| <?php |
| |
| # |
| # |
| # 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 = '1.6.0'; |
| |
| # ~ |
| |
| 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 |
| # |
| |
| protected 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 = $Block; |
| |
| continue; |
| } |
| else |
| { |
| if ($this->isBlockCompletable($CurrentBlock['type'])) |
| { |
| $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; |
| |
| $Block['identified'] = true; |
| } |
| |
| if ($this->isBlockContinuable($blockType)) |
| { |
| $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 $this->isBlockCompletable($CurrentBlock['type'])) |
| { |
| $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 $markup; |
| } |
| |
| protected function isBlockContinuable($Type) |
| { |
| return method_exists($this, 'block'.$Type.'Continue'); |
| } |
| |
| protected function isBlockCompletable($Type) |
| { |
| return method_exists($this, 'block'.$Type.'Complete'); |
| } |
| |
| # |
| # Code |
| |
| protected function blockCode($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('/^\[(.+?)\]:[ ]*<?(\S+?)>?(?:[ ]+["\'(](.+)["\')])?[ ]*$/', $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.'+)[ ]*(.+?)[ ]*(?<!'.$marker.')\1(?!'.$marker.')/s', $Excerpt['text'], $matches)) |
| { |
| $text = $matches[2]; |
| $text = htmlspecialchars($text, ENT_NOQUOTES, 'UTF-8'); |
| $text = preg_replace("/[ ]*\n/", ' ', $text); |
| |
| return array( |
| 'extent' => strlen($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/', "<br />\n", $text); |
| } |
| else |
| { |
| $text = preg_replace('/(?:[ ][ ]+|[ ]*\\\\)\n/', "<br />\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']; |
| } |
| |
| $markup .= '</'.$Element['name'].'>'; |
| } |
| 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) === '<p>') |
| { |
| $markup = $trimmedMarkup; |
| $markup = substr($markup, 3); |
| |
| $position = strpos($markup, "</p>"); |
| |
| $markup = substr_replace($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', |
| ); |
| } |
