Comments (3)
Ahh! This is actually annoying for passing in monadic/user state to the productions because if we put the constraining function inside a Prod
(as is done for Many and Alts) then we can't discover the nulls without the user state, and hence can't use user state for avoiding rerunning the grammar!
from earley.
Oof. Can you see a way to implement it? Might have to be removed.
from earley.
As it is, the constraint production can't remain at the same type, because without a Prod which is positive in the eventual Constraint
type we have nowhere to push <*>
into.
The constraint
function however wouldn't need to change as it could easily forward to Constraint myProd (Pure myPredicate)
from earley.
Related Issues (20)
- Q: How to do error recovery? HOT 1
- Wrong(?) result on some grammars with infinite results HOT 10
- Is Earley’s implementation related to Marpa? HOT 3
- Add a `eof` terminal HOT 5
- Behavior of Semigroup/Monoid instances for Prod? HOT 5
- Capture result as well as matched tokens HOT 2
- Generate ABNF/EBNF from Earley grammar HOT 1
- Suggestion: Make it so that `<$` rules return at most one result. HOT 3
- Parsing into a list delimited by a token HOT 5
- INDENT and DEDENT HOT 5
- feature: constraint validation of production parse result HOT 7
- Please add tags "test ambiguity" etc HOT 2
- Crashes if grammar is infinitely ambiguous on given input HOT 11
- Is it okey to use "many" and heavily use Applicative parsing techniques? HOT 2
- Diverges with sepEndBy from parser-combinator HOT 1
- Report doesn't include enough information HOT 2
- Is there any possible optimization for getting non-exhaustive outputs for ambiguous grammars HOT 1
- Disambiguate/Filter productions HOT 1
- Something like Ruby Slippers parsing HOT 1
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from earley.