elementname.h

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/*
 * LibrePCB - Professional EDA for everyone!
 * Copyright (C) 2013 LibrePCB Developers, see AUTHORS.md for contributors.
 * https://librepcb.org/
 *
 * 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 3 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, see <http://www.gnu.org/licenses/>.
 */

#ifndef LIBREPCB_ELEMENTNAME_H
#define LIBREPCB_ELEMENTNAME_H

/*******************************************************************************
 *  Includes
 ******************************************************************************/
#include "fileio/sexpression.h"
#include "toolbox.h"

#include <type_safe/constrained_type.hpp>

#include <QtCore>

/*******************************************************************************
 *  Namespace / Forward Declarations
 ******************************************************************************/
namespace librepcb {

/*******************************************************************************
 *  Class ElementName
 ******************************************************************************/

inline static QString cleanElementName(const QString& userInput) noexcept {
  QString ret = userInput.trimmed();
  for (int i = ret.length() - 1; i >= 0; --i) {
    if (!ret[i].isPrint()) {
      ret.remove(i, 1);
    }
  }
  ret.truncate(70);
  return ret;
}

struct ElementNameVerifier {
  template <typename Value, typename Predicate>
  static constexpr auto verify(Value&& val, const Predicate& p) ->
      typename std::decay<Value>::type {
    return p(val) ? std::forward<Value>(val)
                  : (throw RuntimeError(
                         __FILE__, __LINE__,
                         QString(QApplication::translate("ElementName",
                                                         "Invalid name: '%1'"))
                             .arg(val)),
                     std::forward<Value>(val));
  }
};

struct ElementNameConstraint {
  bool operator()(const QString& value) const noexcept {
    if (value.isEmpty()) return false;
    if (value.length() > 70) return false;
    if (value != value.trimmed()) return false;
    foreach (const QChar& c, value) {
      if (!c.isPrint()) return false;
    }
    return true;
  }
};

using ElementName = type_safe::constrained_type<QString, ElementNameConstraint,
                                                ElementNameVerifier>;

inline bool operator==(const ElementName& lhs, const QString& rhs) noexcept {
  return (*lhs) == rhs;
}
inline bool operator==(const QString& lhs, const ElementName& rhs) noexcept {
  return lhs == (*rhs);
}
inline bool operator!=(const ElementName& lhs, const QString& rhs) noexcept {
  return (*lhs) != rhs;
}
inline bool operator!=(const QString& lhs, const ElementName& rhs) noexcept {
  return lhs != (*rhs);
}
inline QString operator%(const ElementName& lhs, const QString& rhs) noexcept {
  return (*lhs) % rhs;
}
inline QString operator%(const QString& lhs, const ElementName& rhs) noexcept {
  return lhs % (*rhs);
}
inline ElementName operator%(const ElementName& lhs,
                             const ElementName& rhs) noexcept {
  return ElementName((*lhs) % (*rhs));  // always safe, will not throw
}

template <>
inline SExpression serializeToSExpression(const ElementName& obj) {
  return SExpression::createString(*obj);
}

template <>
inline ElementName deserializeFromSExpression(const SExpression& sexpr,
                                              bool               throwIfEmpty) {
  QString str = sexpr.getStringOrToken(throwIfEmpty);
  // backward compatibility - remove this some time!
  str = str.trimmed();
  str.truncate(70);
  return ElementName(str);  // can throw
}

inline QDataStream& operator<<(QDataStream& stream, const ElementName& obj) {
  stream << *obj;
  return stream;
}

inline QDebug operator<<(QDebug stream, const ElementName& obj) {
  stream << QString("ElementName('%1'')").arg(*obj);
  return stream;
}

inline uint qHash(const ElementName& key, uint seed = 0) noexcept {
  return ::qHash(*key, seed);
}

/*******************************************************************************
 *  End of File
 ******************************************************************************/

}  // namespace librepcb

#endif  // LIBREPCB_ELEMENTNAME_H