CODEWITHSUNDEEP
javawarningsantlrantlr4suppress-warnings
Rishi Rahiman
Rishi Rahiman

Reputation: 312

how to turn off the mismatch warnings in antlr4

Is there is any way to turnoff the mismatch or no viable alternative warning/errors in antlr4.

For example while parsing an input file suppose I'm getting these kind of infos:

line 377:4 no viable alternative at input ',PRIMARY KEY'
line 579:35 no viable alternative at input '1'

Is there is any way to turnoff these warnings ???

Upvotes: 0

Views: 1276

Answers (2)

Sam Harwell
Sam Harwell

Reputation: 99859

To simply turn them off, call lexer.removeErrorListeners() and parser.removeErrorListeners(). Typically when you do that, you want to follow it with a call to add your own implementation of ANTLRErrorListener that reports the errors in a manner that makes sense for your specific application.

Upvotes: 3

Terence Parr
Terence Parr

Reputation: 5962

You can provide an ErrorListener implementation to the parser and then override the appropriate methods to simply ignore the events. Note that you can also provide an ErrorStrategy to customize how it handles errors during the parse before it announces them.

Upvotes: 0

Related Questions