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<?php |
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/** |
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* Copyright (c) 2018 Justin Kuenzel (jukusoft.com) |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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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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class Parsedown |
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{ |
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# ~ |
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const version = '1.7.1'; |
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# ~ |
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function text($text) |
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{ |
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# make sure no definitions are set |
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$this->DefinitionData = array(); |
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# standardize line breaks |
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$text = str_replace(array("\r\n", "\r"), "\n", $text); |
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# remove surrounding line breaks |
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$text = trim($text, "\n"); |
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# split text into lines |
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$lines = explode("\n", $text); |
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# iterate through lines to identify blocks |
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$markup = $this->lines($lines); |
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# trim line breaks |
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$markup = trim($markup, "\n"); |
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return $markup; |
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} |
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# |
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# Setters |
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# |
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function setBreaksEnabled(bool $breaksEnabled) |
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{ |
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$this->breaksEnabled = $breaksEnabled; |
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return $this; |
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} |
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protected $breaksEnabled; |
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function setMarkupEscaped(bool $markupEscaped) |
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{ |
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$this->markupEscaped = $markupEscaped; |
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return $this; |
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} |
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protected $markupEscaped; |
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function setUrlsLinked(bool $urlsLinked) |
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{ |
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$this->urlsLinked = $urlsLinked; |
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return $this; |
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} |
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protected $urlsLinked = true; |
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function setSafeMode(bool $safeMode) |
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{ |
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$this->safeMode = (bool) $safeMode; |
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return $this; |
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} |
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protected $safeMode; |
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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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'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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# Lines |
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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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protected $unmarkedBlockTypes = array( |
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'Code', |
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); |
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# |
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# Blocks |
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# |
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protected function lines(array $lines) |
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{ |
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$CurrentBlock = null; |
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foreach ($lines as $line) |
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{ |
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if (chop($line) === '') |
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{ |
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if (isset($CurrentBlock)) |
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{ |
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$CurrentBlock['interrupted'] = true; |
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} |
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continue; |
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} |
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if (strpos($line, "\t") !== false) |
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{ |
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$parts = explode("\t", $line); |
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$line = $parts[0]; |
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unset($parts[0]); |
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foreach ($parts as $part) |
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{ |
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$shortage = 4 - mb_strlen($line, 'utf-8') % 4; |
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$line .= str_repeat(' ', $shortage); |
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$line .= $part; |
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} |
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} |
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$indent = 0; |
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while (isset($line[$indent]) and $line[$indent] === ' ') |
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{ |
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$indent ++; |
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} |
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$text = $indent > 0 ? substr($line, $indent) : $line; |
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# ~ |
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$Line = array('body' => $line, 'indent' => $indent, 'text' => $text); |
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# ~ |
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if (isset($CurrentBlock['continuable'])) |
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{ |
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$Block = $this->{'block'.$CurrentBlock['type'].'Continue'}($Line, $CurrentBlock); |
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if (isset($Block)) |
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{ |
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$CurrentBlock = $Block; |
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continue; |
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} |
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else |
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{ |
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if ($this->isBlockCompletable($CurrentBlock['type'])) |
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{ |
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$CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock); |
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} |
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} |
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} |
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# ~ |
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$marker = $text[0]; |
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# ~ |
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$blockTypes = $this->unmarkedBlockTypes; |
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if (isset($this->BlockTypes[$marker])) |
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{ |
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foreach ($this->BlockTypes[$marker] as $blockType) |
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{ |
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$blockTypes []= $blockType; |
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} |
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} |
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# |
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# ~ |
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foreach ($blockTypes as $blockType) |
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{ |
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$Block = $this->{'block'.$blockType}($Line, $CurrentBlock); |
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if (isset($Block)) |
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{ |
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$Block['type'] = $blockType; |
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if ( ! isset($Block['identified'])) |
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{ |
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$Blocks []= $CurrentBlock; |
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$Block['identified'] = true; |
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} |
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if ($this->isBlockContinuable($blockType)) |
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{ |
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$Block['continuable'] = true; |
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} |
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$CurrentBlock = $Block; |
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continue 2; |
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} |
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} |
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# ~ |
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if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted'])) |
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{ |
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$CurrentBlock['element']['text'] .= "\n".$text; |
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} |
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else |
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{ |
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$Blocks []= $CurrentBlock; |
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$CurrentBlock = $this->paragraph($Line); |
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$CurrentBlock['identified'] = true; |
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} |
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} |
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# ~ |
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if (isset($CurrentBlock['continuable']) and $this->isBlockCompletable($CurrentBlock['type'])) |
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{ |
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$CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock); |
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} |
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# ~ |
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$Blocks []= $CurrentBlock; |
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unset($Blocks[0]); |
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# ~ |
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$markup = ''; |
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foreach ($Blocks as $Block) |
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{ |
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if (isset($Block['hidden'])) |
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{ |
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continue; |
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} |
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$markup .= "\n"; |
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$markup .= isset($Block['markup']) ? $Block['markup'] : $this->element($Block['element']); |
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} |
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$markup .= "\n"; |
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# ~ |
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return $markup; |
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} |
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protected function isBlockContinuable($Type) |
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{ |
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return method_exists($this, 'block'.$Type.'Continue'); |
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} |
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protected function isBlockCompletable($Type) |
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{ |
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return method_exists($this, 'block'.$Type.'Complete'); |
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} |
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# |
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# Code |
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protected function blockCode($Line, $Block = null) |
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{ |
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if (isset($Block) and ! isset($Block['type']) and ! isset($Block['interrupted'])) |
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{ |
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return; |
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} |
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if ($Line['indent'] >= 4) |
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{ |
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$text = substr($Line['body'], 4); |
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$Block = array( |
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'element' => array( |
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'name' => 'pre', |
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'handler' => 'element', |
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'text' => 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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return $Block; |
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} |
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} |
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protected function blockCodeContinue($Line, $Block) |
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{ |
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if ($Line['indent'] >= 4) |
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{ |
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if (isset($Block['interrupted'])) |
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{ |
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$Block['element']['text']['text'] .= "\n"; |
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unset($Block['interrupted']); |
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} |
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$Block['element']['text']['text'] .= "\n"; |
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$text = substr($Line['body'], 4); |
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$Block['element']['text']['text'] .= $text; |
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return $Block; |
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} |
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} |
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protected function blockCodeComplete($Block) |
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{ |
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$text = $Block['element']['text']['text']; |
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$Block['element']['text']['text'] = $text; |
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return $Block; |
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} |
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391
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# |
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# Comment |
393
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394
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protected function blockComment($Line) |
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{ |
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if ($this->markupEscaped or $this->safeMode) |
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{ |
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return; |
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} |
400
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|
401
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if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!') |
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{ |
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$Block = array( |
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'markup' => $Line['body'], |
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); |
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407
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if (preg_match('/-->$/', $Line['text'])) |
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{ |
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$Block['closed'] = true; |
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} |
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return $Block; |
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} |
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|
|
|
} |
415
|
|
|
|
416
|
|
|
protected function blockCommentContinue($Line, array $Block) |
417
|
|
|
{ |
418
|
|
|
if (isset($Block['closed'])) |
419
|
|
|
{ |
420
|
|
|
return; |
421
|
|
|
} |
422
|
|
|
|
423
|
|
|
$Block['markup'] .= "\n" . $Line['body']; |
424
|
|
|
|
425
|
|
|
if (preg_match('/-->$/', $Line['text'])) |
426
|
|
|
{ |
427
|
|
|
$Block['closed'] = true; |
428
|
|
|
} |
429
|
|
|
|
430
|
|
|
return $Block; |
431
|
|
|
} |
432
|
|
|
|
433
|
|
|
# |
434
|
|
|
# Fenced Code |
435
|
|
|
|
436
|
|
|
protected function blockFencedCode($Line) |
437
|
|
|
{ |
438
|
|
|
if (preg_match('/^['.$Line['text'][0].']{3,}[ ]*([^`]+)?[ ]*$/', $Line['text'], $matches)) |
439
|
|
|
{ |
440
|
|
|
$Element = array( |
441
|
|
|
'name' => 'code', |
442
|
|
|
'text' => '', |
443
|
|
|
); |
444
|
|
|
|
445
|
|
|
if (isset($matches[1])) |
446
|
|
|
{ |
447
|
|
|
$class = 'language-'.$matches[1]; |
448
|
|
|
|
449
|
|
|
$Element['attributes'] = array( |
450
|
|
|
'class' => $class, |
451
|
|
|
); |
452
|
|
|
} |
453
|
|
|
|
454
|
|
|
$Block = array( |
455
|
|
|
'char' => $Line['text'][0], |
456
|
|
|
'element' => array( |
457
|
|
|
'name' => 'pre', |
458
|
|
|
'handler' => 'element', |
459
|
|
|
'text' => $Element, |
460
|
|
|
), |
461
|
|
|
); |
462
|
|
|
|
463
|
|
|
return $Block; |
464
|
|
|
} |
465
|
|
|
} |
466
|
|
|
|
467
|
|
|
protected function blockFencedCodeContinue($Line, $Block) |
468
|
|
|
{ |
469
|
|
|
if (isset($Block['complete'])) |
470
|
|
|
{ |
471
|
|
|
return; |
472
|
|
|
} |
473
|
|
|
|
474
|
|
|
if (isset($Block['interrupted'])) |
475
|
|
|
{ |
476
|
|
|
$Block['element']['text']['text'] .= "\n"; |
477
|
|
|
|
478
|
|
|
unset($Block['interrupted']); |
479
|
|
|
} |
480
|
|
|
|
481
|
|
|
if (preg_match('/^'.$Block['char'].'{3,}[ ]*$/', $Line['text'])) |
482
|
|
|
{ |
483
|
|
|
$Block['element']['text']['text'] = substr($Block['element']['text']['text'], 1); |
484
|
|
|
|
485
|
|
|
$Block['complete'] = true; |
486
|
|
|
|
487
|
|
|
return $Block; |
488
|
|
|
} |
489
|
|
|
|
490
|
|
|
$Block['element']['text']['text'] .= "\n".$Line['body']; |
491
|
|
|
|
492
|
|
|
return $Block; |
493
|
|
|
} |
494
|
|
|
|
495
|
|
|
protected function blockFencedCodeComplete($Block) |
496
|
|
|
{ |
497
|
|
|
$text = $Block['element']['text']['text']; |
498
|
|
|
|
499
|
|
|
$Block['element']['text']['text'] = $text; |
500
|
|
|
|
501
|
|
|
return $Block; |
502
|
|
|
} |
503
|
|
|
|
504
|
|
|
# |
505
|
|
|
# Header |
506
|
|
|
|
507
|
|
|
protected function blockHeader($Line) |
508
|
|
|
{ |
509
|
|
|
if (isset($Line['text'][1])) |
510
|
|
|
{ |
511
|
|
|
$level = 1; |
512
|
|
|
|
513
|
|
|
while (isset($Line['text'][$level]) and $Line['text'][$level] === '#') |
514
|
|
|
{ |
515
|
|
|
$level ++; |
516
|
|
|
} |
517
|
|
|
|
518
|
|
|
if ($level > 6) |
519
|
|
|
{ |
520
|
|
|
return; |
521
|
|
|
} |
522
|
|
|
|
523
|
|
|
$text = trim($Line['text'], '# '); |
524
|
|
|
|
525
|
|
|
$Block = array( |
526
|
|
|
'element' => array( |
527
|
|
|
'name' => 'h' . min(6, $level), |
528
|
|
|
'text' => $text, |
529
|
|
|
'handler' => 'line', |
530
|
|
|
), |
531
|
|
|
); |
532
|
|
|
|
533
|
|
|
return $Block; |
534
|
|
|
} |
535
|
|
|
} |
536
|
|
|
|
537
|
|
|
# |
538
|
|
|
# List |
539
|
|
|
|
540
|
|
|
protected function blockList($Line) |
541
|
|
|
{ |
542
|
|
|
list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]+[.]'); |
543
|
|
|
|
544
|
|
|
if (preg_match('/^('.$pattern.'[ ]+)(.*)/', $Line['text'], $matches)) |
545
|
|
|
{ |
546
|
|
|
$Block = array( |
547
|
|
|
'indent' => $Line['indent'], |
548
|
|
|
'pattern' => $pattern, |
549
|
|
|
'element' => array( |
550
|
|
|
'name' => $name, |
551
|
|
|
'handler' => 'elements', |
552
|
|
|
), |
553
|
|
|
); |
554
|
|
|
|
555
|
|
|
if($name === 'ol') |
556
|
|
|
{ |
557
|
|
|
$listStart = stristr($matches[0], '.', true); |
558
|
|
|
|
559
|
|
|
if($listStart !== '1') |
560
|
|
|
{ |
561
|
|
|
$Block['element']['attributes'] = array('start' => $listStart); |
562
|
|
|
} |
563
|
|
|
} |
564
|
|
|
|
565
|
|
|
$Block['li'] = array( |
566
|
|
|
'name' => 'li', |
567
|
|
|
'handler' => 'li', |
568
|
|
|
'text' => array( |
569
|
|
|
$matches[2], |
570
|
|
|
), |
571
|
|
|
); |
572
|
|
|
|
573
|
|
|
$Block['element']['text'] []= & $Block['li']; |
574
|
|
|
|
575
|
|
|
return $Block; |
576
|
|
|
} |
577
|
|
|
} |
578
|
|
|
|
579
|
|
|
protected function blockListContinue($Line, array $Block) |
580
|
|
|
{ |
581
|
|
|
if ($Block['indent'] === $Line['indent'] and preg_match('/^'.$Block['pattern'].'(?:[ ]+(.*)|$)/', $Line['text'], $matches)) |
582
|
|
|
{ |
583
|
|
|
if (isset($Block['interrupted'])) |
584
|
|
|
{ |
585
|
|
|
$Block['li']['text'] []= ''; |
586
|
|
|
|
587
|
|
|
$Block['loose'] = true; |
588
|
|
|
|
589
|
|
|
unset($Block['interrupted']); |
590
|
|
|
} |
591
|
|
|
|
592
|
|
|
unset($Block['li']); |
593
|
|
|
|
594
|
|
|
$text = isset($matches[1]) ? $matches[1] : ''; |
595
|
|
|
|
596
|
|
|
$Block['li'] = array( |
597
|
|
|
'name' => 'li', |
598
|
|
|
'handler' => 'li', |
599
|
|
|
'text' => array( |
600
|
|
|
$text, |
601
|
|
|
), |
602
|
|
|
); |
603
|
|
|
|
604
|
|
|
$Block['element']['text'] []= & $Block['li']; |
605
|
|
|
|
606
|
|
|
return $Block; |
607
|
|
|
} |
608
|
|
|
|
609
|
|
|
if ($Line['text'][0] === '[' and $this->blockReference($Line)) |
610
|
|
|
{ |
611
|
|
|
return $Block; |
612
|
|
|
} |
613
|
|
|
|
614
|
|
|
if ( ! isset($Block['interrupted'])) |
615
|
|
|
{ |
616
|
|
|
$text = preg_replace('/^[ ]{0,4}/', '', $Line['body']); |
617
|
|
|
|
618
|
|
|
$Block['li']['text'] []= $text; |
619
|
|
|
|
620
|
|
|
return $Block; |
621
|
|
|
} |
622
|
|
|
|
623
|
|
|
if ($Line['indent'] > 0) |
624
|
|
|
{ |
625
|
|
|
$Block['li']['text'] []= ''; |
626
|
|
|
|
627
|
|
|
$text = preg_replace('/^[ ]{0,4}/', '', $Line['body']); |
628
|
|
|
|
629
|
|
|
$Block['li']['text'] []= $text; |
630
|
|
|
|
631
|
|
|
unset($Block['interrupted']); |
632
|
|
|
|
633
|
|
|
return $Block; |
634
|
|
|
} |
635
|
|
|
} |
636
|
|
|
|
637
|
|
|
protected function blockListComplete(array $Block) |
638
|
|
|
{ |
639
|
|
|
if (isset($Block['loose'])) |
640
|
|
|
{ |
641
|
|
|
foreach ($Block['element']['text'] as &$li) |
642
|
|
|
{ |
643
|
|
|
if (end($li['text']) !== '') |
644
|
|
|
{ |
645
|
|
|
$li['text'] []= ''; |
646
|
|
|
} |
647
|
|
|
} |
648
|
|
|
} |
649
|
|
|
|
650
|
|
|
return $Block; |
651
|
|
|
} |
652
|
|
|
|
653
|
|
|
# |
654
|
|
|
# Quote |
655
|
|
|
|
656
|
|
|
protected function blockQuote($Line) |
657
|
|
|
{ |
658
|
|
|
if (preg_match('/^>[ ]?(.*)/', $Line['text'], $matches)) |
659
|
|
|
{ |
660
|
|
|
$Block = array( |
661
|
|
|
'element' => array( |
662
|
|
|
'name' => 'blockquote', |
663
|
|
|
'handler' => 'lines', |
664
|
|
|
'text' => (array) $matches[1], |
665
|
|
|
), |
666
|
|
|
); |
667
|
|
|
|
668
|
|
|
return $Block; |
669
|
|
|
} |
670
|
|
|
} |
671
|
|
|
|
672
|
|
|
protected function blockQuoteContinue($Line, array $Block) |
673
|
|
|
{ |
674
|
|
|
if ($Line['text'][0] === '>' and preg_match('/^>[ ]?(.*)/', $Line['text'], $matches)) |
675
|
|
|
{ |
676
|
|
|
if (isset($Block['interrupted'])) |
677
|
|
|
{ |
678
|
|
|
$Block['element']['text'] []= ''; |
679
|
|
|
|
680
|
|
|
unset($Block['interrupted']); |
681
|
|
|
} |
682
|
|
|
|
683
|
|
|
$Block['element']['text'] []= $matches[1]; |
684
|
|
|
|
685
|
|
|
return $Block; |
686
|
|
|
} |
687
|
|
|
|
688
|
|
|
if ( ! isset($Block['interrupted'])) |
689
|
|
|
{ |
690
|
|
|
$Block['element']['text'] []= $Line['text']; |
691
|
|
|
|
692
|
|
|
return $Block; |
693
|
|
|
} |
694
|
|
|
} |
695
|
|
|
|
696
|
|
|
# |
697
|
|
|
# Rule |
698
|
|
|
|
699
|
|
|
protected function blockRule($Line) |
700
|
|
|
{ |
701
|
|
|
if (preg_match('/^(['.$Line['text'][0].'])([ ]*\1){2,}[ ]*$/', $Line['text'])) |
702
|
|
|
{ |
703
|
|
|
$Block = array( |
704
|
|
|
'element' => array( |
705
|
|
|
'name' => 'hr' |
706
|
|
|
), |
707
|
|
|
); |
708
|
|
|
|
709
|
|
|
return $Block; |
710
|
|
|
} |
711
|
|
|
} |
712
|
|
|
|
713
|
|
|
# |
714
|
|
|
# Setext |
715
|
|
|
|
716
|
|
|
protected function blockSetextHeader($Line, array $Block = null) |
717
|
|
|
{ |
718
|
|
|
if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted'])) |
719
|
|
|
{ |
720
|
|
|
return; |
721
|
|
|
} |
722
|
|
|
|
723
|
|
|
if (chop($Line['text'], $Line['text'][0]) === '') |
724
|
|
|
{ |
725
|
|
|
$Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2'; |
726
|
|
|
|
727
|
|
|
return $Block; |
728
|
|
|
} |
729
|
|
|
} |
730
|
|
|
|
731
|
|
|
# |
732
|
|
|
# Markup |
733
|
|
|
|
734
|
|
|
protected function blockMarkup($Line) |
735
|
|
|
{ |
736
|
|
|
if ($this->markupEscaped or $this->safeMode) |
737
|
|
|
{ |
738
|
|
|
return; |
739
|
|
|
} |
740
|
|
|
|
741
|
|
|
if (preg_match('/^<(\w[\w-]*)(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*(\/)?>/', $Line['text'], $matches)) |
742
|
|
|
{ |
743
|
|
|
$element = strtolower($matches[1]); |
744
|
|
|
|
745
|
|
|
if (in_array($element, $this->textLevelElements)) |
746
|
|
|
{ |
747
|
|
|
return; |
748
|
|
|
} |
749
|
|
|
|
750
|
|
|
$Block = array( |
751
|
|
|
'name' => $matches[1], |
752
|
|
|
'depth' => 0, |
753
|
|
|
'markup' => $Line['text'], |
754
|
|
|
); |
755
|
|
|
|
756
|
|
|
$length = strlen($matches[0]); |
757
|
|
|
|
758
|
|
|
$remainder = substr($Line['text'], $length); |
759
|
|
|
|
760
|
|
|
if (trim($remainder) === '') |
761
|
|
|
{ |
762
|
|
|
if (isset($matches[2]) or in_array($matches[1], $this->voidElements)) |
763
|
|
|
{ |
764
|
|
|
$Block['closed'] = true; |
765
|
|
|
|
766
|
|
|
$Block['void'] = true; |
767
|
|
|
} |
768
|
|
|
} |
769
|
|
|
else |
770
|
|
|
{ |
771
|
|
|
if (isset($matches[2]) or in_array($matches[1], $this->voidElements)) |
772
|
|
|
{ |
773
|
|
|
return; |
774
|
|
|
} |
775
|
|
|
|
776
|
|
|
if (preg_match('/<\/'.$matches[1].'>[ ]*$/i', $remainder)) |
777
|
|
|
{ |
778
|
|
|
$Block['closed'] = true; |
779
|
|
|
} |
780
|
|
|
} |
781
|
|
|
|
782
|
|
|
return $Block; |
783
|
|
|
} |
784
|
|
|
} |
785
|
|
|
|
786
|
|
|
protected function blockMarkupContinue($Line, array $Block) |
787
|
|
|
{ |
788
|
|
|
if (isset($Block['closed'])) |
789
|
|
|
{ |
790
|
|
|
return; |
791
|
|
|
} |
792
|
|
|
|
793
|
|
|
if (preg_match('/^<'.$Block['name'].'(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*>/i', $Line['text'])) # open |
794
|
|
|
{ |
795
|
|
|
$Block['depth'] ++; |
796
|
|
|
} |
797
|
|
|
|
798
|
|
|
if (preg_match('/(.*?)<\/'.$Block['name'].'>[ ]*$/i', $Line['text'], $matches)) # close |
799
|
|
|
{ |
800
|
|
|
if ($Block['depth'] > 0) |
801
|
|
|
{ |
802
|
|
|
$Block['depth'] --; |
803
|
|
|
} |
804
|
|
|
else |
805
|
|
|
{ |
806
|
|
|
$Block['closed'] = true; |
807
|
|
|
} |
808
|
|
|
} |
809
|
|
|
|
810
|
|
|
if (isset($Block['interrupted'])) |
811
|
|
|
{ |
812
|
|
|
$Block['markup'] .= "\n"; |
813
|
|
|
|
814
|
|
|
unset($Block['interrupted']); |
815
|
|
|
} |
816
|
|
|
|
817
|
|
|
$Block['markup'] .= "\n".$Line['body']; |
818
|
|
|
|
819
|
|
|
return $Block; |
820
|
|
|
} |
821
|
|
|
|
822
|
|
|
# |
823
|
|
|
# Reference |
824
|
|
|
|
825
|
|
|
protected function blockReference($Line) |
826
|
|
|
{ |
827
|
|
|
if (preg_match('/^\[(.+?)\]:[ ]*<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $Line['text'], $matches)) |
828
|
|
|
{ |
829
|
|
|
$id = strtolower($matches[1]); |
830
|
|
|
|
831
|
|
|
$Data = array( |
832
|
|
|
'url' => $matches[2], |
833
|
|
|
'title' => null, |
834
|
|
|
); |
835
|
|
|
|
836
|
|
|
if (isset($matches[3])) |
837
|
|
|
{ |
838
|
|
|
$Data['title'] = $matches[3]; |
839
|
|
|
} |
840
|
|
|
|
841
|
|
|
$this->DefinitionData['Reference'][$id] = $Data; |
842
|
|
|
|
843
|
|
|
$Block = array( |
844
|
|
|
'hidden' => true, |
845
|
|
|
); |
846
|
|
|
|
847
|
|
|
return $Block; |
848
|
|
|
} |
849
|
|
|
} |
850
|
|
|
|
851
|
|
|
# |
852
|
|
|
# Table |
853
|
|
|
|
854
|
|
|
protected function blockTable($Line, array $Block = null) |
855
|
|
|
{ |
856
|
|
|
if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted'])) |
857
|
|
|
{ |
858
|
|
|
return; |
859
|
|
|
} |
860
|
|
|
|
861
|
|
|
if (strpos($Block['element']['text'], '|') !== false and chop($Line['text'], ' -:|') === '') |
862
|
|
|
{ |
863
|
|
|
$alignments = array(); |
864
|
|
|
|
865
|
|
|
$divider = $Line['text']; |
866
|
|
|
|
867
|
|
|
$divider = trim($divider); |
868
|
|
|
$divider = trim($divider, '|'); |
869
|
|
|
|
870
|
|
|
$dividerCells = explode('|', $divider); |
871
|
|
|
|
872
|
|
|
foreach ($dividerCells as $dividerCell) |
873
|
|
|
{ |
874
|
|
|
$dividerCell = trim($dividerCell); |
875
|
|
|
|
876
|
|
|
if ($dividerCell === '') |
877
|
|
|
{ |
878
|
|
|
continue; |
879
|
|
|
} |
880
|
|
|
|
881
|
|
|
$alignment = null; |
882
|
|
|
|
883
|
|
|
if ($dividerCell[0] === ':') |
884
|
|
|
{ |
885
|
|
|
$alignment = 'left'; |
886
|
|
|
} |
887
|
|
|
|
888
|
|
|
if (substr($dividerCell, - 1) === ':') |
889
|
|
|
{ |
890
|
|
|
$alignment = $alignment === 'left' ? 'center' : 'right'; |
891
|
|
|
} |
892
|
|
|
|
893
|
|
|
$alignments []= $alignment; |
894
|
|
|
} |
895
|
|
|
|
896
|
|
|
# ~ |
897
|
|
|
|
898
|
|
|
$HeaderElements = array(); |
899
|
|
|
|
900
|
|
|
$header = $Block['element']['text']; |
901
|
|
|
|
902
|
|
|
$header = trim($header); |
903
|
|
|
$header = trim($header, '|'); |
904
|
|
|
|
905
|
|
|
$headerCells = explode('|', $header); |
906
|
|
|
|
907
|
|
|
foreach ($headerCells as $index => $headerCell) |
908
|
|
|
{ |
909
|
|
|
$headerCell = trim($headerCell); |
910
|
|
|
|
911
|
|
|
$HeaderElement = array( |
912
|
|
|
'name' => 'th', |
913
|
|
|
'text' => $headerCell, |
914
|
|
|
'handler' => 'line', |
915
|
|
|
); |
916
|
|
|
|
917
|
|
|
if (isset($alignments[$index])) |
918
|
|
|
{ |
919
|
|
|
$alignment = $alignments[$index]; |
920
|
|
|
|
921
|
|
|
$HeaderElement['attributes'] = array( |
922
|
|
|
'style' => 'text-align: '.$alignment.';', |
923
|
|
|
); |
924
|
|
|
} |
925
|
|
|
|
926
|
|
|
$HeaderElements []= $HeaderElement; |
927
|
|
|
} |
928
|
|
|
|
929
|
|
|
# ~ |
930
|
|
|
|
931
|
|
|
$Block = array( |
932
|
|
|
'alignments' => $alignments, |
933
|
|
|
'identified' => true, |
934
|
|
|
'element' => array( |
935
|
|
|
'name' => 'table', |
936
|
|
|
'handler' => 'elements', |
937
|
|
|
), |
938
|
|
|
); |
939
|
|
|
|
940
|
|
|
$Block['element']['text'] []= array( |
941
|
|
|
'name' => 'thead', |
942
|
|
|
'handler' => 'elements', |
943
|
|
|
); |
944
|
|
|
|
945
|
|
|
$Block['element']['text'] []= array( |
946
|
|
|
'name' => 'tbody', |
947
|
|
|
'handler' => 'elements', |
948
|
|
|
'text' => array(), |
949
|
|
|
); |
950
|
|
|
|
951
|
|
|
$Block['element']['text'][0]['text'] []= array( |
952
|
|
|
'name' => 'tr', |
953
|
|
|
'handler' => 'elements', |
954
|
|
|
'text' => $HeaderElements, |
955
|
|
|
); |
956
|
|
|
|
957
|
|
|
return $Block; |
958
|
|
|
} |
959
|
|
|
} |
960
|
|
|
|
961
|
|
|
protected function blockTableContinue($Line, array $Block) |
962
|
|
|
{ |
963
|
|
|
if (isset($Block['interrupted'])) |
964
|
|
|
{ |
965
|
|
|
return; |
966
|
|
|
} |
967
|
|
|
|
968
|
|
|
if ($Line['text'][0] === '|' or strpos($Line['text'], '|')) |
969
|
|
|
{ |
970
|
|
|
$Elements = array(); |
971
|
|
|
|
972
|
|
|
$row = $Line['text']; |
973
|
|
|
|
974
|
|
|
$row = trim($row); |
975
|
|
|
$row = trim($row, '|'); |
976
|
|
|
|
977
|
|
|
preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]+`|`)+/', $row, $matches); |
978
|
|
|
|
979
|
|
|
foreach ($matches[0] as $index => $cell) |
980
|
|
|
{ |
981
|
|
|
$cell = trim($cell); |
982
|
|
|
|
983
|
|
|
$Element = array( |
984
|
|
|
'name' => 'td', |
985
|
|
|
'handler' => 'line', |
986
|
|
|
'text' => $cell, |
987
|
|
|
); |
988
|
|
|
|
989
|
|
|
if (isset($Block['alignments'][$index])) |
990
|
|
|
{ |
991
|
|
|
$Element['attributes'] = array( |
992
|
|
|
'style' => 'text-align: '.$Block['alignments'][$index].';', |
993
|
|
|
); |
994
|
|
|
} |
995
|
|
|
|
996
|
|
|
$Elements []= $Element; |
997
|
|
|
} |
998
|
|
|
|
999
|
|
|
$Element = array( |
1000
|
|
|
'name' => 'tr', |
1001
|
|
|
'handler' => 'elements', |
1002
|
|
|
'text' => $Elements, |
1003
|
|
|
); |
1004
|
|
|
|
1005
|
|
|
$Block['element']['text'][1]['text'] []= $Element; |
1006
|
|
|
|
1007
|
|
|
return $Block; |
1008
|
|
|
} |
1009
|
|
|
} |
1010
|
|
|
|
1011
|
|
|
# |
1012
|
|
|
# ~ |
1013
|
|
|
# |
1014
|
|
|
|
1015
|
|
|
protected function paragraph($Line) |
1016
|
|
|
{ |
1017
|
|
|
$Block = array( |
1018
|
|
|
'element' => array( |
1019
|
|
|
'name' => 'p', |
1020
|
|
|
'text' => $Line['text'], |
1021
|
|
|
'handler' => 'line', |
1022
|
|
|
), |
1023
|
|
|
); |
1024
|
|
|
|
1025
|
|
|
return $Block; |
1026
|
|
|
} |
1027
|
|
|
|
1028
|
|
|
# |
1029
|
|
|
# Inline Elements |
1030
|
|
|
# |
1031
|
|
|
|
1032
|
|
|
protected $InlineTypes = array( |
1033
|
|
|
'"' => array('SpecialCharacter'), |
1034
|
|
|
'!' => array('Image'), |
1035
|
|
|
'&' => array('SpecialCharacter'), |
1036
|
|
|
'*' => array('Emphasis'), |
1037
|
|
|
':' => array('Url'), |
1038
|
|
|
'<' => array('UrlTag', 'EmailTag', 'Markup', 'SpecialCharacter'), |
1039
|
|
|
'>' => array('SpecialCharacter'), |
1040
|
|
|
'[' => array('Link'), |
1041
|
|
|
'_' => array('Emphasis'), |
1042
|
|
|
'`' => array('Code'), |
1043
|
|
|
'~' => array('Strikethrough'), |
1044
|
|
|
'\\' => array('EscapeSequence'), |
1045
|
|
|
); |
1046
|
|
|
|
1047
|
|
|
# ~ |
1048
|
|
|
|
1049
|
|
|
protected $inlineMarkerList = '!"*_&[:<>`~\\'; |
1050
|
|
|
|
1051
|
|
|
# |
1052
|
|
|
# ~ |
1053
|
|
|
# |
1054
|
|
|
|
1055
|
|
|
public function line($text, $nonNestables=array()) |
1056
|
|
|
{ |
1057
|
|
|
$markup = ''; |
1058
|
|
|
|
1059
|
|
|
# $excerpt is based on the first occurrence of a marker |
1060
|
|
|
|
1061
|
|
|
while ($excerpt = strpbrk($text, $this->inlineMarkerList)) |
1062
|
|
|
{ |
1063
|
|
|
$marker = $excerpt[0]; |
1064
|
|
|
|
1065
|
|
|
$markerPosition = strpos($text, $marker); |
1066
|
|
|
|
1067
|
|
|
$Excerpt = array('text' => $excerpt, 'context' => $text); |
1068
|
|
|
|
1069
|
|
|
foreach ($this->InlineTypes[$marker] as $inlineType) |
1070
|
|
|
{ |
1071
|
|
|
# check to see if the current inline type is nestable in the current context |
1072
|
|
|
|
1073
|
|
|
if ( ! empty($nonNestables) and in_array($inlineType, $nonNestables)) |
1074
|
|
|
{ |
1075
|
|
|
continue; |
1076
|
|
|
} |
1077
|
|
|
|
1078
|
|
|
$Inline = $this->{'inline'.$inlineType}($Excerpt); |
1079
|
|
|
|
1080
|
|
|
if ( ! isset($Inline)) |
1081
|
|
|
{ |
1082
|
|
|
continue; |
1083
|
|
|
} |
1084
|
|
|
|
1085
|
|
|
# makes sure that the inline belongs to "our" marker |
1086
|
|
|
|
1087
|
|
|
if (isset($Inline['position']) and $Inline['position'] > $markerPosition) |
1088
|
|
|
{ |
1089
|
|
|
continue; |
1090
|
|
|
} |
1091
|
|
|
|
1092
|
|
|
# sets a default inline position |
1093
|
|
|
|
1094
|
|
|
if ( ! isset($Inline['position'])) |
1095
|
|
|
{ |
1096
|
|
|
$Inline['position'] = $markerPosition; |
1097
|
|
|
} |
1098
|
|
|
|
1099
|
|
|
# cause the new element to 'inherit' our non nestables |
1100
|
|
|
|
1101
|
|
|
foreach ($nonNestables as $non_nestable) |
1102
|
|
|
{ |
1103
|
|
|
$Inline['element']['nonNestables'][] = $non_nestable; |
1104
|
|
|
} |
1105
|
|
|
|
1106
|
|
|
# the text that comes before the inline |
1107
|
|
|
$unmarkedText = substr($text, 0, $Inline['position']); |
1108
|
|
|
|
1109
|
|
|
# compile the unmarked text |
1110
|
|
|
$markup .= $this->unmarkedText($unmarkedText); |
1111
|
|
|
|
1112
|
|
|
# compile the inline |
1113
|
|
|
$markup .= isset($Inline['markup']) ? $Inline['markup'] : $this->element($Inline['element']); |
1114
|
|
|
|
1115
|
|
|
# remove the examined text |
1116
|
|
|
$text = substr($text, $Inline['position'] + $Inline['extent']); |
1117
|
|
|
|
1118
|
|
|
continue 2; |
1119
|
|
|
} |
1120
|
|
|
|
1121
|
|
|
# the marker does not belong to an inline |
1122
|
|
|
|
1123
|
|
|
$unmarkedText = substr($text, 0, $markerPosition + 1); |
1124
|
|
|
|
1125
|
|
|
$markup .= $this->unmarkedText($unmarkedText); |
1126
|
|
|
|
1127
|
|
|
$text = substr($text, $markerPosition + 1); |
1128
|
|
|
} |
1129
|
|
|
|
1130
|
|
|
$markup .= $this->unmarkedText($text); |
1131
|
|
|
|
1132
|
|
|
return $markup; |
1133
|
|
|
} |
1134
|
|
|
|
1135
|
|
|
# |
1136
|
|
|
# ~ |
1137
|
|
|
# |
1138
|
|
|
|
1139
|
|
|
protected function inlineCode($Excerpt) |
1140
|
|
|
{ |
1141
|
|
|
$marker = $Excerpt['text'][0]; |
1142
|
|
|
|
1143
|
|
|
if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $Excerpt['text'], $matches)) |
1144
|
|
|
{ |
1145
|
|
|
$text = $matches[2]; |
1146
|
|
|
$text = preg_replace("/[ ]*\n/", ' ', $text); |
1147
|
|
|
|
1148
|
|
|
return array( |
1149
|
|
|
'extent' => strlen($matches[0]), |
1150
|
|
|
'element' => array( |
1151
|
|
|
'name' => 'code', |
1152
|
|
|
'text' => $text, |
1153
|
|
|
), |
1154
|
|
|
); |
1155
|
|
|
} |
1156
|
|
|
} |
1157
|
|
|
|
1158
|
|
|
protected function inlineEmailTag($Excerpt) |
1159
|
|
|
{ |
1160
|
|
|
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $Excerpt['text'], $matches)) |
1161
|
|
|
{ |
1162
|
|
|
$url = $matches[1]; |
1163
|
|
|
|
1164
|
|
|
if ( ! isset($matches[2])) |
1165
|
|
|
{ |
1166
|
|
|
$url = 'mailto:' . $url; |
1167
|
|
|
} |
1168
|
|
|
|
1169
|
|
|
return array( |
1170
|
|
|
'extent' => strlen($matches[0]), |
1171
|
|
|
'element' => array( |
1172
|
|
|
'name' => 'a', |
1173
|
|
|
'text' => $matches[1], |
1174
|
|
|
'attributes' => array( |
1175
|
|
|
'href' => $url, |
1176
|
|
|
), |
1177
|
|
|
), |
1178
|
|
|
); |
1179
|
|
|
} |
1180
|
|
|
} |
1181
|
|
|
|
1182
|
|
|
protected function inlineEmphasis($Excerpt) |
1183
|
|
|
{ |
1184
|
|
|
if ( ! isset($Excerpt['text'][1])) |
1185
|
|
|
{ |
1186
|
|
|
return; |
1187
|
|
|
} |
1188
|
|
|
|
1189
|
|
|
$marker = $Excerpt['text'][0]; |
1190
|
|
|
|
1191
|
|
|
if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches)) |
1192
|
|
|
{ |
1193
|
|
|
$emphasis = 'strong'; |
1194
|
|
|
} |
1195
|
|
|
elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches)) |
1196
|
|
|
{ |
1197
|
|
|
$emphasis = 'em'; |
1198
|
|
|
} |
1199
|
|
|
else |
1200
|
|
|
{ |
1201
|
|
|
return; |
1202
|
|
|
} |
1203
|
|
|
|
1204
|
|
|
return array( |
1205
|
|
|
'extent' => strlen($matches[0]), |
1206
|
|
|
'element' => array( |
1207
|
|
|
'name' => $emphasis, |
1208
|
|
|
'handler' => 'line', |
1209
|
|
|
'text' => $matches[1], |
1210
|
|
|
), |
1211
|
|
|
); |
1212
|
|
|
} |
1213
|
|
|
|
1214
|
|
|
protected function inlineEscapeSequence($Excerpt) |
1215
|
|
|
{ |
1216
|
|
|
if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters)) |
1217
|
|
|
{ |
1218
|
|
|
return array( |
1219
|
|
|
'markup' => $Excerpt['text'][1], |
1220
|
|
|
'extent' => 2, |
1221
|
|
|
); |
1222
|
|
|
} |
1223
|
|
|
} |
1224
|
|
|
|
1225
|
|
|
protected function inlineImage($Excerpt) |
1226
|
|
|
{ |
1227
|
|
|
if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[') |
1228
|
|
|
{ |
1229
|
|
|
return; |
1230
|
|
|
} |
1231
|
|
|
|
1232
|
|
|
$Excerpt['text']= substr($Excerpt['text'], 1); |
1233
|
|
|
|
1234
|
|
|
$Link = $this->inlineLink($Excerpt); |
1235
|
|
|
|
1236
|
|
|
if ($Link === null) |
1237
|
|
|
{ |
1238
|
|
|
return; |
1239
|
|
|
} |
1240
|
|
|
|
1241
|
|
|
$Inline = array( |
1242
|
|
|
'extent' => $Link['extent'] + 1, |
1243
|
|
|
'element' => array( |
1244
|
|
|
'name' => 'img', |
1245
|
|
|
'attributes' => array( |
1246
|
|
|
'src' => $Link['element']['attributes']['href'], |
1247
|
|
|
'alt' => $Link['element']['text'], |
1248
|
|
|
), |
1249
|
|
|
), |
1250
|
|
|
); |
1251
|
|
|
|
1252
|
|
|
$Inline['element']['attributes'] += $Link['element']['attributes']; |
1253
|
|
|
|
1254
|
|
|
unset($Inline['element']['attributes']['href']); |
1255
|
|
|
|
1256
|
|
|
return $Inline; |
1257
|
|
|
} |
1258
|
|
|
|
1259
|
|
|
protected function inlineLink($Excerpt) |
1260
|
|
|
{ |
1261
|
|
|
$Element = array( |
1262
|
|
|
'name' => 'a', |
1263
|
|
|
'handler' => 'line', |
1264
|
|
|
'nonNestables' => array('Url', 'Link'), |
1265
|
|
|
'text' => null, |
1266
|
|
|
'attributes' => array( |
1267
|
|
|
'href' => null, |
1268
|
|
|
'title' => null, |
1269
|
|
|
), |
1270
|
|
|
); |
1271
|
|
|
|
1272
|
|
|
$extent = 0; |
1273
|
|
|
|
1274
|
|
|
$remainder = $Excerpt['text']; |
1275
|
|
|
|
1276
|
|
|
if (preg_match('/\[((?:[^][]++|(?R))*+)\]/', $remainder, $matches)) |
1277
|
|
|
{ |
1278
|
|
|
$Element['text'] = $matches[1]; |
1279
|
|
|
|
1280
|
|
|
$extent += strlen($matches[0]); |
1281
|
|
|
|
1282
|
|
|
$remainder = substr($remainder, $extent); |
1283
|
|
|
} |
1284
|
|
|
else |
1285
|
|
|
{ |
1286
|
|
|
return; |
1287
|
|
|
} |
1288
|
|
|
|
1289
|
|
|
if (preg_match('/^[(]\s*+((?:[^ ()]++|[(][^ )]+[)])++)(?:[ ]+("[^"]*"|\'[^\']*\'))?\s*[)]/', $remainder, $matches)) |
1290
|
|
|
{ |
1291
|
|
|
$Element['attributes']['href'] = $matches[1]; |
1292
|
|
|
|
1293
|
|
|
if (isset($matches[2])) |
1294
|
|
|
{ |
1295
|
|
|
$Element['attributes']['title'] = substr($matches[2], 1, - 1); |
1296
|
|
|
} |
1297
|
|
|
|
1298
|
|
|
$extent += strlen($matches[0]); |
1299
|
|
|
} |
1300
|
|
|
else |
1301
|
|
|
{ |
1302
|
|
|
if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches)) |
1303
|
|
|
{ |
1304
|
|
|
$definition = strlen($matches[1]) ? $matches[1] : $Element['text']; |
1305
|
|
|
$definition = strtolower($definition); |
1306
|
|
|
|
1307
|
|
|
$extent += strlen($matches[0]); |
1308
|
|
|
} |
1309
|
|
|
else |
1310
|
|
|
{ |
1311
|
|
|
$definition = strtolower($Element['text']); |
1312
|
|
|
} |
1313
|
|
|
|
1314
|
|
|
if ( ! isset($this->DefinitionData['Reference'][$definition])) |
1315
|
|
|
{ |
1316
|
|
|
return; |
1317
|
|
|
} |
1318
|
|
|
|
1319
|
|
|
$Definition = $this->DefinitionData['Reference'][$definition]; |
1320
|
|
|
|
1321
|
|
|
$Element['attributes']['href'] = $Definition['url']; |
1322
|
|
|
$Element['attributes']['title'] = $Definition['title']; |
1323
|
|
|
} |
1324
|
|
|
|
1325
|
|
|
return array( |
1326
|
|
|
'extent' => $extent, |
1327
|
|
|
'element' => $Element, |
1328
|
|
|
); |
1329
|
|
|
} |
1330
|
|
|
|
1331
|
|
|
protected function inlineMarkup($Excerpt) |
1332
|
|
|
{ |
1333
|
|
|
if ($this->markupEscaped or $this->safeMode or strpos($Excerpt['text'], '>') === false) |
1334
|
|
|
{ |
1335
|
|
|
return; |
1336
|
|
|
} |
1337
|
|
|
|
1338
|
|
|
if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w[\w-]*[ ]*>/s', $Excerpt['text'], $matches)) |
1339
|
|
|
{ |
1340
|
|
|
return array( |
1341
|
|
|
'markup' => $matches[0], |
1342
|
|
|
'extent' => strlen($matches[0]), |
1343
|
|
|
); |
1344
|
|
|
} |
1345
|
|
|
|
1346
|
|
|
if ($Excerpt['text'][1] === '!' and preg_match('/^<!---?[^>-](?:-?[^-])*-->/s', $Excerpt['text'], $matches)) |
1347
|
|
|
{ |
1348
|
|
|
return array( |
1349
|
|
|
'markup' => $matches[0], |
1350
|
|
|
'extent' => strlen($matches[0]), |
1351
|
|
|
); |
1352
|
|
|
} |
1353
|
|
|
|
1354
|
|
|
if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w[\w-]*(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*\/?>/s', $Excerpt['text'], $matches)) |
1355
|
|
|
{ |
1356
|
|
|
return array( |
1357
|
|
|
'markup' => $matches[0], |
1358
|
|
|
'extent' => strlen($matches[0]), |
1359
|
|
|
); |
1360
|
|
|
} |
1361
|
|
|
} |
1362
|
|
|
|
1363
|
|
|
protected function inlineSpecialCharacter($Excerpt) |
1364
|
|
|
{ |
1365
|
|
|
if ($Excerpt['text'][0] === '&' and ! preg_match('/^&#?\w+;/', $Excerpt['text'])) |
1366
|
|
|
{ |
1367
|
|
|
return array( |
1368
|
|
|
'markup' => '&', |
1369
|
|
|
'extent' => 1, |
1370
|
|
|
); |
1371
|
|
|
} |
1372
|
|
|
|
1373
|
|
|
$SpecialCharacter = array('>' => 'gt', '<' => 'lt', '"' => 'quot'); |
1374
|
|
|
|
1375
|
|
|
if (isset($SpecialCharacter[$Excerpt['text'][0]])) |
1376
|
|
|
{ |
1377
|
|
|
return array( |
1378
|
|
|
'markup' => '&'.$SpecialCharacter[$Excerpt['text'][0]].';', |
1379
|
|
|
'extent' => 1, |
1380
|
|
|
); |
1381
|
|
|
} |
1382
|
|
|
} |
1383
|
|
|
|
1384
|
|
|
protected function inlineStrikethrough($Excerpt) |
1385
|
|
|
{ |
1386
|
|
|
if ( ! isset($Excerpt['text'][1])) |
1387
|
|
|
{ |
1388
|
|
|
return; |
1389
|
|
|
} |
1390
|
|
|
|
1391
|
|
|
if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches)) |
1392
|
|
|
{ |
1393
|
|
|
return array( |
1394
|
|
|
'extent' => strlen($matches[0]), |
1395
|
|
|
'element' => array( |
1396
|
|
|
'name' => 'del', |
1397
|
|
|
'text' => $matches[1], |
1398
|
|
|
'handler' => 'line', |
1399
|
|
|
), |
1400
|
|
|
); |
1401
|
|
|
} |
1402
|
|
|
} |
1403
|
|
|
|
1404
|
|
|
protected function inlineUrl($Excerpt) |
1405
|
|
|
{ |
1406
|
|
|
if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/') |
1407
|
|
|
{ |
1408
|
|
|
return; |
1409
|
|
|
} |
1410
|
|
|
|
1411
|
|
|
if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE)) |
1412
|
|
|
{ |
1413
|
|
|
$url = $matches[0][0]; |
1414
|
|
|
|
1415
|
|
|
$Inline = array( |
1416
|
|
|
'extent' => strlen($matches[0][0]), |
1417
|
|
|
'position' => $matches[0][1], |
1418
|
|
|
'element' => array( |
1419
|
|
|
'name' => 'a', |
1420
|
|
|
'text' => $url, |
1421
|
|
|
'attributes' => array( |
1422
|
|
|
'href' => $url, |
1423
|
|
|
), |
1424
|
|
|
), |
1425
|
|
|
); |
1426
|
|
|
|
1427
|
|
|
return $Inline; |
1428
|
|
|
} |
1429
|
|
|
} |
1430
|
|
|
|
1431
|
|
|
protected function inlineUrlTag($Excerpt) |
1432
|
|
|
{ |
1433
|
|
|
if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w+:\/{2}[^ >]+)>/i', $Excerpt['text'], $matches)) |
1434
|
|
|
{ |
1435
|
|
|
$url = $matches[1]; |
1436
|
|
|
|
1437
|
|
|
return array( |
1438
|
|
|
'extent' => strlen($matches[0]), |
1439
|
|
|
'element' => array( |
1440
|
|
|
'name' => 'a', |
1441
|
|
|
'text' => $url, |
1442
|
|
|
'attributes' => array( |
1443
|
|
|
'href' => $url, |
1444
|
|
|
), |
1445
|
|
|
), |
1446
|
|
|
); |
1447
|
|
|
} |
1448
|
|
|
} |
1449
|
|
|
|
1450
|
|
|
# ~ |
1451
|
|
|
|
1452
|
|
|
protected function unmarkedText($text) |
1453
|
|
|
{ |
1454
|
|
|
if ($this->breaksEnabled) |
1455
|
|
|
{ |
1456
|
|
|
$text = preg_replace('/[ ]*\n/', "<br />\n", $text); |
1457
|
|
|
} |
1458
|
|
|
else |
1459
|
|
|
{ |
1460
|
|
|
$text = preg_replace('/(?:[ ][ ]+|[ ]*\\\\)\n/', "<br />\n", $text); |
1461
|
|
|
$text = str_replace(" \n", "\n", $text); |
1462
|
|
|
} |
1463
|
|
|
|
1464
|
|
|
return $text; |
1465
|
|
|
} |
1466
|
|
|
|
1467
|
|
|
# |
1468
|
|
|
# Handlers |
1469
|
|
|
# |
1470
|
|
|
|
1471
|
|
|
protected function element(array $Element) |
1472
|
|
|
{ |
1473
|
|
|
if ($this->safeMode) |
1474
|
|
|
{ |
1475
|
|
|
$Element = $this->sanitiseElement($Element); |
1476
|
|
|
} |
1477
|
|
|
|
1478
|
|
|
$markup = '<'.$Element['name']; |
1479
|
|
|
|
1480
|
|
|
if (isset($Element['attributes'])) |
1481
|
|
|
{ |
1482
|
|
|
foreach ($Element['attributes'] as $name => $value) |
1483
|
|
|
{ |
1484
|
|
|
if ($value === null) |
1485
|
|
|
{ |
1486
|
|
|
continue; |
1487
|
|
|
} |
1488
|
|
|
|
1489
|
|
|
$markup .= ' '.$name.'="'.self::escape($value).'"'; |
1490
|
|
|
} |
1491
|
|
|
} |
1492
|
|
|
|
1493
|
|
|
if (isset($Element['text'])) |
1494
|
|
|
{ |
1495
|
|
|
$markup .= '>'; |
1496
|
|
|
|
1497
|
|
|
if (!isset($Element['nonNestables'])) |
1498
|
|
|
{ |
1499
|
|
|
$Element['nonNestables'] = array(); |
1500
|
|
|
} |
1501
|
|
|
|
1502
|
|
|
if (isset($Element['handler'])) |
1503
|
|
|
{ |
1504
|
|
|
$markup .= $this->{$Element['handler']}($Element['text'], $Element['nonNestables']); |
1505
|
|
|
} |
1506
|
|
|
else |
1507
|
|
|
{ |
1508
|
|
|
$markup .= self::escape($Element['text'], true); |
1509
|
|
|
} |
1510
|
|
|
|
1511
|
|
|
$markup .= '</'.$Element['name'].'>'; |
1512
|
|
|
} |
1513
|
|
|
else |
1514
|
|
|
{ |
1515
|
|
|
$markup .= ' />'; |
1516
|
|
|
} |
1517
|
|
|
|
1518
|
|
|
return $markup; |
1519
|
|
|
} |
1520
|
|
|
|
1521
|
|
|
protected function elements(array $Elements) |
1522
|
|
|
{ |
1523
|
|
|
$markup = ''; |
1524
|
|
|
|
1525
|
|
|
foreach ($Elements as $Element) |
1526
|
|
|
{ |
1527
|
|
|
$markup .= "\n" . $this->element($Element); |
1528
|
|
|
} |
1529
|
|
|
|
1530
|
|
|
$markup .= "\n"; |
1531
|
|
|
|
1532
|
|
|
return $markup; |
1533
|
|
|
} |
1534
|
|
|
|
1535
|
|
|
# ~ |
1536
|
|
|
|
1537
|
|
|
protected function li($lines) |
1538
|
|
|
{ |
1539
|
|
|
$markup = $this->lines($lines); |
1540
|
|
|
|
1541
|
|
|
$trimmedMarkup = trim($markup); |
1542
|
|
|
|
1543
|
|
|
if ( ! in_array('', $lines) and substr($trimmedMarkup, 0, 3) === '<p>') |
1544
|
|
|
{ |
1545
|
|
|
$markup = $trimmedMarkup; |
1546
|
|
|
$markup = substr($markup, 3); |
1547
|
|
|
|
1548
|
|
|
$position = strpos($markup, "</p>"); |
1549
|
|
|
|
1550
|
|
|
$markup = substr_replace($markup, '', $position, 4); |
1551
|
|
|
} |
1552
|
|
|
|
1553
|
|
|
return $markup; |
1554
|
|
|
} |
1555
|
|
|
|
1556
|
|
|
# |
1557
|
|
|
# Deprecated Methods |
1558
|
|
|
# |
1559
|
|
|
|
1560
|
|
|
function parse($text) |
|
|
|
|
1561
|
|
|
{ |
1562
|
|
|
$markup = $this->text($text); |
1563
|
|
|
|
1564
|
|
|
return $markup; |
1565
|
|
|
} |
1566
|
|
|
|
1567
|
|
|
protected function sanitiseElement(array $Element) |
1568
|
|
|
{ |
1569
|
|
|
static $goodAttribute = '/^[a-zA-Z0-9][a-zA-Z0-9-_]*+$/'; |
1570
|
|
|
static $safeUrlNameToAtt = array( |
1571
|
|
|
'a' => 'href', |
1572
|
|
|
'img' => 'src', |
1573
|
|
|
); |
1574
|
|
|
|
1575
|
|
|
if (isset($safeUrlNameToAtt[$Element['name']])) |
1576
|
|
|
{ |
1577
|
|
|
$Element = $this->filterUnsafeUrlInAttribute($Element, $safeUrlNameToAtt[$Element['name']]); |
1578
|
|
|
} |
1579
|
|
|
|
1580
|
|
|
if ( ! empty($Element['attributes'])) |
1581
|
|
|
{ |
1582
|
|
|
foreach ($Element['attributes'] as $att => $val) |
1583
|
|
|
{ |
1584
|
|
|
# filter out badly parsed attribute |
1585
|
|
|
if ( ! preg_match($goodAttribute, $att)) |
1586
|
|
|
{ |
1587
|
|
|
unset($Element['attributes'][$att]); |
1588
|
|
|
} |
1589
|
|
|
# dump onevent attribute |
1590
|
|
|
elseif (self::striAtStart($att, 'on')) |
1591
|
|
|
{ |
1592
|
|
|
unset($Element['attributes'][$att]); |
1593
|
|
|
} |
1594
|
|
|
} |
1595
|
|
|
} |
1596
|
|
|
|
1597
|
|
|
return $Element; |
1598
|
|
|
} |
1599
|
|
|
|
1600
|
|
|
protected function filterUnsafeUrlInAttribute(array $Element, $attribute) |
1601
|
|
|
{ |
1602
|
|
|
foreach ($this->safeLinksWhitelist as $scheme) |
1603
|
|
|
{ |
1604
|
|
|
if (self::striAtStart($Element['attributes'][$attribute], $scheme)) |
1605
|
|
|
{ |
1606
|
|
|
return $Element; |
1607
|
|
|
} |
1608
|
|
|
} |
1609
|
|
|
|
1610
|
|
|
$Element['attributes'][$attribute] = str_replace(':', '%3A', $Element['attributes'][$attribute]); |
1611
|
|
|
|
1612
|
|
|
return $Element; |
1613
|
|
|
} |
1614
|
|
|
|
1615
|
|
|
# |
1616
|
|
|
# Static Methods |
1617
|
|
|
# |
1618
|
|
|
|
1619
|
|
|
protected static function escape($text, $allowQuotes = false) |
1620
|
|
|
{ |
1621
|
|
|
return htmlspecialchars($text, $allowQuotes ? ENT_NOQUOTES : ENT_QUOTES, 'UTF-8'); |
1622
|
|
|
} |
1623
|
|
|
|
1624
|
|
|
protected static function striAtStart($string, $needle) |
1625
|
|
|
{ |
1626
|
|
|
$len = strlen($needle); |
1627
|
|
|
|
1628
|
|
|
if ($len > strlen($string)) |
1629
|
|
|
{ |
1630
|
|
|
return false; |
1631
|
|
|
} |
1632
|
|
|
else |
1633
|
|
|
{ |
1634
|
|
|
return strtolower(substr($string, 0, $len)) === strtolower($needle); |
1635
|
|
|
} |
1636
|
|
|
} |
1637
|
|
|
|
1638
|
|
|
static function instance($name = 'default') : Parsedown |
|
|
|
|
1639
|
|
|
{ |
1640
|
|
|
if (isset(self::$instances[$name])) |
1641
|
|
|
{ |
1642
|
|
|
return self::$instances[$name]; |
1643
|
|
|
} |
1644
|
|
|
|
1645
|
|
|
$instance = new static(); |
1646
|
|
|
|
1647
|
|
|
self::$instances[$name] = $instance; |
1648
|
|
|
|
1649
|
|
|
return $instance; |
1650
|
|
|
} |
1651
|
|
|
|
1652
|
|
|
private static $instances = array(); |
1653
|
|
|
|
1654
|
|
|
# |
1655
|
|
|
# Fields |
1656
|
|
|
# |
1657
|
|
|
|
1658
|
|
|
protected $DefinitionData; |
1659
|
|
|
|
1660
|
|
|
# |
1661
|
|
|
# Read-Only |
1662
|
|
|
|
1663
|
|
|
protected $specialCharacters = array( |
1664
|
|
|
'\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|', |
1665
|
|
|
); |
1666
|
|
|
|
1667
|
|
|
protected $StrongRegex = array( |
1668
|
|
|
'*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s', |
1669
|
|
|
'_' => '/^__((?:\\\\_|[^_]|_[^_]*_)+?)__(?!_)/us', |
1670
|
|
|
); |
1671
|
|
|
|
1672
|
|
|
protected $EmRegex = array( |
1673
|
|
|
'*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s', |
1674
|
|
|
'_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us', |
1675
|
|
|
); |
1676
|
|
|
|
1677
|
|
|
protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*(?:\s*=\s*(?:[^"\'=<>`\s]+|"[^"]*"|\'[^\']*\'))?'; |
1678
|
|
|
|
1679
|
|
|
protected $voidElements = array( |
1680
|
|
|
'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source', |
1681
|
|
|
); |
1682
|
|
|
|
1683
|
|
|
protected $textLevelElements = array( |
1684
|
|
|
'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont', |
1685
|
|
|
'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing', |
1686
|
|
|
'i', 'rp', 'del', 'code', 'strike', 'marquee', |
1687
|
|
|
'q', 'rt', 'ins', 'font', 'strong', |
1688
|
|
|
's', 'tt', 'kbd', 'mark', |
1689
|
|
|
'u', 'xm', 'sub', 'nobr', |
1690
|
|
|
'sup', 'ruby', |
1691
|
|
|
'var', 'span', |
1692
|
|
|
'wbr', 'time', |
1693
|
|
|
); |
1694
|
|
|
} |
1695
|
|
|
|
Adding explicit visibility (
private
,protected
, orpublic
) is generally recommend to communicate to other developers how, and from where this method is intended to be used.