Add Serbian keymaps and sendstring LUT (#8560)

* Add Serbian keymaps and sendstring LUT

* Apply suggestions from code review

Co-Authored-By: Konstantin Đorđević <vomindoraan@gmail.com>

* Fix formatting

Co-authored-by: Konstantin Đorđević <vomindoraan@gmail.com>

1 files changed, 164 insertions, 0 deletions

diff --git a/quantum/keymap_extras/keymap_serbian_latin.h b/quantum/keymap_extras/keymap_serbian_latin.h
new file mode 100644
index 0000000000..363b7fdc1e
--- /dev/null
+++ b/quantum/keymap_extras/keymap_serbian_latin.h
@@ -0,0 +1,164 @@
+/* Copyright 2020
+ *
+ * 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/>.
+ */
+
+#pragma once
+
+#include "keymap.h"
+
+// clang-format off
+
+/*
+ * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
+ * │ ‚ │ 1 │ 2 │ 3 │ 4 │ 5 │ 6 │ 7 │ 8 │ 9 │ 0 │ ' │ + │       │
+ * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
+ * │     │ Q │ W │ E │ R │ T │ Z │ U │ I │ O │ P │ Š │ Đ │     │
+ * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┐    │
+ * │      │ A │ S │ D │ F │ G │ H │ J │ K │ L │ Č │ Ć │ Ž │    │
+ * ├────┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┴────┤
+ * │    │ < │ Y │ X │ C │ V │ B │ N │ M │ , │ . │ - │          │
+ * ├────┼───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴───┼───┴┬────┬────┤
+ * │    │    │    │                        │    │    │    │    │
+ * └────┴────┴────┴────────────────────────┴────┴────┴────┴────┘
+ */
+// Row 1
+#define RS_SLQU KC_GRV  // ‚ (dead)
+#define RS_1    KC_1    // 1
+#define RS_2    KC_2    // 2
+#define RS_3    KC_3    // 3
+#define RS_4    KC_4    // 4
+#define RS_5    KC_5    // 5
+#define RS_6    KC_6    // 6
+#define RS_7    KC_7    // 7
+#define RS_8    KC_8    // 8
+#define RS_9    KC_9    // 9
+#define RS_0    KC_0    // 0
+#define RS_QUOT KC_MINS // '
+#define RS_PLUS KC_EQL  // +
+// Row 2
+#define RS_Q    KC_Q    // Q
+#define RS_W    KC_W    // W
+#define RS_E    KC_E    // E
+#define RS_R    KC_R    // R
+#define RS_T    KC_T    // T
+#define RS_Z    KC_Y    // Z
+#define RS_U    KC_U    // U
+#define RS_I    KC_I    // I
+#define RS_O    KC_O    // O
+#define RS_P    KC_P    // P
+#define RS_SCAR KC_LBRC // Š
+#define RS_DSTR KC_RBRC // Đ
+// Row 3
+#define RS_A    KC_A    // A
+#define RS_S    KC_S    // S
+#define RS_D    KC_D    // D
+#define RS_F    KC_F    // F
+#define RS_G    KC_G    // G
+#define RS_H    KC_H    // H
+#define RS_J    KC_J    // J
+#define RS_K    KC_K    // K
+#define RS_L    KC_L    // L
+#define RS_CCAR KC_SCLN // Č
+#define RS_CACU KC_QUOT // Ć
+#define RS_ZCAR KC_NUHS // Ž
+// Row 4
+#define RS_LABK KC_NUBS // <
+#define RS_Y    KC_Z    // Y
+#define RS_X    KC_X    // X
+#define RS_C    KC_C    // C
+#define RS_V    KC_V    // V
+#define RS_B    KC_B    // B
+#define RS_N    KC_N    // N
+#define RS_M    KC_M    // M
+#define RS_COMM KC_COMM // ,
+#define RS_DOT  KC_DOT  // .
+#define RS_MINS KC_SLSH // -
+
+/* Shifted symbols
+ * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
+ * │ ~ │ ! │ " │ # │ $ │ % │ & │ / │ ( │ ) │ = │ ? │ * │       │
+ * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
+ * │     │   │   │   │   │   │   │   │   │   │   │   │   │     │
+ * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┐    │
+ * │      │   │   │   │   │   │   │   │   │   │   │   │   │    │
+ * ├────┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┴────┤
+ * │    │ > │   │   │   │   │   │   │   │ ; │ : │ _ │          │
+ * ├────┼───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴───┼───┴┬────┬────┤
+ * │    │    │    │                        │    │    │    │    │
+ * └────┴────┴────┴────────────────────────┴────┴────┴────┴────┘
+ */
+// Row 1
+#define RS_TILD S(RS_SLQU) // ~
+#define RS_EXLM S(RS_1)    // !
+#define RS_DQUO S(RS_2)    // "
+#define RS_HASH S(RS_3)    // #
+#define RS_DLR  S(RS_4)    // $
+#define RS_PERC S(RS_5)    // %
+#define RS_AMPR S(RS_6)    // &
+#define RS_SLSH S(RS_7)    // /
+#define RS_LPRN S(RS_8)    // (
+#define RS_RPRN S(RS_9)    // )
+#define RS_EQL  S(RS_0)    // =
+#define RS_DEG  S(RS_QUOT) // ?
+#define RS_UNDS S(RS_PLUS) // *
+// Row 4
+#define RS_RABK S(RS_LABK) // >
+#define RS_SCLN S(RS_COMM) // ;
+#define RS_COLN S(RS_DOT)  // :
+#define RS_UNDS S(RS_MINS) // _
+
+/* AltGr symbols
+ * ┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───────┐
+ * │   │   │ ˇ │ ^ │ ˘ │ ° │ ˛ │ ` │ ˙ │ ´ │ ˝ │ ¨ │ ¸ │       │
+ * ├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─────┤
+ * │     │ \ │ | │ € │   │   │   │   │   │   │   │ ÷ │ × │     │
+ * ├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┐    │
+ * │      │   │   │   │ [ │ ] │   │   │ ł │ Ł │   │ ß │ ¤ │    │
+ * ├────┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┴────┤
+ * │    │   │   │   │   │ @ │ { │ } │ § │   │   │   │          │
+ * ├────┼───┴┬──┴─┬─┴───┴───┴───┴───┴───┴──┬┴───┼───┴┬────┬────┤
+ * │    │    │    │                        │    │    │    │    │
+ * └────┴────┴────┴────────────────────────┴────┴────┴────┴────┘
+ */
+// Row 1
+#define RS_CARN ALGR(RS_2)    // ˇ (dead)
+#define RS_CIRC ALGR(RS_3)    // ^ (dead)
+#define RS_BREV ALGR(RS_4)    // ˘ (dead)
+#define RS_RNGA ALGR(RS_5)    // ° (dead)
+#define RS_OGON ALGR(RS_6)    // ˛ (dead)
+#define RS_GRV  ALGR(RS_7)    // `
+#define RS_DOTA ALGR(RS_8)    // ˙ (dead)
+#define RS_ACUT ALGR(RS_9)    // ´ (dead)
+#define RS_DACU ALGR(RS_0)    // ˝ (dead)
+#define RS_DIAE ALGR(RS_QUOT) // ¨ (dead)
+#define RS_CEDL ALGR(RS_PLUS) // ¸ (dead)
+// Row 2
+#define RS_BSLS ALGR(RS_Q)    // (backslash)
+#define RS_PIPE ALGR(RS_W)    // |
+#define RS_EURO ALGR(RS_E)    // €
+#define RS_DIV  ALGR(RS_SCAR) // ÷
+#define RS_MUL  ALGR(RS_DSTR) // ×
+// Row 3
+#define RS_LBRC ALGR(RS_F)    // [
+#define RS_RBRC ALGR(RS_G)    // ]
+#define RS_LLST ALGR(RS_K)    // ł
+#define RS_CLST ALGR(RS_L)    // Ł
+#define RS_SS   ALGR(RS_CACU) // ß
+#define RS_CURR ALGR(RS_ZCAR) // ¤
+// Row 4
+#define RS_AT   ALGR(RS_V)    // @
+#define RS_LCBR ALGR(RS_B)    // {
+#define RS_RCBR ALGR(RS_N)    // }
+#define RS_SECT ALGR(RS_M)    // §