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Date: Wed, 25 Aug 2010 21:19:38 +0200
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
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Newsgroups: comp.lang.ada
Subject: Re: S-expression I/O in Ada
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Date: 2010-08-25T21:19:39+02:00
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On 25.08.10 20:55, Simon Wright wrote:
> Georg Bauhaus <rm-host.bauhaus@maps.futureapps.de> writes:
> 
>> To store data, keep the List type, but store objects inside a map.
> 
> This would mean that the order in which data is accessed isn't the order
> in which it was received.

Why not? If reading appends to a list stored at
the current key which lives on top of a stack?

(A B (C D E) F)

'(' ~> push key_1     -- First key will be returned

key_1 : A B key_2     -- '(' ~> push key_2
key_2 : C D E         -- ')' ~> pop (key_1 on top)
 |
 v
key_1 : A B key_2 F   -- ')' ~> pop (stack empty)
key_2 : C D E

First_Key := key_1;
return;

Georg