зеркало из https://github.com/mozilla/gecko-dev.git
157 строки
4.6 KiB
C++
157 строки
4.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (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/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is TransforMiiX XSLT Processor.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Axel Hecht.
|
|
* Portions created by the Initial Developer are Copyright (C) 2001
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Axel Hecht <axel@pike.org>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either the GNU General Public License Version 2 or later (the "GPL"), or
|
|
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
#ifndef __TX_I_XPATH_CONTEXT
|
|
#define __TX_I_XPATH_CONTEXT
|
|
|
|
#include "baseutils.h"
|
|
#include "txAtom.h"
|
|
#include "txError.h"
|
|
|
|
class ExprResult;
|
|
class FunctionCall;
|
|
class Node;
|
|
class String;
|
|
|
|
/*
|
|
* txIParseContext
|
|
*
|
|
* This interface describes the context needed to create
|
|
* XPath Expressions and XSLT Patters.
|
|
* (not completely though. key() requires the ProcessorState, which is
|
|
* not part of this interface.)
|
|
*/
|
|
|
|
class txIParseContext
|
|
{
|
|
public:
|
|
virtual ~txIParseContext()
|
|
{
|
|
}
|
|
|
|
/*
|
|
* Return a namespaceID for a given prefix.
|
|
*/
|
|
virtual nsresult resolveNamespacePrefix(txAtom* aPrefix, PRInt32& aID) = 0;
|
|
|
|
/*
|
|
* Create a FunctionCall, needed for extension function calls and
|
|
* XSLT. XPath function calls are resolved by the Parser.
|
|
*/
|
|
virtual nsresult resolveFunctionCall(txAtom* aName, PRInt32 aID,
|
|
FunctionCall*& aFunction) = 0;
|
|
|
|
/*
|
|
* Callback to be used by the Parser if errors are detected.
|
|
*/
|
|
virtual void receiveError(const String& aMsg, nsresult aRes) = 0;
|
|
};
|
|
|
|
/*
|
|
* txIMatchContext
|
|
*
|
|
* Interface used for matching XSLT Patters.
|
|
* This is the part of txIEvalContext (see below), that is independent
|
|
* of the context node when evaluating a XPath expression, too.
|
|
* When evaluating a XPath expression, |txIMatchContext|s are used
|
|
* to transport the information from Step to Step.
|
|
*/
|
|
class txIMatchContext
|
|
{
|
|
public:
|
|
virtual ~txIMatchContext()
|
|
{
|
|
}
|
|
|
|
/*
|
|
* Return the ExprResult associated with the variable with the
|
|
* given namespace and local name.
|
|
*/
|
|
virtual nsresult getVariable(PRInt32 aNamespace, txAtom* aLName,
|
|
ExprResult*& aResult) = 0;
|
|
|
|
/*
|
|
* Is whitespace stripping allowed for the given node?
|
|
* See http://www.w3.org/TR/xslt#strip
|
|
*/
|
|
virtual MBool isStripSpaceAllowed(Node* aNode) = 0;
|
|
|
|
/*
|
|
* Callback to be used by the expression/pattern if errors are detected.
|
|
*/
|
|
virtual void receiveError(const String& aMsg, nsresult aRes) = 0;
|
|
};
|
|
|
|
#define TX_DECL_MATCH_CONTEXT \
|
|
nsresult getVariable(PRInt32 aNamespace, txAtom* aLName, \
|
|
ExprResult*& aResult); \
|
|
MBool isStripSpaceAllowed(Node* aNode); \
|
|
void receiveError(const String& aMsg, nsresult aRes)
|
|
|
|
class txIEvalContext : public txIMatchContext
|
|
{
|
|
public:
|
|
virtual ~txIEvalContext()
|
|
{
|
|
}
|
|
|
|
/*
|
|
* Get the context node.
|
|
*/
|
|
virtual Node* getContextNode() = 0;
|
|
|
|
/*
|
|
* Get the size of the context node set.
|
|
*/
|
|
virtual PRUint32 size() = 0;
|
|
|
|
/*
|
|
* Get the position of the context node in the context node set,
|
|
* starting with 1.
|
|
*/
|
|
virtual PRUint32 position() = 0;
|
|
};
|
|
|
|
#define TX_DECL_EVAL_CONTEXT \
|
|
TX_DECL_MATCH_CONTEXT; \
|
|
Node* getContextNode(); \
|
|
PRUint32 size(); \
|
|
PRUint32 position()
|
|
|
|
#endif // __TX_I_XPATH_CONTEXT
|