jens
jens is a Rust templating library, not a templating language
The aim of Jens is to provide extremely lightweight templating, without inventing a new language. This allows you to use the full power of Rust's language features (such as pattern matching and enums) in your template logic.
The main use case for this library is probably code generation, but it could be used anywhere you need multi-line strings in your Rust code.