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-rw-r--r--quantum/unicode/unicode.c376
-rw-r--r--quantum/unicode/unicode.h165
-rw-r--r--quantum/unicode/utf8.c46
-rw-r--r--quantum/unicode/utf8.h21
4 files changed, 608 insertions, 0 deletions
diff --git a/quantum/unicode/unicode.c b/quantum/unicode/unicode.c
new file mode 100644
index 0000000000..f9f429e7af
--- /dev/null
+++ b/quantum/unicode/unicode.c
@@ -0,0 +1,376 @@
+/* Copyright 2022
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "unicode.h"
+
+#include "eeprom.h"
+#include "eeconfig.h"
+#include "action.h"
+#include "action_util.h"
+#include "host.h"
+#include "keycode.h"
+#include "wait.h"
+#include "audio.h"
+#include "send_string.h"
+#include "utf8.h"
+
+#if defined(UNICODE_ENABLE) + defined(UNICODEMAP_ENABLE) + defined(UCIS_ENABLE) > 1
+# error "Cannot enable more than one Unicode method (UNICODE, UNICODEMAP, UCIS) at the same time"
+#endif
+
+// Keycodes used for starting Unicode input on different platforms
+#ifndef UNICODE_KEY_MAC
+# define UNICODE_KEY_MAC KC_LEFT_ALT
+#endif
+#ifndef UNICODE_KEY_LNX
+# define UNICODE_KEY_LNX LCTL(LSFT(KC_U))
+#endif
+#ifndef UNICODE_KEY_WINC
+# define UNICODE_KEY_WINC KC_RIGHT_ALT
+#endif
+
+// Comma-delimited, ordered list of input modes selected for use (e.g. in cycle)
+// Example: #define UNICODE_SELECTED_MODES UC_WINC, UC_LNX
+#ifndef UNICODE_SELECTED_MODES
+# define UNICODE_SELECTED_MODES -1
+#endif
+
+// Whether input mode changes in cycle should be written to EEPROM
+#ifndef UNICODE_CYCLE_PERSIST
+# define UNICODE_CYCLE_PERSIST true
+#endif
+
+// Delay between starting Unicode input and sending a sequence, in ms
+#ifndef UNICODE_TYPE_DELAY
+# define UNICODE_TYPE_DELAY 10
+#endif
+
+unicode_config_t unicode_config;
+uint8_t unicode_saved_mods;
+led_t unicode_saved_led_state;
+
+#if UNICODE_SELECTED_MODES != -1
+static uint8_t selected[] = {UNICODE_SELECTED_MODES};
+static int8_t selected_count = ARRAY_SIZE(selected);
+static int8_t selected_index;
+#endif
+
+/** \brief unicode input mode set at user level
+ *
+ * Run user code on unicode input mode change
+ */
+__attribute__((weak)) void unicode_input_mode_set_user(uint8_t input_mode) {}
+
+/** \brief unicode input mode set at keyboard level
+ *
+ * Run keyboard code on unicode input mode change
+ */
+__attribute__((weak)) void unicode_input_mode_set_kb(uint8_t input_mode) {
+ unicode_input_mode_set_user(input_mode);
+}
+
+#ifdef AUDIO_ENABLE
+# ifdef UNICODE_SONG_MAC
+static float song_mac[][2] = UNICODE_SONG_MAC;
+# endif
+# ifdef UNICODE_SONG_LNX
+static float song_lnx[][2] = UNICODE_SONG_LNX;
+# endif
+# ifdef UNICODE_SONG_WIN
+static float song_win[][2] = UNICODE_SONG_WIN;
+# endif
+# ifdef UNICODE_SONG_BSD
+static float song_bsd[][2] = UNICODE_SONG_BSD;
+# endif
+# ifdef UNICODE_SONG_WINC
+static float song_winc[][2] = UNICODE_SONG_WINC;
+# endif
+# ifdef UNICODE_SONG_EMACS
+static float song_emacs[][2] = UNICODE_SONG_EMACS;
+# endif
+
+static void unicode_play_song(uint8_t mode) {
+ switch (mode) {
+# ifdef UNICODE_SONG_MAC
+ case UC_MAC:
+ PLAY_SONG(song_mac);
+ break;
+# endif
+# ifdef UNICODE_SONG_LNX
+ case UC_LNX:
+ PLAY_SONG(song_lnx);
+ break;
+# endif
+# ifdef UNICODE_SONG_WIN
+ case UC_WIN:
+ PLAY_SONG(song_win);
+ break;
+# endif
+# ifdef UNICODE_SONG_BSD
+ case UC_BSD:
+ PLAY_SONG(song_bsd);
+ break;
+# endif
+# ifdef UNICODE_SONG_WINC
+ case UC_WINC:
+ PLAY_SONG(song_winc);
+ break;
+# endif
+# ifdef UNICODE_SONG_EMACS
+ case UC_EMACS:
+ PLAY_SONG(song_emacs);
+ break;
+# endif
+ }
+}
+#endif
+
+void unicode_input_mode_init(void) {
+ unicode_config.raw = eeprom_read_byte(EECONFIG_UNICODEMODE);
+#if UNICODE_SELECTED_MODES != -1
+# if UNICODE_CYCLE_PERSIST
+ // Find input_mode in selected modes
+ int8_t i;
+ for (i = 0; i < selected_count; i++) {
+ if (selected[i] == unicode_config.input_mode) {
+ selected_index = i;
+ break;
+ }
+ }
+ if (i == selected_count) {
+ // Not found: input_mode isn't selected, change to one that is
+ unicode_config.input_mode = selected[selected_index = 0];
+ }
+# else
+ // Always change to the first selected input mode
+ unicode_config.input_mode = selected[selected_index = 0];
+# endif
+#endif
+ unicode_input_mode_set_kb(unicode_config.input_mode);
+ dprintf("Unicode input mode init to: %u\n", unicode_config.input_mode);
+}
+
+uint8_t get_unicode_input_mode(void) {
+ return unicode_config.input_mode;
+}
+
+void set_unicode_input_mode(uint8_t mode) {
+ unicode_config.input_mode = mode;
+ persist_unicode_input_mode();
+#ifdef AUDIO_ENABLE
+ unicode_play_song(mode);
+#endif
+ unicode_input_mode_set_kb(mode);
+ dprintf("Unicode input mode set to: %u\n", unicode_config.input_mode);
+}
+
+void cycle_unicode_input_mode(int8_t offset) {
+#if UNICODE_SELECTED_MODES != -1
+ selected_index = (selected_index + offset) % selected_count;
+ if (selected_index < 0) {
+ selected_index += selected_count;
+ }
+ unicode_config.input_mode = selected[selected_index];
+# if UNICODE_CYCLE_PERSIST
+ persist_unicode_input_mode();
+# endif
+# ifdef AUDIO_ENABLE
+ unicode_play_song(unicode_config.input_mode);
+# endif
+ unicode_input_mode_set_kb(unicode_config.input_mode);
+ dprintf("Unicode input mode cycle to: %u\n", unicode_config.input_mode);
+#endif
+}
+
+void persist_unicode_input_mode(void) {
+ eeprom_update_byte(EECONFIG_UNICODEMODE, unicode_config.input_mode);
+}
+
+__attribute__((weak)) void unicode_input_start(void) {
+ unicode_saved_led_state = host_keyboard_led_state();
+
+ // Note the order matters here!
+ // Need to do this before we mess around with the mods, or else
+ // UNICODE_KEY_LNX (which is usually Ctrl-Shift-U) might not work
+ // correctly in the shifted case.
+ if (unicode_config.input_mode == UC_LNX && unicode_saved_led_state.caps_lock) {
+ tap_code(KC_CAPS_LOCK);
+ }
+
+ unicode_saved_mods = get_mods(); // Save current mods
+ clear_mods(); // Unregister mods to start from a clean state
+ clear_weak_mods();
+
+ switch (unicode_config.input_mode) {
+ case UC_MAC:
+ register_code(UNICODE_KEY_MAC);
+ break;
+ case UC_LNX:
+ tap_code16(UNICODE_KEY_LNX);
+ break;
+ case UC_WIN:
+ // For increased reliability, use numpad keys for inputting digits
+ if (!unicode_saved_led_state.num_lock) {
+ tap_code(KC_NUM_LOCK);
+ }
+ register_code(KC_LEFT_ALT);
+ wait_ms(UNICODE_TYPE_DELAY);
+ tap_code(KC_KP_PLUS);
+ break;
+ case UC_WINC:
+ tap_code(UNICODE_KEY_WINC);
+ tap_code(KC_U);
+ break;
+ case UC_EMACS:
+ // The usual way to type unicode in emacs is C-x-8 <RET> then the unicode number in hex
+ tap_code16(LCTL(KC_X));
+ tap_code16(KC_8);
+ tap_code16(KC_ENTER);
+ break;
+ }
+
+ wait_ms(UNICODE_TYPE_DELAY);
+}
+
+__attribute__((weak)) void unicode_input_finish(void) {
+ switch (unicode_config.input_mode) {
+ case UC_MAC:
+ unregister_code(UNICODE_KEY_MAC);
+ break;
+ case UC_LNX:
+ tap_code(KC_SPACE);
+ if (unicode_saved_led_state.caps_lock) {
+ tap_code(KC_CAPS_LOCK);
+ }
+ break;
+ case UC_WIN:
+ unregister_code(KC_LEFT_ALT);
+ if (!unicode_saved_led_state.num_lock) {
+ tap_code(KC_NUM_LOCK);
+ }
+ break;
+ case UC_WINC:
+ tap_code(KC_ENTER);
+ break;
+ case UC_EMACS:
+ tap_code16(KC_ENTER);
+ break;
+ }
+
+ set_mods(unicode_saved_mods); // Reregister previously set mods
+}
+
+__attribute__((weak)) void unicode_input_cancel(void) {
+ switch (unicode_config.input_mode) {
+ case UC_MAC:
+ unregister_code(UNICODE_KEY_MAC);
+ break;
+ case UC_LNX:
+ tap_code(KC_ESCAPE);
+ if (unicode_saved_led_state.caps_lock) {
+ tap_code(KC_CAPS_LOCK);
+ }
+ break;
+ case UC_WINC:
+ tap_code(KC_ESCAPE);
+ break;
+ case UC_WIN:
+ unregister_code(KC_LEFT_ALT);
+ if (!unicode_saved_led_state.num_lock) {
+ tap_code(KC_NUM_LOCK);
+ }
+ break;
+ case UC_EMACS:
+ tap_code16(LCTL(KC_G)); // C-g cancels
+ break;
+ }
+
+ set_mods(unicode_saved_mods); // Reregister previously set mods
+}
+
+// clang-format off
+
+static void send_nibble_wrapper(uint8_t digit) {
+ if (unicode_config.input_mode == UC_WIN) {
+ uint8_t kc = digit < 10
+ ? KC_KP_1 + (10 + digit - 1) % 10
+ : KC_A + (digit - 10);
+ tap_code(kc);
+ return;
+ }
+ send_nibble(digit);
+}
+
+// clang-format on
+
+void register_hex(uint16_t hex) {
+ for (int i = 3; i >= 0; i--) {
+ uint8_t digit = ((hex >> (i * 4)) & 0xF);
+ send_nibble_wrapper(digit);
+ }
+}
+
+void register_hex32(uint32_t hex) {
+ bool onzerostart = true;
+ for (int i = 7; i >= 0; i--) {
+ if (i <= 3) {
+ onzerostart = false;
+ }
+ uint8_t digit = ((hex >> (i * 4)) & 0xF);
+ if (digit == 0) {
+ if (!onzerostart) {
+ send_nibble_wrapper(digit);
+ }
+ } else {
+ send_nibble_wrapper(digit);
+ onzerostart = false;
+ }
+ }
+}
+
+void register_unicode(uint32_t code_point) {
+ if (code_point > 0x10FFFF || (code_point > 0xFFFF && unicode_config.input_mode == UC_WIN)) {
+ // Code point out of range, do nothing
+ return;
+ }
+
+ unicode_input_start();
+ if (code_point > 0xFFFF && unicode_config.input_mode == UC_MAC) {
+ // Convert code point to UTF-16 surrogate pair on macOS
+ code_point -= 0x10000;
+ uint32_t lo = code_point & 0x3FF, hi = (code_point & 0xFFC00) >> 10;
+ register_hex32(hi + 0xD800);
+ register_hex32(lo + 0xDC00);
+ } else {
+ register_hex32(code_point);
+ }
+ unicode_input_finish();
+}
+
+void send_unicode_string(const char *str) {
+ if (!str) {
+ return;
+ }
+
+ while (*str) {
+ int32_t code_point = 0;
+ str = decode_utf8(str, &code_point);
+
+ if (code_point >= 0) {
+ register_unicode(code_point);
+ }
+ }
+}
diff --git a/quantum/unicode/unicode.h b/quantum/unicode/unicode.h
new file mode 100644
index 0000000000..b3e43799ff
--- /dev/null
+++ b/quantum/unicode/unicode.h
@@ -0,0 +1,165 @@
+/* Copyright 2022
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+#include "quantum.h"
+
+typedef union {
+ uint32_t raw;
+ struct {
+ uint8_t input_mode : 8;
+ };
+} unicode_config_t;
+
+extern unicode_config_t unicode_config;
+
+enum unicode_input_modes {
+ UC_MAC, // macOS using Unicode Hex Input
+ UC_LNX, // Linux using IBus
+ UC_WIN, // Windows using EnableHexNumpad
+ UC_BSD, // BSD (not implemented)
+ UC_WINC, // Windows using WinCompose (https://github.com/samhocevar/wincompose)
+ UC_EMACS, // Emacs is an operating system in search of a good text editor
+ UC__COUNT // Number of available input modes (always leave at the end)
+};
+
+void unicode_input_mode_init(void);
+uint8_t get_unicode_input_mode(void);
+void set_unicode_input_mode(uint8_t mode);
+void cycle_unicode_input_mode(int8_t offset);
+void persist_unicode_input_mode(void);
+
+void unicode_input_mode_set_user(uint8_t input_mode);
+void unicode_input_mode_set_kb(uint8_t input_mode);
+
+void unicode_input_start(void);
+void unicode_input_finish(void);
+void unicode_input_cancel(void);
+
+void register_hex(uint16_t hex);
+void register_hex32(uint32_t hex);
+void register_unicode(uint32_t code_point);
+
+void send_unicode_string(const char *str);
+
+// clang-format off
+
+#define UC_BSPC UC(0x0008) // (backspace)
+
+#define UC_SPC UC(0x0020) // (space)
+#define UC_EXLM UC(0x0021) // !
+#define UC_DQUT UC(0x0022) // "
+#define UC_HASH UC(0x0023) // #
+#define UC_DLR UC(0x0024) // $
+#define UC_PERC UC(0x0025) // %
+#define UC_AMPR UC(0x0026) // &
+#define UC_QUOT UC(0x0027) // '
+#define UC_LPRN UC(0x0028) // (
+#define UC_RPRN UC(0x0029) // )
+#define UC_ASTR UC(0x002A) // *
+#define UC_PLUS UC(0x002B) // +
+#define UC_COMM UC(0x002C) // ,
+#define UC_DASH UC(0x002D) // -
+#define UC_DOT UC(0x002E) // .
+#define UC_SLSH UC(0x002F) // /
+
+#define UC_0 UC(0x0030) // 0
+#define UC_1 UC(0x0031) // 1
+#define UC_2 UC(0x0032) // 2
+#define UC_3 UC(0x0033) // 3
+#define UC_4 UC(0x0034) // 4
+#define UC_5 UC(0x0035) // 5
+#define UC_6 UC(0x0036) // 6
+#define UC_7 UC(0x0037) // 7
+#define UC_8 UC(0x0038) // 8
+#define UC_9 UC(0x0039) // 9
+#define UC_COLN UC(0x003A) // :
+#define UC_SCLN UC(0x003B) // ;
+#define UC_LT UC(0x003C) // <
+#define UC_EQL UC(0x003D) // =
+#define UC_GT UC(0x003E) // >
+#define UC_QUES UC(0x003F) // ?
+
+#define UC_AT UC(0x0040) // @
+#define UC_A UC(0x0041) // A
+#define UC_B UC(0x0042) // B
+#define UC_C UC(0x0043) // C
+#define UC_D UC(0x0044) // D
+#define UC_E UC(0x0045) // E
+#define UC_F UC(0x0046) // F
+#define UC_G UC(0x0047) // G
+#define UC_H UC(0x0048) // H
+#define UC_I UC(0x0049) // I
+#define UC_J UC(0x004A) // J
+#define UC_K UC(0x004B) // K
+#define UC_L UC(0x004C) // L
+#define UC_M UC(0x004D) // M
+#define UC_N UC(0x004E) // N
+#define UC_O UC(0x004F) // O
+
+#define UC_P UC(0x0050) // P
+#define UC_Q UC(0x0051) // Q
+#define UC_R UC(0x0052) // R
+#define UC_S UC(0x0053) // S
+#define UC_T UC(0x0054) // T
+#define UC_U UC(0x0055) // U
+#define UC_V UC(0x0056) // V
+#define UC_W UC(0x0057) // W
+#define UC_X UC(0x0058) // X
+#define UC_Y UC(0x0059) // Y
+#define UC_Z UC(0x005A) // Z
+#define UC_LBRC UC(0x005B) // [
+#define UC_BSLS UC(0x005C) // (backslash)
+#define UC_RBRC UC(0x005D) // ]
+#define UC_CIRM UC(0x005E) // ^
+#define UC_UNDR UC(0x005F) // _
+
+#define UC_GRV UC(0x0060) // `
+#define UC_a UC(0x0061) // a
+#define UC_b UC(0x0062) // b
+#define UC_c UC(0x0063) // c
+#define UC_d UC(0x0064) // d
+#define UC_e UC(0x0065) // e
+#define UC_f UC(0x0066) // f
+#define UC_g UC(0x0067) // g
+#define UC_h UC(0x0068) // h
+#define UC_i UC(0x0069) // i
+#define UC_j UC(0x006A) // j
+#define UC_k UC(0x006B) // k
+#define UC_l UC(0x006C) // l
+#define UC_m UC(0x006D) // m
+#define UC_n UC(0x006E) // n
+#define UC_o UC(0x006F) // o
+
+#define UC_p UC(0x0070) // p
+#define UC_q UC(0x0071) // q
+#define UC_r UC(0x0072) // r
+#define UC_s UC(0x0073) // s
+#define UC_t UC(0x0074) // t
+#define UC_u UC(0x0075) // u
+#define UC_v UC(0x0076) // v
+#define UC_w UC(0x0077) // w
+#define UC_x UC(0x0078) // x
+#define UC_y UC(0x0079) // y
+#define UC_z UC(0x007A) // z
+#define UC_LCBR UC(0x007B) // {
+#define UC_PIPE UC(0x007C) // |
+#define UC_RCBR UC(0x007D) // }
+#define UC_TILD UC(0x007E) // ~
+#define UC_DEL UC(0x007F) // (delete)
diff --git a/quantum/unicode/utf8.c b/quantum/unicode/utf8.c
new file mode 100644
index 0000000000..4b2cd4d8d4
--- /dev/null
+++ b/quantum/unicode/utf8.c
@@ -0,0 +1,46 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "utf8.h"
+
+// Borrowed from https://nullprogram.com/blog/2017/10/06/
+const char *decode_utf8(const char *str, int32_t *code_point) {
+ const char *next;
+
+ if (str[0] < 0x80) { // U+0000-007F
+ *code_point = str[0];
+ next = str + 1;
+ } else if ((str[0] & 0xE0) == 0xC0) { // U+0080-07FF
+ *code_point = ((int32_t)(str[0] & 0x1F) << 6) | ((int32_t)(str[1] & 0x3F) << 0);
+ next = str + 2;
+ } else if ((str[0] & 0xF0) == 0xE0) { // U+0800-FFFF
+ *code_point = ((int32_t)(str[0] & 0x0F) << 12) | ((int32_t)(str[1] & 0x3F) << 6) | ((int32_t)(str[2] & 0x3F) << 0);
+ next = str + 3;
+ } else if ((str[0] & 0xF8) == 0xF0 && (str[0] <= 0xF4)) { // U+10000-10FFFF
+ *code_point = ((int32_t)(str[0] & 0x07) << 18) | ((int32_t)(str[1] & 0x3F) << 12) | ((int32_t)(str[2] & 0x3F) << 6) | ((int32_t)(str[3] & 0x3F) << 0);
+ next = str + 4;
+ } else {
+ *code_point = -1;
+ next = str + 1;
+ }
+
+ // part of a UTF-16 surrogate pair - invalid
+ if (*code_point >= 0xD800 && *code_point <= 0xDFFF) {
+ *code_point = -1;
+ }
+
+ return next;
+}
diff --git a/quantum/unicode/utf8.h b/quantum/unicode/utf8.h
new file mode 100644
index 0000000000..521dd1918c
--- /dev/null
+++ b/quantum/unicode/utf8.h
@@ -0,0 +1,21 @@
+/* Copyright 2021 QMK
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+const char *decode_utf8(const char *str, int32_t *code_point);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-06 12:18:16 +0000