Embedded scripting language

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Today, if you want to include configuration or code from other teams into apps, when those apps written in different languages, you have a few options:

• Do nothing
• Declarative, e.g. XML or YAML (restrictive)
• Common Expression Language/CeL (expressions only)
• LUA (established, flow)
• JavaScript (establish, slow)
• WASM (fast, no strings!)

I don't think there are any great options today.

There are various use cases, such as complex policies or plugins systems. I imagine LUA can meet most of these. However, I want something simpler and faster.

Finally, (and unlike CeL), LUA and JS need to be sandboxed, which adds complexity.

We can go into discussions of the Halting Problem, but 🤷

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https://github.com/google/cel-go#why-not-javascript-lua-or-wasm

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What if the language was a subset of another language, e.g. a subset of C? We can then always compile it using existing tools.

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C BNF C- BNF Simple BNF