qmk_firmware/quantum/keymap_unicode.c

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/*
Copyright 2015 Jack Humbert <jack.humb@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 "keymap_common.h"
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uint16_t hextokeycode(int hex) {
if (hex == 0x0) {
return KC_0;
} else if (hex < 0xA) {
return KC_1 + (hex - 0x1);
} else {
return KC_A + (hex - 0xA);
}
}
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void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
{
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// For more info on how this works per OS, see here: https://en.wikipedia.org/wiki/Unicode_input#Hexadecimal_code_input
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if (record->event.pressed) {
uint16_t unicode = (opt << 8) | id;
register_code(KC_LALT);
register_code(hextokeycode((unicode & 0xF000) >> 12));
unregister_code(hextokeycode((unicode & 0xF000) >> 12));
register_code(hextokeycode((unicode & 0x0F00) >> 8));
unregister_code(hextokeycode((unicode & 0x0F00) >> 8));
register_code(hextokeycode((unicode & 0x00F0) >> 4));
unregister_code(hextokeycode((unicode & 0x00F0) >> 4));
register_code(hextokeycode((unicode & 0x000F)));
unregister_code(hextokeycode((unicode & 0x000F)));
/* Test 'a' */
// register_code(hextokeycode(0x0));
// unregister_code(hextokeycode(0x0));
// register_code(hextokeycode(0x0));
// unregister_code(hextokeycode(0x0));
// register_code(hextokeycode(0x6));
// unregister_code(hextokeycode(0x6));
// register_code(hextokeycode(0x1));
// unregister_code(hextokeycode(0x1));
unregister_code(KC_LALT);
}
return;
}