first version

tools/parser_sql/processors/SelectProcessor.php

@@ -0,0 +1,86 @@
+<?php
+/**
+ * SelectProcessor.php
+ *
+ * This file implements the processor for the SELECT statements.
+ *
+ * Copyright (c) 2010-2012, Justin Swanhart
+ * with contributions by André Rothe <arothe@phosco.info, phosco@gmx.de>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright notice,
+ *     this list of conditions and the following disclaimer.
+ *   * Redistributions in binary form must reproduce the above copyright notice,
+ *     this list of conditions and the following disclaimer in the documentation
+ *     and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
+ * SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+ * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ */
+
+require_once(dirname(__FILE__) . '/SelectExpressionProcessor.php');
+
+/**
+ * 
+ * This class processes the SELECT statements.
+ * 
+ * @author arothe
+ * 
+ */
+class SelectProcessor extends SelectExpressionProcessor {
+
+    public function process($tokens) {
+        $expression = "";
+        $expressionList = array();
+        foreach ($tokens as $token) {
+            if ($this->isCommaToken($token)) {
+                $expression = parent::process(trim($expression));
+                $expression['delim'] = ',';
+                $expressionList[] = $expression;
+                $expression = "";
+            } else {
+                switch (strtoupper($token)) {
+
+                // add more SELECT options here
+                case 'DISTINCT':
+                case 'DISTINCTROW':
+                case 'HIGH_PRIORITY':
+                case 'SQL_CACHE':
+                case 'SQL_NO_CACHE':
+                case 'SQL_CALC_FOUND_ROWS':
+                case 'STRAIGHT_JOIN':
+                case 'SQL_SMALL_RESULT':
+                case 'SQL_BIG_RESULT':
+                case 'SQL_BUFFER_RESULT':
+                    $expression = parent::process(trim($token));
+                    $expression['delim'] = ' ';
+                    $expressionList[] = $expression;
+                    $expression = "";
+                    break;
+
+                default:
+                    $expression .= $token;
+                }
+            }
+        }
+        if ($expression) {
+            $expression = parent::process(trim($expression));
+            $expression['delim'] = false;
+            $expressionList[] = $expression;
+        }
+        return $expressionList;
+    }
+}
+?>