Ingo Blechschmidt wrote:
Hi,
# Way 1
my $MEANING_OF_LIFE is constant = 42;
Forgive my ignorance here, but for all of these different ways of doing
constants, will they all optimize (including partial
evaluation/currying) at compile/build/init/run-time?
my $gravity is constant = 10; #
[EMAIL PROTECTED] (Adam Kennedy) writes:
Forgive my ignorance here, but for all of these different ways of
doing constants, will they all optimize (including partial
evaluation/currying) at compile/build/init/run-time?
Gosh, I hope not.
my $gravity is constant = 10; # One significant figure
As I am interested in human-readable dates and times, and having found
no conclusive discussion on time formatting, I make my recommendation
for a syntax (to start discussion, and allow for date formatting to be
implemented in pugs):
I would like for time() to return an object, which in numeric
On 5/31/05, Nathan Gray [EMAIL PROTECTED] wrote:
As I am interested in human-readable dates and times, and having found
no conclusive discussion on time formatting, I make my recommendation
for a syntax (to start discussion, and allow for date formatting to be
implemented in pugs):
What's
On Tue, May 31, 2005 at 09:23:11AM -0400, Nathan Gray wrote:
As I am interested in human-readable dates and times, and having found
no conclusive discussion on time formatting, I make my recommendation
for a syntax (to start discussion, and allow for date formatting to be
implemented in pugs):
On May 31, 2005, at 9:51 AM, Rob Kinyon wrote:
On 5/31/05, Nathan Gray [EMAIL PROTECTED] wrote:
As I am interested in human-readable dates and times, and having
found
no conclusive discussion on time formatting, I make my recommendation
for a syntax (to start discussion, and allow for date
On Sun, May 29, 2005 at 12:52:25PM -0400, Jeff 'japhy' Pinyan wrote:
I'm curious if commit and cut capture anything. They don't start
with '?', so following the guidelines, it would appear they capture, but
that doesn't make sense. Should they be written as ?commit and ?cut,
or is the
What's wrong with porting DateTime?
It's back to the old question of what's in core? Are dates and
times something that are used in such a large proportion of programs
that they deserve to be shipped in the basic grammar? Or perhaps in
the basic set of packages?
Perl 5 has an entire
Nathan Gray wrote:
possibly as an strftime() pattern.
Can we please make sure that strftime() is _not_ OS dependent like the
POSIX version is now?
-- Rod Adams
On May 31, 2005, at 1:16 PM, Rob Kinyon wrote:
What's wrong with porting DateTime?
It's back to the old question of what's in core? Are dates and
times something that are used in such a large proportion of programs
that they deserve to be shipped in the basic grammar? Or perhaps in
the
On May 31, 2005, at 2:22 PM, Rob Kinyon wrote:
my ($launch_date = now() + 6 weeks) but time(9am);
Sure. $launch_date is of type DateTime. It will numify to the
seconds-since-the-epoch, stringify to some date string, and provide
all the neat-o-keen methods you want it to have.
Works for
On Tue, May 31, 2005 at 01:11:21PM -0500, Rod Adams wrote:
Nathan Gray wrote:
possibly as an strftime() pattern.
Can we please make sure that strftime() is _not_ OS dependent like the
POSIX version is now?
I don't mind an OS dependent strftime() as long as we have some
formatter that is OS
On Mon, May 23, 2005 at 08:54:19PM +, [EMAIL PROTECTED] wrote:
:
: There are actuall two usefull definition for %. The first which Ada calls
'mod' always returns a value 0=XN and yes it has no working value that is an
identity. The other which Ada calls 'rem' defined as follows:
:
:
On Thu, May 26, 2005 at 11:19:42AM -0500, Patrick R. Michaud wrote:
: Do we still have the rule syntax, or was that abandoned in
: favor of ?rule ? (I know there are still some remnants of ...
: in S05 and A05, but I'm not sure they're intentional.)
It's gone, though we're reserving it for
On Mon, May 30, 2005 at 08:39:57AM +, Luke Palmer wrote:
: Okay, I'd like to set myself straight. Sanity check:
:
: bar($foo, $baz); # looks for subs (lexical then package), and
: falls back to MMD
Er, no.
: $foo.bar($baz);# looks in ref($foo), then falls back to MMD
:
: If
On 2005-05-30 05:15, TSa (Thomas Sandlaß) [EMAIL PROTECTED]
wrote:
Mark Reed wrote:
I would really like to see ($x div $y) be (floor($x/$y))
That is: floor( 8 / (-3) ) == floor( -2. ) == -3
Or do you want -2?
and ($x mod $y) be ($x - $x div $y).
Hmm, since 8 - (-3) == 11 this
On Tue, May 31, 2005 at 01:20:57PM -0700, Larry Wall wrote:
On Thu, May 26, 2005 at 11:19:42AM -0500, Patrick R. Michaud wrote:
: Do we still have the rule syntax, or was that abandoned in
: favor of ?rule ? (I know there are still some remnants of ...
: in S05 and A05, but I'm not sure
On Wed, May 25, 2005 at 07:07:02PM -0400, Uri Guttman wrote:
: the only advantage in the above case is the different prececences of =
: and == which allows dropping of parens with the latter. i don't
: consider that so important a win as to be used often. and they are at
: equal huffman levels as
On Tue, May 31, 2005 at 03:42:42PM -0700, Larry Wall wrote:
: On Wed, May 25, 2005 at 07:07:02PM -0400, Uri Guttman wrote:
: : the only advantage in the above case is the different prececences of =
: : and == which allows dropping of parens with the latter. i don't
: : consider that so important a
Rob Kinyon wrote:
I would love to see a document (one per editor) that describes the
Unicode characters in use and how to make them. The Set implementation
in Pugs uses (at last count) 20 different Unicode characters as
operators.
I have updated the unicode quickref, and started a Perlmonks
On Thu, May 26, 2005 at 11:19:42AM -0500, Patrick R. Michaud wrote:
$rule N indirect rule
::$rulename N indirect symbolic rule
@rulesN like '@rules'
%rulesN like '%rules'
{ code } N code produces a
On Fri, May 27, 2005 at 10:59:25PM +0200, Ingo Blechschmidt wrote:
: Hi,
:
: what is the default invocant of methods?
:
: method blarb ($normal_param) {...}
: # Same as
: method blarb (Class | ::?CLASS $invocant: $normal_param) {...}
: # or
: method blarb (::?CLASS $invocant:
How do I specify the signature of a context-sensitive function?
sub foo() returns (what?) {
return want ~~ Scalar ?? cheap_integer_result :: List_of_Sheep;
}
If it were two subs, one would is returns Int and the other List of
Sheep. The draft S29 uses things like Int|List to
Carl Franks wrote:
I have a class that normally takes a list of named arguments.
I also want to be able to handle a single argument.
class Foo {
multi method new (Class $class: Str $date) {
return $class.bless(date = $date);
}
submethod BUILD ($.date, $.time, $.offset) {
#
Adam Kennedy wrote:
Forgive my ignorance here, but for all of these different ways of doing
constants, will they all optimize (including partial
evaluation/currying) at compile/build/init/run-time?
my $gravity is constant = 10; # One significant figure
sub time_to_ground ($height, $accel) {
Gaal Yahas wrote:
How do I specify the signature of a context-sensitive function?
sub foo() returns (what?) {
return want ~~ Scalar ?? cheap_integer_result :: List_of_Sheep;
}
If it were two subs, one would is returns Int and the other List of
Sheep. The draft S29 uses things
All this discussion of identity defaults for reductions has been very
interesting and enlightening.
But it seems to me that the simplest correct behaviour for reductions is:
2+ args: interpolate specified operator
1 arg: return that arg
0 args: fail (i.e. thrown or unthrown
Damian Conway wrote:
0 args: fail (i.e. thrown or unthrown exception depending on use
fatal)
...
$sum = ([+] @values err 0);
$prod = ([*] @values err 1);
$prob = ([*] @probs err 0);
Just wanted to check, if I've said use fatal: will that err 0 DWIM,
or will the
Dave Whipp wrote:
Damian Conway wrote:
0 args: fail (i.e. thrown or unthrown exception depending on use
fatal)
...
$sum = ([+] @values err 0);
$prod = ([*] @values err 1);
$prob = ([*] @probs err 0);
Just wanted to check, if I've said use fatal: will that err 0
On Mon, May 30, 2005 at 05:00:26PM +0100, Carl Franks wrote:
: I have a class that normally takes a list of named arguments.
: I also want to be able to handle a single argument.
:
: class Foo {
: multi method new (Class $class: Str $date) {
: return $class.bless(date = $date);
: }
:
:
Damian Conway wrote:
And what you'd need to write would be:
$sum = (try{ [+] @values } err 0);
The err ... idiom seems too useful to have it break in this case.
Afterall, the purpose of err 0 is to tell the stupid computer that I
know what to do with the empty-array scenario.
Feels
Dave Whipp wrote:
Damian Conway wrote:
And what you'd need to write would be:
$sum = (try{ [+] @values } err 0);
The err ... idiom seems too useful to have it break in this case.
Afterall, the purpose of err 0 is to tell the stupid computer that I
know what to do with the
Damian Conway skribis 2005-06-01 10:44 (+1000):
2+ args: interpolate specified operator
1 arg: return that arg
0 args: fail (i.e. thrown or unthrown exception depending on use fatal)
Following this logic, does join( , @foo) with [EMAIL PROTECTED] being 0 fail
too?
I dislike
Juerd asked:
2+ args: interpolate specified operator
1 arg: return that arg
0 args: fail (i.e. thrown or unthrown exception depending on use fatal)
Following this logic, does join( , @foo) with [EMAIL PROTECTED] being 0 fail too?
No. It returns empty string. You could think of
Perl 6 Summary for 2005-05-24 through 2005-05-31
All~
Welcome to another Perl 6 summary, brought to you by Aliya's new
friends, Masha Nannifer and Philippe, and my own secret running joke.
Without further ado, I bring you Perl 6 Compiler.
Perl 6 Compiler
method chaining
-Original Message-
From: Damian Conway [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 31, 2005 11:14 PM
To: perl6-language@perl.org
Subject: Re: reduce metaoperator on an empty list
Juerd asked:
2+ args: interpolate specified operator
1 arg: return that arg
0
Rob Kinyon wrote:
What I'm trying to get at isn't that DateTime's API should be
preserved. I'm saying that the concept of DateTime should be ported.
Core or not core - it doesn't matter. When use'd (or installed), it
should override now() (and anyone else we can think of) to return an
object
Rod Adams wrote:
How do I specify the signature of a context-sensitive function?
sub foo() returns (what?) {
return want ~~ Scalar ?? cheap_integer_result :: List_of_Sheep;
}
I suspect a typed junction would look like : Junction of Int|Str.
Not quite. AIUI that means a
Thank you for the summary, Matt
I have a correction, though:
subrules tests
Dino Morelli provided a patch adding tests for subrules to PGE. Warnock
applies.
http://xrl.us/f955
This and my other two patches to p6rules tests (RT #35950, 35971, 35994)
have not yet been applied.
Sam Vilain wrote:
Rod Adams wrote:
How do I specify the signature of a context-sensitive function?
sub foo() returns (what?) {
return want ~~ Scalar ?? cheap_integer_result :: List_of_Sheep;
}
I suspect a typed junction would look like : Junction of Int|Str.
Not quite.
Joe Gottman pointed out:
No. It returns empty string. You could think of Cjoin as being
implemented:
sub join (Str $sep, [EMAIL PROTECTED]) { reduce { $^a ~ $sep ~ $^b } ,
@list }
If this were the case, then
join '~', 'a', 'b', 'c'
would equal '~a~b~c' instead of
On Tue, May 31, 2005 at 11:58:12PM -0400, Dino Morelli wrote:
Thank you for the summary, Matt
I have a correction, though:
subrules tests
Dino Morelli provided a patch adding tests for subrules to PGE. Warnock
applies.
http://xrl.us/f955
This and my other two patches
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