On 2002-10-08 at 17:15:06, Larry Wall wrote:
Seriously, () is just a special token. We could easily have used a
special token like NULLLIST instead. What does INTERCAL use?
Well, INTERCAL doesn't have lists per se, but it does have arrays, whose
size is set by assignment: the lvalue is the
On Sun, 6 Oct 2002, Trey Harris wrote:
: In a message dated Sun, 6 Oct 2002, Noah White writes:
: On Sunday, October 6, 2002, at 01:50 AM, Brent Dax wrote:
:
: Parens don't construct lists EVER! They only group elements
: syntactically. One common use of parens is to surround a
:
On Sat, 5 Oct 2002, Chip Salzenberg wrote:
: According to Larry Wall:
: I suppose we could make comma merely puke in scalar context rather
: than DWIM, at least optionally.
:
: I rather like Perl 5's scalar comma operator.
Most of the uses of which are actually in void context, where it
According to Larry Wall:
On Sat, 5 Oct 2002, Chip Salzenberg wrote:
: I rather like Perl 5's scalar comma operator.
Most of the uses of which are actually in void context [...]
I didn't realize you were distinguishing scalar from void in this, uh,
context. I agree that scalar comma is
Luke Palmer wrote:
my $x = ARGS;
my ($y) = ARGS;
Maybe:?
my ($y) ^= ARGS;
Or (presumably equivalently):
my $y ^= ARGS;
But that's horrible. Presumably with two or more variables the comma
would denote list context, so the caret is only needed for exactly one
variable.
Larry Wall wrote:
I cringe every time someone says Parens construct lists in Perl 6.
Parens don't construct lists in Perl 6.
: Additionally, parentheses have one inconsistency which brackets do not:
: This is the following case, already shown on perl6-language:
:
: $a = ();# $a is
On Sun, 6 Oct 2002, Luke Palmer wrote:
Do parens still provide list context on the left side of an assignment?
What do these two do:
my $x = ARGS;
my ($y) = ARGS;
Parens just grouping suggests that C$x and C$y should be the same
(which may well be good, as it's a subtle
According to Larry Wall:
I suppose we could make comma merely puke in scalar context rather
than DWIM, at least optionally.
I rather like Perl 5's scalar comma operator.
: $a = ();# $a is a list reference with 0 elements
: $a = (10); # $a is the scalar 10
: $a =
On Saturday, October 5, 2002, at 09:33 PM, Larry Wall wrote:
: Additionally, parentheses have one inconsistency which brackets do
not:
: This is the following case, already shown on perl6-language:
:
: $a = ();# $a is a list reference with 0 elements
: $a = (10); #
Larry Wall wrote:
[ Stuff about how commas construct lists, not parens ]
Wow, somehow you've convinced me that all the problems I saw before aren't
really there. Well, switch on the light, there's no monsters under the
bed afterall.
: This has the added benefit that there is a significant
Noah White:
# I think needless obfuscation is treating $a = (10); as a
# scalar instead
# of a list reference containing one item when the rest of the the $a =
# () are list references.
I think needless obfuscation is treating $a = (10) differently than $a =
10. The latter is the behavior
On Sunday, October 6, 2002, at 01:50 AM, Brent Dax wrote:
Parens don't construct lists EVER! They only group elements
syntactically. One common use of parens is to surround a
comma-separated list, but the *commas* are creating the list, *not* the
parens!
Following this rule would mean
Luke Palmer wrote at Wed, 25 Sep 2002 00:09:41 +0200:
Very good written text.
=head1 DESCRIPTION
Because of the addition of the flattening operator, parentheses in Perl 6,
when used as list constructors, are entirely redundant with brackets.
Additionally, parentheses have one
From: Luke Palmer [EMAIL PROTECTED]
[snip]
Luke, thanks and congratulations on a well written case. You put into
words exactly what I was trying to put into words myself. Now I don't have
to finish this ugly draft I have lying around.
-Miko
=head1 TITLE
Square brackets are the only list constructor
=head1 VERSION
Maintainer: Luke Palmer [EMAIL PROTECTED]
Date: 24 Sep 2002
Number: 362 (?)
Version: 1
=head1 ABSTRACT
This RFC responds to the fury on perl6-language about the redundancy of
parentheses and brackets with
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