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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Directory :  /home/akaindir/www/crm/libraries/htmlpurifier/library/HTMLPurifier/VarParser/

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Current File : /home/akaindir/www/crm/libraries/htmlpurifier/library/HTMLPurifier/VarParser/Flexible.php
<?php

/**
 * Performs safe variable parsing based on types which can be used by
 * users. This may not be able to represent all possible data inputs,
 * however.
 */
class HTMLPurifier_VarParser_Flexible extends HTMLPurifier_VarParser
{

    protected function parseImplementation($var, $type, $allow_null) {
        if ($allow_null && $var === null) return null;
        switch ($type) {
            // Note: if code "breaks" from the switch, it triggers a generic
            // exception to be thrown. Specific errors can be specifically
            // done here.
            case self::MIXED :
            case self::ISTRING :
            case self::STRING :
            case self::TEXT :
            case self::ITEXT :
                return $var;
            case self::INT :
                if (is_string($var) && ctype_digit($var)) $var = (int) $var;
                return $var;
            case self::FLOAT :
                if ((is_string($var) && is_numeric($var)) || is_int($var)) $var = (float) $var;
                return $var;
            case self::BOOL :
                if (is_int($var) && ($var === 0 || $var === 1)) {
                    $var = (bool) $var;
                } elseif (is_string($var)) {
                    if ($var == 'on' || $var == 'true' || $var == '1') {
                        $var = true;
                    } elseif ($var == 'off' || $var == 'false' || $var == '0') {
                        $var = false;
                    } else {
                        throw new HTMLPurifier_VarParserException("Unrecognized value '$var' for $type");
                    }
                }
                return $var;
            case self::ALIST :
            case self::HASH :
            case self::LOOKUP :
                if (is_string($var)) {
                    // special case: technically, this is an array with
                    // a single empty string item, but having an empty
                    // array is more intuitive
                    if ($var == '') return array();
                    if (strpos($var, "\n") === false && strpos($var, "\r") === false) {
                        // simplistic string to array method that only works
                        // for simple lists of tag names or alphanumeric characters
                        $var = explode(',',$var);
                    } else {
                        $var = preg_split('/(,|[\n\r]+)/', $var);
                    }
                    // remove spaces
                    foreach ($var as $i => $j) $var[$i] = trim($j);
                    if ($type === self::HASH) {
                        // key:value,key2:value2
                        $nvar = array();
                        foreach ($var as $keypair) {
                            $c = explode(':', $keypair, 2);
                            if (!isset($c[1])) continue;
                            $nvar[$c[0]] = $c[1];
                        }
                        $var = $nvar;
                    }
                }
                if (!is_array($var)) break;
                $keys = array_keys($var);
                if ($keys === array_keys($keys)) {
                    if ($type == self::ALIST) return $var;
                    elseif ($type == self::LOOKUP) {
                        $new = array();
                        foreach ($var as $key) {
                            $new[$key] = true;
                        }
                        return $new;
                    } else break;
                }
                if ($type === self::LOOKUP) {
                    foreach ($var as $key => $value) {
                        $var[$key] = true;
                    }
                }
                return $var;
            default:
                $this->errorInconsistent(__CLASS__, $type);
        }
        $this->errorGeneric($var, $type);
    }

}

// vim: et sw=4 sts=4

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