init web ems all

2024-09-27 17:13:36 +08:00
parent 81c97acbe9
commit 5cc56f8078
4263 changed files with 798779 additions and 0 deletions
--- a/phpMyAdmin/vendor/phpmyadmin/sql-parser/src/Statements/AlterStatement.php
+++ b/phpMyAdmin/vendor/phpmyadmin/sql-parser/src/Statements/AlterStatement.php
@@ -0,0 +1,153 @@
+<?php
+
+/**
+ * `ALTER` statement.
+ */
+
+namespace PhpMyAdmin\SqlParser\Statements;
+
+use PhpMyAdmin\SqlParser\Components\AlterOperation;
+use PhpMyAdmin\SqlParser\Components\Expression;
+use PhpMyAdmin\SqlParser\Components\OptionsArray;
+use PhpMyAdmin\SqlParser\Parser;
+use PhpMyAdmin\SqlParser\Statement;
+use PhpMyAdmin\SqlParser\Token;
+use PhpMyAdmin\SqlParser\TokensList;
+
+/**
+ * `ALTER` statement.
+ *
+ * @category   Statements
+ *
+ * @license    https://www.gnu.org/licenses/gpl-2.0.txt GPL-2.0+
+ */
+class AlterStatement extends Statement
+{
+    /**
+     * Table affected.
+     *
+     * @var Expression
+     */
+    public $table;
+
+    /**
+     * Column affected by this statement.
+     *
+     * @var AlterOperation[]
+     */
+    public $altered = array();
+
+    /**
+     * Options of this statement.
+     *
+     * @var array
+     */
+    public static $OPTIONS = array(
+        'ONLINE' => 1,
+        'OFFLINE' => 1,
+        'IGNORE' => 2,
+
+        'DATABASE' => 3,
+        'EVENT' => 3,
+        'FUNCTION' => 3,
+        'PROCEDURE' => 3,
+        'SERVER' => 3,
+        'TABLE' => 3,
+        'TABLESPACE' => 3,
+        'USER' => 3,
+        'VIEW' => 3
+    );
+
+    /**
+     * @param Parser     $parser the instance that requests parsing
+     * @param TokensList $list   the list of tokens to be parsed
+     */
+    public function parse(Parser $parser, TokensList $list)
+    {
+        ++$list->idx; // Skipping `ALTER`.
+        $this->options = OptionsArray::parse(
+            $parser,
+            $list,
+            static::$OPTIONS
+        );
+        ++$list->idx;
+
+        // Parsing affected table.
+        $this->table = Expression::parse(
+            $parser,
+            $list,
+            array(
+                'parseField' => 'table',
+                'breakOnAlias' => true
+            )
+        );
+        ++$list->idx; // Skipping field.
+
+        /**
+         * The state of the parser.
+         *
+         * Below are the states of the parser.
+         *
+         *      0 -----------------[ alter operation ]-----------------> 1
+         *
+         *      1 -------------------------[ , ]-----------------------> 0
+         *
+         * @var int
+         */
+        $state = 0;
+
+        for (; $list->idx < $list->count; ++$list->idx) {
+            /**
+             * Token parsed at this moment.
+             *
+             * @var Token
+             */
+            $token = $list->tokens[$list->idx];
+
+            // End of statement.
+            if ($token->type === Token::TYPE_DELIMITER) {
+                break;
+            }
+
+            // Skipping whitespaces and comments.
+            if (($token->type === Token::TYPE_WHITESPACE) || ($token->type === Token::TYPE_COMMENT)) {
+                continue;
+            }
+
+            if ($state === 0) {
+                $options = array();
+                if ($this->options->has('DATABASE')) {
+                    $options = AlterOperation::$DB_OPTIONS;
+                } elseif ($this->options->has('TABLE')) {
+                    $options = AlterOperation::$TABLE_OPTIONS;
+                } elseif ($this->options->has('VIEW')) {
+                    $options = AlterOperation::$VIEW_OPTIONS;
+                } elseif ($this->options->has('USER')) {
+                    $options = AlterOperation::$USER_OPTIONS;
+                }
+
+                $this->altered[] = AlterOperation::parse($parser, $list, $options);
+                $state = 1;
+            } elseif ($state === 1) {
+                if (($token->type === Token::TYPE_OPERATOR) && ($token->value === ',')) {
+                    $state = 0;
+                }
+            }
+        }
+    }
+
+    /**
+     * @return string
+     */
+    public function build()
+    {
+        $tmp = array();
+        foreach ($this->altered as $altered) {
+            $tmp[] = $altered::build($altered);
+        }
+
+        return 'ALTER ' . OptionsArray::build($this->options)
+            . ' ' . Expression::build($this->table)
+            . ' ' . implode(', ', $tmp);
+    }
+}