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<?php
namespace ArjanSchouten\HtmlMinifier\Minifiers\Html;
use ArjanSchouten\HtmlMinifier\Minifiers\MinifierInterface;
use ArjanSchouten\HtmlMinifier\MinifyContext;
use ArjanSchouten\HtmlMinifier\Options;
use ArjanSchouten\HtmlMinifier\Repositories\HtmlBooleanAttributeRepository;
class BooleanAttributeMinifier implements MinifierInterface
{
/**
* Execute the minification rule.
*
* @param \ArjanSchouten\HtmlMinifier\MinifyContext $context
* @return \ArjanSchouten\HtmlMinifier\MinifyContext
*/
public function process(MinifyContext $context)
$booleanAttributes = implode('|', (new HtmlBooleanAttributeRepository())->getAttributes());
return $context->setContents(preg_replace_callback(
'/
\s # first match a whitespace which is an indication if its an attribute
('.$booleanAttributes.') # match and capture a boolean attribute
\s*
=
([\'"])? # optional to use a quote
(\1|true|false|([\s>"\'])) # match the boolean attribute name again or true|false
\2? # match the quote again
/xi', function ($match) {
if (isset($match[4])) {
return ' '.$match[1];
}
if ($match[3] == 'false') {
return '';
}, $context->getContents()));
* Indicates if minification rules depends on command options.
* @return string
public function provides()
return Options::BOOLEAN_ATTRIBUTES;
ArjanSchouten /
HtmlMinifier
