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

[Diego Jacobi <jacobidiego gmail com>]

Why isnt string = GString ?
In my application i only need an string of ascii chars and return 2
strings of the same type (that is why the pointers), so i should use
StringBuilder instead of strings?
Also i am courius why is it called StringBuilder? It sound like "not a GString".



2009/4/19 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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