4 ms·

Application scripting. Single file, low footprint, straightforward script/application interface. Can help with debugging.

irq-1 2y ago
Is there a Forth made for scripting/embedding in an application?
- astrobe_ 2y ago
  According to ChatGPT, there's GForth, SwiftForth, Forth-83, eForth and picoForth, but I cannot really tell how true it is. I use my own implementation, which I wish to publish someday but that's extra work for me to "anonymize" it. Probably the closest to it among ChatGPT's suggestion is eForth, but it's unfortunate IMHO they use C++.
  - kragen 2y ago
    ChatGPT is, as usual, full of shit here. Forth-83 is not an implementation but a standard, superseded by the ANSI standard in 01994, though sometimes people confuse it with F83, which is Laxen and Perry's public-domain implementation of the Forth-83 standard. It came out in 01984. It runs on CP/M and MS-DOS, but the MS-DOS version is limited to a single 64-kibibyte segment. It has no facilities to support embedding it in a program written in another language. eForth, if by that you mean Bill Muench's eForth, is written in, mostly, Forth, on top of a small assembly-language core. It also has no facilities to support embedding it in a program written in another language. GForth is pretty usable and can be embedded, as documented in https://gforth.org/manual/Integrating-Gforth.html https://gforth.org/manual/Integrating-Gforth.html (which is down at the moment but will probably be back up soon along with forth-standard.org.) I don't know anything about SwiftForth and picoForth, but so far ChatGPT is 1 for 3, so I wouldn't bet much on those either.
    - astrobe_ 2y ago
      The eForth I commented on indeed derives from Muench and Dr Ting [1]. About GForth, it doesn't look convincing - actually the feature looks like an afterthought (like those libraries that have been teared out of a program, e.g. libCurl). This use-case isn't well covered for Forth it seems, because the focus has always been mostly on the other embedding. That's why I'd recommend again the DIY route. [1] https://github.com/chochain/eforth https://github.com/chochain/eforth
- stevekemp 2y ago
  A toy golang one you can embed, and a tutorial for how it was written here: https://github.com/skx/foth https://github.com/skx/foth You can see it embedded to provide a turtle-like graphics thing in this repository: https://github.com/skx/turtle https://github.com/skx/turtle
- kragen 2y ago
  ATLAST https://www.fourmilab.ch/atlast/atlast.html https://www.fourmilab.ch/atlast/atlast.html is one, and PFE and GForth can also be used in that mode.
eternityforest 2y ago
Lots of languages are very easy to embed, why not something more common and popular? Seems generally worth the effort to pick an easier to use language. Unless you know ahead of time your target audience probably likes it, or you're on a tiny embedded system.

irq-1 2y ago

Is there a Forth made for scripting/embedding in an application?

astrobe_ 2y ago
According to ChatGPT, there's GForth, SwiftForth, Forth-83, eForth and picoForth, but I cannot really tell how true it is. I use my own implementation, which I wish to publish someday but that's extra work for me to "anonymize" it. Probably the closest to it among ChatGPT's suggestion is eForth, but it's unfortunate IMHO they use C++.
- kragen 2y ago
  ChatGPT is, as usual, full of shit here. Forth-83 is not an implementation but a standard, superseded by the ANSI standard in 01994, though sometimes people confuse it with F83, which is Laxen and Perry's public-domain implementation of the Forth-83 standard. It came out in 01984. It runs on CP/M and MS-DOS, but the MS-DOS version is limited to a single 64-kibibyte segment. It has no facilities to support embedding it in a program written in another language. eForth, if by that you mean Bill Muench's eForth, is written in, mostly, Forth, on top of a small assembly-language core. It also has no facilities to support embedding it in a program written in another language. GForth is pretty usable and can be embedded, as documented in https://gforth.org/manual/Integrating-Gforth.html https://gforth.org/manual/Integrating-Gforth.html (which is down at the moment but will probably be back up soon along with forth-standard.org.) I don't know anything about SwiftForth and picoForth, but so far ChatGPT is 1 for 3, so I wouldn't bet much on those either.
  - astrobe_ 2y ago
    The eForth I commented on indeed derives from Muench and Dr Ting [1]. About GForth, it doesn't look convincing - actually the feature looks like an afterthought (like those libraries that have been teared out of a program, e.g. libCurl). This use-case isn't well covered for Forth it seems, because the focus has always been mostly on the other embedding. That's why I'd recommend again the DIY route. [1] https://github.com/chochain/eforth https://github.com/chochain/eforth
stevekemp 2y ago
A toy golang one you can embed, and a tutorial for how it was written here: https://github.com/skx/foth https://github.com/skx/foth You can see it embedded to provide a turtle-like graphics thing in this repository: https://github.com/skx/turtle https://github.com/skx/turtle
kragen 2y ago
ATLAST https://www.fourmilab.ch/atlast/atlast.html https://www.fourmilab.ch/atlast/atlast.html is one, and PFE and GForth can also be used in that mode.

eternityforest 2y ago

Lots of languages are very easy to embed, why not something more common and popular? Seems generally worth the effort to pick an easier to use language. Unless you know ahead of time your target audience probably likes it, or you're on a tiny embedded system.