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