+ Add vendor of sqlparser.

2022-08-16 15:02:27 +08:00
parent b6dcbaa519
commit c8f3aec35b
979 changed files with 321906 additions and 0 deletions
@@ -0,0 +1,119 @@
+<?php
+/**
+ * Parses a function call.
+ */
+
+declare(strict_types=1);
+
+namespace PhpMyAdmin\SqlParser\Components;
+
+use PhpMyAdmin\SqlParser\Component;
+use PhpMyAdmin\SqlParser\Parser;
+use PhpMyAdmin\SqlParser\Token;
+use PhpMyAdmin\SqlParser\TokensList;
+
+use function is_array;
+
+/**
+ * Parses a function call.
+ *
+ * @final
+ */
+class FunctionCall extends Component
+{
+    /**
+     * The name of this function.
+     *
+     * @var string
+     */
+    public $name;
+
+    /**
+     * The list of parameters.
+     *
+     * @var ArrayObj
+     */
+    public $parameters;
+
+    /**
+     * @param string         $name       the name of the function to be called
+     * @param array|ArrayObj $parameters the parameters of this function
+     */
+    public function __construct($name = null, $parameters = null)
+    {
+        $this->name = $name;
+        if (is_array($parameters)) {
+            $this->parameters = new ArrayObj($parameters);
+        } elseif ($parameters instanceof ArrayObj) {
+            $this->parameters = $parameters;
+        }
+    }
+
+    /**
+     * @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 FunctionCall
+     */
+    public static function parse(Parser $parser, TokensList $list, array $options = [])
+    {
+        $ret = new static();
+
+        /**
+         * The state of the parser.
+         *
+         * Below are the states of the parser.
+         *
+         *      0 ----------------------[ name ]-----------------------> 1
+         *
+         *      1 --------------------[ parameters ]-------------------> (END)
+         *
+         * @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) {
+                $ret->name = $token->value;
+                $state = 1;
+            } elseif ($state === 1) {
+                if (($token->type === Token::TYPE_OPERATOR) && ($token->value === '(')) {
+                    $ret->parameters = ArrayObj::parse($parser, $list);
+                }
+
+                break;
+            }
+        }
+
+        return $ret;
+    }
+
+    /**
+     * @param FunctionCall $component the component to be built
+     * @param array        $options   parameters for building
+     *
+     * @return string
+     */
+    public static function build($component, array $options = [])
+    {
+        return $component->name . $component->parameters;
+    }
+}