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RiveScript 3

! version = 3

This is an in-development new version of the RiveScript chatbot scripting language.

RiveScript is a simple text-based language for creating chatbots that respond to pre-programmed patterns with clever responses. Version 2 of the language was implemented in five different programming languages by its author and supported and maintained with the help of contributors on GitHub: Perl, Java, Python, JavaScript and Go. Across these five languages RiveScript has amassed hundreds of users and spawned a few startups in bot hosting services.

RiveScript 3 will be backwards compatible in that the RS3 interpreter will be able to read and use your existing RiveScript 2 code just fine while supporting new tags and syntax in new source files.

Quick Facts

  • I'm only going to program RiveScript 3 in one programming language, not five.
  • That language is going to be Go.
  • I will make it backwards compatible to RiveScript 2 so that you can mix and match files written in either dialect in the same chatbot.
    • Designated by that header, ! version = 3
    • Will use the rivescript-go library to understand RiveScript 2 syntax, and translating it into the new engine will be a first-class feature to be kept working.
  • I'll explore ways to create tight bindings to the existing programming languages that have a lot of existing RiveScript users:
    • JavaScript: via GopherJS and WebAssembly, which I've experimented with before in Go at rsgb.
    • Python: via CPython API for native modules.
    • Other: Go makes for really good web servers, so RiveScript 3 can include a built-in RESTful API over good old HTTP.
  • All development of RS3, including its language specification, will be kept at https://github.com/aichaos/rivescript3 at least until the stable release of the project.

License

MIT. Noah Petherbridge © 2019.

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