asmrulpp.h
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上传日期:2007-06-06
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- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _ASMRULPP_H_
- #define _ASMRULPP_H_
- /*
- * These two definintions aren't nested in ASMRuleExpression because
- * of the stoopid 16 bit compiler
- *
- */
- enum Type {
- HX_RE_VARIABLE,
- HX_RE_INTEGER,
- HX_RE_FLOAT,
- HX_RE_OPERATOR
- };
- class Node
- {
- public:
- enum Type m_Type;
- Node* m_pLeft;
- Node* m_pRight;
- };
- class ASMRuleExpression
- {
- public:
- ASMRuleExpression(const char* pExpression);
- ~ASMRuleExpression();
- void Dump();
- BOOL Evaluate(IHXValues* pVars);
- BOOL IsRightEdge();
- float GetLeft();
- float GetRight();
- int GetOperatorAsInt();
- void SetRight( int );
- void SetLeft( int );
- void PreEvaluate(float*& pThreshold, UINT32& ulNumThreshold,
- IHXValues* pVariables, const char* pPreVar);
- BOOL FindVariable(const char* pVariable);
- UINT32 GetNumThresholds() { return m_ulNumThresholds; }
- private:
- class OperatorNode;
- friend class OperatorNode;
- enum Operator {
- HX_RE_GREATER,
- HX_RE_LESS,
- HX_RE_GREATEREQUAL,
- HX_RE_LESSEQUAL,
- HX_RE_EQUAL,
- HX_RE_NOTEQUAL,
- HX_RE_AND,
- HX_RE_OR
- };
- class VariableNode : public Node
- {
- public:
- char* m_Data;
- };
- class IntegerNode : public Node
- {
- public:
- int m_Data;
- };
- class FloatNode : public Node
- {
- public:
- float m_Data;
- };
- class OperatorNode : public Node
- {
- public:
- enum Operator m_Data;
- };
- Node* Parse(char* pExpression, UINT32& ulNumThreshold);
- void RDump(Node* pNode);
- void RDelete(Node* pNode);
- float REvaluate(Node* pNode, IHXValues* pVars);
- float RPreEvaluate(Node* pNode, IHXValues* pVars,
- const char* pPreVar,
- float*& pThreshold, UINT32& ulNumThreshold,
- BOOL& bInvolvesTheOpenVariable);
- BOOL RFindVariable(Node* pNode, const char* pVariable);
- UINT32 m_ulNumThresholds;
- Node* m_pHead;
- };
- class ASMRule
- {
- public:
- ASMRule();
- ~ASMRule();
- void SetExpression(const char* pExpression);
- void Dump();
- IHXValues* m_pRuleProps;
- ASMRuleExpression* m_pRuleExpression;
- };
- #endif /* ifndef _ASMRULPP_H_ */