6 * @subpackage PluginsModifier
10 * Smarty truncate modifier plugin
14 * Purpose: Truncate a string to a certain length if necessary,
15 * optionally splitting in the middle of a word, and
16 * appending the $etc string or inserting $etc into the middle.
18 * @link http://smarty.php.net/manual/en/language.modifier.truncate.php truncate (Smarty online manual)
19 * @author Monte Ohrt <monte at ohrt dot com>
20 * @param string $string input string
21 * @param integer $length length of truncated text
22 * @param string $etc end string
23 * @param boolean $break_words truncate at word boundary
24 * @param boolean $middle truncate in the middle of text
25 * @return string truncated string
27 function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false) {
31 if (Smarty::$_MBSTRING) {
32 if (mb_strlen($string, Smarty::$_CHARSET) > $length) {
33 $length -= min($length, mb_strlen($etc, Smarty::$_CHARSET));
34 if (!$break_words && !$middle) {
35 $string = preg_replace('/\s+?(\S+)?$/' . Smarty::$_UTF8_MODIFIER, '', mb_substr($string, 0, $length + 1, Smarty::$_CHARSET));
38 return mb_substr($string, 0, $length, Smarty::$_CHARSET) . $etc;
40 return mb_substr($string, 0, $length / 2, Smarty::$_CHARSET) . $etc . mb_substr($string, - $length / 2, $length, Smarty::$_CHARSET);
45 // no MBString fallback
46 if (isset($string[$length])) {
47 $length -= min($length, strlen($etc));
48 if (!$break_words && !$middle) {
49 $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1));
52 return substr($string, 0, $length) . $etc;
54 return substr($string, 0, $length / 2) . $etc . substr($string, - $length / 2);