Remove unused methods

src/SqlParser.php

@@ -48,64 +48,13 @@ public function getNextPlaceholder(int|null &$position = null): string|null
         return null;
     }
 
-    /**
-     * Parses and returns identifier. Equals to `[_a-zA-Z][$\w]+` in regular expressions.
-     *
-     * @return string Parsed identifier.
-     */
-    protected function parseIdentifier(): string
-    {
-        return match ($this->sql[$this->position]) {
-            '_',
-            'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
-            'v', 'w', 'x', 'y', 'z',
-            'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
-            'V', 'W', 'X', 'Y', 'Z' => $this->sql[$this->position++] . $this->parseWordWithDollar(),
-            default => '',
-        };
-    }
-
-    /**
-     * Parses and returns identifier without dollar sign. Equals to `[_a-zA-Z]\w+` in regular expressions.
-     *
-     * @return string Parsed identifier.
-     */
-    private function parseIdentifierWithoutDollar(): string
-    {
-        return parent::parseIdentifier();
-    }
-
-    /**
-     * Parses and returns word symbols include dollar sign. Equals to `[$\w]+` in regular expressions.
-     *
-     * @return string Parsed word symbols.
-     */
-    private function parseWordWithDollar(): string
-    {
-        $word = '';
-        $continue = true;
-
-        while ($continue && $this->position < $this->length) {
-            match ($this->sql[$this->position]) {
-                '$', '_', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
-                'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u',
-                'v', 'w', 'x', 'y', 'z',
-                'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U',
-                'V', 'W', 'X', 'Y', 'Z' => $word .= $this->sql[$this->position++],
-                default => $continue = false,
-            };
-        }
-
-        return $word;
-    }
-
     /**
      * Skips dollar-quoted string.
      */
     private function skipQuotedWithDollar(): void
     {
         $pos = $this->position;
-        $identifier = $this->parseIdentifierWithoutDollar();
+        $identifier = $this->parseIdentifier();
 
         if ($this->sql[$this->position] !== '$') {
             $this->position = $pos;