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ows/commonmark-sup-sub-extensions
=================================

A sup/sub extension for CommonMark PHP implementation

2.0.0(6y ago)107.7k↓100%6[2 issues](https://github.com/OWS/commonmark-sup-sub-extensions/issues)[1 PRs](https://github.com/OWS/commonmark-sup-sub-extensions/pulls)GPL-2.0-or-laterPHPCI failing

Since Apr 13Pushed 3mo ago10 watchersCompare

[ Source](https://github.com/OWS/commonmark-sup-sub-extensions)[ Packagist](https://packagist.org/packages/ows/commonmark-sup-sub-extensions)[ Docs](https://github.com/ows/commonmark-sup-sub-extensions)[ RSS](/packages/ows-commonmark-sup-sub-extensions/feed)WikiDiscussions 2.x Synced 2mo ago

READMEChangelog (8)Dependencies (3)Versions (13)Used By (0)

ows/commonmark-sup-sub-extensions
=================================

[](#owscommonmark-sup-sub-extensions)

[![Build Status](https://camo.githubusercontent.com/a8a1aa4e155ed3bebd777a51e8011c9e314cf196e8cd5d4642eb200f3c2d005f/68747470733a2f2f6170692e7472617669732d63692e6f72672f4f57532f636f6d6d6f6e6d61726b2d7375702d7375622d657874656e73696f6e732e7376673f6272616e63683d322e78)](https://travis-ci.org/OWS/commonmark-sup-sub-extensions)

This library adds support of superscript and subscript (`` and `` HTML tags) to [league/commonmark](https://github.com/thephpleague/commonmark).

Versions compatibility
----------------------

[](#versions-compatibility)

- 2.x is compatible with league/commonmark 1.x (*recommended version*)
- 1.x is compatible with league/commonmark 0.17.x and 0.18.x and will no longer be supported

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

[](#installation)

This project can be installed via \[Composer\]:

```
$ composer require ows/commonmark-sup-sub-extensions
```

Usage
-----

[](#usage)

```
use League\CommonMark\Environment;
use Ows\CommonMark\SupExtension;
use Ows\CommonMark\SubExtension;

$environment = Environment::createCommonMarkEnvironment();
$environment->addExtension(new SupExtension());
$environment->addExtension(new SubExtension());
```

See [CommonMark customization](https://github.com/thephpleague/commonmark#advanced-usage--customization).

Syntax
------

[](#syntax)

Code:

```
10^2^
10~2~
```

Result:

```
102
102
```

###  Health Score

45

—

FairBetter than 92% of packages

Maintenance50

Moderate activity, may be stable

Popularity28

Limited adoption so far

Community19

Small or concentrated contributor base

Maturity70

Established project with proven stability

 Bus Factor1

Top contributor holds 70.4% 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

Every ~258 days

Recently: every ~577 days

Total

12

Last Release

102d ago

Major Versions

1.2.0 → 2.0.0-RC12019-09-27

1.x-dev → 2.0.0-RC22019-10-03

2.x-dev → 3.0.0-RC12025-10-16

### Community

Maintainers

![](https://www.gravatar.com/avatar/de640b896bc934391c7f5018f5fb59e226629eed72809fcb135dec858f59b871?d=identicon)[Sylry](/maintainers/Sylry)

![](https://www.gravatar.com/avatar/0641d8f15bea905bba7726ef78508ff879277e08326f2c14fbd03726cbe89da9?d=identicon)[jcisio](/maintainers/jcisio)

---

Top Contributors

[![Sylry](https://avatars.githubusercontent.com/u/9798412?v=4)](https://github.com/Sylry "Sylry (19 commits)")[![pazairfog](https://avatars.githubusercontent.com/u/1690681?v=4)](https://github.com/pazairfog "pazairfog (6 commits)")[![colinodell](https://avatars.githubusercontent.com/u/202034?v=4)](https://github.com/colinodell "colinodell (1 commits)")[![noxify](https://avatars.githubusercontent.com/u/521777?v=4)](https://github.com/noxify "noxify (1 commits)")

---

Tags

parsermarkdowncommonmark

###  Code Quality

TestsPHPUnit

### Embed Badge

![Health badge](/badges/ows-commonmark-sup-sub-extensions/health.svg)

```
[![Health](https://phpackages.com/badges/ows-commonmark-sup-sub-extensions/health.svg)](https://phpackages.com/packages/ows-commonmark-sup-sub-extensions)
```

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