Expr download | SourceForge.net

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 >

License

MIT License

Follow Expr

Expr Web Site

Other Useful Business Software

$300 in Free Credit Towards Top Cloud Services

Build VMs, containers, AI, databases, storage—all in one place.

Start your project in minutes. After credits run out, 20+ products include free monthly usage. Only pay when you're ready to scale.

Get Started

Rate This Project

User Reviews

Be the first to post a review of Expr!

Additional Project Details

Operating Systems

Linux, Mac, Windows

Programming Language

Related Categories

Go Frameworks

Registered

2023-01-16

Similar Business Software

Koa

Koa is a new web framework designed by the team behind Express, which aims to be a smaller, more expressive, and more robust foundation for web applications and APIs. By leveraging async functions, Koa allows you to ditch callbacks and greatly increase error handling. Koa does not bundle any...

See Software
Express

Express is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications. With a myriad of HTTP utility methods and middleware at your disposal, creating a robust API is quick and easy. Express provides a thin layer of fundamental...

See Software
Ruby on Rails

Over the past two decades, Rails has taken countless companies to millions of users and billions in market valuations. Over six thousand people have contributed code to Rails, and many more have served the community through evangelism, documentation, and bug reports. Rendering HTML templates,...

See Software
Webix

JavaScript UI library and framework for speeding up web development. JS Framework for cross-platform web Apps development 102 UI widgets and feature-rich CSS / HTML5 JavaScript controls. Save at least 3000+ development hours by using ready-made widgets and UI controls. Develop Web UI 30% faster....

See Software
Laravel

Laravel is a web application framework with expressive, elegant syntax. We’ve already laid the foundation — freeing you to create without sweating the small things. We love clean code just as much as you do. Simple, elegant syntax puts amazing functionality at your fingertips. Every feature has...

See Software
Fat-Free Framework

Speed up your development process. F3 is lightweight, easy-to-use, and fast. Most of all, it doesn't get in your way. It has a gentle learning curve so you save money on training expenses. Whether you're a novice or an expert PHP programmer, F3 will get you up and running in no time. No...

See Software