src/selection/SelectionEvaluator.hpp

/*
 * Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
 *
 * The University of Notre Dame grants you ("Licensee") a
 * non-exclusive, royalty free, license to use, modify and
 * redistribute this software in source and binary code form, provided
 * that the following conditions are met:
 *
 * 1. Acknowledgement of the program authors must be made in any
 *    publication of scientific results based in part on use of the
 *    program.  An acceptable form of acknowledgement is citation of
 *    the article in which the program was described (Matthew
 *    A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
 *    J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
 *    Parallel Simulation Engine for Molecular Dynamics,"
 *    J. Comput. Chem. 26, pp. 252-271 (2005))
 *
 * 2. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 3. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the
 *    distribution.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. All express or implied conditions, representations and
 * warranties, including any implied warranty of merchantability,
 * fitness for a particular purpose or non-infringement, are hereby
 * excluded.  The University of Notre Dame and its licensors shall not
 * be liable for any damages suffered by licensee as a result of
 * using, modifying or distributing the software or its
 * derivatives. In no event will the University of Notre Dame or its
 * licensors be liable for any lost revenue, profit or data, or for
 * direct, indirect, special, consequential, incidental or punitive
 * damages, however caused and regardless of the theory of liability,
 * arising out of the use of or inability to use software, even if the
 * University of Notre Dame has been advised of the possibility of
 * such damages.
 */

#ifndef SELECTION_SELECTIONEVALUATOR_HPP
#define SELECTION_SELECTIONEVALUATOR_HPP

#include <map>
#include <string>
#include <vector>

#include "brains/SimInfo.hpp"
#include "selection/Token.hpp"
#include "selection/SelectionCompiler.hpp"
#include "utils/BitSet.hpp"

namespace oopse {

class Context {
    std::string filename;
    std::tring script;
    std::vector<int> linenumbers;
    std::vector<int> lineIndices;
    std::vector<std::vector<Token> > aatoken;
    int pc;
}

/**
 * @class SelectionEvaluator SelectionEvaluator.hpp "selection/SelectionEvaluator"
 * @brief Evalute the tokens compiled by SelectionCompiler and return a BitSet
 */
class SelectionEvaluator{
    public:

        SelectionEvaluator(SimInfo* info, const std::string& script);


        BitSet evaluate();
        
        BitSet evaluate(int frameNo);

        /**
         * Tests if the result from evaluation of script is static.
         * @return true if the result keeps the same even the frame change, otherwise return false
         */         
        bool isStatic();

        bool hadRuntimeError() const{
            return error;
        }

        std::string getErrorMessage() const {
            return errorMessage;
        }


        int getLinenumber() {
            return linenumbers[pc];
        }

        std::string getLine() {
            int ichBegin = lineIndices[pc];
            int ichEnd;
            if ((ichEnd = script.find('\r', ichBegin)) == std::string:npos &&
                (ichEnd = script.find('\n', ichBegin)) == std::string:npos) {
                ichEnd = script.size();
            }            
            return script.substr(ichBegin, ichEnd);
        }
  
    private:

        void clearState();
        
        bool loadScript(const std::string& filename, const std::string& script); 

        bool loadScriptString(const std::string& script);

        bool loadScriptFileInternal(const std::string& filename);

        void clearDefinitionsAndLoadPredefined();
         
        void define();
 
        void predefine();

        void instructionDispatchLoop();

        withinInstruction(Token instruction, BitSet , BitSet);

        BitSet expression(std::vector<Token>& tokens, int pc);

        SelectionCompiler compiler;

        const static int scriptLevelMax = 10;
        int scriptLevel;

        Context stack[scriptLevelMax];

        std::string filename;
        std::string script;
        std::vector<int> linenumbers;
        std::vector<int> lineIndices;
        std::vector<std::vector<Token> > aatoken;
        int pc; // program counter

        boolean error;
        std::string errorMessage;

        std::vector<Token> statement;
        int statementLength;

        SimInfo* info_;

        std::map<std::string, std::vector<Token> > variables_;
        std::string script_;

        Hashtable variables = new Hashtable();        
};

}
#endif
Revision:	1962
Committed:	Tue Feb 1 22:49:23 2005 UTC (19 years, 5 months ago) by tim
File size:	4989 byte(s)
Log Message:	Selection in progress
#	Content
1	/*
2	* Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3	*
4	* The University of Notre Dame grants you ("Licensee") a
5	* non-exclusive, royalty free, license to use, modify and
6	* redistribute this software in source and binary code form, provided
7	* that the following conditions are met:
8	*
9	* 1. Acknowledgement of the program authors must be made in any
10	* publication of scientific results based in part on use of the
11	* program. An acceptable form of acknowledgement is citation of
12	* the article in which the program was described (Matthew
13	* A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14	* J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15	* Parallel Simulation Engine for Molecular Dynamics,"
16	* J. Comput. Chem. 26, pp. 252-271 (2005))
17	*
18	* 2. Redistributions of source code must retain the above copyright
19	* notice, this list of conditions and the following disclaimer.
20	*
21	* 3. Redistributions in binary form must reproduce the above copyright
22	* notice, this list of conditions and the following disclaimer in the
23	* documentation and/or other materials provided with the
24	* distribution.
25	*
26	* This software is provided "AS IS," without a warranty of any
27	* kind. All express or implied conditions, representations and
28	* warranties, including any implied warranty of merchantability,
29	* fitness for a particular purpose or non-infringement, are hereby
30	* excluded. The University of Notre Dame and its licensors shall not
31	* be liable for any damages suffered by licensee as a result of
32	* using, modifying or distributing the software or its
33	* derivatives. In no event will the University of Notre Dame or its
34	* licensors be liable for any lost revenue, profit or data, or for
35	* direct, indirect, special, consequential, incidental or punitive
36	* damages, however caused and regardless of the theory of liability,
37	* arising out of the use of or inability to use software, even if the
38	* University of Notre Dame has been advised of the possibility of
39	* such damages.
40	*/
41
42	#ifndef SELECTION_SELECTIONEVALUATOR_HPP
43	#define SELECTION_SELECTIONEVALUATOR_HPP
44
45	#include <map>
46	#include <string>
47	#include <vector>
48
49	#include "brains/SimInfo.hpp"
50	#include "selection/Token.hpp"
51	#include "selection/SelectionCompiler.hpp"
52	#include "utils/BitSet.hpp"
53
54	namespace oopse {
55
56	class Context {
57	std::string filename;
58	std::tring script;
59	std::vector<int> linenumbers;
60	std::vector<int> lineIndices;
61	std::vector<std::vector<Token> > aatoken;
62	int pc;
63	}
64
65	/**
66	* @class SelectionEvaluator SelectionEvaluator.hpp "selection/SelectionEvaluator"
67	* @brief Evalute the tokens compiled by SelectionCompiler and return a BitSet
68	*/
69	class SelectionEvaluator{
70	public:
71
72	SelectionEvaluator(SimInfo* info, const std::string& script);
73
74
75	BitSet evaluate();
76
77	BitSet evaluate(int frameNo);
78
79	/**
80	* Tests if the result from evaluation of script is static.
81	* @return true if the result keeps the same even the frame change, otherwise return false
82	*/
83	bool isStatic();
84
85	bool hadRuntimeError() const{
86	return error;
87	}
88
89	std::string getErrorMessage() const {
90	return errorMessage;
91	}
92
93
94	int getLinenumber() {
95	return linenumbers[pc];
96	}
97
98	std::string getLine() {
99	int ichBegin = lineIndices[pc];
100	int ichEnd;
101	if ((ichEnd = script.find('\r', ichBegin)) == std::string:npos &&
102	(ichEnd = script.find('\n', ichBegin)) == std::string:npos) {
103	ichEnd = script.size();
104	}
105	return script.substr(ichBegin, ichEnd);
106	}
107
108	private:
109
110	void clearState();
111
112	bool loadScript(const std::string& filename, const std::string& script);
113
114	bool loadScriptString(const std::string& script);
115
116	bool loadScriptFileInternal(const std::string& filename);
117
118	void clearDefinitionsAndLoadPredefined();
119
120	void define();
121
122	void predefine();
123
124	void instructionDispatchLoop();
125
126	withinInstruction(Token instruction, BitSet , BitSet);
127
128	BitSet expression(std::vector<Token>& tokens, int pc);
129
130	SelectionCompiler compiler;
131
132	const static int scriptLevelMax = 10;
133	int scriptLevel;
134
135	Context stack[scriptLevelMax];
136
137	std::string filename;
138	std::string script;
139	std::vector<int> linenumbers;
140	std::vector<int> lineIndices;
141	std::vector<std::vector<Token> > aatoken;
142	int pc; // program counter
143
144	boolean error;
145	std::string errorMessage;
146
147	std::vector<Token> statement;
148	int statementLength;
149
150	SimInfo* info_;
151
152	std::map<std::string, std::vector<Token> > variables_;
153	std::string script_;
154
155	Hashtable variables = new Hashtable();
156	};
157
158	}
159	#endif