TermKit: A Rich Graphical Terminal (2011)(acko.net)
acko.net
TermKit: A Rich Graphical Terminal (2011)
https://acko.net/blog/on-termkit/
37 comments
This isn't a bad solution, and something like this is sorely needed. I completely agree with the idea that the limitations of technology from 40 years ago shouldn't be holding us back nowadays. It's no coincidence that all the major development in unix-like operating systems happened in the days when there was only 1 unix-like operating system, and it was controlled by 1 organization.
The greatest failure of Linux is that it's not an operating system, but a kernel upon which dozens of operating systems are built. It seems to me like the number one reason why people don't use Linux is that there is no central authority over user experience, and thus no way to get everyone to standardize to something. This is not even remotely a problem with Windows and Mac OS! And you can see the problems with this architecture when you realize how ancient and arcane the terminal UX is. But until we ditch it, we'll be stuck in the land of POSIX forever.
The greatest failure of Linux is that it's not an operating system, but a kernel upon which dozens of operating systems are built. It seems to me like the number one reason why people don't use Linux is that there is no central authority over user experience, and thus no way to get everyone to standardize to something. This is not even remotely a problem with Windows and Mac OS! And you can see the problems with this architecture when you realize how ancient and arcane the terminal UX is. But until we ditch it, we'll be stuck in the land of POSIX forever.
when you realize how ancient and arcane the terminal UX is. But until we ditch it, we'll be stuck in the land of POSIX forever (which isn't necessarily a bad thing).
https://sw.kovidgoyal.net/kitty/protocol-extensions/
It seems the way it will work these days is that the maintainer/s of a popular terminal emulator put some careful thought and effort into an extension; maintainers of others then recognize the benefit and follow-up with feedback and complementary implementations that over time might drive toward a de facto standard.
I'm on the fence about some of Kitty's extensions. The file transfer of TTY extension, for example, strikes me as adding little benefit over SSH but while also creating a new risk vector as it means we can no longer trust even printing to the screen.
I'm also not fond of the hyperlink extension that some terminals are adopting. We already know of the risk with emails and hyperlink URLs pointing to different locations (eg <a href="not.google.com">google.com</a>) the last thing we need is the terminal to also be exploitable.
I think some CLI users are looking at websites lustfully and wanting to emulate some of those features and while I'm all for improvements (better image support is always the obvious example but I'm all for inlining other forms of documents too) we definitely shouldn't be taking all the webs features wholesale without having a serious pause for consideration about the risks they might introduce. Particularly when a lot of organizations are still reliant on SSHing into remote servers.
I'm also not fond of the hyperlink extension that some terminals are adopting. We already know of the risk with emails and hyperlink URLs pointing to different locations (eg <a href="not.google.com">google.com</a>) the last thing we need is the terminal to also be exploitable.
I think some CLI users are looking at websites lustfully and wanting to emulate some of those features and while I'm all for improvements (better image support is always the obvious example but I'm all for inlining other forms of documents too) we definitely shouldn't be taking all the webs features wholesale without having a serious pause for consideration about the risks they might introduce. Particularly when a lot of organizations are still reliant on SSHing into remote servers.
this seems like it could have died solely because non-web developers (almost all of whom use terminals daily, and would pay attention to this) are pretty quick to realize just how awful JavaScript is, compared to the languages they use day to day.
the fewer places that JavaScript can escape to, the better, and terminals adopting anything that looks like web tech is such an alarmingly bad idea that I don't even know where to begin to address any arguments for that approach.
TermKit deserved to die because of its JavaScript nature alone.
the fewer places that JavaScript can escape to, the better, and terminals adopting anything that looks like web tech is such an alarmingly bad idea that I don't even know where to begin to address any arguments for that approach.
TermKit deserved to die because of its JavaScript nature alone.
Like you, I am not a huge fan of JS, but I'd like to say that the ideas behind TermKit — namely having a shell with richer graphical interaction (e.g. cat works for images too), semantic awareness and tokenization of commands, rich autocomplete, etc. — were ahead of their time.
Maybe it's expected that TermKit-the-project died, but I don't think that TermKit-the-idea should: whether it be bringing features from the project as extensions to existing terminals (cat for images would be nice), or building a new TermKit built on modern graphics libraries powered by WASM/Lua/bring-your-own scripting language.
Maybe it's expected that TermKit-the-project died, but I don't think that TermKit-the-idea should: whether it be bringing features from the project as extensions to existing terminals (cat for images would be nice), or building a new TermKit built on modern graphics libraries powered by WASM/Lua/bring-your-own scripting language.
I am all about the larger intent behind TermKit, but intent alone cannot carry a project to success.
A successful replacement for current textual shells will not look anything like the textual shells we have today; everything will be reimagined and will make sense, and will be very foreign to you and I.
A shell with graphics tacked on is not the revolution needed in this space. Waveform Graphics, Sixel and ReGIS (please look those up if you are not familiar) came to DEC terminals in the 1970s and 1980s, and still do not have widespread adoption. The addition of graphics isn't enough on its own, with or without new programs to blend the border between text and imagery.
A true leap is required to gain market share in this space. Simple evolution of the existing shell experience is just simply not enough. TermKit, Waveform Graphics, Sixel, and ReGIS effectively prove this.
I can not say that I know what whatever replaces our current terminals will be, but it will not look like TermKit. Or ReGIS, or Sixel.
A successful replacement for current textual shells will not look anything like the textual shells we have today; everything will be reimagined and will make sense, and will be very foreign to you and I.
A shell with graphics tacked on is not the revolution needed in this space. Waveform Graphics, Sixel and ReGIS (please look those up if you are not familiar) came to DEC terminals in the 1970s and 1980s, and still do not have widespread adoption. The addition of graphics isn't enough on its own, with or without new programs to blend the border between text and imagery.
A true leap is required to gain market share in this space. Simple evolution of the existing shell experience is just simply not enough. TermKit, Waveform Graphics, Sixel, and ReGIS effectively prove this.
I can not say that I know what whatever replaces our current terminals will be, but it will not look like TermKit. Or ReGIS, or Sixel.
> Waveform Graphics, Sixel and ReGIS (please look those up if you are not familiar) came to DEC terminals in the 1970s and 1980s, and still do not have widespread adoption.
And that’s a damn shame. Sixel might not be perfect, but it is very useful to be able to see images over ssh without having to use an X tunnel. Gnuplot with its sixel terminal in a tmux session is a decent dashboard, lightweight and which pretty much requires no setup.
And that’s a damn shame. Sixel might not be perfect, but it is very useful to be able to see images over ssh without having to use an X tunnel. Gnuplot with its sixel terminal in a tmux session is a decent dashboard, lightweight and which pretty much requires no setup.
I don't know; instead of seeing those failures as a shame, I see them as a learning opportunity. Those failures have taught us that graphics alone aren't compelling enough to drive adoption of those graphical features.
You must redesign the terminal experience from the ground up and include graphics from inception if this is ever going to take hold.
There's lots of things that are wrong with current-day terminal paradigms. For example, to turn on an option for a command, you start the command-line option with `-`. To subtract, or turn off, you use `+`. Things like this are just proof positive to me that things need to be rethought from the ground level - the very basic core principles of what a terminal is actually for need to be considered and modernized.
Lots of people don't understand that the purpose of a terminal is to have a back-and-forth conversation with the computer. You say something in the form of a command, and the computer says something back in the form of command output and/or errors. Find ways to augment that conversation meaningfully, and you'll be on the right track. Everyone knows it's a back and forth, but few realize that this is what makes a conversation.
Passing the output of one program to the input of another should not be done as text, either; it's too limiting; it's as far from strongly typed as you can get, and you require that every program include a text parsing library. Objects should be passed, ideally self-describing ones. PowerShell got this right, at least partially. When you run a command alone, without piping or writing to a file, text is shown (because without redirecting, output is inherently piped to the terminal itself, and the terminal knows how to serialize those as text) but if you pass to another program, objects are passed and used as-is. (This is more along the lines of what Alan Kay meant when he coined the term "object oriented", as I understand it.) Passing messages around.
You must redesign the terminal experience from the ground up and include graphics from inception if this is ever going to take hold.
There's lots of things that are wrong with current-day terminal paradigms. For example, to turn on an option for a command, you start the command-line option with `-`. To subtract, or turn off, you use `+`. Things like this are just proof positive to me that things need to be rethought from the ground level - the very basic core principles of what a terminal is actually for need to be considered and modernized.
Lots of people don't understand that the purpose of a terminal is to have a back-and-forth conversation with the computer. You say something in the form of a command, and the computer says something back in the form of command output and/or errors. Find ways to augment that conversation meaningfully, and you'll be on the right track. Everyone knows it's a back and forth, but few realize that this is what makes a conversation.
Passing the output of one program to the input of another should not be done as text, either; it's too limiting; it's as far from strongly typed as you can get, and you require that every program include a text parsing library. Objects should be passed, ideally self-describing ones. PowerShell got this right, at least partially. When you run a command alone, without piping or writing to a file, text is shown (because without redirecting, output is inherently piped to the terminal itself, and the terminal knows how to serialize those as text) but if you pass to another program, objects are passed and used as-is. (This is more along the lines of what Alan Kay meant when he coined the term "object oriented", as I understand it.) Passing messages around.
> PowerShell got this right
I think it's more of a trade-off between portability & ergonomics. PowerShell wins on ergonomics, but that also commits the developer to a fairly large binary encoding interface when something smaller would do. Windows does more of the lifting for me, but it also locks me into their ghetto. And even if the whole object encoding format were already wrapped up into a nice MIT licensed library, I might not want to commit to another dependency just to output a little text.
The nice thing about text is that (with UTF-8 at least), I don't have to worry about endianness (like when ssh-ing something over the wire, to a machine with a different OS and/or architecture), and we know not to trust it. Serialization/deserialization has a cost, but not a terribly steep one.
I believe the bazaar has won for a reason here.
I think it's more of a trade-off between portability & ergonomics. PowerShell wins on ergonomics, but that also commits the developer to a fairly large binary encoding interface when something smaller would do. Windows does more of the lifting for me, but it also locks me into their ghetto. And even if the whole object encoding format were already wrapped up into a nice MIT licensed library, I might not want to commit to another dependency just to output a little text.
The nice thing about text is that (with UTF-8 at least), I don't have to worry about endianness (like when ssh-ing something over the wire, to a machine with a different OS and/or architecture), and we know not to trust it. Serialization/deserialization has a cost, but not a terribly steep one.
I believe the bazaar has won for a reason here.
PowerShell is open source and available on non-Microsoft platforms, but even if it wasn't, that alone isn't enough to judge the concept of passing objects instead of text.
there are many ways to implement such an idea, and PowerShell is only one of those ways. I think PowerShell did it well, and I recognize that there could be better ways.
separate the idea from the implementation.
> ...I might not want to commit to another dependency just to output a little text.
how complex of a dependency do you think that would be? "number of dependencies" is not a valuable metric; "complexity added by dependencies" is definitely valuable, so consider that, instead. a dependency which allows textual output, if it somehow weren't already in the pipeline, would be very small indeed, and would add almost zero complexity to the project.
and I don't think individual applications are the right place to add this, anyway. the terminal/shell should know what to do if the object you pass to STDOUT is self-describing.
there are many ways to implement such an idea, and PowerShell is only one of those ways. I think PowerShell did it well, and I recognize that there could be better ways.
separate the idea from the implementation.
> ...I might not want to commit to another dependency just to output a little text.
how complex of a dependency do you think that would be? "number of dependencies" is not a valuable metric; "complexity added by dependencies" is definitely valuable, so consider that, instead. a dependency which allows textual output, if it somehow weren't already in the pipeline, would be very small indeed, and would add almost zero complexity to the project.
and I don't think individual applications are the right place to add this, anyway. the terminal/shell should know what to do if the object you pass to STDOUT is self-describing.
There's already a growing body of tools that choose JSON as their serialization format, and it all works well enough--even though most shells and terminals are oblivious to it. If the dependency is inconsequential, there you go--use JSON.
Outside of optimizing-away a pipe (built-ins vs processes), I'm not sure if the shell even needs to figure into this.
Several of the newer terminals already support base64 png/gif/jpeg escape codes (ex: https://iterm2.com/documentation-images.html). Get the different projects on-board for a new escape code to handle a full-blown MIME blob (make it work just like image, but w/ mandatory mime type prefix), then everything would be covered.
The boundaries of concern between process/shell/terminal were fairly well-drawn to begin with. Some form of mandatory interchange more structured than "get a byte, get a byte, get a byte, byte, byte" is just going to end up as another VM ghetto like emacs. I like emacs, but one is enough.
Outside of optimizing-away a pipe (built-ins vs processes), I'm not sure if the shell even needs to figure into this.
Several of the newer terminals already support base64 png/gif/jpeg escape codes (ex: https://iterm2.com/documentation-images.html). Get the different projects on-board for a new escape code to handle a full-blown MIME blob (make it work just like image, but w/ mandatory mime type prefix), then everything would be covered.
The boundaries of concern between process/shell/terminal were fairly well-drawn to begin with. Some form of mandatory interchange more structured than "get a byte, get a byte, get a byte, byte, byte" is just going to end up as another VM ghetto like emacs. I like emacs, but one is enough.
declaring that js is poison & ruins everything is so overblown. no languages deserve this unmeasured raw malice.
TermKit is an excellent set of ideas to try to push further, but there's so much friction to just getting started with it, just trying it out. where-as the rwgular terminal is just there, single process, on our systems.
as for growability, community adoption, there are more hurdles. js isnt one thing. it's a vast vast sea of libraries & tools. even if termkit does show promise, so many js developers wont quitw understand or enjoy the particular tool/library choices made. TermKit is just before React, node.js is still quite new; it's just as JS started really settling, but barely. it's hard to imagine it would have been an ideal, modernly hackable form of js.
i still think dis-unity is a strength, that it's good that we're exploring widely, that we havent fully settled & let ossification set in. but it does mean new radical ideas have much smaller communities to support them.
TermKit is an excellent set of ideas to try to push further, but there's so much friction to just getting started with it, just trying it out. where-as the rwgular terminal is just there, single process, on our systems.
as for growability, community adoption, there are more hurdles. js isnt one thing. it's a vast vast sea of libraries & tools. even if termkit does show promise, so many js developers wont quitw understand or enjoy the particular tool/library choices made. TermKit is just before React, node.js is still quite new; it's just as JS started really settling, but barely. it's hard to imagine it would have been an ideal, modernly hackable form of js.
i still think dis-unity is a strength, that it's good that we're exploring widely, that we havent fully settled & let ossification set in. but it does mean new radical ideas have much smaller communities to support them.
> declaring that js is poison & ruins everything is so overblown. no languages deserve this unmeasured raw malice.
I suggest you learn more about JavaScript, including its origin, its growth, its limitations, and its strengths, then do the same for several other languages.
if you do this, you will either see JS as the cancer it is, or you will lie to yourself and say you have "won" this discussion.
JavaScript has succeeded only because web browsers have carried it. it doesn't have enough merit to exist on its own, especially if you measure that by the JavaScript that existed early on. that was rubbish (though much simpler rubbish than today's variants) and if it weren't for the parasitic nature of JavaScript it would have died when it should have died. now, because it has been around so long and sees so much use, people believe it is a valid choice for other things. it really isn't.
I suggest you learn more about JavaScript, including its origin, its growth, its limitations, and its strengths, then do the same for several other languages.
if you do this, you will either see JS as the cancer it is, or you will lie to yourself and say you have "won" this discussion.
JavaScript has succeeded only because web browsers have carried it. it doesn't have enough merit to exist on its own, especially if you measure that by the JavaScript that existed early on. that was rubbish (though much simpler rubbish than today's variants) and if it weren't for the parasitic nature of JavaScript it would have died when it should have died. now, because it has been around so long and sees so much use, people believe it is a valid choice for other things. it really isn't.
Off topic, but can anyone recall a language in the past that garnered a similar amount of kvetching as javascript? Did ASM / LISP people feel this way about C?
I'm not a JS fan, but it doesn't strike me as any worse than any other piece of the ocean of half baked crap I have to wade through to make a working non-suckless application.
I'm not a JS fan, but it doesn't strike me as any worse than any other piece of the ocean of half baked crap I have to wade through to make a working non-suckless application.
Java ?
If we're going to silo devs into what things they happen to be working on right now, every web developer I know has a terminal open almost all the time for building javascript apps. It's not just non-web developers that use terminals.
Terminals are actually very rich interfaces - over decades they have developed features, such as Tektronix and ReGIS graphics, type features (double height, double width), alternative fonts, multiple windows, single-voice sounds, smooth scrolling (cute, but not that useful), and Sixel graphics. All these have been available since terminals were actual boxes on our desks with CRTs built-in. All that is described in the developer manuals for them.
Unfortunately, most of these features are not supported by our terminal applications (Apple's Terminal supports double width and height, at least, and xterm can do Tektronix graphics) and libraries such as ncurses allow us to write software using many of those features having to understand the control sequences (most terminals today look like xterm). If we could push for support to these features, we'd have an already proven, probably supported by ancient software that we run today but that we never saw as intended, set of standards and functionality we could rely on. If all terminals, for instance, supported sixel graphics (a horrible standard, BTW) or DRCS (a meh one), we wouldn't need font support for character graphics (Unicode v13 has new Teletext block graphics, and 4x2 mosaics will be added soon, and libraries such as VTE implement those without font support) or "powerline" symbols.
Unfortunately, most of these features are not supported by our terminal applications (Apple's Terminal supports double width and height, at least, and xterm can do Tektronix graphics) and libraries such as ncurses allow us to write software using many of those features having to understand the control sequences (most terminals today look like xterm). If we could push for support to these features, we'd have an already proven, probably supported by ancient software that we run today but that we never saw as intended, set of standards and functionality we could rely on. If all terminals, for instance, supported sixel graphics (a horrible standard, BTW) or DRCS (a meh one), we wouldn't need font support for character graphics (Unicode v13 has new Teletext block graphics, and 4x2 mosaics will be added soon, and libraries such as VTE implement those without font support) or "powerline" symbols.
This was an interesting idea. It just strikes me that there is no reference to any of the earlier ideas in extending the xNix terminal/command-line interface.
I am thinking of the BLIT terminal: https://en.wikipedia.org/wiki/Blit_(computer_terminal)
Arguably that extended to 8½: https://en.wikipedia.org/wiki/8%C2%BD_(Plan_9)
... and thence Rio: https://en.wikipedia.org/wiki/Rio_(windowing_system)
... and thence 9wm: https://en.wikipedia.org/wiki/9wm
... which leads to eight or more further references and starts to need a map. :-)
The other ancestor which seems relevant being the Oberon TUI, which informed and inspired Plan 9: http://ignorethecode.net/blog/2009/04/22/oberon/
ISTM that there is or are lots more relevant things to the general concept of "let's extend the shell to that it makes intelligent use of graphics, pointing-device input and so on" such as Symbolics OpenGenera, and come to that, Interlisp, but then you disappear down pathways (Wirthian languages, Lisps etc.) that tend to turn off xNix folks.
I am thinking of the BLIT terminal: https://en.wikipedia.org/wiki/Blit_(computer_terminal)
Arguably that extended to 8½: https://en.wikipedia.org/wiki/8%C2%BD_(Plan_9)
... and thence Rio: https://en.wikipedia.org/wiki/Rio_(windowing_system)
... and thence 9wm: https://en.wikipedia.org/wiki/9wm
... which leads to eight or more further references and starts to need a map. :-)
The other ancestor which seems relevant being the Oberon TUI, which informed and inspired Plan 9: http://ignorethecode.net/blog/2009/04/22/oberon/
ISTM that there is or are lots more relevant things to the general concept of "let's extend the shell to that it makes intelligent use of graphics, pointing-device input and so on" such as Symbolics OpenGenera, and come to that, Interlisp, but then you disappear down pathways (Wirthian languages, Lisps etc.) that tend to turn off xNix folks.
I've been using Terminology[0], which has some of these features. That's not why I'm using it though, it just happens to have the lowest latency of all terminal emulators that still does fancy font rendering on my machine.
[0] https://www.enlightenment.org/about-terminology
[0] https://www.enlightenment.org/about-terminology
Thanks for this. I didn't know Terminology had so many tricks! Reading their extended escapes as I write this.
To those who are wishing something would fill this void, I'm working on something that does overlap with this. I've already matured the shell somewhat over the last ~8 years. That shell can inline images, manage and manipulate different document formats and convert between them, understanding data types and structures like Powershell but works natively with POSIX CLI tools (which Powershell cannot).
Last year I also started playing around with WASM and building a terminal emulator in it. The idea being if I can manage the terminal emulator then I can add more features / friendlier UI/UX that might compliment non-CLI users who have been tasked with using the terminal; while power users still have access to the features of the $SHELL in their preferred terminal emulator. There is definitely overlap between what I'm doing and TermKit.
The idea of doing it this way means I'm still leveraging the foundations already in common use. Opinions about whether they're ready to be deprecated aside, it's the standard everyone already uses so trying to displace that would be an even big hurdle than even just trying to displace Bash. But at least if the standards are reused and extended it does mean people can pick and chose the items that work for them rather than forcing them into an "all or nothing" type scenario.
I'm not far down the terminal emulator route yet and it's definitely a task that is bigger than the time I personally have to commit to it. So I welcome any time and/or support anyone is willing to donate.
I should write a blog post about this at some point too....
The shell (in it's current form): https://github.com/lmorg/murex (docs on Github too but also accessible via https://murex.rocks )
Last year I also started playing around with WASM and building a terminal emulator in it. The idea being if I can manage the terminal emulator then I can add more features / friendlier UI/UX that might compliment non-CLI users who have been tasked with using the terminal; while power users still have access to the features of the $SHELL in their preferred terminal emulator. There is definitely overlap between what I'm doing and TermKit.
The idea of doing it this way means I'm still leveraging the foundations already in common use. Opinions about whether they're ready to be deprecated aside, it's the standard everyone already uses so trying to displace that would be an even big hurdle than even just trying to displace Bash. But at least if the standards are reused and extended it does mean people can pick and chose the items that work for them rather than forcing them into an "all or nothing" type scenario.
I'm not far down the terminal emulator route yet and it's definitely a task that is bigger than the time I personally have to commit to it. So I welcome any time and/or support anyone is willing to donate.
I should write a blog post about this at some point too....
The shell (in it's current form): https://github.com/lmorg/murex (docs on Github too but also accessible via https://murex.rocks )
This looks quite interesting! Thanks will check it out.
Kitty, iTerm, Mintty, Wezterm, & many others support an escape code for base64-encoded images (gif/jpg/png). Most GUI terms also support sixel--which is highly inefficient, but gets the job done. None of that is as slick as this, but I consider that to be a good thing.
Is Sixel highly inefficient? It's palettized, and encodes a 6b value in an 8b code. It'd be nice if terms supported "inline PPM"; those are (on average) only somewhat larger than their equivalent BMP. (Worst case is 2x, roughly.)
If we had an "ASCII QOIF", you could dramatically beat BMP, most of the time, and be within 33% of a PNG, in many cases.
If we had an "ASCII QOIF", you could dramatically beat BMP, most of the time, and be within 33% of a PNG, in many cases.
What it gives with RLE, it takes back with overpainting to have multiple colors on the same line. It is a hot mess.
Termkit showed great promised but the progress of the project fizzled out later. Technical limitations maybe ? Because definitely not lack of contribution. This had a lot of eyeballs
Definitely lack of contribution. Regardless of that particular project, it's a really useful set of ideas.
People just did not adopt them for other projects.
The thing that most people will possibly never understand is that the reason people do things is generally not rational. And often the better an idea is, the less likely it is to be adopted soon. So the fact that something doesn't become popular does NOT mean it doesn't have technical merit or legs. Actually it often means the opposite.
Humans, including programmers, are very similar to sheep. And I don't mean that in a joking way. I mean literally their behavior, including what tools they use for programming, is largely decided subconsciously by the activity of the other humans around them.
People just did not adopt them for other projects.
The thing that most people will possibly never understand is that the reason people do things is generally not rational. And often the better an idea is, the less likely it is to be adopted soon. So the fact that something doesn't become popular does NOT mean it doesn't have technical merit or legs. Actually it often means the opposite.
Humans, including programmers, are very similar to sheep. And I don't mean that in a joking way. I mean literally their behavior, including what tools they use for programming, is largely decided subconsciously by the activity of the other humans around them.
it's not even subconscious most of the time. "this is what everyone does, so I'll do that, too."
DomTerm (https://domterm.org) attempts to provide similar possibilities as TermKit. However, it starts with the position that it should also (and perhaps first) be a fully-functional modern mostly-xterm-compatible terminal emulator. On top of that we add rich html text, images, logical structure, "shell integration", and more.
It you like TermKit's pretty-printing of JSON, check out: https://domterm.org/saved/dt-prettynested.html
Try re-sizing the window width (to trigger smart re-breaking), and clicking the little triangles (to show/hide sub-trees of the output).
The actual pretty-printing is application-specific (for example the PrintNested java program at the top), but the output contains certain escape sequences to mark logical structure, optional indentation, and show/hide buttons.
Note this is basically a log of a terminal session from a few years ago, but saved as HTML, along with JavaScript to respond to the window-resize and show/hide actions.
There's no releases at the github repo. Maybe there's a mac build available somewhere? Building fails on my mac, because javascript.
Having used emacs exwm, i3, and awesome for last 3 years straight, you dont need any of this on Linux. This is all there. Just use 'feh' if you want to 'cat' and iamge. Like wise for ffprobe, etc
This for macs and winodows with literally dumb UX for development
This for macs and winodows with literally dumb UX for development
Developers of terminals are moving forward to strong type (like power-shell, nu-shell etc). I think this is the future. Besides, the strong type terminal should be the base of the graphical terminal, but I don't think we need a graphical terminal.
I see plenty colors on my screen already. My shell doesn't need colors. The terminal is a dark place, but it's cosy and it's surrounded by a colorful macOS desktop. The shell is a portal that takes me to the joys of Unix.
Is TermKit dead? Why? - https://news.ycombinator.com/item?id=4787211 - Nov 2012 (1 comment)
Why did TermKit die? - https://news.ycombinator.com/item?id=3154553 - Oct 2011 (1 comment)
TermKit - a graphical terminal replacement - https://news.ycombinator.com/item?id=2559734 - May 2011 (200 comments)
TermKit - Next Generation Terminal/Command Application - https://news.ycombinator.com/item?id=2542068 - May 2011 (2 comments)