import java.util.*;
import java.io.*;
import edu.neu.ccs.demeter.*;
 class AttrValue_List implements java.util.Enumeration, Cloneable {
  protected Nonempty_AttrValue_List first;
  public Nonempty_AttrValue_List get_first() { return first;   }
  public void set_first(Nonempty_AttrValue_List new_first) { first = new_first;   }
  public AttrValue_List() { super();   }
  public AttrValue_List(Nonempty_AttrValue_List first) {
    super();
    set_first(first);
    }
  public static AttrValue_List parse(java.io.Reader in) throws ParseException { return new Parser(in)._AttrValue_List();   }
  public static AttrValue_List parse(java.io.InputStream in) throws ParseException { return new Parser(in)._AttrValue_List();   }
  public static AttrValue_List parse(String s) {
    try { return parse(new java.io.StringReader(s)); }
    catch (ParseException e) {
      throw new RuntimeException(e.toString());
    }
    }
  public String getAttributePrefix(String nsPrefix, String name) {
	return getAttributeRecord(nsPrefix, name)[0];
      }
  public String getAttributeName(String nsPrefix, String name) {
	return getAttributeRecord(nsPrefix, name)[1];
      }
  public String getAttributeValue(String nsPrefix, String name) {
	return getAttributeRecord(nsPrefix, name)[2];
      }
  public String[] getAllAttributeNames(String nsPrefix, String name) {
	String allAttrs[][] = getAllAttributeRecords(nsPrefix, name);
	String allValues[] = new String[allAttrs.length];
	for (int i = 0; i < allAttrs.length; i++)
	    allValues[i] = allAttrs[i][1];
	return allValues;
      }
  private String[] getAttributeRecord(String nsPrefix, String name) {
	String attrRecord[] = new String[] {"", "", ""};

	for (Enumeration attrValues = elements();
	     attrValues.hasMoreElements(); )
	{
	    AttrValue attr = (AttrValue) attrValues.nextElement();

	    String attrPrefix = (attr.prefix==null) ?
				  "" : (attr.prefix.namespace.toString());
	    String attrName = attr.attrName.toString();
	    String attrValue = attr.attrValue;

	    if (((nsPrefix == null) || (attrPrefix.equals(nsPrefix))) &&
		((name == null) || (attrName.equals(name))))
	    {
		attrRecord[0] = attrPrefix;
		attrRecord[1] = attrName;
		attrRecord[2] = attrValue;
		break;
	    }
	}
	return attrRecord;
      }
  private String[][] getAllAttributeRecords(String nsPrefix, String name) {
	Vector allMatchingAttributes = new Vector();
	String attrRecord[] = new String[] {"", "", ""};

	for (Enumeration attrValues = elements();
	     attrValues.hasMoreElements(); )
	{
	    AttrValue attr = (AttrValue) attrValues.nextElement();

	    String attrPrefix = (attr.prefix==null) ?
				  "" : (attr.prefix.namespace.toString());
	    String attrName = attr.attrName.toString();
	    String attrValue = attr.attrValue;

	    if (((nsPrefix == null) || (attrPrefix.equals(nsPrefix))) &&
		((name == null) || (attrName.equals(name))))
	    {
		attrRecord[0] = attrPrefix;
		attrRecord[1] = attrName;
		attrRecord[2] = attrValue;
		allMatchingAttributes.addElement(attrRecord);
	    }
	}
	String returnValue[][] = new String[allMatchingAttributes.size()][];
	allMatchingAttributes.copyInto(returnValue);
	return returnValue;
      }
    void universal_trv0_bef(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).before(this);
  }

    void universal_trv0_aft(UniversalVisitor _v_) {
    ((UniversalVisitor) _v_).after(this);
  }

    void universal_trv0(UniversalVisitor _v_) {
    universal_trv0_bef(_v_);
    if (first != null) {
      ((UniversalVisitor) _v_).before_first(this, first);
      first.universal_trv0(_v_);
      ((UniversalVisitor) _v_).after_first(this, first);
    }
    universal_trv0_aft(_v_);
  }

    void processDefinition_Schema_trv_bef(SchemaVisitor __v0) {
    ((UniversalVisitor) __v0).before(this);
  }

    void processDefinition_Schema_trv_aft(SchemaVisitor __v0) {
    ((UniversalVisitor) __v0).after(this);
  }

    void processDefinition_Schema_trv(SchemaVisitor __v0) {
    processDefinition_Schema_trv_bef(__v0);
    if (first != null) {
      ((UniversalVisitor) __v0).before_first(this, first);
      first.processDefinition_Schema_trv(__v0);
      ((UniversalVisitor) __v0).after_first(this, first);
    }
    processDefinition_Schema_trv_aft(__v0);
  }

    void __trav_print_Schema_trv_bef(DisplayVisitor __v0) {
    ((DisplayVisitor) __v0).before(this);
  }

    void __trav_print_Schema_trv_aft(DisplayVisitor __v0) {
    ((DisplayVisitor) __v0).after(this);
  }

    void __trav_print_Schema_trv(DisplayVisitor __v0) {
    __trav_print_Schema_trv_bef(__v0);
    if (first != null) {
      ((DisplayVisitor) __v0).before_first(this, first);
      first.__trav_print_Schema_trv(__v0);
      ((UniversalVisitor) __v0).after_first(this, first);
    }
    __trav_print_Schema_trv_aft(__v0);
  }

  
  private Nonempty_AttrValue_List tail;
  public void addElement(AttrValue e) { 
    checktail(); 
    if (tail == null) {
      first = new Nonempty_AttrValue_List(e,null); tail = first;
    } else {
	tail.set_next(new Nonempty_AttrValue_List(e,null)); tail = tail.get_next();
    }
  }

  public void push(AttrValue e) { first = new Nonempty_AttrValue_List(e,first); }

  public java.util.Enumeration elements() { return new AttrValue_List(first); } 

  public int size() {
    int i= 0;
    for (java.util.Enumeration e=elements(); e.hasMoreElements(); i++)
	e.nextElement();
    return i;
  }
  public boolean isEmpty() { return (first == null); }

  public boolean hasMoreElements() { return (first != null); }

  public Object nextElement() {
    AttrValue car = first.get_it();
    first = first.get_next();
    return (Object) car;
  }

  private void checktail() {
    if (tail == null && first != null) {
	tail = first;
	while (tail.get_next() != null) tail = tail.get_next();
    }
  }
  public boolean contains(AttrValue e) {
    java.util.Enumeration en = this.elements();
    while (en.hasMoreElements())
	if (e.equals((AttrValue) en.nextElement())) return true;
    return false;
  }

}