1 <?php
2 /**
3 * Smarty plugin
4 *
5 * @package Smarty
6 * @subpackage PluginsModifier
7 */
9 /**
10 * Smarty truncate modifier plugin
11 *
12 * Type: modifier<br>
13 * Name: truncate<br>
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.
17 *
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 lenght of truncated text
22 * @param string $etc end string
23 * @param boolean $break_words truncate at word boundary
24 * @param boolean $middle truncate in the middle of text
25 * @return string truncated string
26 */
27 function smarty_modifier_truncate($string, $length = 80, $etc = '...',
28 $break_words = false, $middle = false)
29 {
30 if ($length == 0)
31 return '';
33 if (is_callable('mb_strlen')) {
34 if (mb_strlen($string) > $length) {
35 $length -= min($length, mb_strlen($etc));
36 if (!$break_words && !$middle) {
37 $string = preg_replace('/\s+?(\S+)?$/u', '', mb_substr($string, 0, $length + 1));
38 }
39 if (!$middle) {
40 return mb_substr($string, 0, $length) . $etc;
41 } else {
42 return mb_substr($string, 0, $length / 2) . $etc . mb_substr($string, - $length / 2);
43 }
44 } else {
45 return $string;
46 }
47 } else {
48 if (strlen($string) > $length) {
49 $length -= min($length, strlen($etc));
50 if (!$break_words && !$middle) {
51 $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1));
52 }
53 if (!$middle) {
54 return substr($string, 0, $length) . $etc;
55 } else {
56 return substr($string, 0, $length / 2) . $etc . substr($string, - $length / 2);
57 }
58 } else {
59 return $string;
60 }
61 }
62 }
64 ?>