Ingo,

Thanks for you reply. 

I dir not think about parse though I can see you solve it using it.

Parse yet has a not so confortable sintax to me so I try to avoid the
use of it most part of the time.

I'd like to have something just like I get in Visual Fox Pro. See below:

* ------------------------------------------
a = "aaa*aaa*aaa*aaa"

* gets the second ocurrence of "*" in the string from left to right
pos = at( "*" , a , 2) 

* then asking VFP to grab a piece of the string up to the 
* second "*" in the string a
? left(a,pos)

* gives the result
aaa*aaa*
* -------------------------------------------

Would it be very nice to have an AT-like native function in
REBOL/Core, don't you think so?




On Tue, 18 Jan 2005 23:38:43 +0900, Ingo Hohmann <[EMAIL PROTECTED]> wrote:
> 
> Hi Carlos,
> 
> here are the first 4 ideas I got
> 
>  >> profiler/test [index? find next find str #"*" #"*"] 100000
> 
> == [0:00:00.213723]
>  >> profiler/test [parse str [2 [thru "*"] here: (pos: subtract index?
> here 1)]] 100000
> == [0:00:00.156568]
>  >> profiler/test [parse str [2 [thru #"*"] here: (pos: subtract index?
> here 1)]] 100000
> == [0:00:00.14909]
>  >> profiler/test [parse str [thru #"*" to #"*" here: (pos: index? here
> )]] 100000
> == [0:00:00.106628]
> 
> As you'll clearly notice, parse is your friend ;0)
> 
> I hope that helps
> 
> Ingo
> 
> Carlos Lorenz wrote:
> > Hi list,
> >
> > Suppose I have  str: "aaa*aaa*aaa*aaa"
> >
> > Wich is the best way to get the position of second "*" at word str?
> >
> >
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> 
> 


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