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 {
    public:
        
        void clear() {
            linenumbers.clear();
            lineIndices.clear();
            aatoken.clear();
        }
        
        std::string filename;
        std::string 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);
        bool loadScriptFile(const std::string& filename);

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

        void instructionDispatchLoop();

        void withinInstruction(const Token& instruction, BitSet& , BitSet&);

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


        void evalError(const std::string& message);

        void unrecognizedCommand(const Token& token) {
            evalError("unrecognized command:" + token.value);
        }        
        
        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

        bool error;
        std::string errorMessage;

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

        SimInfo* info;

        std::map<std::string, std::vector<Token> > variables;
};

}
#endif
Revision:	1966
Committed:	Thu Feb 3 14:04:59 2005 UTC (19 years, 5 months ago) by tim
File size:	5374 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	public:
58
59	void clear() {
60	linenumbers.clear();
61	lineIndices.clear();
62	aatoken.clear();
63	}
64
65	std::string filename;
66	std::string script;
67	std::vector<int> linenumbers;
68	std::vector<int> lineIndices;
69	std::vector<std::vector<Token> > aatoken;
70	int pc;
71	};
72
73	/**
74	* @class SelectionEvaluator SelectionEvaluator.hpp "selection/SelectionEvaluator"
75	* @brief Evalute the tokens compiled by SelectionCompiler and return a BitSet
76	*/
77	class SelectionEvaluator{
78	public:
79
80	SelectionEvaluator(SimInfo* info, const std::string& script);
81
82
83	BitSet evaluate();
84
85	BitSet evaluate(int frameNo);
86
87	/**
88	* Tests if the result from evaluation of script is static.
89	* @return true if the result keeps the same even the frame change, otherwise return false
90	*/
91	bool isStatic();
92
93	bool hadRuntimeError() const{
94	return error;
95	}
96
97	std::string getErrorMessage() const {
98	return errorMessage;
99	}
100
101
102	int getLinenumber() {
103	return linenumbers[pc];
104	}
105
106	std::string getLine() {
107	int ichBegin = lineIndices[pc];
108	int ichEnd;
109	if ((ichEnd = script.find('\r', ichBegin)) == std::string::npos &&
110	(ichEnd = script.find('\n', ichBegin)) == std::string::npos) {
111	ichEnd = script.size();
112	}
113	return script.substr(ichBegin, ichEnd);
114	}
115
116	private:
117
118	void clearState();
119
120	bool loadScript(const std::string& filename, const std::string& script);
121	bool loadScriptString(const std::string& script);
122	bool loadScriptFileInternal(const std::string& filename);
123	bool loadScriptFile(const std::string& filename);
124
125	void clearDefinitionsAndLoadPredefined();
126
127	void define();
128	void select();
129	void predefine();
130
131	void instructionDispatchLoop();
132
133	void withinInstruction(const Token& instruction, BitSet& , BitSet&);
134
135	BitSet expression(std::vector<Token>& tokens, int pc);
136
137
138	void evalError(const std::string& message);
139
140	void unrecognizedCommand(const Token& token) {
141	evalError("unrecognized command:" + token.value);
142	}
143
144	SelectionCompiler compiler;
145
146	const static int scriptLevelMax = 10;
147	int scriptLevel;
148
149	Context stack[scriptLevelMax];
150
151	std::string filename;
152	std::string script;
153	std::vector<int> linenumbers;
154	std::vector<int> lineIndices;
155	std::vector<std::vector<Token> > aatoken;
156	int pc; // program counter
157
158	bool error;
159	std::string errorMessage;
160
161	std::vector<Token> statement;
162	int statementLength;
163
164	SimInfo* info;
165
166	std::map<std::string, std::vector<Token> > variables;
167	};
168
169	}
170	#endif