RE: strtok

Scott,

Usually, I follow what you are doing.  However, the following has me
scratching my head:
>           //
>           // Or, perhaps just dump all tokens to an array
>           //
> 
>           x = 0;
>           tokens(*) = gettok( blah : '|' : x );

How does this load the array?  Doesn't gettok() only return one token?

Thanks,
Charles



> -----Original Message-----
> From: Scott Klement [mailto:rpg400-l@xxxxxxxxxxxxxxxx]
> Sent: Wednesday, August 18, 2004 1:52 PM
> To: RPG programming on the AS400 / iSeries
> Subject: Re: strtok
> 
> 
> 
> In fact, since it won't take any significant time, here... 
> I'll write one
> for you:
> 
>      H DFTACTGRP(*NO)
> 
>      D gettok          PR          1024A   varying
>      D   string                   65535A   varying const 
> options(*varsize)
>      D   delims                      50A   varying const
>      D   pos                         10I 0
> 
>      d blah            s            100A   varying
>      D tokens          s            100A   varying dim(50)
>      D x               s             10I 0
>      D y               s             10I 0
> 
>      D msg             s             52A
> 
>       /free
> 
>           Blah = 'Test||||||123|x|||8900';
>           x = 0;
>           y = 0;
> 
>           //
>           //  Get each token from the string and DSPLY it
>           //
> 
>           dow ( x <= %len(blah) );
>              y = y + 1;
>              msg = 'token ' + %char(y) + '='
>                  + gettok( blah : '|' : x );
>              dsply msg;
>           enddo;
> 
>           //
>           // Or, perhaps just dump all tokens to an array
>           //
> 
>           x = 0;
>           tokens(*) = gettok( blah : '|' : x );
> 
>           for y = 1 to %elem(tokens);
>              msg = 'elem ' + %char(y) + '=' + tokens(y);
>              dsply msg;
>           endfor;
> 
>           *inlr = *on;
> 
>       /end-free
> 
> 
> 
> 
>       *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>       * gettok():  Get next token from string
>       *
>       *     string = (input) string to search
>       *     delims = (input) delimiters
>       *        pos = (i/o) next position to search.  At the start
>       *                    of a string, set this to zero.  Pass
>       *                    it on subsequent calls to remember where
>       *                    you left off.
>       *
>       * Returns the token found.
>       *+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>      P gettok          B
>      D gettok          PI          1024A   varying
>      D   string                   65535A   varying const 
> options(*varsize)
>      D   delims                      50A   varying const
>      D   pos                         10I 0
> 
>      D res             s           1024A   varying
>      D start           s             10I 0
>      D c               s              1A
> 
>       /free
> 
>           start = pos + 1;
>           %len(res) = 0;
> 
>           for pos = start to %len(string);
> 
>              c = %subst(string:pos:1);
> 
>              if %check(delims:c) = 1;
>                 res = res + c;
>              else;
>                 leave;
>              endif;
> 
>           endfor;
> 
>           return res;
> 
>       /end-free
>      P                 E