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<?php /** * @package Lib_Compojoom * @author DanielDimitrov <daniel@compojoom.com> * @date 30.09.2014 * * @copyright Copyright (C) 2008 - 2013 compojoom.com . All rights reserved. * @license GNU General Public License version 2 or later; see LICENSE / defined('_JEXEC') or die('Restricted access'); /* * HTML helper class for rendering manipulated strings. * Since the truncateComplex is not available on j3.1 * we had to create this class * * @package Lib_Compojoom * @subpackage HTML * @since 1.6 / abstract class CompojoomHtmlString { /* * This method is available first in joomla 3.1 * We have this function here to polyfill for joomla 2.5 * * Method to extend the truncate method to more complex situations * * The goal is to get the proper length plain text string with as much of * the html intact as possible with all tags properly closed. * * @param string $html The content of the introtext to be truncated * @param integer $maxLength The maximum number of characters to render * @param boolean $noSplit Don't split a word if that is where the cutoff occurs (default: true). * * @return string The truncated string. If the string is truncated an ellipsis * (...) will be appended. * * @note If a maximum length of 3 or less is selected and the text has more than * that number of characters an ellipsis will be displayed. * This method will not create valid HTML from malformed HTML. * * @since 3.1 / public static function truncateComplex($html, $maxLength = 0, $noSplit = true) { if (JVERSION > 3.1) { return JHtmlString::truncateComplex($html, $maxLength, $noSplit); } // Start with some basic rules. $baseLength = strlen($html); // If the original HTML string is shorter than the $maxLength do nothing and return that. if ($baseLength <= $maxLength \|\| $maxLength == 0) { return $html; } // Take care of short simple cases. if ($maxLength <= 3 && substr($html, 0, 1) != '<' && strpos(substr($html, 0, $maxLength - 1), '<') === false && $baseLength > $maxLength) { return '...'; } // Deal with maximum length of 1 where the string starts with a tag. if ($maxLength == 1 && substr($html, 0, 1) == '<') { $endTagPos = strlen(strstr($html, '>', true)); $tag = substr($html, 1, $endTagPos); $l = $endTagPos + 1; if ($noSplit) { return substr($html, 0, $l) . '</' . $tag . '...'; } // TODO: $character doesn't seem to be used... $character = substr(strip_tags($html), 0, 1); return substr($html, 0, $l) . '</' . $tag . '...'; } // First get the truncated plain text string. This is the rendered text we want to end up with. $ptString = JHtml::_('string.truncate', $html, $maxLength, $noSplit, $allowHtml = false); // It's all HTML, just return it. if (strlen($ptString) == 0) { return $html; } // If the plain text is shorter than the max length the variable will not end in ... // In that case we use the whole string. if (substr($ptString, -3) != '...') { return $html; } // Regular truncate gives us the ellipsis but we want to go back for text and tags. if ($ptString == '...') { $stripped = substr(strip_tags($html), 0, $maxLength); $ptString = JHtml::_('string.truncate', $stripped, $maxLength, $noSplit, $allowHtml = false); } // We need to trim the ellipsis that truncate adds. $ptString = rtrim($ptString, '.'); // Now deal with more complex truncation. while ($maxLength <= $baseLength) { // Get the truncated string assuming HTML is allowed. $htmlString = JHtml::_('string.truncate', $html, $maxLength, $noSplit, $allowHtml = true); if ($htmlString == '...' && strlen($ptString) + 3 > $maxLength) { return $htmlString; } $htmlString = rtrim($htmlString, '.'); // Now get the plain text from the HTML string and trim it. $htmlStringToPtString = JHtml::_('string.truncate', $htmlString, $maxLength, $noSplit, $allowHtml = false); $htmlStringToPtString = rtrim($htmlStringToPtString, '.'); // If the new plain text string matches the original plain text string we are done. if ($ptString == $htmlStringToPtString) { return $htmlString . '...'; } // Get the number of HTML tag characters in the first $maxLength characters $diffLength = strlen($ptString) - strlen($htmlStringToPtString); if ($diffLength <= 0) { return $htmlString . '...'; } // Set new $maxlength that adjusts for the HTML tags $maxLength += $diffLength; } } /* * Generates a Universally Unique Identifier, version 4. (truly random UUID) * * @param bool $hex - If TRUE return the uuid in hex format, otherwise as a string * * @see http://tools.ietf.org/html/rfc4122#section-4.4 * @see http://en.wikipedia.org/wiki/UUID * * @return string - A UUID, made up of 36 characters or 16 hex digits. * * @since 5.1.13 / public static function getUuid($hex = false) { $pr_bits = false; if (!$pr_bits) { $fp = @fopen('/dev/urandom', 'rb'); if ($fp !== false) { $pr_bits .= @fread($fp, 16); @fclose($fp); } else { // If /dev/urandom isn't available (eg: in non-unix systems), use mt_rand(). $pr_bits = ""; for ($cnt = 0; $cnt < 16; $cnt++) { $pr_bits .= chr(mt_rand(0, 255)); } } } $time_low = bin2hex(substr($pr_bits, 0, 4)); $time_mid = bin2hex(substr($pr_bits, 4, 2)); $time_hi_and_version = bin2hex(substr($pr_bits, 6, 2)); $clock_seq_hi_and_reserved = bin2hex(substr($pr_bits, 8, 2)); $node = bin2hex(substr($pr_bits, 10, 6)); /* * Set the four most significant bits (bits 12 through 15) of the * time_hi_and_version field to the 4-bit version number from * Section 4.1.3. * @see http://tools.ietf.org/html/rfc4122#section-4.1.3 / $time_hi_and_version = hexdec($time_hi_and_version); $time_hi_and_version = $time_hi_and_version >> 4; $time_hi_and_version = $time_hi_and_version \| 0x4000; /* * Set the two most significant bits (bits 6 and 7) of the * clock_seq_hi_and_reserved to zero and one, respectively. */ $clock_seq_hi_and_reserved = hexdec($clock_seq_hi_and_reserved); $clock_seq_hi_and_reserved = $clock_seq_hi_and_reserved >> 2; $clock_seq_hi_and_reserved = $clock_seq_hi_and_reserved \| 0x8000; // Either return as hex or as string $format = $hex ? '%08s%04s%04x%04x%012s' : '%08s-%04s-%04x-%04x-%012s'; return sprintf($format, $time_low, $time_mid, $time_hi_and_version, $clock_seq_hi_and_reserved, $node); } }

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