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<?php
/* Icinga Web 2 | (c) 2015 Icinga Development Team | GPLv2+ */
namespace Icinga\Module\Doc\Search;
/**
* Search documentation for a given search string
*/
class DocSearch
{
/**
* Search string
*
* @var string
*/
protected $input;
/**
* Search criteria
*
* @var array
*/
protected $search;
/**
* Create a new doc search from the given search string
*
* @param string $search
*/
public function __construct($search)
{
$this->input = $search = (string) $search;
$criteria = array();
if (preg_match_all('/"(?P<search>[^"]*)"/', $search, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE)) {
$unquoted = array();
$offset = 0;
foreach ($matches as $match) {
$fullMatch = $match[0];
$searchMatch = $match['search'];
$unquoted[] = substr($search, $offset, $fullMatch[1] - $offset);
$offset = $fullMatch[1] + strlen($fullMatch[0]);
if (strlen($searchMatch[0]) > 0) {
$criteria[] = $searchMatch[0];
}
}
$unquoted[] = substr($search, $offset);
$search = implode(' ', $unquoted);
}
$this->search = array_map(
'strtolower',
array_unique(array_merge($criteria, array_filter(explode(' ', trim($search)))))
);
}
/**
* Get the search criteria
*
* @return array
*/
public function getCriteria()
{
return $this->search;
}
/**
* Get the search string
*
* @return string
*/
public function getInput()
{
return $this->input;
}
/**
* Search in the given line
*
* @param string $line
*
* @return DocSearchMatch|null
*/
public function search($line)
{
$match = new DocSearchMatch();
$match->setLine($line);
foreach ($this->search as $criteria) {
$offset = 0;
while (($position = stripos($line, $criteria, $offset)) !== false) {
$match->appendMatch(substr($line, $position, strlen($criteria)), $position);
$offset = $position + 1;
}
}
return $match->isEmpty() ? null : $match;
}
}
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