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<?php
/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Doc\Search;
use Icinga\Module\Doc\DocSection;
use RecursiveFilterIterator;
use RecursiveIteratorIterator;
use Icinga\Data\Tree\TreeNodeIterator;
/**
* Iterator over doc sections that match a given search criteria
*/
class DocSearchIterator extends RecursiveFilterIterator
{
/**
* Search criteria
*
* @var DocSearch
*/
protected $search;
/**
* Current search matches
*
* @var DocSearchMatch[]|null
*/
protected $matches;
/**
* Create a new iterator over doc sections that match the given search criteria
*
* @param TreeNodeIterator $iterator
* @param DocSearch $search
*/
public function __construct(TreeNodeIterator $iterator, DocSearch $search)
{
$this->search = $search;
parent::__construct($iterator);
}
/**
* Accept sections that match the search
*
* @return bool Whether the current element of the iterator is acceptable
* through this filter
*/
public function accept(): bool
{
/** @var $section DocSection */
$section = $this->current();
$matches = array();
if (($match = $this->search->search($section->getTitle())) !== null) {
$matches[] = $match->setMatchType(DocSearchMatch::MATCH_HEADER);
}
foreach ($section->getContent() as $lineno => $line) {
if (($match = $this->search->search($line)) !== null) {
$matches[] = $match
->setMatchType(DocSearchMatch::MATCH_CONTENT)
->setLineno($lineno);
}
}
if (! empty($matches)) {
$this->matches = $matches;
return true;
}
if ($section->hasChildren()) {
$this->matches = null;
return true;
}
return false;
}
/**
* Get the search criteria
*
* @return DocSearch
*/
public function getSearch()
{
return $this->search;
}
public function getChildren(): self
{
return new static($this->getInnerIterator()->getChildren(), $this->search);
}
/**
* Whether the search did not yield any match
*
* @return bool
*/
public function isEmpty()
{
$iter = new RecursiveIteratorIterator($this, RecursiveIteratorIterator::SELF_FIRST);
foreach ($iter as $section) {
if ($iter->getInnerIterator()->getMatches() !== null) {
return false;
}
}
return true;
}
/**
* Get current matches
*
* @return DocSearchMatch[]|null
*/
public function getMatches()
{
return $this->matches;
}
}
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