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waughj/math-parser
==================

Simple Lisp-like math parser.

v0.1.0(6y ago)019GPL-3.0-or-laterPHPPHP >=7.2

Since Dec 2Pushed 6y agoCompare

[ Source](https://github.com/waughjai/math-parser)[ Packagist](https://packagist.org/packages/waughj/math-parser)[ RSS](/packages/waughj-math-parser/feed)WikiDiscussions master Synced 4d ago

READMEChangelog (1)Dependencies (1)Versions (2)Used By (0)

Math Parser
===========

[](#math-parser)

Simple Lisp-like math parser.

Example
-------

[](#example)

```
use WaughJ\MathParser\MathParser;

$math = new MathParser();
echo( $math->parse( '(+ 2 2)' ) );

```

Prints "4".

To use a different parser:

```
use WaughJ\MathParser\MathParser;

$math = new MathParser( new LisphpParser( [ ',' ] ) );
echo( $math->parse( '(*,2,5)' ) );

```

Prints "10".

To create a new custom function:

```
use WaughJ\MathParser\MathParser;
use WaughJ\MathParser\MathParserExceptionInvalidFunctionCall;

$math = new MathParser();
$math->addFunction
(
    'double',
    function( array $args )
    {
        $arg_count = count( $args );
        if ( $arg_count < 1 )
        {
            throw new MathParserExceptionInvalidFunctionCall
            (
                "Call to function “double” given no arguments. Needs at least 1."
            );
        }
        return array_shift( $args ) * 2;
    }
);
echo( $math->parse( '(double 222)' ) );

```

Prints "444".

Changelog
---------

[](#changelog)

### 0.1.0

[](#010)

- Initial stable version.

###  Health Score

20

—

LowBetter than 14% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity6

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity42

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Unknown

Total

1

Last Release

2356d ago

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/11161078?v=4)[waughj](/maintainers/waughj)[@waughj](https://github.com/waughj)

---

Top Contributors

[![waughjai](https://avatars.githubusercontent.com/u/37596383?v=4)](https://github.com/waughjai "waughjai (9 commits)")

---

Tags

parsermath

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/waughj-math-parser/health.svg)

```
[![Health](https://phpackages.com/badges/waughj-math-parser/health.svg)](https://phpackages.com/packages/waughj-math-parser)
```

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