liveMedia/Locale.cpp

/**********
This library is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the
Free Software Foundation; either version 3 of the License, or (at your
option) any later version. (See <http://www.gnu.org/copyleft/lesser.html>.)

This library 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 Lesser General Public License for
more details.

You should have received a copy of the GNU Lesser General Public License
along with this library; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
**********/
// "liveMedia"
// Copyright (c) 1996-2020 Live Networks, Inc.  All rights reserved.
// Support for temporarily setting the locale (e.g., to "C" or "POSIX") for (e.g.) parsing or printing
// floating-point numbers in protocol headers, or calling toupper()/tolower() on human-input strings.
// Implementation

#include "Locale.hh"
#include <strDup.hh>

Locale::Locale(char const* newLocale, LocaleCategory category) {
#ifndef LOCALE_NOT_USED
#ifndef NEWLOCALE_NOT_USED
  int categoryMask;
  switch (category) {
    case All: { categoryMask = LC_ALL_MASK; break; }
    case Numeric: { categoryMask = LC_NUMERIC_MASK; break; }
  }
  fLocale = newlocale(categoryMask, newLocale, NULL);
  fPrevLocale = uselocale(fLocale);
#else
  switch (category) {
    case All: { fCategoryNum = LC_ALL; break; }
    case Numeric: { fCategoryNum = LC_NUMERIC; break; }
  }
  fPrevLocale = strDup(setlocale(fCategoryNum, NULL));
  setlocale(fCategoryNum, newLocale);
#endif
#endif
}

Locale::~Locale() {
#ifndef LOCALE_NOT_USED
#ifndef NEWLOCALE_NOT_USED
  if (fLocale != (locale_t)0) {
    uselocale(fPrevLocale);
    freelocale(fLocale);
  }
#else
  if (fPrevLocale != NULL) {
    setlocale(fCategoryNum, fPrevLocale);
    delete[] fPrevLocale;
  }
#endif
#endif
}