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<?php
/**
* This file is part of FPDI
*
* @package setasign\Fpdi
* @copyright Copyright (c) 2020 Setasign GmbH & Co. KG (https://www.setasign.com)
* @license http://opensource.org/licenses/mit-license The MIT License
*/
namespace setasign\Fpdi\PdfParser\Type;
use setasign\Fpdi\PdfParser\PdfParser;
use setasign\Fpdi\PdfParser\Tokenizer;
/**
* Class representing a PDF array object
*
* @property array $value The value of the PDF type.
*/
class PdfArray extends PdfType
{
/**
* Parses an array of the passed tokenizer and parser.
*
* @param Tokenizer $tokenizer
* @param PdfParser $parser
* @return bool|self
* @throws PdfTypeException
*/
public static function parse(Tokenizer $tokenizer, PdfParser $parser)
{
$result = [];
// Recurse into this function until we reach the end of the array.
while (($token = $tokenizer->getNextToken()) !== ']') {
if ($token === false || ($value = $parser->readValue($token)) === false) {
return false;
}
$result[] = $value;
}
$v = new self();
$v->value = $result;
return $v;
}
/**
* Helper method to create an instance.
*
* @param PdfType[] $values
* @return self
*/
public static function create(array $values = [])
{
$v = new self();
$v->value = $values;
return $v;
}
/**
* Ensures that the passed array is a PdfArray instance with a (optional) specific size.
*
* @param mixed $array
* @param null|int $size
* @return self
* @throws PdfTypeException
*/
public static function ensure($array, $size = null)
{
$result = PdfType::ensureType(self::class, $array, 'Array value expected.');
if ($size !== null && \count($array->value) !== $size) {
throw new PdfTypeException(
\sprintf('Array with %s entries expected.', $size),
PdfTypeException::INVALID_DATA_SIZE
);
}
return $result;
}
}
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