FREJ Regex cannot match non alphanumeric characters

Question

I've been trying to match some strings using java FREJ Regex that contains non alphanumeric characters, but the match each time returns false. Can anyone please suggest what is wrong with the following code (scala)?

import net.java.frej.Regex
val pattern = new Regex("0001-0001")
val result = pattern.`match`("0001-0001")

Why is Java tagged? You asked for Java, then posted code in Scala? — Maroun, Apr 16 '15 at 14:12
This is just a bug in the code. It should match, but doesn't. Unfortunately, it looks like this library hasn't been updated in 4 years. — james.garriss, Jul 07 '15 at 12:32
I take that back. He's moved to GitHub and posted a year ago: https://github.com/RodionGork/FREJ. — james.garriss, Jul 07 '15 at 16:51

score 0 · Accepted Answer · answered Apr 16 '15 at 16:21

For a fuzzy library, it is not very fault tolerant. When you pass "0001-0001" into match, it tokenizes the string into "0001", "-", "0001" and runs the fuzzy search against those tokens.

The following solution matches:

 val pat = new Regex("[0001,-,0001]")
 val res = pat.`match`("0001-0001")

Or no hyphen in the match string oddly also matches.

 val pat = new Regex("0001-0001")
 val res = pat.`match`("00010001")

FREJ Regex cannot match non alphanumeric characters

1 Answers1