gistfile1.cpp

/* Code: */
#include <ctype.h>

#define speed 35
#define word_time (speed * 3)
#define short_time (speed)
#define long_time (speed * 3)
#define space_time (speed * 7)
#define letter_pause (speed * 3)
#define long_pin 12
#define short_pin 13
#define DIT (blink(short_pin, short_time, letter_pause))
#define DOT (blink(long_pin, long_time, letter_pause))
#define WORDSEP (delay(space_time))
#define MESSAGE "Hello, world"

void blink(int pin, int duration, int pause);

char *morse[133]; /* XXX */
morse['A'] = "sl";
morse['B'] = "lsss";
morse['C'] = "lsls";
morse['D'] = "lss";
morse['E'] = "s";
morse['F'] = "ssls";
morse['G'] = "lls";
morse['H'] = "ssss";
morse['I'] = "ss";
morse['J'] = "slll";
morse['K'] = "lsl";
morse['L'] = "slss";
morse['M'] = "ll";
morse['N'] = "ls";
morse['O'] = "lll";
morse['P'] = "slls";
morse['Q'] = "llsl";
morse['R'] = "sls";
morse['S'] = "sss";
morse['T'] = "l";
morse['U'] = "ssl";
morse['V'] = "sssl";
morse['W'] = "sll";
morse['X'] = "lssl";
morse['Y'] = "lsll";
morse['Z'] = "llss";
morse['1'] = "sllll";
morse['2'] = "sslll";
morse['3'] = "sssll";
morse['4'] = "ssssl";
morse['5'] = "sssss";
morse['6'] = "lssss";
morse['7'] = "llsss";
morse['8'] = "lllss";
morse['9'] = "lllls";
morse['0'] = "lllll";

void setup() {
  pinMode(short_pin, OUTPUT);
  pinMode(long_pin, OUTPUT);
}

void blink(int pin, int duration, int pause) {
  digitalWrite(pin, HIGH);
  delay(duration);
  digitalWrite(pin, LOW);
  delay(pause);
}

void loop() {
    char *c;
    for (c = MESSAGE; *c != '\0'; c++) { /* Loop through message to send */
        if (*c == ' ') {
            WORDSEP;
            continue;
        }
        else if (isalnum(*c)) { /* Serializable as Morse */
            char *j;
            for (j = morse[toupper(*c)]; *j != '\0'; j++) {
                if (*j == 'l') {
                    DOT;
                }
                else {
                    DIT;
                }
            }
        }
    }
    delay(2000);
}
                            
/* output from Arduino IDE:
morse.cpp:23:1: error: ‘morse’ does not name a type
morse.cpp:24:1: error: ‘morse’ does not name a type
morse.cpp:25:1: error: ‘morse’ does not name a type
morse.cpp:26:1: error: ‘morse’ does not name a type
morse.cpp:27:1: error: ‘morse’ does not name a type
morse.cpp:28:1: error: ‘morse’ does not name a type
morse.cpp:29:1: error: ‘morse’ does not name a type
morse.cpp:30:1: error: ‘morse’ does not name a type
morse.cpp:31:1: error: ‘morse’ does not name a type
morse.cpp:32:1: error: ‘morse’ does not name a type
morse.cpp:33:1: error: ‘morse’ does not name a type
morse.cpp:34:1: error: ‘morse’ does not name a type
morse.cpp:35:1: error: ‘morse’ does not name a type
morse.cpp:36:1: error: ‘morse’ does not name a type
morse.cpp:37:1: error: ‘morse’ does not name a type
morse.cpp:38:1: error: ‘morse’ does not name a type
morse.cpp:39:1: error: ‘morse’ does not name a type
morse.cpp:40:1: error: ‘morse’ does not name a type
morse.cpp:41:1: error: ‘morse’ does not name a type
morse.cpp:42:1: error: ‘morse’ does not name a type
morse.cpp:43:1: error: ‘morse’ does not name a type
morse.cpp:44:1: error: ‘morse’ does not name a type
morse.cpp:45:1: error: ‘morse’ does not name a type
morse.cpp:46:1: error: ‘morse’ does not name a type
morse.cpp:47:1: error: ‘morse’ does not name a type
morse.cpp:48:1: error: ‘morse’ does not name a type
morse.cpp:49:1: error: ‘morse’ does not name a type
morse.cpp:50:1: error: ‘morse’ does not name a type
morse.cpp:51:1: error: ‘morse’ does not name a type
morse.cpp:52:1: error: ‘morse’ does not name a type
morse.cpp:53:1: error: ‘morse’ does not name a type
morse.cpp:54:1: error: ‘morse’ does not name a type
morse.cpp:55:1: error: ‘morse’ does not name a type
morse.cpp:56:1: error: ‘morse’ does not name a type
morse.cpp:57:1: error: ‘morse’ does not name a type
morse.cpp:58:1: error: ‘morse’ does not name a type
*/