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From: kolbjorn.aambo@ub.uio.no (Kolbjørn Aambø)
Newsgroups: comp.lang.beta
Subject: Re: Templates
Date: 17 Oct 1995 07:47:50 GMT
Organization: University of Oslo Library
Lines: 75
Message-ID: <kolbjorn.aambo-1710950848350001@129.240.37.116>
References: <kolbjorn.aambo-1610951219380001@129.240.37.116> <EERNST.95Oct16232633@fraxinus.daimi.aau.dk>
NNTP-Posting-Host: ubmac86.uio.no

In article <EERNST.95Oct16232633@fraxinus.daimi.aau.dk>,
eernst@fraxinus.daimi.aau.dk (Erik Ernst) wrote:

> In article <kolbjorn.aambo-1610951219380001@129.240.37.116>
kolbjorn.aambo@ub.uio.no (Kolbjørn Aambø) writes:
> 
>    C++'s tool for creating tempates seems like a powerful tool to
>    generate better libraries. 
> 
>    [snip]
> 
>    Have the originators of Beta experimented with the idea of
>    introducing templates to the language?
> 
> Not in any way claiming to belong to that group of people ..
> 
> My point in this article is: the problems solvable by using (some sort
> of) templates _are already solved_ in BETA today.  The basic idea is
> to parameterize a pattern with one or more types (corresponding to the
> type arguments to templates) by using virtuals: 
> 
> 
> list: 
>    (# element:< object; (* this is a "type parameter" *)
>       append:< (# elem: ^element; enter elem[] do ... #);
>       ...
>    #);
> 
> personList: list(# element::< person #); (* usage, i.e. "instantiation" *)
> 
> 

Well so some kind of STL like construction is then probaly already made even in
a persistent version?

> 
> 
>    Have the people behind Beta considered to introduce a UNICODE as the
>    characterset in the language.
> 
> 
> This would be very interesting, indeed!  It would be quite enchanting
> to write code like 
> 
> Øllebrød: vælling
>    (# 
>    do ...
>    #);
> 
 Well that was not what I hoped for:

What I hoped for was a dynamic text implementation that could deal with 
UNICODE 16-bit characters without adding endian problems. Additionally
I was hoping for a customisable sort order for that charater set.

Since development goes so slowly I am quite able to change language to
get something done easier.

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