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<?php
declare(strict_types=1);
namespace Shaarli\Formatter\Parsedown;
use Shaarli\Formatter\BookmarkDefaultFormatter as Formatter;
/**
* Trait used for Parsedown and ParsedownExtra extension.
*
* Extended:
* - Format links properly in search context
*/
trait ShaarliParsedownTrait
{
/**
* @inheritDoc
*/
protected function inlineLink($excerpt)
{
return $this->shaarliFormatLink(parent::inlineLink($excerpt), true);
}
/**
* @inheritDoc
*/
protected function inlineUrl($excerpt)
{
return $this->shaarliFormatLink(parent::inlineUrl($excerpt), false);
}
/**
* Properly format markdown link:
* - remove highlight tags from HREF attribute
* - (optional) add highlight tags to link caption
*
* @param array|null $link Parsedown formatted link array.
* It can be empty.
* @param bool $fullWrap Add highlight tags the whole link caption
*
* @return array|null
*/
protected function shaarliFormatLink(?array $link, bool $fullWrap): ?array
{
// If open and clean search tokens are found in the link, process.
if (
is_array($link)
&& strpos($link['element']['attributes']['href'] ?? '', Formatter::SEARCH_HIGHLIGHT_OPEN) !== false
&& strpos($link['element']['attributes']['href'] ?? '', Formatter::SEARCH_HIGHLIGHT_CLOSE) !== false
) {
$link['element']['attributes']['href'] = $this->shaarliRemoveSearchTokens(
$link['element']['attributes']['href']
);
if ($fullWrap) {
$link['element']['text'] = Formatter::SEARCH_HIGHLIGHT_OPEN .
$link['element']['text'] .
Formatter::SEARCH_HIGHLIGHT_CLOSE
;
}
}
return $link;
}
/**
* Remove open and close tags from provided string.
*
* @param string $entry input
*
* @return string Striped input
*/
protected function shaarliRemoveSearchTokens(string $entry): string
{
$entry = str_replace(Formatter::SEARCH_HIGHLIGHT_OPEN, '', $entry);
$entry = str_replace(Formatter::SEARCH_HIGHLIGHT_CLOSE, '', $entry);
return $entry;
}
}
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