/usr/share/php/FontLib/TrueType/Collection.php is in php-font-lib 0.3.1+dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* @package php-font-lib
* @link https://github.com/PhenX/php-font-lib
* @author Fabien Ménager <fabien.menager@gmail.com>
* @license http://www.gnu.org/copyleft/lesser.html GNU Lesser General Public License
*/
namespace FontLib\TrueType;
use Countable;
use FontLib\Binary_Stream;
use Iterator;
use OutOfBoundsException;
/**
* TrueType collection font file.
*
* @package php-font-lib
*/
class Collection extends Binary_Stream implements Iterator, Countable {
/**
* Current iterator position.
*
* @var integer
*/
private $position = 0;
protected $collectionOffsets = array();
protected $collection = array();
protected $version;
protected $numFonts;
function parse() {
if (isset($this->numFonts)) {
return;
}
$this->read(4); // tag name
$this->version = $this->readFixed();
$this->numFonts = $this->readUInt32();
for ($i = 0; $i < $this->numFonts; $i++) {
$this->collectionOffsets[] = $this->readUInt32();
}
}
/**
* @param int $fontId
*
* @throws OutOfBoundsException
* @return File
*/
function getFont($fontId) {
$this->parse();
if (!isset($this->collectionOffsets[$fontId])) {
throw new OutOfBoundsException();
}
if (isset($this->collection[$fontId])) {
return $this->collection[$fontId];
}
$font = new File();
$font->f = $this->f;
$font->setTableOffset($this->collectionOffsets[$fontId]);
return $this->collection[$fontId] = $font;
}
function current() {
return $this->getFont($this->position);
}
function key() {
return $this->position;
}
function next() {
return ++$this->position;
}
function rewind() {
$this->position = 0;
}
function valid() {
$this->parse();
return isset($this->collectionOffsets[$this->position]);
}
function count() {
$this->parse();
return $this->numFonts;
}
}
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