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<?php |
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# |
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# |
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# Parsedown |
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# http://parsedown.org |
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# |
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# (c) Emanuil Rusev |
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# http://erusev.com |
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# |
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# For the full license information, please view the LICENSE file that was |
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# distributed with this source code. |
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# |
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# |
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/** |
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* Class Parsedown |
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*/ |
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class Parsedown |
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{ |
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# |
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# Multiton (http://en.wikipedia.org/wiki/Multiton_pattern) |
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# |
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/** |
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* @param string $name |
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* @return mixed|Parsedown |
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*/ |
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public static function instance($name = 'default') |
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{ |
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if (isset(self::$instances[$name])) { |
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return self::$instances[$name]; |
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} |
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$instance = new self(); |
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self::$instances[$name] = $instance; |
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return $instance; |
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} |
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private static $instances = []; |
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# |
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# Setters |
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# |
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private $break_marker = " \n"; |
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/** |
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* @param $breaks_enabled |
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* @return $this |
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*/ |
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public function set_breaks_enabled($breaks_enabled) |
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{ |
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$this->break_marker = $breaks_enabled ? "\n" : " \n"; |
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return $this; |
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} |
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# |
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# Fields |
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# |
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private $reference_map = []; |
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private $escape_sequence_map = []; |
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# |
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# Public Methods |
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# |
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/** |
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* @param $text |
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* @return mixed|string |
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*/ |
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public function parse($text) |
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{ |
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# removes \r characters |
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$text = str_replace("\r\n", "\n", $text); |
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$text = str_replace("\r", "\n", $text); |
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# replaces tabs with spaces |
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$text = str_replace("\t", ' ', $text); |
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# encodes escape sequences |
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if (false !== mb_strpos($text, '\\')) { |
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$escape_sequences = ['\\\\', '\`', '\*', '\_', '\{', '\}', '\[', '\]', '\(', '\)', '\>', '\#', '\+', '\-', '\.', '\!']; |
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foreach ($escape_sequences as $index => $escape_sequence) { |
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if (false !== mb_strpos($text, $escape_sequence)) { |
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$code = "\x1A" . '\\' . $index . ';'; |
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$text = str_replace($escape_sequence, $code, $text); |
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$this->escape_sequence_map[$code] = $escape_sequence; |
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} |
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} |
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} |
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# ~ |
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$text = trim($text, "\n"); |
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$lines = explode("\n", $text); |
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$text = $this->parse_block_elements($lines); |
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# decodes escape sequences |
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foreach ($this->escape_sequence_map as $code => $escape_sequence) { |
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$text = str_replace($code, $escape_sequence[1], $text); |
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} |
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# ~ |
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$text = rtrim($text, "\n"); |
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return $text; |
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} |
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# |
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# Private Methods |
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# |
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/** |
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* @param array $lines |
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* @param string $context |
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* @return string |
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*/ |
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private function parse_block_elements(array $lines, $context = '') |
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{ |
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$elements = []; |
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$element = [ |
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'type' => '', |
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]; |
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foreach ($lines as $line) { |
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# fenced elements |
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switch ($element['type']) { |
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case 'fenced block': |
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if (!isset($element['closed'])) { |
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if (preg_match('/^[ ]*' . $element['fence'][0] . '{3,}[ ]*$/', $line)) { |
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$element['closed'] = true; |
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} else { |
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'' !== $element['text'] and $element['text'] .= "\n"; |
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$element['text'] .= $line; |
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} |
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continue 2; |
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} |
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break; |
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case 'block-level markup': |
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if (!isset($element['closed'])) { |
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if (false !== mb_strpos($line, $element['start'])) { # opening tag |
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$element['depth']++; |
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} |
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if (false !== mb_strpos($line, $element['end'])) { # closing tag |
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$element['depth'] > 0 ? $element['depth']-- : $element['closed'] = true; |
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} |
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$element['text'] .= "\n" . $line; |
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continue 2; |
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} |
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break; |
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} |
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# * |
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$deindented_line = ltrim($line); |
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if ('' === $deindented_line) { |
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$element['interrupted'] = true; |
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continue; |
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} |
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# composite elements |
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switch ($element['type']) { |
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case 'blockquote': |
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if (!isset($element['interrupted'])) { |
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$line = preg_replace('/^[ ]*>[ ]?/', '', $line); |
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$element['lines'] [] = $line; |
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continue 2; |
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} |
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break; |
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case 'li': |
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if (preg_match('/^([ ]{0,3})(\d+[.]|[*+-])[ ](.*)/', $line, $matches)) { |
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if ($element['indentation'] !== $matches[1]) { |
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$element['lines'] [] = $line; |
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} else { |
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unset($element['last']); |
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$elements [] = $element; |
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$element = [ |
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'type' => 'li', |
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'indentation' => $matches[1], |
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'last' => true, |
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'lines' => [ |
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preg_replace('/^[ ]{0,4}/', '', $matches[3]), |
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], |
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]; |
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} |
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continue 2; |
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} |
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if (isset($element['interrupted'])) { |
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if (' ' === $line[0]) { |
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$element['lines'] [] = ''; |
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$line = preg_replace('/^[ ]{0,4}/', '', $line); |
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$element['lines'] [] = $line; |
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unset($element['interrupted']); |
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continue 2; |
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} |
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} else { |
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$line = preg_replace('/^[ ]{0,4}/', '', $line); |
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$element['lines'] [] = $line; |
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continue 2; |
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} |
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break; |
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} |
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# indentation sensitive types |
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switch ($line[0]) { |
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case ' ': |
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# code block |
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if (isset($line[3]) and ' ' === $line[3] and ' ' === $line[2] and ' ' === $line[1]) { |
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$code_line = mb_substr($line, 4); |
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if ('code block' === $element['type']) { |
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if (isset($element['interrupted'])) { |
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$element['text'] .= "\n"; |
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unset($element['interrupted']); |
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} |
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$element['text'] .= "\n" . $code_line; |
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} else { |
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$elements [] = $element; |
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$element = [ |
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'type' => 'code block', |
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'text' => $code_line, |
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]; |
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} |
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continue 2; |
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} |
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break; |
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case '#': |
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# atx heading (#) |
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if (isset($line[1])) { |
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$elements [] = $element; |
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$level = 1; |
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while (isset($line[$level]) and '#' === $line[$level]) { |
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++$level; |
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} |
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$element = [ |
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'type' => 'heading', |
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'text' => trim($line, '# '), |
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'level' => $level, |
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]; |
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continue 2; |
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} |
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break; |
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case '-': |
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case '=': |
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# setext heading |
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if ('paragraph' === $element['type'] and false === isset($element['interrupted'])) { |
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$chopped_line = rtrim($line); |
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$i = 1; |
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while (isset($chopped_line[$i])) { |
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if ($chopped_line[$i] !== $line[0]) { |
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break 2; |
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} |
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++$i; |
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} |
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$element['type'] = 'heading'; |
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$element['level'] = '-' === $line[0] ? 2 : 1; |
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322
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continue 2; |
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} |
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325
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break; |
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} |
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327
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328
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# indentation insensitive types |
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329
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330
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switch ($deindented_line[0]) { |
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case '<': |
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333
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$position = mb_strpos($deindented_line, '>'); |
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335
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if ($position > 1) { # tag |
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$name = mb_substr($deindented_line, 1, $position - 1); |
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337
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$name = rtrim($name); |
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338
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339
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if ('/' === mb_substr($name, -1)) { |
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$self_closing = true; |
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341
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342
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$name = mb_substr($name, 0, -1); |
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} |
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345
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$position = mb_strpos($name, ' '); |
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346
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347
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if ($position) { |
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348
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$name = mb_substr($name, 0, $position); |
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} |
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350
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351
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if (!ctype_alpha($name)) { |
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break; |
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353
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} |
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354
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355
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if (in_array($name, $this->inline_tags, true)) { |
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356
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break; |
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357
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|
|
} |
|
358
|
|
|
|
|
359
|
|
|
$elements [] = $element; |
|
360
|
|
|
|
|
361
|
|
|
if (isset($self_closing)) { |
|
362
|
|
|
$element = [ |
|
363
|
|
|
'type' => 'self-closing tag', |
|
364
|
|
|
'text' => $deindented_line, |
|
365
|
|
|
]; |
|
366
|
|
|
|
|
367
|
|
|
unset($self_closing); |
|
368
|
|
|
|
|
369
|
|
|
continue 2; |
|
370
|
|
|
} |
|
371
|
|
|
|
|
372
|
|
|
$element = [ |
|
373
|
|
|
'type' => 'block-level markup', |
|
374
|
|
|
'text' => $deindented_line, |
|
375
|
|
|
'start' => '<' . $name . '>', |
|
376
|
|
|
'end' => '</' . $name . '>', |
|
377
|
|
|
'depth' => 0, |
|
378
|
|
|
]; |
|
379
|
|
|
|
|
380
|
|
|
if (mb_strpos($deindented_line, $element['end'])) { |
|
381
|
|
|
$element['closed'] = true; |
|
382
|
|
|
} |
|
383
|
|
|
|
|
384
|
|
|
continue 2; |
|
385
|
|
|
} |
|
386
|
|
|
|
|
387
|
|
|
break; |
|
388
|
|
|
case '>': |
|
389
|
|
|
|
|
390
|
|
|
# quote |
|
391
|
|
|
|
|
392
|
|
|
if (preg_match('/^>[ ]?(.*)/', $deindented_line, $matches)) { |
|
393
|
|
|
$elements [] = $element; |
|
394
|
|
|
|
|
395
|
|
|
$element = [ |
|
396
|
|
|
'type' => 'blockquote', |
|
397
|
|
|
'lines' => [ |
|
398
|
|
|
$matches[1], |
|
399
|
|
|
], |
|
400
|
|
|
]; |
|
401
|
|
|
|
|
402
|
|
|
continue 2; |
|
403
|
|
|
} |
|
404
|
|
|
|
|
405
|
|
|
break; |
|
406
|
|
|
case '[': |
|
407
|
|
|
|
|
408
|
|
|
# reference |
|
409
|
|
|
|
|
410
|
|
|
if (preg_match('/^\[(.+?)\]:[ ]*(.+?)(?:[ ]+[\'"](.+?)[\'"])?[ ]*$/', $deindented_line, $matches)) { |
|
411
|
|
|
$label = mb_strtolower($matches[1]); |
|
412
|
|
|
|
|
413
|
|
|
$this->reference_map[$label] = [ |
|
414
|
|
|
'»' => trim($matches[2], '<>'), |
|
415
|
|
|
]; |
|
416
|
|
|
|
|
417
|
|
|
if (isset($matches[3])) { |
|
418
|
|
|
$this->reference_map[$label]['#'] = $matches[3]; |
|
419
|
|
|
} |
|
420
|
|
|
|
|
421
|
|
|
continue 2; |
|
422
|
|
|
} |
|
423
|
|
|
|
|
424
|
|
|
break; |
|
425
|
|
|
case '`': |
|
426
|
|
|
case '~': |
|
427
|
|
|
|
|
428
|
|
|
# fenced code block |
|
429
|
|
|
|
|
430
|
|
|
if (preg_match('/^([`]{3,}|[~]{3,})[ ]*(\S+)?[ ]*$/', $deindented_line, $matches)) { |
|
431
|
|
|
$elements [] = $element; |
|
432
|
|
|
|
|
433
|
|
|
$element = [ |
|
434
|
|
|
'type' => 'fenced block', |
|
435
|
|
|
'text' => '', |
|
436
|
|
|
'fence' => $matches[1], |
|
437
|
|
|
]; |
|
438
|
|
|
|
|
439
|
|
|
isset($matches[2]) and $element['language'] = $matches[2]; |
|
440
|
|
|
|
|
441
|
|
|
continue 2; |
|
442
|
|
|
} |
|
443
|
|
|
|
|
444
|
|
|
break; |
|
445
|
|
|
case '*': |
|
446
|
|
|
case '+': |
|
447
|
|
|
case '-': |
|
448
|
|
|
case '_': |
|
449
|
|
|
|
|
450
|
|
|
# hr |
|
451
|
|
|
|
|
452
|
|
|
if (preg_match('/^([-*_])([ ]{0,2}\1){2,}[ ]*$/', $deindented_line)) { |
|
453
|
|
|
$elements [] = $element; |
|
454
|
|
|
|
|
455
|
|
|
$element = [ |
|
456
|
|
|
'type' => 'hr', |
|
457
|
|
|
]; |
|
458
|
|
|
|
|
459
|
|
|
continue 2; |
|
460
|
|
|
} |
|
461
|
|
|
|
|
462
|
|
|
# li |
|
463
|
|
|
|
|
464
|
|
|
if (preg_match('/^([ ]*)[*+-][ ](.*)/', $line, $matches)) { |
|
465
|
|
|
$elements [] = $element; |
|
466
|
|
|
|
|
467
|
|
|
$element = [ |
|
468
|
|
|
'type' => 'li', |
|
469
|
|
|
'ordered' => false, |
|
470
|
|
|
'indentation' => $matches[1], |
|
471
|
|
|
'last' => true, |
|
472
|
|
|
'lines' => [ |
|
473
|
|
|
preg_replace('/^[ ]{0,4}/', '', $matches[2]), |
|
474
|
|
|
], |
|
475
|
|
|
]; |
|
476
|
|
|
|
|
477
|
|
|
continue 2; |
|
478
|
|
|
} |
|
479
|
|
|
} |
|
480
|
|
|
|
|
481
|
|
|
# li |
|
482
|
|
|
|
|
483
|
|
|
if ($deindented_line[0] <= '9' and $deindented_line[0] >= '0' and preg_match('/^([ ]*)\d+[.][ ](.*)/', $line, $matches)) { |
|
484
|
|
|
$elements [] = $element; |
|
485
|
|
|
|
|
486
|
|
|
$element = [ |
|
487
|
|
|
'type' => 'li', |
|
488
|
|
|
'ordered' => true, |
|
489
|
|
|
'indentation' => $matches[1], |
|
490
|
|
|
'last' => true, |
|
491
|
|
|
'lines' => [ |
|
492
|
|
|
preg_replace('/^[ ]{0,4}/', '', $matches[2]), |
|
493
|
|
|
], |
|
494
|
|
|
]; |
|
495
|
|
|
|
|
496
|
|
|
continue; |
|
497
|
|
|
} |
|
498
|
|
|
|
|
499
|
|
|
# paragraph |
|
500
|
|
|
|
|
501
|
|
|
if ('paragraph' === $element['type']) { |
|
502
|
|
|
if (isset($element['interrupted'])) { |
|
503
|
|
|
$elements [] = $element; |
|
504
|
|
|
|
|
505
|
|
|
$element['text'] = $line; |
|
506
|
|
|
|
|
507
|
|
|
unset($element['interrupted']); |
|
508
|
|
|
} else { |
|
509
|
|
|
$element['text'] .= "\n" . $line; |
|
510
|
|
|
} |
|
511
|
|
|
} else { |
|
512
|
|
|
$elements [] = $element; |
|
513
|
|
|
|
|
514
|
|
|
$element = [ |
|
515
|
|
|
'type' => 'paragraph', |
|
516
|
|
|
'text' => $line, |
|
517
|
|
|
]; |
|
518
|
|
|
} |
|
519
|
|
|
} |
|
520
|
|
|
|
|
521
|
|
|
$elements [] = $element; |
|
522
|
|
|
|
|
523
|
|
|
unset($elements[0]); |
|
524
|
|
|
|
|
525
|
|
|
# |
|
526
|
|
|
# ~ |
|
527
|
|
|
# |
|
528
|
|
|
|
|
529
|
|
|
$markup = ''; |
|
530
|
|
|
|
|
531
|
|
|
foreach ($elements as $element) { |
|
532
|
|
|
switch ($element['type']) { |
|
533
|
|
|
case 'paragraph': |
|
534
|
|
|
|
|
535
|
|
|
$text = $this->parse_span_elements($element['text']); |
|
536
|
|
|
|
|
537
|
|
|
if ('li' === $context and '' === $markup) { |
|
538
|
|
|
if (isset($element['interrupted'])) { |
|
539
|
|
|
$markup .= "\n" . '<p>' . $text . '</p>' . "\n"; |
|
540
|
|
|
} else { |
|
541
|
|
|
$markup .= $text; |
|
542
|
|
|
} |
|
543
|
|
|
} else { |
|
544
|
|
|
$markup .= '<p>' . $text . '</p>' . "\n"; |
|
545
|
|
|
} |
|
546
|
|
|
|
|
547
|
|
|
break; |
|
548
|
|
|
case 'blockquote': |
|
549
|
|
|
|
|
550
|
|
|
$text = $this->parse_block_elements($element['lines']); |
|
551
|
|
|
|
|
552
|
|
|
$markup .= '<blockquote>' . "\n" . $text . '</blockquote>' . "\n"; |
|
553
|
|
|
|
|
554
|
|
|
break; |
|
555
|
|
|
case 'code block': |
|
556
|
|
|
|
|
557
|
|
|
$text = htmlspecialchars($element['text'], ENT_QUOTES | ENT_NOQUOTES, 'UTF-8'); |
|
558
|
|
|
|
|
559
|
|
|
false !== mb_strpos($text, "\x1A\\") and $text = strtr($text, $this->escape_sequence_map); |
|
560
|
|
|
|
|
561
|
|
|
$markup .= isset($element['language']) ? '<pre><code class="language-' . $element['language'] . '">' . $text . '</code></pre>' : '<pre><code>' . $text . '</code></pre>'; |
|
562
|
|
|
|
|
563
|
|
|
$markup .= "\n"; |
|
564
|
|
|
|
|
565
|
|
|
break; |
|
566
|
|
|
case 'fenced block': |
|
567
|
|
|
|
|
568
|
|
|
$text = $element['text']; |
|
569
|
|
|
|
|
570
|
|
|
false !== mb_strpos($text, "\x1A\\") and $text = strtr($text, $this->escape_sequence_map); |
|
571
|
|
|
|
|
572
|
|
|
$markup .= rex_highlight_string($text, true) . "\n"; |
|
|
|
|
|
|
573
|
|
|
|
|
574
|
|
|
$markup .= "\n"; |
|
575
|
|
|
|
|
576
|
|
|
break; |
|
577
|
|
|
case 'heading': |
|
578
|
|
|
|
|
579
|
|
|
$text = $this->parse_span_elements($element['text']); |
|
580
|
|
|
|
|
581
|
|
|
$markup .= '<h' . $element['level'] . '>' . $text . '</h' . $element['level'] . '>' . "\n"; |
|
582
|
|
|
|
|
583
|
|
|
break; |
|
584
|
|
|
case 'hr': |
|
585
|
|
|
|
|
586
|
|
|
$markup .= '<hr >' . "\n"; |
|
587
|
|
|
|
|
588
|
|
|
break; |
|
589
|
|
|
case 'li': |
|
590
|
|
|
|
|
591
|
|
|
if (isset($element['ordered'])) { # first |
|
592
|
|
|
$list_type = $element['ordered'] ? 'ol' : 'ul'; |
|
593
|
|
|
|
|
594
|
|
|
$markup .= '<' . $list_type . '>' . "\n"; |
|
595
|
|
|
} |
|
596
|
|
|
|
|
597
|
|
|
if (isset($element['interrupted']) and !isset($element['last'])) { |
|
598
|
|
|
$element['lines'] [] = ''; |
|
599
|
|
|
} |
|
600
|
|
|
|
|
601
|
|
|
$text = $this->parse_block_elements($element['lines'], 'li'); |
|
602
|
|
|
|
|
603
|
|
|
$markup .= '<li>' . $text . '</li>' . "\n"; |
|
604
|
|
|
|
|
605
|
|
|
isset($element['last']) and $markup .= '</' . $list_type . '>' . "\n"; |
|
|
|
|
|
|
606
|
|
|
|
|
607
|
|
|
break; |
|
608
|
|
|
case 'block-level markup': |
|
609
|
|
|
|
|
610
|
|
|
$markup .= $element['text'] . "\n"; |
|
611
|
|
|
|
|
612
|
|
|
break; |
|
613
|
|
|
default: |
|
614
|
|
|
|
|
615
|
|
|
$markup .= $element['text'] . "\n"; |
|
616
|
|
|
} |
|
617
|
|
|
} |
|
618
|
|
|
|
|
619
|
|
|
return $markup; |
|
620
|
|
|
} |
|
621
|
|
|
|
|
622
|
|
|
/** |
|
623
|
|
|
* @param $text |
|
624
|
|
|
* @param array $markers |
|
625
|
|
|
* @return string |
|
626
|
|
|
*/ |
|
627
|
|
|
private function parse_span_elements($text, $markers = ['![', '&', '*', '<', '[', '_', '`', 'http', '~~']) |
|
628
|
|
|
{ |
|
629
|
|
|
if (false === isset($text[2]) or $markers === []) { |
|
630
|
|
|
return $text; |
|
631
|
|
|
} |
|
632
|
|
|
|
|
633
|
|
|
# ~ |
|
634
|
|
|
|
|
635
|
|
|
$markup = ''; |
|
636
|
|
|
|
|
637
|
|
|
while ($markers) { |
|
|
|
|
|
|
638
|
|
|
$closest_marker = null; |
|
639
|
|
|
$closest_marker_index = 0; |
|
640
|
|
|
$closest_marker_position = null; |
|
641
|
|
|
|
|
642
|
|
|
foreach ($markers as $index => $marker) { |
|
643
|
|
|
$marker_position = mb_strpos($text, $marker); |
|
644
|
|
|
|
|
645
|
|
|
if (false === $marker_position) { |
|
646
|
|
|
unset($markers[$index]); |
|
647
|
|
|
|
|
648
|
|
|
continue; |
|
649
|
|
|
} |
|
650
|
|
|
|
|
651
|
|
|
if (null === $closest_marker or $marker_position < $closest_marker_position) { |
|
652
|
|
|
$closest_marker = $marker; |
|
653
|
|
|
$closest_marker_index = $index; |
|
654
|
|
|
$closest_marker_position = $marker_position; |
|
655
|
|
|
} |
|
656
|
|
|
} |
|
657
|
|
|
|
|
658
|
|
|
# ~ |
|
659
|
|
|
|
|
660
|
|
|
if (null === $closest_marker or false === isset($text[$closest_marker_position + 2])) { |
|
661
|
|
|
$markup .= $text; |
|
662
|
|
|
|
|
663
|
|
|
break; |
|
664
|
|
|
} |
|
665
|
|
|
$markup .= mb_substr($text, 0, $closest_marker_position); |
|
666
|
|
|
|
|
667
|
|
|
$text = mb_substr($text, $closest_marker_position); |
|
|
|
|
|
|
668
|
|
|
|
|
669
|
|
|
# ~ |
|
670
|
|
|
|
|
671
|
|
|
unset($markers[$closest_marker_index]); |
|
672
|
|
|
|
|
673
|
|
|
# ~ |
|
674
|
|
|
|
|
675
|
|
|
switch ($closest_marker) { |
|
676
|
|
|
case '![': |
|
677
|
|
|
case '[': |
|
678
|
|
|
|
|
679
|
|
|
if (mb_strpos($text, ']') and preg_match('/\[((?:[^][]|(?R))*)\]/', $text, $matches)) { |
|
680
|
|
|
$element = [ |
|
681
|
|
|
'!' => '!' === $text[0], |
|
682
|
|
|
'a' => $matches[1], |
|
683
|
|
|
]; |
|
684
|
|
|
|
|
685
|
|
|
$offset = mb_strlen($matches[0]); |
|
686
|
|
|
|
|
687
|
|
|
$element['!'] and ++$offset; |
|
688
|
|
|
|
|
689
|
|
|
$remaining_text = mb_substr($text, $offset); |
|
690
|
|
|
|
|
691
|
|
|
if ('(' === $remaining_text[0] and preg_match('/\([ ]*(.*?)(?:[ ]+[\'"](.+?)[\'"])?[ ]*\)/', $remaining_text, $matches)) { |
|
692
|
|
|
$element['»'] = $matches[1]; |
|
693
|
|
|
|
|
694
|
|
|
if (isset($matches[2])) { |
|
695
|
|
|
$element['#'] = $matches[2]; |
|
696
|
|
|
} |
|
697
|
|
|
|
|
698
|
|
|
$offset += mb_strlen($matches[0]); |
|
699
|
|
|
} elseif ($this->reference_map) { |
|
|
|
|
|
|
700
|
|
|
$reference = $element['a']; |
|
701
|
|
|
|
|
702
|
|
|
if (preg_match('/^\s*\[(.*?)\]/', $remaining_text, $matches)) { |
|
703
|
|
|
$reference = $matches[1] ?: $element['a']; |
|
704
|
|
|
|
|
705
|
|
|
$offset += mb_strlen($matches[0]); |
|
706
|
|
|
} |
|
707
|
|
|
|
|
708
|
|
|
$reference = mb_strtolower($reference); |
|
709
|
|
|
|
|
710
|
|
|
if (isset($this->reference_map[$reference])) { |
|
711
|
|
|
$element['»'] = $this->reference_map[$reference]['»']; |
|
712
|
|
|
|
|
713
|
|
|
if (isset($this->reference_map[$reference]['#'])) { |
|
714
|
|
|
$element['#'] = $this->reference_map[$reference]['#']; |
|
715
|
|
|
} |
|
716
|
|
|
} else { |
|
717
|
|
|
unset($element); |
|
718
|
|
|
} |
|
719
|
|
|
} else { |
|
720
|
|
|
unset($element); |
|
721
|
|
|
} |
|
722
|
|
|
} |
|
723
|
|
|
|
|
724
|
|
|
if (isset($element)) { |
|
725
|
|
|
$element['»'] = str_replace('&', '&', $element['»']); |
|
726
|
|
|
$element['»'] = str_replace('<', '<', $element['»']); |
|
727
|
|
|
|
|
728
|
|
|
if ($element['!']) { |
|
729
|
|
|
$markup .= '<img alt="' . $element['a'] . '" src="' . $element['»'] . '" >'; |
|
730
|
|
|
} else { |
|
731
|
|
|
$element['a'] = $this->parse_span_elements($element['a'], $markers); |
|
732
|
|
|
|
|
733
|
|
|
$markup .= isset($element['#']) ? '<a href="' . $element['»'] . '" title="' . $element['#'] . '">' . $element['a'] . '</a>' : '<a href="' . $element['»'] . '">' . $element['a'] . '</a>'; |
|
734
|
|
|
} |
|
735
|
|
|
|
|
736
|
|
|
unset($element); |
|
737
|
|
|
} else { |
|
738
|
|
|
$markup .= $closest_marker; |
|
739
|
|
|
|
|
740
|
|
|
$offset = '![' === $closest_marker ? 2 : 1; |
|
741
|
|
|
} |
|
742
|
|
|
|
|
743
|
|
|
break; |
|
744
|
|
|
case '&': |
|
745
|
|
|
|
|
746
|
|
|
if (preg_match('/^&#?\w+;/', $text, $matches)) { |
|
747
|
|
|
$markup .= $matches[0]; |
|
748
|
|
|
|
|
749
|
|
|
$offset = mb_strlen($matches[0]); |
|
750
|
|
|
} else { |
|
751
|
|
|
$markup .= '&'; |
|
752
|
|
|
|
|
753
|
|
|
$offset = 1; |
|
754
|
|
|
} |
|
755
|
|
|
|
|
756
|
|
|
break; |
|
757
|
|
|
case '*': |
|
758
|
|
|
case '_': |
|
759
|
|
|
|
|
760
|
|
|
if ($text[1] === $closest_marker and preg_match($this->strong_regex[$closest_marker], $text, $matches)) { |
|
761
|
|
|
$matches[1] = $this->parse_span_elements($matches[1], $markers); |
|
762
|
|
|
|
|
763
|
|
|
$markup .= '<strong>' . $matches[1] . '</strong>'; |
|
764
|
|
|
} elseif (preg_match($this->em_regex[$closest_marker], $text, $matches)) { |
|
765
|
|
|
$matches[1] = $this->parse_span_elements($matches[1], $markers); |
|
766
|
|
|
|
|
767
|
|
|
$markup .= '<em>' . $matches[1] . '</em>'; |
|
768
|
|
|
} elseif ($text[1] === $closest_marker and preg_match($this->strong_em_regex[$closest_marker], $text, $matches)) { |
|
769
|
|
|
$matches[2] = $this->parse_span_elements($matches[2], $markers); |
|
770
|
|
|
|
|
771
|
|
|
$matches[1] and $matches[1] = $this->parse_span_elements($matches[1], $markers); |
|
772
|
|
|
$matches[3] and $matches[3] = $this->parse_span_elements($matches[3], $markers); |
|
773
|
|
|
|
|
774
|
|
|
$markup .= '<strong>' . $matches[1] . '<em>' . $matches[2] . '</em>' . $matches[3] . '</strong>'; |
|
775
|
|
|
} elseif (preg_match($this->em_strong_regex[$closest_marker], $text, $matches)) { |
|
776
|
|
|
$matches[2] = $this->parse_span_elements($matches[2], $markers); |
|
777
|
|
|
|
|
778
|
|
|
$matches[1] and $matches[1] = $this->parse_span_elements($matches[1], $markers); |
|
779
|
|
|
$matches[3] and $matches[3] = $this->parse_span_elements($matches[3], $markers); |
|
780
|
|
|
|
|
781
|
|
|
$markup .= '<em>' . $matches[1] . '<strong>' . $matches[2] . '</strong>' . $matches[3] . '</em>'; |
|
782
|
|
|
} |
|
783
|
|
|
|
|
784
|
|
|
if (isset($matches) and $matches) { |
|
785
|
|
|
$offset = mb_strlen($matches[0]); |
|
786
|
|
|
} else { |
|
787
|
|
|
$markup .= $closest_marker; |
|
788
|
|
|
|
|
789
|
|
|
$offset = 1; |
|
790
|
|
|
} |
|
791
|
|
|
|
|
792
|
|
|
break; |
|
793
|
|
|
case '<': |
|
794
|
|
|
|
|
795
|
|
|
if (false !== mb_strpos($text, '>')) { |
|
796
|
|
|
if ('h' === $text[1] and preg_match('/^<(https?:[\/]{2}\S+?)>/i', $text, $matches)) { |
|
797
|
|
|
$element_url = $matches[1]; |
|
798
|
|
|
$element_url = str_replace('&', '&', $element_url); |
|
799
|
|
|
$element_url = str_replace('<', '<', $element_url); |
|
800
|
|
|
|
|
801
|
|
|
$markup .= '<a href="' . $element_url . '">' . $element_url . '</a>'; |
|
802
|
|
|
|
|
803
|
|
|
$offset = mb_strlen($matches[0]); |
|
804
|
|
|
} elseif (preg_match('/^<\/?\w.*?>/', $text, $matches)) { |
|
805
|
|
|
$markup .= $matches[0]; |
|
806
|
|
|
|
|
807
|
|
|
$offset = mb_strlen($matches[0]); |
|
808
|
|
|
} else { |
|
809
|
|
|
$markup .= '<'; |
|
810
|
|
|
|
|
811
|
|
|
$offset = 1; |
|
812
|
|
|
} |
|
813
|
|
|
} else { |
|
814
|
|
|
$markup .= '<'; |
|
815
|
|
|
|
|
816
|
|
|
$offset = 1; |
|
817
|
|
|
} |
|
818
|
|
|
|
|
819
|
|
|
break; |
|
820
|
|
|
case '`': |
|
821
|
|
|
|
|
822
|
|
|
if (preg_match('/^`(.+?)`/', $text, $matches)) { |
|
823
|
|
|
$element_text = $matches[1]; |
|
824
|
|
|
$element_text = htmlspecialchars($element_text, ENT_QUOTES | ENT_NOQUOTES, 'UTF-8'); |
|
825
|
|
|
|
|
826
|
|
|
if ($this->escape_sequence_map and false !== mb_strpos($element_text, "\x1A")) { |
|
827
|
|
|
$element_text = strtr($element_text, $this->escape_sequence_map); |
|
828
|
|
|
} |
|
829
|
|
|
|
|
830
|
|
|
$markup .= '<code>' . $element_text . '</code>'; |
|
831
|
|
|
|
|
832
|
|
|
$offset = mb_strlen($matches[0]); |
|
833
|
|
|
} else { |
|
834
|
|
|
$markup .= '`'; |
|
835
|
|
|
|
|
836
|
|
|
$offset = 1; |
|
837
|
|
|
} |
|
838
|
|
|
|
|
839
|
|
|
break; |
|
840
|
|
|
case 'http': |
|
841
|
|
|
|
|
842
|
|
|
if (preg_match('/^https?:[\/]{2}\S+\b/i', $text, $matches)) { |
|
843
|
|
|
$element_url = $matches[0]; |
|
844
|
|
|
$element_url = str_replace('&', '&', $element_url); |
|
845
|
|
|
$element_url = str_replace('<', '<', $element_url); |
|
846
|
|
|
|
|
847
|
|
|
$markup .= '<a href="' . $element_url . '">' . $element_url . '</a>'; |
|
848
|
|
|
|
|
849
|
|
|
$offset = mb_strlen($matches[0]); |
|
850
|
|
|
} else { |
|
851
|
|
|
$markup .= 'http'; |
|
852
|
|
|
|
|
853
|
|
|
$offset = 4; |
|
854
|
|
|
} |
|
855
|
|
|
|
|
856
|
|
|
break; |
|
857
|
|
|
case '~~': |
|
858
|
|
|
|
|
859
|
|
|
if (preg_match('/^~~(?=\S)(.+?)(?<=\S)~~/', $text, $matches)) { |
|
860
|
|
|
$matches[1] = $this->parse_span_elements($matches[1], $markers); |
|
861
|
|
|
|
|
862
|
|
|
$markup .= '<del>' . $matches[1] . '</del>'; |
|
863
|
|
|
|
|
864
|
|
|
$offset = mb_strlen($matches[0]); |
|
865
|
|
|
} else { |
|
866
|
|
|
$markup .= '~~'; |
|
867
|
|
|
|
|
868
|
|
|
$offset = 2; |
|
869
|
|
|
} |
|
870
|
|
|
|
|
871
|
|
|
break; |
|
872
|
|
|
} |
|
873
|
|
|
|
|
874
|
|
|
if (isset($offset)) { |
|
875
|
|
|
$text = mb_substr($text, $offset); |
|
876
|
|
|
} |
|
877
|
|
|
|
|
878
|
|
|
$markers[$closest_marker_index] = $closest_marker; |
|
879
|
|
|
} |
|
880
|
|
|
|
|
881
|
|
|
$markup = str_replace($this->break_marker, '<br >' . "\n", $markup); |
|
882
|
|
|
|
|
883
|
|
|
return $markup; |
|
884
|
|
|
} |
|
885
|
|
|
|
|
886
|
|
|
# |
|
887
|
|
|
# Read-only |
|
888
|
|
|
# |
|
889
|
|
|
|
|
890
|
|
|
private $inline_tags = [ |
|
891
|
|
|
'a', |
|
892
|
|
|
'abbr', |
|
893
|
|
|
'acronym', |
|
894
|
|
|
'b', |
|
895
|
|
|
'bdo', |
|
896
|
|
|
'big', |
|
897
|
|
|
'br', |
|
898
|
|
|
'button', |
|
899
|
|
|
'cite', |
|
900
|
|
|
'code', |
|
901
|
|
|
'dfn', |
|
902
|
|
|
'em', |
|
903
|
|
|
'i', |
|
904
|
|
|
'img', |
|
905
|
|
|
'input', |
|
906
|
|
|
'kbd', |
|
907
|
|
|
'label', |
|
908
|
|
|
'map', |
|
909
|
|
|
'object', |
|
910
|
|
|
'q', |
|
911
|
|
|
'samp', |
|
912
|
|
|
'script', |
|
913
|
|
|
'select', |
|
914
|
|
|
'small', |
|
915
|
|
|
'span', |
|
916
|
|
|
'strong', |
|
917
|
|
|
'sub', |
|
918
|
|
|
'sup', |
|
919
|
|
|
'textarea', |
|
920
|
|
|
'tt', |
|
921
|
|
|
'var', |
|
922
|
|
|
]; |
|
923
|
|
|
|
|
924
|
|
|
# ~ |
|
925
|
|
|
|
|
926
|
|
|
private $strong_regex = [ |
|
927
|
|
|
'*' => '/^[*]{2}([^*]+?)[*]{2}(?![*])/s', |
|
928
|
|
|
'_' => '/^__([^_]+?)__(?!_)/s', |
|
929
|
|
|
]; |
|
930
|
|
|
|
|
931
|
|
|
private $em_regex = [ |
|
932
|
|
|
'*' => '/^[*]([^*]+?)[*](?![*])/s', |
|
933
|
|
|
'_' => '/^_([^_]+?)[_](?![_])\b/s', |
|
934
|
|
|
]; |
|
935
|
|
|
|
|
936
|
|
|
private $strong_em_regex = [ |
|
937
|
|
|
'*' => '/^[*]{2}(.*?)[*](.+?)[*](.*?)[*]{2}/s', |
|
938
|
|
|
'_' => '/^__(.*?)_(.+?)_(.*?)__/s', |
|
939
|
|
|
]; |
|
940
|
|
|
|
|
941
|
|
|
private $em_strong_regex = [ |
|
942
|
|
|
'*' => '/^[*](.*?)[*]{2}(.+?)[*]{2}(.*?)[*]/s', |
|
943
|
|
|
'_' => '/^_(.*?)__(.+?)__(.*?)_/s', |
|
944
|
|
|
]; |
|
945
|
|
|
} |
|
946
|
|
|
|
mambax7 /
extgallery
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