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[Caml-list] stream conversion
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Date: 2003-12-10 (01:09)
From: Nicolas Cannasse <warplayer@f...>
Subject: Re: [Caml-list] stream conversion
> I have a need to convert a ``string stream'' to a ``char stream.''
> It's a little unclear to me how I'd accomplish this.  This is the best
> I've been able to come up with so far, but I have to imagine there's a
> prettier solution:

BTW, I don't know if you're using streams in a parser, but if you're using
them only as enumerations, you should consider using the Enum module instead
( Enum is part of the ExtLib : http://ocaml-lib.sourceforge.net )

One example of conversion of a string enum to a char enum :

open ExtString
let to_chars e =
    Enum.concat (Enum.map String.enum e)

I don't know about the Stream implementation, but Enum are purely
functional. That means there is no temporary "char list" or "char array"
created anywhere, only a int ref in a closure actually.

Nicolas Cannasse

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