Reader class has been improved

src/main/java/serene/simple/Reader.java

@@ -1,7 +1,9 @@
 package serene.simple;
 
 import java.io.IOException;
+import java.io.InputStreamReader;
 import java.io.PushbackReader;
+import java.util.List;
 
 
 public class Reader {
@@ -22,4 +24,21 @@ public class Reader {
             return readSymbol(inputStream);
         }
     }
+
+    public static ListNode read(InputStream inputStream) throws IOException {
+        return read(new PushbackReader(new InputStreamReader(inputStream)));
+    }
+
+    public static ListNode read(PushbackReader inputStream) throws IOException {
+        List<Node> nodes = new ArrayList<Node>();
+
+        skipWhitespaces(inputStream);
+
+        char c = inputStream.read();
+        while ((byte) c != -1) {
+            inputStream.unread(c);
+            nodes.add(readNode(inputStream));
+            skipWhitespaces(inputStream);
+            c = (char) inputStream.read();
+    }
 }