1: <?php
2: /**
3: * Smarty plugin
4: *
5: * @package Smarty
6: * @subpackage PluginsModifier
7: */
8: /**
9: * Smarty truncate modifier plugin
10: * Type: modifier
11: * Name: truncate
12: * Purpose: Truncate a string to a certain length if necessary,
13: * optionally splitting in the middle of a word, and
14: * appending the $etc string or inserting $etc into the middle.
15: *
16: * @link http://smarty.php.net/manual/en/language.modifier.truncate.php truncate (Smarty online manual)
17: * @author Monte Ohrt <monte at ohrt dot com>
18: *
19: * @param string $string input string
20: * @param integer $length length of truncated text
21: * @param string $etc end string
22: * @param boolean $break_words truncate at word boundary
23: * @param boolean $middle truncate in the middle of text
24: *
25: * @return string truncated string
26: */
27: function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false)
28: {
29: if ($length === 0) {
30: return '';
31: }
32: if (Smarty::$_MBSTRING) {
33: if (mb_strlen($string, Smarty::$_CHARSET) > $length) {
34: $length -= min($length, mb_strlen($etc, Smarty::$_CHARSET));
35: if (!$break_words && !$middle) {
36: $string = preg_replace(
37: '/\s+?(\S+)?$/' . Smarty::$_UTF8_MODIFIER,
38: '',
39: mb_substr($string, 0, $length + 1, Smarty::$_CHARSET)
40: );
41: }
42: if (!$middle) {
43: return mb_substr($string, 0, $length, Smarty::$_CHARSET) . $etc;
44: }
45: return mb_substr($string, 0, $length / 2, Smarty::$_CHARSET) . $etc .
46: mb_substr($string, -$length / 2, $length, Smarty::$_CHARSET);
47: }
48: return $string;
49: }
50: // no MBString fallback
51: if (isset($string[ $length ])) {
52: $length -= min($length, strlen($etc));
53: if (!$break_words && !$middle) {
54: $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1));
55: }
56: if (!$middle) {
57: return substr($string, 0, $length) . $etc;
58: }
59: return substr($string, 0, $length / 2) . $etc . substr($string, -$length / 2);
60: }
61: return $string;
62: }
63: