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<?php
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/**
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 * Allows multiple validators to attempt to validate attribute.
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 *
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 * Composite is just what it sounds like: a composite of many validators.
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 * This means that multiple HTMLPurifier_AttrDef objects will have a whack
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 * at the string.  If one of them passes, that's what is returned.  This is
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 * especially useful for CSS values, which often are a choice between
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 * an enumerated set of predefined values or a flexible data type.
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 */
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class HTMLPurifier_AttrDef_CSS_Composite extends HTMLPurifier_AttrDef
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{
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    /**
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     * List of objects that may process strings.
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     * @type HTMLPurifier_AttrDef[]
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     * @todo Make protected
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     */
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    public $defs;
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    /**
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     * @param HTMLPurifier_AttrDef[] $defs List of HTMLPurifier_AttrDef objects
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     */
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    public function __construct($defs)
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    {
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        $this->defs = $defs;
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    }
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    /**
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     * @param string $string
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     * @param HTMLPurifier_Config $config
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     * @param HTMLPurifier_Context $context
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     * @return bool|string
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     */
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    public function validate($string, $config, $context)
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    {
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        foreach ($this->defs as $i => $def) {
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            $result = $this->defs[$i]->validate($string, $config, $context);
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            if ($result !== false) {
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                return $result;
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            }
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        }
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        return false;
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    }
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}
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// vim: et sw=4 sts=4