From f526425c1a3c2a835e43d9f41ddfdcafc4cef46a Mon Sep 17 00:00:00 2001
From: nathan <nathan@dorkbox.com>
Date: Tue, 7 Jul 2020 22:41:43 +0200
Subject: [PATCH] Added Sys.hexCharToInt

---
 src/dorkbox/util/Sys.java | 52 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/src/dorkbox/util/Sys.java b/src/dorkbox/util/Sys.java
index 10668d4..dc9618a 100644
--- a/src/dorkbox/util/Sys.java
+++ b/src/dorkbox/util/Sys.java
@@ -390,6 +390,7 @@ class Sys {
      * Converts an ASCII character representing a hexadecimal
      * value into its integer equivalent.
      */
+    @SuppressWarnings("DuplicatedCode")
     public static
     int hexByteToInt(byte b) {
         switch (b) {
@@ -436,6 +437,57 @@ class Sys {
         }
     }
 
+    /**
+     * Converts an ASCII character representing a hexadecimal
+     * value into its integer equivalent.
+     */
+    @SuppressWarnings("DuplicatedCode")
+    public static
+    int hexCharToInt(char b) {
+        switch (b) {
+            case '0':
+                return 0;
+            case '1':
+                return 1;
+            case '2':
+                return 2;
+            case '3':
+                return 3;
+            case '4':
+                return 4;
+            case '5':
+                return 5;
+            case '6':
+                return 6;
+            case '7':
+                return 7;
+            case '8':
+                return 8;
+            case '9':
+                return 9;
+            case 'A':
+            case 'a':
+                return 10;
+            case 'B':
+            case 'b':
+                return 11;
+            case 'C':
+            case 'c':
+                return 12;
+            case 'D':
+            case 'd':
+                return 13;
+            case 'E':
+            case 'e':
+                return 14;
+            case 'F':
+            case 'f':
+                return 15;
+            default:
+                throw new IllegalArgumentException("Error decoding byte");
+        }
+    }
+
     /**
      * A 4-digit hex result.
      */