晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //home/akaindir/public_html/crm/libraries/Smarty/libs/plugins/shared.mb_wordwrap.php
<?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;

        foreach ($tokens as $_token) {
            $token_length = mb_strlen($_token, Smarty::$_CHARSET);
            $_tokens = array($_token);
            if ($token_length > $width) {
                // remove last space
                $t = mb_substr($t, 0, -1, Smarty::$_CHARSET);
                $_previous = false;
                $length = 0;

                if ($cut) {
                    $_tokens = preg_split('!(.{' . $width . '})!S' . Smarty::$_UTF8_MODIFIER, $_token, -1, PREG_SPLIT_NO_EMPTY + PREG_SPLIT_DELIM_CAPTURE);
                    // broken words go on a new line
                    $t .= $break;
                }
            }

            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 && $token_length < $width) {
                        $t = mb_substr($t, 0, -1, Smarty::$_CHARSET);
                    }

                    // add the break before the token
                    $t .= $break;
                    $length = $token_length;

                    // skip space after inserting a break
                    if ($_space) {
                        $length = 0;
                        continue;
                    }
                } else if ($token == "\n") {
                    // hard break must reset counters
                    $_previous = 0;
                    $length = 0;
                } else {
                    // remember if we had a space or not
                    $_previous = $_space;
                }
                // add the token
                $t .= $token;
            }
        }

        return $t;
    }

}
?>

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