On Fri, 2002-01-25 at 12:38, Bryan C. Warnock wrote:
> On Friday 25 January 2002 12:34, Simon Cozens wrote:
> > Should we be allowed to use _ to group numbers, now that _ is concat?
> > If not _, then what? (if anything?)
>
> Sure, why not? '_' is still a valid character in an identifier. You'd
> still simply need disambiguating whitespace for concatenation.
Ok, so the concern is that
100_000
could be
(100) _ (000)
or
100000
It seems to me that the way around this is to change _ to space for
numbers. Is there ever a reason to have:
100 000
currently? I can't think of one. Such spaces could easily be noted and
removed by the tokenizer early on.
Then again, _ still bothers me as an operator. I think it's because Perl
has trained me to think of _ as being very flexible and
context-sensitive (ala $_, @_, etc). And so, it seems odd that the _
operator should have one fixed, narrow purpose.
