees (a (special) persistent functional datastructure from
pfds) to represent the buffer [4]. The editor itself is less than 400
lines of
beautiful scheme code, so you can read it:
git clone https://github.com/amirouche/azul.scm
By the way, azul means hello in amazigh!
Hope this helps!
[1] The official repository of termbox is [2] but [3] has some bugfix
[2] https://github.com/nsf/termbox/
[3] https://github.com/tomas/termbox
[4] Custom finger tree (ft) datastructure for the buffer is in buffer.scm.
You don't need to understand ft to read the code, because I
implement higher
level procedure that interact with the ft like a regular list.
Haskell editor
use fingertrees too, but IDK exactly how they use finger trees.
The actual buffer use that indexed list datastructre two times, a
first time
to represent the lines. And another time to represent each line.
And because
chars are represented as integers the buffer is a ft of ft of integers.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: termbox bindings
2017-04-23 19:43 termbox bindings Amirouche
@ 2017-04-23 22:43 ` Amirouche
2017-04-24 19:15 ` Amirouche
0 siblings, 1 reply; 3+ messages in thread
From: Amirouche @ 2017-04-23 22:43 UTC (permalink / raw)
To: guile-user
Le 23/04/2017 à 21:43, Amirouche a écrit :
> Azul!
>
> I crafted some ffi bindings for termbox [1] which is a small library
> that allows to interact with the terminal (somewhat like ncurses but much
> simpler).
>
> It comes with a toy text editor with rainbow highlighting and some emacs
> bindings. I tried to implement keyword highlighting but it was slow.
FWIW, I commited a better implementation, that could use some more love
that doesn't show any slow-ish behavior. It's only a "keyword"
hilighter, more
work would be required to also highlight comments and strings.
I don't want you to believe that Guile is slow in such a simple editor.
Also, there is giant bug, where it's not possible to split a line!
Here is screenshot of the thing http://imgur.com/a/mrJ9J
See you next week end for new adventures!
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