*token = DEQUEUE(parser, parser->tokens);
parser->token_available = 0;
parser->tokens_parsed ++;
*token = DEQUEUE(parser, parser->tokens);
parser->token_available = 0;
parser->tokens_parsed ++;
* Push the current indentation level to the stack and set the new level
* the current column is greater than the indentation level. In this case,
* append or insert the specified token into the token queue.
* Push the current indentation level to the stack and set the new level
* the current column is greater than the indentation level. In this case,
* append or insert the specified token into the token queue.