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#include "morse.h"
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <ctype.h>
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#include <limits.h>
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#include <stdlib.h>
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#define NUM_OF_SYMBOLS 65
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static const char SYMBOLS[NUM_OF_SYMBOLS] = {
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'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
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'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
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'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
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' ', '!'};
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// 7 spaces are needed to store the null terminator with the extended symbols :)
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// C is fun?
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static const char MORSE[NUM_OF_SYMBOLS][7] = {
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// A-Z
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".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..",
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// a-z (same as above, but needed twice due to design choices)
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".-", "-...", "-.-.", "-..", ".", "..-.", "--.", "....", "..", ".---", "-.-", ".-..", "--", "-.", "---", ".--.", "--.-", ".-.", "...", "-", "..-", "...-", ".--", "-..-", "-.--", "--..",
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// 0-9
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".----", "..---", "...--", "....-", ".....", "-....", "--...", "---..", "----.", "-----",
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// space
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"/",
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// exclamation mark
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"-.-.--"};
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// This function returns a pointer to the morse code written above.
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// The genuis of this function feels amazing because I've never used C before, but I see why
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// ... it's used for performence!
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//
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// I do not copy ANY data. The pointer returned points to the above array!
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const char* char_to_morse(char letter){
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const char* result_ptr;
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bool result_set = false;
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for (int i = 0; i < NUM_OF_SYMBOLS; i++){
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if (letter == SYMBOLS[i]){
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result_ptr = MORSE[i];
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result_set = true;
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}
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}
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if (!result_set){
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result_ptr = "";
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}
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return result_ptr;
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}
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char* string_to_morse(char* string){
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int string_len = strlen(string);
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// worse possible case is 8 times the length (assuming all numbers/punctuation, and adding spaces)
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char result[string_len*8];
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char* result_ptr = result;
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// sets everything to null in the string, just in case there was data there previously.
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strcpy(result, "");
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for (int i = 0; i < string_len; i++){
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strcat(result, char_to_morse(string[i]));
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if (i != string_len-1){
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strcat(result, " ");
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}
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}
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return result_ptr;
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}
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char *multi_tok(char *input, char *delimiter) {
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static char *string;
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if (input != NULL)
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string = input;
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if (string == NULL)
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return string;
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char *end = strstr(string, delimiter);
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if (end == NULL) {
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char *temp = string;
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string = NULL;
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return temp;
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}
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char *temp = string;
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*end = '\0';
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string = end + strlen(delimiter);
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return temp;
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}
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void print_single_morse(char charToMorse, bool isSlow, bool addLetter, long dotDelay, long dashDelay){
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int sizeOfMorseCode;
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bool isConvertable = false;
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char convertedTo[6];
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// Loop through every character in the list of letters
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for (int j = 0; j < NUM_OF_SYMBOLS; j++){
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// If the character in the input string matches the character the character from the list
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if (charToMorse == SYMBOLS[j]){
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strcpy(convertedTo, MORSE[j]);
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sizeOfMorseCode = strlen(MORSE[j]);
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isConvertable = true;
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}
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}
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if (addLetter){
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printf("(%c)", charToMorse);
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}
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if (isConvertable){
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if (isSlow){
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// loop through all the characters in the morse string
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for (int i = 0; i < strlen(convertedTo); i++){
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printf("%c", convertedTo[i]);
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// flush buffer to force visible slow writing
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fflush(stdout);
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if (convertedTo[i] == '-'){
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// usleep is a microseconds
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usleep(dashDelay);
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} else if (convertedTo[i] == '.'){
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usleep(dotDelay);
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}
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}
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// print a space after the squence of morse code characters
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printf(" ");
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// if not slow
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} else {
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printf("%s ", convertedTo);
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}
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// if not convertable
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} else {
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if (charToMorse == '-' || charToMorse == '.'){
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} else {
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printf("%c", charToMorse);
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}
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}
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}
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void print_morse(char* strToMorse, bool isSlow, bool addLetter, long dotDelay, long dashDelay){
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int sizeOfInputString;
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sizeOfInputString = strlen(strToMorse);
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// Loop through every character in the input string
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for (int i = 0; i < sizeOfInputString; i++){
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print_single_morse(strToMorse[i], isSlow, addLetter, dotDelay, dashDelay);
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}
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}
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void reverse_morse(char* morseToNormalize){
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bool isConvertable = false;
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char convertedChar;
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// go through every morse encoding
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for (int i = 0; i < NUM_OF_SYMBOLS; i++){
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// if the morse code is euqal to the input string
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if (strcmp(MORSE[i], morseToNormalize) == 0){
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isConvertable = true;
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convertedChar = SYMBOLS[i];
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}
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}
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if (isConvertable){
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printf("%c", convertedChar);
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// if not convertable to a normal character [A-Z0-9] print the character the stirng the way it is.
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} else {
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printf("%s", morseToNormalize);
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}
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}
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