1999-08-28 08:19:56 +00:00

132 lines
2.8 KiB
C++

/*
* (C) Copyright The MITRE Corporation 1999 All rights reserved.
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.0 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* The program provided "as is" without any warranty express or
* implied, including the warranty of non-infringement and the implied
* warranties of merchantibility and fitness for a particular purpose.
* The Copyright owner will not be liable for any damages suffered by
* you as a result of using the Program. In no event will the Copyright
* owner be liable for any special, indirect or consequential damages or
* lost profits even if the Copyright owner has been advised of the
* possibility of their occurrence.
*
* Please see release.txt distributed with this file for more information.
*
*/
/**
* A class for keeping an ordered list of Strings
* @author <a href="mailto:kvisco@mitre.org">Keith Visco</a>
**/
#include "String.h"
#include "baseutils.h"
#ifndef MITREXSL_STRINGLIST_H
#define MITREXSL_STRINGLIST_H
class StringList {
friend class StringListIterator;
public:
/**
* Creates an empty StringList
**/
StringList();
/**
* StringList destructor
**/
~StringList();
MBool contains(String& search);
/**
* Returns the number of Strings in this List
**/
Int32 getLength();
/**
* Returns a StringListIterator for this StringList
**/
StringListIterator& iterator();
/**
* Adds the given String to the list
**/
void add(String* strptr);
/**
* Removes the given String pointer from the list
**/
String* remove(String* strptr);
/**
* Removes all Strings equal to the given String from the list
* All removed strings will be destroyed
**/
void remove(String& search);
protected:
struct StringListItem {
StringListItem* nextItem;
StringListItem* prevItem;
String* strptr;
};
private:
StringListItem* firstItem;
StringListItem* lastItem;
Int32 itemCount;
void insertAfter(String* strptr, StringListItem* sItem);
void insertBefore(String* strptr, StringListItem* sItem);
/**
* Removes the given StringListItem pointer from the list
**/
StringListItem* remove(StringListItem* sItem);
};
class StringListIterator {
public:
StringListIterator(StringList* list);
~StringListIterator();
void add(String* strptr);
MBool hasNext();
MBool hasPrevious();
String* next();
String* previous();
String* remove();
void reset();
private:
StringList::StringListItem* currentItem;
StringList* stringList;
MBool allowRemove;
};
#endif