Saving physical Zle buffers to snapshot escape codes

Saving physical Zle buffers to snapshot escape codes

[Sebastian Gniazdowski]

Hello,
would it be hard to snapshot current Zle buffers (basically BUFFER and
POSTDISPLAY) sent to terminal? I.e. with all escape codes used to
drive terminal into e.g. changing color of text. Basically a
"screenshot" feature.

A user asked how to use F-Sy-H as a highlighter like pygments. That's
rather impossible currently, but I thought about at least getting
escaped Zle text into e.g. ZSH_RAW_BUFFER by calling a Zle widget, to
then e.g. use some converter and obtain HTML. This might be useful.
Maybe even pygments-like setup would be possible, Zsh would be started
in background as a server and print-out ZSH_RAW_BUFFER on demand,
after receiving request via zle -F handler.

-- 
Sebastian Gniazdowski
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Re: Saving physical Zle buffers to snapshot escape codes

[Bart Schaefer]

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Seems to me it would be possible to do this with zpty?  I don't think
there's anyplace internally where the "raw buffer" that you're describing
is stored in the form that you want here.

Re: Saving physical Zle buffers to snapshot escape codes

[Sebastian Gniazdowski]

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Wt., 7.08.2018, 14:27 użytkownik Bart Schaefer <schaefer@brasslantern.com>
napisał:

> Seems to me it would be possible to do this with zpty?  I don't think
> there's anyplace internally where the "raw buffer" that you're describing
> is stored in the form that you want here.
>

I'm thinking to approach this. I once stressed zpty a little and it
revealed limit on the output that can accumulate without reading from it
(from the pty allocated, afair).  This would be an obstacle, wouldn't it
be, or maybe you see a solution to this? It seems to limit max size of
highlighted block, basically. I now have also hard time seeing
region_higlight being applied to zpty buffer hmm

>