87 lines
3.1 KiB
PHP
87 lines
3.1 KiB
PHP
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<?php
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/**
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* SelectProcessor.php
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*
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* This file implements the processor for the SELECT statements.
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*
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* Copyright (c) 2010-2012, Justin Swanhart
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* with contributions by André Rothe <arothe@phosco.info, phosco@gmx.de>
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*
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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 modification,
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* are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
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* DAMAGE.
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*/
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require_once(dirname(__FILE__) . '/SelectExpressionProcessor.php');
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/**
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*
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* This class processes the SELECT statements.
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*
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* @author arothe
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*
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*/
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class SelectProcessor extends SelectExpressionProcessor {
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public function process($tokens) {
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$expression = "";
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$expressionList = array();
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foreach ($tokens as $token) {
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if ($this->isCommaToken($token)) {
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$expression = parent::process(trim($expression));
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$expression['delim'] = ',';
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$expressionList[] = $expression;
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$expression = "";
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} else {
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switch (strtoupper($token)) {
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// add more SELECT options here
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case 'DISTINCT':
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case 'DISTINCTROW':
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case 'HIGH_PRIORITY':
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case 'SQL_CACHE':
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case 'SQL_NO_CACHE':
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case 'SQL_CALC_FOUND_ROWS':
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case 'STRAIGHT_JOIN':
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case 'SQL_SMALL_RESULT':
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case 'SQL_BIG_RESULT':
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case 'SQL_BUFFER_RESULT':
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$expression = parent::process(trim($token));
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$expression['delim'] = ' ';
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$expressionList[] = $expression;
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$expression = "";
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break;
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default:
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$expression .= $token;
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}
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}
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}
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if ($expression) {
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$expression = parent::process(trim($expression));
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$expression['delim'] = false;
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$expressionList[] = $expression;
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}
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return $expressionList;
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}
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}
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?>
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