[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
RE: Parser tools: How to make the lexer context sensitive?
Flatt writes
| If I remember correctly, the standard solution is to have a
| table of `typedef'ed names. When the parser encounters a typedef,
| it puts the type name into the table. So the test above would
| be "is (get-lexeme) in the table?".
This works.
| At Wed, 27 Mar 2002 13:21:02 -0700 (MST), Scott Owens wrote:
| > Currently there is no way for the lexer to get useful information
| > about the state of the parser.
| To be clear, I'm not arguing with Scott's claim above, but I'm saying
| that the information to send from the parser to the
| lexer is not really something about the current state of ther parser,
| but about a history of typedefs previously seen by
| the parser.
This perspective helped.
Thanks goes to Matthew and Scott.
/ Jens Axel