tags allowed) * Added wiki style internal link parsing * Added wiki style internal link parsing with display text * Added image support */ class Slimdown { public static $rules = array ( '/\r\n/' => "\n", // new line normalisation '/(#+)(.*)/' => 'self::header', // headers '/(\*)(.*?)\1/' => '\2', // bold '/(_)(.*?)\1/' => '\2', // emphasis '/!\[(.*)\]\(([^\s]+)\s(\d+.+)\s(left|right)\)/' => '', // images with size '/!\[(.*)\]\(([^\s]+)\s(\d+.+)\)/' => '', // images with size '/!\[(.*)\]\((.*)\)/' => '', // basic images '/\[\[([a-zA-Z0-9\_\- ]+)\|([a-zA-Z0-9\_\- ]+)\]\]/' => '\2', //internal links with display text '/\[\[([a-zA-Z0-9\_\- ]+)\]\]/' => '\1', //internal links '/\[([^\[]+)\]\(([^\)]+)\)/' => '\1', // links '/\~\~(.*?)\~\~/' => '\1', // del '/\:\"(.*?)\"\:/' => '\1', // quote '/`(.*?)`/' => '\1', // inline code '/\n\s*(\*|-)(.*)/' => 'self::ul_list', // ul lists '/\n[0-9]+\.(.*)/' => 'self::ol_list', // ol lists '/\n(>|\>)(.*)/' => 'self::blockquote', // blockquotes '/\n-{3,}/' => "\n

---

", // horizontal rule '/\n([^\n]+)\n\n/' => 'self::para', // add paragraphs '/<\/ul>\s?

/' => '', // fix extra ul '/<\/ol>\s?
/' => '', // fix extra ol '/<\/blockquote>

/' => "\n" // fix extra blockquote ); private static function para ($regs) { $line = $regs[1]; $trimmed = trim ($line); if (preg_match ('/^<\/?(ul|ol|li|h|p|bl)/', $trimmed)) { return "\n" . $line . "\n"; } return sprintf ("\n

%s

\n", $trimmed); } private static function ul_list ($regs) { $item = $regs[2]; return sprintf ("\n

\n\t
• %s
\n

", trim($item)); } private static function ol_list ($regs) { $item = $regs[1]; return sprintf ("\n

\n\t
1. %s
\n

", trim($item)); } private static function blockquote ($regs) { $item = $regs[2]; return sprintf ("\n

%s

", trim($item)); } private static function header ($regs) { list ($tmp, $chars, $header) = $regs; $level = strlen ($chars); return sprintf ('%s', $level + 1, trim($header), $level + 1); } /** * Add a rule. */ public static function add_rule ($regex, $replacement) { self::$rules[$regex] = $replacement; } /** * Render some Markdown into HTML. */ public static function render ($text) { foreach (self::$rules as $regex => $replacement) { if (is_callable ( $replacement)) { $text = preg_replace_callback ($regex, $replacement, $text); } else { $text = preg_replace ($regex, $replacement, $text); } } return trim ($text); } } //////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////// register_module([ "name" => "Parsedown", "version" => "0.1", "author" => "Johnny Broadway, Emanuil Rusev & Starbeamrainbowlabs", "description" => "An upgraded parser based on Emanuil Rusev's Parsedown Extra PHP library (https://github.com/erusev/parsedown-extra), which is licensed MIT. Also uses a modified Slimdown engine by Johnny Broadway in order to add support for internal links etc. Please be careful, as this module adds a _ton_ of weight to your installation.", "id" => "parser-parsedown", "optional" => true, "code" => function() { $parsedown_extra = new ParsedownExtra(); add_parser("parsedown", function($source) use ($parsedown_extra) { $source = Parsedown_Slimdown_Extensions::render($source); return $parsedown_extra->text($source); }); } ]); /** * Slimdown - A very basic regex-based Markdown parser. Supports the * following elements (and can be extended via Slimdown::add_rule()): * * - Headers * - Links * - Bold * - Emphasis * - Deletions * - Quotes * - Inline code * - Blockquotes * - Ordered/unordered lists * - Horizontal rules * * Author: Johnny Broadway * Website: https://gist.github.com/jbroadway/2836900 * License: MIT */ /** * Modified by Starbeamrainbowlabs (starbeamrainbowlabs) * * Changed bold to use single asterisks * Changed italics to use single underscores * Added one to add the heading levels (no

tags allowed) * Added wiki style internal link parsing * Added wiki style internal link parsing with display text * Added image support */ class Parsedown_Slimdown_Extensions { public static $rules = array ( '/\r\n/' => "\n", // new line normalisation '/!\[(.*)\]\(([^\s]+)\s(\d+.+)\s(left|right)\)/' => '', // images with size '/!\[(.*)\]\(([^\s]+)\s(\d+.+)\)/' => '', // images with size '/!\[(.*)\]\((.*)\)/' => '', // basic images '/\[\[([a-zA-Z0-9\_\- ]+)\|([a-zA-Z0-9\_\- ]+)\]\]/' => '\2', //internal links with display text '/\[\[([a-zA-Z0-9\_\- ]+)\]\]/' => '\1', //internal links ); /** * Add a rule. */ public static function add_rule ($regex, $replacement) { self::$rules[$regex] = $replacement; } /** * Render some Markdown into HTML. */ public static function render ($text) { foreach (self::$rules as $regex => $replacement) { if (is_callable ( $replacement)) { $text = preg_replace_callback ($regex, $replacement, $text); } else { $text = preg_replace ($regex, $replacement, $text); } } return trim ($text); } } # # # Parsedown # http://parsedown.org # # (c) Emanuil Rusev # http://erusev.com # # For the full license information, view the LICENSE file that was distributed # with this source code. # # class Parsedown { # ~ const version = '1.5.4'; # ~ function text($text) { # make sure no definitions are set $this->DefinitionData = array(); # standardize line breaks $text = str_replace(array("\r\n", "\r"), "\n", $text); # remove surrounding line breaks $text = trim($text, "\n"); # split text into lines $lines = explode("\n", $text); # iterate through lines to identify blocks $markup = $this->lines($lines); # trim line breaks $markup = trim($markup, "\n"); return $markup; } # # Setters # function setBreaksEnabled($breaksEnabled) { $this->breaksEnabled = $breaksEnabled; return $this; } protected $breaksEnabled; function setMarkupEscaped($markupEscaped) { $this->markupEscaped = $markupEscaped; return $this; } protected $markupEscaped; function setUrlsLinked($urlsLinked) { $this->urlsLinked = $urlsLinked; return $this; } protected $urlsLinked = true; # # Lines # protected $BlockTypes = array( '#' => array('Header'), '*' => array('Rule', 'List'), '+' => array('List'), '-' => array('SetextHeader', 'Table', 'Rule', 'List'), '0' => array('List'), '1' => array('List'), '2' => array('List'), '3' => array('List'), '4' => array('List'), '5' => array('List'), '6' => array('List'), '7' => array('List'), '8' => array('List'), '9' => array('List'), ':' => array('Table'), '<' => array('Comment', 'Markup'), '=' => array('SetextHeader'), '>' => array('Quote'), '[' => array('Reference'), '_' => array('Rule'), '`' => array('FencedCode'), '|' => array('Table'), '~' => array('FencedCode'), ); # ~ protected $unmarkedBlockTypes = array( 'Code', ); # # Blocks # private function lines(array $lines) { $CurrentBlock = null; foreach ($lines as $line) { if (chop($line) === '') { if (isset($CurrentBlock)) { $CurrentBlock['interrupted'] = true; } continue; } if (strpos($line, "\t") !== false) { $parts = explode("\t", $line); $line = $parts[0]; unset($parts[0]); foreach ($parts as $part) { $shortage = 4 - mb_strlen($line, 'utf-8') % 4; $line .= str_repeat(' ', $shortage); $line .= $part; } } $indent = 0; while (isset($line[$indent]) and $line[$indent] === ' ') { $indent ++; } $text = $indent > 0 ? substr($line, $indent) : $line; # ~ $Line = array('body' => $line, 'indent' => $indent, 'text' => $text); # ~ if (isset($CurrentBlock['continuable'])) { $Block = $this->{'block'.$CurrentBlock['type'].'Continue'}($Line, $CurrentBlock); if (isset($Block)) { $CurrentBlock = $Block; continue; } else { if (method_exists($this, 'block'.$CurrentBlock['type'].'Complete')) { $CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock); } } } # ~ $marker = $text[0]; # ~ $blockTypes = $this->unmarkedBlockTypes; if (isset($this->BlockTypes[$marker])) { foreach ($this->BlockTypes[$marker] as $blockType) { $blockTypes []= $blockType; } } # # ~ foreach ($blockTypes as $blockType) { $Block = $this->{'block'.$blockType}($Line, $CurrentBlock); if (isset($Block)) { $Block['type'] = $blockType; if ( ! isset($Block['identified'])) { $Blocks []= $CurrentBlock; $Block['identified'] = true; } if (method_exists($this, 'block'.$blockType.'Continue')) { $Block['continuable'] = true; } $CurrentBlock = $Block; continue 2; } } # ~ if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted'])) { $CurrentBlock['element']['text'] .= "\n".$text; } else { $Blocks []= $CurrentBlock; $CurrentBlock = $this->paragraph($Line); $CurrentBlock['identified'] = true; } } # ~ if (isset($CurrentBlock['continuable']) and method_exists($this, 'block'.$CurrentBlock['type'].'Complete')) { $CurrentBlock = $this->{'block'.$CurrentBlock['type'].'Complete'}($CurrentBlock); } # ~ $Blocks []= $CurrentBlock; unset($Blocks[0]); # ~ $markup = ''; foreach ($Blocks as $Block) { if (isset($Block['hidden'])) { continue; } $markup .= "\n"; $markup .= isset($Block['markup']) ? $Block['markup'] : $this->element($Block['element']); } $markup .= "\n"; # ~ return $markup; } # # Code protected function blockCode($Line, $Block = null) { if (isset($Block) and ! isset($Block['type']) and ! isset($Block['interrupted'])) { return; } if ($Line['indent'] >= 4) { $text = substr($Line['body'], 4); $Block = array( 'element' => array( 'name' => 'pre', 'handler' => 'element', 'text' => array( 'name' => 'code', 'text' => $text, ), ), ); return $Block; } } protected function blockCodeContinue($Line, $Block) { if ($Line['indent'] >= 4) { if (isset($Block['interrupted'])) { $Block['element']['text']['text'] .= "\n"; unset($Block['interrupted']); } $Block['element']['text']['text'] .= "\n"; $text = substr($Line['body'], 4); $Block['element']['text']['text'] .= $text; return $Block; } } protected function blockCodeComplete($Block) { $text = $Block['element']['text']['text']; $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8'); $Block['element']['text']['text'] = $text; return $Block; } # # Comment protected function blockComment($Line) { if ($this->markupEscaped) { return; } if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!') { $Block = array( 'markup' => $Line['body'], ); if (preg_match('/-->$/', $Line['text'])) { $Block['closed'] = true; } return $Block; } } protected function blockCommentContinue($Line, array $Block) { if (isset($Block['closed'])) { return; } $Block['markup'] .= "\n" . $Line['body']; if (preg_match('/-->$/', $Line['text'])) { $Block['closed'] = true; } return $Block; } # # Fenced Code protected function blockFencedCode($Line) { if (preg_match('/^['.$Line['text'][0].']{3,}[ ]*([\w-]+)?[ ]*$/', $Line['text'], $matches)) { $Element = array( 'name' => 'code', 'text' => '', ); if (isset($matches[1])) { $class = 'language-'.$matches[1]; $Element['attributes'] = array( 'class' => $class, ); } $Block = array( 'char' => $Line['text'][0], 'element' => array( 'name' => 'pre', 'handler' => 'element', 'text' => $Element, ), ); return $Block; } } protected function blockFencedCodeContinue($Line, $Block) { if (isset($Block['complete'])) { return; } if (isset($Block['interrupted'])) { $Block['element']['text']['text'] .= "\n"; unset($Block['interrupted']); } if (preg_match('/^'.$Block['char'].'{3,}[ ]*$/', $Line['text'])) { $Block['element']['text']['text'] = substr($Block['element']['text']['text'], 1); $Block['complete'] = true; return $Block; } $Block['element']['text']['text'] .= "\n".$Line['body'];; return $Block; } protected function blockFencedCodeComplete($Block) { $text = $Block['element']['text']['text']; $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8'); $Block['element']['text']['text'] = $text; return $Block; } # # Header protected function blockHeader($Line) { if (isset($Line['text'][1])) { $level = 1; while (isset($Line['text'][$level]) and $Line['text'][$level] === '#') { $level ++; } if ($level > 6) { return; } $text = trim($Line['text'], '# '); $Block = array( 'element' => array( 'name' => 'h' . min(6, $level), 'text' => $text, 'handler' => 'line', ), ); return $Block; } } # # List protected function blockList($Line) { list($name, $pattern) = $Line['text'][0] <= '-' ? array('ul', '[*+-]') : array('ol', '[0-9]+[.]'); if (preg_match('/^('.$pattern.'[ ]+)(.*)/', $Line['text'], $matches)) { $Block = array( 'indent' => $Line['indent'], 'pattern' => $pattern, 'element' => array( 'name' => $name, 'handler' => 'elements', ), ); $Block['li'] = array( 'name' => 'li', 'handler' => 'li', 'text' => array( $matches[2], ), ); $Block['element']['text'] []= & $Block['li']; return $Block; } } protected function blockListContinue($Line, array $Block) { if ($Block['indent'] === $Line['indent'] and preg_match('/^'.$Block['pattern'].'(?:[ ]+(.*)|$)/', $Line['text'], $matches)) { if (isset($Block['interrupted'])) { $Block['li']['text'] []= ''; unset($Block['interrupted']); } unset($Block['li']); $text = isset($matches[1]) ? $matches[1] : ''; $Block['li'] = array( 'name' => 'li', 'handler' => 'li', 'text' => array( $text, ), ); $Block['element']['text'] []= & $Block['li']; return $Block; } if ($Line['text'][0] === '[' and $this->blockReference($Line)) { return $Block; } if ( ! isset($Block['interrupted'])) { $text = preg_replace('/^[ ]{0,4}/', '', $Line['body']); $Block['li']['text'] []= $text; return $Block; } if ($Line['indent'] > 0) { $Block['li']['text'] []= ''; $text = preg_replace('/^[ ]{0,4}/', '', $Line['body']); $Block['li']['text'] []= $text; unset($Block['interrupted']); return $Block; } } # # Quote protected function blockQuote($Line) { if (preg_match('/^>[ ]?(.*)/', $Line['text'], $matches)) { $Block = array( 'element' => array( 'name' => 'blockquote', 'handler' => 'lines', 'text' => (array) $matches[1], ), ); return $Block; } } protected function blockQuoteContinue($Line, array $Block) { if ($Line['text'][0] === '>' and preg_match('/^>[ ]?(.*)/', $Line['text'], $matches)) { if (isset($Block['interrupted'])) { $Block['element']['text'] []= ''; unset($Block['interrupted']); } $Block['element']['text'] []= $matches[1]; return $Block; } if ( ! isset($Block['interrupted'])) { $Block['element']['text'] []= $Line['text']; return $Block; } } # # Rule protected function blockRule($Line) { if (preg_match('/^(['.$Line['text'][0].'])([ ]*\1){2,}[ ]*$/', $Line['text'])) { $Block = array( 'element' => array( 'name' => 'hr' ), ); return $Block; } } # # Setext protected function blockSetextHeader($Line, array $Block = null) { if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted'])) { return; } if (chop($Line['text'], $Line['text'][0]) === '') { $Block['element']['name'] = $Line['text'][0] === '=' ? 'h1' : 'h2'; return $Block; } } # # Markup protected function blockMarkup($Line) { if ($this->markupEscaped) { return; } if (preg_match('/^<(\w*)(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*(\/)/', $Line['text'], $matches)) { $element = strtolower($matches[1]); if (in_array($element, $this->textLevelElements)) { return; } $Block = array( 'name' => $matches[1], 'depth' => 0, 'markup' => $Line['text'], ); $length = strlen($matches[0]); $remainder = substr($Line['text'], $length); if (trim($remainder) === '') { if (isset($matches[2]) or in_array($matches[1], $this->voidElements)) { $Block['closed'] = true; $Block['void'] = true; } } else { if (isset($matches[2]) or in_array($matches[1], $this->voidElements)) { return; } if (preg_match('/<\/'.$matches[1].'>[ ]*$/i', $remainder)) { $Block['closed'] = true; } } return $Block; } } protected function blockMarkupContinue($Line, array $Block) { if (isset($Block['closed'])) { return; } if (preg_match('/^<'.$Block['name'].'(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*>/i', $Line['text'])) # open { $Block['depth'] ++; } if (preg_match('/(.*?)<\/'.$Block['name'].'>[ ]*$/i', $Line['text'], $matches)) # close { if ($Block['depth'] > 0) { $Block['depth'] --; } else { $Block['closed'] = true; } } if (isset($Block['interrupted'])) { $Block['markup'] .= "\n"; unset($Block['interrupted']); } $Block['markup'] .= "\n".$Line['body']; return $Block; } # # Reference protected function blockReference($Line) { if (preg_match('/^\[(.+?)\]:[ ]*?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $Line['text'], $matches)) { $id = strtolower($matches[1]); $Data = array( 'url' => $matches[2], 'title' => null, ); if (isset($matches[3])) { $Data['title'] = $matches[3]; } $this->DefinitionData['Reference'][$id] = $Data; $Block = array( 'hidden' => true, ); return $Block; } } # # Table protected function blockTable($Line, array $Block = null) { if ( ! isset($Block) or isset($Block['type']) or isset($Block['interrupted'])) { return; } if (strpos($Block['element']['text'], '|') !== false and chop($Line['text'], ' -:|') === '') { $alignments = array(); $divider = $Line['text']; $divider = trim($divider); $divider = trim($divider, '|'); $dividerCells = explode('|', $divider); foreach ($dividerCells as $dividerCell) { $dividerCell = trim($dividerCell); if ($dividerCell === '') { continue; } $alignment = null; if ($dividerCell[0] === ':') { $alignment = 'left'; } if (substr($dividerCell, - 1) === ':') { $alignment = $alignment === 'left' ? 'center' : 'right'; } $alignments []= $alignment; } # ~ $HeaderElements = array(); $header = $Block['element']['text']; $header = trim($header); $header = trim($header, '|'); $headerCells = explode('|', $header); foreach ($headerCells as $index => $headerCell) { $headerCell = trim($headerCell); $HeaderElement = array( 'name' => 'th', 'text' => $headerCell, 'handler' => 'line', ); if (isset($alignments[$index])) { $alignment = $alignments[$index]; $HeaderElement['attributes'] = array( 'style' => 'text-align: '.$alignment.';', ); } $HeaderElements []= $HeaderElement; } # ~ $Block = array( 'alignments' => $alignments, 'identified' => true, 'element' => array( 'name' => 'table', 'handler' => 'elements', ), ); $Block['element']['text'] []= array( 'name' => 'thead', 'handler' => 'elements', ); $Block['element']['text'] []= array( 'name' => 'tbody', 'handler' => 'elements', 'text' => array(), ); $Block['element']['text'][0]['text'] []= array( 'name' => 'tr', 'handler' => 'elements', 'text' => $HeaderElements, ); return $Block; } } protected function blockTableContinue($Line, array $Block) { if (isset($Block['interrupted'])) { return; } if ($Line['text'][0] === '|' or strpos($Line['text'], '|')) { $Elements = array(); $row = $Line['text']; $row = trim($row); $row = trim($row, '|'); preg_match_all('/(?:(\\\\[|])|[^|`]|`[^`]+`|`)+/', $row, $matches); foreach ($matches[0] as $index => $cell) { $cell = trim($cell); $Element = array( 'name' => 'td', 'handler' => 'line', 'text' => $cell, ); if (isset($Block['alignments'][$index])) { $Element['attributes'] = array( 'style' => 'text-align: '.$Block['alignments'][$index].';', ); } $Elements []= $Element; } $Element = array( 'name' => 'tr', 'handler' => 'elements', 'text' => $Elements, ); $Block['element']['text'][1]['text'] []= $Element; return $Block; } } # # ~ # protected function paragraph($Line) { $Block = array( 'element' => array( 'name' => 'p', 'text' => $Line['text'], 'handler' => 'line', ), ); return $Block; } # # Inline Elements # protected $InlineTypes = array( '"' => array('SpecialCharacter'), '!' => array('Image'), '&' => array('SpecialCharacter'), '*' => array('Emphasis'), ':' => array('Url'), '<' => array('UrlTag', 'EmailTag', 'Markup', 'SpecialCharacter'), '>' => array('SpecialCharacter'), '[' => array('Link'), '_' => array('Emphasis'), '`' => array('Code'), '~' => array('Strikethrough'), '\\' => array('EscapeSequence'), ); # ~ protected $inlineMarkerList = '!"*_&[:<>`~\\'; # # ~ # public function line($text) { $markup = ''; # $excerpt is based on the first occurrence of a marker while ($excerpt = strpbrk($text, $this->inlineMarkerList)) { $marker = $excerpt[0]; $markerPosition = strpos($text, $marker); $Excerpt = array('text' => $excerpt, 'context' => $text); foreach ($this->InlineTypes[$marker] as $inlineType) { $Inline = $this->{'inline'.$inlineType}($Excerpt); if ( ! isset($Inline)) { continue; } # makes sure that the inline belongs to "our" marker if (isset($Inline['position']) and $Inline['position'] > $markerPosition) { continue; } # sets a default inline position if ( ! isset($Inline['position'])) { $Inline['position'] = $markerPosition; } # the text that comes before the inline $unmarkedText = substr($text, 0, $Inline['position']); # compile the unmarked text $markup .= $this->unmarkedText($unmarkedText); # compile the inline $markup .= isset($Inline['markup']) ? $Inline['markup'] : $this->element($Inline['element']); # remove the examined text $text = substr($text, $Inline['position'] + $Inline['extent']); continue 2; } # the marker does not belong to an inline $unmarkedText = substr($text, 0, $markerPosition + 1); $markup .= $this->unmarkedText($unmarkedText); $text = substr($text, $markerPosition + 1); } $markup .= $this->unmarkedText($text); return $markup; } # # ~ # protected function inlineCode($Excerpt) { $marker = $Excerpt['text'][0]; if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(? strlen($matches[0]), 'element' => array( 'name' => 'code', 'text' => $text, ), ); } } protected function inlineEmailTag($Excerpt) { if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<((mailto:)?\S+?@\S+?)>/i', $Excerpt['text'], $matches)) { $url = $matches[1]; if ( ! isset($matches[2])) { $url = 'mailto:' . $url; } return array( 'extent' => strlen($matches[0]), 'element' => array( 'name' => 'a', 'text' => $matches[1], 'attributes' => array( 'href' => $url, ), ), ); } } protected function inlineEmphasis($Excerpt) { if ( ! isset($Excerpt['text'][1])) { return; } $marker = $Excerpt['text'][0]; if ($Excerpt['text'][1] === $marker and preg_match($this->StrongRegex[$marker], $Excerpt['text'], $matches)) { $emphasis = 'strong'; } elseif (preg_match($this->EmRegex[$marker], $Excerpt['text'], $matches)) { $emphasis = 'em'; } else { return; } return array( 'extent' => strlen($matches[0]), 'element' => array( 'name' => $emphasis, 'handler' => 'line', 'text' => $matches[1], ), ); } protected function inlineEscapeSequence($Excerpt) { if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters)) { return array( 'markup' => $Excerpt['text'][1], 'extent' => 2, ); } } protected function inlineImage($Excerpt) { if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '[') { return; } $Excerpt['text']= substr($Excerpt['text'], 1); $Link = $this->inlineLink($Excerpt); if ($Link === null) { return; } $Inline = array( 'extent' => $Link['extent'] + 1, 'element' => array( 'name' => 'img', 'attributes' => array( 'src' => $Link['element']['attributes']['href'], 'alt' => $Link['element']['text'], ), ), ); $Inline['element']['attributes'] += $Link['element']['attributes']; unset($Inline['element']['attributes']['href']); return $Inline; } protected function inlineLink($Excerpt) { $Element = array( 'name' => 'a', 'handler' => 'line', 'text' => null, 'attributes' => array( 'href' => null, 'title' => null, ), ); $extent = 0; $remainder = $Excerpt['text']; if (preg_match('/\[((?:[^][]|(?R))*)\]/', $remainder, $matches)) { $Element['text'] = $matches[1]; $extent += strlen($matches[0]); $remainder = substr($remainder, $extent); } else { return; } if (preg_match('/^[(]((?:[^ ()]|[(][^ )]+[)])+)(?:[ ]+("[^"]*"|\'[^\']*\'))?[)]/', $remainder, $matches)) { $Element['attributes']['href'] = $matches[1]; if (isset($matches[2])) { $Element['attributes']['title'] = substr($matches[2], 1, - 1); } $extent += strlen($matches[0]); } else { if (preg_match('/^\s*\[(.*?)\]/', $remainder, $matches)) { $definition = strlen($matches[1]) ? $matches[1] : $Element['text']; $definition = strtolower($definition); $extent += strlen($matches[0]); } else { $definition = strtolower($Element['text']); } if ( ! isset($this->DefinitionData['Reference'][$definition])) { return; } $Definition = $this->DefinitionData['Reference'][$definition]; $Element['attributes']['href'] = $Definition['url']; $Element['attributes']['title'] = $Definition['title']; } $Element['attributes']['href'] = str_replace(array('&', '<'), array('&', '<'), $Element['attributes']['href']); return array( 'extent' => $extent, 'element' => $Element, ); } protected function inlineMarkup($Excerpt) { if ($this->markupEscaped or strpos($Excerpt['text'], '>') === false) { return; } if ($Excerpt['text'][1] === '/' and preg_match('/^<\/\w*[ ]*>/s', $Excerpt['text'], $matches)) { return array( 'markup' => $matches[0], 'extent' => strlen($matches[0]), ); } if ($Excerpt['text'][1] === '!' and preg_match('/^/s', $Excerpt['text'], $matches)) { return array( 'markup' => $matches[0], 'extent' => strlen($matches[0]), ); } if ($Excerpt['text'][1] !== ' ' and preg_match('/^<\w*(?:[ ]*'.$this->regexHtmlAttribute.')*[ ]*\//s', $Excerpt['text'], $matches)) { return array( 'markup' => $matches[0], 'extent' => strlen($matches[0]), ); } } protected function inlineSpecialCharacter($Excerpt) { if ($Excerpt['text'][0] === '&' and ! preg_match('/^&#?\w+;/', $Excerpt['text'])) { return array( 'markup' => '&', 'extent' => 1, ); } $SpecialCharacter = array('>' => 'gt', '<' => 'lt', '"' => 'quot'); if (isset($SpecialCharacter[$Excerpt['text'][0]])) { return array( 'markup' => '&'.$SpecialCharacter[$Excerpt['text'][0]].';', 'extent' => 1, ); } } protected function inlineStrikethrough($Excerpt) { if ( ! isset($Excerpt['text'][1])) { return; } if ($Excerpt['text'][1] === '~' and preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $Excerpt['text'], $matches)) { return array( 'extent' => strlen($matches[0]), 'element' => array( 'name' => 'del', 'text' => $matches[1], 'handler' => 'line', ), ); } } protected function inlineUrl($Excerpt) { if ($this->urlsLinked !== true or ! isset($Excerpt['text'][2]) or $Excerpt['text'][2] !== '/') { return; } if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE)) { $Inline = array( 'extent' => strlen($matches[0][0]), 'position' => $matches[0][1], 'element' => array( 'name' => 'a', 'text' => $matches[0][0], 'attributes' => array( 'href' => $matches[0][0], ), ), ); return $Inline; } } protected function inlineUrlTag($Excerpt) { if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\w+:\/{2}[^ >]+)>/i', $Excerpt['text'], $matches)) { $url = str_replace(array('&', '<'), array('&', '<'), $matches[1]); return array( 'extent' => strlen($matches[0]), 'element' => array( 'name' => 'a', 'text' => $url, 'attributes' => array( 'href' => $url, ), ), ); } } # ~ protected function unmarkedText($text) { if ($this->breaksEnabled) { $text = preg_replace('/[ ]*\n/', "
\n", $text); } else { $text = preg_replace('/(?:[ ][ ]+|[ ]*\\\\)\n/', "
\n", $text); $text = str_replace(" \n", "\n", $text); } return $text; } # # Handlers # protected function element(array $Element) { $markup = '<'.$Element['name']; if (isset($Element['attributes'])) { foreach ($Element['attributes'] as $name => $value) { if ($value === null) { continue; } $markup .= ' '.$name.'="'.$value.'"'; } } if (isset($Element['text'])) { $markup .= '>'; if (isset($Element['handler'])) { $markup .= $this->{$Element['handler']}($Element['text']); } else { $markup .= $Element['text']; } $markup .= ''; } else { $markup .= ' />'; } return $markup; } protected function elements(array $Elements) { $markup = ''; foreach ($Elements as $Element) { $markup .= "\n" . $this->element($Element); } $markup .= "\n"; return $markup; } # ~ protected function li($lines) { $markup = $this->lines($lines); $trimmedMarkup = trim($markup); if ( ! in_array('', $lines) and substr($trimmedMarkup, 0, 3) === '

') { $markup = $trimmedMarkup; $markup = substr($markup, 3); $position = strpos($markup, "

"); $markup = substr_replace($markup, '', $position, 4); } return $markup; } # # Deprecated Methods # function parse($text) { $markup = $this->text($text); return $markup; } # # Static Methods # static function instance($name = 'default') { if (isset(self::$instances[$name])) { return self::$instances[$name]; } $instance = new static(); self::$instances[$name] = $instance; return $instance; } private static $instances = array(); # # Fields # protected $DefinitionData; # # Read-Only protected $specialCharacters = array( '\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', '|', ); protected $StrongRegex = array( '*' => '/^[*]{2}((?:\\\\\*|[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s', '_' => '/^__((?:\\\\_|[^_]|_[^_]*_)+?)__(?!_)/us', ); protected $EmRegex = array( '*' => '/^[*]((?:\\\\\*|[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s', '_' => '/^_((?:\\\\_|[^_]|__[^_]*__)+?)_(?!_)\b/us', ); protected $regexHtmlAttribute = '[a-zA-Z_:][\w:.-]*(?:\s*=\s*(?:[^"\'=<>`\s]+|"[^"]*"|\'[^\']*\'))?'; protected $voidElements = array( 'area', 'base', 'br', 'col', 'command', 'embed', 'hr', 'img', 'input', 'link', 'meta', 'param', 'source', ); protected $textLevelElements = array( 'a', 'br', 'bdo', 'abbr', 'blink', 'nextid', 'acronym', 'basefont', 'b', 'em', 'big', 'cite', 'small', 'spacer', 'listing', 'i', 'rp', 'del', 'code', 'strike', 'marquee', 'q', 'rt', 'ins', 'font', 'strong', 's', 'tt', 'sub', 'mark', 'u', 'xm', 'sup', 'nobr', 'var', 'ruby', 'wbr', 'span', 'time', ); } # # # Parsedown Extra # https://github.com/erusev/parsedown-extra # # (c) Emanuil Rusev # http://erusev.com # # For the full license information, view the LICENSE file that was distributed # with this source code. # # class ParsedownExtra extends Parsedown { # ~ const version = '0.7.0'; # ~ function __construct() { if (parent::version < '1.5.0') { throw new Exception('ParsedownExtra requires a later version of Parsedown'); } $this->BlockTypes[':'] []= 'DefinitionList'; $this->BlockTypes['*'] []= 'Abbreviation'; # identify footnote definitions before reference definitions array_unshift($this->BlockTypes['['], 'Footnote'); # identify footnote markers before before links array_unshift($this->InlineTypes['['], 'FootnoteMarker'); } # # ~ function text($text) { $markup = parent::text($text); # merge consecutive dl elements $markup = preg_replace('/<\/dl>\s+

\s+/', '', $markup); # add footnotes if (isset($this->DefinitionData['Footnote'])) { $Element = $this->buildFootnoteElement(); $markup .= "\n" . $this->element($Element); } return $markup; } # # Blocks # # # Abbreviation protected function blockAbbreviation($Line) { if (preg_match('/^\*\[(.+?)\]:[ ]*(.+?)[ ]*$/', $Line['text'], $matches)) { $this->DefinitionData['Abbreviation'][$matches[1]] = $matches[2]; $Block = array( 'hidden' => true, ); return $Block; } } # # Footnote protected function blockFootnote($Line) { if (preg_match('/^\[\^(.+?)\]:[ ]?(.*)$/', $Line['text'], $matches)) { $Block = array( 'label' => $matches[1], 'text' => $matches[2], 'hidden' => true, ); return $Block; } } protected function blockFootnoteContinue($Line, $Block) { if ($Line['text'][0] === '[' and preg_match('/^\[\^(.+?)\]:/', $Line['text'])) { return; } if (isset($Block['interrupted'])) { if ($Line['indent'] >= 4) { $Block['text'] .= "\n\n" . $Line['text']; return $Block; } } else { $Block['text'] .= "\n" . $Line['text']; return $Block; } } protected function blockFootnoteComplete($Block) { $this->DefinitionData['Footnote'][$Block['label']] = array( 'text' => $Block['text'], 'count' => null, 'number' => null, ); return $Block; } # # Definition List protected function blockDefinitionList($Line, $Block) { if ( ! isset($Block) or isset($Block['type'])) { return; } $Element = array( 'name' => 'dl', 'handler' => 'elements', 'text' => array(), ); $terms = explode("\n", $Block['element']['text']); foreach ($terms as $term) { $Element['text'] []= array( 'name' => 'dt', 'handler' => 'line', 'text' => $term, ); } $Block['element'] = $Element; $Block = $this->addDdElement($Line, $Block); return $Block; } protected function blockDefinitionListContinue($Line, array $Block) { if ($Line['text'][0] === ':') { $Block = $this->addDdElement($Line, $Block); return $Block; } else { if (isset($Block['interrupted']) and $Line['indent'] === 0) { return; } if (isset($Block['interrupted'])) { $Block['dd']['handler'] = 'text'; $Block['dd']['text'] .= "\n\n"; unset($Block['interrupted']); } $text = substr($Line['body'], min($Line['indent'], 4)); $Block['dd']['text'] .= "\n" . $text; return $Block; } } # # Header protected function blockHeader($Line) { $Block = parent::blockHeader($Line); if (preg_match('/[ #]*{('.$this->regexAttribute.'+)}[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE)) { $attributeString = $matches[1][0]; $Block['element']['attributes'] = $this->parseAttributeData($attributeString); $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]); } return $Block; } # # Markup protected function blockMarkupComplete($Block) { if ( ! isset($Block['void'])) { $Block['markup'] = $this->processTag($Block['markup']); } return $Block; } # # Setext protected function blockSetextHeader($Line, array $Block = null) { $Block = parent::blockSetextHeader($Line, $Block); if (preg_match('/[ ]*{('.$this->regexAttribute.'+)}[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE)) { $attributeString = $matches[1][0]; $Block['element']['attributes'] = $this->parseAttributeData($attributeString); $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]); } return $Block; } # # Inline Elements # # # Footnote Marker protected function inlineFootnoteMarker($Excerpt) { if (preg_match('/^\[\^(.+?)\]/', $Excerpt['text'], $matches)) { $name = $matches[1]; if ( ! isset($this->DefinitionData['Footnote'][$name])) { return; } $this->DefinitionData['Footnote'][$name]['count'] ++; if ( ! isset($this->DefinitionData['Footnote'][$name]['number'])) { $this->DefinitionData['Footnote'][$name]['number'] = ++ $this->footnoteCount; # » & } $Element = array( 'name' => 'sup', 'attributes' => array('id' => 'fnref'.$this->DefinitionData['Footnote'][$name]['count'].':'.$name), 'handler' => 'element', 'text' => array( 'name' => 'a', 'attributes' => array('href' => '#fn:'.$name, 'class' => 'footnote-ref'), 'text' => $this->DefinitionData['Footnote'][$name]['number'], ), ); return array( 'extent' => strlen($matches[0]), 'element' => $Element, ); } } private $footnoteCount = 0; # # Link protected function inlineLink($Excerpt) { $Link = parent::inlineLink($Excerpt); $remainder = substr($Excerpt['text'], $Link['extent']); if (preg_match('/^[ ]*{('.$this->regexAttribute.'+)}/', $remainder, $matches)) { $Link['element']['attributes'] += $this->parseAttributeData($matches[1]); $Link['extent'] += strlen($matches[0]); } return $Link; } # # ~ # protected function unmarkedText($text) { $text = parent::unmarkedText($text); if (isset($this->DefinitionData['Abbreviation'])) { foreach ($this->DefinitionData['Abbreviation'] as $abbreviation => $meaning) { $pattern = '/\b'.preg_quote($abbreviation, '/').'\b/'; $text = preg_replace($pattern, ''.$abbreviation.'', $text); } } return $text; } # # Util Methods # protected function addDdElement(array $Line, array $Block) { $text = substr($Line['text'], 1); $text = trim($text); unset($Block['dd']); $Block['dd'] = array( 'name' => 'dd', 'handler' => 'line', 'text' => $text, ); if (isset($Block['interrupted'])) { $Block['dd']['handler'] = 'text'; unset($Block['interrupted']); } $Block['element']['text'] []= & $Block['dd']; return $Block; } protected function buildFootnoteElement() { $Element = array( 'name' => 'div', 'attributes' => array('class' => 'footnotes'), 'handler' => 'elements', 'text' => array( array( 'name' => 'hr', ), array( 'name' => 'ol', 'handler' => 'elements', 'text' => array(), ), ), ); uasort($this->DefinitionData['Footnote'], 'self::sortFootnotes'); foreach ($this->DefinitionData['Footnote'] as $definitionId => $DefinitionData) { if ( ! isset($DefinitionData['number'])) { continue; } $text = $DefinitionData['text']; $text = parent::text($text); $numbers = range(1, $DefinitionData['count']); $backLinksMarkup = ''; foreach ($numbers as $number) { $backLinksMarkup .= ' ↩'; } $backLinksMarkup = substr($backLinksMarkup, 1); if (substr($text, - 4) === '

') { $backLinksMarkup = ' '.$backLinksMarkup; $text = substr_replace($text, $backLinksMarkup.'

', - 4); } else { $text .= "\n".'

'.$backLinksMarkup.'

'; } $Element['text'][1]['text'] []= array( 'name' => 'li', 'attributes' => array('id' => 'fn:'.$definitionId), 'text' => "\n".$text."\n", ); } return $Element; } # ~ protected function parseAttributeData($attributeString) { $Data = array(); $attributes = preg_split('/[ ]+/', $attributeString, - 1, PREG_SPLIT_NO_EMPTY); foreach ($attributes as $attribute) { if ($attribute[0] === '#') { $Data['id'] = substr($attribute, 1); } else # "." { $classes []= substr($attribute, 1); } } if (isset($classes)) { $Data['class'] = implode(' ', $classes); } return $Data; } # ~ protected function processTag($elementMarkup) # recursive { # http://stackoverflow.com/q/1148928/200145 libxml_use_internal_errors(true); $DOMDocument = new DOMDocument; # http://stackoverflow.com/q/11309194/200145 $elementMarkup = mb_convert_encoding($elementMarkup, 'HTML-ENTITIES', 'UTF-8'); # http://stackoverflow.com/q/4879946/200145 $DOMDocument->loadHTML($elementMarkup); $DOMDocument->removeChild($DOMDocument->doctype); $DOMDocument->replaceChild($DOMDocument->firstChild->firstChild->firstChild, $DOMDocument->firstChild); $elementText = ''; if ($DOMDocument->documentElement->getAttribute('markdown') === '1') { foreach ($DOMDocument->documentElement->childNodes as $Node) { $elementText .= $DOMDocument->saveHTML($Node); } $DOMDocument->documentElement->removeAttribute('markdown'); $elementText = "\n".$this->text($elementText)."\n"; } else { foreach ($DOMDocument->documentElement->childNodes as $Node) { $nodeMarkup = $DOMDocument->saveHTML($Node); if ($Node instanceof DOMElement and ! in_array($Node->nodeName, $this->textLevelElements)) { $elementText .= $this->processTag($nodeMarkup); } else { $elementText .= $nodeMarkup; } } } # because we don't want for markup to get encoded $DOMDocument->documentElement->nodeValue = 'placeholder'; $markup = $DOMDocument->saveHTML($DOMDocument->documentElement); $markup = str_replace('placeholder', $elementText, $markup); return $markup; } # ~ protected function sortFootnotes($A, $B) # callback { return $A['number'] - $B['number']; } # # Fields # protected $regexAttribute = '(?:[#.][-\w]+[ ]*)'; } // %next_module% // // Execute each module's code foreach($modules as $moduledata) { $moduledata["code"](); } // Make sure that the credits page exists if(!isset($actions->credits)) { exit(page_renderer::render_main("Error - $settings->$sitename", "

No credits page detected. The credits page is a required module!

")); } // Perform the appropriate action $action_name = $env->action; if(isset($actions->$action_name)) { $req_action_data = $actions->$action_name; $req_action_data(); } else { exit(page_renderer::render_main("Error - $settings->sitename", "

No action called " . strtolower($_GET["action"]) ." has been registered. Perhaps you are missing a module?

")); } ?>