src/main/java/org/helm/notation2/parser/HELMNotationParserUI.java
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
    String helmInput = input.getText();
    if (!(helmInput.contains("V2.0"))) {
      /* Translate into HELM2-format */
    	      helmInput = converter.doConvert(helmInput);
    	

    }

    /* read input */
    try {
      parser.parse(helmInput);
      writeOutputmessage();
    } catch (ExceptionState e) {
      output.setText("Invalid HELM-String (" + e.getMessage() + ")");
    }

  }
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
    String helmInput = input.getText();
    if (!(helmInput.contains("V2.0"))) {
      /* Translate into HELM2-format */
    	      helmInput = converter.doConvert(helmInput);
    	

    }

    /* read input */
    try {
      parser.parse(helmInput);
      writeOutputmessage();
    } catch (ExceptionState e) {
      output.setText("Invalid HELM-String (" + e.getMessage() + ")");
    }

  }
</editor-fold>