generate returns String which does not match the Regex

[hofi1]

Describe the bug The generate function returns strings, which do not match the given RegEx

To Reproduce

1. With regex pattern '(?=(abc.*))(?=([a-z0-5]*))'
2. Use code/API

RgxGen rgxGen = RgxGen.parse(regex);
Random rnd = new Random(1234);

for (int counter = 0; counter < 100000; counter++) {
	String generatedString = rgxGen.generate(rnd);
	System.out.println(generatedString);
	assertTrue(matchesParser.parse(generatedString), "String: \'" + generatedString + "\' SHOULD match the regex: " + regex);
}

4. See error Generates String "abc(dfCxVLcJ P1&y~pw|Te6b<Z^&jNUyG!H8nin<bug_\\wV4]Z1*b+H3<Fkmcrbgx225ur2uekvxenraybvjpmdv3ot15fh53l4kmmq53iyens5rzkatqon"

Expected behavior Generate a string which matches the regex

Screenshots

Environment:

• OS: OSX 14.4.1 (23E224)
• JDK/JRE version Amazon Corretto 21.0.2
• RgxGen Version Maven Central 2.0

[curious-odd-man]

Hello! Thanks for reporting this.

Please note that this is a known issue - lookaround patterns do not function properly due to design limitations. This is also mentioned in Readme - section Limitations.

Best Regards, Vlad