[tor-commits] [metrics-lib/master] Remove redundant escape in regular expressions.

[karsten at torproject.org]

commit 18c5864591410eddf30a594fa7508cc7edb26ef4
Author: Karsten Loesing <karsten.loesing at gmx.net>
Date:   Mon Aug 20 20:51:19 2018 +0200

    Remove redundant escape in regular expressions.
    
    Turns out that characters inside square brackets don't need to be
    escaped. In fact, "^[0-9\\.]{7,15}$" does not only match valid IPv4
    addresses but also strings like "1\2\3\4".
---
 src/main/java/org/torproject/descriptor/impl/ParseHelper.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/torproject/descriptor/impl/ParseHelper.java b/src/main/java/org/torproject/descriptor/impl/ParseHelper.java
index f196b2f..514bea8 100644
--- a/src/main/java/org/torproject/descriptor/impl/ParseHelper.java
+++ b/src/main/java/org/torproject/descriptor/impl/ParseHelper.java
@@ -44,7 +44,7 @@ public class ParseHelper {
     return keyword;
   }
 
-  private static Pattern ipv4Pattern = Pattern.compile("^[0-9\\.]{7,15}$");
+  private static Pattern ipv4Pattern = Pattern.compile("^[0-9.]{7,15}$");
 
   protected static String parseIpv4Address(String line, String address)
       throws DescriptorParseException {