https://github.com/zircote/expressive

https://github.com/zircote/expressive

Last synced: about 1 year ago
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• Host: GitHub
• URL: https://github.com/zircote/expressive
• Owner: zircote
• Created: 2012-07-10T23:38:16.000Z (almost 14 years ago)
• Default Branch: master
• Last Pushed: 2013-12-17T01:37:51.000Z (over 12 years ago)
• Last Synced: 2025-03-23T19:45:19.583Z (over 1 year ago)
• Language: PHP
• Size: 180 KB
• Stars: 5
• Watchers: 1
• Forks: 1
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md

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README

          
# Expressive

[![Build Status](https://secure.travis-ci.org/zircote/Expressive.png)](http://travis-ci.org/zircote/Expressive)

A PHP expression parser. This tool was largely inspired by snips of code I came across

on the web while looking for some form of an expression DSL. The approach inspired me

enough to feel it deserved sharing. Unfortunately these snippets had no name associated

with them and I am therefor unable to attribute the inspirative work to its inceptor.

## Use:

### Inline PHP

```php

 bin/expr

math > (2+2)*sqrt(4)

8

math > exit

>

```

Supported Operations:

 - `+` addition `2+2`

 - `-` substraction `4-2`

 - `/` division `4/2`

 - `*` multiplication `2*2`

 - `^` exponential `2^2`

 - `sin` sine `sin(60)`

 - `cos` cosine `cos(90)`

 - `tan` tangent `tan(45)`

 - `sqrt` square root `sqrt(4)`

 - `exp` exponent `exp(12)`

[![Bitdeli Badge](https://d2weczhvl823v0.cloudfront.net/zircote/expressive/trend.png)](https://bitdeli.com/free "Bitdeli Badge")