101 lines
3.8 KiB
PHP
101 lines
3.8 KiB
PHP
<?php
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/**
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* BracketProcessor.php
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*
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* This file implements the processor for the parentheses around the statements.
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*
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* PHP version 5
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*
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* LICENSE:
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* Copyright (c) 2010-2014 Justin Swanhart and André Rothe
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* @author André Rothe <andre.rothe@phosco.info>
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* @copyright 2010-2014 Justin Swanhart and André Rothe
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
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* @version SVN: $Id$
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*
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*/
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namespace PHPSQLParser\processors;
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use PHPSQLParser\utils\ExpressionType;
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/**
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* This class processes the parentheses around the statement.
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*
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* @author André Rothe <andre.rothe@phosco.info>
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* @license http://www.debian.org/misc/bsd.license BSD License (3 Clause)
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*
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*/
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class BracketProcessor extends AbstractProcessor {
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protected function processTopLevel($sql) {
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$processor = new DefaultProcessor($this->options);
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return $processor->process($sql);
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}
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public function process($tokens) {
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$token = $this->removeParenthesisFromStart($tokens[0]);
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$subtree = $this->processTopLevel($token);
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$remainingExpressions = $this->getRemainingNotBracketExpression($subtree);
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if (isset($subtree['BRACKET'])) {
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$subtree = $subtree['BRACKET'];
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}
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if (isset($subtree['SELECT'])) {
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$subtree = array(
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array('expr_type' => ExpressionType::QUERY, 'base_expr' => $token, 'sub_tree' => $subtree));
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}
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return array(
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array('expr_type' => ExpressionType::BRACKET_EXPRESSION, 'base_expr' => trim($tokens[0]),
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'sub_tree' => $subtree, 'remaining_expressions' => $remainingExpressions));
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}
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private function getRemainingNotBracketExpression($subtree)
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{
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// https://github.com/greenlion/PHP-SQL-Parser/issues/279
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// https://github.com/sinri/PHP-SQL-Parser/commit/eac592a0e19f1df6f420af3777a6d5504837faa7
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// as there is no pull request for 279 by the user. His solution works and tested.
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if (empty($subtree)) $subtree = array();// as a fix by Sinri 20180528
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$remainingExpressions = array();
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$ignoredKeys = array('BRACKET', 'SELECT', 'FROM');
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$subtreeKeys = array_keys($subtree);
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foreach($subtreeKeys as $key) {
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if(!in_array($key, $ignoredKeys)) {
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$remainingExpressions[$key] = $subtree[$key];
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}
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}
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return $remainingExpressions;
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}
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}
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?>
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