<?php

/**

 * Smarty shared plugin

 *

 * @package    Smarty

 * @subpackage PluginsShared

 */

if (!function_exists('smarty_mb_wordwrap')) {

    /**

     * Wrap a string to a given number of characters

     *

     * @link   http://php.net/manual/en/function.wordwrap.php for similarity

     *

     * @param  string $str the string to wrap

     * @param  int $width the width of the output

     * @param  string $break the character used to break the line

     * @param  boolean $cut ignored parameter, just for the sake of

     *

     * @return string  wrapped string

     * @author Rodney Rehm

     */

    function smarty_mb_wordwrap($str, $width = 75, $break = "\n", $cut = false) {

        // break words into tokens using white space as a delimiter

        $tokens = preg_split('!(\s)!S' . Smarty::$_UTF8_MODIFIER, $str, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);

        $length = 0;

        $t = '';

        $_previous = false;

        $_space = false;

        foreach ($tokens as $_token) {

            $token_length = mb_strlen($_token, Smarty::$_CHARSET);

            $_tokens = array($_token);

            if ($token_length > $width) {

                if ($cut) {

                    $_tokens = preg_split('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER, $_token, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);

                }

            }

            foreach ($_tokens as $token) {

                $_space = !!preg_match('!^\s$!S' . Smarty::$_UTF8_MODIFIER, $token);

                $token_length = mb_strlen($token, Smarty::$_CHARSET);

                $length += $token_length;

                if ($length > $width) {

                    // remove space before inserted break

                    if ($_previous) {

                        $t = mb_substr($t, 0, -1, Smarty::$_CHARSET);

                    }

                    if (!$_space) {

                        // add the break before the token

                        if (!empty($t)) {

                            $t .= $break;

                        }

                        $length = $token_length;

                    }

                } elseif ($token == "\n") {

                    // hard break must reset counters

                    $_previous = 0;

                    $length = 0;

                }

                $_previous = $_space;

                // add the token

                $t .= $token;

            }

        }

        return $t;

    }

}