11.6.1.0080 ( paren FILE

Extend the semantics of 6.1.0080 ( to include:

When parsing from a text file, if the end of the parse area is reached before a right parenthesis is found, refill the input buffer from the next line of the file, set >IN to zero, and resume parsing, repeating this process until either a right parenthesis is found or the end of the file is reached.