446 lines
17 KiB
PHP
Executable File
446 lines
17 KiB
PHP
Executable File
<?php
|
|
/**
|
|
* ColumnDefinitionProcessor.php
|
|
*
|
|
* This file implements the processor for column definition part of a CREATE TABLE statement.
|
|
*
|
|
* 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__) . '/AbstractProcessor.php';
|
|
require_once dirname(__FILE__) . '/ReferenceDefinitionProcessor.php';
|
|
require_once dirname(__FILE__) . '/ExpressionListProcessor.php';
|
|
require_once dirname(__FILE__) . '/../utils/ExpressionType.php';
|
|
|
|
/**
|
|
*
|
|
* This class processes the column definition part of a CREATE TABLE statement.
|
|
*
|
|
* @author arothe
|
|
*
|
|
*/
|
|
class ColumnDefinitionProcessor extends AbstractProcessor {
|
|
|
|
protected function processExpressionList($parsed) {
|
|
$processor = new ExpressionListProcessor();
|
|
return $processor->process($parsed);
|
|
}
|
|
|
|
protected function processReferenceDefinition($parsed) {
|
|
$processor = new ReferenceDefinitionProcessor();
|
|
return $processor->process($parsed);
|
|
}
|
|
|
|
protected function removeComma($tokens) {
|
|
$res = array();
|
|
foreach ($tokens as $token) {
|
|
if (trim($token) !== ',') {
|
|
$res[] = $token;
|
|
}
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
protected function buildColDef($expr, $base_expr, $options, $refs, $key) {
|
|
$expr = array('expr_type' => ExpressionType::COLUMN_TYPE, 'base_expr' => $base_expr, 'sub_tree' => $expr);
|
|
|
|
// add options first
|
|
$expr['sub_tree'] = array_merge($expr['sub_tree'], $options['sub_tree']);
|
|
unset($options['sub_tree']);
|
|
$expr = array_merge($expr, $options);
|
|
|
|
// followed by references
|
|
if (sizeof($refs) !== 0) {
|
|
$expr['sub_tree'] = array_merge($expr['sub_tree'], $refs);
|
|
}
|
|
|
|
$expr['till'] = $key;
|
|
return $expr;
|
|
}
|
|
|
|
public function process($tokens) {
|
|
|
|
$trim = '';
|
|
$base_expr = '';
|
|
$currCategory = '';
|
|
$expr = array();
|
|
$refs = array();
|
|
$options = array('unique' => false, 'nullable' => true, 'auto_inc' => false, 'primary' => false,
|
|
'sub_tree' => array());
|
|
$skip = 0;
|
|
|
|
foreach ($tokens as $key => $token) {
|
|
|
|
$trim = trim($token);
|
|
$base_expr .= $token;
|
|
|
|
if ($skip > 0) {
|
|
$skip--;
|
|
continue;
|
|
}
|
|
|
|
if ($skip < 0) {
|
|
break;
|
|
}
|
|
|
|
if ($trim === '') {
|
|
continue;
|
|
}
|
|
|
|
$upper = strtoupper($trim);
|
|
|
|
switch ($upper) {
|
|
|
|
case ',':
|
|
// we stop on a single comma and return
|
|
// the $expr entry and the index $key
|
|
$expr = $this->buildColDef($expr, trim(substr($base_expr, 0, -strlen($token))), $options, $refs,
|
|
$key - 1);
|
|
break 2;
|
|
|
|
case 'VARCHAR':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'length' => false);
|
|
$prevCategory = 'TEXT';
|
|
$currCategory = 'SINGLE_PARAM_PARENTHESIS';
|
|
continue 2;
|
|
|
|
case 'VARBINARY':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'length' => false);
|
|
$prevCategory = $upper;
|
|
$currCategory = 'SINGLE_PARAM_PARENTHESIS';
|
|
continue 2;
|
|
|
|
case 'UNSIGNED':
|
|
$last = array_pop($expr);
|
|
$last['unsigned'] = true;
|
|
$expr[] = $last;
|
|
continue 2;
|
|
|
|
case 'ZEROFILL':
|
|
$last = array_pop($expr);
|
|
$last['zerofill'] = true;
|
|
$expr[] = $last;
|
|
continue 2;
|
|
|
|
case 'BIT':
|
|
case 'TINYBIT':
|
|
case 'SMALLINT':
|
|
case 'MEDIUMINT':
|
|
case 'INT':
|
|
case 'INTEGER':
|
|
case 'BIGINT':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'unsigned' => false,
|
|
'zerofill' => false, 'length' => false);
|
|
$currCategory = 'SINGLE_PARAM_PARENTHESIS';
|
|
$prevCategory = $upper;
|
|
continue 2;
|
|
|
|
case 'BINARY':
|
|
if ($currCategory === 'TEXT') {
|
|
$last = array_pop($expr);
|
|
$last['binary'] = true;
|
|
$last['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
$expr[] = $last;
|
|
continue 2;
|
|
}
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'length' => false);
|
|
$currCategory = 'SINGLE_PARAM_PARENTHESIS';
|
|
$prevCategory = $upper;
|
|
continue 2;
|
|
|
|
case 'CHAR':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'length' => false);
|
|
$currCategory = 'SINGLE_PARAM_PARENTHESIS';
|
|
$prevCategory = 'TEXT';
|
|
continue 2;
|
|
|
|
case 'REAL':
|
|
case 'DOUBLE':
|
|
case 'FLOAT':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'unsigned' => false,
|
|
'zerofill' => false);
|
|
$currCategory = 'TWO_PARAM_PARENTHESIS';
|
|
$prevCategory = $upper;
|
|
continue 2;
|
|
|
|
case 'DECIMAL':
|
|
case 'NUMERIC':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'unsigned' => false,
|
|
'zerofill' => false);
|
|
$currCategory = 'TWO_PARAM_PARENTHESIS';
|
|
$prevCategory = $upper;
|
|
continue 2;
|
|
|
|
case 'DATE':
|
|
case 'TIME':
|
|
case 'TIMESTAMP':
|
|
case 'DATETIME':
|
|
case 'YEAR':
|
|
case 'TINYBLOB':
|
|
case 'BLOB':
|
|
case 'MEDIUMBLOB':
|
|
case 'LONGBLOB':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim);
|
|
$prevCategory = $currCategory = $upper;
|
|
continue 2;
|
|
|
|
// the next token can be BINARY
|
|
case 'TINYTEXT':
|
|
case 'TEXT':
|
|
case 'MEDIUMTEXT':
|
|
case 'LONGTEXT':
|
|
$prevCategory = $currCategory = 'TEXT';
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim, 'binary' => false);
|
|
continue 2;
|
|
|
|
case 'ENUM':
|
|
case 'SET':
|
|
$currCategory = 'MULTIPLE_PARAM_PARENTHESIS';
|
|
$prevCategory = 'TEXT';
|
|
$expr[] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim, 'sub_tree' => false);
|
|
continue 2;
|
|
|
|
case 'GEOMETRY':
|
|
case 'POINT':
|
|
case 'LINESTRING':
|
|
case 'POLYGON':
|
|
case 'MULTIPOINT':
|
|
case 'MULTILINESTRING':
|
|
case 'MULTIPOLYGON':
|
|
case 'GEOMETRYCOLLECTION':
|
|
$expr[] = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim);
|
|
$prevCategory = $currCategory = $upper;
|
|
// TODO: is it right?
|
|
// spatial types
|
|
continue 2;
|
|
|
|
case 'CHARACTER':
|
|
if ($prevCategory === 'TEXT') {
|
|
$parsed = array('expr_type' => ExpressionType::DATA_TYPE, 'base_expr' => $trim);
|
|
$expr[] = array('expr_type' => ExpressionType::CHARSET, 'base_expr' => substr($base_expr, 0, -1),
|
|
'sub_tree' => $parsed);
|
|
$base_expr = $token;
|
|
$currCategory = 'CHARSET';
|
|
continue 2;
|
|
}
|
|
// else ?
|
|
break;
|
|
|
|
case 'SET':
|
|
if ($currCategory === 'CHARSET') {
|
|
// TODO: is it necessary to set special properties like the name or collation?
|
|
$parsed = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
$last = array_pop($expr);
|
|
$last['sub_tree'][] = $parsed;
|
|
$expr[] = $last;
|
|
continue 2;
|
|
}
|
|
// else ?
|
|
break;
|
|
|
|
case 'COLLATE':
|
|
if ($prevCategory === 'TEXT') {
|
|
$parsed = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
$expr[] = array('expr_type' => ExpressionType::COLLATE, 'base_expr' => substr($base_expr, 0, -1),
|
|
'sub_tree' => $parsed);
|
|
$base_expr = $token;
|
|
$currCategory = 'COLLATION';
|
|
continue 2;
|
|
}
|
|
// else ?
|
|
break;
|
|
|
|
case 'NOT':
|
|
case 'NULL':
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
if ($options['nullable']) {
|
|
$options['nullable'] = ($upper === 'NOT' ? false : true);
|
|
}
|
|
continue 2;
|
|
|
|
case 'DEFAULT':
|
|
case 'COMMENT':
|
|
$currCategory = $upper;
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
continue 2;
|
|
|
|
case 'AUTO_INCREMENT':
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
$options['auto_inc'] = true;
|
|
continue 2;
|
|
|
|
case 'COLUMN_FORMAT':
|
|
case 'STORAGE':
|
|
$currCategory = $upper;
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
continue 2;
|
|
|
|
case 'UNIQUE':
|
|
// it can follow a KEY word
|
|
$currCategory = $upper;
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
$options['unique'] = true;
|
|
continue 2;
|
|
|
|
case 'PRIMARY':
|
|
// it must follow a KEY word
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
continue 2;
|
|
|
|
case 'KEY':
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
if ($currCategory !== 'UNIQUE') {
|
|
$options['primary'] = true;
|
|
}
|
|
continue 2;
|
|
|
|
case 'REFERENCES':
|
|
$refs = $this->processReferenceDefinition(array_splice($tokens, $key - 1, null, true));
|
|
$skip = $refs['till'] - $key;
|
|
unset($refs['till']);
|
|
// TODO: check this, we need the last comma
|
|
continue 2;
|
|
|
|
default:
|
|
switch ($currCategory) {
|
|
|
|
case 'STORAGE':
|
|
if ($upper === 'DISK' || $upper === 'MEMORY' || $upper === 'DEFAULT') {
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
$options['storage'] = $trim;
|
|
continue 3;
|
|
}
|
|
// else ?
|
|
break;
|
|
|
|
case 'COLUMN_FORMAT':
|
|
if ($upper === 'FIXED' || $upper === 'DYNAMIC' || $upper === 'DEFAULT') {
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::RESERVED, 'base_expr' => $trim);
|
|
$options['col_format'] = $trim;
|
|
continue 3;
|
|
}
|
|
// else ?
|
|
break;
|
|
|
|
case 'COMMENT':
|
|
// this is the comment string
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::COMMENT, 'base_expr' => $trim);
|
|
$options['comment'] = $trim;
|
|
$currCategory = $prevCategory;
|
|
break;
|
|
|
|
case 'DEFAULT':
|
|
// this is the default value
|
|
$options['sub_tree'][] = array('expr_type' => ExpressionType::DEF_VALUE, 'base_expr' => $trim);
|
|
$options['default'] = $trim;
|
|
$currCategory = $prevCategory;
|
|
break;
|
|
|
|
case 'COLLATE':
|
|
// this is the collation name
|
|
$parsed = array('expr_type' => ExpressionType::CONSTANT, 'base_expr' => $trim);
|
|
$last = array_pop($expr);
|
|
$last['sub_tree'][] = $parsed;
|
|
$t = $base_expr;
|
|
$base_expr = $last['base_expr'] . $base_expr;
|
|
$last['base_expr'] = $t;
|
|
$currCategory = $prevCategory;
|
|
break;
|
|
|
|
case 'CHARSET':
|
|
// this is the character set name
|
|
$parsed = array('expr_type' => ExpressionType::CONSTANT, 'base_expr' => $trim);
|
|
$last = array_pop($expr);
|
|
$last['sub_tree'][] = $parsed;
|
|
$t = $base_expr;
|
|
$base_expr = $last['base_expr'] . $base_expr;
|
|
$last['base_expr'] = $t;
|
|
$currCategory = $prevCategory;
|
|
break;
|
|
|
|
case 'SINGLE_PARAM_PARENTHESIS':
|
|
$parsed = $this->removeParenthesisFromStart($trim);
|
|
$parsed = array('expr_type' => ExpressionType::CONSTANT, 'base_expr' => trim($parsed));
|
|
$last = array_pop($expr);
|
|
$last['length'] = $parsed['base_expr'];
|
|
|
|
$expr[] = $last;
|
|
$expr[] = array('expr_type' => ExpressionType::BRACKET_EXPRESSION, 'base_expr' => $trim,
|
|
'sub_tree' => array($parsed));
|
|
$currCategory = $prevCategory;
|
|
break;
|
|
|
|
case 'TWO_PARAM_PARENTHESIS':
|
|
// maximum of two parameters
|
|
$parsed = $this->removeParenthesisFromStart($trim);
|
|
$parsed = $this->splitSQLIntoTokens($parsed);
|
|
$parsed = $this->removeComma($parsed);
|
|
$parsed = $this->processExpressionList($parsed);
|
|
|
|
// TODO: check that
|
|
|
|
$last = array_pop($expr);
|
|
$last['length'] = $parsed[0]['base_expr'];
|
|
$last['decimals'] = isset($parsed[1]) ? $parsed[1]['base_expr'] : false;
|
|
|
|
$expr[] = $last;
|
|
$expr[] = array('expr_type' => ExpressionType::BRACKET_EXPRESSION, 'base_expr' => $trim,
|
|
'sub_tree' => $parsed);
|
|
$currCategory = $prevCategory;
|
|
break;
|
|
|
|
case 'MULTIPLE_PARAM_PARENTHESIS':
|
|
// some parameters
|
|
$parsed = $this->removeParenthesisFromStart($trim);
|
|
$parsed = $this->splitSQLIntoTokens($parsed);
|
|
$parsed = $this->removeComma($parsed);
|
|
$this->processExpressionList($parsed);
|
|
|
|
$last = array_pop($expr);
|
|
$last['sub_tree'] = array('expr_type' => ExpressionType::BRACKET_EXPRESSION, 'base_expr' => $trim,
|
|
'sub_tree' => $parsed);
|
|
$expr[] = $last;
|
|
$currCategory = $prevCategory;
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
}
|
|
$prevCategory = $currCategory;
|
|
$currCategory = '';
|
|
}
|
|
|
|
if (!isset($expr['till'])) {
|
|
// end of $tokens array
|
|
$expr = $this->buildColDef($expr, trim($base_expr), $options, $refs, -1);
|
|
}
|
|
return $expr;
|
|
}
|
|
}
|
|
?>
|