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