morse

#include <stdio.h>
#include <stdlib.h>
#define DASH 1
#define DOT  2
#define END  3

int map[26][5] = {
    {DOT,    DASH,   END},                  // A
    {DASH,   DOT,    DOT,    DOT,    END},  // B
    {DASH,   DOT,    DASH,   DOT,    END},  // C
    {DASH,   DOT,    DOT,    END        },  // D
    {DOT,    END                        },  // E
    {DOT,    DOT,    DASH,   DOT,    END},  // F
    {DASH,   DASH,   DOT,    END        },  // G
    {DOT,    DOT,    DOT,    DOT,    END},  // H
    {DOT,    DOT,    END                },  // I
    {DOT,    DASH,   DASH,   DASH,   END},  // J
    {DASH,   DOT,    DASH,   END        },  // K
    {DOT,    DASH,   DOT,    DOT,    END},  // L
    {DASH,   DASH,   END                },  // M
    {DASH,   DOT,    END                },  // N
    {DASH,   DASH,   DASH,   END        },  // O
    {DOT,    DASH,   DASH,   DOT,    END},  // P
    {DASH,   DASH,   DOT,    DASH,   END},  // Q
    {DOT,    DASH,   DOT,    END        },  // R
    {DOT,    DOT,    DOT,    END        },  // S
    {DASH,   END                        },  // T
    {DOT,    DOT,    DASH,   END        },  // U
    {DOT,    DOT,    DOT,    DASH,   END},  // V
    {DOT,    DASH,   DASH,   END        },  // W
    {DASH,   DOT,    DOT,    DASH,   END},  // X
    {DASH,   DOT,    DASH,   DASH,   END},  // Y
    {DASH,   DASH,   DOT,    DOT,    END}   // Z
};

void printToMorse(char* text) {

    char k;
    int i = 0;
    while ((k = *(text+i)) != '\0') {

        if (k == ' ') {
            printf("\t");
            i++;
            continue;
        }

        if (isalnum(k) == 0) {
            i++;
            continue;
        }

        k = toupper(k);
        int letterIndex = (int) k - 65;

        int j = 0;
        while (1) {
            int bit = map[letterIndex][j];
            if (bit == DASH) {
                printf("-");
            }
            if (bit == DOT) {
                printf(".");
            }
            if (bit == END) {
                break;
            }

            j++;
        }

        printf("  ");

        i++;
    }

    printf("\n");
}

int main()
{

    char tekst[] = "Hello world!";
    printToMorse(tekst);

    return 0;
}