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-rw-r--r--quantum/send_string.c252
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diff --git a/quantum/send_string.c b/quantum/send_string.c
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--- /dev/null
+++ b/quantum/send_string.c
@@ -0,0 +1,252 @@
+/* Copyright 2021
+ *
+ * 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 <ctype.h>
+
+#include "quantum.h"
+
+#include "send_string.h"
+
+// clang-format off
+
+/* Bit-Packed look-up table to convert an ASCII character to whether
+ * [Shift] needs to be sent with the keycode.
+ */
+__attribute__((weak)) const uint8_t ascii_to_shift_lut[16] PROGMEM = {
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+
+ KCLUT_ENTRY(0, 1, 1, 1, 1, 1, 1, 0),
+ KCLUT_ENTRY(1, 1, 1, 1, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 1, 0, 1, 0, 1, 1),
+ KCLUT_ENTRY(1, 1, 1, 1, 1, 1, 1, 1),
+ KCLUT_ENTRY(1, 1, 1, 1, 1, 1, 1, 1),
+ KCLUT_ENTRY(1, 1, 1, 1, 1, 1, 1, 1),
+ KCLUT_ENTRY(1, 1, 1, 0, 0, 0, 1, 1),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 1, 1, 1, 1, 0)
+};
+
+/* Bit-Packed look-up table to convert an ASCII character to whether
+ * [AltGr] needs to be sent with the keycode.
+ */
+__attribute__((weak)) const uint8_t ascii_to_altgr_lut[16] PROGMEM = {
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0)
+};
+
+/* Bit-Packed look-up table to convert an ASCII character to whether
+ * [Space] needs to be sent after the keycode
+ */
+__attribute__((weak)) const uint8_t ascii_to_dead_lut[16] PROGMEM = {
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0),
+ KCLUT_ENTRY(0, 0, 0, 0, 0, 0, 0, 0)
+};
+
+/* Look-up table to convert an ASCII character to a keycode.
+ */
+__attribute__((weak)) const uint8_t ascii_to_keycode_lut[128] PROGMEM = {
+ // NUL SOH STX ETX EOT ENQ ACK BEL
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ // BS TAB LF VT FF CR SO SI
+ KC_BSPC, KC_TAB, KC_ENT, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ // DLE DC1 DC2 DC3 DC4 NAK SYN ETB
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+ // CAN EM SUB ESC FS GS RS US
+ XXXXXXX, XXXXXXX, XXXXXXX, KC_ESC, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+
+ // ! " # $ % & '
+ KC_SPC, KC_1, KC_QUOT, KC_3, KC_4, KC_5, KC_7, KC_QUOT,
+ // ( ) * + , - . /
+ KC_9, KC_0, KC_8, KC_EQL, KC_COMM, KC_MINS, KC_DOT, KC_SLSH,
+ // 0 1 2 3 4 5 6 7
+ KC_0, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7,
+ // 8 9 : ; < = > ?
+ KC_8, KC_9, KC_SCLN, KC_SCLN, KC_COMM, KC_EQL, KC_DOT, KC_SLSH,
+ // @ A B C D E F G
+ KC_2, KC_A, KC_B, KC_C, KC_D, KC_E, KC_F, KC_G,
+ // H I J K L M N O
+ KC_H, KC_I, KC_J, KC_K, KC_L, KC_M, KC_N, KC_O,
+ // P Q R S T U V W
+ KC_P, KC_Q, KC_R, KC_S, KC_T, KC_U, KC_V, KC_W,
+ // X Y Z [ \ ] ^ _
+ KC_X, KC_Y, KC_Z, KC_LBRC, KC_BSLS, KC_RBRC, KC_6, KC_MINS,
+ // ` a b c d e f g
+ KC_GRV, KC_A, KC_B, KC_C, KC_D, KC_E, KC_F, KC_G,
+ // h i j k l m n o
+ KC_H, KC_I, KC_J, KC_K, KC_L, KC_M, KC_N, KC_O,
+ // p q r s t u v w
+ KC_P, KC_Q, KC_R, KC_S, KC_T, KC_U, KC_V, KC_W,
+ // x y z { | } ~ DEL
+ KC_X, KC_Y, KC_Z, KC_LBRC, KC_BSLS, KC_RBRC, KC_GRV, KC_DEL
+};
+
+// clang-format on
+
+// Note: we bit-pack in "reverse" order to optimize loading
+#define PGM_LOADBIT(mem, pos) ((pgm_read_byte(&((mem)[(pos) / 8])) >> ((pos) % 8)) & 0x01)
+
+void send_string(const char *str) { send_string_with_delay(str, 0); }
+
+void send_string_P(const char *str) { send_string_with_delay_P(str, 0); }
+
+void send_string_with_delay(const char *str, uint8_t interval) {
+ while (1) {
+ char ascii_code = *str;
+ if (!ascii_code) break;
+ if (ascii_code == SS_QMK_PREFIX) {
+ ascii_code = *(++str);
+ if (ascii_code == SS_TAP_CODE) {
+ // tap
+ uint8_t keycode = *(++str);
+ tap_code(keycode);
+ } else if (ascii_code == SS_DOWN_CODE) {
+ // down
+ uint8_t keycode = *(++str);
+ register_code(keycode);
+ } else if (ascii_code == SS_UP_CODE) {
+ // up
+ uint8_t keycode = *(++str);
+ unregister_code(keycode);
+ } else if (ascii_code == SS_DELAY_CODE) {
+ // delay
+ int ms = 0;
+ uint8_t keycode = *(++str);
+ while (isdigit(keycode)) {
+ ms *= 10;
+ ms += keycode - '0';
+ keycode = *(++str);
+ }
+ while (ms--) wait_ms(1);
+ }
+ } else {
+ send_char(ascii_code);
+ }
+ ++str;
+ // interval
+ {
+ uint8_t ms = interval;
+ while (ms--) wait_ms(1);
+ }
+ }
+}
+
+void send_string_with_delay_P(const char *str, uint8_t interval) {
+ while (1) {
+ char ascii_code = pgm_read_byte(str);
+ if (!ascii_code) break;
+ if (ascii_code == SS_QMK_PREFIX) {
+ ascii_code = pgm_read_byte(++str);
+ if (ascii_code == SS_TAP_CODE) {
+ // tap
+ uint8_t keycode = pgm_read_byte(++str);
+ tap_code(keycode);
+ } else if (ascii_code == SS_DOWN_CODE) {
+ // down
+ uint8_t keycode = pgm_read_byte(++str);
+ register_code(keycode);
+ } else if (ascii_code == SS_UP_CODE) {
+ // up
+ uint8_t keycode = pgm_read_byte(++str);
+ unregister_code(keycode);
+ } else if (ascii_code == SS_DELAY_CODE) {
+ // delay
+ int ms = 0;
+ uint8_t keycode = pgm_read_byte(++str);
+ while (isdigit(keycode)) {
+ ms *= 10;
+ ms += keycode - '0';
+ keycode = pgm_read_byte(++str);
+ }
+ while (ms--) wait_ms(1);
+ }
+ } else {
+ send_char(ascii_code);
+ }
+ ++str;
+ // interval
+ {
+ uint8_t ms = interval;
+ while (ms--) wait_ms(1);
+ }
+ }
+}
+
+void send_char(char ascii_code) {
+#if defined(AUDIO_ENABLE) && defined(SENDSTRING_BELL)
+ if (ascii_code == '\a') { // BEL
+ PLAY_SONG(bell_song);
+ return;
+ }
+#endif
+
+ uint8_t keycode = pgm_read_byte(&ascii_to_keycode_lut[(uint8_t)ascii_code]);
+ bool is_shifted = PGM_LOADBIT(ascii_to_shift_lut, (uint8_t)ascii_code);
+ bool is_altgred = PGM_LOADBIT(ascii_to_altgr_lut, (uint8_t)ascii_code);
+ bool is_dead = PGM_LOADBIT(ascii_to_dead_lut, (uint8_t)ascii_code);
+
+ if (is_shifted) {
+ register_code(KC_LSFT);
+ }
+ if (is_altgred) {
+ register_code(KC_RALT);
+ }
+ tap_code(keycode);
+ if (is_altgred) {
+ unregister_code(KC_RALT);
+ }
+ if (is_shifted) {
+ unregister_code(KC_LSFT);
+ }
+ if (is_dead) {
+ tap_code(KC_SPACE);
+ }
+} \ No newline at end of file
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