[CLI] Add c2json (#8817)

* Basic keymap parsing finally works

* Add 'keymap.json' creation to the qmk.keymap module

* Add tests and fix formatting

* Fix/exclude flake8 errors

* Convert keymap.c to valid keymap.json

* Fix some errors

* Add tests

* Finalize keymap.json creation, add json template

* Add docs

* Move pygments to the standard requirements

* Add support for nameless layers, fix tests

* Fix things after rebase

* Add missing 'keymap' value.

* Fix missing layer numbers from advanced keycodes

Buckwich noticed that if the advanced keycode / layer toggling key
contains a number, it goes missing.
Now we properly handle them.
Thx for noticing!

* Apply suggestions from code review

* fixup tests

Co-authored-by: Zach White <skullydazed@drpepper.org>
Co-authored-by: skullY <skullydazed@gmail.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/keyboards/handwired/onekey/keymaps/pytest_nocpp/keymap.c b/keyboards/handwired/onekey/keymaps/pytest_nocpp/keymap.c
new file mode 100644
index 0000000000..4e06bb11ec
--- /dev/null
+++ b/keyboards/handwired/onekey/keymaps/pytest_nocpp/keymap.c
@@ -0,0 +1,23 @@
+#include QMK_KEYBOARD_H
+#include "audio.h"
+
+/* THIS FILE WAS GENERATED AND IS EXPERIMENTAL!
+ *
+ * This file was generated by qmk-compile-json. You may or may not want to
+ * edit it directly.
+ */
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+	[0] = LAYOUT(KC_ENTER)
+};
+
+void encoder_update_user(uint8_t index, bool clockwise) {
+	if (index == 0) {
+		if (clockwise) {
+			tap_code(KC_UP);
+		} else {
+			tap_code(KC_DOWN);
+		}
+	}
+
+};