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/www/crm/libraries/Smarty/libs/plugins/modifier.escape.php
<?php
/**
 * Smarty plugin
 *
 * @package Smarty
 * @subpackage PluginsModifier
 */

/**
 * Smarty escape modifier plugin
 *
 * Type:     modifier<br>
 * Name:     escape<br>
 * Purpose:  escape string for output
 *
 * @link http://www.smarty.net/manual/en/language.modifier.count.characters.php count_characters (Smarty online manual)
 * @author Monte Ohrt <monte at ohrt dot com>
 * @param string  $string        input string
 * @param string  $esc_type      escape type
 * @param string  $char_set      character set, used for htmlspecialchars() or htmlentities()
 * @param boolean $double_encode encode already encoded entitites again, used for htmlspecialchars() or htmlentities()
 * @return string escaped input string
 */
function smarty_modifier_escape($string, $esc_type = 'html', $char_set = null, $double_encode = true)
{
    if (!$char_set) {
        $char_set = Smarty::$_CHARSET;
    }

    switch ($esc_type) {
        case 'html':
            return htmlspecialchars($string, ENT_QUOTES, $char_set, $double_encode);

        case 'htmlall':
            if (Smarty::$_MBSTRING) {
                // mb_convert_encoding ignores htmlspecialchars()
                $string = htmlspecialchars($string, ENT_QUOTES, $char_set, $double_encode);
                // htmlentities() won't convert everything, so use mb_convert_encoding
                return mb_convert_encoding($string, 'HTML-ENTITIES', $char_set);
            }

            // no MBString fallback
            return htmlentities($string, ENT_QUOTES, $char_set, $double_encode);

        case 'url':
            return rawurlencode($string);

        case 'urlpathinfo':
            return str_replace('%2F', '/', rawurlencode($string));

        case 'quotes':
            // escape unescaped single quotes
            return preg_replace("%(?<!\\\\)'%", "\\'", $string);

        case 'hex':
            // escape every byte into hex
            // Note that the UTF-8 encoded character ä will be represented as %c3%a4
            $return = '';
            $_length = strlen($string);
            for ($x = 0; $x < $_length; $x++) {
                $return .= '%' . bin2hex($string[$x]);
            }
            return $return;

        case 'hexentity':
            $return = '';
            if (Smarty::$_MBSTRING) {
                require_once(SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php');
                $return = '';
                foreach (smarty_mb_to_unicode($string, Smarty::$_CHARSET) as $unicode) {
                    $return .= '&#x' . strtoupper(dechex($unicode)) . ';';
                }
                return $return;
            }
            // no MBString fallback
            $_length = strlen($string);
            for ($x = 0; $x < $_length; $x++) {
                $return .= '&#x' . bin2hex($string[$x]) . ';';
            }
            return $return;

        case 'decentity':
            $return = '';
            if (Smarty::$_MBSTRING) {
                require_once(SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php');
                $return = '';
                foreach (smarty_mb_to_unicode($string, Smarty::$_CHARSET) as $unicode) {
                    $return .= '&#' . $unicode . ';';
                }
                return $return;
            }
            // no MBString fallback
            $_length = strlen($string);
            for ($x = 0; $x < $_length; $x++) {
                $return .= '&#' . ord($string[$x]) . ';';
            }
            return $return;

        case 'javascript':
            // escape quotes and backslashes, newlines, etc.
            return strtr($string, array('\\' => '\\\\', "'" => "\\'", '"' => '\\"', "\r" => '\\r', "\n" => '\\n', '</' => '<\/'));

        case 'mail':
            if (Smarty::$_MBSTRING) {
                require_once(SMARTY_PLUGINS_DIR . 'shared.mb_str_replace.php');
                return smarty_mb_str_replace(array('@', '.'), array(' [AT] ', ' [DOT] '), $string);
            }
            // no MBString fallback
            return str_replace(array('@', '.'), array(' [AT] ', ' [DOT] '), $string);

        case 'nonstd':
            // escape non-standard chars, such as ms document quotes
            $return = '';
            if (Smarty::$_MBSTRING) {
                require_once(SMARTY_PLUGINS_DIR . 'shared.mb_unicode.php');
                foreach (smarty_mb_to_unicode($string, Smarty::$_CHARSET) as $unicode) {
                    if ($unicode >= 126) {
                        $return .= '&#' . $unicode . ';';
                    } else {
                        $return .= chr($unicode);
                    }
                }
                return $return;
            }

            $_length = strlen($string);
            for ($_i = 0; $_i < $_length; $_i++) {
                $_ord = ord(substr($string, $_i, 1));
                // non-standard char, escape it
                if ($_ord >= 126) {
                    $return .= '&#' . $_ord . ';';
                } else {
                    $return .= substr($string, $_i, 1);
                }
            }
            return $return;

        default:
            return $string;
    }
}

?>

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