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From: Donal K. Fellows on 13 Apr 2010 11:05
On 12 Apr, 17:05, "tom.rmadilo" <tom.rmad...(a)gmail.com> wrote:
> In Tcl you don't sort arrays, you sort lists. Tcl Arrays do not have
> an ordered representation, they just have an interface.

But dictionaries can have an ordered representation (unless you're
using the ones from before 8.5.0).

Donal.
From: tom.rmadilo on 13 Apr 2010 11:54
On Apr 13, 8:05 am, "Donal K. Fellows"
<donal.k.fell...(a)manchester.ac.uk> wrote:
> On 12 Apr, 17:05, "tom.rmadilo" <tom.rmad...(a)gmail.com> wrote:
>
> > In Tcl you don't sort arrays, you sort lists. Tcl Arrays do not have
> > an ordered representation, they just have an interface.
>
> But dictionaries can have an ordered representation (unless you're
> using the ones from before 8.5.0).

This feature doesn't help you sort, and unless you do two sorts, first
on values then on keys, the end result will depend on the order of the
original dictionary. With dictionaries you also could have an issue
with keys that have multiple values. If multiple values are allowed
per key, sorting a dictionary will be impossible, but a list of {key
value} lists is covered by the same code given above.

Dictionaries have the unique feature of allowing a nested key search.
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