Expr package provides an engine that can compile and evaluate expressions. An expression is a one-liner that returns a value (mostly, but not limited to, booleans). It is designed for simplicity, speed and safety. The purpose of the package is to allow users to use expressions inside configuration for more complex logic. It is a perfect candidate for the foundation of a business rule engine. The idea is to let configure things in a dynamic way without recompile of a program.

Features

  • Seamless integration with Go (no need to redefine types)
  • User-friendly error messages
  • Reasonable set of basic operators
  • Builtins all, none, any, one, filter, map
  • Static typing
  • Fast (benchmarks): uses bytecode virtual machine and optimizing compiler

Project Samples

Project Activity

See All Activity >

Categories

Frameworks

License

MIT License

Follow Expr

Expr Web Site

Other Useful Business Software
Stop Cyber Threats with VM-Series Next-Gen Firewall on Azure Icon
Stop Cyber Threats with VM-Series Next-Gen Firewall on Azure

Native application identity and user-based security for your Azure cloud

Gain integrated visibility across all traffic in a single pass. Deploy Palo Alto Networks VM-Series to determine application identity and content while automating security policy updates via rich APIs.
Get a free trial
Rate This Project
Login To Rate This Project

User Reviews

Be the first to post a review of Expr!

Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

Go

Related Categories

Go Frameworks

Registered

2023-01-16