Re: [perl #76442] [BUG} say ?1..2 # prints ones indefinitively
cognominal stef (): Currently the Range creator method does not coerce its parameters. I think Range should be a role so as to impose some constraint. I think Bool..2 should fail. For what it's worth, I disagree. I think Bool..2 should be equivalent to 0..2 (since Bool is a type object, which numifies to 0). Possibly with a warning, since something undefined is being numified. Patrick pointed out on #perl6 that infix:.. cannot be meant to numify by default, because then 'a'..'z' wouldn't work. But either of these options would still be viable: * If the rhs is Numeric, numify the lhs. * If either the lhs or the rhs is Numeric, numify the other one. I haven't come up with a use case to show that one of these options is better than the other. The first is a bit reminiscent of smartmatching; the second is more symmetric. I don't think Range should be a role. I don't have any rational argument, just the feeling that it's something of a premature type restriction. // Carl
Re: r31627 -[S32/Temporal] Changed to use a different way of specifying time zones, which is hopefully saner than my last proposal.
On Sun, Jul 11, 2010 at 12:56 PM, pugs-comm...@feather.perl6.nl wrote: Author: Kodi Date: 2010-07-11 19:56:33 +0200 (Sun, 11 Jul 2010) New Revision: 31627 Modified: docs/Perl6/Spec/S32-setting-library/Temporal.pod Log: [S32/Temporal] Changed to use a different way of specifying time zones, which is hopefully saner than my last proposal. Modified: docs/Perl6/Spec/S32-setting-library/Temporal.pod === --- docs/Perl6/Spec/S32-setting-library/Temporal.pod2010-07-11 17:09:44 UTC (rev 31626) +++ docs/Perl6/Spec/S32-setting-library/Temporal.pod2010-07-11 17:56:33 UTC (rev 31627) @@ -15,8 +15,8 @@ Created: 19 Mar 2009 -Last Modified: 8 Apr 2010 -Version: 7 +Last Modified: 11 July 2010 +Version: 8 The document is a draft. @@ -88,11 +88,12 @@ All four of the aforementioned forms of Cnew accept two additional named arguments. C:formatter is a callable object that takes a CDateTime and returns a string. The default formatter creates an ISO 8601 timestamp (see -below). C:timezone is a callable object that takes a CDateTime and -returns a two-element list giving the difference from UTC in (possibly both -negative, but not of opposite signs) hours and minutes. Alternatively, -C:timezone can be a two-element list, which is interpreted as a static -offset from UTC. The default time zone is C(0, 0) (i.e., UTC). +below). C:timezone is a callable object that takes a CDateTime to +convert and a CBool that specifies the direction of the conversion: to +UTC if true, from UTC if false. Perhaps it's just me, but a boolean value to specify the direction of conversion seems wrong-ish. An enum with two values TO_UTC and FROM_UTC would be a little more self-documenting. -Scott
Re: r31627 -[S32/Temporal] Changed to use a different way of specifying time zones, which is hopefully saner than my last proposal.
Scott (): Perhaps it's just me, but a boolean value to specify the direction of conversion seems wrong-ish. It's not just you. :) // Carl
Re: r31630 -S02 : add initial formats for Blob (or Buf) literals
On Sun, Jul 11, 2010 at 6:11 PM, Darren Duncan dar...@darrenduncan.net wrote: ... There is also still the need to cover something that looks like a list of integers, for the general case of a Blob/Buf literal, and yet it should have an appearance more like that of a scalar/number/string/etc than of an array/etc. Any thoughts on this? We could allow separator characters within the literal, such as white space plus [[,.;:]] - and/or allow adjacent Blobs to concatenate 0b'0:01;0 1110 1, 00, 0:10' 0o'52, 35, 04, 37, 6' 0x'A7.0.5E' # 0010111010001010101001110100010001110101001110100 # OR in octal 27212516421772470136 # OR in hex 5D154E88FEA705E # OR in decimal 419209598145818718
r31645 -[S04] try to nail down CATCH exit semantics a bit more water-tightly
Author: lwall
Date: 2010-07-12 21:52:08 +0200 (Mon, 12 Jul 2010)
New Revision: 31645
Modified:
docs/Perl6/Spec/S04-control.pod
Log:
[S04] try to nail down CATCH exit semantics a bit more water-tightly
Modified: docs/Perl6/Spec/S04-control.pod
===
--- docs/Perl6/Spec/S04-control.pod 2010-07-12 17:51:44 UTC (rev 31644)
+++ docs/Perl6/Spec/S04-control.pod 2010-07-12 19:52:08 UTC (rev 31645)
@@ -13,8 +13,8 @@
Created: 19 Aug 2004
-Last Modified: 9 Jul 2010
-Version: 100
+Last Modified: 12 Jul 2010
+Version: 101
This document summarizes Apocalypse 4, which covers the block and
statement syntax of Perl.
@@ -986,6 +986,25 @@
it treats code inside a Cdefault block differently from code that's after
all the Cwhen blocks but not in a Cdefault block.
+More specifically, when you write:
+
+CATCH {
+when Mumble {...}
+default {...}
+}
+
+you're really getting something more like:
+
+CATCH {
+when Mumble {...}
+default {...}
+
+leave(Failure);
+
+KEEP (die(Pending exceptions not handled in $!) unless
all($!.pending».handled); $!.handled = 1);
+UNDO die $!;
+}
+
A CCATCH block sees the lexical scope in which it was defined, but
its caller is the dynamic location that threw the exception. That is,
the stack is not unwound until some exception handler chooses to
r31649 -[S02] typo for jnthn++
Author: lwall
Date: 2010-07-13 01:50:39 +0200 (Tue, 13 Jul 2010)
New Revision: 31649
Modified:
docs/Perl6/Spec/S02-bits.pod
Log:
[S02] typo for jnthn++
Modified: docs/Perl6/Spec/S02-bits.pod
===
--- docs/Perl6/Spec/S02-bits.pod2010-07-12 21:25:25 UTC (rev 31648)
+++ docs/Perl6/Spec/S02-bits.pod2010-07-12 23:50:39 UTC (rev 31649)
@@ -4598,7 +4598,7 @@
statement_mod_loop:symfor.say for 1..10
statement_prefix:symgather gather for @foo { .take }
term:sym!!! $x = { !!! }
-trait_does:symdoes my $x does Freezable
+trait_mod:symdoesmy $x does Freezable
twigil:sym? $?LINE
type_declarator:symsubsetsubset Nybble of Int where
^16
r31650 -[S06] add .args to what a context can return
Author: lwall Date: 2010-07-13 01:51:27 +0200 (Tue, 13 Jul 2010) New Revision: 31650 Modified: docs/Perl6/Spec/S06-routines.pod Log: [S06] add .args to what a context can return Modified: docs/Perl6/Spec/S06-routines.pod === --- docs/Perl6/Spec/S06-routines.pod2010-07-12 23:50:39 UTC (rev 31649) +++ docs/Perl6/Spec/S06-routines.pod2010-07-12 23:51:27 UTC (rev 31650) @@ -2469,6 +2469,7 @@ .line .my .hints +.args The C.callframe and C.caller methods work the same as the functions except that they are relative to the frame supplied as invocant.
r31652 -[Temporal] time is now a pseudo-constant like now, rand, etc
Author: lwall Date: 2010-07-13 02:06:01 +0200 (Tue, 13 Jul 2010) New Revision: 31652 Modified: docs/Perl6/Spec/S32-setting-library/Temporal.pod Log: [Temporal] time is now a pseudo-constant like now, rand, etc Modified: docs/Perl6/Spec/S32-setting-library/Temporal.pod === --- docs/Perl6/Spec/S32-setting-library/Temporal.pod2010-07-12 23:59:37 UTC (rev 31651) +++ docs/Perl6/Spec/S32-setting-library/Temporal.pod2010-07-13 00:06:01 UTC (rev 31652) @@ -15,8 +15,8 @@ Created: 19 Mar 2009 -Last Modified: 11 July 2010 -Version: 8 +Last Modified: 12 Jul 2010 +Version: 9 The document is a draft. @@ -57,6 +57,10 @@ Returns the current POSIX time. Use the Cnow function for an epoch-agnostic measure of atomic seconds (i.e., an CInstant). +Note that both Ctime and Cnow are not functions, but terms +of the pseudo-constant variety; as such they never take an argument. +Saying Ctime() doesn't work unless you happen to have a function +of that name defined. =head1 CDateTime
r31654 -[S06] defined callsame/nextsame in terms of callwith/nextwith and callframe
Author: lwall Date: 2010-07-13 02:13:42 +0200 (Tue, 13 Jul 2010) New Revision: 31654 Modified: docs/Perl6/Spec/S06-routines.pod Log: [S06] defined callsame/nextsame in terms of callwith/nextwith and callframe Modified: docs/Perl6/Spec/S06-routines.pod === --- docs/Perl6/Spec/S06-routines.pod2010-07-13 00:06:32 UTC (rev 31653) +++ docs/Perl6/Spec/S06-routines.pod2010-07-13 00:13:42 UTC (rev 31654) @@ -16,8 +16,8 @@ Created: 21 Mar 2003 -Last Modified: 10 Jul 2010 -Version: 140 +Last Modified: 12 Jul 2010 +Version: 141 This document summarizes Apocalypse 6, which covers subroutines and the new type system. @@ -2663,7 +2663,11 @@ The Ccallwith function lets you pass your own arguments to the wrapped function. The Ccallsame function takes no argument; it implicitly passes the original argument list through unchanged. +The Ccallsame and Cnextsame functions are really short for: +callwith( |callframe(Routine).args ) +nextwith( |callframe(Routine).args ) + The call to C.wrap replaces the original CRoutine's Cdo property with the CCallable argument, and arranges that any call to Ccallsame, Ccallwith, Cnextsame or Cnextwith invokes the previous version of the
r31655 -[S02] revise blob literals a bit
Author: lwall
Date: 2010-07-13 02:44:10 +0200 (Tue, 13 Jul 2010)
New Revision: 31655
Modified:
docs/Perl6/Spec/S02-bits.pod
Log:
[S02] revise blob literals a bit
Modified: docs/Perl6/Spec/S02-bits.pod
===
--- docs/Perl6/Spec/S02-bits.pod2010-07-13 00:13:42 UTC (rev 31654)
+++ docs/Perl6/Spec/S02-bits.pod2010-07-13 00:44:10 UTC (rev 31655)
@@ -1350,6 +1350,7 @@
blob1 Blob[bit], a bit string
blob2 Blob[uint2], a DNA sequence?
+blob3 Blob[Uint[3]], an octal string
blob4 Blob[uint4], a hex string
blob8 Blob[uint8], a byte string
blob16 Blob[uint16]
@@ -3189,16 +3190,14 @@
=item *
-Blob literals look similar to integer literals with radix markers, but are
-distinct in their details. A Blob literal has 1 format with 3 radix
-options:
+CBlob literals look similar to integer literals with radix markers, but use
+curlies instead of angles:
-0b00101110100010 base 2, 1 bit per column
-0o523504376 base 8, 3 bits per column
-0xA705E base 16, 4 bits per column
+:2{0010_1110_1000_10} a blob1, base 2, 1 bit per column
+:8{5235 0437 6} a blob3, 3 bits per column
+:16{A705E} a blob4, 4 bits per column
-TODO: Expand this for more generality. Meanwhile, this existing
-definition covers the common cases of specifying in bits and hexits.
+Whitespace and underscores are allowed but ignored.
=item *
r31656 -[S12] define more forced actions on enum values
Author: lwall Date: 2010-07-13 02:55:37 +0200 (Tue, 13 Jul 2010) New Revision: 31656 Modified: docs/Perl6/Spec/S12-objects.pod Log: [S12] define more forced actions on enum values Modified: docs/Perl6/Spec/S12-objects.pod === --- docs/Perl6/Spec/S12-objects.pod 2010-07-13 00:44:10 UTC (rev 31655) +++ docs/Perl6/Spec/S12-objects.pod 2010-07-13 00:55:37 UTC (rev 31656) @@ -13,8 +13,8 @@ Created: 27 Oct 2004 -Last Modified: 11 Jul 2010 -Version: 106 +Last Modified: 12 Jul 2010 +Version: 107 =head1 Overview @@ -1693,9 +1693,16 @@ Fri.WHAT# Day, not Int. +Fri# 5 +Fri.Numeric # 5 Fri ~~ Int # True, because derived from Int Fri.perl# 'Day::Fri' +~Fri# 'Fri' +Fri.Stringy # 'Fri' +Fri.Str # 'Day::Fri' (used by say/print) Fri.key # 'Fri' +Fri.value # 5 +Fri.pair# :Fri(5) +Fri.kv # 'Fri', 5 Fri.defined # True Other than that, number valued enums act just like numbers, while
r31657 -add 2-bits/col blob example
Author: Darren_Duncan
Date: 2010-07-13 02:58:57 +0200 (Tue, 13 Jul 2010)
New Revision: 31657
Modified:
docs/Perl6/Spec/S02-bits.pod
Log:
add 2-bits/col blob example
Modified: docs/Perl6/Spec/S02-bits.pod
===
--- docs/Perl6/Spec/S02-bits.pod2010-07-13 00:55:37 UTC (rev 31656)
+++ docs/Perl6/Spec/S02-bits.pod2010-07-13 00:58:57 UTC (rev 31657)
@@ -3194,6 +3194,7 @@
curlies instead of angles:
:2{0010_1110_1000_10} a blob1, base 2, 1 bit per column
+:4{}a blob2, 2 bits per column
:8{5235 0437 6} a blob3, 3 bits per column
:16{A705E} a blob4, 4 bits per column
r31659 -[S02] s/Uint/uint/ for speculative native role
Author: lwall Date: 2010-07-13 03:36:05 +0200 (Tue, 13 Jul 2010) New Revision: 31659 Modified: docs/Perl6/Spec/S02-bits.pod Log: [S02] s/Uint/uint/ for speculative native role Modified: docs/Perl6/Spec/S02-bits.pod === --- docs/Perl6/Spec/S02-bits.pod2010-07-13 01:08:45 UTC (rev 31658) +++ docs/Perl6/Spec/S02-bits.pod2010-07-13 01:36:05 UTC (rev 31659) @@ -1350,7 +1350,7 @@ blob1 Blob[bit], a bit string blob2 Blob[uint2], a DNA sequence? -blob3 Blob[Uint[3]], an octal string +blob3 Blob[uint[3]], an octal string blob4 Blob[uint4], a hex string blob8 Blob[uint8], a byte string blob16 Blob[uint16]
r31660 -[S32] revert Ctime to POSIX integer seconds; don't try to do Cnow's job
Author: lwall Date: 2010-07-13 03:36:39 +0200 (Tue, 13 Jul 2010) New Revision: 31660 Modified: docs/Perl6/Spec/S32-setting-library/Temporal.pod Log: [S32] revert Ctime to POSIX integer seconds; don't try to do Cnow's job Modified: docs/Perl6/Spec/S32-setting-library/Temporal.pod === --- docs/Perl6/Spec/S32-setting-library/Temporal.pod2010-07-13 01:36:05 UTC (rev 31659) +++ docs/Perl6/Spec/S32-setting-library/Temporal.pod2010-07-13 01:36:39 UTC (rev 31660) @@ -16,7 +16,7 @@ Created: 19 Mar 2009 Last Modified: 12 Jul 2010 -Version: 9 +Version: 10 The document is a draft. @@ -50,12 +50,14 @@ Note that in this document, the term POSIX time means the number of seconds since midnight UTC of 1 January 1970, not counting leap seconds. -This is the same as the output of the ISO C Ctime function except that it -also includes a fractional part. +This is the same as the output of the ISO C Ctime function. +Unlike in Perl 5, Ctime does not return fractional seconds, since CPOSIX +does not define the concept during leap seconds. You want +to use Cnow for that instead. =head1 Ctime -Returns the current POSIX time. Use the Cnow function for an +Returns the current POSIX time as an Int. Use the Cnow function for an epoch-agnostic measure of atomic seconds (i.e., an CInstant). Note that both Ctime and Cnow are not functions, but terms of the pseudo-constant variety; as such they never take an argument. @@ -70,8 +72,12 @@ case, the argument is interpreted as POSIX time. my $now = DateTime.new(now); -my $now = DateTime.new(time); # same thing +my $now = DateTime.new(time); # same thing (usually) +Note that a CDateTime based on Cnow can return a CDateTime +that cannot be produced using Ctime, since Ctime doesn't know +about leap seconds. + Or you can use named arguments: my $moonlanding = DateTime.new( :year(1969), :month(7), :day(16),
