# keymap_beautifier.py
## About
This Python 3 script, by [Tsan-Kuang Lee](https://github.com/tsankuanglee) takes the keymap.c downloaded from [ErgoDox EZ Configurator](https://configure.ergodox-ez.com/) and beautifies it for easier customization, allowing one to quickly draft a layout to build upon.
## Features
For example, the original `keymap.c` looks like
```
[0] = LAYOUT_ergodox(KC_EQUAL,KC_1,KC_2,KC_3,KC_4,KC_5,LCTL(KC_MINUS),KC_DELETE,KC_Q,KC_W,KC_E,KC_R,KC_T,KC_LBRACKET,KC_BSPACE,KC_A,KC_S,KC_D,KC_F,KC_G,KC_LSPO,CTL_T(KC_Z),KC_X,KC_C,KC_V,KC_B,ALL_T(KC_NO),LT(1,KC_GRAVE),KC_QUOTE,LALT(KC_LSHIFT),KC_LEFT,KC_RIGHT,ALT_T(KC_APPLICATION),KC_LGUI,KC_HOME,KC_SPACE,KC_UNDS,KC_END,LCTL(KC_EQUAL),KC_6,KC_7,KC_8,KC_9,KC_0,KC_MINUS,KC_RBRACKET,KC_Y,KC_U,KC_I,KC_O,KC_P,KC_BSLASH,KC_H,ALT_T(KC_J),KC_K,KC_L,LT(2,KC_SCOLON),GUI_T(KC_QUOTE),MEH_T(KC_NO),KC_N,KC_M,KC_COMMA,KC_DOT,CTL_T(KC_SLASH),KC_RSPC,KC_UP,KC_DOWN,KC_LBRACKET,KC_RBRACKET,TT(1),KC_LALT,CTL_T(KC_ESCAPE),KC_PGUP,KC_PGDOWN,LT(1,KC_TAB),KC_ENTER),
```
The beautifier parses it and outputs:
```
[0] = LAYOUT_ergodox(
// left hand
KC_EQUAL , KC_1 , KC_2 , KC_3 , KC_4 , KC_5, LCTL(KC_MINUS),
KC_DELETE , KC_Q , KC_W , KC_E , KC_R , KC_T, KC_LBRACKET ,
KC_BSPACE , KC_A , KC_S , KC_D , KC_F , KC_G,
KC_LSPO , CTL_T(KC_Z), KC_X , KC_C , KC_V , KC_B, ALL_T(KC_NO) ,
LT(1,KC_GRAVE), KC_QUOTE , LALT(KC_LSHIFT), KC_LEFT, KC_RIGHT,
// left thumb
ALT_T(KC_APPLICATION), KC_LGUI,
KC_HOME,
KC_SPACE, KC_UNDS , KC_END ,
// right hand
LCTL(KC_EQUAL), KC_6, KC_7 , KC_8 , KC_9 , KC_0 , KC_MINUS ,
KC_RBRACKET , KC_Y, KC_U , KC_I , KC_O , KC_P , KC_BSLASH ,
KC_H, ALT_T(KC_J), KC_K , KC_L , LT(2,KC_SCOLON), GUI_T(KC_QUOTE),
MEH_T(KC_NO) , KC_N, KC_M , KC_COMMA, KC_DOT , CTL_T(KC_SLASH), KC_RSPC ,
KC_UP , KC_DOWN , KC_LBRACKET, KC_RBRACKET , TT(1) ,
// right thumb
KC_LALT , CTL_T(KC_ESCAPE),
KC_PGUP ,
KC_PGDOWN, LT(1,KC_TAB) , KC_ENTER
)
```
Optionally, it can also render [LAYOUT_ergodox_pretty](https://github.com/qmk/qmk_firmware/blob/ee700b2e831067bdb7584425569b61bc6329247b/keyboards/ergodox_ez/keymaps/bpruitt-goddard/keymap.c#L49-L57):
```
[0] = LAYOUT_ergodox_pretty(
KC_ESCAPE, KC_1, KC_2, KC_3, KC_4, KC_5, KC_LEAD, KC_LEAD, KC_6 , KC_7 , KC_8 , KC_9 , KC_0 , KC_BSPACE ,
KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_HYPR, KC_HYPR, KC_Y , KC_U , KC_I , KC_O , KC_P , KC_BSLASH ,
KC_LCTRL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H , KC_J , KC_K , KC_L , KC_SCOLON , KC_QUOTE ,
KC_LSHIFT, KC_Z, KC_X, KC_C, KC_V, KC_B, SH_MON, SH_MON , KC_N , KC_M , KC_COMMA , KC_DOT , KC_SLASH , KC_RSHIFT ,
LT(6,KC_NO), LT(7,KC_NO), KC_LCTRL, KC_LGUI, KC_LALT, ALGR_T(KC_MINUS), RGUI_T(KC_EQUAL), RCTL_T(KC_LBRACKET), LT(10,KC_RBRACKET), LT(6,KC_APPLICATION),
LT(6,KC_GRAVE), MEH_T(KC_NO), KC_LEFT, KC_RIGHT ,
LT(10,KC_DELETE), KC_UP ,
KC_SPACE, LT(8,KC_ENTER), LT(7,KC_BSPACE), KC_DOWN, LT(7,KC_SPACE), LT(8,KC_ENTER)
)
```
We can also align everythng t othe left (easier editing in my opinon):
```
[0] = LAYOUT_ergodox_pretty(
KC_ESCAPE , KC_1 , KC_2 , KC_3 , KC_4 , KC_5 , KC_LEAD , KC_LEAD, KC_6 , KC_7 , KC_8 , KC_9 , KC_0 , KC_BSPACE ,
KC_TAB , KC_Q , KC_W , KC_E , KC_R , KC_T , KC_HYPR , KC_HYPR, KC_Y , KC_U , KC_I , KC_O , KC_P , KC_BSLASH ,
KC_LCTRL , KC_A , KC_S , KC_D , KC_F , KC_G , KC_H , KC_J , KC_K , KC_L , KC_SCOLON , KC_QUOTE ,
KC_LSHIFT , KC_Z , KC_X , KC_C , KC_V , KC_B , SH_MON , SH_MON , KC_N , KC_M , KC_COMMA , KC_DOT , KC_SLASH , KC_RSHIFT ,
LT(6,KC_NO), LT(7,KC_NO), KC_LCTRL, KC_LGUI, KC_LALT , ALGR_T(KC_MINUS), RGUI_T(KC_EQUAL), RCTL_T(KC_LBRACKET), LT(10,KC_RBRACKET), LT(6,KC_APPLICATION),
LT(6,KC_GRAVE), MEH_T(KC_NO) , KC_LEFT, KC_RIGHT ,
LT(10,KC_DELETE), KC_UP ,
KC_SPACE, LT(8,KC_ENTER), LT(7,KC_BSPACE) , KC_DOWN, LT(7,KC_SPACE), LT(8,KC_ENTER)
)
```
## Usage
### With docker
This is the cleaner way. `Docker` is the only requirement. The program executes within a container that has all dependencies installed.
First build the images. (Run once)
```
cd QMK_GIT_REPO_dir/keyboards/ergodox_ez/util/keymap_beautifier
docker build -t keymapbeautifier:1.0 .
```
Run it
```
cd QMK_GIT_REPO_dir/keyboards/ergodox_ez/util/keymap_beautifier
cp PATH_TO_YOUR_C_SOURCE_FILE.c input.c
./docker_run.sh input.c -p -c -o output.c
```
The prettified file is written to `output.c`. See the section Tweaks for non-default settings.
### Without docker
Requirements:
* python3 (tested on 3.7.4)
* python module `pycparser` installed (with `pip install pycparser`)
To run:
```
cd QMK_GIT_REPO_dir/keyboards/ergodox_ez/util/keymap_beautifier
cp PATH_TO_YOUR_C_SOURCE_FILE.c input.c
./KeymapBeautifier.py input.c -p -c -o output.c
```
The prettified file is written to `output.c`. See the section Tweaks for non-default settings.
## Tweaks
```
usage: KeymapBeautifier.py [-h] [-o OUTPUT_FILENAME] [-p] [-c] input_filename
Beautify keymap.c downloaded from ErgoDox-Ez Configurator for easier
customization.
positional arguments:
input_filename input file: c source code file that has the layer
keymaps
optional arguments:
-h, --help show this help message and exit
-o OUTPUT_FILENAME, --output-filename OUTPUT_FILENAME
output file: beautified c filename. If not given,
output to STDOUT.
-p, --pretty-output-layout
use LAYOUT_ergodox_pretty for output instead of
LAYOUT_ergodox
-c, --justify-toward-center
for LAYOUT_ergodox_pretty, align right for the left
half, and align left for the right half. Default is
align left for both halves.
```
For example,
```
./docker_run.sh input.c -p -c -o output.c
# or if you don't want to use docker:
#./KeymapBeautifier.py input.c -p -c -o output.c
```
will read `input.c`, and produce `output.c` with LAYOUT_ergodox_pretty, and have the key symbols gravitating toward the center.