Re: [pure-lang-users] null

[John C. <co...@cc...>]

Albert Graef scripsit:

> Still I can't drag myself to like the idea that ? is an alphanumeric
> when ! and . aren't. ;-)

Well, as I say, you can treat it as a restricted part of identifier
syntax:

<identifier> :== <alpha> <alphanum>{0,} <question-mark>{0,1}

> Any other ideas about a sane naming convention for type predicates 
> that does not require changes in the lexical syntax?

I think the Q "is" convention was actually pretty good, and it's only
one silly letter longer than the -p convention.

(This alludes to an ancient commercial for Chesterfield cigarettes;
they came in standard and 101-mm (rather than 100-mm) sizes and were
sold using the slogan "Just a silly millimeter longer.")

-- 
John Cowan  co...@cc...  http://ccil.org/~cowan
If I have seen farther than others, it is because I am surrounded by dwarves.
        --Murray Gell-Mann