Project CMSSW displayed by LXR CMSSW_13_2_X_2023-05-29-2300/​DataFormats/​L1GlobalTrigger/​src/​L1GtLogicParser.cc	Source navigation Diff markup Identifier search General search
	Version: CMSSW_13_2_X_2023-05-29-2300 CMSSW_13_2_X_2023-05-28-2300 CMSSW_13_2_X_2023-05-26-2300 CMSSW_13_2_X_2023-05-25-2300 CMSSW_13_2_X_2023-05-24-2300 CMSSW_13_2_X_2023-05-23-2300 Revert   Change

File indexing completed on 2023-03-17 10:50:19

 /**
  * \class L1GtLogicParser
  *
  *
  * Description: see header file.
  *
  * Implementation:
  *    <TODO: enter implementation details>
  *
  * \author: Vasile Mihai Ghete - HEPHY Vienna
  *
  *
  */
 
 // this class header
 #include "DataFormats/L1GlobalTrigger/interface/L1GtLogicParser.h"
 
 // system include files
 #include <stack>
 
 #include <iostream>
 #include <sstream>
 
 #include <boost/algorithm/string.hpp>
 
 // user include files
 
 #include "FWCore/Utilities/interface/EDMException.h"
 #include "FWCore/MessageLogger/interface/MessageLogger.h"
 
 // forward declarations
 
 // constructor(s)
 
 //   default constructor
 L1GtLogicParser::L1GtLogicParser() {
   // empty, default C++ initialization for string and vector are enough
 }
 
 //   from the RPN vector and the operand token vector
 //   no checks for consistency, empty logical and numerical expressions
 //   requires special care when used
 L1GtLogicParser::L1GtLogicParser(const RpnVector& rpnVec, const std::vector<OperandToken>& opTokenVector) {
   m_rpnVector = rpnVec;
   m_operandTokenVector = opTokenVector;
 }
 
 //   from a constant logical expression
 //   numerical expression will be empty
 L1GtLogicParser::L1GtLogicParser(const std::string& logicalExpressionVal) {
   // checks also for syntactic correctness of the logical expression
 
   if (!setLogicalExpression(logicalExpressionVal)) {
     // error(s) in logical expression - printed in the relevant place
     throw cms::Exception("FailModule") << "\nError in parsing the logical expression = " << logicalExpressionVal
                                        << std::endl;
   }
 }
 
 //   from a non-constant logical expression - add/remove spaces if needed
 //   numerical expression will be empty
 L1GtLogicParser::L1GtLogicParser(std::string& logicalExpressionVal) {
   // checks also for syntactic correctness of the logical expression
 
   // add spaces around brackets
   std::string logicalExpressionBS;
   addBracketSpaces(logicalExpressionVal, logicalExpressionBS);
 
   // trim leading or trailing spaces
   boost::trim(logicalExpressionBS);
 
   if (!buildRpnVector(logicalExpressionBS)) {
     // error(s) in logical expression
     throw cms::Exception("FailModule") << "\nError in parsing the logical expression = " << logicalExpressionVal
                                        << std::endl;
   }
 
   //LogDebug("L1GtLogicParser")
   //    << "\nInitial logical expression = '" << logicalExpressionVal << "'"
   //    << "\nFinal   logical expression = '" << logicalExpressionBS << "'\n"
   //    << std::endl;
 
   logicalExpressionVal = logicalExpressionBS;
   m_logicalExpression = logicalExpressionVal;
 
   // build operand token vector
   // dummy tokenNumber; tokenResult false
   buildOperandTokenVector();
 }
 
 //   from a logical and a numerical expression
 L1GtLogicParser::L1GtLogicParser(const std::string logicalExpressionVal, const std::string numericalExpressionVal) {
   // checks also for correctness
 
   if (!setLogicalExpression(logicalExpressionVal)) {
     // error(s) in logical expression - printed in the relevant place
     throw cms::Exception("FailModule") << "\nError in parsing the logical expression = " << logicalExpressionVal
                                        << std::endl;
   }
 
   if (!setNumericalExpression(numericalExpressionVal)) {
     // error(s) in numerical expression - printed in the relevant place
     throw cms::Exception("FileModule") << "\nError in parsing the numerical expression = " << numericalExpressionVal
                                        << std::endl;
   }
 }
 
 //   from a logical and a numerical expression
 //   no checks for correctness - use it only after the correctness was tested
 L1GtLogicParser::L1GtLogicParser(const std::string& logicalExpressionVal,
                                  const std::string& numericalExpressionVal,
                                  const bool dummy) {
   clearRpnVector();
   if (!buildRpnVector(logicalExpressionVal)) {
     throw cms::Exception("FileModule") << "\nError in building RPN vector for the logical expression = "
                                        << logicalExpressionVal << std::endl;
   }
 
   m_logicalExpression = logicalExpressionVal;
   m_numericalExpression = numericalExpressionVal;
 }
 
 // destructor
 L1GtLogicParser::~L1GtLogicParser() {
   // empty now
 }
 
 // public methods
 
 // check a logical expression for correctness - add/remove spaces if needed
 bool L1GtLogicParser::checkLogicalExpression(std::string& logicalExpressionVal) {
   // add spaces around brackets
   std::string logicalExpressionBS;
   addBracketSpaces(logicalExpressionVal, logicalExpressionBS);
 
   // trim leading or trailing spaces
   boost::trim(logicalExpressionBS);
 
   clearRpnVector();
 
   if (!buildRpnVector(logicalExpressionBS)) {
     return false;
   }
 
   LogDebug("L1GtLogicParser") << "\nL1GtLogicParser::checkLogicalExpression - "
                               << "\nInitial logical expression = '" << logicalExpressionVal << "'"
                               << "\nFinal   logical expression = '" << logicalExpressionBS << "'\n"
                               << std::endl;
 
   logicalExpressionVal = logicalExpressionBS;
 
   return true;
 }
 
 /**
  * buildRpnVector Build the postfix notation.
  *
  * @param expression The expression to be parsed.
  *
  * @return "true" if everything was parsed. "false" if an error occured.
  *
  */
 
 bool L1GtLogicParser::buildRpnVector(const std::string& logicalExpressionVal) {
   //LogDebug("L1GtLogicParser")
   //<< "\nL1GtLogicParser::buildRpnVector - "
   //<< "\nLogical expression = '" << logicalExpressionVal << "'\n"
   //<< std::endl;
 
   OperationType actualOperation = OP_NULL;
   OperationType lastOperation = OP_NULL;
 
   // token as string and as TokenRPN, stack to form the postfix notation
   std::string tokenString;
   TokenRPN rpnToken;
   std::stack<TokenRPN> operatorStack;
 
   static const std::string whitespaces = " \r\v\n\t";
 
   // clear possible old rpn vector
   clearRpnVector();
 
   // stringstream to separate all tokens
   std::istringstream exprStringStream(logicalExpressionVal);
 
   while (!exprStringStream.eof()) {
     exprStringStream >> std::skipws >> std::ws >> tokenString;
 
     // skip the end
     if (tokenString.find_first_not_of(whitespaces) == std::string::npos || tokenString.length() == 0) {
       //LogTrace("L1GtLogicParser")
       //<< "  Break for token string = " << tokenString
       //<< std::endl;
 
       break;
     }
 
     actualOperation = getOperation(tokenString, lastOperation, rpnToken);
 
     //LogTrace("L1GtLogicParser")
     //<< "  Token string = '" << tokenString << "'"
     //<< "\tActual Operation = " << actualOperation
     //<< std::endl;
 
     // http://en.wikipedia.org/wiki/Postfix_notation#Converting_from_infix_notation
 
     switch (actualOperation) {
       case OP_OPERAND: {
         // operands get pushed to the postfix notation immediately
         m_rpnVector.push_back(rpnToken);
       }
 
       break;
       case OP_INVALID: {
         int errorPosition = exprStringStream.tellg();
 
         edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << logicalExpressionVal << "'"
                                          << "\n  Syntax error during parsing: "
                                          << "\n     " << exprStringStream.str().substr(0, errorPosition) << "\n     "
                                          << exprStringStream.str().substr(errorPosition)
                                          << "\n  Returned empty RPN vector and result false." << std::endl;
 
         // clear the rpn vector before returning
         clearRpnVector();
 
         return false;
       }
 
       break;
       case OP_NOT: {
         operatorStack.push(rpnToken);
         // there are no operators with higher precedence
       }
 
       break;
       case OP_AND: {
         // first pop operators with higher precedence (NOT)
         while (!operatorStack.empty() && operatorStack.top().operation == OP_NOT) {
           m_rpnVector.push_back(operatorStack.top());
           operatorStack.pop();
         }
         operatorStack.push(rpnToken);
       }
 
       break;
       case OP_OR: {
         // pop operators with higher precedence (AND, NOT)
         while (!operatorStack.empty() &&
                (operatorStack.top().operation == OP_NOT || operatorStack.top().operation == OP_AND)) {
           m_rpnVector.push_back(operatorStack.top());
           operatorStack.pop();
         }
         // push operator on stack
         operatorStack.push(rpnToken);
       }
 
       break;
       case OP_OPENBRACKET: {
         // just push it on stack
         operatorStack.push(rpnToken);
       }
 
       break;
       case OP_CLOSEBRACKET: {
         // check if the operatorStack is empty
         if (operatorStack.empty()) {
           int errorPosition = exprStringStream.tellg();
 
           edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << logicalExpressionVal << "'"
                                            << "\n  Syntax error during parsing - misplaced ')':"
                                            << "\n     " << exprStringStream.str().substr(0, errorPosition) << "\n     "
                                            << exprStringStream.str().substr(errorPosition)
                                            << "\n  Returned empty RPN vector and result false." << std::endl;
 
           // clear the rpn vector before returning
           clearRpnVector();
 
           return false;
         }
 
         // pop stack until a left parenthesis is found
         do {
           if (operatorStack.top().operation != OP_OPENBRACKET) {
             m_rpnVector.push_back(operatorStack.top());  // pop
             operatorStack.pop();
           }
           if (operatorStack.empty()) {  // the operatorStack must not be empty
 
             int errorPosition = exprStringStream.tellg();
 
             edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << logicalExpressionVal << "'"
                                              << "\n  Syntax error during parsing - misplaced ')':"
                                              << "\n     " << exprStringStream.str().substr(0, errorPosition)
                                              << "\n     " << exprStringStream.str().substr(errorPosition)
                                              << "\n  Returned empty RPN vector and result false." << std::endl;
 
             // clear the rpn vector before returning
             clearRpnVector();
             return false;
           }
         } while (operatorStack.top().operation != OP_OPENBRACKET);
 
         operatorStack.pop();  // pop the open bracket.
       }
 
       break;
       default: {
         // empty
       } break;
     }
 
     lastOperation = actualOperation;  // for the next turn
   }
 
   // pop the rest of the operator stack
   while (!operatorStack.empty()) {
     if (operatorStack.top().operation == OP_OPENBRACKET) {
       edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << logicalExpressionVal << "'"
                                        << "\n  Syntax error during parsing - missing ')':"
                                        << "\n  Returned empty RPN vector and result false." << std::endl;
 
       // clear the rpn vector before returning
       clearRpnVector();
       return false;
     }
 
     m_rpnVector.push_back(operatorStack.top());
     operatorStack.pop();
   }
 
   // count all operations and check if the result is 1
   int counter = 0;
   for (RpnVector::iterator it = m_rpnVector.begin(); it != m_rpnVector.end(); it++) {
     if (it->operation == OP_OPERAND)
       counter++;
     if (it->operation == OP_OR || it->operation == OP_AND)
       counter--;
     if (counter < 1) {
       edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << logicalExpressionVal << "'"
                                        << "\n  Syntax error during parsing - too many operators"
                                        << "\n  Returned empty RPN vector and result false." << std::endl;
 
       // clear the rpn vector before returning
       clearRpnVector();
       return false;
     }
   }
 
   if (counter > 1) {
     edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << logicalExpressionVal << "'"
                                      << "\n  Syntax error during parsing - too many operands"
                                      << "\n  Returned empty RPN vector and result false." << std::endl;
 
     // clear the rpn vector before returning
     clearRpnVector();
     return false;
   }
 
   return true;
 }
 
 // clear rpn vector
 void L1GtLogicParser::clearRpnVector() { m_rpnVector.clear(); }
 
 // build from the RPN vector the operand token vector
 // dummy tokenNumber and token result
 void L1GtLogicParser::buildOperandTokenVector() {
   //LogTrace("L1GtLogicParser")
   //<< "\nL1GtLogicParser::buildOperandTokenVector - "
   //<< std::endl;
 
   // reserve memory
   size_t rpnVectorSize = m_rpnVector.size();
   m_operandTokenVector.reserve(rpnVectorSize);
 
   int opNumber = 0;
 
   for (RpnVector::const_iterator it = m_rpnVector.begin(); it != m_rpnVector.end(); it++) {
     //LogTrace("L1GtLogicParser")
     //<< "\nit->operation = " << it->operation
     //<< "\nit->operand =   '" << it->operand << "'\n"
     //<< std::endl;
 
     switch (it->operation) {
       case OP_OPERAND: {
         OperandToken opToken;
         opToken.tokenName = it->operand;
         opToken.tokenNumber = opNumber;
         opToken.tokenResult = false;
 
         m_operandTokenVector.push_back(opToken);
 
       }
 
       break;
       case OP_NOT: {
         // do nothing
       }
 
       break;
       case OP_OR: {
         // do nothing
       }
 
       break;
       case OP_AND: {
         // do nothing
       }
 
       break;
       default: {
         // should not arrive here
       }
 
       break;
     }
 
     opNumber++;
   }
 }
 
 // return the position index of the operand in the logical expression
 int L1GtLogicParser::operandIndex(const std::string& operandNameVal) const {
   int result = -1;
 
   OperationType actualOperation = OP_NULL;
   OperationType lastOperation = OP_NULL;
 
   std::string tokenString;
   TokenRPN rpnToken;  // token to be used by getOperation
 
   // stringstream to separate all tokens
   std::istringstream exprStringStream(m_logicalExpression);
 
   // temporary index for usage in the loop
   int tmpIndex = -1;
 
   while (!exprStringStream.eof()) {
     exprStringStream >> tokenString;
 
     //LogTrace("L1GtLogicParser")
     //<< "Token string = " << tokenString
     //<< std::endl;
 
     actualOperation = getOperation(tokenString, lastOperation, rpnToken);
     if (actualOperation == OP_INVALID) {
       // it should never be invalid
       edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                        << "\n  Invalid operation/operand " << operandNameVal
                                        << "\n  Returned index is by default out of range (-1)." << std::endl;
 
       return result;
     }
 
     if (actualOperation != OP_OPERAND) {
       // do nothing
 
     } else {
       tmpIndex++;
       if (rpnToken.operand == operandNameVal) {
         result = tmpIndex;
 
         //LogDebug("L1GtLogicParser")
         //<< "\nL1GtLogicParser::operandIndex - "
         //<< "\nLogical expression = '" << m_logicalExpression << "'"
         //<< "\nIndex of operand " << operandNameVal << " = " << result
         //<< std::endl;
 
         return result;
       }
     }
     lastOperation = actualOperation;
   }
 
   //
   edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                    << "\n  Operand " << operandNameVal << " not found in the logical expression"
                                    << "\n  Returned index is by default out of range (-1)." << std::endl;
 
   return result;
 }
 
 // return the name of the (iOperand)th operand in the logical expression
 std::string L1GtLogicParser::operandName(const int iOperand) const {
   std::string result;
 
   OperationType actualOperation = OP_NULL;
   OperationType lastOperation = OP_NULL;
 
   std::string tokenString;
   TokenRPN rpnToken;  // token to be used by getOperation
 
   // stringstream to separate all tokens
   std::istringstream exprStringStream(m_logicalExpression);
 
   // temporary index for usage in the loop
   int tmpIndex = -1;
 
   while (!exprStringStream.eof()) {
     exprStringStream >> tokenString;
 
     //LogTrace("L1GtLogicParser")
     //<< "Token string = " << tokenString
     //<< std::endl;
 
     actualOperation = getOperation(tokenString, lastOperation, rpnToken);
     if (actualOperation == OP_INVALID) {
       // it should never be invalid
       edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                        << "\n  Invalid operation/operand at position " << iOperand
                                        << "\n  Returned empty name by default." << std::endl;
 
       return result;
     }
 
     if (actualOperation != OP_OPERAND) {
       // do nothing
 
     } else {
       tmpIndex++;
       if (tmpIndex == iOperand) {
         result = rpnToken.operand;
 
         //LogDebug("L1GtLogicParser")
         //<< "\nL1GtLogicParser::operandName - "
         //<< "\nLogical expression = '" << m_logicalExpression << "'"
         //<< "\nOperand with index " << iOperand << " = " << result
         //<< std::endl;
 
         return result;
       }
     }
     lastOperation = actualOperation;
   }
 
   //
   edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                    << "\n  No operand found at position " << iOperand
                                    << "\n  Returned empty name by default." << std::endl;
 
   return result;
 }
 
 // return the result for an operand with name operandNameVal
 // in the logical expression using the operand token vector
 bool L1GtLogicParser::operandResult(const std::string& operandNameVal) const {
   for (size_t i = 0; i < m_operandTokenVector.size(); ++i) {
     if ((m_operandTokenVector[i]).tokenName == operandNameVal) {
       return (m_operandTokenVector[i]).tokenResult;
     }
   }
 
   // return false - should not arrive here
   edm::LogError("L1GtLogicParser") << "\n  Operand " << operandNameVal << " not found in the operand token vector"
                                    << "\n  Returned false by default." << std::endl;
 
   return false;
 }
 
 // return the result for an operand with tokenNumberVal
 // using the operand token vector
 bool L1GtLogicParser::operandResult(const int tokenNumberVal) const {
   for (size_t i = 0; i < m_operandTokenVector.size(); ++i) {
     if ((m_operandTokenVector[i]).tokenNumber == tokenNumberVal) {
       return (m_operandTokenVector[i]).tokenResult;
     }
   }
 
   // return false - should not arrive here
   edm::LogError("L1GtLogicParser") << "\n  No operand with token number " << tokenNumberVal
                                    << " found in the operand token vector"
                                    << "\n  Returned false by default." << std::endl;
 
   return false;
 }
 
 // return the result for the logical expression
 // require a proper operand token vector
 const bool L1GtLogicParser::expressionResult() const {
   //LogTrace("L1GtLogicParser")
   //<< "\nL1GtLogicParser::expressionResult - "
   //<< std::endl;
 
   // return false if there is no RPN vector built
   if (m_rpnVector.empty()) {
     edm::LogError("L1GtLogicParser") << "\n  No built RPN vector exists."
                                      << "\n  Returned false by default." << std::endl;
     return false;
   }
 
   // stack containing temporary results
   std::stack<bool> resultStack;
   bool b1, b2;
 
   for (RpnVector::const_iterator it = m_rpnVector.begin(); it != m_rpnVector.end(); it++) {
     //LogTrace("L1GtLogicParser")
     //<< "\nit->operation = " << it->operation
     //<< "\nit->operand =   '" << it->operand << "'\n"
     //<< std::endl;
 
     switch (it->operation) {
       case OP_OPERAND: {
         resultStack.push(operandResult(it->operand));
       }
 
       break;
       case OP_NOT: {
         b1 = resultStack.top();
         resultStack.pop();      // pop the top
         resultStack.push(!b1);  // and push the result
       }
 
       break;
       case OP_OR: {
         b1 = resultStack.top();
         resultStack.pop();
         b2 = resultStack.top();
         resultStack.pop();
         resultStack.push(b1 || b2);
       }
 
       break;
       case OP_AND: {
         b1 = resultStack.top();
         resultStack.pop();
         b2 = resultStack.top();
         resultStack.pop();
         resultStack.push(b1 && b2);
       }
 
       break;
       default: {
         // should not arrive here
       }
 
       break;
     }
   }
 
   // get the result in the top of the stack
 
   //LogTrace("L1GtLogicParser")
   //<< "\nL1GtLogicParser::expressionResult - "
   //<< "\nResult = " << resultStack.top()
   //<< std::endl;
 
   return resultStack.top();
 }
 
 // return the result for an operand with name operandNameVal
 // in the logical expression using a numerical expression
 bool L1GtLogicParser::operandResultNumExp(const std::string& operandNameVal) const {
   bool result = false;
 
   // get the position index of the operand in the logical string
   const int iOperand = operandIndex(operandNameVal);
 
   result = operandResult(iOperand);
 
   return result;
 }
 
 // return the result for an operand with index iOperand
 // in the logical expression using a numerical expression
 bool L1GtLogicParser::operandResultNumExp(const int iOperand) const {
   bool result = false;
 
   // parse the numerical expression
 
   OperationType actualOperation = OP_NULL;
   OperationType lastOperation = OP_NULL;
 
   std::string tokenString;
   TokenRPN rpnToken;  // token to be used by getOperation
 
   // stringstream to separate all tokens
   std::istringstream exprStringStream(m_numericalExpression);
 
   // temporary index for usage in the loop
   int tmpIndex = -1;
 
   while (!exprStringStream.eof()) {
     exprStringStream >> tokenString;
 
     //LogTrace("L1GtLogicParser")
     //<< "Token string = " << tokenString
     //<< std::endl;
 
     actualOperation = getOperation(tokenString, lastOperation, rpnToken);
     if (actualOperation == OP_INVALID) {
       // it should never be invalid
       edm::LogError("L1GtLogicParser") << "\nNumerical expression = '" << m_numericalExpression << "'"
                                        << "\n  Invalid operation/operand at position " << iOperand
                                        << "\n  Returned false by default." << std::endl;
 
       result = false;
       return result;
     }
 
     if (actualOperation != OP_OPERAND) {
       // do nothing
 
     } else {
       tmpIndex++;
       if (tmpIndex == iOperand) {
         if (rpnToken.operand == "1") {
           result = true;
         } else {
           if (rpnToken.operand == "0") {
             result = false;
           } else {
             // something went wrong - break
             //
             edm::LogError("L1GtLogicParser") << "\nNumerical expression = '" << m_numericalExpression << "'"
                                              << "\n  Invalid result for operand at position " << iOperand << ": "
                                              << rpnToken.operand << "\n  It must be 0 or 1"
                                              << "\n  Returned false by default." << std::endl;
 
             result = false;
             return result;
           }
         }
 
         //LogDebug("L1GtLogicParser")
         //<< "\nL1GtLogicParser::operandResult - "
         //<< "\nNumerical expression = '" << m_numericalExpression << "'"
         //<< "\nResult for operand with index " << iOperand
         //<< " = " << result << "'\n"
         //<< std::endl;
 
         return result;
       }
     }
     lastOperation = actualOperation;
   }
 
   //
   edm::LogError("L1GtLogicParser") << "\nNumerical expression = '" << m_numericalExpression << "'"
                                    << "\n  No operand found at position " << iOperand
                                    << "\n  Returned false by default." << std::endl;
 
   return result;
 }
 
 // build from the RPN vector the operand token vector
 // using a numerical expression
 void L1GtLogicParser::buildOperandTokenVectorNumExp() {
   //LogTrace("L1GtLogicParser")
   //<< "\nL1GtLogicParser::buildOperandTokenVector - "
   //<< std::endl;
 
   // reserve memory
   size_t rpnVectorSize = m_rpnVector.size();
   m_operandTokenVector.reserve(rpnVectorSize);
 
   int opNumber = 0;
 
   for (RpnVector::const_iterator it = m_rpnVector.begin(); it != m_rpnVector.end(); it++) {
     //LogTrace("L1GtLogicParser")
     //<< "\nit->operation = " << it->operation
     //<< "\nit->operand =   '" << it->operand << "'\n"
     //<< std::endl;
 
     switch (it->operation) {
       case OP_OPERAND: {
         OperandToken opToken;
         opToken.tokenName = it->operand;
         opToken.tokenNumber = opNumber;
         opToken.tokenResult = operandResultNumExp(it->operand);
 
         m_operandTokenVector.push_back(opToken);
 
       }
 
       break;
       case OP_NOT: {
         // do nothing
       }
 
       break;
       case OP_OR: {
         // do nothing
       }
 
       break;
       case OP_AND: {
         // do nothing
       }
 
       break;
       default: {
         // should not arrive here
       }
 
       break;
     }
 
     opNumber++;
   }
 }
 
 // return the result for the logical expression
 const bool L1GtLogicParser::expressionResultNumExp() const {
   //LogTrace("L1GtLogicParser")
   //<< "\nL1GtLogicParser::expressionResult - "
   //<< std::endl;
 
   // return false if there is no expression
   if (m_rpnVector.empty()) {
     edm::LogError("L1GtLogicParser") << "\n  No built RPN vector exists."
                                      << "\n  Returned false by default." << std::endl;
     return false;
   }
 
   // stack containing temporary results
   std::stack<bool> resultStack;
   bool b1, b2;
 
   for (RpnVector::const_iterator it = m_rpnVector.begin(); it != m_rpnVector.end(); it++) {
     //LogTrace("L1GtLogicParser")
     //<< "\nit->operation = " << it->operation
     //<< "\nit->operand =   '" << it->operand << "'\n"
     //<< std::endl;
 
     switch (it->operation) {
       case OP_OPERAND: {
         resultStack.push(operandResultNumExp(it->operand));
       }
 
       break;
       case OP_NOT: {
         b1 = resultStack.top();
         resultStack.pop();      // pop the top
         resultStack.push(!b1);  // and push the result
       }
 
       break;
       case OP_OR: {
         b1 = resultStack.top();
         resultStack.pop();
         b2 = resultStack.top();
         resultStack.pop();
         resultStack.push(b1 || b2);
       }
 
       break;
       case OP_AND: {
         b1 = resultStack.top();
         resultStack.pop();
         b2 = resultStack.top();
         resultStack.pop();
         resultStack.push(b1 && b2);
       }
 
       break;
       default: {
         // should not arrive here
       }
 
       break;
     }
   }
 
   // get the result in the top of the stack
 
   //LogTrace("L1GtLogicParser")
   //<< "\nL1GtLogicParser::expressionResult - "
   //<< "\nLogical expression   = '" << m_logicalExpression << "'"
   //<< "\nNumerical expression = '" << m_numericalExpression << "'"
   //<< "\nResult = " << resultStack.top()
   //<< std::endl;
 
   return resultStack.top();
 }
 
 // convert the logical expression composed with names to
 // a logical expression composed with int numbers using
 // a (string, int)  map
 
 void L1GtLogicParser::convertNameToIntLogicalExpression(const std::map<std::string, int>& nameToIntMap) {
   if (m_logicalExpression.empty()) {
     return;
   }
 
   // non-empty logical expression
 
   OperationType actualOperation = OP_NULL;
   OperationType lastOperation = OP_NULL;
 
   std::string tokenString;
   TokenRPN rpnToken;  // token to be used by getOperation
 
   int intValue = -1;
 
   // stringstream to separate all tokens
   std::istringstream exprStringStream(m_logicalExpression);
   std::string convertedLogicalExpression;
 
   while (!exprStringStream.eof()) {
     exprStringStream >> tokenString;
 
     actualOperation = getOperation(tokenString, lastOperation, rpnToken);
     if (actualOperation == OP_INVALID) {
       // it should never be invalid
       edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                        << "\n  Invalid operation/operand in logical expression."
                                        << "\n  Return empty logical expression." << std::endl;
 
       m_logicalExpression.clear();
       return;
     }
 
     if (actualOperation != OP_OPERAND) {
       convertedLogicalExpression.append(getRuleFromType(actualOperation)->opString);
 
     } else {
       typedef std::map<std::string, int>::const_iterator CIter;
 
       CIter it = nameToIntMap.find(rpnToken.operand);
       if (it != nameToIntMap.end()) {
         intValue = it->second;
         std::stringstream intStr;
         intStr << intValue;
         convertedLogicalExpression.append(intStr.str());
 
       } else {
         // it should never be happen
         edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                          << "\n  Could not convert " << rpnToken.operand << " to integer!"
                                          << "\n  Return empty logical expression." << std::endl;
 
         m_logicalExpression.clear();
         return;
       }
     }
 
     convertedLogicalExpression.append(" ");  // one whitespace after each token
     lastOperation = actualOperation;
   }
 
   // remove the last space
   //convertedLogicalExpression.erase(convertedLogicalExpression.size() - 1);
   boost::trim(convertedLogicalExpression);
 
   LogDebug("L1GtLogicParser") << "\nL1GtLogicParser::convertNameToIntLogicalExpression - "
                               << "\nLogical expression (strings) = '" << m_logicalExpression << "'"
                               << "\nLogical expression (int)     = '" << convertedLogicalExpression << "'\n"
                               << std::endl;
 
   // replace now the logical expression with strings with
   // the converted logical expression
 
   m_logicalExpression = convertedLogicalExpression;
 
   return;
 }
 
 // convert a logical expression composed with integer numbers to
 // a logical expression composed with names using a map (int, string)
 
 void L1GtLogicParser::convertIntToNameLogicalExpression(const std::map<int, std::string>& intToNameMap) {
   if (m_logicalExpression.empty()) {
     return;
   }
 
   // non-empty logical expression
 
   OperationType actualOperation = OP_NULL;
   OperationType lastOperation = OP_NULL;
 
   std::string tokenString;
   TokenRPN rpnToken;  // token to be used by getOperation
 
   // stringstream to separate all tokens
   std::istringstream exprStringStream(m_logicalExpression);
   std::string convertedLogicalExpression;
 
   while (!exprStringStream.eof()) {
     exprStringStream >> tokenString;
 
     actualOperation = getOperation(tokenString, lastOperation, rpnToken);
     if (actualOperation == OP_INVALID) {
       // it should never be invalid
       edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                        << "\n  Invalid operation/operand in logical expression."
                                        << "\n  Return empty logical expression." << std::endl;
 
       m_logicalExpression.clear();
       return;
     }
 
     if (actualOperation != OP_OPERAND) {
       convertedLogicalExpression.append(getRuleFromType(actualOperation)->opString);
 
     } else {
       typedef std::map<int, std::string>::const_iterator CIter;
 
       // convert string to int
       int indexInt;
       std::istringstream iss(rpnToken.operand);
       iss >> std::dec >> indexInt;
 
       CIter it = intToNameMap.find(indexInt);
       if (it != intToNameMap.end()) {
         convertedLogicalExpression.append(it->second);
 
       } else {
         // it should never be happen
         edm::LogError("L1GtLogicParser") << "\nLogical expression = '" << m_logicalExpression << "'"
                                          << "\n  Could not convert " << rpnToken.operand << " to string!"
                                          << "\n  Return empty logical expression." << std::endl;
 
         m_logicalExpression.clear();
         return;
       }
     }
 
     convertedLogicalExpression.append(" ");  // one whitespace after each token
     lastOperation = actualOperation;
   }
 
   // remove the last space
   //convertedLogicalExpression.erase(convertedLogicalExpression.size() - 1);
   boost::trim(convertedLogicalExpression);
 
   //LogDebug("L1GtLogicParser")
   //        << "\nL1GtLogicParser::convertIntToNameLogicalExpression - "
   //        << "\nLogical expression (int) =    '" << m_logicalExpression << "'"
   //        << "\nLogical expression (string) = '" << convertedLogicalExpression << "'\n"
   //        << std::endl;
 
   // replace now the logical expression with int with
   // the converted logical expression
 
   m_logicalExpression = convertedLogicalExpression;
 
   return;
 }
 
 // return the list of operand tokens for the logical expression
 // which are to be used as seeds
 std::vector<L1GtLogicParser::OperandToken> L1GtLogicParser::expressionSeedsOperandList() {
   //LogDebug("L1GtLogicParser")
   //<< "\nL1GtLogicParser::expressionSeedsOperandList - "
   //<< "\nLogical expression = '" << m_logicalExpression << "'"
   //<< "\nm_rpnVector.size() = " << m_rpnVector.size()
   //<< "\nm_operandTokenVector.size() = " << m_operandTokenVector.size()
   //<< std::endl;
 
   // seed list
   std::vector<OperandToken> opVector;
   opVector.reserve(m_operandTokenVector.size());
 
   // temporary results
   std::stack<OperandToken> tmpStack;
   std::vector<OperandToken> tmpVector;
   tmpVector.reserve(m_operandTokenVector.size());
 
   OperandToken b1, b2;
 
   bool newOperandBlock = true;
   bool oneBlockOnly = true;
   bool operandOnly = true;
 
   int iOperand = -1;
 
   OperandToken dummyToken;
   dummyToken.tokenName = "dummy";
   dummyToken.tokenNumber = -1;
   dummyToken.tokenResult = false;
 
   for (RpnVector::const_iterator it = m_rpnVector.begin(); it != m_rpnVector.end(); it++) {
     //LogTrace("L1GtLogicParser")
     //<< "\nit->operation = " << it->operation
     //<< "\nit->operand =   '" << it->operand << "'\n"
     //<< std::endl;
 
     switch (it->operation) {
       // RPN always start a block with an operand
       case OP_OPERAND: {
         // more blocks with operations
         // push operands from previous block, if any in the tmpVector
         // (reverse order to compensate the stack push/top/pop)
         if ((!newOperandBlock)) {
           for (std::vector<OperandToken>::reverse_iterator itOp = tmpVector.rbegin(); itOp != tmpVector.rend();
                itOp++) {
             opVector.push_back(*itOp);
 
             //LogTrace("L1GtLogicParser")
             //<< "  Push operand " << (*itOp).tokenName
             //<<" on the seed operand list"
             //<< std::endl;
           }
 
           tmpVector.clear();
 
           newOperandBlock = true;
           oneBlockOnly = false;
         }
 
         iOperand++;
 
         //LogTrace("L1GtLogicParser")
         //<< "  Push operand " << (m_operandTokenVector.at(iOperand)).tokenName
         //<< " on the operand stack"
         //<< std::endl;
 
         tmpStack.push(m_operandTokenVector.at(iOperand));
       }
 
       break;
       case OP_NOT: {
         newOperandBlock = false;
         operandOnly = false;
 
         b1 = tmpStack.top();
         tmpStack.pop();  // pop the top
 
         tmpStack.push(dummyToken);  // and push dummy result
 
         //LogTrace("L1GtLogicParser")
         //<< "  Clear tmp operand list"
         //<< std::endl;
 
         tmpVector.clear();
 
       }
 
       break;
       case OP_OR: {
         newOperandBlock = false;
         operandOnly = false;
 
         b1 = tmpStack.top();
         tmpStack.pop();
         b2 = tmpStack.top();
         tmpStack.pop();
 
         tmpStack.push(dummyToken);  // and push dummy result
 
         if (b1.tokenNumber >= 0) {
           tmpVector.push_back(b1);
 
           //LogTrace("L1GtLogicParser")
           //<< "  Push operand " << b1.tokenName
           //<<" on the tmp list"
           //<< std::endl;
         }
 
         if (b2.tokenNumber >= 0) {
           tmpVector.push_back(b2);
 
           //LogTrace("L1GtLogicParser")
           //<< "  Push operand " << b2.tokenName
           //<<" on the tmp list"
           //<< std::endl;
         }
 
       }
 
       break;
       case OP_AND: {
         newOperandBlock = false;
         operandOnly = false;
 
         b1 = tmpStack.top();
         tmpStack.pop();
         b2 = tmpStack.top();
         tmpStack.pop();
 
         tmpStack.push(dummyToken);
 
         if (b1.tokenNumber >= 0) {
           tmpVector.push_back(b1);
 
           //LogTrace("L1GtLogicParser")
           //<< "  Push operand " << b1.tokenName
           //<<" on the tmp list"
           //<< std::endl;
         }
 
         if (b2.tokenNumber >= 0) {
           tmpVector.push_back(b2);
 
           //LogTrace("L1GtLogicParser")
           //<< "  Push operand " << b2.tokenName
           //<<" on the tmp list"
           //<< std::endl;
         }
 
       }
 
       break;
       default: {
         // should not arrive here
       }
 
       break;
     }
   }
 
   // one block only or one operand only
   if (oneBlockOnly || operandOnly) {
     // one operand only -
     // there can be only one operand, otherwise one needs an operation
     if (operandOnly) {
       b1 = tmpStack.top();
       tmpVector.push_back(b1);
     }
 
     //
     for (std::vector<OperandToken>::reverse_iterator itOp = tmpVector.rbegin(); itOp != tmpVector.rend(); itOp++) {
       opVector.push_back(*itOp);
 
       //LogTrace("L1GtLogicParser")
       //<< "  One block or one operand only: push operand " << (*itOp).tokenName
       //<<" on the seed operand list"
       //<< std::endl;
     }
 
   } else {
     //LogTrace("L1GtLogicParser")
     //        << "  More blocks:  push the last block on the seed operand list" << std::endl;
 
     for (std::vector<OperandToken>::reverse_iterator itOp = tmpVector.rbegin(); itOp != tmpVector.rend(); itOp++) {
       opVector.push_back(*itOp);
 
       //LogTrace("L1GtLogicParser")
       //<< "  Push operand:  " << (*itOp).tokenName
       //<<" on the seed operand list"
       //<< std::endl;
     }
   }
 
   // remove duplicates from the seed vector
   // slow...
   std::vector<OperandToken> opVectorU;
   opVectorU.reserve(opVector.size());
 
   for (std::vector<OperandToken>::const_iterator constIt = opVector.begin(); constIt != opVector.end(); constIt++) {
     bool tokenIncluded = false;
 
     for (std::vector<OperandToken>::iterator itOpU = opVectorU.begin(); itOpU != opVectorU.end(); itOpU++) {
       if ((*itOpU).tokenName == (*constIt).tokenName) {
         tokenIncluded = true;
         break;
       }
     }
 
     if (!tokenIncluded) {
       opVectorU.push_back(*constIt);
     }
   }
 
   return opVectorU;
 }
 
 // private methods
 
 /**
  * getOperation Get the operation from a string and check if it is allowed
  *
  * @param tokenString   The string to examine.
  * @param lastOperation The last operation.
  * @param rpnToken      The destination where the token for postfix notation is written to.
  *
  * @return              The Operation type or OP_INVALID, if the operation is not allowed
  *
  */
 
 L1GtLogicParser::OperationType L1GtLogicParser::getOperation(const std::string& tokenString,
                                                              OperationType lastOperation,
                                                              TokenRPN& rpnToken) const {
   OperationType actualOperation = OP_OPERAND;  // default value
 
   int i = 0;
 
   while (m_operationRules[i].opType != OP_OPERAND) {
     if (tokenString == m_operationRules[i].opString) {
       actualOperation = (OperationType)m_operationRules[i].opType;
       break;
     }
     i++;
   }
 
   // check if the operation is allowed
   if (m_operationRules[i].forbiddenLastOperation & lastOperation) {
     return OP_INVALID;
   }
 
   //
   if (actualOperation == OP_OPERAND) {
     rpnToken.operand = tokenString;
 
   } else {
     rpnToken.operand = "";
   }
 
   rpnToken.operation = actualOperation;
 
   // else we got a valid operation
   return actualOperation;
 }
 
 /**
  * getRuleFromType Looks for the entry in the operation rules
  *     and returns a reference if it was found
  *
  * @param oType The type of the operation.
  *
  * @return The reference to the entry or 0 if the Rule was not found.
  *
  */
 
 const L1GtLogicParser::OperationRule* L1GtLogicParser::getRuleFromType(OperationType oType) {
   int i = 0;
 
   while ((m_operationRules[i].opType != oType) && (m_operationRules[i].opType != OP_NULL)) {
     i++;
   }
 
   if (m_operationRules[i].opType == OP_NULL) {
     return nullptr;
   }
 
   return &(m_operationRules[i]);
 }
 
 // add spaces before and after parentheses - make separation easier
 void L1GtLogicParser::addBracketSpaces(const std::string& srcExpression, std::string& dstExpression) {
   static const std::string brackets = "()";  // the brackets to be found
 
   dstExpression = srcExpression;  // copy the string
 
   size_t position = 0;
   while ((position = dstExpression.find_first_of(brackets, position)) != std::string::npos) {
     // add space after if none is there
     if (((position + 1) != std::string::npos) && (dstExpression[position + 1] != ' ')) {
       dstExpression.insert(position + 1, " ");
     }
 
     // add space before if none is there
     if ((position != 0) && (dstExpression[position - 1] != ' ')) {
       dstExpression.insert(position, " ");
       position++;
     }
     position++;
   }
 }
 
 // set the logical expression - check for correctness the input string
 bool L1GtLogicParser::setLogicalExpression(const std::string& logicalExpressionVal) {
   // add spaces around brackets
   std::string logicalExpressionBS;
   addBracketSpaces(logicalExpressionVal, logicalExpressionBS);
 
   // trim leading or trailing spaces
   boost::trim(logicalExpressionBS);
 
   clearRpnVector();
 
   if (!buildRpnVector(logicalExpressionBS)) {
     m_logicalExpression = "";
     return false;
   }
 
   m_logicalExpression = logicalExpressionBS;
 
   //LogDebug("L1GtLogicParser")
   //<< "\nL1GtLogicParser::setLogicalExpression - "
   //<< "\nLogical expression = '" << m_logicalExpression << "'\n"
   //<< std::endl;
 
   return true;
 }
 
 // set the numerical expression (the logical expression with each operand
 // replaced with the value) from a string
 // check also for correctness the input string
 bool L1GtLogicParser::setNumericalExpression(const std::string& numericalExpressionVal) {
   // add spaces around brackets
   std::string numericalExpressionBS;
   addBracketSpaces(numericalExpressionVal, numericalExpressionBS);
 
   // check for consistency with the logical expression
   // TODO FIXME
 
   // trim leading or trailing spaces
   boost::trim(numericalExpressionBS);
 
   m_numericalExpression = numericalExpressionBS;
 
   //LogDebug("L1GtLogicParser")
   //<< "\nL1GtLogicParser::setNumericalExpression - "
   //<< "\nNumerical Expression = '" << m_numericalExpression << "'\n"
   //<< std::endl;
 
   return true;
 }
 
 // static members
 
 // rules for operations
 // 1st column: operation string
 // 2nd column: operation type
 // 3rd column: forbiddenLastOperation (what operation the operator/operand must not follow)
 const struct L1GtLogicParser::OperationRule L1GtLogicParser::m_operationRules[] = {
     {"AND", OP_AND, OP_AND | OP_OR | OP_NOT | OP_OPENBRACKET | OP_NULL},
     {"OR", OP_OR, OP_AND | OP_OR | OP_NOT | OP_OPENBRACKET | OP_NULL},
     {"NOT", OP_NOT, OP_OPERAND | OP_CLOSEBRACKET},
     {"(", OP_OPENBRACKET, OP_OPERAND | OP_CLOSEBRACKET},
     {")", OP_CLOSEBRACKET, OP_AND | OP_OR | OP_NOT | OP_OPENBRACKET},
     {nullptr, OP_OPERAND, OP_OPERAND | OP_CLOSEBRACKET},
     {nullptr, OP_NULL, OP_NULL}};

This page was automatically generated by the 2.2.1 LXR engine. The LXR team