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nsNameSpaceMap.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
00002  *
00003  * ***** BEGIN LICENSE BLOCK *****
00004  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
00005  *
00006  * The contents of this file are subject to the Mozilla Public License Version
00007  * 1.1 (the "License"); you may not use this file except in compliance with
00008  * the License. You may obtain a copy of the License at
00009  * http://www.mozilla.org/MPL/
00010  *
00011  * Software distributed under the License is distributed on an "AS IS" basis,
00012  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00013  * for the specific language governing rights and limitations under the
00014  * License.
00015  *
00016  * The Original Code is mozilla.org Code.
00017  *
00018  * The Initial Developer of the Original Code is
00019  * Netscape Communications Corporation.
00020  * Portions created by the Initial Developer are Copyright (C) 1999
00021  * the Initial Developer. All Rights Reserved.
00022  *
00023  * Contributor(s):
00024  *   Chris Waterson <waterson@netscape.com>
00025  *
00026  * Alternatively, the contents of this file may be used under the terms of
00027  * either of the GNU General Public License Version 2 or later (the "GPL"),
00028  * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00029  * in which case the provisions of the GPL or the LGPL are applicable instead
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00038  * ***** END LICENSE BLOCK ***** */
00039 
00040 #ifndef nsNameSpaceMap_h__
00041 #define nsNameSpaceMap_h__
00042 
00043 #include "nsCOMPtr.h"
00044 #include "nsString.h"
00045 #include "nsIAtom.h"
00046 
00047 class nsNameSpaceMap
00048 {
00049 public:
00050     class Entry {
00051     public:
00052         Entry(const nsCSubstring& aURI, nsIAtom* aPrefix)
00053             : mURI(aURI), mPrefix(aPrefix), mNext(nsnull) {
00054             MOZ_COUNT_CTOR(nsNameSpaceMap::Entry); }
00055 
00056         ~Entry() { MOZ_COUNT_DTOR(nsNameSpaceMap::Entry); }
00057         
00058         nsCString mURI;
00059         nsCOMPtr<nsIAtom> mPrefix; 
00060 
00061         Entry* mNext;
00062     };
00063 
00064     nsNameSpaceMap();
00065     ~nsNameSpaceMap();
00066 
00067     nsresult
00068     Put(const nsAString& aURI, nsIAtom* aPrefix);
00069 
00070     nsresult
00071     Put(const nsCSubstring& aURI, nsIAtom* aPrefix);
00072 
00073     class const_iterator {
00074     protected:
00075         friend class nsNameSpaceMap;
00076 
00077         const_iterator(const Entry* aCurrent)
00078             : mCurrent(aCurrent) {}
00079 
00080         const Entry* mCurrent;
00081 
00082     public:
00083         const_iterator()
00084             : mCurrent(nsnull) {}
00085 
00086         const_iterator(const const_iterator& iter)
00087             : mCurrent(iter.mCurrent) {}
00088 
00089         const_iterator&
00090         operator=(const const_iterator& iter) {
00091             mCurrent = iter.mCurrent;
00092             return *this; }
00093 
00094         const_iterator&
00095         operator++() {
00096             mCurrent = mCurrent->mNext;
00097             return *this; }
00098 
00099         const_iterator
00100         operator++(int) {
00101             const_iterator tmp(*this);
00102             mCurrent = mCurrent->mNext;
00103             return tmp; }
00104 
00105         const Entry* operator->() const { return mCurrent; }
00106 
00107         const Entry& operator*() const { return *mCurrent; }
00108 
00109         PRBool
00110         operator==(const const_iterator& iter) const {
00111             return mCurrent == iter.mCurrent; }
00112 
00113         PRBool
00114         operator!=(const const_iterator& iter) const {
00115             return ! iter.operator==(*this); }
00116     };
00117 
00118     const_iterator first() const {
00119         return const_iterator(mEntries); }
00120 
00121     const_iterator last() const {
00122         return const_iterator(nsnull); }
00123 
00124     const_iterator GetNameSpaceOf(const nsCSubstring& aURI) const;
00125 
00126 protected:
00127     Entry* mEntries;
00128 };
00129 
00130 
00131 #endif // nsNameSpaceMap_h__