Refactored control flow to reduce nesting.

java/io/nayuki/qrcodegen/QrSegmentAdvanced.java

@@ -182,7 +182,8 @@ public final class QrSegmentAdvanced {
 		QrSegment.Mode curMode = charModes[0];
 		int start = 0;
 		for (int i = 1; ; i++) {
-			if (i >= data.length || charModes[i] != curMode) {
+			if (i < data.length && charModes[i] == curMode)
+				continue;
 			if (curMode == BYTE)
 				result.add(QrSegment.makeBytes(Arrays.copyOfRange(data, start, i)));
 			else {
@@ -200,7 +201,6 @@ public final class QrSegmentAdvanced {
 			start = i;
 		}
 	}
-	}
 	
 	
 	private static boolean isAlphanumeric(char c) {