Log lg = (Log) a;
b.append(indent).append("<log expr=\"").
append(SCXMLHelper.escapeXML(lg.getExpr())).
append("\"/>\n");
} else if (a instanceof Exit) {
Exit e = (Exit) a;
b.append(indent).append("<cs:exit");
String expr = SCXMLHelper.escapeXML(e.getExpr());
String nl = e.getNamelist();
if (expr != null) {
b.append(" expr=\"" + expr + "\"");
}
if (nl != null) {
b.append(" namelist=\"" + nl + "\"");