Add acronym support (e.g. NPC) to LanguageUtil#getIndefiniteArticle.

src/org/apollo/util/LanguageUtil.java

@@ -1,26 +1,49 @@
 package org.apollo.util;
 
 /**
- * A utility class which contains language-related methods.
+ * Contains language-related utility methods.
  * 
  * @author Graham
+ * @author Major
  */
 public final class LanguageUtil {
 
 	/**
-	 * Gets the indefinite article of a 'thing'.
+	 * Returns whether or not the each letter in the specified String is upper case (i.e. digits etc are ignored).
 	 * 
-	 * @param thing The thing.
+	 * @param string The string.
+	 * @return {@code true} if no letters in the specified String are lower case, otherwise {@code false}.
+	 */
+	public static boolean allUpperCase(String string) {
+		for (char character : string.toCharArray()) {
+			if (Character.isLowerCase(character)) {
+				return false;
+			}
+		}
+
+		return true;
+	}
+
+	/**
+	 * Gets the indefinite article of the specified String.
+	 * 
+	 * @param string The String.
 	 * @return The indefinite article.
 	 */
-	public static String getIndefiniteArticle(String thing) {
-		char first = thing.toLowerCase().charAt(0);
+	public static String getIndefiniteArticle(String string) {
+		char first = Character.toLowerCase(string.charAt(0));
+		if (allUpperCase(string)) {
+			if (first == 'f' || first == 'l' | first == 'm' || first == 'n' || first == 's') {
+				return "an";
+			}
+		}
+
 		boolean vowel = first == 'a' || first == 'e' || first == 'i' || first == 'o' || first == 'u';
 		return vowel ? "an" : "a";
 	}
 
 	/**
-	 * Default private constructor to prevent instantiation.
+	 * Sole private constructor to prevent instantiation.
 	 */
 	private LanguageUtil() {