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/public_html/crm/libraries/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/

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Current File : /home/akaindir/public_html/crm/libraries/htmlpurifier/library/HTMLPurifier/AttrDef/CSS/Filter.php
<?php

/**
 * Microsoft's proprietary filter: CSS property
 * @note Currently supports the alpha filter. In the future, this will
 *       probably need an extensible framework
 */
class HTMLPurifier_AttrDef_CSS_Filter extends HTMLPurifier_AttrDef
{

    protected $intValidator;

    public function __construct() {
        $this->intValidator = new HTMLPurifier_AttrDef_Integer();
    }

    public function validate($value, $config, $context) {
        $value = $this->parseCDATA($value);
        if ($value === 'none') return $value;
        // if we looped this we could support multiple filters
        $function_length = strcspn($value, '(');
        $function = trim(substr($value, 0, $function_length));
        if ($function !== 'alpha' &&
            $function !== 'Alpha' &&
            $function !== 'progid:DXImageTransform.Microsoft.Alpha'
            ) return false;
        $cursor = $function_length + 1;
        $parameters_length = strcspn($value, ')', $cursor);
        $parameters = substr($value, $cursor, $parameters_length);
        $params = explode(',', $parameters);
        $ret_params = array();
        $lookup = array();
        foreach ($params as $param) {
            list($key, $value) = explode('=', $param);
            $key   = trim($key);
            $value = trim($value);
            if (isset($lookup[$key])) continue;
            if ($key !== 'opacity') continue;
            $value = $this->intValidator->validate($value, $config, $context);
            if ($value === false) continue;
            $int = (int) $value;
            if ($int > 100) $value = '100';
            if ($int < 0) $value = '0';
            $ret_params[] = "$key=$value";
            $lookup[$key] = true;
        }
        $ret_parameters = implode(',', $ret_params);
        $ret_function = "$function($ret_parameters)";
        return $ret_function;
    }

}

// vim: et sw=4 sts=4

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