[Keymap] Reorganization, cleanup and readmes for drashna code (#15617)

users/drashna/keyrecords/tapping.c

@@ -0,0 +1,64 @@
+// Copyright 2021 Christopher Courtney, aka Drashna Jael're  (@drashna) <drashna@live.com>
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "drashna.h"
+
+__attribute__((weak)) uint16_t get_tapping_term(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case BK_LWER:
+            return TAPPING_TERM + 25;
+        default:
+            return TAPPING_TERM;
+    }
+}
+
+__attribute__((weak)) bool get_permissive_hold(uint16_t keycode, keyrecord_t *record) {
+    // Immediately select the hold action when another key is tapped:
+    // return true;
+    // Do not select the hold action when another key is tapped.
+    // return false;
+    switch (keycode) {
+        default:
+            return false;
+    }
+}
+
+__attribute__((weak)) bool get_hold_on_other_key_press(uint16_t keycode, keyrecord_t *record) {
+    // Immediately select the hold action when another key is pressed.
+    // return true;
+    // Do not select the hold action when another key is pressed.
+    // return false;
+    switch (keycode) {
+        case QK_LAYER_TAP ... QK_LAYER_TAP_MAX:
+            return true;
+        default:
+            return false;
+    }
+}
+
+__attribute__((weak)) bool get_ignore_mod_tap_interrupt(uint16_t keycode, keyrecord_t *record) {
+    // Do not force the mod-tap key press to be handled as a modifier
+    // if any other key was pressed while the mod-tap key is held down.
+    // return true;
+    // Force the mod-tap key press to be handled as a modifier if any
+    // other key was pressed while the mod-tap key is held down.
+    // return false;
+    switch (keycode) {
+        default:
+            return true;
+    }
+}
+
+__attribute__((weak)) bool get_tapping_force_hold(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        default:
+            return false;
+    }
+}
+
+__attribute__((weak)) bool get_retro_tapping(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        default:
+            return false;
+    }
+}