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SurveyJS
Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Oh this is one of my favourite topics.
This site is like many of the other DRAKON tools written by Stepan Mitkin and is released to the public domain on GitHub [0].
The tool I am most familiar with is the DRAKON editor [1] also created by Mitkin and released to the public domain [2]. I feel in love with DRAKON about 10 years ago and have used it on and off for just writing out flows or some algorithms, I even wrote a optimistic database in Erlang with it some years ago which I found pretty interesting. More recently I have been looking at adding Rust support to the tool, but many of the things I want to do is blocked by various technical debt that have accumulated over the years, and the fact that I have never used TCL before.
[0]: https://github.com/stepan-mitkin/drakonhub
[1]: https://drakon-editor.sourceforge.net/
[2]: https://github.com/stepan-mitkin/drakon_editor
Oh this is one of my favourite topics.
This site is like many of the other DRAKON tools written by Stepan Mitkin and is released to the public domain on GitHub [0].
The tool I am most familiar with is the DRAKON editor [1] also created by Mitkin and released to the public domain [2]. I feel in love with DRAKON about 10 years ago and have used it on and off for just writing out flows or some algorithms, I even wrote a optimistic database in Erlang with it some years ago which I found pretty interesting. More recently I have been looking at adding Rust support to the tool, but many of the things I want to do is blocked by various technical debt that have accumulated over the years, and the fact that I have never used TCL before.
[0]: https://github.com/stepan-mitkin/drakonhub
[1]: https://drakon-editor.sourceforge.net/
[2]: https://github.com/stepan-mitkin/drakon_editor
A better source for the actual language would be this PDF file [0] or the Wikipedia page [1].
It is a kind of strict flowchart language that only allows you to do it in one way, which may be bad for some, but it helps how fast you can grok it when you understand the simple rules.
The same author have also recently made a JS widget that allows you to embed these diagrams on websites [2].
[0]: https://drakon-editor.sourceforge.net/DRAKON.pdf
[1]: https://en.wikipedia.org/wiki/DRAKON
[2]: https://github.com/stepan-mitkin/drakonwidget
There are no real applications written in Drakon. That's because its authors spend most of the time pontificating about how it's superior to all other programming languages.
Drakon editor is probably the most complicated piece of software written in it: https://github.com/stepan-mitkin/drakon.tech