diff --git a/var/ParsedownExtra.php b/var/ParsedownExtra.php new file mode 100644 index 00000000..3e25120e --- /dev/null +++ b/var/ParsedownExtra.php @@ -0,0 +1,1822 @@ +Definitions = array(); + + # standardize line breaks + $text = str_replace("\r\n", "\n", $text); + $text = str_replace("\r", "\n", $text); + + # replace tabs with spaces + $text = str_replace("\t", ' ', $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 + # + + private $breaksEnabled; + + function setBreaksEnabled($breaksEnabled) + { + $this->breaksEnabled = $breaksEnabled; + + return $this; + } + + # + # Lines + # + + protected $BlockTypes = array( + '#' => array('Atx'), + '*' => array('Rule', 'List'), + '+' => array('List'), + '-' => array('Setext', '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('Setext'), + '>' => array('Quote'), + '_' => array('Rule'), + '`' => array('FencedCode'), + '|' => array('Table'), + '~' => array('FencedCode'), + ); + + # ~ + + protected $DefinitionTypes = array( + '[' => array('Reference'), + ); + + # ~ + + protected $unmarkedBlockTypes = array( + 'CodeBlock', + ); + + # + # Blocks + # + + private function lines(array $lines) + { + $CurrentBlock = null; + + foreach ($lines as $line) + { + if (chop($line) === '') + { + if (isset($CurrentBlock)) + { + $CurrentBlock['interrupted'] = true; + } + + continue; + } + + $indent = 0; + + while (isset($line[$indent]) and $line[$indent] === ' ') + { + $indent ++; + } + + $text = $indent > 0 ? substr($line, $indent) : $line; + + # ~ + + $Line = array('body' => $line, 'indent' => $indent, 'text' => $text); + + # ~ + + if (isset($CurrentBlock['incomplete'])) + { + $Block = $this->{'addTo'.$CurrentBlock['type']}($Line, $CurrentBlock); + + if (isset($Block)) + { + $CurrentBlock = $Block; + + continue; + } + else + { + if (method_exists($this, 'complete'.$CurrentBlock['type'])) + { + $CurrentBlock = $this->{'complete'.$CurrentBlock['type']}($CurrentBlock); + } + + unset($CurrentBlock['incomplete']); + } + } + + # ~ + + $marker = $text[0]; + + if (isset($this->DefinitionTypes[$marker])) + { + foreach ($this->DefinitionTypes[$marker] as $definitionType) + { + $Definition = $this->{'identify'.$definitionType}($Line, $CurrentBlock); + + if (isset($Definition)) + { + $this->Definitions[$definitionType][$Definition['id']] = $Definition['data']; + + continue 2; + } + } + } + + # ~ + + $blockTypes = $this->unmarkedBlockTypes; + + if (isset($this->BlockTypes[$marker])) + { + foreach ($this->BlockTypes[$marker] as $blockType) + { + $blockTypes []= $blockType; + } + } + + # + # ~ + + foreach ($blockTypes as $blockType) + { + $Block = $this->{'identify'.$blockType}($Line, $CurrentBlock); + + if (isset($Block)) + { + $Block['type'] = $blockType; + + if ( ! isset($Block['identified'])) + { + $Elements []= $CurrentBlock['element']; + + $Block['identified'] = true; + } + + if (method_exists($this, 'addTo'.$blockType)) + { + $Block['incomplete'] = true; + } + + $CurrentBlock = $Block; + + continue 2; + } + } + + # ~ + + if (isset($CurrentBlock) and ! isset($CurrentBlock['type']) and ! isset($CurrentBlock['interrupted'])) + { + $CurrentBlock['element']['text'] .= "\n".$text; + } + else + { + $Elements []= $CurrentBlock['element']; + + $CurrentBlock = $this->buildParagraph($Line); + + $CurrentBlock['identified'] = true; + } + } + + # ~ + + if (isset($CurrentBlock['incomplete']) and method_exists($this, 'complete'.$CurrentBlock['type'])) + { + $CurrentBlock = $this->{'complete'.$CurrentBlock['type']}($CurrentBlock); + } + + # ~ + + $Elements []= $CurrentBlock['element']; + + unset($Elements[0]); + + # ~ + + $markup = $this->elements($Elements); + + # ~ + + return $markup; + } + + # + # Atx + + protected function identifyAtx($Line) + { + if (isset($Line['text'][1])) + { + $level = 1; + + while (isset($Line['text'][$level]) and $Line['text'][$level] === '#') + { + $level ++; + } + + $text = trim($Line['text'], '# '); + + $Block = array( + 'element' => array( + 'name' => 'h' . min(6, $level), + 'text' => $text, + 'handler' => 'line', + ), + ); + + return $Block; + } + } + + # + # Code + + protected function identifyCodeBlock($Line) + { + if ($Line['indent'] >= 4) + { + $text = substr($Line['body'], 4); + + $Block = array( + 'element' => array( + 'name' => 'pre', + 'handler' => 'element', + 'text' => array( + 'name' => 'code', + 'text' => $text, + ), + ), + ); + + return $Block; + } + } + + protected function addToCodeBlock($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 $Block; + } + } + + protected function completeCodeBlock($Block) + { + $text = $Block['element']['text']['text']; + + $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8'); + + $Block['element']['text']['text'] = $text; + + return $Block; + } + + # + # Comment + + protected function identifyComment($Line) + { + if (isset($Line['text'][3]) and $Line['text'][3] === '-' and $Line['text'][2] === '-' and $Line['text'][1] === '!') + { + $Block = array( + 'element' => $Line['body'], + ); + + if (preg_match('/-->$/', $Line['text'])) + { + $Block['closed'] = true; + } + + return $Block; + } + } + + protected function addToComment($Line, array $Block) + { + if (isset($Block['closed'])) + { + return; + } + + $Block['element'] .= "\n" . $Line['body']; + + if (preg_match('/-->$/', $Line['text'])) + { + $Block['closed'] = true; + } + + return $Block; + } + + # + # Fenced Code + + protected function identifyFencedCode($Line) + { + if (preg_match('/^(['.$Line['text'][0].']{3,})[ ]*([\w-]+)?[ ]*$/', $Line['text'], $matches)) + { + $Element = array( + 'name' => 'code', + 'text' => '', + ); + + if (isset($matches[2])) + { + $class = 'language-'.$matches[2]; + + $Element['attributes'] = array( + 'class' => $class, + ); + } + + $Block = array( + 'char' => $Line['text'][0], + 'element' => array( + 'name' => 'pre', + 'handler' => 'element', + 'text' => $Element, + ), + ); + + return $Block; + } + } + + protected function addToFencedCode($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 $Block; + } + + protected function completeFencedCode($Block) + { + $text = $Block['element']['text']['text']; + + $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8'); + + $Block['element']['text']['text'] = $text; + + return $Block; + } + + # + # List + + protected function identifyList($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 $Block; + } + } + + protected function addToList($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']); + + $Block['li'] = array( + 'name' => 'li', + 'handler' => 'li', + 'text' => array( + $matches[1], + ), + ); + + $Block['element']['text'] []= & $Block['li']; + + 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 $Block; + } + } + + # + # Quote + + protected function identifyQuote($Line) + { + if (preg_match('/^>[ ]?(.*)/', $Line['text'], $matches)) + { + $Block = array( + 'element' => array( + 'name' => 'blockquote', + 'handler' => 'lines', + 'text' => (array) $matches[1], + ), + ); + + return $Block; + } + } + + protected function addToQuote($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 $Block; + } + } + + # + # Rule + + protected function identifyRule($Line) + { + if (preg_match('/^(['.$Line['text'][0].'])([ ]{0,2}\1){2,}[ ]*$/', $Line['text'])) + { + $Block = array( + 'element' => array( + 'name' => 'hr' + ), + ); + + return $Block; + } + } + + # + # Setext + + protected function identifySetext($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 $Block; + } + } + + # + # Markup + + protected function identifyMarkup($Line) + { + if (preg_match('/^<(\w[\w\d]*)(?:[ ][^>]*)?(\/?)[ ]*>/', $Line['text'], $matches)) + { + if (in_array($matches[1], $this->textLevelElements)) + { + return; + } + + $Block = array( + 'element' => $Line['body'], + ); + + if ($matches[2] or $matches[1] === 'hr' or preg_match('/<\/'.$matches[1].'>[ ]*$/', $Line['text'])) + { + $Block['closed'] = true; + } + else + { + $Block['depth'] = 0; + $Block['name'] = $matches[1]; + } + + return $Block; + } + } + + protected function addToMarkup($Line, array $Block) + { + if (isset($Block['closed'])) + { + return; + } + + if (preg_match('/<'.$Block['name'].'([ ][^\/]+)?>/', $Line['text'])) # opening tag + { + $Block['depth'] ++; + } + + if (stripos($Line['text'], '') !== false) # closing tag + { + if ($Block['depth'] > 0) + { + $Block['depth'] --; + } + else + { + $Block['closed'] = true; + } + } + + $Block['element'] .= "\n".$Line['body']; + + return $Block; + } + + # + # Table + + protected function identifyTable($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( + '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 $Block; + } + } + + protected function addToTable($Line, array $Block) + { + if ($Line['text'][0] === '|' or strpos($Line['text'], '|')) + { + $Elements = array(); + + $row = $Line['text']; + + $row = trim($row); + $row = trim($row, '|'); + + $cells = explode('|', $row); + + foreach ($cells as $index => $cell) + { + $cell = trim($cell); + + $Element = array( + 'name' => 'td', + 'handler' => 'line', + 'text' => $cell, + ); + + if (isset($Block['alignments'][$index])) + { + $Element['attributes'] = array( + 'align' => $Block['alignments'][$index], + ); + } + + $Elements []= $Element; + } + + $Element = array( + 'name' => 'tr', + 'handler' => 'elements', + 'text' => $Elements, + ); + + $Block['element']['text'][1]['text'] []= $Element; + + return $Block; + } + } + + # + # Definitions + # + + protected function identifyReference($Line) + { + if (preg_match('/^\[(.+?)\]:[ ]*?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $Line['text'], $matches)) + { + $Definition = array( + 'id' => strtolower($matches[1]), + 'data' => array( + 'url' => $matches[2], + ), + ); + + if (isset($matches[3])) + { + $Definition['data']['title'] = $matches[3]; + } + + return $Definition; + } + } + + # + # ~ + # + + protected function buildParagraph($Line) + { + $Block = array( + 'element' => array( + 'name' => 'p', + 'text' => $Line['text'], + 'handler' => 'line', + ), + ); + + return $Block; + } + + # + # ~ + # + + protected function element(array $Element) + { + $markup = '<'.$Element['name']; + + if (isset($Element['attributes'])) + { + foreach ($Element['attributes'] as $name => $value) + { + $markup .= ' '.$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 $Element) + { + if ($Element === null) + { + continue; + } + + $markup .= "\n"; + + if (is_string($Element)) # because of Markup + { + $markup .= $Element; + + continue; + } + + $markup .= $this->element($Element); + } + + $markup .= "\n"; + + return $markup; + } + + # + # Spans + # + + protected $SpanTypes = array( + '!' => array('Link'), # ? + '&' => array('Ampersand'), + '*' => array('Emphasis'), + '/' => array('Url'), + '<' => array('UrlTag', 'EmailTag', 'Tag', 'LessThan'), + '[' => array('Link'), + '_' => array('Emphasis'), + '`' => array('InlineCode'), + '~' => array('Strikethrough'), + '\\' => array('EscapeSequence'), + ); + + # ~ + + protected $spanMarkerList = '*_!&[spanMarkerList)) + { + $marker = $excerpt[0]; + + $markerPosition += strpos($remainder, $marker); + + $Excerpt = array('text' => $excerpt, 'context' => $text); + + foreach ($this->SpanTypes[$marker] as $spanType) + { + $handler = 'identify'.$spanType; + + $Span = $this->$handler($Excerpt); + + if ( ! isset($Span)) + { + continue; + } + + # The identified span can be ahead of the marker. + + if (isset($Span['position']) and $Span['position'] > $markerPosition) + { + continue; + } + + # Spans that start at the position of their marker don't have to set a position. + + if ( ! isset($Span['position'])) + { + $Span['position'] = $markerPosition; + } + + $plainText = substr($text, 0, $Span['position']); + + $markup .= $this->readPlainText($plainText); + + $markup .= isset($Span['markup']) ? $Span['markup'] : $this->element($Span['element']); + + $text = substr($text, $Span['position'] + $Span['extent']); + + $remainder = $text; + + $markerPosition = 0; + + continue 2; + } + + $remainder = substr($excerpt, 1); + + $markerPosition ++; + } + + $markup .= $this->readPlainText($text); + + return $markup; + } + + # + # ~ + # + + protected function identifyUrl($Excerpt) + { + if ( ! isset($Excerpt['text'][1]) or $Excerpt['text'][1] !== '/') + { + return; + } + + if (preg_match('/\bhttps?:[\/]{2}[^\s<]+\b\/*/ui', $Excerpt['context'], $matches, PREG_OFFSET_CAPTURE)) + { + $url = str_replace(array('&', '<'), array('&', '<'), $matches[0][0]); + + return array( + 'extent' => strlen($matches[0][0]), + 'position' => $matches[0][1], + 'element' => array( + 'name' => 'a', + 'text' => $url, + 'attributes' => array( + 'href' => $url, + ), + ), + ); + } + } + + protected function identifyAmpersand($Excerpt) + { + if ( ! preg_match('/^&#?\w+;/', $Excerpt['text'])) + { + return array( + 'markup' => '&', + 'extent' => 1, + ); + } + } + + protected function identifyStrikethrough($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' => $matches[1], + 'handler' => 'line', + ), + ); + } + } + + protected function identifyEscapeSequence($Excerpt) + { + if (isset($Excerpt['text'][1]) and in_array($Excerpt['text'][1], $this->specialCharacters)) + { + return array( + 'markup' => $Excerpt['text'][1], + 'extent' => 2, + ); + } + } + + protected function identifyLessThan() + { + return array( + 'markup' => '<', + 'extent' => 1, + ); + } + + protected function identifyUrlTag($Excerpt) + { + if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(https?:[\/]{2}[^\s]+?)>/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' => $url, + ), + ), + ); + } + } + + protected function identifyEmailTag($Excerpt) + { + if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<(\S+?@\S+?)>/', $Excerpt['text'], $matches)) + { + return array( + 'extent' => strlen($matches[0]), + 'element' => array( + 'name' => 'a', + 'text' => $matches[1], + 'attributes' => array( + 'href' => 'mailto:'.$matches[1], + ), + ), + ); + } + } + + protected function identifyTag($Excerpt) + { + if (strpos($Excerpt['text'], '>') !== false and preg_match('/^<\/?\w.*?>/', $Excerpt['text'], $matches)) + { + return array( + 'markup' => $matches[0], + 'extent' => strlen($matches[0]), + ); + } + } + + protected function identifyInlineCode($Excerpt) + { + $marker = $Excerpt['text'][0]; + + if (preg_match('/^('.$marker.'+)[ ]*(.+?)[ ]*(? strlen($matches[0]), + 'element' => array( + 'name' => 'code', + 'text' => $text, + ), + ); + } + } + + protected function identifyLink($Excerpt) + { + $extent = $Excerpt['text'][0] === '!' ? 1 : 0; + + if (strpos($Excerpt['text'], ']') and preg_match('/\[((?:[^][]|(?R))*)\]/', $Excerpt['text'], $matches)) + { + $Link = array('text' => $matches[1], 'label' => strtolower($matches[1])); + + $extent += strlen($matches[0]); + + $substring = substr($Excerpt['text'], $extent); + + if (preg_match('/^\s*\[([^][]+)\]/', $substring, $matches)) + { + $Link['label'] = strtolower($matches[1]); + + if (isset($this->Definitions['Reference'][$Link['label']])) + { + $Link += $this->Definitions['Reference'][$Link['label']]; + + $extent += strlen($matches[0]); + } + else + { + return; + } + } + elseif (isset($this->Definitions['Reference'][$Link['label']])) + { + $Link += $this->Definitions['Reference'][$Link['label']]; + + if (preg_match('/^[ ]*\[\]/', $substring, $matches)) + { + $extent += strlen($matches[0]); + } + } + elseif (preg_match('/^\([ ]*(.*?)(?:[ ]+[\'"](.+?)[\'"])?[ ]*\)/', $substring, $matches)) + { + $Link['url'] = $matches[1]; + + if (isset($matches[2])) + { + $Link['title'] = $matches[2]; + } + + $extent += strlen($matches[0]); + } + else + { + return; + } + } + else + { + return; + } + + $url = str_replace(array('&', '<'), array('&', '<'), $Link['url']); + + if ($Excerpt['text'][0] === '!') + { + $Element = array( + 'name' => 'img', + 'attributes' => array( + 'alt' => $Link['text'], + 'src' => $url, + ), + ); + } + else + { + $Element = array( + 'name' => 'a', + 'handler' => 'line', + 'text' => $Link['text'], + 'attributes' => array( + 'href' => $url, + ), + ); + } + + if (isset($Link['title'])) + { + $Element['attributes']['title'] = $Link['title']; + } + + return array( + 'extent' => $extent, + 'element' => $Element, + ); + } + + protected function identifyEmphasis($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' => $matches[1], + ), + ); + } + + # + # ~ + + protected function readPlainText($text) + { + $breakMarker = $this->breaksEnabled ? "\n" : " \n"; + + $text = str_replace($breakMarker, "
\n", $text); + + return $text; + } + + # + # ~ + # + + protected function li($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 $markup; + } + + # + # Multiton + # + + static function instance($name = 'default') + { + if (isset(self::$instances[$name])) + { + return self::$instances[$name]; + } + + $instance = new self(); + + self::$instances[$name] = $instance; + + return $instance; + } + + private static $instances = array(); + + # + # Deprecated Methods + # + + /** + * @deprecated in favor of "text" + */ + function parse($text) + { + $markup = $this->text($text); + + return $markup; + } + + # + # Fields + # + + protected $Definitions; + + # + # Read-only + + protected $specialCharacters = array( + '\\', '`', '*', '_', '{', '}', '[', ']', '(', ')', '>', '#', '+', '-', '.', '!', + ); + + protected $StrongRegex = array( + '*' => '/^[*]{2}((?:[^*]|[*][^*]*[*])+?)[*]{2}(?![*])/s', + '_' => '/^__((?:[^_]|_[^_]*_)+?)__(?!_)/us', + ); + + protected $EmRegex = array( + '*' => '/^[*]((?:[^*]|[*][*][^*]+?[*][*])+?)[*](?![*])/s', + '_' => '/^_((?:[^_]|__[^_]*__)+?)_(?!_)\b/us', + ); + + 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 +{ + # + # ~ + + function __construct() + { + $this->BlockTypes[':'] []= 'DefinitionList'; + + $this->DefinitionTypes['*'] []= 'Abbreviation'; + + # identify footnote definitions before reference definitions + array_unshift($this->DefinitionTypes['['], 'Footnote'); + + # identify footnote markers before before links + array_unshift($this->SpanTypes['['], 'FootnoteMarker'); + } + + # + # ~ + + function text($text) + { + $markup = parent::text($text); + + # merge consecutive dl elements + + $markup = preg_replace('/<\/dl>\s+
\s+/', '', $markup); + + # add footnotes + + if (isset($this->Definitions['Footnote'])) + { + $Element = $this->buildFootnoteElement(); + + $markup .= "\n" . $this->element($Element); + } + + return $markup; + } + + # + # Blocks + # + + # + # Atx + + protected function identifyAtx($Line) + { + $Block = parent::identifyAtx($Line); + + if (preg_match('/[ ]*'.$this->attributesPattern.'[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE)) + { + $attributeString = $matches[1][0]; + + $Block['element']['attributes'] = $this->parseAttributes($attributeString); + + $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]); + } + + return $Block; + } + + # + # Definition List + + protected function identifyDefinitionList($Line, $Block) + { + if (isset($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, + ); + } + + $Element['text'] []= array( + 'name' => 'dd', + 'handler' => 'line', + 'text' => ltrim($Line['text'], ' :'), + ); + + $Block['element'] = $Element; + + return $Block; + } + + protected function addToDefinitionList($Line, array $Block) + { + if ($Line['text'][0] === ':') + { + $Block['element']['text'] []= array( + 'name' => 'dd', + 'handler' => 'line', + 'text' => ltrim($Line['text'], ' :'), + ); + + return $Block; + } + + if ( ! isset($Block['interrupted'])) + { + $Element = array_pop($Block['element']['text']); + + $Element['text'] .= "\n" . chop($Line['text']); + + $Block['element']['text'] []= $Element; + + return $Block; + } + } + + # + # Setext + + protected function identifySetext($Line, array $Block = null) + { + $Block = parent::identifySetext($Line, $Block); + + if (preg_match('/[ ]*'.$this->attributesPattern.'[ ]*$/', $Block['element']['text'], $matches, PREG_OFFSET_CAPTURE)) + { + $attributeString = $matches[1][0]; + + $Block['element']['attributes'] = $this->parseAttributes($attributeString); + + $Block['element']['text'] = substr($Block['element']['text'], 0, $matches[0][1]); + } + + return $Block; + } + + # + # Markup + + protected function completeMarkup($Block) + { + $DOMDocument = new DOMDocument; + + $DOMDocument->loadXML($Block['element'], LIBXML_NOERROR | LIBXML_NOWARNING); + + if ($DOMDocument->documentElement === null) + { + return $Block; + } + + $result = $DOMDocument->documentElement->getAttribute('markdown'); + + if ($result !== '1') + { + return $Block; + } + + $DOMDocument->documentElement->removeAttribute('markdown'); + + $index = 0; + $texts = array(); + + foreach ($DOMDocument->documentElement->childNodes as $Node) + { + if ($Node instanceof DOMText) + { + $texts [] = $this->text($Node->nodeValue); + + # replaces the text of the node with a placeholder + $Node->nodeValue = '\x1A'.$index ++; + } + } + + $markup = $DOMDocument->saveXML($DOMDocument->documentElement); + + foreach ($texts as $index => $text) + { + $markup = str_replace('\x1A'.$index, $text, $markup); + } + + $Block['element'] = $markup; + + return $Block; + } + + # + # Definitions + # + + # + # Abbreviation + + protected function identifyAbbreviation($Line) + { + if (preg_match('/^\*\[(.+?)\]:[ ]*(.+?)[ ]*$/', $Line['text'], $matches)) + { + $Abbreviation = array( + 'id' => $matches[1], + 'data' => $matches[2], + ); + + return $Abbreviation; + } + } + + # + # Footnote + + protected function identifyFootnote($Line) + { + if (preg_match('/^\[\^(.+?)\]:[ ]?(.+)$/', $Line['text'], $matches)) + { + $Footnote = array( + 'id' => $matches[1], + 'data' => array( + 'text' => $matches[2], + 'count' => null, + 'number' => null, + ), + ); + + return $Footnote; + } + } + + # + # Spans + # + + # + # Footnote Marker + + protected function identifyFootnoteMarker($Excerpt) + { + if (preg_match('/^\[\^(.+?)\]/', $Excerpt['text'], $matches)) + { + $name = $matches[1]; + + if ( ! isset($this->Definitions['Footnote'][$name])) + { + return; + } + + $this->Definitions['Footnote'][$name]['count'] ++; + + if ( ! isset($this->Definitions['Footnote'][$name]['number'])) + { + $this->Definitions['Footnote'][$name]['number'] = ++ $this->footnoteCount; # » & + } + + $Element = array( + 'name' => 'sup', + 'attributes' => array('id' => 'fnref'.$this->Definitions['Footnote'][$name]['count'].':'.$name), + 'handler' => 'element', + 'text' => array( + 'name' => 'a', + 'attributes' => array('href' => '#fn:'.$name, 'class' => 'footnote-ref'), + 'text' => $this->Definitions['Footnote'][$name]['number'], + ), + ); + + return array( + 'extent' => strlen($matches[0]), + 'element' => $Element, + ); + } + } + + private $footnoteCount = 0; + + # + # Link + + protected function identifyLink($Excerpt) + { + $Span = parent::identifyLink($Excerpt); + + $remainder = substr($Excerpt['text'], $Span['extent']); + + if (preg_match('/^[ ]*'.$this->attributesPattern.'/', $remainder, $matches)) + { + $Span['element']['attributes'] += $this->parseAttributes($matches[1]); + + $Span['extent'] += strlen($matches[0]); + } + + return $Span; + } + + # + # ~ + + protected function readPlainText($text) + { + $text = parent::readPlainText($text); + + if (isset($this->Definitions['Abbreviation'])) + { + foreach ($this->Definitions['Abbreviation'] as $abbreviation => $phrase) + { + $text = str_replace($abbreviation, ''.$abbreviation.'', $text); + } + } + + return $text; + } + + # + # ~ + # + + protected function buildFootnoteElement() + { + $Element = array( + 'name' => 'div', + 'attributes' => array('class' => 'footnotes'), + 'handler' => 'elements', + 'text' => array( + array( + 'name' => 'hr', + ), + array( + 'name' => 'ol', + 'handler' => 'elements', + 'text' => array(), + ), + ), + ); + + usort($this->Definitions['Footnote'], function($A, $B) { + return $A['number'] - $B['number']; + }); + + foreach ($this->Definitions['Footnote'] as $name => $Data) + { + if ( ! isset($Data['number'])) + { + continue; + } + + $text = $Data['text']; + + foreach (range(1, $Data['count']) as $number) + { + $text .= ' ↩'; + } + + $Element['text'][1]['text'] []= array( + 'name' => 'li', + 'attributes' => array('id' => 'fn:'.$name), + 'handler' => 'elements', + 'text' => array( + array( + 'name' => 'p', + 'text' => $text, + ), + ), + ); + } + + return $Element; + } + + # + # Private + # + + private function parseAttributes($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; + } + + private $attributesPattern = '{((?:[#.][-\w]+[ ]*)+)}'; +} + diff --git a/var/Typecho/Common/Paragraph.php b/var/Typecho/AutoP.php similarity index 65% rename from var/Typecho/Common/Paragraph.php rename to var/Typecho/AutoP.php index f750adbd..ac7e6435 100644 --- a/var/Typecho/Common/Paragraph.php +++ b/var/Typecho/AutoP.php @@ -1,31 +1,24 @@ * @license GNU General Public License 2.0 */ -class Typecho_Common_Paragraph +class AutoP { + // 作为段落的标签 + const BLOCK = 'p|pre|div|blockquote|form|ul|ol|dd|table|ins|h1|h2|h3|h4|h5|h6'; + /** * 唯一id * * @access private * @var integer */ - private static $_uniqueId = 0; + private $_uniqueId = 0; /** * 存储的段落 @@ -33,18 +26,7 @@ class Typecho_Common_Paragraph * @access private * @var array */ - private static $_blocks = array(); - - /** - * 作为段落看待的标签 - * - * (default value: 'p|code|pre|div|blockquote|form|ul|ol|dd|table|h1|h2|h3|h4|h5|h6') - * - * @var string - * @access private - * @static - */ - private static $_blockTag = 'p|code|pre|div|blockquote|form|ul|ol|dd|table|h1|h2|h3|h4|h5|h6'; + private $_blocks = array(); /** * 生成唯一的id, 为了速度考虑最多支持1万个tag的处理 @@ -52,11 +34,11 @@ class Typecho_Common_Paragraph * @access private * @return string */ - private static function makeUniqueId() + private function makeUniqueId() { - return ':' . str_pad(self::$_uniqueId ++, 4, '0', STR_PAD_LEFT); + return ':' . str_pad($this->_uniqueId ++, 4, '0', STR_PAD_LEFT); } - + /** * 用段落方法处理换行 * @@ -64,18 +46,20 @@ class Typecho_Common_Paragraph * @param string $text * @return string */ - private static function cutByBlock($text) + private function cutByBlock($text) { $space = "( |　)"; - $text = str_replace("\r\n", "\n", trim($text)); $text = preg_replace("/{$space}*\n{$space}*/is", "\n", $text); + $text = preg_replace("/\s*\s*/is", "

", $text); $text = preg_replace("/\n{2,}/", "

", $text); $text = nl2br($text); - $text = preg_replace("/(

)?\s*\s*(<\/p>)?/s", "", $text); + $text = preg_replace("/(

)?\s*\s*(<\/p>)?/is", "", $text); $text = preg_replace("/

{$space}*<\/p>/is", '', $text); + $text = preg_replace("/\s*

\s*$/is", '', $text); + $text = preg_replace("/^\s*<\/p>\s*/is", '', $text); return $text; } - + /** * 修复段落开头和结尾 * @@ -83,20 +67,20 @@ class Typecho_Common_Paragraph * @param string $text * @return string */ - private static function fixPragraph($text) + private function fixPragraph($text) { $text = trim($text); - if (!preg_match("/^<(" . self::$_blockTag . ")(\s|>)/i", $text)) { + if (!preg_match("/^<(" . self::BLOCK . ")(\s|>)/i", $text)) { $text = '

' . $text; } - if (!preg_match("/<\/(" . self::$_blockTag . ")>$/i", $text)) { + if (!preg_match("/<\/(" . self::BLOCK . ")>$/i", $text)) { $text = $text . '

'; } return $text; } - + /** * 替换段落的回调函数 * @@ -104,21 +88,21 @@ class Typecho_Common_Paragraph * @param array $matches 匹配值 * @return string */ - public static function replaceBlockCallback($matches) + public function replaceBlockCallback($matches) { $tagMatch = '|' . $matches[1] . '|'; $text = $matches[4]; switch (true) { /** 用br处理换行 */ - case false !== strpos('|li|dd|dt|td|p|a|span|cite|strong|sup|sub|small|del|u|i|b|h1|h2|h3|h4|h5|h6|', $tagMatch): + case false !== strpos('|li|dd|dt|td|p|a|span|code|cite|strong|sup|sub|small|del|u|i|b|ins|h1|h2|h3|h4|h5|h6|', $tagMatch): $text = nl2br(trim($text)); break; /** 用段落处理换行 */ case false !== strpos('|div|blockquote|form|', $tagMatch): - $text = self::cutByBlock($text); + $text = $this->cutByBlock($text); if (false !== strpos($text, '

')) { - $text = self::fixPragraph($text); + $text = $this->fixPragraph($text); } break; default: @@ -126,32 +110,30 @@ class Typecho_Common_Paragraph } /** 没有段落能力的标签 */ - if (false !== strpos('|a|span|cite|strong|sup|sub|small|del|u|i|b|', $tagMatch)) { + if (false !== strpos('|a|span|code|cite|strong|sup|sub|small|del|u|i|b|', $tagMatch)) { $key = ''; } else { $key = ''; } - self::$_blocks[$key] = "<{$matches[1]}{$matches[3]}>{$text}"; + $this->_blocks[$key] = "<{$matches[1]}{$matches[3]}>{$text}"; return $key; } /** - * 处理文本 + * 自动分段 * - * @access public - * @param string $text 文本 + * @param string $text + * @static + * @access private * @return string */ - public static function process($text) + public function parse($text) { - /** 锁定标签 */ - $text = Typecho_Common::lockHTML($text); - /** 重置计数器 */ - self::$_uniqueId = 0; - self::$_blocks = array(); - + $this->_uniqueId = 0; + $this->_blocks = array(); + /** 将已有的段落后面的换行处理掉 */ $text = preg_replace(array("/<\/p>\s+\s*/is"), array("

"), trim($text)); @@ -159,7 +141,7 @@ class Typecho_Common_Paragraph $foundTagCount = 0; $textLength = strlen($text); $uniqueIdList = array(); - + if (preg_match_all("/<\/\s*([a-z0-9]+)>/is", $text, $matches, PREG_OFFSET_CAPTURE)) { foreach ($matches[0] as $key => $match) { $tag = $matches[1][$key][0]; @@ -184,7 +166,7 @@ class Typecho_Common_Paragraph } if (false !== $pos) { - $uniqueId = self::makeUniqueId(); + $uniqueId = $this->makeUniqueId(); $uniqueIdList[$uniqueId] = $tag; $tagLength = strlen($tag); @@ -197,19 +179,17 @@ class Typecho_Common_Paragraph foreach ($uniqueIdList as $uniqueId => $tag) { $text = preg_replace_callback("/<({$tag})({$uniqueId})([^>]*)>(.*)<\/\\1\\2>/is", - array('Typecho_Common_Paragraph', 'replaceBlockCallback'), $text, 1); + array($this, 'replaceBlockCallback'), $text, 1); } - $text = self::cutByBlock($text); - $blocks = array_reverse(self::$_blocks); + $text = $this->cutByBlock($text); + $blocks = array_reverse($this->_blocks); foreach ($blocks as $blockKey => $blockValue) { $text = str_replace($blockKey, $blockValue, $text); } - $text = self::fixPragraph($text); - - /** 释放标签 */ - return Typecho_Common::releaseHTML($text); + return $this->fixPragraph($text); } } + diff --git a/var/Typecho/Common.php b/var/Typecho/Common.php index d855e828..d89638e2 100644 --- a/var/Typecho/Common.php +++ b/var/Typecho/Common.php @@ -24,14 +24,6 @@ class Typecho_Common /** 程序版本 */ const VERSION = '1.0/14.9.2'; - /** - * 锁定的代码块 - * - * @access private - * @var array - */ - private static $_lockedBlocks = array('

' => ''); - /** * 允许的属性 * @@ -56,19 +48,6 @@ class Typecho_Common */ public static $exceptionHandle; - /** - * 锁定标签回调函数 - * - * @access private - * @param array $matches 匹配的值 - * @return string - */ - public static function __lockHTML(array $matches) - { - $guid = '' . uniqid(time()) . ''; - self::$_lockedBlocks[$guid] = $matches[0]; - return $guid; - } /** * 将url中的非法xss去掉时的数组回调过滤函数 @@ -828,71 +807,6 @@ EOF; return substr($str, 0, $maxLength); } - /** - * 去掉html中的分段 - * - * @access public - * @param string $html 输入串 - * @return string - */ - public static function removeParagraph($html) - { - /** 锁定标签 */ - $html = self::lockHTML($html); - $html = str_replace(array("\r", "\n"), '', $html); - - $html = trim(preg_replace( - array("/\s*

(.*?)<\/p>\s*/is", "/\s*\s*/is", - "/\s*<(div|blockquote|pre|code|script|table|fieldset|ol|ul|dl|h[1-6])([^>]*)>/is", - "/<\/(div|blockquote|pre|code|script|table|fieldset|ol|ul|dl|h[1-6])>\s*/is", "/\s*<\!--more-->\s*/is"), - array("\n\\1\n", "\n", "\n\n<\\1\\2>", "\n\n", "\n\n\n\n"), - $html)); - - return trim(self::releaseHTML($html)); - } - - /** - * 锁定标签 - * - * @access public - * @param string $html 输入串 - * @return string - */ - public static function lockHTML($html) - { - return preg_replace_callback("/<(code|pre|script)[^>]*>.*?<\/\\1>/is", array('Typecho_Common', '__lockHTML'), $html); - } - - /** - * 释放标签 - * - * @access public - * @param string $html 输入串 - * @return string - */ - public static function releaseHTML($html) - { - $html = trim(str_replace(array_keys(self::$_lockedBlocks), array_values(self::$_lockedBlocks), $html)); - self::$_lockedBlocks = array('

' => ''); - return $html; - } - - /** - * 文本分段函数 - * - * @param string $string 需要分段的字符串 - * @return string - */ - public static function cutParagraph($string) - { - static $loaded; - if (!$loaded) { - $loaded = true; - } - - return Typecho_Common_Paragraph::process($string); - } - /** * 生成随机字符串 * diff --git a/var/Widget/Abstract/Comments.php b/var/Widget/Abstract/Comments.php index 94aa0bd3..b7d626c9 100644 --- a/var/Widget/Abstract/Comments.php +++ b/var/Widget/Abstract/Comments.php @@ -113,7 +113,7 @@ class Widget_Abstract_Comments extends Widget_Abstract $text = $this->pluginHandle(__CLASS__)->trigger($plugged)->content($text, $this); if (!$plugged) { $text = $this->options->commentsMarkdown ? $this->markdown($text) - : Typecho_Common::cutParagraph($text); + : $this->autoP($text); } $text = $this->pluginHandle(__CLASS__)->contentEx($text, $this); @@ -439,6 +439,30 @@ class Widget_Abstract_Comments extends Widget_Abstract echo Typecho_Common::subStr(strip_tags($this->content), 0, $length, $trim); } + /** + * autoP + * + * @param mixed $text + * @access public + * @return void + */ + public function autoP($text) + { + $html = $this->pluginHandle(__CLASS__)->trigger($parsed)->autoP($text); + + if (!$parsed) { + static $parser; + + if (empty($parser)) { + $parser = new AutoP(); + } + + $html = $parser->parse($text); + } + + return $html; + } + /** * markdown * @@ -451,8 +475,13 @@ class Widget_Abstract_Comments extends Widget_Abstract $html = $this->pluginHandle(__CLASS__)->trigger($parsed)->markdown($text); if (!$parsed) { - $parser = new ParsedownExtra(); - $parser->setBreaksEnabled(true); + static $parser; + + if (empty($parser)) { + $parser = new ParsedownExtra(); + $parser->setBreaksEnabled(true); + } + $html = $parser->text($text); } diff --git a/var/Widget/Abstract/Contents.php b/var/Widget/Abstract/Contents.php index 9f0a9855..81232f2a 100644 --- a/var/Widget/Abstract/Contents.php +++ b/var/Widget/Abstract/Contents.php @@ -110,7 +110,7 @@ class Widget_Abstract_Contents extends Widget_Abstract $content = $this->pluginHandle(__CLASS__)->trigger($plugged)->excerpt($this->text, $this); if (!$plugged) { $content = $this->isMarkdown ? $this->markdown($content) - : Typecho_Common::cutParagraph($content); + : $this->autoP($content); } $contents = explode('', $content); @@ -135,7 +135,7 @@ class Widget_Abstract_Contents extends Widget_Abstract if (!$plugged) { $content = $this->isMarkdown ? $this->markdown($content) - : Typecho_Common::cutParagraph($content); + : $this->autoP($content); } return $this->pluginHandle(__CLASS__)->contentEx($content, $this); @@ -923,6 +923,30 @@ class Widget_Abstract_Contents extends Widget_Abstract echo $this->author->{$item}; } + /** + * autoP + * + * @param mixed $text + * @access public + * @return void + */ + public function autoP($text) + { + $html = $this->pluginHandle(__CLASS__)->trigger($parsed)->autoP($text); + + if (!$parsed) { + static $parser; + + if (empty($parser)) { + $parser = new AutoP(); + } + + $html = $parser->parse($text); + } + + return $html; + } + /** * markdown * @@ -935,8 +959,13 @@ class Widget_Abstract_Contents extends Widget_Abstract $html = $this->pluginHandle(__CLASS__)->trigger($parsed)->markdown($text); if (!$parsed) { - $parser = new ParsedownExtra(); - $parser->setBreaksEnabled(true); + static $parser; + + if (empty($parser)) { + $parser = new ParsedownExtra(); + $parser->setBreaksEnabled(true); + } + $html = $parser->text($text); }