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<?php |
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// phpcs:disable -- Third-party library (Parsedown by Emanuil Rusev). Not subject to project coding standards. |
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|
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namespace FluentCommunity\App\Services; |
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# |
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# |
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# Parsedown |
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# http://parsedown.org |
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# |
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# (c) Emanuil Rusev |
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# http://erusev.com |
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# |
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# For the full license information, view the LICENSE file that was distributed |
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# with this source code. |
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# |
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# |
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|
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class Parsedown |
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{ |
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# ~ |
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|
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const version = '1.8.0-beta-7'; |
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|
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|
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protected $breaksEnabled; |
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|
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|
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protected $markupEscaped; |
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|
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|
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protected $urlsLinked = true; |
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|
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|
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protected $safeMode; |
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|
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|
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protected $strictMode; |
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|
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protected $safeLinksWhitelist = array( |
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'http://', |
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'https://', |
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'ftp://', |
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'ftps://', |
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'mailto:', |
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'tel:', |
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'data:image/png;base64,', |
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'data:image/gif;base64,', |
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'data:image/jpeg;base64,', |
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'irc:', |
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'ircs:', |
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'git:', |
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'ssh:', |
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'news:', |
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'steam:', |
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); |
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|
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# |
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# Lines |
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# |
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|
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protected $BlockTypes = array( |
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'#' => array( 'Header' ), |
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'*' => array( 'Rule', 'List' ), |
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'+' => array( 'List' ), |
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'-' => array( 'SetextHeader', 'Table', 'Rule', 'List' ), |
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'0' => array( 'List' ), |
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'1' => array( 'List' ), |
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'2' => array( 'List' ), |
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'3' => array( 'List' ), |
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'4' => array( 'List' ), |
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'5' => array( 'List' ), |
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'6' => array( 'List' ), |
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'7' => array( 'List' ), |
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'8' => array( 'List' ), |
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'9' => array( 'List' ), |
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':' => array( 'Table' ), |
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'<' => array( 'Comment', 'Markup' ), |
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'=' => array( 'SetextHeader' ), |
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'>' => array( 'Quote' ), |
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'[' => array( 'Reference' ), |
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'_' => array( 'Rule' ), |
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'`' => array( 'FencedCode' ), |
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'|' => array( 'Table' ), |
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'~' => array( 'FencedCode' ), |
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); |
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|
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# ~ |
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|
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protected $unmarkedBlockTypes = array( |
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'Code', |
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); |
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|
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public $minHeaderLevel = 0; |
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|
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public function __construct($config = []) |
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{ |
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|
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$config = wp_parse_args($config, [ |
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'minHeaderLevel' => 0, |
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]); |
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|
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$this->minHeaderLevel = $config['minHeaderLevel']; |
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} |
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|
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# ~ |
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|
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function text($text) |
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{ |
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$Elements = $this->textElements($text); |
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|
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# convert to markup |
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$markup = $this->elements($Elements); |
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|
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# trim line breaks |
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$markup = trim($markup, "\n"); |
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|
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return $markup; |
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} |
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|
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protected function textElements($text) |
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{ |
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# make sure no definitions are set |
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$this->DefinitionData = array(); |
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|
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# standardize line breaks |
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$text = str_replace(array( "\r\n", "\r" ), "\n", $text); |
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|
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# remove surrounding line breaks |
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$text = trim($text, "\n"); |
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|
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# split text into lines |
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$lines = explode("\n", $text); |
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|
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# iterate through lines to identify blocks |
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return $this->linesElements($lines); |
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} |
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|
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# |
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# Setters |
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# |
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|
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function setBreaksEnabled($breaksEnabled) |
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{ |
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$this->breaksEnabled = $breaksEnabled; |
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|
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return $this; |
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} |
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|
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function setMarkupEscaped($markupEscaped) |
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{ |
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$this->markupEscaped = $markupEscaped; |
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|
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return $this; |
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} |
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|
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|
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function setUrlsLinked($urlsLinked) |
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{ |
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$this->urlsLinked = $urlsLinked; |
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|
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return $this; |
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} |
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|
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function setSafeMode($safeMode) |
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{ |
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$this->safeMode = (bool)$safeMode; |
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|
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return $this; |
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} |
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|
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function setStrictMode($strictMode) |
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{ |
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$this->strictMode = (bool)$strictMode; |
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|
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return $this; |
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} |
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|
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# |
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# Blocks |
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# |
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|
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protected function lines(array $lines) |
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{ |
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return $this->elements($this->linesElements($lines)); |
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} |
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|
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protected function linesElements(array $lines) |
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{ |
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$Elements = array(); |
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$CurrentBlock = null; |
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|
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foreach ($lines as $line) { |
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if (chop($line) === '') { |
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if (isset($CurrentBlock)) { |
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$CurrentBlock['interrupted'] = (isset($CurrentBlock['interrupted']) |
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? $CurrentBlock['interrupted'] + 1 : 1 |
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); |
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} |
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|
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continue; |
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} |
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|
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while (($beforeTab = strstr($line, "\t", true)) !== false) { |
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$shortage = 4 - mb_strlen($beforeTab, 'utf-8') % 4; |
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|
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$line = $beforeTab |
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. str_repeat(' ', $shortage) |
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. substr($line, strlen($beforeTab) + 1); |
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} |
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|
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$indent = strspn($line, ' '); |
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|
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$text = $indent > 0 ? substr($line, $indent) : $line; |
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|
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# ~ |
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|
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$Line = array( 'body' => $line, 'indent' => $indent, 'text' => $text ); |
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|
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# ~ |
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|
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if (isset($CurrentBlock['continuable'])) { |
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$methodName = 'block' . $CurrentBlock['type'] . 'Continue'; |
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$Block = $this->$methodName($Line, $CurrentBlock); |
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|
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if (isset($Block)) { |
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$CurrentBlock = $Block; |
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|
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continue; |
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} elseif ($this->isBlockCompletable($CurrentBlock['type'])) { |
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$methodName = 'block' . $CurrentBlock['type'] . 'Complete'; |
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$CurrentBlock = $this->$methodName($CurrentBlock); |
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} |
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} |
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|
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# ~ |
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|
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$marker = $text[0]; |
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|
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# ~ |
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|
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$blockTypes = $this->unmarkedBlockTypes; |
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|
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if (isset($this->BlockTypes[$marker])) { |
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foreach ($this->BlockTypes[$marker] as $blockType) { |
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$blockTypes [] = $blockType; |
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} |
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} |
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|
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# |
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# ~ |
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|
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foreach ($blockTypes as $blockType) { |
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$Block = $this->{"block$blockType"}($Line, $CurrentBlock); |
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|
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if (isset($Block)) { |
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$Block['type'] = $blockType; |
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|
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if (!isset($Block['identified'])) { |
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if (isset($CurrentBlock)) { |
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$Elements[] = $this->extractElement($CurrentBlock); |
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} |
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|
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$Block['identified'] = true; |
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} |
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|
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if ($this->isBlockContinuable($blockType)) { |
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$Block['continuable'] = true; |
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} |
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|
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$CurrentBlock = $Block; |
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|
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continue 2; |
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} |
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} |
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|
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# ~ |
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|
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if (isset($CurrentBlock) and $CurrentBlock['type'] === 'Paragraph') { |
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$Block = $this->paragraphContinue($Line, $CurrentBlock); |
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} |
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|
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if (isset($Block)) { |
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$CurrentBlock = $Block; |
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} else { |
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if (isset($CurrentBlock)) { |
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$Elements[] = $this->extractElement($CurrentBlock); |
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} |
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|
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$CurrentBlock = $this->paragraph($Line); |
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|
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$CurrentBlock['identified'] = true; |
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} |
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} |
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|
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# ~ |
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|
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if (isset($CurrentBlock['continuable']) and $this->isBlockCompletable($CurrentBlock['type'])) { |
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$methodName = 'block' . $CurrentBlock['type'] . 'Complete'; |
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$CurrentBlock = $this->$methodName($CurrentBlock); |
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} |
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|
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# ~ |
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|
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if (isset($CurrentBlock)) { |
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$Elements[] = $this->extractElement($CurrentBlock); |
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} |
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|
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# ~ |
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|
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return $Elements; |
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} |
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|
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protected function extractElement(array $Component) |
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{ |
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if (!isset($Component['element'])) { |
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if (isset($Component['markup'])) { |
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$Component['element'] = array( 'rawHtml' => $Component['markup'] ); |
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} elseif (isset($Component['hidden'])) { |
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$Component['element'] = array(); |
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} |
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} |
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|
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return $Component['element']; |
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} |
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|
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protected function isBlockContinuable($Type) |
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{ |
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return method_exists($this, 'block' . $Type . 'Continue'); |
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} |
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|
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protected function isBlockCompletable($Type) |
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{ |
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return method_exists($this, 'block' . $Type . 'Complete'); |
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} |
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|
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# |
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# Code |
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|
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protected function blockCode($Line, $Block = null) |
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{ |
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if (isset($Block) and $Block['type'] === 'Paragraph' and !isset($Block['interrupted'])) { |
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return; |
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} |
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|
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if ($Line['indent'] >= 4) { |
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$text = substr($Line['body'], 4); |
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|
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$Block = array( |
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'element' => array( |
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'name' => 'pre', |
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'element' => array( |
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'name' => 'code', |
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'text' => $text, |
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), |
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), |
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); |
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|
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return $Block; |
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} |
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} |
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|
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protected function blockCodeContinue($Line, $Block) |
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{ |
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if ($Line['indent'] >= 4) { |
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if (isset($Block['interrupted'])) { |
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$Block['element']['element']['text'] .= str_repeat("\n", $Block['interrupted']); |
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|
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unset($Block['interrupted']); |
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} |
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|
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$Block['element']['element']['text'] .= "\n"; |
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|
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$text = substr($Line['body'], 4); |
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|
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$Block['element']['element']['text'] .= $text; |
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|
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return $Block; |
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} |
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} |
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|
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protected function blockCodeComplete($Block) |
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{ |
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return $Block; |
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} |
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|
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# |
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# Comment |
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|
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protected function blockComment($Line) |
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{ |
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if ($this->markupEscaped or $this->safeMode) { |
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return; |
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} |
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|
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if (strpos($Line['text'], '<!--') === 0) { |
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$Block = array( |
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'element' => array( |
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'rawHtml' => $Line['body'], |
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'autobreak' => true, |
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), |
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); |
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|
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if (strpos($Line['text'], '-->') !== false) { |
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$Block['closed'] = true; |
| 405 |
} |
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|
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return $Block; |
| 408 |
} |
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} |
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|
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protected function blockCommentContinue($Line, array $Block) |
| 412 |
{ |
| 413 |
if (isset($Block['closed'])) { |
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return; |
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} |
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|
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$Block['element']['rawHtml'] .= "\n" . $Line['body']; |
| 418 |
|
| 419 |
if (strpos($Line['text'], '-->') !== false) { |
| 420 |
$Block['closed'] = true; |
| 421 |
} |
| 422 |
|
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return $Block; |
| 424 |
} |
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|
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# |
| 427 |
# Fenced Code |
| 428 |
|
| 429 |
protected function blockFencedCode($Line) |
| 430 |
{ |
| 431 |
$marker = $Line['text'][0]; |
| 432 |
|
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$openerLength = strspn($Line['text'], $marker); |
| 434 |
|
| 435 |
if ($openerLength < 3) { |
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return; |
| 437 |
} |
| 438 |
|
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$infostring = trim(substr($Line['text'], $openerLength), "\t "); |
| 440 |
|
| 441 |
if (strpos($infostring, '`') !== false) { |
| 442 |
return; |
| 443 |
} |
| 444 |
|
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$Element = array( |
| 446 |
'name' => 'code', |
| 447 |
'text' => '', |
| 448 |
); |
| 449 |
|
| 450 |
if ($infostring !== '') { |
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/** |
| 452 |
* https://www.w3.org/TR/2011/WD-html5-20110525/elements.html#classes |
| 453 |
* Every HTML element may have a class attribute specified. |
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* The attribute, if specified, must have a value that is a set |
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* of space-separated tokens representing the various classes |
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* that the element belongs to. |
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* [...] |
| 458 |
* The space characters, for the purposes of this specification, |
| 459 |
* are U+0020 SPACE, U+0009 CHARACTER TABULATION (tab), |
| 460 |
* U+000A LINE FEED (LF), U+000C FORM FEED (FF), and |
| 461 |
* U+000D CARRIAGE RETURN (CR). |
| 462 |
*/ |
| 463 |
$language = substr($infostring, 0, strcspn($infostring, " \t\n\f\r")); |
| 464 |
|
| 465 |
$Element['attributes'] = array( 'class' => "language-$language" ); |
| 466 |
} |
| 467 |
|
| 468 |
$Block = array( |
| 469 |
'char' => $marker, |
| 470 |
'openerLength' => $openerLength, |
| 471 |
'element' => array( |
| 472 |
'name' => 'pre', |
| 473 |
'element' => $Element, |
| 474 |
), |
| 475 |
); |
| 476 |
|
| 477 |
return $Block; |
| 478 |
} |
| 479 |
|
| 480 |
protected function blockFencedCodeContinue($Line, $Block) |
| 481 |
{ |
| 482 |
if (isset($Block['complete'])) { |
| 483 |
return; |
| 484 |
} |
| 485 |
|
| 486 |
if (isset($Block['interrupted'])) { |
| 487 |
$Block['element']['element']['text'] .= str_repeat("\n", $Block['interrupted']); |
| 488 |
|
| 489 |
unset($Block['interrupted']); |
| 490 |
} |
| 491 |
|
| 492 |
if (($len = strspn($Line['text'], $Block['char'])) >= $Block['openerLength'] |
| 493 |
and chop(substr($Line['text'], $len), ' ') === '' |
| 494 |
) { |
| 495 |
$Block['element']['element']['text'] = substr($Block['element']['element']['text'], 1); |
| 496 |
|
| 497 |
$Block['complete'] = true; |
| 498 |
|
| 499 |
return $Block; |
| 500 |
} |
| 501 |
|
| 502 |
$Block['element']['element']['text'] .= "\n" . $Line['body']; |
| 503 |
|
| 504 |
return $Block; |
| 505 |
} |
| 506 |
|
| 507 |
protected function blockFencedCodeComplete($Block) |
| 508 |
{ |
| 509 |
return $Block; |
| 510 |
} |
| 511 |
|
| 512 |
# |
| 513 |
# Header |
| 514 |
|
| 515 |
protected function blockHeader($Line) |
| 516 |
{ |
| 517 |
$level = strspn($Line['text'], '#'); |
| 518 |
|
| 519 |
if ($level > 6) { |
| 520 |
return; |
| 521 |
} |
| 522 |
|
| 523 |
if($level <= $this->minHeaderLevel) { |
| 524 |
return; |
| 525 |
} |
| 526 |
|
| 527 |
// Add this line to check for a space after the "#" symbols |
| 528 |
if (substr($Line['text'], $level, 1) !== ' ') { |
| 529 |
return; |
| 530 |
} |
| 531 |
|
| 532 |
$text = trim($Line['text'], '#'); |
| 533 |
|
| 534 |
if ($this->strictMode and isset($text[0]) and $text[0] !== ' ') { |
| 535 |
return; |
| 536 |
} |
| 537 |
|
| 538 |
$text = trim($text, ' '); |
| 539 |
|
| 540 |
$Block = array( |
| 541 |
'element' => array( |
| 542 |
'name' => 'h' . $level, |
| 543 |
'handler' => array( |
| 544 |
'function' => 'lineElements', |
| 545 |
'argument' => $text, |
| 546 |
'destination' => 'elements', |
| 547 |
), |
| 548 |
), |
| 549 |
); |
| 550 |
|
| 551 |
return $Block; |
| 552 |
} |
| 553 |
|
| 554 |
# |
| 555 |
# List |
| 556 |
|
| 557 |
protected function blockList($Line, array $CurrentBlock = null) |
| 558 |
{ |
| 559 |
list($name, $pattern) = $Line['text'][0] <= '-' ? array( 'ul', '[*+-]' ) : array( 'ol', '[0-9]{1,9}+[.\)]' ); |
| 560 |
|
| 561 |
if (preg_match('/^(' . $pattern . '([ ]++|$))(.*+)/', $Line['text'], $matches)) { |
| 562 |
$contentIndent = strlen($matches[2]); |
| 563 |
|
| 564 |
if ($contentIndent >= 5) { |
| 565 |
$contentIndent -= 1; |
| 566 |
$matches[1] = substr($matches[1], 0, -$contentIndent); |
| 567 |
$matches[3] = str_repeat(' ', $contentIndent) . $matches[3]; |
| 568 |
} elseif ($contentIndent === 0) { |
| 569 |
$matches[1] .= ' '; |
| 570 |
} |
| 571 |
|
| 572 |
$markerWithoutWhitespace = strstr($matches[1], ' ', true); |
| 573 |
|
| 574 |
$Block = array( |
| 575 |
'indent' => $Line['indent'], |
| 576 |
'pattern' => $pattern, |
| 577 |
'data' => array( |
| 578 |
'type' => $name, |
| 579 |
'marker' => $matches[1], |
| 580 |
'markerType' => ($name === 'ul' ? $markerWithoutWhitespace : substr($markerWithoutWhitespace, -1)), |
| 581 |
), |
| 582 |
'element' => array( |
| 583 |
'name' => $name, |
| 584 |
'elements' => array(), |
| 585 |
), |
| 586 |
); |
| 587 |
$Block['data']['markerTypeRegex'] = preg_quote($Block['data']['markerType'], '/'); |
| 588 |
|
| 589 |
if ($name === 'ol') { |
| 590 |
$listStart = ltrim(strstr($matches[1], $Block['data']['markerType'], true), '0') ?: '0'; |
| 591 |
|
| 592 |
if ($listStart !== '1') { |
| 593 |
if ( |
| 594 |
isset($CurrentBlock) |
| 595 |
and $CurrentBlock['type'] === 'Paragraph' |
| 596 |
and !isset($CurrentBlock['interrupted']) |
| 597 |
) { |
| 598 |
return; |
| 599 |
} |
| 600 |
|
| 601 |
$Block['element']['attributes'] = array( 'start' => $listStart ); |
| 602 |
} |
| 603 |
} |
| 604 |
|
| 605 |
$Block['li'] = array( |
| 606 |
'name' => 'li', |
| 607 |
'handler' => array( |
| 608 |
'function' => 'li', |
| 609 |
'argument' => !empty($matches[3]) ? array( $matches[3] ) : array(), |
| 610 |
'destination' => 'elements', |
| 611 |
), |
| 612 |
); |
| 613 |
|
| 614 |
$Block['element']['elements'] [] = &$Block['li']; |
| 615 |
|
| 616 |
return $Block; |
| 617 |
} |
| 618 |
} |
| 619 |
|
| 620 |
protected function blockListContinue($Line, array $Block) |
| 621 |
{ |
| 622 |
if (isset($Block['interrupted']) and empty($Block['li']['handler']['argument'])) { |
| 623 |
return null; |
| 624 |
} |
| 625 |
|
| 626 |
$requiredIndent = ($Block['indent'] + strlen($Block['data']['marker'])); |
| 627 |
|
| 628 |
if ($Line['indent'] < $requiredIndent |
| 629 |
and ( |
| 630 |
( |
| 631 |
$Block['data']['type'] === 'ol' |
| 632 |
and preg_match('/^[0-9]++' . $Block['data']['markerTypeRegex'] . '(?:[ ]++(.*)|$)/', $Line['text'], $matches) |
| 633 |
) or ( |
| 634 |
$Block['data']['type'] === 'ul' |
| 635 |
and preg_match('/^' . $Block['data']['markerTypeRegex'] . '(?:[ ]++(.*)|$)/', $Line['text'], $matches) |
| 636 |
) |
| 637 |
) |
| 638 |
) { |
| 639 |
if (isset($Block['interrupted'])) { |
| 640 |
$Block['li']['handler']['argument'] [] = ''; |
| 641 |
|
| 642 |
$Block['loose'] = true; |
| 643 |
|
| 644 |
unset($Block['interrupted']); |
| 645 |
} |
| 646 |
|
| 647 |
unset($Block['li']); |
| 648 |
|
| 649 |
$text = isset($matches[1]) ? $matches[1] : ''; |
| 650 |
|
| 651 |
$Block['indent'] = $Line['indent']; |
| 652 |
|
| 653 |
$Block['li'] = array( |
| 654 |
'name' => 'li', |
| 655 |
'handler' => array( |
| 656 |
'function' => 'li', |
| 657 |
'argument' => array( $text ), |
| 658 |
'destination' => 'elements', |
| 659 |
), |
| 660 |
); |
| 661 |
|
| 662 |
$Block['element']['elements'] [] = &$Block['li']; |
| 663 |
|
| 664 |
return $Block; |
| 665 |
} elseif ($Line['indent'] < $requiredIndent and $this->blockList($Line)) { |
| 666 |
return null; |
| 667 |
} |
| 668 |
|
| 669 |
if ($Line['text'][0] === '[' and $this->blockReference($Line)) { |
| 670 |
return $Block; |
| 671 |
} |
| 672 |
|
| 673 |
if ($Line['indent'] >= $requiredIndent) { |
| 674 |
if (isset($Block['interrupted'])) { |
| 675 |
$Block['li']['handler']['argument'] [] = ''; |
| 676 |
|
| 677 |
$Block['loose'] = true; |
| 678 |
|
| 679 |
unset($Block['interrupted']); |
| 680 |
} |
| 681 |
|
| 682 |
$text = substr($Line['body'], $requiredIndent); |
| 683 |
|
| 684 |
$Block['li']['handler']['argument'] [] = $text; |
| 685 |
|
| 686 |
return $Block; |
| 687 |
} |
| 688 |
|
| 689 |
if (!isset($Block['interrupted'])) { |
| 690 |
$text = preg_replace('/^[ ]{0,' . $requiredIndent . '}+/', '', $Line['body']); |
| 691 |
|
| 692 |
$Block['li']['handler']['argument'] [] = $text; |
| 693 |
|
| 694 |
return $Block; |
| 695 |
} |
| 696 |
} |
| 697 |
|
| 698 |
protected function blockListComplete(array $Block) |
| 699 |
{ |
| 700 |
if (isset($Block['loose'])) { |
| 701 |
foreach ($Block['element']['elements'] as &$li) { |
| 702 |
if (end($li['handler']['argument']) !== '') { |
| 703 |
$li['handler']['argument'] [] = ''; |
| 704 |
} |
| 705 |
} |
| 706 |
} |
| 707 |
|
| 708 |
return $Block; |
| 709 |
} |
| 710 |
|
| 711 |
# |
| 712 |
# Quote |
| 713 |
|
| 714 |
protected function blockQuote($Line) |
| 715 |
{ |
| 716 |
if (preg_match('/^>[ ]?+(.*+)/', $Line['text'], $matches)) { |
| 717 |
$Block = array( |
| 718 |
'element' => array( |
| 719 |
'name' => 'blockquote', |
| 720 |
'handler' => array( |
| 721 |
'function' => 'linesElements', |
| 722 |
'argument' => (array)$matches[1], |
| 723 |
'destination' => 'elements', |
| 724 |
), |
| 725 |
), |
| 726 |
); |
| 727 |
|
| 728 |
return $Block; |
| 729 |
} |
| 730 |
} |
| 731 |
|
| 732 |
protected function blockQuoteContinue($Line, array $Block) |
| 733 |
{ |
| 734 |
if (isset($Block['interrupted'])) { |
| 735 |
return; |
| 736 |
} |
| 737 |
|
| 738 |
if ($Line['text'][0] === '>' and preg_match('/^>[ ]?+(.*+)/', $Line['text'], $matches)) { |
| 739 |
$Block['element']['handler']['argument'] [] = $matches[1]; |
| 740 |
|
| 741 |
return $Block; |
| 742 |
} |
| 743 |
|
| 744 |
if (!isset($Block['interrupted'])) { |
| 745 |
$Block['element']['handler']['argument'] [] = $Line['text']; |
| 746 |
|
| 747 |
return $Block; |
| 748 |
} |
| 749 |
} |
| 750 |
|
| 751 |
# |
| 752 |
# Rule |
| 753 |
|
| 754 |
protected function blockRule($Line) |
| 755 |
{ |
| 756 |
$marker = $Line['text'][0]; |
| 757 |
|
| 758 |
if (substr_count($Line['text'], $marker) >= 3 and chop($Line['text'], " $marker") === '') { |
| 759 |
$Block = array( |
| 760 |
'element' => array( |
| 761 |
'name' => 'hr', |
| 762 |
), |
| 763 |
); |
| 764 |
|
| 765 |
return $Block; |
| 766 |
} |
| 767 |
} |
| 768 |
|
| 769 |
# |
| 770 |
# Setext |
| 771 |
|
| 772 |
protected function blockSetextHeader($Line, array $Block = null) |
| 773 |
{ |
| 774 |
if (!isset($Block) or $Block['type'] !== 'Paragraph' or isset($Block['interrupted'])) { |
| 775 |
return; |
| 776 |
} |
| 777 |
|
| 778 |
if ($Line['indent'] < 4 and chop(chop($Line['text'], ' '), $Line['text'][0]) === '') { |
| 779 |
$Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2'; |
| 780 |
|
| 781 |
return $Block; |
| 782 |
} |
| 783 |
} |
| 784 |
|
| 785 |
# |
| 786 |
# Markup |
| 787 |
|
| 788 |
protected function blockMarkup($Line) |
| 789 |
{ |
| 790 |
if ($this->markupEscaped or $this->safeMode) { |
| 791 |
return; |
| 792 |
} |
| 793 |
|
| 794 |
if (preg_match('/^<[\/]?+(\w*)(?:[ ]*+' . $this->regexHtmlAttribute . ')*+[ ]*+(\/)?>/', $Line['text'], $matches)) { |
| 795 |
$element = strtolower($matches[1]); |
| 796 |
|
| 797 |
if (in_array($element, $this->textLevelElements)) { |
| 798 |
return; |
| 799 |
} |
| 800 |
|
| 801 |
$Block = array( |
| 802 |
'name' => $matches[1], |
| 803 |
'element' => array( |
| 804 |
'rawHtml' => $Line['text'], |
| 805 |
'autobreak' => true, |
| 806 |
), |
| 807 |
); |
| 808 |
|
| 809 |
return $Block; |
| 810 |
} |
| 811 |
} |
| 812 |
|
| 813 |
protected function blockMarkupContinue($Line, array $Block) |
| 814 |
{ |
| 815 |
if (isset($Block['closed']) or isset($Block['interrupted'])) { |
| 816 |
return; |
| 817 |
} |
| 818 |
|
| 819 |
$Block['element']['rawHtml'] .= "\n" . $Line['body']; |
| 820 |
|
| 821 |
return $Block; |
| 822 |
} |
| 823 |
|
| 824 |
# |
| 825 |
# Reference |
| 826 |
|
| 827 |
protected function blockReference($Line) |
| 828 |
{ |
| 829 |
if (strpos($Line['text'], ']') !== false |
| 830 |
and preg_match('/^\[(.+?)\]:[ ]*+<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*+$/', $Line['text'], $matches) |
| 831 |
) { |
| 832 |
$id = strtolower($matches[1]); |
| 833 |
|
| 834 |
$Data = array( |
| 835 |
'url' => $matches[2], |
| 836 |
'title' => isset($matches[3]) ? $matches[3] : null, |
| 837 |
); |
| 838 |
|
| 839 |
$this->DefinitionData['Reference'][$id] = $Data; |
| 840 |
|
| 841 |
$Block = array( |
| 842 |
'element' => array(), |
| 843 |
); |
| 844 |
|
| 845 |
return $Block; |
| 846 |
} |
| 847 |
} |
| 848 |
|
| 849 |
# |
| 850 |
# Table |
| 851 |
|
| 852 |
protected function blockTable($Line, array $Block = null) |
| 853 |
{ |
| 854 |
if (!isset($Block) or $Block['type'] !== 'Paragraph' or isset($Block['interrupted'])) { |
| 855 |
return; |
| 856 |
} |
| 857 |
|
| 858 |
if ( |
| 859 |
strpos($Block['element']['handler']['argument'], '|') === false |
| 860 |
and strpos($Line['text'], '|') === false |
| 861 |
and strpos($Line['text'], ':') === false |
| 862 |
or strpos($Block['element']['handler']['argument'], "\n") !== false |
| 863 |
) { |
| 864 |
return; |
| 865 |
} |
| 866 |
|
| 867 |
if (chop($Line['text'], ' -:|') !== '') { |
| 868 |
return; |
| 869 |
} |
| 870 |
|
| 871 |
$alignments = array(); |
| 872 |
|
| 873 |
$divider = $Line['text']; |
| 874 |
|
| 875 |
$divider = trim($divider); |
| 876 |
$divider = trim($divider, '|'); |
| 877 |
|
| 878 |
$dividerCells = explode('|', $divider); |
| 879 |
|
| 880 |
foreach ($dividerCells as $dividerCell) { |
| 881 |
$dividerCell = trim($dividerCell); |
| 882 |
|
| 883 |
if ($dividerCell === '') { |
| 884 |
return; |
| 885 |
} |
| 886 |
|
| 887 |
$alignment = null; |
| 888 |
|
| 889 |
if ($dividerCell[0] === ':') { |
| 890 |
$alignment = 'left'; |
| 891 |
} |
| 892 |
|
| 893 |
if (substr($dividerCell, -1) === ':') { |
| 894 |
$alignment = $alignment === 'left' ? 'center' : 'right'; |
| 895 |
} |
| 896 |
|
| 897 |
$alignments [] = $alignment; |
| 898 |
} |
| 899 |
|
| 900 |
# ~ |
| 901 |
|
| 902 |
$HeaderElements = array(); |
| 903 |
|
| 904 |
$header = $Block['element']['handler']['argument']; |
| 905 |
|
| 906 |
$header = trim($header); |
| 907 |
$header = trim($header, '|'); |
| 908 |
|
| 909 |
$headerCells = explode('|', $header); |
| 910 |
|
| 911 |
if (count($headerCells) !== count($alignments)) { |
| 912 |
return; |
| 913 |
} |
| 914 |
|
| 915 |
foreach ($headerCells as $index => $headerCell) { |
| 916 |
$headerCell = trim($headerCell); |
| 917 |
|
| 918 |
$HeaderElement = array( |
| 919 |
'name' => 'th', |
| 920 |
'handler' => array( |
| 921 |
'function' => 'lineElements', |
| 922 |
'argument' => $headerCell, |
| 923 |
'destination' => 'elements', |
| 924 |
), |
| 925 |
); |
| 926 |
|
| 927 |
if (isset($alignments[$index])) { |
| 928 |
$alignment = $alignments[$index]; |
| 929 |
|
| 930 |
$HeaderElement['attributes'] = array( |
| 931 |
'style' => "text-align: $alignment;", |
| 932 |
); |
| 933 |
} |
| 934 |
|
| 935 |
$HeaderElements [] = $HeaderElement; |
| 936 |
} |
| 937 |
|
| 938 |
# ~ |
| 939 |
|
| 940 |
$Block = array( |
| 941 |
'alignments' => $alignments, |
| 942 |
'identified' => true, |
| 943 |
'element' => array( |
| 944 |
'name' => 'table', |
| 945 |
'elements' => array(), |
| 946 |
), |
| 947 |
); |
| 948 |
|
| 949 |
$Block['element']['elements'] [] = array( |
| 950 |
'name' => 'thead', |
| 951 |
); |
| 952 |
|
| 953 |
$Block['element']['elements'] [] = array( |
| 954 |
'name' => 'tbody', |
| 955 |
'elements' => array(), |
| 956 |
); |
| 957 |
|
| 958 |
$Block['element']['elements'][0]['elements'] [] = array( |
| 959 |
'name' => 'tr', |
| 960 |
'elements' => $HeaderElements, |
| 961 |
); |
| 962 |
|
| 963 |
return $Block; |
| 964 |
} |
| 965 |
|
| 966 |
protected function blockTableContinue($Line, array $Block) |
| 967 |
{ |
| 968 |
if (isset($Block['interrupted'])) { |
| 969 |
return; |
| 970 |
} |
| 971 |
|
| 972 |
if (count($Block['alignments']) === 1 or $Line['text'][0] === '|' or strpos($Line['text'], '|')) { |
| 973 |
$Elements = array(); |
| 974 |
|
| 975 |
$row = $Line['text']; |
| 976 |
|
| 977 |
$row = trim($row); |
| 978 |
$row = trim($row, '|'); |
| 979 |
|
| 980 |
preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]++`|`)++/', $row, $matches); |
| 981 |
|
| 982 |
$cells = array_slice($matches[0], 0, count($Block['alignments'])); |
| 983 |
|
| 984 |
foreach ($cells as $index => $cell) { |
| 985 |
$cell = trim($cell); |
| 986 |
|
| 987 |
$Element = array( |
| 988 |
'name' => 'td', |
| 989 |
'handler' => array( |
| 990 |
'function' => 'lineElements', |
| 991 |
'argument' => $cell, |
| 992 |
'destination' => 'elements', |
| 993 |
), |
| 994 |
); |
| 995 |
|
| 996 |
if (isset($Block['alignments'][$index])) { |
| 997 |
$Element['attributes'] = array( |
| 998 |
'style' => 'text-align: ' . $Block['alignments'][$index] . ';', |
| 999 |
); |
| 1000 |
} |
| 1001 |
|
| 1002 |
$Elements [] = $Element; |
| 1003 |
} |
| 1004 |
|
| 1005 |
$Element = array( |
| 1006 |
'name' => 'tr', |
| 1007 |
'elements' => $Elements, |
| 1008 |
); |
| 1009 |
|
| 1010 |
$Block['element']['elements'][1]['elements'] [] = $Element; |
| 1011 |
|
| 1012 |
return $Block; |
| 1013 |
} |
| 1014 |
} |
| 1015 |
|
| 1016 |
# |
| 1017 |
# ~ |
| 1018 |
# |
| 1019 |
|
| 1020 |
protected function paragraph($Line) |
| 1021 |
{ |
| 1022 |
return array( |
| 1023 |
'type' => 'Paragraph', |
| 1024 |
'element' => array( |
| 1025 |
'name' => 'p', |
| 1026 |
'handler' => array( |
| 1027 |
'function' => 'lineElements', |
| 1028 |
'argument' => $Line['text'], |
| 1029 |
'destination' => 'elements', |
| 1030 |
), |
| 1031 |
), |
| 1032 |
); |
| 1033 |
} |
| 1034 |
|
| 1035 |
protected function paragraphContinue($Line, array $Block) |
| 1036 |
{ |
| 1037 |
if (isset($Block['interrupted'])) { |
| 1038 |
return; |
| 1039 |
} |
| 1040 |
|
| 1041 |
$Block['element']['handler']['argument'] .= "\n" . $Line['text']; |
| 1042 |
|
| 1043 |
return $Block; |
| 1044 |
} |
| 1045 |
|
| 1046 |
# |
| 1047 |
# Inline Elements |
| 1048 |
# |
| 1049 |
|
| 1050 |
protected $InlineTypes = array( |
| 1051 |
'!' => array( 'Image' ), |
| 1052 |
'&' => array( 'SpecialCharacter' ), |
| 1053 |
'*' => array( 'Emphasis' ), |
| 1054 |
':' => array( 'Url' ), |
| 1055 |
'<' => array( 'UrlTag', 'EmailTag', 'Markup' ), |
| 1056 |
'[' => array( 'Link' ), |
| 1057 |
'_' => array( 'Emphasis' ), |
| 1058 |
'`' => array( 'Code' ), |
| 1059 |
'~' => array( 'Strikethrough' ), |
| 1060 |
'\\' => array( 'EscapeSequence' ), |
| 1061 |
); |
| 1062 |
|
| 1063 |
# ~ |
| 1064 |
|
| 1065 |
protected $inlineMarkerList = '!*_&[:<`~\\'; |
| 1066 |
|
| 1067 |
# |
| 1068 |
# ~ |
| 1069 |
# |
| 1070 |
|
| 1071 |
public function line($text, $nonNestables = array()) |
| 1072 |
{ |
| 1073 |
return $this->elements($this->lineElements($text, $nonNestables)); |
| 1074 |
} |
| 1075 |
|
| 1076 |
protected function lineElements($text, $nonNestables = array()) |
| 1077 |
{ |
| 1078 |
# standardize line breaks |
| 1079 |
$text = str_replace(array( "\r\n", "\r" ), "\n", $text); |
| 1080 |
|
| 1081 |
$Elements = array(); |
| 1082 |
|
| 1083 |
$nonNestables = (empty($nonNestables) |
| 1084 |
? array() |
| 1085 |
: array_combine($nonNestables, $nonNestables) |
| 1086 |
); |
| 1087 |
|
| 1088 |
# $excerpt is based on the first occurrence of a marker |
| 1089 |
|
| 1090 |
while ($excerpt = strpbrk($text, $this->inlineMarkerList)) { |
| 1091 |
$marker = $excerpt[0]; |
| 1092 |
|
| 1093 |
$markerPosition = strlen($text) - strlen($excerpt); |
| 1094 |
|
| 1095 |
$Excerpt = array( 'text' => $excerpt, 'context' => $text ); |
| 1096 |
|
| 1097 |
foreach ($this->InlineTypes[$marker] as $inlineType) { |
| 1098 |
# check to see if the current inline type is nestable in the current context |
| 1099 |
|
| 1100 |
if (isset($nonNestables[$inlineType])) { |
| 1101 |
continue; |
| 1102 |
} |
| 1103 |
|
| 1104 |
$Inline = $this->{"inline$inlineType"}($Excerpt); |
| 1105 |
|
| 1106 |
if (!isset($Inline)) { |
| 1107 |
continue; |
| 1108 |
} |
| 1109 |
|
| 1110 |
# makes sure that the inline belongs to "our" marker |
| 1111 |
|
| 1112 |
if (isset($Inline['position']) and $Inline['position'] > $markerPosition) { |
| 1113 |
continue; |
| 1114 |
} |
| 1115 |
|
| 1116 |
# sets a default inline position |
| 1117 |
|
| 1118 |
if (!isset($Inline['position'])) { |
| 1119 |
$Inline['position'] = $markerPosition; |
| 1120 |
} |
| 1121 |
|
| 1122 |
# cause the new element to 'inherit' our non nestables |
| 1123 |
|
| 1124 |
|
| 1125 |
$Inline['element']['nonNestables'] = isset($Inline['element']['nonNestables']) |
| 1126 |
? array_merge($Inline['element']['nonNestables'], $nonNestables) |
| 1127 |
: $nonNestables; |
| 1128 |
|
| 1129 |
# the text that comes before the inline |
| 1130 |
$unmarkedText = substr($text, 0, $Inline['position']); |
| 1131 |
|
| 1132 |
# compile the unmarked text |
| 1133 |
$InlineText = $this->inlineText($unmarkedText); |
| 1134 |
$Elements[] = $InlineText['element']; |
| 1135 |
|
| 1136 |
# compile the inline |
| 1137 |
$Elements[] = $this->extractElement($Inline); |
| 1138 |
|
| 1139 |
# remove the examined text |
| 1140 |
$text = substr($text, $Inline['position'] + $Inline['extent']); |
| 1141 |
|
| 1142 |
continue 2; |
| 1143 |
} |
| 1144 |
|
| 1145 |
# the marker does not belong to an inline |
| 1146 |
|
| 1147 |
$unmarkedText = substr($text, 0, $markerPosition + 1); |
| 1148 |
|
| 1149 |
$InlineText = $this->inlineText($unmarkedText); |
| 1150 |
$Elements[] = $InlineText['element']; |
| 1151 |
|
| 1152 |
$text = substr($text, $markerPosition + 1); |
| 1153 |
} |
| 1154 |
|
| 1155 |
$InlineText = $this->inlineText($text); |
| 1156 |
$Elements[] = $InlineText['element']; |
| 1157 |
|
| 1158 |
foreach ($Elements as &$Element) { |
| 1159 |
if (!isset($Element['autobreak'])) { |
| 1160 |
$Element['autobreak'] = false; |
| 1161 |
} |
| 1162 |
} |
| 1163 |
|
| 1164 |
return $Elements; |
| 1165 |
} |
| 1166 |
|
| 1167 |
# |
| 1168 |
# ~ |
| 1169 |
# |
| 1170 |
|
| 1171 |
protected function inlineText($text) |
| 1172 |
{ |
| 1173 |
$Inline = array( |
| 1174 |
'extent' => strlen($text), |
| 1175 |
'element' => array(), |
| 1176 |
); |
| 1177 |
|
| 1178 |
$Inline['element']['elements'] = self::pregReplaceElements( |
| 1179 |
$this->breaksEnabled ? '/[ ]*+\n/' : '/(?:[ ]*+\\\\|[ ]{2,}+)\n/', |
| 1180 |
array( |
| 1181 |
array( 'name' => 'br' ), |
| 1182 |
array( 'text' => "\n" ), |
| 1183 |
), |
| 1184 |
$text |
| 1185 |
); |
| 1186 |
|
| 1187 |
return $Inline; |
| 1188 |
} |
| 1189 |
|
| 1190 |
protected function inlineCode($Excerpt) |
| 1191 |
{ |
| 1192 |
$marker = $Excerpt['text'][0]; |
| 1193 |
|
| 1194 |
if (preg_match('/^([' . $marker . ']++)[ ]*+(.+?)[ ]*+(?<![' . $marker . '])\1(?!' . $marker . ')/s', $Excerpt['text'], $matches)) { |
| 1195 |
$text = $matches[2]; |
| 1196 |
$text = preg_replace('/[ ]*+\n/', ' ', $text); |
| 1197 |
|
| 1198 |
return array( |
| 1199 |
'extent' => strlen($matches[0]), |
| 1200 |
'element' => array( |
| 1201 |
'name' => 'code', |
| 1202 |
'text' => $text, |
| 1203 |
), |
| 1204 |
); |
| 1205 |
} |
| 1206 |
} |
| 1207 |
|
| 1208 |
protected function inlineEmailTag($Excerpt) |
| 1209 |
{ |
| 1210 |
$hostnameLabel = '[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?'; |
| 1211 |
|
| 1212 |
$commonMarkEmail = '[a-zA-Z0-9.!#$%&\'*+\/=?^_`{|}~-]++@' |
| 1213 |
. $hostnameLabel . '(?:\.' . $hostnameLabel . ')*'; |
| 1214 |
|
| 1215 |
if (strpos($Excerpt['text'], '>') !== false |
| 1216 |
and preg_match("/^<((mailto:)?$commonMarkEmail)>/i", $Excerpt['text'], $matches) |
| 1217 |
) { |
| 1218 |
$url = $matches[1]; |
| 1219 |
|
| 1220 |
if (!isset($matches[2])) { |
| 1221 |
$url = "mailto:$url"; |
| 1222 |
} |
| 1223 |
|
| 1224 |
return array( |
| 1225 |
'extent' => strlen($matches[0]), |
| 1226 |
'element' => array( |
| 1227 |
'name' => 'a', |
| 1228 |
'text' => $matches[1], |
| 1229 |
'attributes' => array( |
| 1230 |
'href' => $url, |
| 1231 |
), |
| 1232 |
), |
| 1233 |
); |
| 1234 |
} |
| 1235 |
} |
| 1236 |
|
| 1237 |
protected function inlineEmphasis($Excerpt) |
| 1238 |
{ |
| 1239 |
if (!isset($Excerpt['text'][1])) { |
| 1240 |
return; |
| 1241 |
} |
| 1242 |
|
| 1243 |
$marker = $Excerpt['text'][0]; |
| 1244 |
|
| 1245 |
if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches)) { |
| 1246 |
$emphasis = 'strong'; |
| 1247 |
} elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches)) { |
| 1248 |
$emphasis = 'em'; |
| 1249 |
} else { |
| 1250 |
return; |
| 1251 |
} |
| 1252 |
|
| 1253 |
return array( |
| 1254 |
'extent' => strlen($matches[0]), |
| 1255 |
'element' => array( |
| 1256 |
'name' => $emphasis, |
| 1257 |
'handler' => array( |
| 1258 |
'function' => 'lineElements', |
| 1259 |
'argument' => $matches[1], |
| 1260 |
'destination' => 'elements', |
| 1261 |
), |
| 1262 |
), |
| 1263 |
); |
| 1264 |
} |
| 1265 |
|
| 1266 |
protected function inlineEscapeSequence($Excerpt) |
| 1267 |
{ |
| 1268 |
if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters)) { |
| 1269 |
return array( |
| 1270 |
'element' => array( 'rawHtml' => $Excerpt['text'][1] ), |
| 1271 |
'extent' => 2, |
| 1272 |
); |
| 1273 |
} |
| 1274 |
} |
| 1275 |
|
| 1276 |
protected function inlineImage($Excerpt) |
| 1277 |
{ |
| 1278 |
if (!isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[') { |
| 1279 |
return; |
| 1280 |
} |
| 1281 |
|
| 1282 |
$Excerpt['text'] = substr($Excerpt['text'], 1); |
| 1283 |
|
| 1284 |
$Link = $this->inlineLink($Excerpt); |
| 1285 |
|
| 1286 |
if ($Link === null) { |
| 1287 |
return; |
| 1288 |
} |
| 1289 |
|
| 1290 |
$Inline = array( |
| 1291 |
'extent' => $Link['extent'] + 1, |
| 1292 |
'element' => array( |
| 1293 |
'name' => 'img', |
| 1294 |
'attributes' => array( |
| 1295 |
'src' => $Link['element']['attributes']['href'], |
| 1296 |
'alt' => $Link['element']['handler']['argument'], |
| 1297 |
), |
| 1298 |
'autobreak' => true, |
| 1299 |
), |
| 1300 |
); |
| 1301 |
|
| 1302 |
$Inline['element']['attributes'] += $Link['element']['attributes']; |
| 1303 |
|
| 1304 |
unset($Inline['element']['attributes']['href']); |
| 1305 |
|
| 1306 |
return $Inline; |
| 1307 |
} |
| 1308 |
|
| 1309 |
protected function inlineLink($Excerpt) |
| 1310 |
{ |
| 1311 |
$Element = array( |
| 1312 |
'name' => 'a', |
| 1313 |
'handler' => array( |
| 1314 |
'function' => 'lineElements', |
| 1315 |
'argument' => null, |
| 1316 |
'destination' => 'elements', |
| 1317 |
), |
| 1318 |
'nonNestables' => array( 'Url', 'Link' ), |
| 1319 |
'attributes' => array( |
| 1320 |
'href' => null, |
| 1321 |
'title' => null, |
| 1322 |
), |
| 1323 |
); |
| 1324 |
|
| 1325 |
$extent = 0; |
| 1326 |
|
| 1327 |
$remainder = $Excerpt['text']; |
| 1328 |
|
| 1329 |
if (preg_match('/\[((?:[^][]++|(?R))*+)\]/', $remainder, $matches)) { |
| 1330 |
$Element['handler']['argument'] = $matches[1]; |
| 1331 |
|
| 1332 |
$extent += strlen($matches[0]); |
| 1333 |
|
| 1334 |
$remainder = substr($remainder, $extent); |
| 1335 |
} else { |
| 1336 |
return; |
| 1337 |
} |
| 1338 |
|
| 1339 |
if (preg_match('/^[(]\s*+((?:[^ ()]++|[(][^ )]+[)])++)(?:[ ]+("[^"]*+"|\'[^\']*+\'))?\s*+[)]/', $remainder, $matches)) { |
| 1340 |
$Element['attributes']['href'] = $matches[1]; |
| 1341 |
|
| 1342 |
if (isset($matches[2])) { |
| 1343 |
$Element['attributes']['title'] = substr($matches[2], 1, -1); |
| 1344 |
} |
| 1345 |
|
| 1346 |
$extent += strlen($matches[0]); |
| 1347 |
} else { |
| 1348 |
if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches)) { |
| 1349 |
$definition = strlen($matches[1]) ? $matches[1] : $Element['handler']['argument']; |
| 1350 |
$definition = strtolower($definition); |
| 1351 |
|
| 1352 |
$extent += strlen($matches[0]); |
| 1353 |
} else { |
| 1354 |
$definition = strtolower($Element['handler']['argument']); |
| 1355 |
} |
| 1356 |
|
| 1357 |
if (!isset($this->DefinitionData['Reference'][$definition])) { |
| 1358 |
return; |
| 1359 |
} |
| 1360 |
|
| 1361 |
$Definition = $this->DefinitionData['Reference'][$definition]; |
| 1362 |
|
| 1363 |
$Element['attributes']['href'] = $Definition['url']; |
| 1364 |
$Element['attributes']['title'] = $Definition['title']; |
| 1365 |
} |
| 1366 |
|
| 1367 |
return array( |
| 1368 |
'extent' => $extent, |
| 1369 |
'element' => $Element, |
| 1370 |
); |
| 1371 |
} |
| 1372 |
|
| 1373 |
protected function inlineMarkup($Excerpt) |
| 1374 |
{ |
| 1375 |
if ($this->markupEscaped or $this->safeMode or strpos($Excerpt['text'], '>') === false) { |
| 1376 |
return; |
| 1377 |
} |
| 1378 |
|
| 1379 |
if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w[\w-]*+[ ]*+>/s', $Excerpt['text'], $matches)) { |
| 1380 |
return array( |
| 1381 |
'element' => array( 'rawHtml' => $matches[0] ), |
| 1382 |
'extent' => strlen($matches[0]), |
| 1383 |
); |
| 1384 |
} |
| 1385 |
|
| 1386 |
if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?+[^-])*-->/s', $Excerpt['text'], $matches)) { |
| 1387 |
return array( |
| 1388 |
'element' => array( 'rawHtml' => $matches[0] ), |
| 1389 |
'extent' => strlen($matches[0]), |
| 1390 |
); |
| 1391 |
} |
| 1392 |
|
| 1393 |
if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w[\w-]*+(?:[ ]*+' . $this->regexHtmlAttribute . ')*+[ ]*+\/?>/s', $Excerpt['text'], $matches)) { |
| 1394 |
return array( |
| 1395 |
'element' => array( 'rawHtml' => $matches[0] ), |
| 1396 |
'extent' => strlen($matches[0]), |
| 1397 |
); |
| 1398 |
} |
| 1399 |
} |
| 1400 |
|
| 1401 |
protected function inlineSpecialCharacter($Excerpt) |
| 1402 |
{ |
| 1403 |
if (substr($Excerpt['text'], 1, 1) !== ' ' and strpos($Excerpt['text'], ';') !== false |
| 1404 |
and preg_match('/^&(#?+[0-9a-zA-Z]++);/', $Excerpt['text'], $matches) |
| 1405 |
) { |
| 1406 |
return array( |
| 1407 |
'element' => array( 'rawHtml' => '&' . $matches[1] . ';' ), |
| 1408 |
'extent' => strlen($matches[0]), |
| 1409 |
); |
| 1410 |
} |
| 1411 |
|
| 1412 |
return; |
| 1413 |
} |
| 1414 |
|
| 1415 |
protected function inlineStrikethrough($Excerpt) |
| 1416 |
{ |
| 1417 |
if (!isset($Excerpt['text'][1])) { |
| 1418 |
return; |
| 1419 |
} |
| 1420 |
|
| 1421 |
if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches)) { |
| 1422 |
return array( |
| 1423 |
'extent' => strlen($matches[0]), |
| 1424 |
'element' => array( |
| 1425 |
'name' => 'del', |
| 1426 |
'handler' => array( |
| 1427 |
'function' => 'lineElements', |
| 1428 |
'argument' => $matches[1], |
| 1429 |
'destination' => 'elements', |
| 1430 |
), |
| 1431 |
), |
| 1432 |
); |
| 1433 |
} |
| 1434 |
} |
| 1435 |
|
| 1436 |
protected function inlineUrl($Excerpt) |
| 1437 |
{ |
| 1438 |
if ($this->urlsLinked !== true or !isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/') { |
| 1439 |
return; |
| 1440 |
} |
| 1441 |
|
| 1442 |
if (strpos($Excerpt['context'], 'http') !== false |
| 1443 |
and preg_match('/\bhttps?+:[\/]{2}[^\s<]+\b\/*+/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE) |
| 1444 |
) { |
| 1445 |
$url = $matches[0][0]; |
| 1446 |
|
| 1447 |
$Inline = array( |
| 1448 |
'extent' => strlen($matches[0][0]), |
| 1449 |
'position' => $matches[0][1], |
| 1450 |
'element' => array( |
| 1451 |
'name' => 'a', |
| 1452 |
'text' => $url, |
| 1453 |
'attributes' => array( |
| 1454 |
'href' => $url, |
| 1455 |
), |
| 1456 |
), |
| 1457 |
); |
| 1458 |
|
| 1459 |
return $Inline; |
| 1460 |
} |
| 1461 |
} |
| 1462 |
|
| 1463 |
protected function inlineUrlTag($Excerpt) |
| 1464 |
{ |
| 1465 |
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w++:\/{2}[^ >]++)>/i', $Excerpt['text'], $matches)) { |
| 1466 |
$url = $matches[1]; |
| 1467 |
|
| 1468 |
return array( |
| 1469 |
'extent' => strlen($matches[0]), |
| 1470 |
'element' => array( |
| 1471 |
'name' => 'a', |
| 1472 |
'text' => $url, |
| 1473 |
'attributes' => array( |
| 1474 |
'href' => $url, |
| 1475 |
), |
| 1476 |
), |
| 1477 |
); |
| 1478 |
} |
| 1479 |
} |
| 1480 |
|
| 1481 |
# ~ |
| 1482 |
|
| 1483 |
protected function unmarkedText($text) |
| 1484 |
{ |
| 1485 |
$Inline = $this->inlineText($text); |
| 1486 |
return $this->element($Inline['element']); |
| 1487 |
} |
| 1488 |
|
| 1489 |
# |
| 1490 |
# Handlers |
| 1491 |
# |
| 1492 |
|
| 1493 |
protected function handle(array $Element) |
| 1494 |
{ |
| 1495 |
if (isset($Element['handler'])) { |
| 1496 |
if (!isset($Element['nonNestables'])) { |
| 1497 |
$Element['nonNestables'] = array(); |
| 1498 |
} |
| 1499 |
|
| 1500 |
if (is_string($Element['handler'])) { |
| 1501 |
$function = $Element['handler']; |
| 1502 |
$argument = $Element['text']; |
| 1503 |
unset($Element['text']); |
| 1504 |
$destination = 'rawHtml'; |
| 1505 |
} else { |
| 1506 |
$function = $Element['handler']['function']; |
| 1507 |
$argument = $Element['handler']['argument']; |
| 1508 |
$destination = $Element['handler']['destination']; |
| 1509 |
} |
| 1510 |
|
| 1511 |
$Element[$destination] = $this->{$function}($argument, $Element['nonNestables']); |
| 1512 |
|
| 1513 |
if ($destination === 'handler') { |
| 1514 |
$Element = $this->handle($Element); |
| 1515 |
} |
| 1516 |
|
| 1517 |
unset($Element['handler']); |
| 1518 |
} |
| 1519 |
|
| 1520 |
return $Element; |
| 1521 |
} |
| 1522 |
|
| 1523 |
protected function handleElementRecursive(array $Element) |
| 1524 |
{ |
| 1525 |
return $this->elementApplyRecursive(array( $this, 'handle' ), $Element); |
| 1526 |
} |
| 1527 |
|
| 1528 |
protected function handleElementsRecursive(array $Elements) |
| 1529 |
{ |
| 1530 |
return $this->elementsApplyRecursive(array( $this, 'handle' ), $Elements); |
| 1531 |
} |
| 1532 |
|
| 1533 |
protected function elementApplyRecursive($closure, array $Element) |
| 1534 |
{ |
| 1535 |
$Element = call_user_func($closure, $Element); |
| 1536 |
|
| 1537 |
if (isset($Element['elements'])) { |
| 1538 |
$Element['elements'] = $this->elementsApplyRecursive($closure, $Element['elements']); |
| 1539 |
} elseif (isset($Element['element'])) { |
| 1540 |
$Element['element'] = $this->elementApplyRecursive($closure, $Element['element']); |
| 1541 |
} |
| 1542 |
|
| 1543 |
return $Element; |
| 1544 |
} |
| 1545 |
|
| 1546 |
protected function elementApplyRecursiveDepthFirst($closure, array $Element) |
| 1547 |
{ |
| 1548 |
if (isset($Element['elements'])) { |
| 1549 |
$Element['elements'] = $this->elementsApplyRecursiveDepthFirst($closure, $Element['elements']); |
| 1550 |
} elseif (isset($Element['element'])) { |
| 1551 |
$Element['element'] = $this->elementsApplyRecursiveDepthFirst($closure, $Element['element']); |
| 1552 |
} |
| 1553 |
|
| 1554 |
$Element = call_user_func($closure, $Element); |
| 1555 |
|
| 1556 |
return $Element; |
| 1557 |
} |
| 1558 |
|
| 1559 |
protected function elementsApplyRecursive($closure, array $Elements) |
| 1560 |
{ |
| 1561 |
foreach ($Elements as &$Element) { |
| 1562 |
$Element = $this->elementApplyRecursive($closure, $Element); |
| 1563 |
} |
| 1564 |
|
| 1565 |
return $Elements; |
| 1566 |
} |
| 1567 |
|
| 1568 |
protected function elementsApplyRecursiveDepthFirst($closure, array $Elements) |
| 1569 |
{ |
| 1570 |
foreach ($Elements as &$Element) { |
| 1571 |
$Element = $this->elementApplyRecursiveDepthFirst($closure, $Element); |
| 1572 |
} |
| 1573 |
|
| 1574 |
return $Elements; |
| 1575 |
} |
| 1576 |
|
| 1577 |
protected function element(array $Element) |
| 1578 |
{ |
| 1579 |
if ($this->safeMode) { |
| 1580 |
$Element = $this->sanitiseElement($Element); |
| 1581 |
} |
| 1582 |
|
| 1583 |
# identity map if element has no handler |
| 1584 |
$Element = $this->handle($Element); |
| 1585 |
|
| 1586 |
$hasName = isset($Element['name']); |
| 1587 |
|
| 1588 |
$markup = ''; |
| 1589 |
|
| 1590 |
if ($hasName) { |
| 1591 |
$markup .= '<' . $Element['name']; |
| 1592 |
|
| 1593 |
if (isset($Element['attributes'])) { |
| 1594 |
foreach ($Element['attributes'] as $name => $value) { |
| 1595 |
if ($value === null) { |
| 1596 |
continue; |
| 1597 |
} |
| 1598 |
|
| 1599 |
$markup .= " $name=\"" . self::escape($value) . '"'; |
| 1600 |
} |
| 1601 |
} |
| 1602 |
} |
| 1603 |
|
| 1604 |
$permitRawHtml = false; |
| 1605 |
|
| 1606 |
if (isset($Element['text'])) { |
| 1607 |
$text = $Element['text']; |
| 1608 |
} |
| 1609 |
// very strongly consider an alternative if you're writing an |
| 1610 |
// extension |
| 1611 |
elseif (isset($Element['rawHtml'])) { |
| 1612 |
$text = $Element['rawHtml']; |
| 1613 |
|
| 1614 |
$allowRawHtmlInSafeMode = isset($Element['allowRawHtmlInSafeMode']) && $Element['allowRawHtmlInSafeMode']; |
| 1615 |
$permitRawHtml = !$this->safeMode || $allowRawHtmlInSafeMode; |
| 1616 |
} |
| 1617 |
|
| 1618 |
$hasContent = isset($text) || isset($Element['element']) || isset($Element['elements']); |
| 1619 |
|
| 1620 |
if ($hasContent) { |
| 1621 |
$markup .= $hasName ? '>' : ''; |
| 1622 |
|
| 1623 |
if (isset($Element['elements'])) { |
| 1624 |
$markup .= $this->elements($Element['elements']); |
| 1625 |
} elseif (isset($Element['element'])) { |
| 1626 |
$markup .= $this->element($Element['element']); |
| 1627 |
} elseif (!$permitRawHtml) { |
| 1628 |
$markup .= self::escape($text ?? '', true); |
| 1629 |
} else { |
| 1630 |
$markup .= $text ?? ''; |
| 1631 |
} |
| 1632 |
|
| 1633 |
$markup .= $hasName ? '</' . $Element['name'] . '>' : ''; |
| 1634 |
} elseif ($hasName) { |
| 1635 |
$markup .= ' />'; |
| 1636 |
} |
| 1637 |
|
| 1638 |
return $markup; |
| 1639 |
} |
| 1640 |
|
| 1641 |
protected function elements(array $Elements) |
| 1642 |
{ |
| 1643 |
$markup = ''; |
| 1644 |
|
| 1645 |
$autoBreak = true; |
| 1646 |
|
| 1647 |
foreach ($Elements as $Element) { |
| 1648 |
if (empty($Element)) { |
| 1649 |
continue; |
| 1650 |
} |
| 1651 |
|
| 1652 |
$autoBreakNext = (isset($Element['autobreak']) |
| 1653 |
? $Element['autobreak'] : isset($Element['name']) |
| 1654 |
); |
| 1655 |
// (autobreak === false) covers both sides of an element |
| 1656 |
$autoBreak = !$autoBreak ? $autoBreak : $autoBreakNext; |
| 1657 |
|
| 1658 |
$markup .= ($autoBreak ? "\n" : '') . $this->element($Element); |
| 1659 |
$autoBreak = $autoBreakNext; |
| 1660 |
} |
| 1661 |
|
| 1662 |
$markup .= $autoBreak ? "\n" : ''; |
| 1663 |
|
| 1664 |
return $markup; |
| 1665 |
} |
| 1666 |
|
| 1667 |
# ~ |
| 1668 |
|
| 1669 |
protected function li($lines) |
| 1670 |
{ |
| 1671 |
$Elements = $this->linesElements($lines); |
| 1672 |
|
| 1673 |
if (!in_array('', $lines) |
| 1674 |
and isset($Elements[0]) and isset($Elements[0]['name']) |
| 1675 |
and $Elements[0]['name'] === 'p' |
| 1676 |
) { |
| 1677 |
unset($Elements[0]['name']); |
| 1678 |
} |
| 1679 |
|
| 1680 |
return $Elements; |
| 1681 |
} |
| 1682 |
|
| 1683 |
# |
| 1684 |
# AST Convenience |
| 1685 |
# |
| 1686 |
|
| 1687 |
/** |
| 1688 |
* Replace occurrences $regexp with $Elements in $text. Return an array of |
| 1689 |
* elements representing the replacement. |
| 1690 |
*/ |
| 1691 |
protected static function pregReplaceElements($regexp, $Elements, $text) |
| 1692 |
{ |
| 1693 |
$newElements = array(); |
| 1694 |
|
| 1695 |
while (preg_match($regexp, $text, $matches, PREG_OFFSET_CAPTURE)) { |
| 1696 |
$offset = $matches[0][1]; |
| 1697 |
$before = substr($text, 0, $offset); |
| 1698 |
$after = substr($text, $offset + strlen($matches[0][0])); |
| 1699 |
|
| 1700 |
$newElements[] = array( 'text' => $before ); |
| 1701 |
|
| 1702 |
foreach ($Elements as $Element) { |
| 1703 |
$newElements[] = $Element; |
| 1704 |
} |
| 1705 |
|
| 1706 |
$text = $after; |
| 1707 |
} |
| 1708 |
|
| 1709 |
$newElements[] = array( 'text' => $text ); |
| 1710 |
|
| 1711 |
return $newElements; |
| 1712 |
} |
| 1713 |
|
| 1714 |
# |
| 1715 |
# Deprecated Methods |
| 1716 |
# |
| 1717 |
|
| 1718 |
function parse($text) |
| 1719 |
{ |
| 1720 |
$markup = $this->text($text); |
| 1721 |
|
| 1722 |
return $markup; |
| 1723 |
} |
| 1724 |
|
| 1725 |
protected function sanitiseElement(array $Element) |
| 1726 |
{ |
| 1727 |
static $goodAttribute = '/^[a-zA-Z0-9][a-zA-Z0-9-_]*+$/'; |
| 1728 |
static $safeUrlNameToAtt = array( |
| 1729 |
'a' => 'href', |
| 1730 |
'img' => 'src', |
| 1731 |
); |
| 1732 |
|
| 1733 |
if (!isset($Element['name'])) { |
| 1734 |
unset($Element['attributes']); |
| 1735 |
return $Element; |
| 1736 |
} |
| 1737 |
|
| 1738 |
if (isset($safeUrlNameToAtt[$Element['name']])) { |
| 1739 |
$Element = $this->filterUnsafeUrlInAttribute($Element, $safeUrlNameToAtt[$Element['name']]); |
| 1740 |
} |
| 1741 |
|
| 1742 |
if (!empty($Element['attributes'])) { |
| 1743 |
foreach ($Element['attributes'] as $att => $val) { |
| 1744 |
# filter out badly parsed attribute |
| 1745 |
if (!preg_match($goodAttribute, $att)) { |
| 1746 |
unset($Element['attributes'][$att]); |
| 1747 |
} # dump onevent attribute |
| 1748 |
elseif (self::striAtStart($att, 'on')) { |
| 1749 |
unset($Element['attributes'][$att]); |
| 1750 |
} |
| 1751 |
} |
| 1752 |
} |
| 1753 |
|
| 1754 |
return $Element; |
| 1755 |
} |
| 1756 |
|
| 1757 |
protected function filterUnsafeUrlInAttribute(array $Element, $attribute) |
| 1758 |
{ |
| 1759 |
foreach ($this->safeLinksWhitelist as $scheme) { |
| 1760 |
if (self::striAtStart($Element['attributes'][$attribute], $scheme)) { |
| 1761 |
return $Element; |
| 1762 |
} |
| 1763 |
} |
| 1764 |
|
| 1765 |
$Element['attributes'][$attribute] = str_replace(':', '%3A', $Element['attributes'][$attribute]); |
| 1766 |
|
| 1767 |
return $Element; |
| 1768 |
} |
| 1769 |
|
| 1770 |
# |
| 1771 |
# Static Methods |
| 1772 |
# |
| 1773 |
|
| 1774 |
protected static function escape($text, $allowQuotes = false) |
| 1775 |
{ |
| 1776 |
return htmlspecialchars($text, $allowQuotes ? ENT_NOQUOTES : ENT_QUOTES, 'UTF-8'); |
| 1777 |
} |
| 1778 |
|
| 1779 |
protected static function striAtStart($string, $needle) |
| 1780 |
{ |
| 1781 |
$len = strlen($needle); |
| 1782 |
|
| 1783 |
if ($len > strlen($string)) { |
| 1784 |
return false; |
| 1785 |
} else { |
| 1786 |
return strtolower(substr($string, 0, $len)) === strtolower($needle); |
| 1787 |
} |
| 1788 |
} |
| 1789 |
|
| 1790 |
static function instance($name = 'default') |
| 1791 |
{ |
| 1792 |
if (isset(self::$instances[$name])) { |
| 1793 |
return self::$instances[$name]; |
| 1794 |
} |
| 1795 |
|
| 1796 |
$instance = new static(); |
| 1797 |
|
| 1798 |
self::$instances[$name] = $instance; |
| 1799 |
|
| 1800 |
return $instance; |
| 1801 |
} |
| 1802 |
|
| 1803 |
private static $instances = array(); |
| 1804 |
|
| 1805 |
# |
| 1806 |
# Fields |
| 1807 |
# |
| 1808 |
|
| 1809 |
protected $DefinitionData; |
| 1810 |
|
| 1811 |
# |
| 1812 |
# Read-Only |
| 1813 |
|
| 1814 |
protected $specialCharacters = array( |
| 1815 |
'\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|', '~', |
| 1816 |
); |
| 1817 |
|
| 1818 |
protected $StrongRegex = array( |
| 1819 |
'*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*+[*])+?)[*]{2}(?![*])/s', |
| 1820 |
'_' => '/^__((?:\\\\_|[^_]|_[^_]*+_)+?)__(?!_)/us', |
| 1821 |
); |
| 1822 |
|
| 1823 |
protected $EmRegex = array( |
| 1824 |
'*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s', |
| 1825 |
'_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us', |
| 1826 |
); |
| 1827 |
|
| 1828 |
protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*+(?:\s*+=\s*+(?:[^"\'=<>`\s]+|"[^"]*+"|\'[^\']*+\'))?+'; |
| 1829 |
|
| 1830 |
protected $voidElements = array( |
| 1831 |
'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source', |
| 1832 |
); |
| 1833 |
|
| 1834 |
protected $textLevelElements = array( |
| 1835 |
'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont', |
| 1836 |
'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing', |
| 1837 |
'i', 'rp', 'del', 'code', 'strike', 'marquee', |
| 1838 |
'q', 'rt', 'ins', 'font', 'strong', |
| 1839 |
's', 'tt', 'kbd', 'mark', |
| 1840 |
'u', 'xm', 'sub', 'nobr', |
| 1841 |
'sup', 'ruby', |
| 1842 |
'var', 'span', |
| 1843 |
'wbr', 'time', |
| 1844 |
); |
| 1845 |
} |
| 1846 |
|
