#include <ClhepEvaluator.h>

Public Member Functions
void	clear ()

	ClhepEvaluator ()

double	eval (const std::string &ns, const std::string &expr)

double	eval (const char *expression)
	evaluations using directly the CLHEP-evaluator More...

bool	isDefined (const std::string &ns, const std::string &name)

void	set (const std::string &ns, const std::string &name, const std::string &exprValue)

void	set (const std::string &name, const std::string &value)
	filling the clhep-implementation of the dictionary More...

const std::vector< std::string > &	values () const

const std::vector< std::string > &	variables () const
	access to the clhep-implementation of the dictionary variables More...

	~ClhepEvaluator ()

Private Member Functions
void	checkname (const std::string &name) const

void	prepare (const std::string &ns, const std::string &name, const std::string &exprValue, std::string &nameResult, std::string &valResult) const

void	throwex (const std::string &ns, const std::string &name, const std::string &expr, const std::string &reason, int idx=0) const

Private Attributes
HepTool::Evaluator	evaluator_

std::vector< std::string >	values_

std::vector< std::string >	variables_

Detailed Description

Definition at line 10 of file ClhepEvaluator.h.

Constructor & Destructor Documentation

ClhepEvaluator::ClhepEvaluator ( )

Definition at line 11 of file ClhepEvaluator.cc.

References MillePedeFileConverter_cfg::e, and evaluator_.

 { 
   // enable standard mathematical funtions
   evaluator_.setStdMath();
   
   // set Geant4 compatible units
   evaluator_.setSystemOfUnits(1.e+3, 1./1.60217733e-25, 1.e+9, 1./1.60217733e-10,
                   1.0, 1.0, 1.0);
    
   // set some global vars, which are in fact known by Clhep::SystemOfUnits
   // but are NOT set in CLHEP::Evaluator ...
   evaluator_.setVariable("mum","1.e-3*mm");
   evaluator_.setVariable("fm","1.e-15*meter");
 }

ClhepEvaluator::~ClhepEvaluator ( )

Definition at line 26 of file ClhepEvaluator.cc.

References clear().

 { 
   clear();
 }

Member Function Documentation

void ClhepEvaluator::checkname ( const std::string & name ) const

private

Definition at line 277 of file ClhepEvaluator.cc.

References MillePedeFileConverter_cfg::e, Exception, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by set(), and values().

 {
   // '['   ']'   ' '  ':'   are forbidden for names and namespaces of parameters
   std::string::size_type sz = s.size();
   while(sz) 
   {
     --sz;
     //bool stop = false;
     switch (s[sz]) 
     {
     case ']':
     case '[':
     case ' ':
     case ':':
     case '\n':
     case '\t':
       // case '.':
     case '&':
     case '*':
     case '+':
     case '-':
     case '/':
     case '^':
       std::string e = std::string("ClhepEvaluator ERROR: forbidden character '")
       + s[sz] + std::string("' found in '") + s + std::string("' !");
     throw cms::Exception("DDException") << e;         
     break;  
     }
   }
 }

void ClhepEvaluator::clear ( void )

Definition at line 146 of file ClhepEvaluator.cc.

References evaluator_, values_, and variables_.

Referenced by Vispa.Views.WidgetView.WidgetView::closeEvent(), Vispa.Views.BoxDecayView.BoxDecayView::closeEvent(), Vispa.Share.FindAlgorithm.FindAlgorithm::findUsingFindDialog(), Vispa.Views.LineDecayView.LineDecayView::setDataObjects(), Vispa.Views.WidgetView.WidgetView::setDataObjects(), BeautifulSoup.Tag::setString(), Vispa.Views.TreeView.TreeView::updateContent(), Vispa.Views.TableView.TableView::updateContent(), Vispa.Views.BoxDecayView.BoxDecayView::updateContent(), Vispa.Views.PropertyView.PropertyView::updateContent(), values(), and ~ClhepEvaluator().

 {
   // clear the dictionary
   evaluator_.clear();
   
   // clear the cache of values & variable-names   
   variables_.clear();
   values_.clear();
 }

double ClhepEvaluator::eval	(	const std::string &	ns,
		const std::string &	expr
	)

Definition at line 98 of file ClhepEvaluator.cc.

References gather_cfg::cout, evaluator_, mps_fire::i, prepare(), mps_fire::result, AlCaHLTBitMon_QueryRunRegistry::string, and throwex().

 {   
   // eval does not store std::strings in the values_!
   // eval throws if it can't evaluate!
   std::string pseudo("(evaluating)");
   std::string prepared;
   
   prepare(ns,pseudo,expr, pseudo,prepared);
   
   double result = evaluator_.evaluate(prepared.c_str());
   if(evaluator_.status()!=HepTool::Evaluator::OK) {
     std::cout << "expr: " << prepared << std::endl;
     std::cout << "------";
     for (int i=0; i<evaluator_.error_position(); ++i) std::cout << "-";
     std::cout << "^" << std::endl;
     evaluator_.print_error();
     throwex(ns,prepared,expr,"can't evaluate: " + expr + std::string("!"));
   }
   
   return result;
 }

double ClhepEvaluator::eval ( const char * expression )

evaluations using directly the CLHEP-evaluator

expression must be an expression compatible with the CLHEP-Evaluator syntax

Definition at line 121 of file ClhepEvaluator.cc.

References gather_cfg::cout, evaluator_, mps_fire::i, mps_fire::result, AlCaHLTBitMon_QueryRunRegistry::string, and throwex().

 {
   double result = evaluator_.evaluate(expression);
   if (evaluator_.status()!=HepTool::Evaluator::OK) {
     std::cout << "expr: " << expression << std::endl;
     std::cout << "------";
     for (int i=0; i<evaluator_.error_position(); ++i) std::cout << "-";
     std::cout << "^" << std::endl;
     evaluator_.print_error();
     throwex("",expression,"","can't evaluate: " + std::string(expression) + std::string("!"));   
   }
   return result;
 }

bool ClhepEvaluator::isDefined	(	const std::string &	ns,
		const std::string &	name
	)

Definition at line 136 of file ClhepEvaluator.cc.

References evaluator_, prepare(), and AlCaHLTBitMon_QueryRunRegistry::string.

 {
   std::string newVar; 
   std::string newVal;
   prepare(ns,name,"0", newVar,newVal);
   return evaluator_.findVariable(newVar.c_str());
 }        

void ClhepEvaluator::prepare	(	const std::string &	ns,
		const std::string &	name,
		const std::string &	exprValue,
		std::string &	nameResult,
		std::string &	valResult
	)		const

private

Definition at line 157 of file ClhepEvaluator.cc.

References training_settings::idx, dataset::name, AlCaHLTBitMon_QueryRunRegistry::string, groupFilesInBlocks::temp, and throwex().

Referenced by eval(), isDefined(), set(), and values().

 {
   static const std::string sep("___"); // separator between ns and name
   // SOME SPAGHETTI CODE ...
   //  break it down into some addional member functions ... 
   
   // the name and namespaces are not checked for 'forbidden' symbols like [,],: ...
   nameResult = ns + sep + name;
   
   // scan the expression std::string and remove [ ], and insert the current namespace if it's missing
   std::string temp;
   
   // 2 pass for simplicity (which is NOT efficient ...)
   // pass 1: find variables without namespace, e.g. [abcd], and mark them
   // pass 2: remove [ ] & ( exchange ':' with '_' | add the namespace at marked variables )
   
   std::string::size_type sz = exprValue.size();
   std::string::size_type idx =0;
   bool insideBracket = false;
   bool nsFound = false;
   int varCount=0; // count the variables from 1,2,3,...
   std::vector<int> hasNs(1); // marked[i]=1 ... variable number i has a namespace attached with ':'
   
   while(idx<sz) 
   {
     switch(exprValue[idx]) 
     {
     case '[':     
       if (nsFound || insideBracket) 
       { // oops, something went wrong. simply throw!
     throwex(ns,name,exprValue,
         "found a ':' outside '[..]' , or too many '[' !",idx); 
       }
       insideBracket=true; 
       ++varCount;
       break;
     case ']':
       if (!insideBracket) 
       {
     throwex(ns,name,exprValue,"too many ']' !",idx);
       }
       insideBracket=false;  
       if (nsFound) 
       {
     nsFound=false; // reset
     hasNs.emplace_back(1);
       }
       else 
       {
     hasNs.emplace_back(0);   
       } 
       break;
     case ':':
       if ( (!insideBracket) || nsFound ) 
       { // oops, a namespace outside [] or a 2nd ':' inside []! !
     throwex(ns,name,exprValue,
         "found a ':' outside '[..]' , or multiple ':' inside '[..]'",idx);
       }          
       nsFound=true;
       break;
     default:
       ;
     } // switch
     ++idx;
   } // while(sz)
   
   // status after pass 1 must be: every [ ] is closed and no ':' 
   if ( insideBracket || nsFound ) {
     throwex(ns,name,exprValue,
         "'[..]' not closed , or ':' outside of '[..]'",idx);
   }
   
   // Pass 2: now remove all '[' ']', replace ':' or add 'ns' + '_'
   //sz = exprValue.size();
   idx=0;
   varCount=0;
   //bool ommit = false;
   while (idx<sz) 
   {
     switch(exprValue[idx]) 
     {
     case '[':
       ++varCount;
       if ( !hasNs[varCount] ) 
       {
     valResult = valResult + ns + sep;
       }  
       break;
     case ']':
       break;
     case ':':
       valResult = valResult + sep;
       break;
     default:
       valResult = valResult + exprValue[idx];
     } // switch
     ++idx;
   } // while 
 }          

void ClhepEvaluator::set	(	const std::string &	ns,
		const std::string &	name,
		const std::string &	exprValue
	)

Definition at line 50 of file ClhepEvaluator.cc.

References checkname(), gather_cfg::cout, dd_exchange_value(), evaluator_, prepare(), AlCaHLTBitMon_QueryRunRegistry::string, throwex(), values_, and variables_.

Referenced by regressionTest_setup(), and DDLSAX2ExpressionHandler::startElement().

 {
   checkname(ns); // fancy characters in ns or name ??
   checkname(name);
   std::string newVar;
   std::string newVal;
   prepare(ns,name,exprValue,newVar,newVal);
   evaluator_.setVariable(newVar.c_str(), newVal.c_str());
   switch(evaluator_.status()) {
   case HepTool::Evaluator::WARNING_EXISTING_VARIABLE:
     dd_exchange_value(variables_,values_,newVar,newVal);
     break;
   case HepTool::Evaluator::OK:
   case HepTool::Evaluator::WARNING_EXISTING_FUNCTION:
   case HepTool::Evaluator::WARNING_BLANK_STRING:
     variables_.emplace_back(newVar);
     values_.emplace_back(newVal);
     break;
   default:
     std::cout << "set-var: ns=" << ns << " nm=" << name << " val=" << exprValue << std::endl;
     evaluator_.print_error();
     throwex(ns,name,exprValue,"can't set parameter !");
   }
 }

void ClhepEvaluator::set	(	const std::string &	name,
		const std::string &	value
	)

filling the clhep-implementation of the dictionary

Definition at line 77 of file ClhepEvaluator.cc.

References gather_cfg::cout, dd_exchange_value(), evaluator_, throwex(), values_, and variables_.

 {
   evaluator_.setVariable(n.c_str(),v.c_str());
   switch(evaluator_.status()) {
   case HepTool::Evaluator::WARNING_EXISTING_VARIABLE:
     dd_exchange_value(variables_,values_,n,v);
     break;
   case HepTool::Evaluator::OK:
   case HepTool::Evaluator::WARNING_EXISTING_FUNCTION:
   case HepTool::Evaluator::WARNING_BLANK_STRING:
     variables_.emplace_back(n);
     values_.emplace_back(v);
     break;
   default:
     std::cout << "set-varname=" << n << " val=" << v << std::endl;
     evaluator_.print_error();
     throwex("",n,v,"can't set parameter !");
   }  
 }

void ClhepEvaluator::throwex	(	const std::string &	ns,
		const std::string &	name,
		const std::string &	expr,
		const std::string &	reason,
		int	idx = `0`
	)		const

private

Definition at line 262 of file ClhepEvaluator.cc.

References Exception, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by eval(), prepare(), set(), and values().

 {
   std::string er = std::string("ClhepEvaluator ERROR: ") + reason + std::string("\n")
     + std::string(" nmspace=") + ns 
     + std::string("\n varname=") + name
     + std::string("\n exp=") + expr
     + std::string("\n  at=") + expr.substr(0,idx);
   throw cms::Exception("DDException") << er;
 }                 