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<?php
namespace League\HTMLToMarkdown\Converter;
use League\HTMLToMarkdown\Configuration;
use League\HTMLToMarkdown\ConfigurationAwareInterface;
use League\HTMLToMarkdown\ElementInterface;
class CommentConverter implements ConverterInterface, ConfigurationAwareInterface
{
/**
* @var Configuration
*/
protected $config;
/**
* @param Configuration $config
*/
public function setConfig(Configuration $config)
{
$this->config = $config;
}
/**
* @param ElementInterface $element
*
* @return string
*/
public function convert(ElementInterface $element)
{
if ($this->shouldPreserve($element)) {
return '<!--' . $element->getValue() . '-->';
}
return '';
}
/**
* @return string[]
*/
public function getSupportedTags()
{
return array('#comment');
}
/**
* @param ElementInterface $element
*
* @return bool
*/
private function shouldPreserve(ElementInterface $element)
{
$preserve = $this->config->getOption('preserve_comments');
if ($preserve === true) {
return true;
}
if (is_array($preserve)) {
$value = trim($element->getValue());
return in_array($value, $preserve);
}
return false;
}
}
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