// Copyright 2024-2025 Google LLC // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // // https://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. #pragma once #include #if KEYCODE_STRING_ENABLE /** * @brief Formats a QMK keycode as a human-readable string. * * Given a keycode, like `KC_A`, this function returns a formatted string, like * "KC_A". This is useful for debugging and diagnostics so that keys are more * easily identified than they would be by raw numerical codes. * * @note The returned char* string should be used right away. The string memory * is reused and will be overwritten by the next call to `keycode_string()`. * * Many common QMK keycodes are understood by this function, but not all. * Recognized keycodes include: * * - Most basic keycodes, including letters `KC_A` - `KC_Z`, digits `KC_0` - * `KC_9`, function keys `KC_F1` - `KC_F24`, and modifiers like `KC_LSFT`. * * - Modified basic keycodes, like `S(KC_1)` (Shift + 1 = !). * * - `MO`, `TO`, `TG`, `OSL`, `LM(layer,mod)`, `LT(layer,kc)` layer switches. * * - One-shot mod `OSM(mod)` keycodes. * * - Mod-tap `MT(mod, kc)` keycodes. * * - Tap dance keycodes `TD(i)`. * * - Swap hands keycodes `SH_T(kc)`, `SH_TOGG`, etc. * * - Joystick keycodes `JS_n`. * * - Programmable button keycodes `PB_n`. * * - Unicode `UC(codepoint)` and Unicode Map `UM(i)` and `UP(i,j)` keycodes. * * - Keyboard range keycodes `QK_KB_*`. * * - User range (SAFE_RANGE) keycodes `QK_USER_*`. * * Keycodes involving mods like `OSM`, `LM`, `MT` are fully supported only where * a single mod is applied. * * Unrecognized keycodes are printed numerically as hex values like `0x1ABC`. * * Optionally, use `keycode_string_names_user` or `keycode_string_names_kb` to * define names for additional keycodes or override how any of the above are * formatted. * * @param keycode QMK keycode. * @return Stringified keycode. */ const char* get_keycode_string(uint16_t keycode); /** Defines a human-readable name for a keycode. */ typedef struct { uint16_t keycode; const char* name; } keycode_string_name_t; // clang-format off /** * @brief Defines names for additional keycodes for `get_keycode_string()`. * * Define `KEYCODE_STRING_NAMES_USER` in your keymap.c to add names for * additional keycodes to `keycode_string()`. This table may also be used to * override how `keycode_string()` formats a keycode. For example, supposing * keymap.c defines `MYMACRO1` and `MYMACRO2` as custom keycodes: * * KEYCODE_STRING_NAMES_USER( * KEYCODE_STRING_NAME(MYMACRO1), * KEYCODE_STRING_NAME(MYMACRO2), * KEYCODE_STRING_NAME(KC_EXLM), * ); * * The above defines names for `MYMACRO1` and `MYMACRO2`, and overrides * `KC_EXLM` to format as "KC_EXLM" instead of the default "S(KC_1)". */ # define KEYCODE_STRING_NAMES_USER(...) \ static const keycode_string_name_t keycode_string_names_user[] = {__VA_ARGS__}; \ uint16_t keycode_string_names_size_user = \ sizeof(keycode_string_names_user) / sizeof(keycode_string_name_t); \ const keycode_string_name_t* keycode_string_names_data_user = \ keycode_string_names_user /** Same as above, but defines keycode string names at the keyboard level. */ # define KEYCODE_STRING_NAMES_KB(...) \ static const keycode_string_name_t keycode_string_names_kb[] = {__VA_ARGS__}; \ uint16_t keycode_string_names_size_kb = \ sizeof(keycode_string_names_kb) / sizeof(keycode_string_name_t); \ const keycode_string_name_t* keycode_string_names_data_kb = \ keycode_string_names_kb /** Helper to define a keycode_string_name_t. */ # define KEYCODE_STRING_NAME(kc) \ { (kc), #kc } // clang-format on extern const keycode_string_name_t* keycode_string_names_data_user; extern uint16_t keycode_string_names_size_user; extern const keycode_string_name_t* keycode_string_names_data_kb; extern uint16_t keycode_string_names_size_kb; #else // When keycode_string is disabled, fall back to printing keycodes numerically // as decimal values, using get_u16_str() from quantum.c. # define get_keycode_string(kc) get_u16_str(kc, ' ') const char* get_u16_str(uint16_t curr_num, char curr_pad); # define KEYCODE_STRING_NAMES_USER(...) # define KEYCODE_STRING_NAMES_KB(...) # define KEYCODE_STRING_NAME(kc) #endif // KEYCODE_STRING_ENABLE