The ExprZ core library contains the basic traits and algorithms for building expressions. The main library contains several implementations of the expression traits, so if you want to build your own, but don't want to use the already-implemented structures, depend only on the exprz-core library.
The core library is re-exported into the main ExprZ library for convenience.
The core library is Rust no_std compliant.
For more information on the core library see the documentation.