matchevaluator – Tarik Billa

What is the equivalent of Regex-replace-with-function-evaluation in Java 7?

April 9, 2024 by Tarik

Your answer is in the Matcher#appendReplacement documentation. Just put your function call in the while loop. [The appendReplacement method] is intended to be used in a loop together with the appendTail and find methods. The following code, for example, writes one dog two dogs in the yard to the standard-output stream: Pattern p = Pattern.compile(“cat”); … Read more

How does MatchEvaluator in Regex.Replace work?

April 16, 2023 by Tarik

A MatchEvaluator is a delegate that takes a Match object and returns a string that should be replaced instead of the match. You can also refer to groups from the match. You can rewrite your code as follows: string input = “23x * y34x2″; Regex reg = new Regex(@”\d(?=[a-z])|[a-z](?=\d)”); string result = reg.Replace(input, delegate(Match m) … Read more