Exception: Retry a command with new tokens. In some cases, the parser processes a command by replacing the command with a new one and processing the new one instead of the original. When this happens, the parser will throw this exception, filling in newTokens_ with the replacement token list.

Note that this is meant to replace the current command only - this exception effectively *edits* the current command. Any pending tokens after the current command should be retained when this exception is thrown.

class RetryCommandTokensException :   ParserException