Top 17 expression-parser Open-Source Projects

• cel-go

  7 2,040 8.8 Go

  Fast, portable, non-Turing complete expression evaluation with gradual typing (Go)

  

Project mention: CEL on N resources? | /r/kubernetes | 2023-12-04

There's a simple repl implementation in the cel-go repo that you can use https://github.com/google/cel-go/tree/master/repl/main. But not sure about what you actually want to do though. Has a bit of on XY problem feel to be honest.

• EvalEx

  1 950 7.6 Java

  EvalEx is a handy expression evaluator for Java, that allows to evaluate simple mathematical and boolean expressions.

  

• InfluxDB

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• ExprTK

  10 577 0.0 C++

  C++ Mathematical Expression Parsing And Evaluation Library https://www.partow.net/programming/exprtk/index.html

• ExpressionEvaluator

  4 562 4.9 C#

  A Simple Math and Pseudo C# Expression Evaluator in One C# File. Can also execute small C# like scripts

• ReadableExpressions

  2 389 3.7 C#

  A library and Debugger Visualizer which translates Expression Trees into readable C# source code. .NET 3.5+ and .NET Standard 1.0+.

  

• CSLY

  2 336 9.2 C#

  a C# embeddable lexer and parser generator (.Net core)

• cparse

  1 327 0.0 C++

  A C++ configurable Expression Parser. Useful as a Calculator or for helping you write your own Programming Language

  

• SaaSHub

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• NCalc2

  2 151 7.3 C#

  expression evaluator for .NET with built-in compiler

• math-parser-benchmark-project

  1 124 0.0 C++

  C++ Mathematical Expression Parser Benchmark

• subscript

  1 89 9.2 JavaScript

  Fast and tiny expression evaluator with minimal syntax.

Project mention: Wax compiler – a tiny language designed to transpile to other languages | news.ycombinator.com | 2024-04-19

> The goal of wax is to be a "common subset" of most major imperative programming languages. By lacking the unique fancy features in each of these languages and being as boring as possible, wax transpiles to all of them seamlessly

I love the concept. I was recently studying a very small language called "subscript", with a similar idea they called "common syntax".

> Subscript supports common syntax (shared by JavaScript,C, C++, Java, C#, PHP, Swift, Objective-C, Kotlin, Perl etc.)

https://github.com/dy/subscript

---

Lingdong Huang, the author of Wax language, is a genuine artist of software. His projects are a feast.

https://lingdong.works/

https://github.com/LingDong-

A programming language in Classical Chinese. Procedurally generated flowers, fish drawings, imaginary creatures, landscape paintings. In my mind, he's up there in the Olympian heights with Fabrice Bellard, Justine Tunney, etc., in terms of technical mastery and innovative thinking.

• string-math

  1 39 5.8 C#

  Evaluates a math expression from a string. Supports variables and custom operators.

• go-exprtk

  0 37 0.0 Go

  Go Mathematical Expression Toolkit. Run-time mathematical expression parser and evaluation engine.

• java.math.expression.parser

  2 35 6.1 Java

  java math expression parser is faster than JEP

• picomath

  1 9 0.0 C++

  Fast math expression evaluation (C++ header only library)

• arithmetic_expression_evaluator

  1 7 0.0 Go

  arithmetic expression evaluator: homework for fourth graders in elementary school

• YoowzxCalc

  4 7 0.0 C#

  .NET library for processing of mathematical expressions developed with emphasis on performance and flexibility of use.

• pratt-parser-calculator

  1 2 0.0 C++

  Pratt operator precedence parser and expression calculator

• SaaSHub

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expression-parser related posts

• Is there a c# library available that will evaluate arithmetic string such "5+3+max(3)" in runtime say from a file and provide output

  6 projects | /r/csharp | 8 Apr 2023

• Evaluate piecewise functions in VBA

  1 project | /r/vba | 17 Oct 2022

• Solving systems of linear equations with VBA

  1 project | /r/vba | 15 Oct 2022

• Expression evaluator for VBA

  1 project | /r/github | 10 Oct 2022

• Homework for a 6-year-old child：arithmetic calculator

  1 project | /r/C_Programming | 14 Jun 2021
• A note from our sponsor - SaaSHub
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