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Re: New Lexer
> So my question, what must I do to write my own lexer?
The easiest way to write your own lexer is to let SableCC write most of
it for you;-) Let me explain.
You write your grammar as usual, but you leave the right-hand side of
your token definitions empty.
blah = ;
other_blah = ;
... //(if any)
What SableCC will do for you is to create a Lexer class (and Parser,
...), as well as all the TOKEN CLASSES. This can save you much time;-)
Then, all you need to do is to create a new SomeLexer class that
overrides the next() and peek() methods. Be sure to instatiate the
appropriate Token class (e.g. TBlah(), TOtherBlah()) for each scanned
In reality, I should have made the "getToken" method "protected". This
is the methods that you really need to override. I will do this today.
So, you won't need to override next and peek. Only getToken;-)
Does it all make sense to you?
- New Lexer
- From: Philippe <email@example.com>