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/*
Copyright 2020 Constantine Chen @csc027
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 "csc027.h"
// Declare the strings in PROGMEM using the convenience macro
CUSTOM_MACROS(CUSTOM_DEF, CUSTOM_MACRO_STRING, SEMI_DELIM);
static const char* const custom_macros[] PROGMEM = {
// Declare the pointer to the strings in PROGMEM
CUSTOM_MACROS(CUSTOM_VAR, DROP, COMMA_DELIM)
};
bool process_record_user(uint16_t keycode, keyrecord_t *record) {
switch(keycode) {
case LOWER:
if(record->event.pressed) {
layer_on(_LW);
} else {
layer_off(_LW);
}
update_tri_layer(_LW, _RS, _MS);
return false;
case RAISE:
if(record->event.pressed) {
layer_on(_RS);
} else {
layer_off(_RS);
}
update_tri_layer(_LW, _RS, _MS);
return false;
case (MC_first + 1)...(MC_last - 1):
if(record->event.pressed) {
send_string_P(
#if defined(__AVR__)
// The accessor here first reads from the pointer array that is located
// in PROGMEM. The pointer is taken and passed to the send_string_P
// function, which is aware of the difference between RAM and PROGMEM
// pointers.
(char*)pgm_read_word(&custom_macros[keycode - MC_first - 1])
#else
// For non-AVR MCUs, the PROGMEM macro is defined as nothing. So, the strings are
// declared in RAM instead of flash. The send_string_P function, when compiled for
// non-AVR targets, uses a different definition of pgm_read_byte internally. This
// definition uses RAM pointers instead. This is why the raw pointer is passed for
// non-AVR MCUs.
custom_macros[keycode - MC_first - 1]
#endif
);
return true;
}
return false;
default:
return true;
}
}
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