From 5397bd5edee4a37833c77189f1cae6f62a0301f0 Mon Sep 17 00:00:00 2001
From: Jonathan Cobb <jonathan@kyuss.org>
Date: Fri, 20 Nov 2020 14:28:47 -0500
Subject: [PATCH] add hexadecimal pattern

---
 src/main/java/org/cobbzilla/util/string/ValidationRegexes.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/main/java/org/cobbzilla/util/string/ValidationRegexes.java b/src/main/java/org/cobbzilla/util/string/ValidationRegexes.java
index 74ddbb5..ee2c777 100644
--- a/src/main/java/org/cobbzilla/util/string/ValidationRegexes.java
+++ b/src/main/java/org/cobbzilla/util/string/ValidationRegexes.java
@@ -56,6 +56,7 @@ public class ValidationRegexes {
     public static final Pattern FILENAME_PATTERN = pattern("^[_A-Z0-9\\-\\.]+$");
     public static final Pattern INTEGER_PATTERN = pattern("^[0-9]+$");
     public static final Pattern DECIMAL_PATTERN = pattern("^[0-9]+(\\.[0-9]+)?$");
+    public static final Pattern HEXADECIMAL_PATTERN = pattern("^[0-9a-f]+$");
 
     public static final Map<String, Pattern> PHONE_PATTERNS = MapBuilder.build(new Object[][]{
             {"US", pattern("^\\d{10}$")}