tuple.index()

[Nick Maclaren]

In article <4uslgfF18sq18U1 at mid.individual.net>,
greg <greg at cosc.canterbury.ac.nz> writes:
|> 
|> > Nope.  Sorry.  Consider the old model where an I/O list is an ordered
|> > sequence of strings and agents (effectively procedure calls), with no
|> > constraints on how those are ordered.  With your specification, that
|> > is neither heterogenous nor homogenous :-)
|> 
|> I don't see any difficulty. This is a list (homogeneous) of
|> two-element tuples (heterogeneous).

Not at all.  I didn't say that they came in pairs.  Consider:

    [str1, str2, agent1, str3, agent2, agent3, agent4, str4, ...]

See Algol 68 for an example of this.


Regards,
Nick Maclaren.