class.ilLangDeprecated.php

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<?php

/* Copyright (c) 1998-2016 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilLangDeprecated
{
        const ILIAS_CLASS_FILE_RE = 'class\..*\.php$';

        protected $candidates = array();

        public function __construct()
        {
                global $DIC;

                $this->db = $DIC->database();
        }

        public function getDeprecatedLangVars()
        {
                $this->getCandidates();
                $this->parseCodeFiles();
                return $this->candidates;
        }

        protected function getCandidates()
        {
                $this->candidates = array();

                $log = array();
                $set = $this->db->query("SELECT module, identifier FROM lng_log ");
                while ($rec = $this->db->fetchAssoc($set))
                {
                        $log[$rec["module"].":".$rec["identifier"]] = 1;
                }
                $set = $this->db->query("SELECT module, identifier FROM lng_data WHERE lang_key = ".
                        $this->db->quote("en", "text")." ORDER BY module, identifier");
                while ($rec = $this->db->fetchAssoc($set))
                {
                        if (!isset($log[$rec["module"].":".$rec["identifier"]]))
                        {
                                $this->candidates[$rec["identifier"]] = $rec["module"];
                        }
                }
        }

        protected function parseCodeFiles()
        {
                foreach ($this->getCodeFiles(ILIAS_ABSOLUTE_PATH) as $file)
                {
                        $this->parseCodeFile($file->getPathname());
                }
        }

        protected function getCodeFiles($path)
        {
                foreach (
                        new \RegexIterator(
                                new \RecursiveIteratorIterator(
                                        new \RecursiveDirectoryIterator($path),
                                        \RecursiveIteratorIterator::SELF_FIRST,
                                        \RecursiveIteratorIterator::CATCH_GET_CHILD
                                ), '/' . self::ILIAS_CLASS_FILE_RE . '/i'
                        ) as $file
                ) {
                        yield $file;
                }
        }

        protected function parseCodeFile($file_path)
        {
                $tokens = token_get_all(file_get_contents($file_path));

                /*if (is_int(strpos($file_path, "TrackingItemsTableGUI")))
                {
                        $transl = array_map(function($e) {
                                return array(token_name($e[0]), $e[1], $e[2]);
                        }, $tokens);

                        var_dump($transl); exit;
                }*/

                $num_tokens = count($tokens);

                for ($i = 0; $i < $num_tokens; $i++) {
                        if (is_string($tokens[$i])) {
                                continue;
                        }

                        $token = $tokens[$i][0];
                        switch ($token) {

                                case T_STRING:
                                case T_CONSTANT_ENCAPSED_STRING:
                                        $lv = str_replace(array("'", '"'), "", $tokens[$i][1]);
                                        if ($lv != "") {
                                                unset($this->candidates[$lv]);
                                        }
                                        break;
                        }
                }
        }


}

?>