fixed bug with syntactically wrong guards

src/main/java/avatartranslator/AvatarTerm.java

@@ -63,6 +63,10 @@ public abstract class AvatarTerm extends AvatarElement {
     }
 
     public static AvatarTerm createFromString (AvatarStateMachineOwner block, String toParse) {
+        return AvatarTerm.createFromString(block, toParse, false);
+    }
+
+    public static AvatarTerm createFromString (AvatarStateMachineOwner block, String toParse, boolean allowRaw) {
         if (toParse == null || toParse.isEmpty ())
             return null;
 
@@ -105,7 +109,10 @@ public abstract class AvatarTerm extends AvatarElement {
         //TraceManager.addDev ("AvatarConstant '" + toParse + "' couldn't be parsed");
 
         //TraceManager.addDev ("AvatarTerm '" + toParse + "' couldn't be parsed");
-        return new AvatarTermRaw (toParse, block);
+        if (allowRaw)
+            return new AvatarTermRaw (toParse, block);
+        else
+            return null;
     }
 
     public static AvatarAction createActionFromString (AvatarStateMachineOwner block, String toParse) {

src/main/java/avatartranslator/AvatarTuple.java

@@ -62,8 +62,8 @@ public class AvatarTuple extends AvatarLeftHand {
     public static AvatarTuple createFromString (AvatarStateMachineOwner block, String toParse) {
         AvatarTuple result = null;
 
-        int indexLParen = toParse.indexOf ("(");
-        if (indexLParen != -1) {
+        if (toParse.trim().startsWith("(")) {
+            int indexLParen = toParse.indexOf ("(");
             int indexRParen = toParse.indexOf (")", indexLParen);
             if (indexRParen == -1)
                 indexRParen = toParse.length ();

ttool/src/test/java/avatartranslator/AvatarGuardTests.java

@@ -43,6 +43,8 @@
  * @see
  */
 
+package avatartranslator;
+
 import org.junit.Test;
 import org.junit.*;