S2 is a library for spherical geometry written primarily by Eric Veach:

• Designed to have good performance on large geographic datasets.
• Organized as a toolkit with various layers, that gives clients as much control as possible.
• Works exclusively with spherical projections.
• API available in C++, Go, Java and Python.
• Supports Linux and MacOSX.

Musings on software.

When you write a module in C’Dent, you can use it in a dozen different programming languages. For instance, you could write a module in Python and use it in JavaScript, or you could write a module in JavaScript and use it in Perl 6, Ruby or Java.

What a trip.

This is of limited use since it’s for logic, not for API stuff, and most apps write their own logic instead of relying on modules for logic, but I’ll have to try to remember that this exists for things that do rely on logic.

One example that does come to mind is an infix expression parser library that takes strings as input and returns numbers. Something like that could work with C’Dent.

Under “next steps” it says:

Add variables and assignments

Conclusion: completely useless for now without further hacking & patching.