update parser_sql
This commit is contained in:
shreesh arora
@@ -4,47 +4,56 @@
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*
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* This file implements the processor for the base SQL 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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* 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 modification,
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* are permitted provided that the following conditions are met:
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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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* * 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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* 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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* 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__) . '/AbstractProcessor.php');
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require_once(dirname(__FILE__) . '/SQLChunkProcessor.php');
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namespace PHPSQLParser\processors;
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/**
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*
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* This class processes the base SQL statements.
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*
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* @author arothe
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*
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*
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* @author André Rothe <andre.rothe@phosco.info>
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* @author Marco Th. <marco64th@gmail.com>
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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 SQLProcessor extends SQLChunkProcessor {
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/*
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/**
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* This function breaks up the SQL statement into logical sections.
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* Some sections are then further handled by specialized processors.
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* Some sections are delegated to specialized processors.
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*/
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public function process($tokens) {
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$prev_category = "";
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@@ -52,15 +61,24 @@ class SQLProcessor extends SQLChunkProcessor {
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$skip_next = 0;
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$out = false;
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$tokenCount = count($tokens);
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// $tokens may come as a numeric indexed array starting with an index greater than 0 (or as a boolean)
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$tokenCount = count($tokens);
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if ( is_array($tokens) ){
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$tokens = array_values($tokens);
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}
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for ($tokenNumber = 0; $tokenNumber < $tokenCount; ++$tokenNumber) {
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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 (!isset($tokens[$tokenNumber])) continue;// as a fix by Sinri 20180528
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$token = $tokens[$tokenNumber];
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$trim = trim($token); // this removes also \n and \t!
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// if it starts with an "(", it should follow a SELECT
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if ($trim !== "" && $trim[0] === "(" && $token_category === "") {
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$token_category = 'SELECT';
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$token_category = 'BRACKET';
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$prev_category = $token_category;
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}
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/*
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@@ -68,12 +86,12 @@ class SQLProcessor extends SQLChunkProcessor {
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*/
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if ($skip_next > 0) {
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if ($trim === "") {
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if ($token_category !== "") { # is this correct??
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if ($token_category !== "") { // is this correct??
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$out[$token_category][] = $token;
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}
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continue;
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}
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#to skip the token we replace it with whitespace
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// to skip the token we replace it with whitespace
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$trim = "";
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$token = "";
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$skip_next--;
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@@ -88,7 +106,6 @@ class SQLProcessor extends SQLChunkProcessor {
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/* Tokens that get their own sections. These keywords have subclauses. */
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case 'SELECT':
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case 'ORDER':
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case 'DUPLICATE':
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case 'VALUES':
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case 'GROUP':
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case 'HAVING':
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@@ -110,6 +127,9 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'PURGE':
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case 'EXECUTE':
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case 'PREPARE':
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$token_category = $upper;
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break;
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case 'DEALLOCATE':
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if ($trim === 'DEALLOCATE') {
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$skip_next = 1;
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@@ -117,6 +137,12 @@ class SQLProcessor extends SQLChunkProcessor {
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$token_category = $upper;
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break;
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case 'DUPLICATE':
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if ($token_category !== 'VALUES') {
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$token_category = $upper;
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}
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break;
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case 'SET':
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if ($token_category !== 'TABLE') {
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$token_category = $upper;
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@@ -125,21 +151,21 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'LIMIT':
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case 'PLUGIN':
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# no separate section
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// no separate section
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if ($token_category === 'SHOW') {
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continue;
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break;
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}
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$token_category = $upper;
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break;
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case 'FROM':
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# this FROM is different from FROM in other DML (not join related)
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// this FROM is different from FROM in other DML (not join related)
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if ($token_category === 'PREPARE') {
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continue 2;
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}
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# no separate section
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// no separate section
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if ($token_category === 'SHOW') {
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continue;
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break;
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}
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$token_category = $upper;
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break;
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@@ -149,7 +175,7 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'SHOW':
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$token_category = $upper;
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break;
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case 'DESC':
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if ($token_category === '') {
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// short version of DESCRIBE
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@@ -159,18 +185,16 @@ class SQLProcessor extends SQLChunkProcessor {
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break;
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case 'RENAME':
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// jump over TABLE keyword
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$token_category = $upper;
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$skip_next = 1;
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continue 2;
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break;
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case 'DATABASE':
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case 'SCHEMA':
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if ($prev_category === 'DROP') {
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continue;
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break;
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}
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if ($prev_category === 'SHOW') {
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continue;
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break;
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}
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$token_category = $upper;
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break;
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@@ -192,10 +216,10 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'INTO':
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// prevent wrong handling of CACHE within LOAD INDEX INTO CACHE...
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if ($prev_category === 'LOAD') {
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$out[$prev_category][] = $upper;
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$out[$prev_category][] = $trim;
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continue 2;
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}
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$token_category = $upper;
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$token_category = $prev_category = $upper;
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break;
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case 'USER':
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@@ -234,60 +258,74 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'CHECKSUM':
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case 'REPAIR':
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case 'RESTORE':
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case 'USE':
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case 'HELP':
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$token_category = $upper;
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// set the category in case these get subclauses in a future version of MySQL
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$out[$upper][0] = $upper;
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$out[$upper][0] = $trim;
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continue 2;
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case 'REPLACE':
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if ($prev_category === 'TABLE') {
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# part of the CREATE TABLE statement
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$out[$prev_category][] = $upper;
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continue 2;
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}
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// set the category in case these get subclauses in a future version of MySQL
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$token_category = $upper;
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$out[$upper][0] = $upper;
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if ($prev_category === '') {
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// set the category in case these get subclauses in a future version of MySQL
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$token_category = $upper;
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$out[$upper][0] = $trim;
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continue 2;
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}
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// part of the CREATE TABLE statement or a function
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$out[$prev_category][] = $trim;
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continue 2;
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case 'IGNORE':
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if ($prev_category === 'TABLE') {
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# part of the CREATE TABLE statement
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$out[$prev_category][] = $upper;
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// part of the CREATE TABLE statement
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$out[$prev_category][] = $trim;
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continue 2;
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}
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if ($token_category === 'FROM') {
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// part of the FROM statement (index hint)
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$out[$token_category][] = $trim;
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continue 2;
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}
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$out['OPTIONS'][] = $upper;
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continue 2;
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break;
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case 'CHECK':
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if ($prev_category === 'TABLE') {
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$out[$prev_category][] = $upper;
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$out[$prev_category][] = $trim;
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continue 2;
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}
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$token_category = $upper;
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$out[$upper][0] = $upper;
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$out[$upper][0] = $trim;
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continue 2;
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case 'CREATE':
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if ($prev_category === 'SHOW') {
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continue;
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break;
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}
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$token_category = $upper;
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break;
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case 'INDEX':
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if ( in_array( $prev_category, array( 'CREATE', 'DROP' ) ) ) {
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$out[ $prev_category ][] = $trim;
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$token_category = $upper;
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}
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break;
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case 'TABLE':
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if ($prev_category === 'CREATE') {
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$out[$prev_category][] = $upper;
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$out[$prev_category][] = $trim;
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$token_category = $upper;
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}
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if ($prev_category === 'TRUNCATE') {
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$out[$prev_category][] = $trim;
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$token_category = $upper;
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}
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break;
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case 'TEMPORARY':
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if ($prev_category === 'CREATE') {
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$out[$prev_category][] = $upper;
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$out[$prev_category][] = $trim;
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$token_category = $prev_category;
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continue 2;
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}
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@@ -298,7 +336,7 @@ class SQLProcessor extends SQLChunkProcessor {
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$token_category = 'CREATE';
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$out[$token_category] = array_merge($out[$token_category], $out[$prev_category]);
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$out[$prev_category] = array();
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$out[$token_category][] = $upper;
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$out[$token_category][] = $trim;
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$prev_category = $token_category;
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continue 2;
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}
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@@ -307,14 +345,14 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'NOT':
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if ($prev_category === 'CREATE') {
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$token_category = $prev_category;
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$out[$prev_category][] = $upper;
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$out[$prev_category][] = $trim;
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continue 2;
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}
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break;
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case 'EXISTS':
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if ($prev_category === 'CREATE') {
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$out[$prev_category][] = $upper;
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$out[$prev_category][] = $trim;
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$prev_category = $token_category = 'TABLE';
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continue 2;
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}
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@@ -322,7 +360,7 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'CACHE':
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if ($prev_category === "" || $prev_category === 'RESET' || $prev_category === 'FLUSH'
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|| $prev_category === 'LOAD') {
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|| $prev_category === 'LOAD') {
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$token_category = $upper;
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continue 2;
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}
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@@ -332,14 +370,15 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'LOCK':
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if ($token_category === "") {
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$token_category = $upper;
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$out[$upper][0] = $upper;
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$out[$upper][0] = $trim;
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} elseif ($token_category === 'INDEX') {
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break;
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} else {
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$trim = 'LOCK IN SHARE MODE';
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$skip_next = 3;
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$out['OPTIONS'][] = $trim;
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}
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continue 2;
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break;
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case 'USING': /* USING in FROM clause is different from USING w/ prepared statement*/
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if ($token_category === 'EXECUTE') {
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@@ -362,12 +401,11 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'FOR':
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if ($prev_category === 'SHOW') {
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continue;
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break;
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}
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$skip_next = 1;
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$out['OPTIONS'][] = 'FOR UPDATE';
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$out['OPTIONS'][] = 'FOR UPDATE'; // TODO: this could be generate problems within the position calculator
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continue 2;
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break;
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case 'UPDATE':
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if ($token_category === "") {
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@@ -381,22 +419,30 @@ class SQLProcessor extends SQLChunkProcessor {
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case 'START':
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$trim = "BEGIN";
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$out[$upper][0] = $upper;
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$out[$upper][0] = $upper; // TODO: this could be generate problems within the position calculator
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$skip_next = 1;
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break;
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/* These tokens are ignored. */
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// This token is ignored, except within RENAME
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case 'TO':
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if ($token_category === 'RENAME') {
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break;
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}
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continue 2;
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// This token is ignored, except within CREATE TABLE
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case 'BY':
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if ($prev_category === 'TABLE') {
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break;
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}
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continue 2;
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// These tokens are ignored.
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case 'ALL':
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case 'SHARE':
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case 'MODE':
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case ';':
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continue 2;
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break;
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case 'KEY':
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if ($token_category === 'DUPLICATE') {
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@@ -404,21 +450,43 @@ class SQLProcessor extends SQLChunkProcessor {
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}
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break;
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/* These tokens set particular options for the statement. They never stand alone. */
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/* These tokens set particular options for the statement. */
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case 'LOW_PRIORITY':
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case 'DELAYED':
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case 'FORCE':
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case 'QUICK':
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$out['OPTIONS'][] = $upper;
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case 'HIGH_PRIORITY':
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$out['OPTIONS'][] = $trim;
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continue 2;
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case 'USE':
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if ($token_category === 'FROM') {
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// index hint within FROM clause
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$out[$token_category][] = $trim;
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continue 2;
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}
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// set the category in case these get subclauses in a future version of MySQL
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$token_category = $upper;
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$out[$upper][0] = $trim;
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continue 2;
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case 'FORCE':
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if ($token_category === 'FROM') {
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// index hint within FROM clause
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$out[$token_category][] = $trim;
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continue 2;
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}
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$out['OPTIONS'][] = $trim;
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continue 2;
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break;
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case 'WITH':
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if ($token_category === 'GROUP') {
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$skip_next = 1;
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$out['OPTIONS'][] = 'WITH ROLLUP';
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$out['OPTIONS'][] = 'WITH ROLLUP'; // TODO: this could be generate problems within the position calculator
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continue 2;
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}
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if ($token_category === '') {
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$token_category = $upper;
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}
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break;
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case 'AS':
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@@ -426,7 +494,6 @@ class SQLProcessor extends SQLChunkProcessor {
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case '':
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case ',':
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case ';':
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break;
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default:
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@@ -445,4 +512,4 @@ class SQLProcessor extends SQLChunkProcessor {
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return parent::process($out);
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}
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}
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?>
|
||||
?>
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Reference in New Issue
Block a user