From a0d8cb2d5dbac3653c1203502e617329cfaf65cc Mon Sep 17 00:00:00 2001
From: AppleDash <derp@derpy.fr>
Date: Thu, 15 Dec 2016 17:55:42 -0500
Subject: [PATCH] Add indexedFormat() to MessageUtils.

---
 .../saneeconomy/utils/MessageUtils.java       | 22 +++++++++++++++++++
 .../saneeconomy/test/MessageUtilsTest.java    | 18 +++++++++++++++
 2 files changed, 40 insertions(+)
 create mode 100644 SaneEconomyCore/src/test/java/org/appledash/saneeconomy/test/MessageUtilsTest.java

diff --git a/SaneEconomyCore/src/main/java/org/appledash/saneeconomy/utils/MessageUtils.java b/SaneEconomyCore/src/main/java/org/appledash/saneeconomy/utils/MessageUtils.java
index e48d4ba..444244f 100644
--- a/SaneEconomyCore/src/main/java/org/appledash/saneeconomy/utils/MessageUtils.java
+++ b/SaneEconomyCore/src/main/java/org/appledash/saneeconomy/utils/MessageUtils.java
@@ -4,6 +4,9 @@ import org.appledash.saneeconomy.SaneEconomy;
 import org.bukkit.ChatColor;
 import org.bukkit.command.CommandSender;
 
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 import static org.appledash.saneeconomy.utils.I18n._;
 
 /**
@@ -23,4 +26,23 @@ public class MessageUtils {
         String prefix = ChatColor.translateAlternateColorCodes('&', SaneEconomy.getInstance().getConfig().getString("chat.prefix", ""));
         target.sendMessage(prefix + String.format(fmt, (Object[])args));
     }
+
+    public static String indexedFormat(String fmt, String... arguments) {
+        Matcher m = Pattern.compile("\\{([0-9]+)\\}").matcher(fmt);
+        StringBuffer formatted = new StringBuffer();
+
+        while (m.find()) {
+            int index = Integer.valueOf(m.group(1)) - 1;
+
+            if (index > arguments.length - 1 || index < 0) {
+                throw new IllegalArgumentException("Index must be within the range of the given arguments.");
+            }
+
+            m.appendReplacement(formatted, arguments[index]);
+        }
+
+        m.appendTail(formatted);
+
+        return formatted.toString();
+    }
 }
diff --git a/SaneEconomyCore/src/test/java/org/appledash/saneeconomy/test/MessageUtilsTest.java b/SaneEconomyCore/src/test/java/org/appledash/saneeconomy/test/MessageUtilsTest.java
new file mode 100644
index 0000000..9fa8023
--- /dev/null
+++ b/SaneEconomyCore/src/test/java/org/appledash/saneeconomy/test/MessageUtilsTest.java
@@ -0,0 +1,18 @@
+package org.appledash.saneeconomy.test;
+
+import org.appledash.saneeconomy.utils.MessageUtils;
+import org.junit.Assert;
+import org.junit.Test;
+
+/**
+ * Created by appledash on 12/15/16.
+ * Blackjack is best pony.
+ */
+public class MessageUtilsTest {
+    @Test
+    public void testIndexedFormat() {
+        Assert.assertEquals("Hello, world!", MessageUtils.indexedFormat("{1}, {2}!", "Hello", "world"));
+        Assert.assertEquals("Hello, world!", MessageUtils.indexedFormat("Hello, {1}!", "world", "discarded"));
+        Assert.assertEquals("Hello, world!", MessageUtils.indexedFormat("Hello, {2}!", "discarded", "world"));
+    }
+}