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67 lines
2.1 KiB
67 lines
2.1 KiB
7 years ago
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<?php
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/**
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* Smarty plugin
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*
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* @package Smarty
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* @subpackage PluginsModifier
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*/
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/**
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* Smarty truncate modifier plugin
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* Type: modifier
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* Name: truncate
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* Purpose: Truncate a string to a certain length if necessary,
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* optionally splitting in the middle of a word, and
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* appending the $etc string or inserting $etc into the middle.
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*
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* @link http://smarty.php.net/manual/en/language.modifier.truncate.php truncate (Smarty online manual)
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* @author Monte Ohrt <monte at ohrt dot com>
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*
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* @param string $string input string
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* @param integer $length length of truncated text
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* @param string $etc end string
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* @param boolean $break_words truncate at word boundary
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* @param boolean $middle truncate in the middle of text
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*
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* @return string truncated string
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*/
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function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false)
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{
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if ($length === 0) {
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return '';
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}
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if (Smarty::$_MBSTRING) {
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if (mb_strlen($string, Smarty::$_CHARSET) > $length) {
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$length -= min($length, mb_strlen($etc, Smarty::$_CHARSET));
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if (!$break_words && !$middle) {
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$string = preg_replace('/\s+?(\S+)?$/' . Smarty::$_UTF8_MODIFIER, '',
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mb_substr($string, 0, $length + 1, Smarty::$_CHARSET));
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}
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if (!$middle) {
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return mb_substr($string, 0, $length, Smarty::$_CHARSET) . $etc;
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}
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return mb_substr($string, 0, $length / 2, Smarty::$_CHARSET) . $etc .
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mb_substr($string, - $length / 2, $length, Smarty::$_CHARSET);
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}
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return $string;
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}
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// no MBString fallback
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if (isset($string[ $length ])) {
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$length -= min($length, strlen($etc));
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if (!$break_words && !$middle) {
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$string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1));
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}
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if (!$middle) {
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return substr($string, 0, $length) . $etc;
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}
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return substr($string, 0, $length / 2) . $etc . substr($string, - $length / 2);
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}
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return $string;
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}
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