Your IP : 216.73.217.112
<?php
/**
* @version $Id: HTMLManipulator.php 10887 2013-05-30 06:31:57Z btowles $
* @author RocketTheme http://www.rockettheme.com
* @copyright Copyright (C) 2007 - 2020 RocketTheme, LLC
* @license http://www.gnu.org/licenses/gpl-2.0.html GNU/GPLv2 only
*/
/**
*
*/
class RokSprocket_Util_HTMLManipulator
{
/**
* @var array
*/
protected $stack = array();
/**
* @param $content
* @param bool $amount
*
* @return mixed
*/
public function truncate($content, $amount = false)
{
if (!$amount || preg_match_all("/\s+/", $content, $junk) <= $amount) return $content;
$content = preg_replace_callback("/(<\/?[^>]+\s+[^>]*>)/", array($this, '_shield'), $content);
$words = 0;
$output = array();
$content = str_replace(array("<", ">"), array(" <", "> "), $content);
$tokens = mb_split("\s+", $content);
foreach ($tokens as $token) {
// goes through tags and store them so they can get restored afterwards
if (preg_match_all("/<(\/?[^\x01>]+)([^>]*)>/", $token, $tags, PREG_SET_ORDER)) {
foreach ($tags as $tag) $this->_recordTag($tag[1], $tag[2]);
}
$output[] = trim($token);
if (!preg_match("/^(<[^>]+>)+$/", $token)) {
// if it's a real word outside tags, increase the count
if (preg_match("/\p{L}+/u", $token)) $matching = true;
else $matching = preg_match("/\w/", $token);
if (!strpos($token, '=') && !strpos($token, '<') && strlen(trim(strip_tags($token))) > 0 && $matching) ++$words;
}
if ($words >= $amount) break;
}
$truncate = $this->_unshield(implode(' ', $output));
return $truncate;
}
/**
* @param $content
* @param bool $amount
*
* @return string
*/
public function truncateHTML($content, $amount = false)
{
return $this->restoreTags($this->truncate($content, $amount));
}
/**
* @param $content
*
* @return string
*/
public function restoreTags($content)
{
foreach ($this->stack as $tag) $content .= "</" . $tag . ">";
return $content;
}
/**
* @param $matches
*
* @return mixed
*/
private function _shield($matches)
{
return preg_replace("/\s/", "\x01", $matches[0]);
}
/**
* @param $strings
*
* @return mixed
*/
private function _unshield($strings)
{
return preg_replace("/\x01/", " ", $strings);
}
/**
* @param $tag
* @param $args
*/
private function _recordTag($tag, $args)
{
if (strlen($args) and $args[strlen($args) - 1] == '/') return; else if ($tag[0] == '/') {
$tag = substr($tag, 1);
for ($i = count($this->stack) - 1; $i >= 0; $i--) {
if ($this->stack[$i] == $tag) {
array_splice($this->stack, $i, 1);
return;
}
}
return;
} else if (in_array($tag, array('p', 'li', 'ul', 'ol', 'div', 'span', 'a'))) $this->stack[] = $tag; else return;
}
}