Personal user space and CRKBD R2G keymap (#15888)

* r2g folder groundwork

* Default mb keymap featuring mb logos

* Migrate Oled to keyboard folder

* Move rules configs to support config better

* update readmes

* Liscnece update

* Update config and fix issues caused by redef errs

* funciton name adjusts, define specific rgb modes

* move default oled font to postconfig

* update oled in line with develop merge

* fix return value

* Add some default rgb matrix defines

* del ugfx

* remove #include <stdio.h>

* create personal keymap for r2g

* reduce firmware size

* change keymap to follow physical layout

* remove RGBlight config lines to make both sides work (@Dasky on MechboardsUK Discord)

* strip down configuration, similar to crkbd/r2g:mb_via

* remove wrong oled code overwriting the r2g one

* broken code with RGB matrix (briks right side)

* remove high max brightness limit

* caps lock tap dance and RGB indicator for active caps lock

* fix caps lock led on right side

* add test macro

* remove latex macro which is too slow

* move caps lock tap dance to RALT and add space cadet shift

* switch CTL with ALT in first layer

* add tap dance for ESC/DEL

* space cadet tap dance with caps lock; shift works by needs a short pause

* add space cadet tap dance with caps lock on the right; shift works by needs a short pause and does not hold

* make more keys transparent

* enable auto shift and use logo on both oleds

* add user oled logo, slows down linking considerably

* oled name

* add arrow keys in usual configuration and add linear configuration to symbol layer

* add unicoede support

* add accents

* update to latest version

* add colemak dh layer

* report auto shift timeout

* define layer name shorcuts correctly

* disable VIA to enable more layers

* enable NKRO

* move some rules and unicode to user space

* move oled and tap dances to user space

* move tap dances fully out of keymap

* expand unicode map

* fix unicode code

* revert changes to r2g, make it equal to merged code

* revert changes to r2g, make it equal to merged code

* clang-format userspace

* clang-format config file

* Update keyboards/crkbd/keymaps/rmeli/keymap.c

* replace define with enum

* add licenses

3 files changed, 294 insertions, 0 deletions

diff --git a/users/rmeli/keyrecords/tap_dances.c b/users/rmeli/keyrecords/tap_dances.c
new file mode 100644
index 0000000000..3b38bf4a33
--- /dev/null
+++ b/users/rmeli/keyrecords/tap_dances.c
@@ -0,0 +1,139 @@
+/*
+Copyright 2021-2022 Rocco Meli <@RMeli>
+
+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 "keyrecords/tap_dances.h"
+
+// + ---------- +
+// + TAP DANCES |
+// + ---------- +
+
+// Tap dances definitions
+// Need to needs to be defined in a .c file to avoid a linker error (multiple definitions)
+qk_tap_dance_action_t tap_dance_actions[] = {
+    [TD_LSPO_CAPS] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, LSPO_CAPS_finished, LSPO_CAPS_reset),
+    [TD_RSPC_CAPS] = ACTION_TAP_DANCE_FN_ADVANCED(NULL, RSPC_CAPS_finished, RSPC_CAPS_reset),
+    [TD_ESC_DEL]   = ACTION_TAP_DANCE_DOUBLE(KC_ESC, KC_DEL),
+};
+
+// + ------ +
+// + DANCES |
+// + ------ +
+
+// https://github.com/qmk/qmk_firmware/blob/9294258c02d3e025e01935a06c4d9f1997535bda/users/gordon/gordon.c#L112-L135
+td_state_t hold_cur_dance(qk_tap_dance_state_t *state) {
+    if (state->count == 1) {
+        if (state->interrupted) {
+            if (!state->pressed)
+                return TD_SINGLE_TAP;
+            else
+                return TD_SINGLE_HOLD;
+        } else {
+            if (!state->pressed)
+                return TD_SINGLE_TAP;
+            else
+                return TD_SINGLE_HOLD;
+        }
+    } else if (state->count == 2) {
+        if (state->pressed)
+            return TD_NONE;
+        else
+            return TD_DOUBLE_TAP;
+    } else
+        return TD_NONE;
+}
+
+// + ------------------------------------------------ +
+// + LEFT SHIFT PARENTHESIS OPEN (LSPO) AND CAPS LOCK |
+// + ------------------------------------------------ +
+
+// Create an instance of 'td_tap_t' for the 'LSPO_CAPS' tap dance.
+static td_tap_t LSPO_CAPS_state = {.is_press_action = true, .state = TD_NONE};
+
+void LSPO_CAPS_finished(qk_tap_dance_state_t *state, void *user_data) {
+    LSPO_CAPS_state.state = hold_cur_dance(state);
+    switch (LSPO_CAPS_state.state) {
+        case TD_SINGLE_TAP:
+            register_code16(KC_LPRN);
+            break;
+        case TD_SINGLE_HOLD:
+            register_code16(KC_LSFT);
+            break;
+        case TD_DOUBLE_TAP:
+            register_code16(KC_CAPS);
+            break;
+        case TD_NONE:
+            break;
+    }
+}
+
+void LSPO_CAPS_reset(qk_tap_dance_state_t *state, void *user_data) {
+    switch (LSPO_CAPS_state.state) {
+        case TD_SINGLE_TAP:
+            unregister_code16(KC_LPRN);
+            break;
+        case TD_SINGLE_HOLD:
+            unregister_code16(KC_LSFT);
+            break;
+        case TD_DOUBLE_TAP:
+            unregister_code16(KC_CAPS);
+            break;
+        case TD_NONE:
+            break;
+    }
+    LSPO_CAPS_state.state = TD_NONE;
+}
+
+// + -------------------------------------------------- +
+// + RIGHT SHIFT PARENTHESIS CLOSE (RSPC) AND CAPS LOCK |
+// + -------------------------------------------------- +
+
+// Create an instance of 'td_tap_t' for the 'RSPC_CAPS' tap dance.
+static td_tap_t RSPC_CAPS_state = {.is_press_action = true, .state = TD_NONE};
+
+void RSPC_CAPS_finished(qk_tap_dance_state_t *state, void *user_data) {
+    RSPC_CAPS_state.state = hold_cur_dance(state);
+    switch (RSPC_CAPS_state.state) {
+        case TD_SINGLE_TAP:
+            register_code16(KC_RPRN);
+            break;
+        case TD_SINGLE_HOLD:
+            register_code16(KC_RSFT);
+            break;
+        case TD_DOUBLE_TAP:
+            register_code16(KC_CAPS);
+            break;
+        case TD_NONE:
+            break;
+    }
+}
+
+void RSPC_CAPS_reset(qk_tap_dance_state_t *state, void *user_data) {
+    switch (RSPC_CAPS_state.state) {
+        case TD_SINGLE_TAP:
+            unregister_code16(KC_RPRN);
+            break;
+        case TD_SINGLE_HOLD:
+            unregister_code16(KC_RSFT);
+            break;
+        case TD_DOUBLE_TAP:
+            unregister_code16(KC_CAPS);
+            break;
+        case TD_NONE:
+            break;
+    }
+    RSPC_CAPS_state.state = TD_NONE;
+}
diff --git a/users/rmeli/keyrecords/tap_dances.h b/users/rmeli/keyrecords/tap_dances.h
new file mode 100644
index 0000000000..fa749a17f4
--- /dev/null
+++ b/users/rmeli/keyrecords/tap_dances.h
@@ -0,0 +1,70 @@
+/*
+Copyright 2021-2022 Rocco Meli <@RMeli>
+
+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 QMK_KEYBOARD_H
+
+// https://beta.docs.qmk.fm/using-qmk/software-features/feature_tap_dance#example-4-quad-function-tap-dance-id-example-4
+
+// + ---------- +
+// + TAP DANCES |
+// + ---------- +
+
+// Tap dance enums
+enum {
+    TD_LSPO_CAPS,  // Tap once for (, hold once for LSFT, tap twice for CAPS
+    TD_RSPC_CAPS,  // Tap once for ), hold once for RSFT, tap twice for CAPS
+    TD_ESC_DEL,    // Tap once for KC_ESC, twice for KC_DEL
+};
+
+// Rename tap dances for keymap with shortcuts
+#define TD_LSPC TD(TD_LSPO_CAPS)
+#define TD_RSPC TD(TD_RSPC_CAPS)
+#define TD_ED TD(TD_ESC_DEL)
+
+// + ----------- +
+// + KEY PRESSES |
+// + ----------- +
+
+// Different types of key presses
+typedef enum {
+    TD_NONE,
+    TD_SINGLE_TAP,
+    TD_SINGLE_HOLD,
+    TD_DOUBLE_TAP,
+} td_state_t;
+
+// Key press state
+typedef struct {
+    bool       is_press_action;
+    td_state_t state;
+} td_tap_t;
+
+// + --------- +
+// + FUNCTIONS |
+// + --------- +
+
+// Tap dance for fast modifiers; favors being held over being tapped.
+td_state_t hold_cur_dance(qk_tap_dance_state_t *state);
+
+// Left Shift Parenthesis Open (LSPO) and Caps Lock (CAPS) on DOUBLE_TAP
+void LSPO_CAPS_finished(qk_tap_dance_state_t *state, void *user_data);
+void LSPO_CAPS_reset(qk_tap_dance_state_t *state, void *user_data);
+
+// Right Shift Parenthesis Close (RSPC) and Caps Lock (CAPS) on DOUBLE_TAP
+void RSPC_CAPS_finished(qk_tap_dance_state_t *state, void *user_data);
+void RSPC_CAPS_reset(qk_tap_dance_state_t *state, void *user_data);
diff --git a/users/rmeli/keyrecords/unicode.h b/users/rmeli/keyrecords/unicode.h
new file mode 100644
index 0000000000..8e0c02d278
--- /dev/null
+++ b/users/rmeli/keyrecords/unicode.h
@@ -0,0 +1,85 @@
+/*
+Copyright 2021-2022 Rocco Meli <@RMeli>
+
+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 QMK_KEYBOARD_H
+
+// Needs to be active on the OS side as well
+// https://docs.qmk.fm/#/feature_unicode?id=input-modes
+
+enum unicode_names {
+    aGRV,
+    AGRV,
+    aUML,
+    AUML,
+    eGRV,
+    EGRV,
+    eACT,
+    EACT,
+    iGRV,
+    IGRV,
+    iCIR,
+    ICIR,
+    oGRV,
+    OGRV,
+    oUML,
+    OUML,
+    uGRV,
+    UGRV,
+    uUML,
+    UUML,
+};
+
+const uint32_t PROGMEM unicode_map[] = {
+    // KC_A
+    [aGRV] = 0x00E0,  // à
+    [AGRV] = 0x00C0,  // À
+    [aUML] = 0x00E4,  // ä
+    [AUML] = 0x00C4,  // Ä
+    // KC_E
+    [eGRV] = 0x00E8,  // è
+    [EGRV] = 0x00C8,  // È
+    [eACT] = 0x00E9,  // é
+    [EACT] = 0x00C9,  // É
+    // KC_I
+    [iGRV] = 0x00EC,  // ì
+    [IGRV] = 0x00CC,  // Ì
+    [iCIR] = 0x00EE,  // î
+    [ICIR] = 0x00CE,  // Î
+    // KC_O
+    [oGRV] = 0x00F2,  // ò
+    [OGRV] = 0x00D2,  // Ò
+    [oUML] = 0x00F6,  // ö
+    [OUML] = 0x00D6,  // Ö
+    // KC_U
+    [uGRV] = 0x00F9,  // ù
+    [UGRV] = 0x00D9,  // Ù
+    [uUML] = 0x00FC,  // ü
+    [UUML] = 0x00DC,  // Ü
+};
+
+// Accents
+#define A_GRV XP(aGRV, AGRV)
+#define A_UML XP(aUML, AUML)
+#define E_GRV XP(eGRV, EGRV)
+#define E_ACT XP(eACT, EACT)
+#define I_GRV XP(iGRV, IGRV)
+#define I_CIR XP(iCIR, ICIR)
+#define O_GRV XP(oGRV, OGRV)
+#define O_UML XP(oUML, OUML)
+#define U_GRV XP(uGRV, UGRV)
+#define U_UML XP(uUML, UUML)