Given a List containing filenames, I would like to be able to have the number of potential duplicates of a file. A duplicate is defined as a file whose name is either equal or match the naming convention basename(number).extension .
The first step would be to be able to assert whether a filename matches some pattern. I thought I could do it with a regex. Here it is :
String basename = "file1";
String extension = "txt";
String patternExpression = "^%s(\\(\\d+?\\))??\\.%s$";
Pattern patter = Pattern.compile(String.format(patternExpression, basename, extension));
assert pattern.matcher("file1.txt").find() : "file1.txt should match";
assert pattern.matcher("file1(2).txt").find() : "file1(1).txt should match";
In this code sample, the assertions will pass. The problem with this approach happens when the basename contains some characters interpreted by the Regex compiler. I would like to tell the regex compiler to match exactly the basename and to not interpret it.
1) Is that possible ? 2) Isn't there a way to do that more easily ? I feel like there must be an easy way that I'm completely missing...
Thanks for the help !
