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[Caml-list] Re: "ocaml_beginners"::[] string to list
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Date: -- (:)
From: Brian Hurt <brian.hurt@q...>
Subject: Re: [Caml-list] Re: "ocaml_beginners"::[] string to list
On Mon, 17 Feb 2003, Issac Trotts wrote:

> Christian Schaller wrote:
> 
> >Hi everyone!
> >
> >I'm trying to find a built in function for converting a string to a list of
> >characters, similar to SML's explode.  Is something like this available?
> >
> >Thank you!
> >
> >- Chris
> >
> # let explode s =
>    let n = String.length s in
>    let rec aux k = if k = n then [] else s.[k] :: aux (k+1) in
>    aux 0;;
>       val explode : string -> char list = <fun>
> # explode "foo";;
> - : char list = ['f'; 'o'; 'o']
> 

let explode s = 
    let n = String.length s in
    let rec aux k accum = if k = n then (List.rev accum) 
                          else aux (k+1) (s.[k] :: accum)
    in
    aux 0 []
;;

See previous discussion.

Brian


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