Made a userspace that allows you to use your keyboard as an order of operations based calculator (#2864)

* Made DZ60 layout with calculator

* Cleaned up and commented, preparing to fix bug with negative in front of open parenthesis as first character

* Fixed bug where negative sign infront of parenthesis as first character was parsed incorrectly

* Made a better solution for the bug from the previous commit

* Modularized and added a userfile so that this code can be used on various keyboards, found in doogle999

* Removed commented code from keymap

* Made the layer that is used for calculations a define so that it can be changed per keyboard

* Made the readme

* Made the readme in the correct place

* Revert "Made the readme in the correct place"

This reverts commit 7f8b59ed9e59c77401a48be3a7ac1e8fd8e84e32.

* Manually synced with qmk upstream

* Stopped repeat, made keys print character that they are defined as rather than what the keyboard wants them to do

* Added support for numpad, might make all keycodes custom so that there is no need to change doogle999.c if you want to change the keycode that is associated with a function, also made numpad automatically activating an option

* Fixed some bugs with backspacing, updated the readme

* Fixed some bugs with numlock turning on at the wrong times when a shift key was down

* Made the return to layer work automatically instead of just forcing it to layer 0

* fixes and style changes, 20% decreased binary size

* Fixed some bugs with double printing and compilation errors on my side

* Fixed bug with exceeding the buffer size

* Removed changes that added const-ness

* Made changes so that backspace does not repeat to remove backspace bugs, still some bugs with recalculating without having typed anything

* Fixed obo error with calc main loop

* Made includes more accurate in keymap for dz60

* Moved flags to user makefile

1 files changed, 74 insertions, 0 deletions

diff --git a/keyboards/dz60/keymaps/doogle999/keymap.c b/keyboards/dz60/keymaps/doogle999/keymap.c
new file mode 100644
index 0000000000..deea641f70
--- /dev/null
+++ b/keyboards/dz60/keymaps/doogle999/keymap.c
@@ -0,0 +1,74 @@
+#include QMK_KEYBOARD_H
+
+#include "doogle999.h"
+
+#define ______ KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Base layer
+ * ,-----------------------------------------------------------------------------------------.
+ * | ESC |  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  0  |  -  |  =  | Backspace |
+ * |-----------------------------------------------------------------------------------------+
+ * |  Tab   |  Q  |  W  |  E  |  R  |  T  |  Y  |  U  |  I  |  O  |  P  |  [  |  ]  |    \   |
+ * |-----------------------------------------------------------------------------------------+
+ * |   Fn    |  A  |  S  |  D  |  F  |  G  |  H  |  J  |  K  |  L  |  ;  |  '  |    Enter    |
+ * |-----------------------------------------------------------------------------------------+
+ * |   Shift   |  Z  |  X  |  C  |  V  |  B  |  N  |  M  |  ,  |  .  |   Shift   |  U  | Del |
+ * |-----------------------------------------------------------------------------------------+
+ * | Ctrl |  Cmd  |  Alt  |               Space               |  /  |  Fn  |  L  |  D  |  R  |
+ * `-----------------------------------------------------------------------------------------'
+ */
+
+	LAYOUT_directional(
+      KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, ______, KC_BSPC,
+      KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS,
+      MO(1), KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
+      KC_LSFT, ______, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_RSFT, KC_UP, KC_DELETE,
+      KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_SPC, KC_SPC, KC_SLSH, MO(1), KC_LEFT, KC_DOWN, KC_RIGHT
+      ),
+
+/* Fn layer
+ * ,-----------------------------------------------------------------------------------------.
+ * |  ~  | F1  | F2  | F3  | F4  | F5  | F6  | f7  | F8  | F9  | F10 | F11 | F12 | Backspace |
+ * |-----------------------------------------------------------------------------------------+
+ * | Reset  | NP1 | NP2 | NP3 | NP4 | NP5 | NP6 | NP7 | NP8 | NP9 | NP0 |VolD |VolU |  Mute  |
+ * |-----------------------------------------------------------------------------------------+
+ * |         |     |     |     |     |     |     |     |     | BlD | BlI | BlT |    Menu     |
+ * |-----------------------------------------------------------------------------------------+
+ * |   Shift   | Cyc+| Cyc-| Val+| Val-| Hue+| Hue-| Sat+| Sat-| Tog |   Shift   | Pup | Ins |
+ * |-----------------------------------------------------------------------------------------+
+ * | Ctrl |  Cmd  |  Alt  |               Space               |HwCal|      |Home | Pdn | End |
+ * `-----------------------------------------------------------------------------------------'
+ */
+
+	LAYOUT_directional(
+      KC_GRV, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, ______, KC_CALC,
+      RESET, KC_KP_1, KC_KP_2, KC_KP_3, KC_KP_4, KC_KP_5, KC_KP_6, KC_KP_7, KC_KP_8, KC_KP_9, KC_KP_0, KC_VOLD, KC_VOLU, KC_MUTE,
+      ______, ______, ______, ______, ______, ______, ______, ______, ______, BL_DEC, BL_INC, BL_TOGG, KC_APP,
+      KC_LSFT, ______, RGB_MOD, RGB_RMOD, RGB_VAI, RGB_VAD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_TOG, KC_RSFT, KC_PGUP, KC_INSERT,
+      KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_SPC, KC_SPC, TO(2), ______, KC_HOME, KC_PGDOWN, KC_END
+      ),
+
+  /* Hardware calculator layer
+  * ,-----------------------------------------------------------------------------------------.
+  * |EndCa|  1  |  2  |  3  |  4  |  5  |  6  |  7  |  8  |  9  |  0  |  -  |  =  | Backspace |
+  * |-----------------------------------------------------------------------------------------+
+  * |        |  Q  |     |  E  |     |  T  |     |     |     |     |  P  |     |     |        |
+  * |-----------------------------------------------------------------------------------------+
+  * |         |     |  S  |     |     |     |     |     |     |  L  |     |     |     Calc    |
+  * |-----------------------------------------------------------------------------------------+
+  * |   Shift   |     |     |     |  C  |     |     |     |     |  .  |   Shift   |     |     |
+  * |-----------------------------------------------------------------------------------------+
+  * |      |        |      |                                   |  /  |      |     |     |     |
+  * `-----------------------------------------------------------------------------------------'
+  */
+
+	LAYOUT_directional(
+    ENDCALC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, ______, KC_BSPC,
+    ______, KC_Q,  ______, KC_E, ______, KC_T, ______, ______, ______, ______, KC_P,  ______, ______, ______,
+    ______, ______, KC_S, ______, ______, ______, ______, ______, ______, KC_L, ______, ______, CALC,
+    KC_LSFT, ______, ______, ______, KC_C, ______, ______, ______, ______, ______, KC_DOT, KC_RSFT, ______, ______,
+    ______, ______, ______, ______, ______, ______, KC_SLSH, ______, ______, ______, ______
+  ),
+};
\ No newline at end of file