Jacob Rus wrote:
John MacFarlane wrote:
There's no way of knowing whether the initial two *'s should start
strong emphasis unless you scan forward.
I really don't see why it can't recognize *** as a unique token, and
figure out how to do the right thing by just adding a few more rules.
This doesn't seem like an insoluble problem to me.
-Jacob
Well, ANTLR, in particular, allows the arbitrary lookahead that would
"scan forward", and thus fix the problem - so it's clearly possible to
fix that way, while still keeping a formal grammar. Recognizing *** as a
unique token would be fairly kludgy, and probably lead to still more
edge cases/complexities in the parser.
Realistically, the lexer should just recognize '*' as a token, and
resolve the complexities in the parser - and I think that might make the
whole point moot anyhow.
- Eric
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