Closed andreasabel closed 2 years ago
$ cat test.cf Empty2. E ::= Empty; token Empty [""];
This produces:
File "LexTest.mll", line 51, character 0: syntax error.
test.l:52: unrecognized rule
test/testLexer.g4:12:8: string literals and sets cannot be empty: []
So there should be a check for the empty regular expression, like for the nullable one.
This produces:
File "LexTest.mll", line 51, character 0: syntax error.test.l:52: unrecognized ruletest/testLexer.g4:12:8: string literals and sets cannot be empty: []So there should be a check for the empty regular expression, like for the nullable one.