From 99c2c7d5320a5f7e56217885d681dd3b1e179bc6 Mon Sep 17 00:00:00 2001
From: Mark <mark@betalupi.com>
Date: Wed, 10 Aug 2022 09:07:04 -0700
Subject: [PATCH] Added special character command

---
 src/commands.h | 64 ++++++++++++++++++++++++++++++++++++--------------
 src/main.cpp   | 59 +++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 103 insertions(+), 20 deletions(-)

diff --git a/src/commands.h b/src/commands.h
index 7b07c58..751fba4 100644
--- a/src/commands.h
+++ b/src/commands.h
@@ -1,5 +1,8 @@
 #pragma once
 
+
+
+
 // Sent by host when connection is initiated.
 //
 // Packet structure:
@@ -7,6 +10,9 @@
 // # of Bytes:	|  1  |
 #define CMD_HELLO 0x00
 
+
+
+
 // Sent periodically by host to test connection.
 // Keyboard should ignore this command.
 //
@@ -15,6 +21,9 @@
 // # of Bytes:	|  1  |
 #define CMD_RUTHERE 0x01
 
+
+
+
 // Send keyboard state to host.
 //
 // Packet structure:
@@ -39,23 +48,8 @@
 // 0x01: russian
 #define CMD_SEND_STATE 0x02
 
-// Sent by keyboard to host when a complete word is typed.
-// Host checks if this is a known word.
-// If it is not, host responds with the same CMD (see below).
-//
-// Packet structure (sent by keyboard):
-// Data:		| cmd | word length |  keycodes  |
-// # of Bytes:	|  1  |      1      |     ?      |
-//
-// word length: number of bytes in `keycodes` block
-//
-//
-// Packet structure (sent by host):
-// Data:		| cmd | typo? |
-// # of Bytes:	|  1  |   1   |
-//
-// typo: If this is 0x01, the word we got was a typo.
-#define CMD_SPELLCHECK_WORD 0x04
+
+
 
 // Animation data. Sent by host.
 //
@@ -74,3 +68,39 @@
 // Data segment consists of 10 bits, each representing the height of a column.
 // Minimum height is 0, maximum is 250.
 #define CMD_ANIM_DATA_fft 0x00
+
+
+
+
+// Sent by keyboard to host when a complete word is typed.
+// Host checks if this is a known word.
+// If it is not, host responds with the same CMD (see below).
+//
+// Packet structure (sent by keyboard):
+// Data:		| cmd | word length |  keycodes  |
+// # of Bytes:	|  1  |      1      |     ?      |
+//
+// word length: number of bytes in `keycodes` block
+//
+//
+// Packet structure (sent by host):
+// Data:		| cmd | typo? |
+// # of Bytes:	|  1  |   1   |
+//
+// typo: If this is 0x01, the word we got was a typo.
+#define CMD_SPELLCHECK_WORD 0x04
+
+
+
+
+// Sent by host when a "special char" key is pressed.
+// Handled by host interface.
+//
+// Packet structure:
+// Data:		| cmd | character |
+// # of Bytes:	|  1  |     2     |
+//
+// character:
+// uint16_t, character id
+//
+#define CMD_SPECIAL_CHAR 0x05
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index b825573..1f1ded8 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -318,6 +318,36 @@ char ru_kc_to_char(uint8_t keycode) {
 }
 
 
+std::string special_chars[] = {
+
+	// Usual characters
+	"\\`",
+	"~",
+	"'",
+	"[",
+	"]",
+	"{",
+	"}",
+	"«",
+	"»",
+
+	// Special characters
+	"Ѧ",
+	"Ѫ",
+	"Ԙ",
+	"¯\\_(ツ)_/¯"
+};
+
+// Ѧ ѧ		little yus
+// Ѫ ѫ		big yus
+// Ѩ ѩ		iotified
+// Ѭ ѭ		iotofied
+// Ԙ		yae
+//
+// 🙃	upside-down
+// 😁	big grin
+// 🙄	rolling eyes
+
 int main(int argc, char *argv[]) {
 
 	Hunspell* hun = new Hunspell(HUNSPELL_AFF_EN, HUNSPELL_DIC_EN);
@@ -417,8 +447,8 @@ int main(int argc, char *argv[]) {
 			if (Dox.read()) {
 				uint8_t cmd = Dox.read_buf[0];
 
-				switch(cmd) {
-					case CMD_SPELLCHECK_WORD:
+				switch (cmd) {
+					case CMD_SPELLCHECK_WORD: {
 						char word_chars[Dox.read_buf[1] + 1];
 
 						if (Dox.get_layer_layout() == LAYOUT_EN) {
@@ -440,13 +470,36 @@ int main(int argc, char *argv[]) {
 						if (!dp) {
 							hid_buf[0] = 0x01;
 							Dox.write(CMD_SPELLCHECK_WORD, hid_buf, Dox.packet_size);
-							spdlog::info("Got typo: \"{0:s}\" not in dict", word);
+							//spdlog::info("Got typo: \"{0:s}\" not in dict", word);
 						}
 
 						break;
+					}
+
+					case CMD_SPECIAL_CHAR: {
+						// Bytes 1,2: char id
+						uint16_t char_id =
+							(Dox.read_buf[2] << 8) |
+							(Dox.read_buf[1] << 0);
+
+						spdlog::info("{0:d}", char_id);
+
+						if (char_id < (sizeof(special_chars) / sizeof(std::string)) ) {
+							std::system(
+								(
+									std::string("xdotool type \"") +
+									special_chars[char_id] +
+									std::string("\"")
+								).c_str()
+							);
+						}
+						break;
+					}
 				}
 			}
 
+
+			// Switch layer if necessary.
 			if (
 				(last_layer_layout != Dox.get_layer_layout()) &&
 				(Dox.get_layer_layout() != LAYOUT_NULL)