# Eval Library

The `(scheme eval)` library exports procedures for evaluating Scheme data as programs.

For more information see the [R<sup>7</sup>RS Scheme Specification](../../r7rs.pdf).

- [`eval`]              (#eval)
- [`create-environment`](#create-environment)
- [`setup-environment`] (#setup-environment)

#eval

    (eval expr . environment)

Evaluate `expr` in the specified environment and return the resulting value(s).

A non-standard extension is provided to supply a default global environment if the `environment` argument is not specified.

#create-environment

    (create-environment vars values)

A non-standard function to create a new environment on top of the default one.

`vars` is a list of identifiers in the new environment, and `values` is a list of each value assigned to each identifier.

#setup-environment


    (setup-environment)

A non-standard function to initialize a new global environment.