99 botellas en espanol

/* This is a rough spanish language translation of 99 bottles: http://pastebin.com/Y2BWcRRQ
 */

#include <stdio.h>
#include <string.h>

#define VERSE_1 "%s botella%s de cerveza en la pared, %s botella%s de cerveza.\n"
#define VERSE_2 "Tomar uno abajo, pasarlo alrededor, o, %s botella%s de cerveza en la pared.\n\n"
#define VERSE_3 "No mas botellas de cerveza en la pared, no mas botellas de cerveza.\n"
#define VERSE_4 "Ir a la tienda, comprar un poco mas, noventa y nueve botellas de cerveza en la pared.\n"
#define SEPARATOR " y "

const char *ones_dict[] = {"no mas", "uno", "dos", "tres", "cuatro", "sinco", "seis", "siete", "ocho", "nueve"};
const char *tens_dict[] = {0, 0, "veinta", "trenta", "cuarenta", "sincuenta", "seisenta", "setenta", "ochenta", "nueventa"};
const char *teens_dict[] = {"diez", "onse", "dose", "trese", "catorse", "quinse", "diez y seis", "diez y siete", "diez y ocho", "diez y nueve"};

void to_english(char *buf, int bottles);
int plural(int qty);
void write_verse(int bottles);

void
to_english(char *buf, int bottles)
{/*{{{*/
    int ones = bottles % 10,
        tens = (bottles - ones) / 10;

    if(bottles == 0){
        strncpy(buf, ones_dict[0], 30);
    } else if(tens == 0){
        strncpy(buf, ones_dict[ones], 30);
    } else if(tens == 1){
        strncpy(buf, teens_dict[ones], 30);
    } else if(ones == 0){
        strncpy(buf, tens_dict[tens], 30);
    } else {
        snprintf(buf, 30, "%s" SEPARATOR "%s", tens_dict[tens], ones_dict[ones]);
    }
}/*}}}*/

int
plural(int qty)
{/*{{{*/
    return qty != 1;
}/*}}}*/

void
write_verse(int bottles)
{/*{{{*/
    char numbuf[30] = "";

    to_english(numbuf, bottles);
    printf(VERSE_1, numbuf, plural(bottles) ? "s" : "", numbuf, plural(bottles) ? "s" : "");

    to_english(numbuf, bottles - 1);
    printf(VERSE_2, numbuf, plural(bottles - 1) ? "s" : "");

    if(bottles - 1 == 0){
        printf(VERSE_3 VERSE_4);
    }
}/*}}}*/

int
main()
{/*{{{*/
    int bottles = 99;

    while(bottles){
        write_verse(bottles);
        bottles--;
    }
}/*}}}*/