qmk_firmware/users/ericgebhart/lang/locales.h

#pragma once
/*
  Copyright 2022 Eric Gebhart <e.a.gebhart@gmail.com>

  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 2 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/>.
*/

#include "ericgebhart.h"

// Stuff we need for locale and layer switching
// there can be more but we need to know where they start and end.
// remember there's limitations on layers.
// Our locales. so it's easy to switch between them.


const uint16_t base_layer_count = BASE_NAME_COUNT - 1;

const uint16_t locale_layers[][2] = {
  [LOCALE_DEFAULT] =      {0, base_layer_count},
#ifdef SECOND_LOCALE
  [LOCALE_TWO] =    {BASE_NAME_COUNT, BASE_NAME_COUNT + base_layer_count},
#endif
};

uint32_t current_locale = LOCALE_DEFAULT;
#define LOCALE_LAYER_RANGE locale_layers[current_locale]

bool process_locales(uint16_t keycode, keyrecord_t *record);

#define PROCESS_LOCALES                                         \
  if (!process_locales(keycode, record)) { return false; }