String booleanXQL(int level) {
return(indent(level) + "<boolean>\n" +
indent(level+1) + "<value>" + op() + "</value>\n" +
indent(level) + "</boolean>\n");
}
String booleanXQL(int level) {
return(indent(level) + "<boolean>\n" +
indent(level+1) + "<value>" + op() + "</value>\n" +
indent(level) + "</boolean>\n");
}