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Questions - error-recovery

ANTLR4 error recovery issues for class bodies

I've found a strange issue regarding error recovery in ANTLR4. If I take the grammar example from the ANTLR book grammar simple; prog: classDef+ ; // match one or more class definitions classDef ...
test-img

sazz

java

error-handling

antlr

antlr4

error-recovery

Votes: 0

Answers: 1

Latest Answer

It is worth noting that the parser never enters the sub rule for the given input. The classDef rule fails before trying to match a member. Before trying to parse the sub-rule, the sync method on Defa...
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Chris

Manually tweak env/stack/semantic value to achieve an error recovery

I'm trying to implement error recovery in this version of the project (make followed by ./parse e1.input to test). Given (1 in e1.input, I would like the parser to act as if it parsed ) and build an A...
test-img

SoftTimur

parsing

ocaml

menhir

error-recovery

Votes: 0

Answers: 1

Latest Answer

Before feeding ), we should first reduce, the following code works: let env_new = force_reduction (find_production 1) env in let env_new_new = feed (T T_RPAREN) startp () endp env_new in (lex, input_n...
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SoftTimur

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