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<?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 <[email protected]> |
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* @date 2017-01-03 |
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* |
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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 <[email protected]> |
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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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namespace Smalot\PdfParser; |
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use Smalot\PdfParser\XObject\Form; |
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use Smalot\PdfParser\XObject\Image; |
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/** |
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* Class PDFObject |
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*/ |
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class PDFObject |
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{ |
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const TYPE = 't'; |
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const OPERATOR = 'o'; |
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const COMMAND = 'c'; |
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/** |
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* The recursion stack. |
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* |
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* @var array |
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*/ |
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public static $recursionStack = []; |
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/** |
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* @var Document |
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*/ |
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protected $document = null; |
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/** |
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* @var Header |
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*/ |
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protected $header = null; |
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/** |
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* @var string |
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*/ |
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protected $content = null; |
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/** |
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* @param Header $header |
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* @param string $content |
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*/ |
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public function __construct(Document $document, Header $header = null, $content = null) |
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{ |
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$this->document = $document; |
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$this->header = null !== $header ? $header : new Header(); |
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$this->content = $content; |
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} |
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public function init() |
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{ |
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} |
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/** |
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* @return Header|null |
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*/ |
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public function getHeader() |
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{ |
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return $this->header; |
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} |
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/** |
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* @param string $name |
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* |
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* @return Element|PDFObject |
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*/ |
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public function get($name) |
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{ |
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return $this->header->get($name); |
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} |
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/** |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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public function has($name) |
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{ |
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return $this->header->has($name); |
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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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return $this->header->getDetails($deep); |
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} |
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/** |
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* @return string|null |
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*/ |
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public function getContent() |
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{ |
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return $this->content; |
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} |
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/** |
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* @param string $content |
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*/ |
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public function cleanContent($content, $char = 'X') |
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{ |
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$char = $char[0]; |
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$content = str_replace(['\\\\', '\\)', '\\('], $char.$char, $content); |
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// Remove image bloc with binary content |
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preg_match_all('/\s(BI\s.*?(\sID\s).*?(\sEI))\s/s', $content, $matches, PREG_OFFSET_CAPTURE); |
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foreach ($matches[0] as $part) { |
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$content = substr_replace($content, str_repeat($char, \strlen($part[0])), $part[1], \strlen($part[0])); |
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} |
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// Clean content in square brackets [.....] |
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preg_match_all('/\[((\(.*?\)|[0-9\.\-\s]*)*)\]/s', $content, $matches, PREG_OFFSET_CAPTURE); |
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foreach ($matches[1] as $part) { |
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$content = substr_replace($content, str_repeat($char, \strlen($part[0])), $part[1], \strlen($part[0])); |
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} |
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// Clean content in round brackets (.....) |
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preg_match_all('/\((.*?)\)/s', $content, $matches, PREG_OFFSET_CAPTURE); |
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foreach ($matches[1] as $part) { |
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$content = substr_replace($content, str_repeat($char, \strlen($part[0])), $part[1], \strlen($part[0])); |
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} |
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// Clean structure |
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if ($parts = preg_split('/(<|>)/s', $content, -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE)) { |
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$content = ''; |
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$level = 0; |
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foreach ($parts as $part) { |
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if ('<' == $part) { |
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++$level; |
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} |
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$content .= (0 == $level ? $part : str_repeat($char, \strlen($part))); |
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if ('>' == $part) { |
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--$level; |
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} |
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} |
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} |
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// Clean BDC and EMC markup |
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preg_match_all( |
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'/(\/[A-Za-z0-9\_]*\s*'.preg_quote($char).'*BDC)/s', |
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$content, |
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$matches, |
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PREG_OFFSET_CAPTURE |
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); |
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foreach ($matches[1] as $part) { |
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$content = substr_replace($content, str_repeat($char, \strlen($part[0])), $part[1], \strlen($part[0])); |
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} |
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preg_match_all('/\s(EMC)\s/s', $content, $matches, PREG_OFFSET_CAPTURE); |
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foreach ($matches[1] as $part) { |
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$content = substr_replace($content, str_repeat($char, \strlen($part[0])), $part[1], \strlen($part[0])); |
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} |
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return $content; |
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} |
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/** |
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* @param string $content |
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* |
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* @return array |
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*/ |
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public function getSectionsText($content) |
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{ |
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$sections = []; |
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$content = ' '.$content.' '; |
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$textCleaned = $this->cleanContent($content, '_'); |
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// Extract text blocks. |
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if (preg_match_all('/\s+BT[\s|\(|\[]+(.*?)\s*ET/s', $textCleaned, $matches, PREG_OFFSET_CAPTURE)) { |
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foreach ($matches[1] as $part) { |
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$text = $part[0]; |
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if ('' === $text) { |
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continue; |
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} |
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$offset = $part[1]; |
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$section = substr($content, $offset, \strlen($text)); |
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// Removes BDC and EMC markup. |
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$section = preg_replace('/(\/[A-Za-z0-9]+\s*<<.*?)(>>\s*BDC)(.*?)(EMC\s+)/s', '${3}', $section.' '); |
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$sections[] = $section; |
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} |
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} |
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// Extract 'do' commands. |
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if (preg_match_all('/(\/[A-Za-z0-9\.\-_]+\s+Do)\s/s', $textCleaned, $matches, PREG_OFFSET_CAPTURE)) { |
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foreach ($matches[1] as $part) { |
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$text = $part[0]; |
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$offset = $part[1]; |
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$section = substr($content, $offset, \strlen($text)); |
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3 |
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$sections[] = $section; |
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} |
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} |
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return $sections; |
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} |
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private function getDefaultFont(Page $page = null) |
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{ |
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$fonts = []; |
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if (null !== $page) { |
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$fonts = $page->getFonts(); |
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} |
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$fonts = array_merge($fonts, array_values($this->document->getFonts())); |
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if (\count($fonts) > 0) { |
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return reset($fonts); |
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} |
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return new Font($this->document); |
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} |
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/** |
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* @param Page $page |
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* |
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* @return string |
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* |
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* @throws \Exception |
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*/ |
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public function getText(Page $page = null) |
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{ |
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$text = ''; |
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$sections = $this->getSectionsText($this->content); |
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8 |
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$current_font = $this->getDefaultFont($page); |
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8 |
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$current_position_td = ['x' => false, 'y' => false]; |
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$current_position_tm = ['x' => false, 'y' => false]; |
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array_push(self::$recursionStack, $this->getUniqueId()); |
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8 |
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foreach ($sections as $section) { |
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8 |
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$commands = $this->getCommandsText($section); |
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foreach ($commands as $command) { |
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8 |
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switch ($command[self::OPERATOR]) { |
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// set character spacing |
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8 |
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case 'Tc': |
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1 |
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break; |
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// move text current point |
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8 |
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case 'Td': |
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6 |
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$args = preg_split('/\s/s', $command[self::COMMAND]); |
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6 |
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$y = array_pop($args); |
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6 |
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$x = array_pop($args); |
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6 |
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if (((float) $x <= 0) || |
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6 |
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(false !== $current_position_td['y'] && (float) $y < (float) ($current_position_td['y'])) |
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) { |
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// vertical offset |
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5 |
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$text .= "\n"; |
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6 |
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} elseif (false !== $current_position_td['x'] && (float) $x > (float) ( |
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6 |
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$current_position_td['x'] |
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) |
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) { |
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// horizontal offset |
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4 |
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$text .= ' '; |
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} |
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6 |
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$current_position_td = ['x' => $x, 'y' => $y]; |
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6 |
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break; |
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// move text current point and set leading |
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8 |
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case 'TD': |
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2 |
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$args = preg_split('/\s/s', $command[self::COMMAND]); |
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2 |
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$y = array_pop($args); |
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2 |
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$x = array_pop($args); |
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2 |
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if ((float) $y < 0) { |
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2 |
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$text .= "\n"; |
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} elseif ((float) $x <= 0) { |
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$text .= ' '; |
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} |
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2 |
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break; |
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8 |
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case 'Tf': |
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8 |
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list($id) = preg_split('/\s/s', $command[self::COMMAND]); |
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8 |
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$id = trim($id, '/'); |
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8 |
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if (null !== $page) { |
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8 |
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$new_font = $page->getFont($id); |
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314
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// If an invalid font ID is given, do not update the font. |
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315
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// This should theoretically never happen, as the PDF spec states for the Tf operator: |
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316
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// "The specified font value shall match a resource name in the Font entry of the default resource dictionary" |
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317
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// (https://www.adobe.com/content/dam/acom/en/devnet/pdf/pdfs/PDF32000_2008.pdf, page 435) |
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318
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// But we want to make sure that malformed PDFs do not simply crash. |
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319
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8 |
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if (null !== $new_font) { |
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7 |
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$current_font = $new_font; |
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321
|
|
|
} |
|
322
|
|
|
} |
|
323
|
8 |
|
break; |
|
324
|
|
|
|
|
325
|
8 |
|
case "'": |
|
326
|
8 |
|
case 'Tj': |
|
327
|
5 |
|
$command[self::COMMAND] = [$command]; |
|
328
|
|
|
// no break |
|
329
|
8 |
|
case 'TJ': |
|
330
|
8 |
|
$sub_text = $current_font->decodeText($command[self::COMMAND]); |
|
331
|
8 |
|
$text .= $sub_text; |
|
332
|
8 |
|
break; |
|
333
|
|
|
|
|
334
|
|
|
// set leading |
|
335
|
7 |
|
case 'TL': |
|
336
|
1 |
|
$text .= ' '; |
|
337
|
1 |
|
break; |
|
338
|
|
|
|
|
339
|
7 |
|
case 'Tm': |
|
340
|
7 |
|
$args = preg_split('/\s/s', $command[self::COMMAND]); |
|
341
|
7 |
|
$y = array_pop($args); |
|
342
|
7 |
|
$x = array_pop($args); |
|
343
|
7 |
|
if (false !== $current_position_tm['x']) { |
|
344
|
7 |
|
$delta = abs((float) $x - (float) ($current_position_tm['x'])); |
|
345
|
7 |
|
if ($delta > 10) { |
|
346
|
5 |
|
$text .= "\t"; |
|
347
|
|
|
} |
|
348
|
|
|
} |
|
349
|
7 |
|
if (false !== $current_position_tm['y']) { |
|
350
|
7 |
|
$delta = abs((float) $y - (float) ($current_position_tm['y'])); |
|
351
|
7 |
|
if ($delta > 10) { |
|
352
|
5 |
|
$text .= "\n"; |
|
353
|
|
|
} |
|
354
|
|
|
} |
|
355
|
7 |
|
$current_position_tm = ['x' => $x, 'y' => $y]; |
|
356
|
7 |
|
break; |
|
357
|
|
|
|
|
358
|
|
|
// set super/subscripting text rise |
|
359
|
6 |
|
case 'Ts': |
|
360
|
|
|
break; |
|
361
|
|
|
|
|
362
|
|
|
// set word spacing |
|
363
|
6 |
|
case 'Tw': |
|
364
|
2 |
|
break; |
|
365
|
|
|
|
|
366
|
|
|
// set horizontal scaling |
|
367
|
6 |
|
case 'Tz': |
|
368
|
|
|
$text .= "\n"; |
|
369
|
|
|
break; |
|
370
|
|
|
|
|
371
|
|
|
// move to start of next line |
|
372
|
6 |
|
case 'T*': |
|
373
|
3 |
|
$text .= "\n"; |
|
374
|
3 |
|
break; |
|
375
|
|
|
|
|
376
|
5 |
|
case 'Da': |
|
377
|
|
|
break; |
|
378
|
|
|
|
|
379
|
5 |
|
case 'Do': |
|
380
|
3 |
|
if (null !== $page) { |
|
381
|
3 |
|
$args = preg_split('/\s/s', $command[self::COMMAND]); |
|
382
|
3 |
|
$id = trim(array_pop($args), '/ '); |
|
383
|
3 |
|
$xobject = $page->getXObject($id); |
|
384
|
|
|
|
|
385
|
|
|
// @todo $xobject could be a ElementXRef object, which would then throw an error |
|
386
|
3 |
|
if (\is_object($xobject) && $xobject instanceof self && !\in_array($xobject->getUniqueId(), self::$recursionStack)) { |
|
387
|
|
|
// Not a circular reference. |
|
388
|
3 |
|
$text .= $xobject->getText($page); |
|
389
|
|
|
} |
|
390
|
|
|
} |
|
391
|
3 |
|
break; |
|
392
|
|
|
|
|
393
|
5 |
|
case 'rg': |
|
394
|
5 |
|
case 'RG': |
|
395
|
2 |
|
break; |
|
396
|
|
|
|
|
397
|
5 |
|
case 're': |
|
398
|
|
|
break; |
|
399
|
|
|
|
|
400
|
5 |
|
case 'co': |
|
401
|
|
|
break; |
|
402
|
|
|
|
|
403
|
5 |
|
case 'cs': |
|
404
|
1 |
|
break; |
|
405
|
|
|
|
|
406
|
5 |
|
case 'gs': |
|
407
|
4 |
|
break; |
|
408
|
|
|
|
|
409
|
4 |
|
case 'en': |
|
410
|
|
|
break; |
|
411
|
|
|
|
|
412
|
4 |
|
case 'sc': |
|
413
|
4 |
|
case 'SC': |
|
414
|
|
|
break; |
|
415
|
|
|
|
|
416
|
4 |
|
case 'g': |
|
417
|
4 |
|
case 'G': |
|
418
|
2 |
|
break; |
|
419
|
|
|
|
|
420
|
3 |
|
case 'V': |
|
421
|
|
|
break; |
|
422
|
|
|
|
|
423
|
3 |
|
case 'vo': |
|
424
|
3 |
|
case 'Vo': |
|
425
|
|
|
break; |
|
426
|
|
|
|
|
427
|
|
|
default: |
|
428
|
|
|
} |
|
429
|
|
|
} |
|
430
|
|
|
} |
|
431
|
|
|
|
|
432
|
8 |
|
array_pop(self::$recursionStack); |
|
433
|
|
|
|
|
434
|
8 |
|
return $text.' '; |
|
435
|
|
|
} |
|
436
|
|
|
|
|
437
|
|
|
/** |
|
438
|
|
|
* @param Page $page |
|
439
|
|
|
* |
|
440
|
|
|
* @return array |
|
441
|
|
|
* |
|
442
|
|
|
* @throws \Exception |
|
443
|
|
|
*/ |
|
444
|
3 |
|
public function getTextArray(Page $page = null) |
|
445
|
|
|
{ |
|
446
|
3 |
|
$text = []; |
|
447
|
3 |
|
$sections = $this->getSectionsText($this->content); |
|
448
|
3 |
|
$current_font = new Font($this->document); |
|
449
|
|
|
|
|
450
|
3 |
|
foreach ($sections as $section) { |
|
451
|
3 |
|
$commands = $this->getCommandsText($section); |
|
452
|
|
|
|
|
453
|
3 |
|
foreach ($commands as $command) { |
|
454
|
3 |
|
switch ($command[self::OPERATOR]) { |
|
455
|
|
|
// set character spacing |
|
456
|
3 |
|
case 'Tc': |
|
457
|
2 |
|
break; |
|
458
|
|
|
|
|
459
|
|
|
// move text current point |
|
460
|
3 |
|
case 'Td': |
|
461
|
3 |
|
break; |
|
462
|
|
|
|
|
463
|
|
|
// move text current point and set leading |
|
464
|
3 |
|
case 'TD': |
|
465
|
|
|
break; |
|
466
|
|
|
|
|
467
|
3 |
|
case 'Tf': |
|
468
|
3 |
|
if (null !== $page) { |
|
469
|
3 |
|
list($id) = preg_split('/\s/s', $command[self::COMMAND]); |
|
470
|
3 |
|
$id = trim($id, '/'); |
|
471
|
3 |
|
$current_font = $page->getFont($id); |
|
472
|
|
|
} |
|
473
|
3 |
|
break; |
|
474
|
|
|
|
|
475
|
3 |
|
case "'": |
|
476
|
3 |
|
case 'Tj': |
|
477
|
3 |
|
$command[self::COMMAND] = [$command]; |
|
478
|
|
|
// no break |
|
479
|
3 |
|
case 'TJ': |
|
480
|
3 |
|
$sub_text = $current_font->decodeText($command[self::COMMAND]); |
|
481
|
3 |
|
$text[] = $sub_text; |
|
482
|
3 |
|
break; |
|
483
|
|
|
|
|
484
|
|
|
// set leading |
|
485
|
3 |
|
case 'TL': |
|
486
|
2 |
|
break; |
|
487
|
|
|
|
|
488
|
3 |
|
case 'Tm': |
|
489
|
2 |
|
break; |
|
490
|
|
|
|
|
491
|
|
|
// set super/subscripting text rise |
|
492
|
3 |
|
case 'Ts': |
|
493
|
|
|
break; |
|
494
|
|
|
|
|
495
|
|
|
// set word spacing |
|
496
|
3 |
|
case 'Tw': |
|
497
|
1 |
|
break; |
|
498
|
|
|
|
|
499
|
|
|
// set horizontal scaling |
|
500
|
3 |
|
case 'Tz': |
|
501
|
|
|
//$text .= "\n"; |
|
502
|
|
|
break; |
|
503
|
|
|
|
|
504
|
|
|
// move to start of next line |
|
505
|
3 |
|
case 'T*': |
|
506
|
|
|
//$text .= "\n"; |
|
507
|
2 |
|
break; |
|
508
|
|
|
|
|
509
|
3 |
|
case 'Da': |
|
510
|
|
|
break; |
|
511
|
|
|
|
|
512
|
3 |
|
case 'Do': |
|
513
|
|
|
if (null !== $page) { |
|
514
|
|
|
$args = preg_split('/\s/s', $command[self::COMMAND]); |
|
515
|
|
|
$id = trim(array_pop($args), '/ '); |
|
|
|
|
|
|
516
|
|
|
if ($xobject = $page->getXObject($id)) { |
|
517
|
|
|
$text[] = $xobject->getText($page); |
|
518
|
|
|
} |
|
519
|
|
|
} |
|
520
|
|
|
break; |
|
521
|
|
|
|
|
522
|
3 |
|
case 'rg': |
|
523
|
3 |
|
case 'RG': |
|
524
|
2 |
|
break; |
|
525
|
|
|
|
|
526
|
3 |
|
case 're': |
|
527
|
|
|
break; |
|
528
|
|
|
|
|
529
|
3 |
|
case 'co': |
|
530
|
|
|
break; |
|
531
|
|
|
|
|
532
|
3 |
|
case 'cs': |
|
533
|
|
|
break; |
|
534
|
|
|
|
|
535
|
3 |
|
case 'gs': |
|
536
|
|
|
break; |
|
537
|
|
|
|
|
538
|
3 |
|
case 'en': |
|
539
|
|
|
break; |
|
540
|
|
|
|
|
541
|
3 |
|
case 'sc': |
|
542
|
3 |
|
case 'SC': |
|
543
|
|
|
break; |
|
544
|
|
|
|
|
545
|
3 |
|
case 'g': |
|
546
|
3 |
|
case 'G': |
|
547
|
2 |
|
break; |
|
548
|
|
|
|
|
549
|
1 |
|
case 'V': |
|
550
|
|
|
break; |
|
551
|
|
|
|
|
552
|
1 |
|
case 'vo': |
|
553
|
1 |
|
case 'Vo': |
|
554
|
|
|
break; |
|
555
|
|
|
|
|
556
|
|
|
default: |
|
557
|
|
|
} |
|
558
|
|
|
} |
|
559
|
|
|
} |
|
560
|
|
|
|
|
561
|
3 |
|
return $text; |
|
562
|
|
|
} |
|
563
|
|
|
|
|
564
|
|
|
/** |
|
565
|
|
|
* @param string $text_part |
|
566
|
|
|
* @param int $offset |
|
567
|
|
|
* |
|
568
|
|
|
* @return array |
|
569
|
|
|
*/ |
|
570
|
15 |
|
public function getCommandsText($text_part, &$offset = 0) |
|
571
|
|
|
{ |
|
572
|
15 |
|
$commands = $matches = []; |
|
573
|
|
|
|
|
574
|
15 |
|
while ($offset < \strlen($text_part)) { |
|
575
|
15 |
|
$offset += strspn($text_part, "\x00\x09\x0a\x0c\x0d\x20", $offset); |
|
576
|
15 |
|
$char = $text_part[$offset]; |
|
577
|
|
|
|
|
578
|
15 |
|
$operator = ''; |
|
579
|
15 |
|
$type = ''; |
|
580
|
15 |
|
$command = false; |
|
581
|
|
|
|
|
582
|
15 |
|
switch ($char) { |
|
583
|
15 |
|
case '/': |
|
584
|
15 |
|
$type = $char; |
|
585
|
15 |
|
if (preg_match( |
|
586
|
15 |
|
'/^\/([A-Z0-9\._,\+]+\s+[0-9.\-]+)\s+([A-Z]+)\s*/si', |
|
587
|
15 |
|
substr($text_part, $offset), |
|
588
|
|
|
$matches |
|
589
|
|
|
) |
|
590
|
|
|
) { |
|
591
|
15 |
|
$operator = $matches[2]; |
|
592
|
15 |
|
$command = $matches[1]; |
|
593
|
15 |
|
$offset += \strlen($matches[0]); |
|
594
|
|
|
} elseif (preg_match( |
|
595
|
5 |
|
'/^\/([A-Z0-9\._,\+]+)\s+([A-Z]+)\s*/si', |
|
596
|
5 |
|
substr($text_part, $offset), |
|
597
|
|
|
$matches |
|
598
|
|
|
) |
|
599
|
|
|
) { |
|
600
|
5 |
|
$operator = $matches[2]; |
|
601
|
5 |
|
$command = $matches[1]; |
|
602
|
5 |
|
$offset += \strlen($matches[0]); |
|
603
|
|
|
} |
|
604
|
15 |
|
break; |
|
605
|
|
|
|
|
606
|
15 |
|
case '[': |
|
607
|
15 |
|
case ']': |
|
608
|
|
|
// array object |
|
609
|
14 |
|
$type = $char; |
|
610
|
14 |
|
if ('[' == $char) { |
|
611
|
14 |
|
++$offset; |
|
612
|
|
|
// get elements |
|
613
|
14 |
|
$command = $this->getCommandsText($text_part, $offset); |
|
614
|
|
|
|
|
615
|
14 |
|
if (preg_match('/^\s*[A-Z]{1,2}\s*/si', substr($text_part, $offset), $matches)) { |
|
616
|
14 |
|
$operator = trim($matches[0]); |
|
617
|
14 |
|
$offset += \strlen($matches[0]); |
|
618
|
|
|
} |
|
619
|
|
|
} else { |
|
620
|
14 |
|
++$offset; |
|
621
|
14 |
|
break; |
|
622
|
|
|
} |
|
623
|
14 |
|
break; |
|
624
|
|
|
|
|
625
|
15 |
|
case '<': |
|
626
|
15 |
|
case '>': |
|
627
|
|
|
// array object |
|
628
|
7 |
|
$type = $char; |
|
629
|
7 |
|
++$offset; |
|
630
|
7 |
|
if ('<' == $char) { |
|
631
|
7 |
|
$strpos = strpos($text_part, '>', $offset); |
|
632
|
7 |
|
$command = substr($text_part, $offset, ($strpos - $offset)); |
|
633
|
7 |
|
$offset = $strpos + 1; |
|
634
|
|
|
} |
|
635
|
|
|
|
|
636
|
7 |
|
if (preg_match('/^\s*[A-Z]{1,2}\s*/si', substr($text_part, $offset), $matches)) { |
|
637
|
6 |
|
$operator = trim($matches[0]); |
|
638
|
6 |
|
$offset += \strlen($matches[0]); |
|
639
|
|
|
} |
|
640
|
7 |
|
break; |
|
641
|
|
|
|
|
642
|
15 |
|
case '(': |
|
643
|
15 |
|
case ')': |
|
644
|
11 |
|
++$offset; |
|
645
|
11 |
|
$type = $char; |
|
646
|
11 |
|
$strpos = $offset; |
|
647
|
11 |
|
if ('(' == $char) { |
|
648
|
11 |
|
$open_bracket = 1; |
|
649
|
11 |
|
while ($open_bracket > 0) { |
|
650
|
11 |
|
if (!isset($text_part[$strpos])) { |
|
651
|
|
|
break; |
|
652
|
|
|
} |
|
653
|
11 |
|
$ch = $text_part[$strpos]; |
|
654
|
11 |
|
switch ($ch) { |
|
655
|
11 |
|
case '\\': |
|
656
|
|
|
// REVERSE SOLIDUS (5Ch) (Backslash) |
|
657
|
|
|
// skip next character |
|
658
|
8 |
|
++$strpos; |
|
659
|
8 |
|
break; |
|
660
|
|
|
|
|
661
|
11 |
|
case '(': |
|
662
|
|
|
// LEFT PARENHESIS (28h) |
|
663
|
|
|
++$open_bracket; |
|
664
|
|
|
break; |
|
665
|
|
|
|
|
666
|
11 |
|
case ')': |
|
667
|
|
|
// RIGHT PARENTHESIS (29h) |
|
668
|
11 |
|
--$open_bracket; |
|
669
|
11 |
|
break; |
|
670
|
|
|
} |
|
671
|
11 |
|
++$strpos; |
|
672
|
|
|
} |
|
673
|
11 |
|
$command = substr($text_part, $offset, ($strpos - $offset - 1)); |
|
674
|
11 |
|
$offset = $strpos; |
|
675
|
|
|
|
|
676
|
11 |
|
if (preg_match('/^\s*([A-Z\']{1,2})\s*/si', substr($text_part, $offset), $matches)) { |
|
677
|
9 |
|
$operator = $matches[1]; |
|
678
|
9 |
|
$offset += \strlen($matches[0]); |
|
679
|
|
|
} |
|
680
|
|
|
} |
|
681
|
11 |
|
break; |
|
682
|
|
|
|
|
683
|
|
|
default: |
|
684
|
|
|
|
|
685
|
15 |
|
if ('ET' == substr($text_part, $offset, 2)) { |
|
686
|
1 |
|
break; |
|
687
|
|
|
} elseif (preg_match( |
|
688
|
15 |
|
'/^\s*(?P<data>([0-9\.\-]+\s*?)+)\s+(?P<id>[A-Z]{1,3})\s*/si', |
|
689
|
15 |
|
substr($text_part, $offset), |
|
690
|
|
|
$matches |
|
691
|
|
|
) |
|
692
|
|
|
) { |
|
693
|
15 |
|
$operator = trim($matches['id']); |
|
694
|
15 |
|
$command = trim($matches['data']); |
|
695
|
15 |
|
$offset += \strlen($matches[0]); |
|
696
|
13 |
|
} elseif (preg_match('/^\s*([0-9\.\-]+\s*?)+\s*/si', substr($text_part, $offset), $matches)) { |
|
697
|
13 |
|
$type = 'n'; |
|
698
|
13 |
|
$command = trim($matches[0]); |
|
699
|
13 |
|
$offset += \strlen($matches[0]); |
|
700
|
9 |
|
} elseif (preg_match('/^\s*([A-Z\*]+)\s*/si', substr($text_part, $offset), $matches)) { |
|
701
|
9 |
|
$type = ''; |
|
702
|
9 |
|
$operator = $matches[1]; |
|
703
|
9 |
|
$command = ''; |
|
704
|
9 |
|
$offset += \strlen($matches[0]); |
|
705
|
|
|
} |
|
706
|
|
|
} |
|
707
|
|
|
|
|
708
|
15 |
|
if (false !== $command) { |
|
709
|
15 |
|
$commands[] = [ |
|
710
|
15 |
|
self::TYPE => $type, |
|
711
|
15 |
|
self::OPERATOR => $operator, |
|
712
|
15 |
|
self::COMMAND => $command, |
|
713
|
|
|
]; |
|
714
|
|
|
} else { |
|
715
|
14 |
|
break; |
|
716
|
|
|
} |
|
717
|
|
|
} |
|
718
|
|
|
|
|
719
|
15 |
|
return $commands; |
|
720
|
|
|
} |
|
721
|
|
|
|
|
722
|
|
|
/** |
|
723
|
|
|
* @param string $content |
|
724
|
|
|
* |
|
725
|
|
|
* @return PDFObject |
|
726
|
|
|
*/ |
|
727
|
23 |
|
public static function factory(Document $document, Header $header, $content) |
|
728
|
|
|
{ |
|
729
|
23 |
|
switch ($header->get('Type')->getContent()) { |
|
730
|
23 |
|
case 'XObject': |
|
731
|
4 |
|
switch ($header->get('Subtype')->getContent()) { |
|
732
|
4 |
|
case 'Image': |
|
733
|
2 |
|
return new Image($document, $header, $content); |
|
734
|
|
|
|
|
735
|
3 |
|
case 'Form': |
|
736
|
3 |
|
return new Form($document, $header, $content); |
|
737
|
|
|
} |
|
738
|
|
|
|
|
739
|
|
|
return new self($document, $header, $content); |
|
740
|
|
|
|
|
741
|
23 |
|
case 'Pages': |
|
742
|
22 |
|
return new Pages($document, $header, $content); |
|
743
|
|
|
|
|
744
|
23 |
|
case 'Page': |
|
745
|
22 |
|
return new Page($document, $header, $content); |
|
746
|
|
|
|
|
747
|
23 |
|
case 'Encoding': |
|
748
|
3 |
|
return new Encoding($document, $header, $content); |
|
749
|
|
|
|
|
750
|
23 |
|
case 'Font': |
|
751
|
22 |
|
$subtype = $header->get('Subtype')->getContent(); |
|
752
|
22 |
|
$classname = '\Smalot\PdfParser\Font\Font'.$subtype; |
|
753
|
|
|
|
|
754
|
22 |
|
if (class_exists($classname)) { |
|
755
|
22 |
|
return new $classname($document, $header, $content); |
|
756
|
|
|
} |
|
757
|
|
|
|
|
758
|
|
|
return new Font($document, $header, $content); |
|
759
|
|
|
|
|
760
|
|
|
default: |
|
761
|
23 |
|
return new self($document, $header, $content); |
|
762
|
|
|
} |
|
763
|
|
|
} |
|
764
|
|
|
|
|
765
|
|
|
/** |
|
766
|
|
|
* Returns unique id identifying the object. |
|
767
|
|
|
* |
|
768
|
|
|
* @return string |
|
769
|
|
|
*/ |
|
770
|
8 |
|
protected function getUniqueId() |
|
771
|
|
|
{ |
|
772
|
8 |
|
return spl_object_hash($this); |
|
773
|
|
|
} |
|
774
|
|
|
} |
|
775
|
|
|
|
smalot /
pdfparser
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