Rewrite capitalize method

src/org/apollo/util/TextUtil.java

@@ -23,27 +23,18 @@ public final class TextUtil {
 	 * @return The string with correct capitalization.
 	 */
 	public static String capitalize(String str) {
-		char[] chars = str.toCharArray();
-		boolean sentenceStart = true;
-		for (int i = 0; i < chars.length; i++) {
-			char c = chars[i];
-			if (sentenceStart) {
-				if (c >= 'a' && c <= 'z') {
-					chars[i] -= 0x20;
-					sentenceStart = false;
-				} else if (c >= 'A' && c <= 'Z') {
-					sentenceStart = false;
-				}
-			} else {
-				if (c >= 'A' && c <= 'Z') {
-					chars[i] += 0x20;
-				}
-			}
-			if (c == '.' || c == '!' || c == '?') {
-				sentenceStart = true;
+		boolean capitalize = true;
+		StringBuilder bldr = new StringBuilder(str);
+		for (int index = 0, length = str.length(); index < length; index++) {
+			char character = bldr.charAt(index);
+			if (character == '.' || character == '!' || character == '?') {
+				capitalize = true;
+			} else if (capitalize && !Character.isWhitespace(character)) {
+				bldr.setCharAt(index, Character.toUpperCase(character));
+				capitalize = false;
 			}
 		}
-		return new String(chars, 0, chars.length);
+		return bldr.toString();
 	}
 
 	/**