CaseConversion.hpp

/*
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 *
 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your
 * research, please cite the appropriate papers when you publish your
 * work.  Good starting points are:
 *
 * [1] Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).
 * [2] Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).
 * [3] Sun, Lin & Gezelter, J. Chem. Phys. 128, 234107 (2008).
 * [4] Vardeman, Stocker & Gezelter, J. Chem. Theory Comput. 7, 834 (2011).
 * [5] Kuang & Gezelter, Mol. Phys., 110, 691-701 (2012).
 * [6] Lamichhane, Gezelter & Newman, J. Chem. Phys. 141, 134109 (2014).
 * [7] Lamichhane, Newman & Gezelter, J. Chem. Phys. 141, 134110 (2014).
 * [8] Bhattarai, Newman & Gezelter, Phys. Rev. B 99, 094106 (2019).
 */
 
#ifndef UTILS_CASECONVERSION_HPP
#define UTILS_CASECONVERSION_HPP
 
#include <algorithm>
#include <cctype>
#include <locale>
 
namespace OpenMD {
 
  template<typename Container>
  void toLower(Container& cont, const std::locale& loc = std::locale()) {
    std::transform(cont.begin(), cont.end(), cont.begin(),
                   [&loc](char c) { return std::tolower(c, loc); });
  }
 
  template<typename Container>
  Container toLowerCopy(const Container& cont,
                        const std::locale& = std::locale()) {
    Container result {cont};
    toLower(result);
 
    return result;
  }
 
  template<typename Container>
  void toUpper(Container& cont, const std::locale& loc = std::locale()) {
    std::transform(cont.begin(), cont.end(), cont.begin(),
                   [&loc](char c) { return std::toupper(c, loc); });
  }
 
  template<typename Container>
  Container toUpperCopy(const Container& cont,
                        const std::locale& = std::locale()) {
    Container result {cont};
    toUpper(result);
 
    return result;
  }
}  // namespace OpenMD
 
#endif