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<?php |
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/** |
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* summary |
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* Truncates the HTML string to the specified length |
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* |
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* Copyright 2013 by Agel_Nash <[email protected]> |
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* |
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* @category extender |
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* @license GNU General Public License (GPL), http://www.gnu.org/copyleft/gpl.html |
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* @author Agel_Nash <[email protected]> |
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* @see http://blog.agel-nash.ru/addon/summary.html |
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* @date 31.07.2013 |
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* @version 1.0.3 |
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*/ |
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include_once(MODX_BASE_PATH . 'assets/lib/APIHelpers.class.php'); |
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/** |
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* Class SummaryText |
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*/ |
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class SummaryText |
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{ |
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/** |
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* @var array |
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*/ |
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private $_cfg = array('content' => '', 'summary' => '', 'original' => '', 'break' => ''); |
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/** |
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* @var bool|null |
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*/ |
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private $_useCut = null; |
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/** |
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* @var bool |
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*/ |
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private $_useSubstr = false; |
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/** |
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* @var int |
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*/ |
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private $_dotted = 0; |
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/** |
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* SummaryText constructor. |
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* @param $text |
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* @param $action |
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* @param null $break |
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*/ |
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public function __construct($text, $action, $break = null) |
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{ |
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$this->_cfg['content'] = is_scalar($text) ? $text : ''; |
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$this->_cfg['original'] = $this->_cfg['content']; |
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$this->_cfg['summary'] = is_scalar($action) ? $action : ''; |
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$this->_cfg['break'] = is_scalar($break) ? $break : '. '; |
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} |
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/** |
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* @param $cut |
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* @return bool |
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*/ |
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public function setCut($cut) |
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{ |
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if (is_scalar($cut) && $cut != '') { |
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$this->_cfg['cut'] = $cut; |
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$flag = true; |
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} else { |
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$flag = false; |
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} |
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return $flag; |
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} |
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/** |
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* @return mixed |
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*/ |
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public function getCut() |
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{ |
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return \APIHelpers::getkey($this->_cfg, 'cut', '<cut/>'); |
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} |
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/** |
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* @param int $scheme |
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* @return mixed |
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*/ |
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protected function dotted($scheme = 0) |
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{ |
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if (($scheme == 1 && ($this->_useCut === true || $this->_useSubstr)) || ($scheme == 2 && $this->_useSubstr && $this->_useCut !== true)) { |
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$this->_cfg['content'] .= '…'; //... |
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} else { |
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if ($scheme && ($this->_useCut !== true|| $scheme != 2)) { |
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$this->_cfg['content'] .= '.'; |
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} |
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} |
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return $this->_cfg['content']; |
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} |
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/** |
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* @param int $dotted |
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* @return mixed |
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*/ |
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public function run($dotted = 0) |
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{ |
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$this->_dotted = $dotted; |
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if (isset($this->_cfg['content'], $this->_cfg['summary']) && $this->_cfg['summary'] != '' && $this->_cfg['content'] != '') { |
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$param = explode(",", $this->_cfg['summary']); |
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$this->_cfg['content'] = $this->beforeCut($this->_cfg['content'], $this->getCut()); |
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foreach ($param as $doing) { |
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$process = explode(":", $doing); |
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switch ($process[0]) { |
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case 'notags': |
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$this->_cfg['content'] = strip_tags($this->_cfg['content']); |
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break; |
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case 'noparser': |
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$this->_cfg['content'] = APIhelpers::sanitarTag($this->_cfg['content']); |
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break; |
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case 'chars': |
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if (!(isset($process[1]) && $process[1] > 0)) { |
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$process[1] = 200; |
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} |
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$this->_cfg['content'] = APIhelpers::mb_trim_word($this->_cfg['content'], $process[1]); |
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break; |
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case 'len': |
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if (!(isset($process[1]) && $process[1] > 0)) { |
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$process[1] = 200; |
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} |
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$this->_cfg['content'] = $this->summary($this->_cfg['content'], $process[1], 50, true, |
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$this->getCut()); |
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break; |
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} |
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} |
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} |
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return $this->dotted($dotted); |
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} |
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/** |
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* @param $resource |
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* @param string $splitter |
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* @return array|mixed |
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*/ |
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protected function beforeCut($resource, $splitter = '') |
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{ |
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if ($splitter !== '') { |
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$summary = str_replace('<p>' . $splitter . '</p>', $splitter, |
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$resource); // For TinyMCE or if it isn't wrapped inside paragraph tags |
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$summary = explode($splitter, $summary, 2); |
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$this->_useCut = isset($summary[1]); |
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$summary = $summary['0']; |
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} else { |
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$summary = $resource; |
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} |
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return $summary; |
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} |
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/** |
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* @param $resource |
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* @param $truncLen |
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* @param $truncOffset |
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* @param $truncChars |
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* @param string $splitter |
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* @return array|mixed|string |
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*/ |
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protected function summary($resource, $truncLen, $truncOffset, $truncChars, $splitter = '') |
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{ |
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if (isset($this->_useCut) && $splitter != '' && mb_strstr($resource, $splitter, 'UTF-8')) { |
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$summary = $this->beforeCut($resource, $splitter); |
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} else { |
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if ($this->_useCut !== true && (mb_strlen($resource, 'UTF-8') > $truncLen)) { |
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$summary = $this->html_substr($resource, $truncLen, $truncOffset, $truncChars); |
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if ($resource != $summary) { |
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$this->_useSubstr = true; |
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} |
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} else { |
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$summary = $resource; |
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} |
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} |
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$summary = $this->closeTags($summary); |
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$summary = $this->rTriming($summary); |
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return $summary; |
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} |
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/** |
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* @see summary extender for Ditto (truncate::html_substr) |
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* @link https://github.com/modxcms/evolution/blob/develop/assets/snippets/ditto/extenders/summary.extender.inc.php#L142 |
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* |
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* @param $posttext |
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* @param int $minimum_length |
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* @param int $length_offset |
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* @param bool $truncChars |
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* @return string |
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*/ |
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protected function html_substr($posttext, $minimum_length = 200, $length_offset = 100, $truncChars = false) |
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{ |
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$tag_counter = 0; |
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$quotes_on = false; |
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if (mb_strlen($posttext) > $minimum_length && $truncChars !== true) { |
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$c = 0; |
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$len = mb_strlen($posttext, 'UTF-8'); |
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for ($i = 0; $i < $len; $i++) { |
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$current_char = mb_substr($posttext, $i, 1, 'UTF-8'); |
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if ($i < mb_strlen($posttext, 'UTF-8') - 1) { |
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$next_char = mb_substr($posttext, $i + 1, 1, 'UTF-8'); |
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} else { |
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$next_char = ""; |
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} |
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if (!$quotes_on) { |
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// Check if it's a tag |
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// On a "<" add 3 if it's an opening tag (like <a href...) |
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// or add only 1 if it's an ending tag (like </a>) |
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if ($current_char == '<') { |
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if ($next_char == '/') { |
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$tag_counter += 1; |
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} else { |
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$tag_counter += 3; |
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} |
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} |
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// Slash signifies an ending (like </a> or ... />) |
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// substract 2 |
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if ($current_char == '/' && $tag_counter <> 0) { |
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$tag_counter -= 2; |
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} |
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// On a ">" substract 1 |
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if ($current_char == '>') { |
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$tag_counter -= 1; |
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} |
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// If quotes are encountered, start ignoring the tags |
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// (for directory slashes) |
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if ($current_char == '"') { |
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$quotes_on = true; |
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} |
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} else { |
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// IF quotes are encountered again, turn it back off |
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if ($current_char == '"') { |
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$quotes_on = false; |
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} |
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} |
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// Count only the chars outside html tags |
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if ($tag_counter == 2 || $tag_counter == 0) { |
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$c++; |
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} |
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// Check if the counter has reached the minimum length yet, |
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// then wait for the tag_counter to become 0, and chop the string there |
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if ($c > $minimum_length - $length_offset && $tag_counter == 0) { |
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$posttext = mb_substr($posttext, 0, $i + 1, 'UTF-8'); |
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return $posttext; |
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} |
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} |
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} |
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return $this->textTrunc($posttext, $minimum_length + $length_offset, $this->_cfg['break']); |
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} |
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/** |
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* @see summary extender for Ditto (truncate::textTrunc) |
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* @link https://github.com/modxcms/evolution/blob/develop/assets/snippets/ditto/extenders/summary.extender.inc.php#L213 |
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* |
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* @param $string |
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* @param $limit |
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* @param string $break |
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* @return string |
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*/ |
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protected function textTrunc($string, $limit, $break = ". ") |
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{ |
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// Original PHP code from The Art of Web: www.the-art-of-web.com |
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// return with no change if string is shorter than $limit |
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if (mb_strlen($string, 'UTF-8') < $limit) { |
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return $string; |
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} |
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$string = mb_substr($string, 0, $limit, 'UTF-8'); |
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if (false !== ($breakpoint = mb_strrpos($string, $break, 'UTF-8'))) { |
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$string = mb_substr($string, 0, $breakpoint + 1, 'UTF-8'); |
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} else { |
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if ($break != ' ') { |
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$string = $this->textTrunc($string, $limit, " "); |
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} |
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} |
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return $string; |
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} |
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/** |
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* @param $str |
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* @return mixed |
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*/ |
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protected function rTriming($str) |
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{ |
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$str = preg_replace('/[\r\n]++/', ' ', $str); |
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if ($this->_useCut !== true || $this->_dotted != 2) { |
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$str = preg_replace("/(([\.,\-:!?;\s])|(&\w+;))+$/ui", "", $str); |
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} |
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return $str; |
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} |
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/** |
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* @see summary extender for Ditto (truncate::closeTags) |
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* @link https://github.com/modxcms/evolution/blob/develop/assets/snippets/ditto/extenders/summary.extender.inc.php#L227 |
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* @param $text |
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* @return string |
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*/ |
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private function closeTags($text) |
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312
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{ |
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$openPattern = "/<([^\/].*?)>/"; |
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$closePattern = "/<\/(.*?)>/"; |
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315
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$endTags = ''; |
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316
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317
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preg_match_all($openPattern, $text, $openTags); |
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318
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preg_match_all($closePattern, $text, $closeTags); |
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320
|
|
|
$c = 0; |
|
321
|
|
|
$loopCounter = count($closeTags[1]); //used to prevent an infinite loop if the html is malformed |
|
322
|
|
|
while ($c < count($closeTags[1]) && $loopCounter) { |
|
323
|
|
|
$i = 0; |
|
324
|
|
|
while ($i < count($openTags[1])) { |
|
325
|
|
|
$tag = trim($openTags[1][$i]); |
|
326
|
|
|
|
|
327
|
|
|
if (mb_strstr($tag, ' ', 'UTF-8')) { |
|
|
|
|
|
|
328
|
|
|
$tag = mb_substr($tag, 0, strpos($tag, ' '), 'UTF-8'); |
|
329
|
|
|
} |
|
330
|
|
|
if ($tag == $closeTags[1][$c]) { |
|
331
|
|
|
$openTags[1][$i] = ''; |
|
332
|
|
|
$c++; |
|
333
|
|
|
break; |
|
334
|
|
|
} |
|
335
|
|
|
$i++; |
|
336
|
|
|
} |
|
337
|
|
|
$loopCounter--; |
|
338
|
|
|
} |
|
339
|
|
|
|
|
340
|
|
|
$results = $openTags[1]; |
|
341
|
|
|
|
|
342
|
|
|
if (is_array($results)) { |
|
343
|
|
|
$results = array_reverse($results); |
|
344
|
|
|
|
|
345
|
|
|
foreach ($results as $tag) { |
|
346
|
|
|
$tag = trim($tag); |
|
347
|
|
|
|
|
348
|
|
|
if (mb_strstr($tag, ' ', 'UTF-8')) { |
|
349
|
|
|
$tag = mb_substr($tag, 0, strpos($tag, ' '), 'UTF-8'); |
|
350
|
|
|
} |
|
351
|
|
|
if (!mb_stristr($tag, 'br', 'UTF-8') && !mb_stristr($tag, 'img', 'UTF-8') && !empty ($tag)) { |
|
|
|
|
|
|
352
|
|
|
$endTags .= '</' . $tag . '>'; |
|
353
|
|
|
} |
|
354
|
|
|
} |
|
355
|
|
|
} |
|
356
|
|
|
|
|
357
|
|
|
return $text . $endTags; |
|
358
|
|
|
} |
|
359
|
|
|
} |
|
360
|
|
|
|
AgelxNash /
DocLister
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