47 lines
1.3 KiB
PHP
47 lines
1.3 KiB
PHP
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<?php
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/**
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* Smarty plugin
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* @package Smarty
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* @subpackage plugins
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*/
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/**
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* Smarty truncate modifier plugin
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*
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* Type: modifier<br>
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* Name: truncate<br>
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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 $etc into the middle.
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* @link http://smarty.php.net/manual/en/language.modifier.truncate.php
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* truncate (Smarty online manual)
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* @author Monte Ohrt <monte at ohrt dot com>
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* @param string
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* @param integer
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* @param string
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* @param boolean
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* @param boolean
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* @return string
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*/
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function smarty_modifier_truncate_cn($string, $length = 80, $etc = '...', $code = 'GBK')
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{
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if ($length == 0)
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return '';
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if ($code == 'UTF-8') {
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$pa = "/[\x01-\x7f]|[\xc2-\xdf][\x80-\xbf]|\xe0[\xa0-\xbf][\x80-\xbf]|[\xe1-\xef][\x80-\xbf][\x80-\xbf]|\xf0[\x90-\xbf][\x80-\xbf][\x80-\xbf]|[\xf1-\xf7][\x80-\xbf][\x80-\xbf][\x80-\xbf]/";
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}else{
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$pa = "/[\x01-\x7f]|[\xa1-\xff][\xa1-\xff]/";
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}
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preg_match_all($pa, $string, $t_string);
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if (count($t_string[0]) > $length)
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return join('', array_slice($t_string[0], 0, $length)) . $etc;
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return join('', array_slice($t_string[0], 0, $length));
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}
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/* vim: set expandtab: */
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?>
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