app/Search/Options/ExactSearchOption.php
<?php
namespace BookStack\Search\Options;
class ExactSearchOption extends SearchOption
{
public function toString(): string
{
$escaped = str_replace('\\', '\\\\', $this->value);
$escaped = str_replace('"', '\"', $escaped);
return ($this->negated ? '-' : '') . '"' . $escaped . '"';
}
}