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// ************************************************************************************************
//
// BornAgain: simulate and fit reflection and scattering
//
//! @file Base/Axis/Coordinate.cpp
//! @brief Implements class Coordinate.
//!
//! @homepage http://www.bornagainproject.org
//! @license GNU General Public License v3 or higher (see COPYING)
//! @copyright Forschungszentrum Jülich GmbH 2023
//! @authors Scientific Computing Group at MLZ (see CITATION, AUTHORS)
//
// ************************************************************************************************
#include "Base/Axis/Coordinate.h"
#include <cstddef>
#include <stdexcept>
namespace {
//! Parses label of form "name (unit)".
//! Tested by Unit.Base.Coordinate.Label via Coordinate(label) constructor.
std::pair<std::string, std::string> parse_label(const std::string& label)
{
if (label.empty())
return {"", ""};
size_t i = label.size() - 1;
if (label[i] != ')')
return {label, ""};
for (size_t j = i - 1; j < label.size(); --j)
if (label[j] == '(')
for (size_t jj = j; jj < label.size(); --jj)
if (jj == 0 || label[jj - 1] != ' ')
return {label.substr(0, jj), label.substr(j + 1, i - j - 1)};
throw std::runtime_error("Invalid coordinate label '" + label + "'");
}
} // namespace
Coordinate::Coordinate(const std::string& name, const std::string& unit)
: m_name(name)
, m_unit(unit)
{
}
//! Takes label of form "name (unit)".
//! Tested by Unit.Base.Coordinate.Label.
Coordinate::Coordinate(const std::string& label)
: Coordinate(parse_label(label).first, parse_label(label).second)
{
}
std::string Coordinate::label() const
{
return name() + " (" + unit() + ")";
}
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