Just beginning with ANTLR4. Found that lexer rules can be recursive https://github.com/antlr/antlr4/blob/master/doc/lexer-rules.md#recursive-lexer-rules. What is the use case to use recursive lexer rules instead of recursive parser rules? Dont you loose all the information when using lexer recursive rules?
1 Answers
As mentioned in the comments by sepp2k: besides nested string literals, nested comments are 1 of the use cases:
COMMENT
: '/*' ( COMMENT | . )*? '*/'
;
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