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<?php
/**
* @file
* This file is part of the PdfParser library.
*
* @author Sébastien MALOT <sebastien@malot.fr>
*
* @date 2017-01-03
*
* @license LGPLv3
*
* @url <https://github.com/smalot/pdfparser>
*
* PdfParser is a pdf library written in PHP, extraction oriented.
* Copyright (C) 2017 - Sébastien MALOT <sebastien@malot.fr>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program.
* If not, see <http://www.pdfparser.org/sites/default/LICENSE.txt>.
*/
namespace Smalot\PdfParser\Element;
use Smalot\PdfParser\Document;
use Smalot\PdfParser\Element;
use Smalot\PdfParser\Header;
use Smalot\PdfParser\PDFObject;
/**
* Class ElementArray
*/
class ElementArray extends Element
{
public function __construct($value, ?Document $document = null)
{
parent::__construct($value, $document);
}
public function getContent()
{
foreach ($this->value as $name => $element) {
$this->resolveXRef($name);
}
return parent::getContent();
}
public function getRawContent(): array
{
return $this->value;
}
public function getDetails(bool $deep = true): array
{
$values = [];
$elements = $this->getContent();
foreach ($elements as $key => $element) {
if ($element instanceof Header && $deep) {
$values[$key] = $element->getDetails($deep);
} elseif ($element instanceof PDFObject && $deep) {
$values[$key] = $element->getDetails(false);
} elseif ($element instanceof self) {
if ($deep) {
$values[$key] = $element->getDetails();
}
} elseif ($element instanceof Element && !($element instanceof self)) {
$values[$key] = $element->getContent();
}
}
return $values;
}
public function __toString(): string
{
return implode(',', $this->value);
}
/**
* @return Element|PDFObject
*/
protected function resolveXRef(string $name)
{
if (($obj = $this->value[$name]) instanceof ElementXRef) {
/** @var ElementXRef $obj */
$obj = $this->document->getObjectById($obj->getId());
$this->value[$name] = $obj;
}
return $this->value[$name];
}
/**
* @todo: These methods return mixed and mismatched types throughout the hierarchy
*
* @return bool|ElementArray
*/
public static function parse(string $content, ?Document $document = null, int &$offset = 0)
{
if (preg_match('/^\s*\[(?P<array>.*)/is', $content, $match)) {
preg_match_all('/(.*?)(\[|\])/s', trim($content), $matches);
$level = 0;
$sub = '';
foreach ($matches[0] as $part) {
$sub .= $part;
$level += (false !== strpos($part, '[') ? 1 : -1);
if ($level <= 0) {
break;
}
}
// Removes 1 level [ and ].
$sub = substr(trim($sub), 1, -1);
$sub_offset = 0;
$values = Element::parse($sub, $document, $sub_offset, true);
$offset += strpos($content, '[') + 1;
// Find next ']' position
$offset += \strlen($sub) + 1;
return new self($values, $document);
}
return false;
}
}
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