# binexpr

**Repository Path**: zhi/binexpr

## Basic Information

- **Project Name**: binexpr
- **Description**: 一个 Go 语言编写的简单表达式解释和执行引擎。
An expression parser and executor engine written in Go lang.
- **Primary Language**: Unknown
- **License**: MIT
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2023-03-30
- **Last Updated**: 2025-03-22

## Categories & Tags

**Categories**: Uncategorized

**Tags**: Go语言

## README

binexpr (bin/expr)
==================

Binexpr is a simple implementation of a C-like expression interpreter. It includes a tokenizer, parser, executor and a commnad line program named expr, where the name is inspired.

Features
--------

Currently, it supports:

- [x] basic arithmetics, like `+`, `-`, `*`, `/` and `%` (mod)
- [x] unary operator, like `-` (negative)
- [x] custom function calls, like `func()`
- [x] object chain expression for map and struct via reflection, like `obj.prop`

Installation
------------

```sh
go get gitee.com/zhi/binexpr
```

Getting Started
---------------

```go
import "gitee.com/zhi/binexpr"

func main() {
    interpreter := binexpr.NewInterpreter()
    val, err := interpreter.Evaluate(string(line), nil)
    if err != nil {
        return err
    }
    fmt.Printf("%v\n", val)
}
```

License
-------

MIT.