63 lines
2.2 KiB
PHP
63 lines
2.2 KiB
PHP
<?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 https://www.smarty.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, intval($length / 2), Smarty::$_CHARSET) . $etc .
|
|
mb_substr($string, -intval($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, intval($length / 2)) . $etc . substr($string, -intval($length / 2));
|
|
}
|
|
return $string;
|
|
}
|