[self-interest] Keyword message associativity.

[David Ungar]

Can you write a parser to give you the result you want?

- David

> On Jul 22, 2018, at 10:17 AM, rvclayton at acm.org [self-interest] <self-interest at yahoogroups.com> wrote:
> 
> The self 2017.1 handbook interprets the expression
> 
> 5 min: 6 min: 7 Max: 8 Max: 9 min: 10 Max: 11
> 
> as
> 
> 5 min: (6 min: 7 Max: 8 Max: (9 min: 10 Max: 11))
> 
> (pgs 17-18) for the message min:Max. This strikes me as wrong - where's the
> Max: part for the message sent to 5? It seems to me that the interpretation
> should be
> 
> 5 min: (6 min: 7 Max: 8) Max: (9 min: 10 Max: 11)
> 
> or, to use indentation
> 
> 5 min:
> 6 min:
> 7
> Max:
> 8
> Max:
> 9 min:
> 10
> Max:
> 11
> 
> I understand that one likes to see a pleasing pile-up of parentheses at the end
> of right-associative expressions, so maybe the example could be
> 
> 5 min: 6 Max: 7 min: 8 Max: 9 min: 10 Max: 11 min: 12 Max: 13
> 
> which equivalent to (if I'm understanding things correctly)
> 
> 5 min: 6 Max: (7 min: 8 Max: (9 min: 10 Max: (11 min: 12 Max: 13)))
> 
> 
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