DDPartSelection.cc

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#include "DetectorDescription/Core/interface/Singleton.h"
#include "DetectorDescription/Core/interface/DDLogicalPart.h"
#include "DetectorDescription/Core/interface/DDName.h"
#include "DetectorDescription/Core/interface/DDPartSelection.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "boost/spirit/include/classic.hpp"

namespace boost { namespace spirit { namespace classic { } } } using namespace boost::spirit::classic;

struct DDSelLevelCollector
{
  std::string namespace_;
  std::string name_;
  int copyNo_;
  bool isCopyNoValid_;
  bool isChild_;
  std::vector<DDPartSelRegExpLevel>* p_;

  std::vector<DDPartSelRegExpLevel>* path(std::vector<DDPartSelRegExpLevel>* p=nullptr) {
    if (p) {
      p_=p; 
      namespace_="";
      name_="";
      copyNo_=0;
      isCopyNoValid_=false;
      isChild_=false;
    }
    return p_;
  }
};

void noNameSpace(char const * /*first*/, char const* /*last*/) {
  DDI::Singleton<DDSelLevelCollector>::instance().namespace_="";
}

/* Functor for the parser; it does not consume memory -
  pointers are only used to store references to memory
  managed elsewhere 
*/
struct DDSelLevelFtor
{
  DDSelLevelFtor() 
    : c_(DDI::Singleton<DDSelLevelCollector>::instance())
  { }
  
  // parser calls this whenever a selection has been parsed ( //ns:nm[cn], /nm, //ns:nm, .... ) 
  void operator() (char const* /*first*/, char const* /*last*/) const {
   if(c_.path()){
    if (c_.isCopyNoValid_ && c_.isChild_) {
      c_.path()->emplace_back(DDPartSelRegExpLevel(c_.namespace_,c_.name_,c_.copyNo_,ddchildposp));
      //edm::LogInfo("DDPartSelection")  << namespace_ << name_ << copyNo_ << ' ' << ddchildposp << std::endl;
    } else
    if (c_.isCopyNoValid_ && !c_.isChild_) {
      c_.path()->emplace_back(DDPartSelRegExpLevel(c_.namespace_,c_.name_,c_.copyNo_,ddanyposp));
      //      edm::LogInfo("DDPartSelection")  << namespace_ << name_ << copyNo_ << ' ' << ddanyposp << std::endl;
    } else
    if (!c_.isCopyNoValid_ && c_.isChild_) {
      c_.path()->emplace_back(DDPartSelRegExpLevel(c_.namespace_,c_.name_,c_.copyNo_,ddchildlogp));
      //      edm::LogInfo("DDPartSelection")  << namespace_ << name_ << copyNo_ << ' ' << ddchildlogp << std::endl;
    } else
    if (!c_.isCopyNoValid_ && !c_.isChild_) {
      c_.path()->emplace_back(DDPartSelRegExpLevel(c_.namespace_,c_.name_,c_.copyNo_,ddanylogp));
      //      edm::LogInfo("DDPartSelection")  << namespace_ << name_ << copyNo_ << ' ' << ddanylogp << std::endl;
    } 
    c_.namespace_="";
    c_.name_="";
    c_.isCopyNoValid_=false;   
   } 
  }
     
  DDSelLevelCollector & c_;    
};

struct DDIsChildFtor
{
  
  void operator()(char const* first, char const* last) const {
   DDSelLevelCollector & sl = DDI::Singleton<DDSelLevelCollector>::instance();
   if ( (last-first) > 1) 
     sl.isChild_=false;
   if ( (last-first) ==1 )
     sl.isChild_=true;
   //edm::LogInfo("DDPartSelection")  << "DDIsChildFtor  isChild=" << (last-first) << std::endl;
  }
 
};


struct DDNameSpaceFtor
{
  
  void operator()(char const* first, char const* last) const {
    DDSelLevelCollector & sl = DDI::Singleton<DDSelLevelCollector>::instance();  
    sl.namespace_.assign(first,last);
    // edm::LogInfo("DDPartSelection")  << "DDNameSpaceFtor singletonname=" << DDI::Singleton<DDSelLevelCollector>::instance().namespace_ << std::endl;
  }
  
  DDSelLevelFtor* selLevelFtor_;
};


struct DDNameFtor
{
 
  void operator()(char const* first, char const* last) const {
    DDSelLevelCollector & sl = DDI::Singleton<DDSelLevelCollector>::instance();
    sl.name_.assign(first,last);  
    // edm::LogInfo("DDPartSelection")  << "DDNameFtor singletonname=" << Singleton<DDSelLevelCollector>::instance().name_ << std::endl;
  }
  
};


struct DDCopyNoFtor
{
  
  void operator()(int i) const {
    DDSelLevelCollector & sl = DDI::Singleton<DDSelLevelCollector>::instance();  
    sl.copyNo_ = i;
    sl.isCopyNoValid_ = true;
    // edm::LogInfo("DDPartSelection")  << "DDCopyNoFtor ns=" << i;
  }
 
};

struct SpecParParser : public grammar<SpecParParser>
{
  template <typename ScannerT>
  struct definition
  {
    definition(SpecParParser const& /*self*/) {
         
        Selection  //= FirstStep[selLevelFtor()] 
                  //>> *SelectionStep[selLevelFtor()]
           = +SelectionStep[selLevelFtor()]
                   ;

        FirstStep  = Descendant 
                  >> Part
                   ; 

        Part       = PartNameCopyNumber 
                   | PartName
                   ;

        PartNameCopyNumber = PartName 
                  >> CopyNumber
                   ;

        SelectionStep = NavigationalElement[isChildFtor()] 
                  >> Part
                   ;

        NavigationalElement = Descendant 
                   | Child
                   ;

        CopyNumber = ch_p('[') 
                  >> int_p[copyNoFtor()] 
                  >> ch_p(']')
                   ;

        PartName   = NameSpaceName 
                   | SimpleName[nameFtor()][&noNameSpace]
                   ;

    SimpleName = +( alnum_p | ch_p('_') | ch_p('.') | ch_p('*') )
                   ;

        NameSpaceName = SimpleName[nameSpaceFtor()] 
                  >> ':' 
                  >> SimpleName[nameFtor()]
                   ;

        Descendant = ch_p('/') 
                  >> ch_p('/')
                   ;

        Child      = ch_p('/')
                ;
  
         }
  
    rule<ScannerT> Selection, FirstStep, Part, SelectionStep, NavigationalElement,
        CopyNumber, PartName, PartNameCopyNumber, NameSpaceName, SimpleName, 
        Descendant, Child; 

    rule<ScannerT> const& start() const { return Selection; }
    
    DDSelLevelFtor & selLevelFtor() {
      return DDI::Singleton<DDSelLevelFtor>::instance();
    }
    
    DDNameFtor & nameFtor() {
     static DDNameFtor f_;
     return f_;
    }
    
    DDNameSpaceFtor & nameSpaceFtor() {
     static DDNameSpaceFtor f_;
     return f_;
    }
    
    DDIsChildFtor & isChildFtor() {
     static DDIsChildFtor f_;
     return f_;
    }

    DDCopyNoFtor & copyNoFtor() {
     static DDCopyNoFtor f_;
     return f_;
    }    
  };
  
};

DDPartSelectionLevel::DDPartSelectionLevel(const DDLogicalPart & lp, int c, ddselection_type t)
 : lp_(lp), copyno_(c), selectionType_(t)
{}

void DDTokenize2(const std::string & sel, std::vector<DDPartSelRegExpLevel> & path)
{
  static SpecParParser parser;
  DDI::Singleton<DDSelLevelCollector>::instance().path(&path);
  bool result = parse(sel.c_str(), parser).full;
  if (!result) {
    edm::LogError("DDPartSelection") << "DDTokenize2() error in parsing of " << sel << std::endl;
  }
}

std::ostream & operator<<(std::ostream & o, const DDPartSelection & p)
{
  DDPartSelection::const_iterator it(p.begin()), ed(p.end());
  for (; it != ed; ++it) {
    const DDPartSelectionLevel lv  =*it;
    switch (lv.selectionType_) {
    case ddanylogp:
      o << "//" << lv.lp_.ddname();
      break;
    case ddanyposp:
      o << "//" << lv.lp_.ddname() << '[' << lv.copyno_ << ']';
      break;
    case ddchildlogp:
      o << "/" << lv.lp_.ddname();
      break;
    case ddchildposp:
      o << "/" << lv.lp_.ddname() << '[' << lv.copyno_ << ']';
      break;
    default:
      o << "{Syntax ERROR}";
    }
  }
  return o;
}

std::ostream & operator<<(std::ostream & os, const std::vector<DDPartSelection> & v)
{
  std::vector<DDPartSelection>::const_iterator it(v.begin()), ed(v.end());
  for (; it != (ed-1); ++it) {
    os << *it << std::endl;
  }
  if ( it != ed ) {
    ++it;
    os << *it;
  }
  return os;
}

// explicit template instantiation.

template class DDI::Singleton<DDSelLevelFtor>;
//template class DDI::Singleton<DDI::Store<DDName, DDSelLevelCollector> >;
template class DDI::Singleton<DDSelLevelCollector>;
#include <DetectorDescription/Core/interface/Singleton.icc>