Facilitando as expressões regulares

JavaVerbalExpressions é uma biblioteca Java que ajuda a construir expressões regulares difíceis.

VerbalExpression testRegex = new VerbalExpression ()
                                 .startOfLine()
                                 .then("http")
                                 .maybe("s")
                                 .then("://")
                                 .maybe("www.")
                                 .anythingBut(" ")
                                 .endOfLine();

// Create an example URL
String url = "https://www.google.com";

// Use VerbalExpression's testExact() method to test if the entire string matches
// the regex
testRegex.testExact(url); //True

testRegex.toString(); // Ouputs the regex used: 
                      // ^(http)(s)?(://)(www.)?([^ ]*)$

VerbalExpression testRegex = new VerbalExpression ()
                                 .startOfLine()
                                 .then("abc")
                                 .or("def");

String testString = "defzzz";

//Use VerbalExpression's test() method to test if parts if the string match the regex
testRegex.test(testString); //true
testRegex.testExact(testString); //false

Sim, as expressões regulares podem ser tão fáceis.

https://github.com/VerbalExpressions/JavaVerbalExpressions