library/smarty/libs/plugins/modifier.truncate.php
author Markus Bröker <broeker.markus@googlemail.com>
Sat, 14 Nov 2015 02:40:44 +0100
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permissions -rw-r--r--
Request::hasPost: Array ist immer gesetzt, Inhalt variiert
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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<?php
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/**
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 * Smarty plugin
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 *
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 * @package    Smarty
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 * @subpackage PluginsModifier
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 */
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/**
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 * Smarty truncate modifier plugin
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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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 *
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 * @link   http://smarty.php.net/manual/en/language.modifier.truncate.php truncate (Smarty online manual)
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 * @author Monte Ohrt <monte at ohrt dot com>
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 *
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 * @param string $string input string
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 * @param integer $length length of truncated text
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 * @param string $etc end string
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 * @param boolean $break_words truncate at word boundary
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 * @param boolean $middle truncate in the middle of text
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 *
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 * @return string truncated string
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 */
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function smarty_modifier_truncate($string, $length = 80, $etc = '...', $break_words = false, $middle = false) {
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    if ($length == 0) {
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        return '';
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    }
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    if (Smarty::$_MBSTRING) {
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        if (mb_strlen($string, Smarty::$_CHARSET) > $length) {
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            $length -= min($length, mb_strlen($etc, Smarty::$_CHARSET));
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            if (!$break_words && !$middle) {
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                $string = preg_replace('/\s+?(\S+)?$/' . Smarty::$_UTF8_MODIFIER, '', mb_substr($string, 0, $length + 1, Smarty::$_CHARSET));
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            }
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            if (!$middle) {
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                return mb_substr($string, 0, $length, Smarty::$_CHARSET) . $etc;
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            }
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            return mb_substr($string, 0, $length / 2, Smarty::$_CHARSET) . $etc . mb_substr($string, -$length / 2, $length, Smarty::$_CHARSET);
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        }
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        return $string;
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    }
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    // no MBString fallback
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    if (isset($string[$length])) {
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        $length -= min($length, strlen($etc));
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        if (!$break_words && !$middle) {
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            $string = preg_replace('/\s+?(\S+)?$/', '', substr($string, 0, $length + 1));
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        }
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        if (!$middle) {
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            return substr($string, 0, $length) . $etc;
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        }
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        return substr($string, 0, $length / 2) . $etc . substr($string, -$length / 2);
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    }
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    return $string;
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}