On 17-01-23 08:24 PM, Waldemar Horwat wrote:
On 01/11/2017 10:28, Michael Dyck wrote:
If so, I'm wondering how lookahead-restrictions (e.g., [lookahead <!
terminals]) fit into the LR approach. It seems like there are three
possibilities:
- modify the grammar (before the parser is constructed),
- modify the construction of the parser, and/or
- modify the operation of the parser.
It's not clear to me that any of these (or any combination of these) will
work.
Has anyone algorithmically generated an LR parser from the spec grammar?
If so, how did you you handle lookahead-restrictions?
I have an implementation of the parser with a few extensions to the LR
grammar, including support for ... lookahead restrictions, ...
Great! So how do you handle lookahead restrictions?
-Michael
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