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75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsXMLNameSpaceMap_h_
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#define nsXMLNameSpaceMap_h_
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#include "nsString.h"
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#include "nsTArray.h"
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#include "nsCOMPtr.h"
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#include "nsIAtom.h"
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struct nsNameSpaceEntry
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{
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nsNameSpaceEntry(nsIAtom *aPrefix)
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: prefix(aPrefix) {}
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nsCOMPtr<nsIAtom> prefix;
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PRInt32 nameSpaceID;
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};
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/**
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* nsXMLNameSpaceMap contains a set of prefixes which are mapped onto
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* namespaces. It allows the set to be searched by prefix or by namespace ID.
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*/
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class nsXMLNameSpaceMap
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{
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public:
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/**
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* Allocates a new nsXMLNameSpaceMap (with new()) and if aForXML is
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* true initializes it with the xmlns and xml namespaces.
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*/
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static NS_HIDDEN_(nsXMLNameSpaceMap*) Create(bool aForXML);
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/**
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* Add a prefix and its corresponding namespace ID to the map.
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* Passing a null |aPrefix| corresponds to the default namespace, which may
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* be set to something other than kNameSpaceID_None.
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*/
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NS_HIDDEN_(nsresult) AddPrefix(nsIAtom *aPrefix, PRInt32 aNameSpaceID);
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/**
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* Add a prefix and a namespace URI to the map. The URI will be converted
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* to its corresponding namespace ID.
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*/
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NS_HIDDEN_(nsresult) AddPrefix(nsIAtom *aPrefix, nsString &aURI);
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/*
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* Returns the namespace ID for the given prefix, if it is in the map.
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* If |aPrefix| is null and is not in the map, then a null namespace
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* (kNameSpaceID_None) is returned. If |aPrefix| is non-null and is not in
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* the map, then kNameSpaceID_Unknown is returned.
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*/
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NS_HIDDEN_(PRInt32) FindNameSpaceID(nsIAtom *aPrefix) const;
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/**
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* If the given namespace ID is in the map, then the first prefix which
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* maps to that namespace is returned. Otherwise, null is returned.
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*/
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NS_HIDDEN_(nsIAtom*) FindPrefix(PRInt32 aNameSpaceID) const;
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/* Removes all prefix mappings. */
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NS_HIDDEN_(void) Clear();
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~nsXMLNameSpaceMap() { Clear(); }
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private:
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nsXMLNameSpaceMap() NS_HIDDEN; // use Create() to create new instances
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nsTArray<nsNameSpaceEntry> mNameSpaces;
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};
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#endif
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