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2809 rexy 1 
<?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 wordwrap modifier plugin
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 * Type:     modifier
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 * Name:     mb_wordwrap
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 * Purpose:  Wrap a string to a given number of characters
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 *
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 * @link   http://php.net/manual/en/function.wordwrap.php for similarity
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 *
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 * @param string  $str   the string to wrap
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 * @param int     $width the width of the output
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 * @param string  $break the character used to break the line
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 * @param boolean $cut   ignored parameter, just for the sake of
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 *
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 * @return string  wrapped string
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 * @author Rodney Rehm
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 */
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function smarty_modifier_mb_wordwrap($str, $width = 75, $break = "\n", $cut = false)
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{
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    // break words into tokens using white space as a delimiter
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    $tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
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    $length = 0;
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    $t = '';
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    $_previous = false;
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    $_space = false;
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    foreach ($tokens as $_token) {
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        $token_length = mb_strlen($_token, Smarty::$_CHARSET);
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        $_tokens = array($_token);
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        if ($token_length > $width) {
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            if ($cut) {
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                $_tokens = preg_split(
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                    '!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER,
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                    $_token,
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                    -1,
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                    PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE
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                );
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            }
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        }
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        foreach ($_tokens as $token) {
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            $_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token);
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            $token_length = mb_strlen($token, Smarty::$_CHARSET);
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            $length += $token_length;
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            if ($length > $width) {
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                // remove space before inserted break
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                if ($_previous) {
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                    $t = mb_substr($t, 0, -1, Smarty::$_CHARSET);
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                }
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                if (!$_space) {
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                    // add the break before the token
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                    if (!empty($t)) {
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                        $t .= $break;
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                    }
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                    $length = $token_length;
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                }
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            } elseif ($token === "\n") {
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                // hard break must reset counters
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                $length = 0;
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            }
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            $_previous = $_space;
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            // add the token
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            $t .= $token;
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        }
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    }
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    return $t;
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}