dap4/d4core/src/main/java/dap4/core/dmr/parser/bison/Dap4ParserImpl.java
SaxEvent
    pull(XMLAttributeMap map, String name)
    {
        SaxEvent event = map.remove(name.toLowerCase());
        return event;
    }
SaxEvent
    pull(XMLAttributeMap map, String name)
    {
        SaxEvent event = map.remove(name.toLowerCase());
        return event;
    }
Attribute map utilities