Re: [Dev-C++] Tokenize function

[Per W. <pw...@ia...>]

1) array is a private variable inside main(). If you want this array of
poinster to be initialized by a function call to tokenizar, then you must
send the array as a parameter, together with the information that it can
hold at most 50 words.

And you must also let the function tokenizar return the number of words it
found, so you know how many words to print.

But another thing. Do not ever (!) use gets() to read a string. Always use
fgets(). The reason is that gets() does not take the maximum size of the
input buffer as parameter, so if the input sentence is larger than 49
characters, you will get a buffer overrun.

If you use fgets(), it will end the input when the buffer is full. You can
then check if there is a '\n' (newline character) in the string, or if the
input string was too long.

/pwm

On Thu, 5 Mar 2009, Alexsandro Meireles wrote:

> Dear all,
>
> I have build a function to tokenize a sentence and to return the words in my
> main function. It seems ok, but it's not working the way I intend.
>
> The code is:
>
> main()
> {
>   char str[50];
>   char *array[50];
>   printf("Token 0.1\nDeveloped by Alexsandro Meireles\nType");
>   printf(" the sentence: ");
>   gets(str);
>   tokenizar(str);
>   printf("\n");
>   printf("Word #%d is %s\n",0, array[0]);   //PROBLEM IS HERE!!!!!
>   system("pause");
> }
>
>
> I need to have access to the words returned by the function tokenizar, but
> what I get as result, for example for "a casa pegou fogo." is:
>
> Word #0 is 'a'
> Word #1 is 'casa'
> Word #2 is 'pegou'
> Word #3 is 'fogo'
>
> AND THEN A LOOP
>
> Word #0 is Word #0 is Word #0 is Word #0 is ...
>
> IN OTHER WORDS, I CAN'T HAVE ACCESS TO THE ARRAY OF WORDS CREATED INSIDE
> 'tokenizar'.
>
> What am I doing wrong?
>
> Thanks in advance!
>
> --
> Prof. Dr. Alexsandro Meireles, linguist
> Federal University of Espírito Santo
> Departamento de Línguas e Letras
> Av. Fernando Ferrari, 514. Campus Universitário
> Goiabeiras. 29075-910
> Vitória-ES. Brazil
> mei...@gm...
> +55-27-41021734
>