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106 lines
3.6 KiB
C++
106 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef __nsstreamconverterservice__h___
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#define __nsstreamconverterservice__h___
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#include "nsIStreamConverterService.h"
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#include "nsIStreamListener.h"
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#include "nsHashtable.h"
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#include "nsCOMArray.h"
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#include "nsTArray.h"
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#include "nsIAtom.h"
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class nsStreamConverterService : public nsIStreamConverterService {
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public:
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/////////////////////////////////////////////////////
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// nsISupports methods
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NS_DECL_ISUPPORTS
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/////////////////////////////////////////////////////
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// nsIStreamConverterService methods
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NS_DECL_NSISTREAMCONVERTERSERVICE
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/////////////////////////////////////////////////////
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// nsStreamConverterService methods
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nsStreamConverterService();
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virtual ~nsStreamConverterService();
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// Initialization routine. Must be called after this object is constructed.
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nsresult Init();
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private:
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// Responsible for finding a converter for the given MIME-type.
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nsresult FindConverter(const char *aContractID, nsTArray<nsCString> **aEdgeList);
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nsresult BuildGraph(void);
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nsresult AddAdjacency(const char *aContractID);
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nsresult ParseFromTo(const char *aContractID, nsCString &aFromRes, nsCString &aToRes);
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// member variables
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nsObjectHashtable *mAdjacencyList;
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};
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///////////////////////////////////////////////////////////////////
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// Breadth-First-Search (BFS) algorithm state classes and types.
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// used to establish discovered vertecies.
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enum BFScolors {white, gray, black};
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struct BFSState {
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BFScolors color;
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PRInt32 distance;
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nsCStringKey *predecessor;
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~BFSState() {
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delete predecessor;
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}
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};
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// adjacency list and BFS hashtable data class.
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struct SCTableData {
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nsCStringKey *key;
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union _data {
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BFSState *state;
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nsCOMArray<nsIAtom> *edges;
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} data;
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SCTableData(nsCStringKey* aKey) : key(aKey) {
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data.state = nsnull;
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}
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};
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#endif // __nsstreamconverterservice__h___
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