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// -*- C++ -*-
//
// Package: CandCombiner
// Class : decayParser
//
// Implementation:
// <Notes on implementation>
//
// Original Author:
// Created: Sun Aug 7 20:26:31 EDT 2005
// $Id: decayParser.cc,v 1.1 2009/03/03 13:50:55 llista Exp $
//
#include "CommonTools/CandAlgos/interface/decayParser.h"
#include <boost/spirit/include/classic_core.hpp>
#include <boost/spirit/include/classic_push_back_actor.hpp>
#include <vector>
using namespace boost::spirit;
using namespace std;
using namespace boost::spirit::classic;
namespace cand {
namespace parser {
class ModeSetter {
public:
ModeSetter(vector<ConjInfo>& iVect, ConjInfo::Mode iMode) : conjInfo_(iVect), mode_(iMode) {}
void operator()(const char) const { conjInfo_.back().mode_ = mode_; }
private:
vector<ConjInfo>& conjInfo_;
ConjInfo::Mode mode_;
};
typedef scanner_policies<skip_parser_iteration_policy<nothing_parser, iteration_policy>, match_policy, action_policy>
ScannerPolicy;
typedef scanner<const char*, ScannerPolicy> ScannerUsed_1;
typedef rule<ScannerUsed_1> Rule_1;
bool decayParser(const string& iValue, vector<ConjInfo>& oStrings) {
using namespace boost::spirit;
Rule_1 label = ((+alnum_p) >> *ch_p(':') >> *ch_p('_') >> *alnum_p)[push_back_a(oStrings)];
Rule_1 conj = (ch_p('@') >> !((ch_p('b') >> ch_p('a') >> ch_p('r')[ModeSetter(oStrings, ConjInfo::kBar)]) |
ch_p('+')[ModeSetter(oStrings, ConjInfo::kPlus)] |
ch_p('-')[ModeSetter(oStrings, ConjInfo::kMinus)]));
return parse(iValue.c_str(), ((label >> !conj) % blank_p), nothing_p).full;
}
} // namespace parser
} // namespace cand
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