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root/OpenMD/trunk/src/selection/SelectionEvaluator.cpp
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Comparing trunk/src/selection/SelectionEvaluator.cpp (file contents):
Revision 283 by tim, Thu Feb 3 23:14:05 2005 UTC vs.
Revision 418 by tim, Thu Mar 10 16:14:07 2005 UTC

# Line 49 | Line 49 | namespace oopse {
49   namespace oopse {
50  
51  
52 < SelectionEvaluator::SelectionEvaluator(SimInfo* si, const std::string& script) : info(si), finder(info){
52 > SelectionEvaluator::SelectionEvaluator(SimInfo* si)
53 >    : info(si), nameFinder(info), distanceFinder(info), indexFinder(info), isLoaded_(false){
54 >    
55 >    nStuntDouble = info->getNGlobalAtoms() + info->getNRigidBodies();
56   }            
57  
58   bool SelectionEvaluator::loadScript(const std::string& filename, const std::string& script) {
59 +    clearDefinitionsAndLoadPredefined();
60      this->filename = filename;
61      this->script = script;
62      if (! compiler.compile(filename, script)) {
63          error = true;
64          errorMessage = compiler.getErrorMessage();
65 +        std::cerr << "SelectionCompiler Error: " << errorMessage << std::endl;
66          return false;
67      }
68  
# Line 65 | Line 70 | bool SelectionEvaluator::loadScript(const std::string&
70      aatoken = compiler.getAatokenCompiled();
71      linenumbers = compiler.getLineNumbers();
72      lineIndices = compiler.getLineIndices();
73 +
74 +    std::vector<std::vector<Token> >::const_iterator i;  
75 +
76 +    isDynamic_ = false;
77 +    for (i = aatoken.begin(); i != aatoken.end(); ++i) {
78 +        if (containDynamicToken(*i)) {
79 +            isDynamic_ = true;
80 +            break;
81 +        }
82 +    }
83 +
84 +    isLoaded_ = true;
85      return true;
86   }
87  
88   void SelectionEvaluator::clearState() {
72 –    for (int i = scriptLevelMax; --i >= 0; )
73 –        stack[i].clear();
74 –    scriptLevel = 0;
89      error = false;
90      errorMessage = "";
91   }
# Line 87 | Line 101 | bool SelectionEvaluator::loadScriptFileInternal(const
101   }
102  
103   bool SelectionEvaluator::loadScriptFileInternal(const  std::string & filename) {
104 <    return true; /**@todo */
105 < }
104 >  std::ifstream ifs(filename.c_str());
105 >    if (!ifs.is_open()) {
106 >        return false;
107 >    }
108  
109 < void SelectionEvaluator::instructionDispatchLoop(){
109 >    const int bufferSize = 65535;
110 >    char buffer[bufferSize];
111 >    std::string script;
112 >    while(ifs.getline(buffer, bufferSize)) {
113 >        script += buffer;
114 >    }
115 >    return loadScript(filename, script);
116 > }
117  
118 + void SelectionEvaluator::instructionDispatchLoop(BitSet& bs){
119 +    
120      while ( pc < aatoken.size()) {
121          statement = aatoken[pc++];
122          statementLength = statement.size();
# Line 101 | Line 126 | void SelectionEvaluator::instructionDispatchLoop(){
126                  define();
127              break;
128              case Token::select:
129 <                select();
129 >                select(bs);
130              break;
131              default:
132                  unrecognizedCommand(token);
133              return;
134          }
135      }
136 +
137   }
138  
139    BitSet SelectionEvaluator::expression(const std::vector<Token>& code, int pcStart) {
140      BitSet bs;
141      std::stack<BitSet> stack;
142      
143 <    for (int pc = pcStart; ; ++pc) {
143 >    for (int pc = pcStart; pc < code.size(); ++pc) {
144        Token instruction = code[pc];
145  
146        switch (instruction.tok) {
# Line 154 | Line 180 | void SelectionEvaluator::instructionDispatchLoop(){
180        case Token::name:
181          stack.push(nameInstruction(boost::any_cast<std::string>(instruction.value)));
182          break;
183 +      case Token::index:
184 +        stack.push(indexInstruction(instruction.value));
185          break;
186        case Token::identifier:
187          stack.push(lookupValue(boost::any_cast<std::string>(instruction.value)));
# Line 184 | Line 212 | BitSet SelectionEvaluator::comparatorInstruction(const
212      float comparisonValue = boost::any_cast<float>(instruction.value);
213      float propertyValue;
214      BitSet bs(nStuntDouble);
215 +    bs.clearAll();
216      
217      SimInfo::MoleculeIterator mi;
218      Molecule* mol;
# Line 198 | Line 227 | BitSet SelectionEvaluator::comparatorInstruction(const
227              compareProperty(atom, bs, property, comparator, comparisonValue);
228          }
229          
201 –        //change the positions of atoms which belong to the rigidbodies
230          for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) {
231              compareProperty(rb, bs, property, comparator, comparisonValue);
232          }        
# Line 250 | Line 278 | void SelectionEvaluator::withinInstruction(const Token
278   }
279  
280   void SelectionEvaluator::withinInstruction(const Token& instruction, BitSet& bs){
281 <
281 >    
282      boost::any withinSpec = instruction.value;
283 +    float distance;
284      if (withinSpec.type() == typeid(float)){
285 <        //
286 <        return;
285 >        distance = boost::any_cast<float>(withinSpec);
286 >    } else if (withinSpec.type() == typeid(int)) {
287 >        distance = boost::any_cast<int>(withinSpec);    
288 >    } else {
289 >        evalError("casting error in withinInstruction");
290 >        bs.clearAll();
291      }
292      
293 <    evalError("Unrecognized within parameter");
293 >    bs = distanceFinder.find(bs, distance);            
294   }
295  
296   void SelectionEvaluator::define() {
# Line 265 | Line 298 | void SelectionEvaluator::define() {
298  
299      std::string variable = boost::any_cast<std::string>(statement[1].value);
300  
301 <    variables.insert(std::make_pair(variable, expression(statement, 2)));
301 >    variables.insert(VariablesType::value_type(variable, expression(statement, 2)));
302   }
303  
304  
# Line 284 | Line 317 | void SelectionEvaluator::predefine(const std::string&
317              int tok = statement[1].tok;
318              if (tok == Token::identifier || (tok & Token::predefinedset) == Token::predefinedset) {
319                  std::string variable = boost::any_cast<std::string>(statement[1].value);
320 <                variables.insert(std::make_pair(variable, statement));
320 >                variables.insert(VariablesType::value_type(variable, statement));
321  
322              } else {
323                  evalError("invalid variable name:" + script);
# Line 301 | Line 334 | void SelectionEvaluator::predefine(const std::string&
334  
335   }
336  
337 < void SelectionEvaluator::select(){
338 <    //viewer.setSelectionSet(expression(statement, 1));
337 > void SelectionEvaluator::select(BitSet& bs){
338 >    bs = expression(statement, 1);
339   }
340  
341   BitSet SelectionEvaluator::lookupValue(const std::string& variable){
342  
343 +    BitSet bs(nStuntDouble);
344      std::map<std::string, boost::any>::iterator i = variables.find(variable);
345 <
345 >    
346      if (i != variables.end()) {
347          if (i->second.type() == typeid(BitSet)) {
348              return boost::any_cast<BitSet>(i->second);
349          } else if (i->second.type() ==  typeid(std::vector<Token>)){
350 <            BitSet bs = expression(boost::any_cast<std::vector<Token> >(i->second), 2);
350 >            bs = expression(boost::any_cast<std::vector<Token> >(i->second), 2);
351              i->second =  bs; /**@todo fixme */
352              return bs;
353          }
354      } else {
355          unrecognizedIdentifier(variable);
356      }
357 +
358 +    return bs;
359   }
360  
361   BitSet SelectionEvaluator::nameInstruction(const std::string& name){
326 –    BitSet bs(nStuntDouble);
362      
363 <    bool hasError = finder.match(name, bs);
364 <    
330 <    return bs;    
363 >    return nameFinder.match(name);
364 >
365   }    
366  
367 + bool SelectionEvaluator::containDynamicToken(const std::vector<Token>& tokens){
368 +    std::vector<Token>::const_iterator i;
369 +    for (i = tokens.begin(); i != tokens.end(); ++i) {
370 +        if (i->tok & Token::dynamic) {
371 +            return true;
372 +        }
373 +    }
374  
375 +    return false;
376 + }    
377 +
378 + void SelectionEvaluator::clearDefinitionsAndLoadPredefined() {
379 +    variables.clear();
380 +    //load predefine
381 +    //predefine();
382   }
383 +
384 + BitSet SelectionEvaluator::evaluate() {
385 +    BitSet bs(nStuntDouble);
386 +    if (isLoaded_) {
387 +        pc = 0;
388 +        instructionDispatchLoop(bs);
389 +    }
390 +
391 +    return bs;
392 + }
393 +
394 + BitSet SelectionEvaluator::indexInstruction(const boost::any& value) {
395 +    BitSet bs(nStuntDouble);
396 +
397 +    if (value.type() == typeid(int)) {
398 +        int index = boost::any_cast<int>(value);
399 +        if (index < 0 || index >= bs.size()) {
400 +            invalidIndex(index);
401 +        } else {
402 +            bs = indexFinder.find(index);
403 +        }
404 +    } else if (value.type() == typeid(std::pair<int, int>)) {
405 +        std::pair<int, int> indexRange= boost::any_cast<std::pair<int, int> >(value);
406 +        assert(indexRange.first <= indexRange.second);
407 +        if (indexRange.first < 0 || indexRange.second >= bs.size()) {
408 +            invalidIndexRange(indexRange);
409 +        }else {
410 +            bs = indexFinder.find(indexRange.first, indexRange.second);
411 +        }
412 +    }
413 +
414 +    return bs;
415 + }
416 +
417 + }

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