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/*
Author: Shane Neph & Scott Kuehn
Date: Dec. 7, 2009
*/
//
// BEDOPS
// Copyright (C) 2011-2022 Shane Neph, Scott Kuehn and Alex Reynolds
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
#ifndef _VISITOR_POST_PROCESSING_
#define _VISITOR_POST_PROCESSING_
#include <iostream>
#include <ostream>
#include <string>
#include "data/measurement/NaN.hpp"
#include "utility/PrintTypes.hpp"
namespace Visitors {
namespace Helpers {
//=============
// DoNothing()
//=============
struct DoNothing {
void operator()(...) const { /* */ }
};
//======
// Keep
//======
template <typename ValueType>
struct Keep {
Keep() : isNan_(false), value_(0)
{ }
template <typename T>
void operator()(T* t) {
value_ = static_cast<ValueType>(*t);
isNan_ = false;
}
template <typename T>
void operator()(const T& t) {
value_ = static_cast<ValueType>(t);
isNan_ = false;
}
void operator()(const Signal::NaN&) {
isNan_ = true;
}
bool isNan_;
ValueType value_;
};
//=========
// Print()
//=========
struct Print {
template <typename T>
void operator()(T* t) const {
PrintTypes::Print(*t);
}
template <typename T>
void operator()(const T& t) const {
PrintTypes::Print(t);
}
};
//===========
// Println()
//===========
struct Println {
template <typename T>
void operator()(T* t) const {
PrintTypes::Println(*t);
}
template <typename T>
void operator()(const T& t) const {
PrintTypes::Println(t);
}
};
//============
// PrintDelim
//============
struct PrintDelim {
explicit PrintDelim(const std::string& delim = "|")
: delim_(delim), isChar_(false) {
bool isaTab = (delim == "\t" || delim == "\\t" || delim == "'\t'");
bool isaNewline = (delim == "\n" || delim == "\\n" || delim == "'\n'");
if ( isaTab ) {
delim_ = "";
delim_ += '\t';
isChar_ = true;
}
else if ( isaNewline ) {
delim_ = "";
delim_ += '\n';
isChar_ = true;
} else if ( 1 == delim.size() ) {
delim_ = "";
delim_ += delim[0];
isChar_ = true;
}
}
explicit PrintDelim(char t) : delim_(""), isChar_(true) {
delim_ += t;
}
void operator()() const {
if ( isChar_ )
PrintTypes::Print(delim_[0]);
else
PrintTypes::Print(delim_.c_str());
}
private:
std::string delim_;
bool isChar_;
};
//==================
// PrintRangeDelim()
//===================
template <typename PrintType>
struct PrintRangeDelim : private PrintDelim {
typedef PrintDelim Base;
typedef PrintType PType;
explicit PrintRangeDelim(const PrintType& p = PrintType(),
const std::string& delim = ";",
const std::string& onEmpty = "")
: Base(delim), pt_(p), oe_(onEmpty)
{ /* */ }
template <typename Iter>
void operator()(Iter beg, Iter end) const {
if ( beg == end ) {
if ( !oe_.empty() )
PrintTypes::Print(oe_.c_str());
return;
}
pt_.operator()(*beg);
while ( ++beg != end ) {
Base::operator()();
pt_.operator()(*beg);
} // while
}
private:
PrintType pt_;
std::string oe_;
};
} // namespace Helpers
} // namespace Visitors
#endif // _VISITOR_POST_PROCESSING_
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