Parameters.cc
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Parameters.cc
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	/**
	* \authors The HEJ collaboration (see AUTHORS for details)
	* \date 2019-2020
	* \copyright GPLv2 or later
	*/
	#include "HEJ/Parameters.hh"

	#include <iostream>
	#include <sstream>

	namespace HEJ {

	namespace {
	void replace(
	std::string & str,
	char to_replace, std::string const & replacement
	) {
	for( auto pos = str.find(to_replace); pos != std::string::npos;
	pos = str.find(to_replace, pos)
	){
	str.replace(pos, 1, replacement);
	pos += replacement.size();
	}
	}

	// remove "special" characters from scale name
	// so that we can more easily use it as part of a file name
	std::string sanitise_scalename(std::string scalename) {
	replace(scalename, '/', "_over_");
	replace(scalename, '*', "_times_");
	replace(scalename, ' ', "_");
	return scalename;
	}
	} // namespace

	std::string to_string(ParameterDescription const & p) {
	// use ostringstream over std::to_string to remove trailing 0s
	std::ostringstream stream;
	stream << "\\mu_r = ";
	if(p.mur_factor != 1.) stream << p.mur_factor << '*';
	stream << p.scale_name << ", "
	"\\mu_f = ";
	if(p.muf_factor != 1.) stream << p.muf_factor << '*';
	stream << p.scale_name;
	return stream.str();
	}

	std::string to_simple_string(ParameterDescription const & p) {
	// use ostringstream over std::to_string to remove trailing 0s
	std::ostringstream stream;
	stream << "Scale_" << sanitise_scalename(p.scale_name)
	<< "_MuR" << p.mur_factor << "_MuF" << p.muf_factor;
	return stream.str();
	}

	} // namespace HEJ