Michael Van Canneyt wrote:
After a first read, looks OK. You seem to have thought of everything
that needs to be described, except maybe extraction of a single element:
b : tuple of (integer, integer);
a : integer;
begin
b:=(1,2);
a:=b[0]; // a = 1 after this.
end;
In this sense, it seems more like an array of const than as a record.
I would not do the extensions. The tuple is simply a logical, immutable
grouping of values.
I would also not allow operators other than := <> and =, because in
expressions,
when encountering a (, it is not clear what is meant.
But provided that single-element tuples aren't allowed there'll be a
recognisable comma.
--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk
[Opinions above are the author's, not those of his employers or colleagues]
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