From c8f2bef1d93d42aba6eded5d2834f70d6e493ae1 Mon Sep 17 00:00:00 2001
From: nathan <nathan@dorkbox.com>
Date: Tue, 18 Jul 2017 16:34:06 +0200
Subject: [PATCH] Added isNumber for characters

---
 src/dorkbox/util/MathUtil.java | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/dorkbox/util/MathUtil.java b/src/dorkbox/util/MathUtil.java
index 1401da4..6b8d868 100644
--- a/src/dorkbox/util/MathUtil.java
+++ b/src/dorkbox/util/MathUtil.java
@@ -39,6 +39,17 @@ class MathUtil {
         return isNumber(string, 19);
     }
 
+    /**
+     * Checks to see if the character is a number
+     *
+     * @return true if it's a number, false otherwise
+     */
+    public static
+    boolean isNumber(final char character) {
+        // way faster than Character.isDigit()
+        return character >= '0' && character <= '9';
+    }
+
     /**
      * Checks to see if the string is a number
      *
@@ -72,6 +83,7 @@ class MathUtil {
 
         for (; i < length; i++) {
             char c = string.charAt(i);
+            // way faster than Character.isDigit()
             if (c < '0' || c > '9') {
                 return false;
             }