Each project in this directory is a different ZptSharp expression evaluator. Expression evaluators extend the TALES syntax, enabling additional types of expressions. Each expression evaluator is a class which implements ZptSharp.Expressions.IEvaluatesExpression.

Expression evaluators are resolved from dependency injection and are registered for use with ZptSharp.Expressions.IRegistersExpressionEvaluator.

Note that not all expression evaluators are in this directory. There are many more found in the ZptSharp.Impl project, in the Expressions directory/namespace. Expressions which are in this directory are mainly those which have significant external dependencies and are unsuitable for inclusion in the core.