Sample Purify service provider

PurifyServiceProvider.php

<?php

namespace App\Providers;

use HTMLPurifier_HTMLDefinition;
use HTMLPurifier_TagTransform_Simple;
use Illuminate\Support\Facades\Log;
use Stevebauman\Purify\Facades\Purify;
use Illuminate\Support\ServiceProvider;

class PurifyServiceProvider extends ServiceProvider
{
    /**
     * Bootstrap the application services.
     *
     * @return void
     */
    public function boot()
    {
        $purifier = Purify::getPurifier();
        $config   = $purifier->config;
        $config->set('HTML.DefinitionID', 'sic-editor');
        $config->set('HTML.DefinitionRev', 1);
        if ($def = $config->maybeGetRawHTMLDefinition()) {
            $def->info_tag_transform['u'] = new HTMLPurifier_TagTransform_Simple('span', 'text-decoration: underline;');
        }
        $purifier->config = $config;
    }

    /**
     * Register the application services.
     *
     * @return void
     */
    public function register()
    {
        //
    }
}