remove autoload section in composer.json

[github/wallabag/wallabag.git] / inc / 3rdparty / htmlpurifier / HTMLPurifier / HTMLModule / Tidy.php

<?php\r
\r
/**\r
 * Abstract class for a set of proprietary modules that clean up (tidy)\r
 * poorly written HTML.\r
 * @todo Figure out how to protect some of these methods/properties\r
 */\r
class HTMLPurifier_HTMLModule_Tidy extends HTMLPurifier_HTMLModule\r
{\r
    /**\r
     * List of supported levels.\r
     * Index zero is a special case "no fixes" level.\r
     * @type array\r
     */\r
    public $levels = array(0 => 'none', 'light', 'medium', 'heavy');\r
\r
    /**\r
     * Default level to place all fixes in.\r
     * Disabled by default.\r
     * @type string\r
     */\r
    public $defaultLevel = null;\r
\r
    /**\r
     * Lists of fixes used by getFixesForLevel().\r
     * Format is:\r
     *      HTMLModule_Tidy->fixesForLevel[$level] = array('fix-1', 'fix-2');\r
     * @type array\r
     */\r
    public $fixesForLevel = array(\r
        'light' => array(),\r
        'medium' => array(),\r
        'heavy' => array()\r
    );\r
\r
    /**\r
     * Lazy load constructs the module by determining the necessary\r
     * fixes to create and then delegating to the populate() function.\r
     * @param HTMLPurifier_Config $config\r
     * @todo Wildcard matching and error reporting when an added or\r
     *       subtracted fix has no effect.\r
     */\r
    public function setup($config)\r
    {\r
        // create fixes, initialize fixesForLevel\r
        $fixes = $this->makeFixes();\r
        $this->makeFixesForLevel($fixes);\r
\r
        // figure out which fixes to use\r
        $level = $config->get('HTML.TidyLevel');\r
        $fixes_lookup = $this->getFixesForLevel($level);\r
\r
        // get custom fix declarations: these need namespace processing\r
        $add_fixes = $config->get('HTML.TidyAdd');\r
        $remove_fixes = $config->get('HTML.TidyRemove');\r
\r
        foreach ($fixes as $name => $fix) {\r
            // needs to be refactored a little to implement globbing\r
            if (isset($remove_fixes[$name]) ||\r
                (!isset($add_fixes[$name]) && !isset($fixes_lookup[$name]))) {\r
                unset($fixes[$name]);\r
            }\r
        }\r
\r
        // populate this module with necessary fixes\r
        $this->populate($fixes);\r
    }\r
\r
    /**\r
     * Retrieves all fixes per a level, returning fixes for that specific\r
     * level as well as all levels below it.\r
     * @param string $level level identifier, see $levels for valid values\r
     * @return array Lookup up table of fixes\r
     */\r
    public function getFixesForLevel($level)\r
    {\r
        if ($level == $this->levels[0]) {\r
            return array();\r
        }\r
        $activated_levels = array();\r
        for ($i = 1, $c = count($this->levels); $i < $c; $i++) {\r
            $activated_levels[] = $this->levels[$i];\r
            if ($this->levels[$i] == $level) {\r
                break;\r
            }\r
        }\r
        if ($i == $c) {\r
            trigger_error(\r
                'Tidy level ' . htmlspecialchars($level) . ' not recognized',\r
                E_USER_WARNING\r
            );\r
            return array();\r
        }\r
        $ret = array();\r
        foreach ($activated_levels as $level) {\r
            foreach ($this->fixesForLevel[$level] as $fix) {\r
                $ret[$fix] = true;\r
            }\r
        }\r
        return $ret;\r
    }\r
\r
    /**\r
     * Dynamically populates the $fixesForLevel member variable using\r
     * the fixes array. It may be custom overloaded, used in conjunction\r
     * with $defaultLevel, or not used at all.\r
     * @param array $fixes\r
     */\r
    public function makeFixesForLevel($fixes)\r
    {\r
        if (!isset($this->defaultLevel)) {\r
            return;\r
        }\r
        if (!isset($this->fixesForLevel[$this->defaultLevel])) {\r
            trigger_error(\r
                'Default level ' . $this->defaultLevel . ' does not exist',\r
                E_USER_ERROR\r
            );\r
            return;\r
        }\r
        $this->fixesForLevel[$this->defaultLevel] = array_keys($fixes);\r
    }\r
\r
    /**\r
     * Populates the module with transforms and other special-case code\r
     * based on a list of fixes passed to it\r
     * @param array $fixes Lookup table of fixes to activate\r
     */\r
    public function populate($fixes)\r
    {\r
        foreach ($fixes as $name => $fix) {\r
            // determine what the fix is for\r
            list($type, $params) = $this->getFixType($name);\r
            switch ($type) {\r
                case 'attr_transform_pre':\r
                case 'attr_transform_post':\r
                    $attr = $params['attr'];\r
                    if (isset($params['element'])) {\r
                        $element = $params['element'];\r
                        if (empty($this->info[$element])) {\r
                            $e = $this->addBlankElement($element);\r
                        } else {\r
                            $e = $this->info[$element];\r
                        }\r
                    } else {\r
                        $type = "info_$type";\r
                        $e = $this;\r
                    }\r
                    // PHP does some weird parsing when I do\r
                    // $e->$type[$attr], so I have to assign a ref.\r
                    $f =& $e->$type;\r
                    $f[$attr] = $fix;\r
                    break;\r
                case 'tag_transform':\r
                    $this->info_tag_transform[$params['element']] = $fix;\r
                    break;\r
                case 'child':\r
                case 'content_model_type':\r
                    $element = $params['element'];\r
                    if (empty($this->info[$element])) {\r
                        $e = $this->addBlankElement($element);\r
                    } else {\r
                        $e = $this->info[$element];\r
                    }\r
                    $e->$type = $fix;\r
                    break;\r
                default:\r
                    trigger_error("Fix type $type not supported", E_USER_ERROR);\r
                    break;\r
            }\r
        }\r
    }\r
\r
    /**\r
     * Parses a fix name and determines what kind of fix it is, as well\r
     * as other information defined by the fix\r
     * @param $name String name of fix\r
     * @return array(string $fix_type, array $fix_parameters)\r
     * @note $fix_parameters is type dependant, see populate() for usage\r
     *       of these parameters\r
     */\r
    public function getFixType($name)\r
    {\r
        // parse it\r
        $property = $attr = null;\r
        if (strpos($name, '#') !== false) {\r
            list($name, $property) = explode('#', $name);\r
        }\r
        if (strpos($name, '@') !== false) {\r
            list($name, $attr) = explode('@', $name);\r
        }\r
\r
        // figure out the parameters\r
        $params = array();\r
        if ($name !== '') {\r
            $params['element'] = $name;\r
        }\r
        if (!is_null($attr)) {\r
            $params['attr'] = $attr;\r
        }\r
\r
        // special case: attribute transform\r
        if (!is_null($attr)) {\r
            if (is_null($property)) {\r
                $property = 'pre';\r
            }\r
            $type = 'attr_transform_' . $property;\r
            return array($type, $params);\r
        }\r
\r
        // special case: tag transform\r
        if (is_null($property)) {\r
            return array('tag_transform', $params);\r
        }\r
\r
        return array($property, $params);\r
\r
    }\r
\r
    /**\r
     * Defines all fixes the module will perform in a compact\r
     * associative array of fix name to fix implementation.\r
     * @return array\r
     */\r
    public function makeFixes()\r
    {\r
    }\r
}\r
\r
// vim: et sw=4 sts=4\r