Re: [Vala] Starting with Vala, problems with strings

[Yu Feng <rainwoodman gmail com>]

Hi Diego,

private static int my_string_handler(string str)/*no '*'*/ {
....

}

If possible use unichar, string.next_char, string.get_char, to
manipulate string is better than directly access the char by its
location because all strings are utf8 encoded.

StringBuilder sb = new StringBuilder("");
for(weak string s = str; s.get_char()!=0; s = s.next_char()) {
 unichar c = s.get_char();
 if(c != '+') sb.append_unichar(c);
 else {
   ....
   
   break;
 }
}

Yu
On Sun, 2009-04-19 at 20:39 +0200, Diego Jacobi wrote:
> Hi.
> This may be a too much newbie question, but:
> How do you access a character in a string?
>
>     private static int my_string_handler(string *str)
>     {
>     string s;
>     for (x = 0 ; x < str->len() ; x++)
>         {
>         if (str[x]=='+')
>              {
>              s = str->substring(0,x);
>              stdout.printf("plus finded at = %d,   left string ist %s\n", x, s);
>              return 0;
>               }
> }
> return -1;
> }
>
> This prints an error saying that str is not an array.
> I cant find anything on the docs an example on how to manipulate
> strings char by char.
>
> Cheers.
> Diego
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