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/Components/Limit.php
+++ b/phpMyAdmin/vendor/phpmyadmin/sql-parser/src/Components/Limit.php
@@ -0,0 +1,133 @@
+<?php
+
+/**
+ * `LIMIT` keyword parser.
+ */
+
+namespace PhpMyAdmin\SqlParser\Components;
+
+use PhpMyAdmin\SqlParser\Component;
+use PhpMyAdmin\SqlParser\Parser;
+use PhpMyAdmin\SqlParser\Token;
+use PhpMyAdmin\SqlParser\TokensList;
+
+/**
+ * `LIMIT` keyword parser.
+ *
+ * @category   Keywords
+ *
+ * @license    https://www.gnu.org/licenses/gpl-2.0.txt GPL-2.0+
+ */
+class Limit extends Component
+{
+    /**
+     * The number of rows skipped.
+     *
+     * @var int
+     */
+    public $offset;
+
+    /**
+     * The number of rows to be returned.
+     *
+     * @var int
+     */
+    public $rowCount;
+
+    /**
+     * Constructor.
+     *
+     * @param int $rowCount the row count
+     * @param int $offset   the offset
+     */
+    public function __construct($rowCount = 0, $offset = 0)
+    {
+        $this->rowCount = $rowCount;
+        $this->offset = $offset;
+    }
+
+    /**
+     * @param Parser     $parser  the parser that serves as context
+     * @param TokensList $list    the list of tokens that are being parsed
+     * @param array      $options parameters for parsing
+     *
+     * @return Limit
+     */
+    public static function parse(Parser $parser, TokensList $list, array $options = array())
+    {
+        $ret = new self();
+
+        $offset = false;
+
+        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) || ($token->type === Token::TYPE_COMMENT)) {
+                continue;
+            }
+
+            if (($token->type === Token::TYPE_KEYWORD) && ($token->flags & Token::FLAG_KEYWORD_RESERVED)) {
+                break;
+            }
+
+            if ($token->type === Token::TYPE_KEYWORD && $token->keyword === 'OFFSET') {
+                if ($offset) {
+                    $parser->error('An offset was expected.', $token);
+                }
+                $offset = true;
+                continue;
+            }
+
+            if (($token->type === Token::TYPE_OPERATOR) && ($token->value === ',')) {
+                $ret->offset = $ret->rowCount;
+                $ret->rowCount = 0;
+                continue;
+            }
+
+            // Skip if not a number
+            if (($token->type !== Token::TYPE_NUMBER)) {
+                break;
+            }
+
+            if ($offset) {
+                $ret->offset = $token->value;
+                $offset = false;
+            } else {
+                $ret->rowCount = $token->value;
+            }
+        }
+
+        if ($offset) {
+            $parser->error(
+                'An offset was expected.',
+                $list->tokens[$list->idx - 1]
+            );
+        }
+
+        --$list->idx;
+
+        return $ret;
+    }
+
+    /**
+     * @param Limit $component the component to be built
+     * @param array $options   parameters for building
+     *
+     * @return string
+     */
+    public static function build($component, array $options = array())
+    {
+        return $component->offset . ', ' . $component->rowCount;
+    }
+}