diff --git a/src/main/java/org/gcube/dataanalysis/ecoengine/utils/Transformations.java b/src/main/java/org/gcube/dataanalysis/ecoengine/utils/Transformations.java
index bb43339..53b486b 100644
--- a/src/main/java/org/gcube/dataanalysis/ecoengine/utils/Transformations.java
+++ b/src/main/java/org/gcube/dataanalysis/ecoengine/utils/Transformations.java
@@ -187,6 +187,12 @@ public class Transformations {
 	
 	
 	public static void main(String[] args) throws Exception{
+		
+		List<String> ll = Transformations.parseCVSString("h,t,,,,k,", ",");
+		for (String l:ll){
+			System.out.println(l);
+		}
+		
 		String s = "un'estate al mare";
 		System.out.println("index: "+indexString(s));
 		System.out.println("sha1: "+Sha1.SHA1(s));
@@ -205,7 +211,7 @@ public class Transformations {
 		int idxdelim = -1;
 		boolean quot = false;
 		phrase = phrase.trim();
-		while ( (idxdelim = phrase.indexOf(delimiter))>0) {
+		while ( (idxdelim = phrase.indexOf(delimiter))>=0) {
 			 quot=phrase.startsWith("\"");
 			if (quot){
 				phrase = phrase.substring(1);