150 lines
5.5 KiB
PHP
150 lines
5.5 KiB
PHP
<?php
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/**
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* ValuesProcessor.php
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*
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* This file implements the processor for the VALUES 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 VALUES statements.
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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 ValuesProcessor extends AbstractProcessor {
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protected function processExpressionList($unparsed) {
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$processor = new ExpressionListProcessor($this->options);
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return $processor->process($unparsed);
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}
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protected function processRecord($unparsed) {
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$processor = new RecordProcessor($this->options);
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return $processor->process($unparsed);
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}
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public function process($tokens) {
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$currCategory = '';
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$parsed = array();
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$base_expr = '';
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foreach ($tokens['VALUES'] as $k => $v) {
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if ($this->isCommentToken($v)) {
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$parsed[] = parent::processComment($v);
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continue;
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}
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$base_expr .= $v;
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$trim = trim($v);
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if ($this->isWhitespaceToken($v)) {
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continue;
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}
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$upper = strtoupper($trim);
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switch ($upper) {
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case 'ON':
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if ($currCategory === '') {
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$base_expr = trim(substr($base_expr, 0, -strlen($v)));
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$parsed[] = array('expr_type' => ExpressionType::RECORD, 'base_expr' => $base_expr,
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'data' => $this->processRecord($base_expr), 'delim' => false);
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$base_expr = '';
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$currCategory = 'DUPLICATE';
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$parsed[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
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}
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// else ?
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break;
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case 'DUPLICATE':
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case 'KEY':
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case 'UPDATE':
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if ($currCategory === 'DUPLICATE') {
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$parsed[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
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$base_expr = '';
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}
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// else ?
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break;
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case ',':
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if ($currCategory === 'DUPLICATE') {
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$base_expr = trim(substr($base_expr, 0, -strlen($v)));
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$res = $this->processExpressionList($this->splitSQLIntoTokens($base_expr));
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$parsed[] = array('expr_type' => ExpressionType::EXPRESSION, 'base_expr' => $base_expr,
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'sub_tree' => (empty($res) ? false : $res), 'delim' => $trim);
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$base_expr = '';
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continue 2;
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}
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$parsed[] = array('expr_type' => ExpressionType::RECORD, 'base_expr' => trim($base_expr),
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'data' => $this->processRecord(trim($base_expr)), 'delim' => $trim);
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$base_expr = '';
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break;
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default:
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break;
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}
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}
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if (trim($base_expr) !== '') {
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if ($currCategory === '') {
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$parsed[] = array('expr_type' => ExpressionType::RECORD, 'base_expr' => trim($base_expr),
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'data' => $this->processRecord(trim($base_expr)), 'delim' => false);
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}
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if ($currCategory === 'DUPLICATE') {
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$res = $this->processExpressionList($this->splitSQLIntoTokens($base_expr));
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$parsed[] = array('expr_type' => ExpressionType::EXPRESSION, 'base_expr' => trim($base_expr),
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'sub_tree' => (empty($res) ? false : $res), 'delim' => false);
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}
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}
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$tokens['VALUES'] = $parsed;
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return $tokens;
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}
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}
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?>
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