9.5/_indexed_search_utility_8php_source.html

<?php

namespace ‪TYPO3\CMS\IndexedSearch\Utility;


/*

 * This file is part of the TYPO3 CMS project.

 *

 * It is free software; you can redistribute it and/or modify it under

 * the terms of the GNU General Public License, either version 2

 * of the License, or any later version.

 *

 * For the full copyright and license information, please read the

 * LICENSE.txt file that was distributed with this source code.

 *

 * The TYPO3 project - inspiring people to share!

 */


class ‪IndexedSearchUtility

{

    public static function ‪isTableUsed($tableName)

    {

        $tableList = ‪$GLOBALS['TYPO3_CONF_VARS']['EXTCONF']['indexed_search']['use_tables'];

        return \TYPO3\CMS\Core\Utility\GeneralUtility::inList($tableList, $tableName);

    }


    public static function ‪md5inthash($stringToHash)

    {

        return hexdec(substr(md5($stringToHash), 0, 7));

    }


    public static function ‪getExplodedSearchString($sword, $defaultOperator, $operatorTranslateTable)

    {

        $swordArray = [];

        $sword = trim($sword);

        if ($sword) {

            $components = ‪self::split($sword);

            if (is_array($components)) {

                $i = 0;

                $lastoper = '';

                foreach ($components as $key => $val) {

                    $operator = ‪self::getOperator($val, $operatorTranslateTable);

                    if ($operator) {

                        $lastoper = $operator;

                    } elseif (strlen($val) > 1) {

                        // A searchword MUST be at least two characters long!

                        $swordArray[$i]['sword'] = $val;

                        $swordArray[$i]['oper'] = $lastoper ?: $defaultOperator;

                        $lastoper = '';

                        $i++;

                    }

                }

            }

        }

        return $swordArray;

    }


    protected static function ‪split($origSword, $specchars = '+-', $delchars = '+.,-')

    {

        $value = null;

        $sword = $origSword;

        $specs = '[' . preg_quote($specchars, '/') . ']';

        // As long as $sword is TRUE (that means $sword MUST be reduced little by little until its empty inside the loop!)

        while ($sword) {

            // There was a double-quote and we will then look for the ending quote.

            if (preg_match('/^"/', $sword)) {

                // Removes first double-quote

                $sword = preg_replace('/^"/', '', $sword);

                // Removes everything till next double-quote

                preg_match('/^[^"]*/', $sword, $reg);

                // reg[0] is the value, should not be trimmed

                $value[] = $reg[0];

                $sword = preg_replace('/^' . preg_quote($reg[0], '/') . '/', '', $sword);

                // Removes last double-quote

                $sword = trim(preg_replace('/^"/', '', $sword));

            } elseif (preg_match('/^' . $specs . '/', $sword, $reg)) {

                $value[] = $reg[0];

                // Removes = sign

                $sword = trim(preg_replace('/^' . $specs . '/', '', $sword));

            } elseif (preg_match('/[\\+\\-]/', $sword)) {

                // Check if $sword contains + or -

                // + and - shall only be interpreted as $specchars when there's whitespace before it

                // otherwise it's included in the searchword (e.g. "know-how")

                // explode $sword to single words

                $a_sword = explode(' ', $sword);

                // get first word

                $word = array_shift($a_sword);

                // Delete $delchars at end of string

                $word = rtrim($word, $delchars);

                // add searchword to values

                $value[] = $word;

                // re-build $sword

                $sword = implode(' ', $a_sword);

            } else {

                // There are no double-quotes around the value. Looking for next (space) or special char.

                preg_match('/^[^ ' . preg_quote($specchars, '/') . ']*/', $sword, $reg);

                // Delete $delchars at end of string

                $word = rtrim(trim($reg[0]), $delchars);

                $value[] = $word;

                $sword = trim(preg_replace('/^' . preg_quote($reg[0], '/') . '/', '', $sword));

            }

        }

        return $value;

    }


    protected static function ‪getOperator($operator, $operatorTranslateTable)

    {

        $operator = trim($operator);

        // case-conversion is charset insensitive, but it doesn't spoil

        // anything if input string AND operator table is already converted

        $operator = strtolower($operator);

        foreach ($operatorTranslateTable as $key => $val) {

            $item = $operatorTranslateTable[$key][0];

            // See note above.

            $item = strtolower($item);

            if ($operator == $item) {

                return $operatorTranslateTable[$key][1];

            }

        }

    }

}