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cwmorse.h
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cwmorse.h
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/* -*- mode: c++; tab-width: 8 -*- */
/*
* hasak (ham and swiss army knife) keyer for Teensy 4.X, 3.X
* Copyright (c) 2021 by Roger Critchlow, Charlestown, MA, USA
* ad5dz, rec@elf.org
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice, development funding notice, and this permission
* notice shall be included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
// Morse code for ASCII characters 33 - 90, from ITU-R M.1677-1
// read from bit0 to bit7
// 0 = dot, 1 = dash
// highest bit set indicated end-of-character (not to be sent as a dash!)
// borrowed from Christoph's keyer, along with the decoding code
// https://github.com/dl1ycf/TeensyWinkeyEmulator
//
// 0x01 is a nul, a character that is not coded
// it's also the end state of decoding a character.
// void decode(uint8_t code, char buffer[8]) {
// int i = 0;
// while (code != 1) {
// buffer[i++] = code & 1 ? '-' : '.';
// code >>= 1;
// }
// buffer[i] = 0;
// }
// uint8_t encode(const char *buffer) {
// int i = 0;
// uint8_t code = 1;
// while (buffer[i] != 0) i += 1;
// while (--i >= 0) {
// code <<= 1;
// code |= buffer[i] == '-' ?
// }
// return code;
// }
//
//
// A map of the implemented morse code
// The symbols on the left are implemented
// if their position on the right contains +
//
// 2 3 4 5 6 7 2 3 4 5 6 7
// ------------- -------------
// 0: 0 @ P ` p 0: + + + + +
// 1: ! 1 A Q a q 1: + + + + +
// 2: " 2 B R b r 2: + + + + + +
// 3: # 3 C S c s 3: + + + + +
// 4: $ 4 D T d t 4: + + + + +
// 5: % 5 E U e u 5: + + + + +
// 6: & 6 F V f v 6: + + + + +
// 7: ' 7 G W g w 7: + + + + + +
// 8: ( 8 H X h x 8: + + + + + +
// 9: ) 9 I Y i y 9: + + + + + +
// A: * : J Z j z A: + + + + +
// B: + ; K [ k { B: + + + {
// C: , < L \ l | C: + + + |
// D: - = M ] m } D: + + + + }
// E: . > N ^ n ~ E: + + + ~
// F: / ? O _ o DEL F: + + + + DEL
//
// other combinations can be coded as prosigns
// using the ESC character, \033, or the backslash
// character, \. hasak allows multiple escapes, so
// \\imi generates ?.
//
#ifdef __cplusplus
extern "C" {
#endif
#define MORSE_NIL 0x01 // no character
#define MORSE_A 0x06 // A .-
#define MORSE_B 0x11 // B .---
#define MORSE_C 0x15 // C -.-.
#define MORSE_D 0x09 // D -..
#define MORSE_E 0x02 // E .
#define MORSE_F 0x14 // F ..-.
#define MORSE_G 0x0b // G --.
#define MORSE_H 0x10 // H ....
#define MORSE_I 0x04 // I ..
#define MORSE_J 0x1e // J .---
#define MORSE_K 0x0d // K -.-
#define MORSE_L 0x12 // L .-..
#define MORSE_M 0x07 // M --
#define MORSE_N 0x05 // N -.
#define MORSE_O 0x0f // O ---
#define MORSE_P 0x16 // P .--.
#define MORSE_Q 0x1b // Q --.-
#define MORSE_R 0x0a // R .-.
#define MORSE_S 0x08 // S ...
#define MORSE_T 0x03 // T -
#define MORSE_U 0x0c // U ..-
#define MORSE_V 0x18 // V ...-
#define MORSE_W 0x0e // W .--
#define MORSE_X 0x19 // X -..-
#define MORSE_Y 0x1d // Y -.--
#define MORSE_Z 0x13 // Z --..
#define MORSE_0 0x3f // 0 -----
#define MORSE_1 0x3e // 1 .----
#define MORSE_2 0x3c // 2 ..---
#define MORSE_3 0x38 // 3 ...--
#define MORSE_4 0x30 // 4 ....-
#define MORSE_5 0x20 // 5 .....
#define MORSE_6 0x21 // 6 -....
#define MORSE_7 0x23 // 7 --...
#define MORSE_8 0x27 // 8 ---..
#define MORSE_9 0x2f // 9 ----.
#define MORSE_DQUOTE 0x52 // " .-..-.
#define MORSE_SQUOTE 0x5e // ' .----.
#define MORSE_LPAREN 0x36 // ( -.--.
#define MORSE_RPAREN 0x6d // ) -.--.-
#define MORSE_PLUS 0x2a // + .-.-.
#define MORSE_COMMA 0x73 // , --..--
#define MORSE_MINUS 0x61 // - -....-
#define MORSE_PERIOD 0x6A // . .-.-.-
#define MORSE_SLASH 0x29 // / -..-.
#define MORSE_COLON 0x78 // : ---...
#define MORSE_EQUAL 0x31 // = -...-
#define MORSE_QUERY 0x4c // ? ..--..
#define MORSE_ATSIGN 0x56 // @ .--.-.
/* Additional characters defined by Winkeyer
filtered to those not already in ITU-R M.1677-1
and to those that are actually defined as something
| ASCII | Hex | Prosign |
| ' ' | 0x20 | (space) |
| '$' | 0x24 | SX |
| ':' | 0x3A | KN | contra-ITU
| ';' | 0x3B | AA |
| '<' | 0x3C | AR | dups PLUS
| '>' | 0x3E | SK | sometimes ASTERISK
| '[' | 0x5B | AS |
| '\' | 0x5C | DN |
| ']' | 0x5D | KN | dups LPAREN
| '|' | 0x7C |(½ dit pad)|
*/
static const unsigned char cwmorse[64] = {
MORSE_NIL, //33 ! not in ITU-R M.1677-1
MORSE_DQUOTE, //34 " .-..-.
MORSE_NIL, //35 # not in ITU-R M.1677-1
MORSE_NIL, //36 $ not in ITU-R M.1677-1
MORSE_NIL, //37 % not in ITU-R M.1677-1
MORSE_NIL, //38 & not in ITU-R M.1677-1
MORSE_SQUOTE, //39 ' .----.
MORSE_LPAREN, //40 ( -.--.
MORSE_RPAREN, //41 ) -.--.-
MORSE_NIL, //42 * not in ITU-R M.1677-1
MORSE_PLUS, //43 + .-.-.
MORSE_COMMA, //44 , --..--
MORSE_MINUS, //45 - -....-
MORSE_PERIOD, //46 . .-.-.-
MORSE_SLASH, //47 / -..-.
MORSE_0, //48 0 -----
MORSE_1, //49 1 .----
MORSE_2, //50 2 ..---
MORSE_3, //51 3 ...--
MORSE_4, //52 4 ....-
MORSE_5, //53 5 .....
MORSE_6, //54 6 -....
MORSE_7, //55 7 --...
MORSE_8, //56 8 ---..
MORSE_9, //57 9 ----.
MORSE_COLON, //58 : ---...
MORSE_NIL, //59 ; not in ITU-R M.1677-1
MORSE_NIL, //60 < not in ITU-R M.1677-1
MORSE_EQUAL, //61 = -...-
MORSE_NIL, //62 > not in ITU-R M.1677-1
MORSE_QUERY, //63 ? ..--..
MORSE_ATSIGN, //64 @ .--.-.
MORSE_A, //65 A .-
MORSE_B, //66 B .---
MORSE_C, //67 C -.-.
MORSE_D, //68 D -..
MORSE_E, //69 E .
MORSE_F, //70 F ..-.
MORSE_G, //71 G --.
MORSE_H, //72 H ....
MORSE_I, //73 I ..
MORSE_J, //74 J .---
MORSE_K, //75 K -.-
MORSE_L, //76 L .-..
MORSE_M, //77 M --
MORSE_N, //78 N -.
MORSE_O, //79 O ---
MORSE_P, //80 P .--.
MORSE_Q, //81 Q --.-
MORSE_R, //82 R .-.
MORSE_S, //83 S ...
MORSE_T, //84 T -
MORSE_U, //85 U ..-
MORSE_V, //86 V ...-
MORSE_W, //87 W .--
MORSE_X, //88 X -..-
MORSE_Y, //89 Y -.--
MORSE_Z, //90 Z --..
MORSE_NIL, //91 [ not in ITU-R M.1677-1
MORSE_NIL, //92 \ not in ITU-R M.1677-1
MORSE_NIL, //93 ] not in ITU-R M.1677-1
MORSE_NIL, //94 ^ not in ITU-R M.1677-1
MORSE_NIL, //95 _ not in ITU-R M.1677-1
MORSE_NIL //96 ` not in ITU-R M.1677-1
};
#ifdef __cplusplus
}
#endif