mlterm VS mermaid

In XTerm, this (rightly) makes no difference. In Foot and Contour however, you still end up a line resp. a screen below where you started, if now with the correct horizontal position.

So it seems to me like what you want should work by default, except it doesn’t.

It should be possible to instead just treat the whole thing as a graphical overlay (by computing or directly asking for the character cell size, as Kirill Panov rightly admonishes me is possible with XTWINOPS) without touching the cursor; that’s what the “sixel scrolling” setting (DECSDM) is supposed to do. Then you can just manually move the cursor forward however many positions after you’re done drawing.

Except apparently the DEC manual (the VT330/340 one above) and DEC hardware contradict each other as to which setting of DECSDM (set or reset) corresponds to which scrolling state (enabled or disabled), and XTerm has implemented it according to the manual not the VT3xx[1,2,3]—then most other emulators followed suit[4]—then XTerm switched to following the hardware[5,6] (unless you and that’s what I’m seeing on my machine right now. So now you need to check if you’re on XTerm ≥ 369 or not[7]. If I’m reading the Notcurses code right, other terminals have followed suit[8].

Again, ouch.

P.S. It seems DEC had an internal doc for how their terminals should operate (DEC STD 070) [9]. It does not document DECSDM at all.

[1] https://github.com/wez/wezterm/issues/217#issuecomment-86449...

[2] https://github.com/hackerb9/lsix/issues/41

[3] https://github.com/dankamongmen/notcurses/issues/1782

[4] https://github.com/arakiken/mlterm/pull/23

[5] https://invisible-island.net/xterm/xterm.log.html#xterm_369

[6] https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h3-T...

[7] https://github.com/dankamongmen/notcurses/commit/0918fa251e2... (the correct version cutoff is 369 not 359, the patch contains a now-fixed bug)

[8] https://github.com/dankamongmen/notcurses/blob/master/src/li... (look for mentions of invertsixel)

[9] http://www.bitsavers.org/pdf/dec/standards/EL-SM070-00_DEC_S...

Mermaid - https://mermaid.js.org/

This is an Issue I opened up for a potential feature. A couple weeks ago, I added nomnoml support to ChatCraft. ChatCraft renders previews for Mermaid and Nomnoml.

Mermaid JS is a powerful JavaScript library that allows developers to create complex diagrams and visualizations using simple text and code syntax. It’s a lot like markdown, but for charts instead of plain text.

Currently, ChatCraft supports Mermaid rendering. This feature request involves adding support for nomnoml rendering. Nomnoml is similar to Mermaid, in that they're both used in generating uml diagrams.

Marimo looks and feels great!

Have you considered adding support for mermaid.js in the markdown? I tried including some mermaid.js in a `mo.md` invocation, but it didn't render the diagram :-)

https://mermaid.js.org/

This feels like the LaTeX version of Mermaid.js [0]. I can do anything with it, but I gotta learn a lot of new syntax. So, really cool! Gonna have to dig into this.

[0] https://mermaid.js.org/