I am trying to create an application that matches a message template with a message that a user is trying to send. I am using Java regex for matching the message. The template/message may contain special characters.
How would I get the complete list of special characters that need to be escaped in order for my regex to work and match in the maximum possible cases?
Is there a universal solution for escaping all special characters in Java regex?
You can look at the javadoc of the Pattern class: http://docs.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html
You need to escape any char listed there if you want the regular char and not the special meaning.
As a maybe simpler solution, you can put the template between \Q and \E - everything between them is considered as escaped.