A mustache php pattern loader for Laravel and Pattern Lab.

PatternLoader.php

<?php

namespace App\Extensions\Mustache;

use Mustache_Loader;

class PatternLoader implements Mustache_Loader
{
    private $baseDir;
    private $patterns = array();

    public function __construct()
    {

        $this->baseDir = ‘/path/to/patternlab/source/patterns/’;

        $patternObjects = new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($this->baseDir), \RecursiveIteratorIterator::SELF_FIRST);
        $patternObjects->setFlags(\FilesystemIterator::SKIP_DOTS);
        $patternFiles = new \RegexIterator($patternObjects, '/^(.+)\.mustache$/i', \RecursiveRegexIterator::GET_MATCH);
        foreach ($patternFiles as $patternFile) {
            $key = substr($patternFile[1], strlen($this->baseDir));
            $segs = array_filter(preg_split('/\//', $key));
            $key = preg_replace('/\d+-/', '', array_shift($segs)).'-'.preg_replace('/\d+-/', '', array_pop($segs));
            $this->patterns[$key] = $patternFile[0];
        }

    }

    public function load($name)
    {
        if (!isset($this->templates[$name])) {
            $this->templates[$name] = $this->loadPattern($name);
        }
        return $this->templates[$name];
    }

    protected function loadPattern($name)
    {
        $pattern = $this->patterns[$name];
        if (!file_exists($pattern)) {
            throw new Mustache_Exception_UnknownTemplateException($name);
        }
        return file_get_contents($pattern);
    }

}