perl6-language@perl.org

2006-01-18 Thread Trey Harris
Excuse my ignorance of the finer points, but I thought the reason for bless's continued existence was so that the same sort of brilliant OO experimentation that Damian and others have done with pure Perl 5 can continue to be done in pure Perl 6 without having to hack p6opaque? Trey

Re: S05.pod

2006-04-17 Thread Trey Harris
In a message dated Mon, 17 Apr 2006, Sean Sieger writes: from There are no C or C modifiers (changes to the meta-characters replace them - see below). to There are no C or C modifiers (change to the meta-characters that replace them - see below). I don't think so There are no meta-char

Re: [svn:perl6-synopsis] r9042 - doc/trunk/design/syn

2006-04-30 Thread Trey Harris
In a message dated Sun, 30 Apr 2006, [EMAIL PROTECTED] writes: The whitespace in the middle may include any of the comment forms above. -Because comments always count as whitespace, the dots in +Because comments always count as whitespace, the C<\.> in -$object.#{ foo }.say +$object\#{ f

Re: Containers

2006-07-11 Thread Trey Harris
In a message dated Tue, 11 Jul 2006, Aaron Sherman writes: But would it be reasonable to also provide a named-only parameter to each for that purpose? our List multi Container::each(Bool :$stop, Container [EMAIL PROTECTED]) So that: for each(:stop, =<>; 1..*) -> ($line, $lineno) { say "$line

Re: Containers

2006-07-11 Thread Trey Harris
In a message dated Tue, 11 Jul 2006, Aaron Sherman writes: On Tue, 2006-07-11 at 09:53 -0700, Trey Harris wrote: It sounds reasonable to me, but :stop reads badly. Maybe C<:strictly>? Maybe it's not a function of a flag to each, but a marking that certain lists should be

Re: S04 - forbidden coding-style

2006-07-21 Thread Trey Harris
In a message dated Fri, 21 Jul 2006, Ruud H.G. van Tol writes: Larry Wall schreef: Maybe we should just make statement modifiers uppercase and burn out everyone's eye sockets. :) Or maybe { }. while $x ; Actually, can't that be made to work already (already by the language spec, not

Re: Patch for S06 (and also S03)

2006-08-07 Thread Trey Harris
In a message dated Mon, 7 Aug 2006, Daniel Hulme writes: Sorry to patch the patch, but in -Other sigils binds only to the I argument with that name: +Other sigil binds only to the I argument with that name: the replacement makes no more sense than the original. "Other sigils bind" or "Any othe

Re: clarify: does "Dog is Mammal" load Mammal for you?

2006-08-22 Thread Trey Harris
In a message dated Mon, 21 Aug 2006, Jonathan Scott Duff writes: But, assuming for the moment that C autoloads C, does that mean that class Dog is Mammal-4.5 is valid? Yes, it must be valid. See http://dev.perl.org/perl6/doc/design/syn/S11.html#Versioning : So you can just say m

Re: clarify: does "Dog is Mammal" load Mammal for you?

2006-08-22 Thread Trey Harris
Oops, Luke Palmer alerted me to the fact that I screwed up in the below. In a message dated Tue, 22 Aug 2006, Trey Harris writes: My question is, if a program is running where two versions of Dog are loaded, say 1.3.4 and 2.1, and a file contains: use Dog-1.3.4-cpan:JRANDOM; class Poodle

Re: clarifying the spec for 'ref'

2006-08-25 Thread Trey Harris
In a message dated Fri, 25 Aug 2006, Mark J. Reed writes: I think the justification for Luke's POV is the number of operations each class provides. But my perspective agrees with Juerd - subclasses can remove functionality as well as adding it, and I definitely view "constant" as an add-on modi

Re: clarifying the spec for 'ref'

2006-08-25 Thread Trey Harris
In a message dated Fri, 25 Aug 2006, jerry gay writes: perhaps trey meant "subclasses can add constraints as well as functionality" instead of "subclasses can remove functionality as well as adding it." just a guess. ~jerry Ok... same thing from a DBC perspective. Subclasses can add functiona

Re: clarifying the spec for 'ref'

2006-08-25 Thread Trey Harris
In a message dated Fri, 25 Aug 2006, Mark J. Reed writes: On 8/25/06, Trey Harris <[EMAIL PROTECTED]> wrote: > subclasses can remove functionality as well as adding it Can someone suggest some reading I can do to understand how that works? I can't wrap my head around the idea

Re: clarifying the spec for 'ref'

2006-08-25 Thread Trey Harris
In a message dated Fri, 25 Aug 2006, Mark J. Reed writes: OK, I admit I wasn't thinking about things from a DBC perspective, and misunderstood "DBC" to be a reference to some database module. I here am new and I didn't have context. My bad. But if we're talking design-by-contract, I don't see

Re: clarifying the spec for 'ref'

2006-08-25 Thread Trey Harris
In a message dated Fri, 25 Aug 2006, Juerd writes: Trey Harris skribis 2006-08-25 11:33 (-0700): Ok... same thing from a DBC perspective. Subclasses can add functionality (by AND'ing postconditions), or remove constraints (by OR'ing preconditions), but they can't tradi

Re: clarifying the spec for 'ref'

2006-08-25 Thread Trey Harris
In a message dated Fri, 25 Aug 2006, Daniel Hulme writes: If "changing that functionality beyond recognition" means changing its external behavior (as opposed to its internal behavior) so that it acts differently from what the superclass had promised to do, then no, it's not any weirder--but I

Re: clarifying the spec for 'ref'

2006-08-25 Thread Trey Harris
In a message dated Fri, 25 Aug 2006, Juerd writes: Trey Harris skribis 2006-08-25 13:26 (-0700): Explain to me how "nontraditional" DBC might work in an internally consistent way. Otherwise, this is hand-waving. :-) Perl *is* hand-waving. Yeah, but hand-waving on how it m

Re: named arguments: What's the signature?

2006-08-29 Thread Trey Harris
In a message dated Tue, 29 Aug 2006, Mark Stosberg writes: Regarding The S06 description of named arguments: http://feather.perl6.nl/syn/S06.html#Named_arguments What I find missing here is documentation of the signature to use if you want to declare "I accept an arbitrary number of named argu

Contextual::Return (was Re: could 'given' blocks have a return value?)

2006-08-30 Thread Trey Harris
In a message dated Tue, 29 Aug 2006, Mark Stosberg writes: my $rm = sub { given $rm_param { when Code { $rm_param(self) } when Hash { %rm_param } default{ self.query.param($rm_param) } }}(); This is eerily like Contextual::Return, which made me wonder if it's eve

but semantics (was Re: Naming the method form of s///)

2006-09-01 Thread Trey Harris
In a message dated Thu, 31 Aug 2006, Juerd writes: Hm. I don't know how "but" works exactly, but in the realm of syntactic sugar, this is appealing: $foo but s/foo/bar/ I like it. This should be easy to make work in theory, but for the problem with C's semantics which I'll get to in a mom

Re: but semantics (was Re: Naming the method form of s///)

2006-09-01 Thread Trey Harris
In a message dated Fri, 1 Sep 2006, Juerd writes: Trey Harris skribis 2006-09-01 0:17 (-0700): I think these semantics are Almost Right, but yet Entirely Wrong. The problem is that C reads to me as a *mutating* operator. That is, I would expect the above code snippet to give me a C<$z.y&

Re: Nested statement modifiers.

2006-09-01 Thread Trey Harris
In a message dated Fri, 1 Sep 2006, Paul Seamons writes: I'm not sure if I have seen this requested or discussed. This was definitively rejected by Larry in 2002: http://www.nntp.perl.org/group/perl.perl6.language/9343 He has not revisited the issue in the several times it has come up since.

Re: Nested statement modifiers.

2006-09-01 Thread Trey Harris
In a message dated Fri, 1 Sep 2006, jerry gay writes: On 9/1/06, Trey Harris <[EMAIL PROTECTED]> wrote: In a message dated Fri, 1 Sep 2006, Paul Seamons writes: > I'm not sure if I have seen this requested or discussed. This was definitively rejected by Larry

Re: multi method dispatching of optional arguments (further refined)

2006-09-04 Thread Trey Harris
In a message dated Tue, 5 Sep 2006, Ph. Marek writes: I now had a look at http://dev.perl.org/perl6/doc/design/syn/S06.html but didn't find what I meant. Sorry if I'm just dumb and don't understand you (or S06); I'll try to explain what I mean. I don't think you're dumb; the Synopses just requ

C outside of C

2006-09-07 Thread Trey Harris
markstos++ pointed out the following behavior: use v6-alpha; { when 1 ~~ 0 { say "Surprise!" } } This code prints "Surprise!", because $_ is undef, which is false, just like 1 ~~ 0 is. I'd like to make the following suggestions for Synopsis clarification: 1. It will be a

Re: C outside of C

2006-09-07 Thread Trey Harris
In a message dated Thu, 7 Sep 2006, Mark Stosberg writes: To refine this point a bit, the spec is clear that 'when' is useful not just with 'given' but with "any block that sets $_". Thanks, I was not being terribly precice when I conflated when with given. Of course, CATCH is another case whe

Re: renaming "grep" to "where"

2006-09-18 Thread Trey Harris
In a message dated Mon, 18 Sep 2006, Darren Duncan writes: Putting aside legacy issues for the moment, I suggest that it might be appropriate to rename the .grep list operator to .where, so we can say, for example: @filtered = @originals.where:{ .foo eq $bar }; Note that this can be writt

Re: any(@originals) ~~ { .foo eq $bar} (was Re: renaming "grep" to "where")

2006-09-19 Thread Trey Harris
In a message dated Tue, 19 Sep 2006, Markus Laire writes: On 9/19/06, Trey Harris <[EMAIL PROTECTED]> wrote: In a message dated Mon, 18 Sep 2006, Darren Duncan writes: > @filtered = @originals.where:{ .foo eq $bar }; Note that this can be written: @filtered = any(@originals)

call, call(), .call, and captures

2006-09-20 Thread Trey Harris
From S06: sub bar ($a,$b,$c,:$mice) { say $mice } sub foo (\$args) { say $args.perl; &bar.call($args); } The C<.call> method of C objects accepts a single C object, and calls it without introducing a C frame. And from S12: In addition to C, the special function C dispatches

Re: Capture sigil

2006-09-20 Thread Trey Harris
In a message dated Wed, 20 Sep 2006, Larry Wall writes: The obvious ASCII for ¢ would be c/ or C/ or c| or c| or maybe just |. I like ¢,but: c/$foo # ASCII of ¢$foo d/$foo # d() divided by $foo is rather confusing. (Same goes for |). So the Term Term exclusion makes me rather lean tow

Re: Capture sigil

2006-09-20 Thread Trey Harris
Oops, I hate typos that result in my writing exactly the opposite of what I meant: In a message dated Wed, 20 Sep 2006, Trey Harris writes: In a message dated Wed, 20 Sep 2006, Larry Wall writes: The obvious ASCII for ¢ would be c/ or C/ or c| or c| or maybe just |. I like ¢,but: c/$foo

Re: RFC: multi assertions/prototypes: a step toward programming by contract

2006-09-27 Thread Trey Harris
In a message dated Wed, 27 Sep 2006, Aaron Sherman writes: Any thoughts? I'm still thinking about the practical implications of this... but what immediately occurs to me: The point of multiple, as opposed to single, dispatch (well, one of the points, and the only point that matters when we'

Re: RFC: multi assertions/prototypes: a step toward programming by contract

2006-09-28 Thread Trey Harris
In a message dated Thu, 28 Sep 2006, Aaron Sherman writes: Jonathan Lang wrote: Aaron Sherman wrote: Jonathan Lang wrote: > Actually, it's a promise made by a package (not a class) to meet the > specification given by a role (which can, and in this case probably > does, reside in a separate fil

Re: RFC: multi assertions/prototypes: a step toward programming by contract

2006-09-29 Thread Trey Harris
In a message dated Fri, 29 Sep 2006, Aaron Sherman writes: First the high-level point: I'm dropping the RFC, because, as TimToady pointed out on IRC, we're not quite far enough down the line to see the breadth or certainty of the need yet. Yes, but I don't think the conversation should stop.

Re: RFC: multi assertions/prototypes: a step toward programming by contract

2006-09-29 Thread Trey Harris
In a message dated Thu, 28 Sep 2006, Jonathan Lang writes: while roles can be abstract, classes and packages should not be. Really? I think I need to let that sink in and percolate a bit. I'm rather fond of creating abstract superclasses to factor out common object-management code. I have m

Re: Abstract roles, classes and objects

2006-10-04 Thread Trey Harris
In a message dated Sun, 1 Oct 2006, Aaron Sherman writes: Trey Harris wrote: In a message dated Fri, 29 Sep 2006, Aaron Sherman writes: [snip] However, that's not to say that a class can't be abstract, just that a class that does an interface (a role with nothing but abstract meth

Re: "Don't tell me what I can't do!"

2006-10-04 Thread Trey Harris
In a message dated Wed, 4 Oct 2006, chromatic writes: The assumption I remember from the design meetings was always "No library designer has the knowledge or the right to tell me how fast or strict my program has to run." Whatever B&D you do in the privacy of your own modules is fine, but if it

Re: "Don't tell me what I can't do!"

2006-10-04 Thread Trey Harris
In a message dated Wed, 4 Oct 2006, jesse writes: On Wed, Oct 04, 2006 at 12:01:22PM -0700, chromatic wrote: The point is that the person writing the program decides which handcuffs or costumes all of the code has to wear, not the person writing the libraries. If you want to set a policy for you

Re: Abstract roles, classes and objects

2006-10-04 Thread Trey Harris
In a message dated Wed, 4 Oct 2006, Jonathan Lang writes: In Perl 6, the abstract SystemMonitor could be a role, and a concrete ScriptedMonitor could be a class that does SystemMonitor, but it's not at all clear to me what HardwareMonitor would be, since classes can't be abstract and roles can't

Re: "Don't tell me what I can't do!"

2006-10-08 Thread Trey Harris
In a message dated Wed, 4 Oct 2006, Smylers writes: Trey Harris writes: I remember not so many years ago when there were a lot of modules floating around that required you to do "no strict" of various flavors in order to use them. Really? How? I wrote imprecisely. Not to &qu

Re: Edge case: incongruent roles

2006-10-13 Thread Trey Harris
In a message dated Fri, 13 Oct 2006, Jonathan Lang writes: Since Baz does both Foo and Bar, you cannot use type-checking to resolve this dilemma. Why not? Why shouldn't this work: my Foo $obj1 = getBaz(); # object is a Baz $obj1.baz(); # Foo::baz is called my Bar $obj2 =

Re: how typish are roles

2006-10-25 Thread Trey Harris
In a message dated Wed, 25 Oct 2006, TSa writes: from the recent threads 'class interface of roles', 'set operations for roles' and 'signature subtyping and role merging' I wonder how typish roles actually are. Some seem to consider roles as lightweight particles that serve to compose classes.

Re: how typish are roles

2006-10-28 Thread Trey Harris
In a message dated Sat, 28 Oct 2006, chromatic writes: When you specify a type to constrain some operation, you specify that the target entity must perform that role. That statement is very concise and direct. If the fuzziness I observed about the identity of the basic building block of type w

where constraints as roles (was Re: how typish are roles)

2006-10-28 Thread Trey Harris
In a message dated Sat, 28 Oct 2006, Trey Harris writes: In a message dated Sat, 28 Oct 2006, chromatic writes: When you specify a type to constrain some operation, you specify that the target entity must perform that role. That statement is very concise and direct. If the fuzziness I

Re: perl 6 and web open source projects

2007-12-03 Thread Trey Harris
In a message dated Tue, 4 Dec 2007, cdumont writes: oh, it might not be relevant in many ways but : http://iamseb.com/seb/2007/12/perl-on-rails-why-the-bbc-fails-at-the-internet/ http://www.bbc.co.uk/blogs/radiolabs/2007/11/perl_on_rails.shtml There's one thing I would like perl6 to shine in,

:($obj) syntax (was Re: [svn:perl6-synopsis] r14479 - doc/trunk/design/syn)

2008-01-05 Thread Trey Harris
In a message dated Thu, 3 Jan 2008, [EMAIL PROTECTED] writes: +But these bindings I autovivify: my %hash; my $val := %hash; my @array; -my $obj = [EMAIL PROTECTED]; # $obj is a Capture object - see S02 +my $cap = [EMAIL PROTECTED]; # $obj is a Capture object - see S02 +m

Re: what should be the default extension?

2008-01-07 Thread Trey Harris
In a message dated Mon, 7 Jan 2008, Richard Hainsworth writes: May I suggest the following extension to the 'use ' pragma, viz. use in constrained by local system> Oh please, no. The entire point of the wording currently in the synopsis is so that we can have platform-independent location o

$?OS semantics

2008-01-07 Thread Trey Harris
Sorry, quoting myself... In a message dated Mon, 7 Jan 2008, Trey Harris writes: given $?OS { when m:i:/win/ { use Foo in WinFoo.pm } when m:i:/nix/ { use Foo in UnixLikeFoo.pm } } It strikes me that $?OS and $?OSVER should probably not be strings (as they now are in Pugs) and

Re: $?OS semantics

2008-01-07 Thread Trey Harris
In a message dated Mon, 7 Jan 2008, Larry Wall writes: On Mon, Jan 07, 2008 at 11:42:06AM -0500, Trey Harris wrote: So $?OS isn't "the type of OS", it's *the OS*, and you can manipulate the OS through it. Note that $?OS is the OS that is-or-was running at compile time, wh

Re: given vs for

2008-04-25 Thread Trey Harris
In a message dated Fri, 25 Apr 2008, Moritz Lenz writes: Paul Fenwick perltraining.com.au> writes: for ($foo) { when ($_ < 500) { ++$_ } when ($_ > 1000) { --$_ } default { say "Just right $_" } } Ahh... that's exactly what I was looking for. Thanks. Make

Re: given vs for

2008-04-25 Thread Trey Harris
To loop back to my earlier question: In Perl 5.10: use strict; use warnings; use feature qw(switch say); my $foo = 10; for ($foo) { when ($foo < 50) { $_++ } } say "for: $foo"; $foo = 10; given ($foo) { when ($foo < 50) { $_++ } } say

Re: Rakudo test miscellanea

2008-06-26 Thread Trey Harris
In a message dated Thu, 26 Jun 2008, Moritz Lenz writes: I assume that 'Num' is meant to be a non-complex. Then it seems to make sense to assume: Int is Rat Rat is Num Num is Complex or am I off again? S29 seems to have been assuming this, if I'm reading the multis correctly.

Re: Should C and C work in C ?

2008-06-30 Thread Trey Harris
--Junction is a sister of Any, not a subtype of Any. That's how you get the autothreading--accept Any or a subtype thereof, and when you get a junction, you autothread. Accept Junction or Object and you can inspect the junction directly. At least, that's how *I* think it wo

E6: assume nothing

2003-07-31 Thread Trey Harris
g "nothing" (different from "assuming nothing"), so that if List::Part::part changed its default for C to C<< <> >>, the client code would pick that up? -- Trey Harris Vice President SAGE -- The System Administrators Guild (www.sage.org) Opinions above are not necessarily those of SAGE.

Re: E6: assume nothing

2003-07-31 Thread Trey Harris
ght... if I want to pass undef to labels, what would I write? -- Trey Harris Vice President SAGE -- The System Administrators Guild (www.sage.org) Opinions above are not necessarily those of SAGE.

Re: backticks

2004-04-14 Thread Trey Harris
call to key(). Trey -- Trey Harris Vice President SAGE -- The System Administrators Guild (www.sage.org) Opinions above are not necessarily those of SAGE.

Re: backticks

2004-04-17 Thread Trey Harris
ies to everyone who just wants to restate some new wrinkle of a point already discussed to death.) Trey -- Trey Harris Vice President SAGE -- The System Administrators Guild (www.sage.org) Opinions above are not necessarily those of SAGE.

placeholder attachment?

2004-04-19 Thread Trey Harris
Can anyone explain the rules of placeholder attachment? i.e., in the example in Perl6::Placeholder's manpage, grep { $data{$^value} } 1..10; C<$^value> is clearly intended to attach to the outer closure C<{ $data{$^value} }>, not the inner closure C<{$^value}>. But how does the compiler know?

Re: placeholder attachment?

2004-04-19 Thread Trey Harris
In a message dated Mon, 19 Apr 2004, Larry Wall writes: > On Mon, Apr 19, 2004 at 04:48:05AM -0600, Luke Palmer wrote: > : Trey Harris writes: > : > Can anyone explain the rules of placeholder attachment? i.e., in the > : > example in Perl6::Placeholder's manpage, >

Re: [S29] pick on other things than junctions

2005-04-04 Thread Trey Harris
In a message dated Mon, 4 Apr 2005, Ingo Blechschmidt writes: > What does pick return on hashes? Does it return a random value or a > random pair? (I suppose returning a pair is more useful.) I'd assume in all cases that pick returns an *alias*, and in the case of hashes, an alias to the pair:

Re: [S29] pick on other things than junctions

2005-04-04 Thread Trey Harris
I'd assume you'd get an *alias* to a random pair: # Test error-correction for 1..$entropy_threshhold { %hash.pick.value = rand $scribble_factor; } Trey In a message dated Mon, 4 Apr 2005, Ingo Blechschmidt writes: > Hi, > > > I remembered Damian saying that pick does not only work on

Re: [S29] pick on other things than junctions

2005-04-04 Thread Trey Harris
In a message dated Mon, 4 Apr 2005, Ingo Blechschmidt writes: > What does pick return on hashes? Does it return a random value or a > random pair? (I suppose returning a pair is more useful.) I'd assume in all cases that pick returns an *alias*, and in the case of hashes, an alias to the pair:

Re: [S29] pick on other things than junctions

2005-04-04 Thread Trey Harris
Yikes. Sorry about the ressends... my email client kept dying and I thought the mail was lost. Guess not. :-) Trey In a message dated Mon, 4 Apr 2005, Trey Harris writes: > In a message dated Mon, 4 Apr 2005, Ingo Blechschmidt writes: > > What does pick return on hashes? Does it

How to default? (was Unary dot)

2002-04-12 Thread Trey Harris
o anything so crass as checking whether my first parameter is defined...) -- Trey Harris Secretary and Executive SAGE -- The System Administrators Guild (www.sage.org) Opinions above are not necessarily those of SAGE.

Re: How to default? (was Unary dot)

2002-04-12 Thread Trey Harris
In a message dated Fri, 12 Apr 2002, Ashley Winters writes: > Would it would be reasonable to have given default to the caller's topic? > > sub printRec { > given { > # $_ is now the caller's topic in this scope > } > } > > Perhaps C would work as well. Yes, something like that wo

Re: How to default? (was Unary dot)

2002-04-12 Thread Trey Harris
In a message dated Fri, 12 Apr 2002, Luke Palmer writes: > Couldn't you do it with old-style Perl5 subs? > > sub printRec { > my $p = chomp(shift // $_); > print ":$_:\n" > } > > Or am _I_ missing something? That definitely won't work (aside from the $p/$_ swap which I assume is unintentional

Re: How to default? (was Unary dot)

2002-04-12 Thread Trey Harris
Oops, caught my own mistake... In a message dated Fri, 12 Apr 2002, Trey Harris writes: > In a message dated Fri, 12 Apr 2002, Luke Palmer writes: > > sub printRec { > > my $p = chomp(shift // $_); > > print ":$_:\n" > > } [Should be equivalent to] &

Re: How to default? (was Unary dot)

2002-04-12 Thread Trey Harris
In a message dated Fri, 12 Apr 2002, Glenn Linderman writes: > $_ becomes lexical > $_ gets aliased to the first topic of a given clause (hence changes > value more often, but the lexical scoping helps reduce that impact) Okay. But it sounds like you're saying that C, and C only, introduces a to

Re: named params, @_, and pass-by-reference

2002-04-17 Thread Trey Harris
ure @_ gets flattened? Trey -- Trey Harris Secretary and Executive SAGE -- The System Administrators Guild (www.sage.org) Opinions above are not necessarily those of SAGE.

Re: Please rename 'but' to 'has'.

2002-04-21 Thread Trey Harris
to state that this black, if it were only just a bit brighter, would be green: $foo = Color.black but green; I think that "black has green" just sounds plain weird. "but" is absolutely perfect, Larry. I say keep it. Trey -- Trey Harris Secretary and Executive SAGE -- The System Administrators Guild (www.sage.org) Opinions above are not necessarily those of SAGE.

Re: Loop controls

2002-04-25 Thread Trey Harris
In a message dated Thu, 25 Apr 2002, Luke Palmer writes: > > before { ... } # run before first iteration, only if there is at > >least one iteration > > after { ... } # run after last iteration, only if there is at least > > one iteration > > noloop { ... }

Re: Loop controls

2002-04-25 Thread Trey Harris
In a message dated Fri, 26 Apr 2002, Damian Conway writes: > Larry is still considering allowing a C block that would do this. > It would go inside the loop block. > [...] > This will be called a C block. It goes inside the loop block. > [...] > This will be called a C block. It goes inside the lo

Re: Loop controls

2002-04-30 Thread Trey Harris
Why not allow C while still allowing C as a synonym, preserving backwards compatibility while still allowing all these weird and varied constructs people seem to have use for? In any case, I don't really see why C necessarily implies all these other cases, too. Maybe they're useful in the real w

Re: Loop controls

2002-04-30 Thread Trey Harris
In a message dated Tue, 30 Apr 2002, Luke Palmer writes: > On Tue, 30 Apr 2002, Trey Harris wrote: > > > Why not allow C while still allowing C as a synonym, > > preserving backwards compatibility while still allowing all these weird > > and varied constructs peo

Re: FIRST, BETWEEN, etc.. (was Re: Loop controls)

2002-05-12 Thread Trey Harris
In a message dated Sun, 12 May 2002, Miko O'Sullivan writes: > From: "David Whipp" <[EMAIL PROTECTED]> > > It it too much to ask, of the creator of a tied array, to implement > > their code in such a way that *reading* an element of that array > > does not have significant side-effects? > > Actua

Why not {,n} in quantifiers?

2002-05-14 Thread Trey Harris
ou read {m,} as "m or more", and {,n} as "n or less", then I think M should clearly default to 0. Is there something I'm missing here? If not, why not add some DWIMiness and make {,n} work? Trey -- Trey Harris Secretary and Executive SAGE -- The System Administrators

Re: Apoc 5 questions/comments

2002-06-07 Thread Trey Harris
In a message dated Fri, 7 Jun 2002, [EMAIL PROTECTED] writes: > The most serious objection to this was 'well, use modules for matching *ml" - > which simply points out that the current incarnation of perl6 regex doesn' > t handle a very large class of matching problems very well. I don't think th

Re: Apoc 5 questions/comments

2002-06-09 Thread Trey Harris
In a message dated Sun, 9 Jun 2002, Damian Conway writes: > Trey Harris wrote: > > rule parsetag :w { > > $tagname := > > %attrs := [ () = > > () > > ]* > >/? > > > > } On seco

Re: Perl 6, The Good Parts Version

2002-07-03 Thread Trey Harris
In a message dated Wed, 3 Jul 2002, Michael G Schwern writes: > Attributes > Transcending mere objects and classes, Perl 6 introduces adverbs. Attributes are adjectives, not adverbs. Aren't they? Trey

$RS paragraph mode going away?

2002-07-05 Thread Trey Harris
Did I hear somewhere that paragraph mode (i.e., C<$/ = ''>) is going away? I can't find it in my archives, so maybe it was one of my feverish Perl 6 dreams (of which I've had too many lately, after spending a few days in training with Damian ;-) but I think I heard it said by someone with authorit

Re: Perl6 grammar (take IV)

2002-07-06 Thread Trey Harris
In a message dated Sat, 6 Jul 2002, Sean O'Rourke writes: > - Implicit currying variables ($^a etc) are in. I thought I had read > somewhere they were gone in favor of closure args, but people seem > to be using them, and they're not hard to put in. My understanding is that they still exist

RE: hyper operators - appalling proposal

2002-07-15 Thread Trey Harris
In a message dated Mon, 15 Jul 2002, Brent Dax writes: > With explicit, you just get the result of Inf ** 2 (which presumably is > still Inf) in $bar. Perhaps neither is what you want, but at least it > doesn't take forever to run. Yes. This is my fear of hyperoperation being the default for no

Re: Light ideas

2002-08-02 Thread Trey Harris
In a message dated Fri, 2 Aug 2002, Miko O'Sullivan writes: > OK, would that notation ( @arr[] = $var ) be something that could be added > by a module, in the same way that operators and /* */ will be addable? I don't think we've seen too much about how Larry plans to do Perl-munging-Perl except

Re: 'while <> {' in Perl 6

2002-08-09 Thread Trey Harris
In a message dated Fri, 9 Aug 2002, Adam Lopresto writes: > I was wondering whether the Perl 'while (<>){' idiom will continue to be > supported in Perl 6? I seem to recall people posting example code the list > using it (although I can't dig any up), but it seems to me that if Perl 6's > lazy l

Re: A Perl 6 class question

2002-08-12 Thread Trey Harris
Another one... class Foo is Bar; method a { setup(); } 1; # EOF (Is the 1 still required? I think I heard Damian say it was going away.) The question is, is this valid, if Bar defines a sub/static method 'setup'? Is my instict right that 'sub' in a class is a 'class/static method' in the

Re: Just reading up on Pike...

2002-08-17 Thread Trey Harris
In a message dated Sat, 17 Aug 2002, [EMAIL PROTECTED] writes: > [$!] Typically contains an object with both string and integer > conversions. Whether convertability to both types is enough to satisfy a > superpositional type is an interesting question. I suspect it *is*. Then I'd assume that mul

attr sigils?

2002-08-21 Thread Trey Harris
I'm wondering about how the sigil-invariance rule interacts with attributes. class Foo { attr $bar; attr @bar; method baz { return @.bar[$.bar]; # sigils disambiguate } method frob ($self:) { return $self.bar[$self.bar]; # uh-oh } } Is this

Re: rule, rx and sub

2002-08-27 Thread Trey Harris
In a message dated Tue, 27 Aug 2002, Luke Palmer writes: > No, it's right. But it doesn't break that. In the grammar, C-like > languages include (something like): > > statement: expression ';' > statement: if expression block > > So an if _statement_ terminates itself. The } on a line

Re: Hypothetical synonyms

2002-08-27 Thread Trey Harris
In a message dated 27 Aug 2002, Uri Guttman writes: > m{^\s* $stuff := [ "(.*?)" | (\S+) ] }; Or, how about my ($fields) = /( '"')>|\S+)/; ? :-) Trey

Re: Hypothetical synonyms

2002-08-28 Thread Trey Harris
In a message dated 27 Aug 2002, Uri Guttman writes: > > "LW" == Larry Wall <[EMAIL PROTECTED]> writes: > > LW> On 27 Aug 2002, Uri Guttman wrote: : and quoteline might even > LW> default to " for its delim which would make : that line: > LW> : > LW> : my ($fields) = /(|\S+)/; > > LW

Re: Hypothetical synonyms

2002-08-28 Thread Trey Harris
In a message dated 28 Aug 2002, Aaron Sherman writes: > Ok, just to be certain: > > $_ = "0"; > my $zilch = /0/ || 1; > > Is $zilch C<"0"> or 8? 8? How do you get 8? You'd get a result object which stringified was "0" and booleanfied was true. So here, you'd get a result object vag

Capturing alternations (was Re: Hypothetical synonyms)

2002-08-28 Thread Trey Harris
In a message dated Thu, 29 Aug 2002, Janek Schleicher writes: > Aaron Sherman wrote at Wed, 28 Aug 2002 00:34:15 +0200: > > > $stuff = (defined($1)?$1:$2) if /^\s*(?:"(.*?)"|(\S+))/; > > It gives me the idea of a missing feature: > > What really should be expressed is: > > my ($stuff) = /^\s*

Re: rule, rx and sub

2002-08-30 Thread Trey Harris
In a message dated Thu, 29 Aug 2002, Damian Conway writes: > And, of course, the C property would smart-match its value > against the corrresponding argument, so one could also code optimized > variants like: > > sub repeat is multi ($desc is valued(1), &body) { > body(1); >

Re: auto deserialization

2002-09-02 Thread Trey Harris
In a message dated 1 Sep 2002, Uri Guttman writes: > > "DW" == David Wheeler <[EMAIL PROTECTED]> writes: > > DW> On Sunday, September 1, 2002, at 05:30 AM, Damian Conway wrote: > >> Sure. But the right solution is to permanently eliminate the > >> sesquipedalian > >> name (so you don

Re: Hypothetical variables and scope

2002-09-02 Thread Trey Harris
In a message dated 2 Sep 2002, Aaron Sherman writes: > I'm working on a library of rules and subroutines for dealing with UNIX > system files. This is really just a mental exercise to help me grasp the > new pattern stuff from A5. > > I've hit a snag, though, on hypothetical variables. How would

RE: auto deserialization

2002-09-03 Thread Trey Harris
In a message dated Tue, 3 Sep 2002, Garrett Goebel writes: > Don't the following statements have identical meaning? > > my Date $date; > my Date $date = Date->new(); Not at all. The first declares that $date is a variable containing Date objects, the second does the same, plus instantiates a ne

RE: auto deserialization

2002-09-03 Thread Trey Harris
In a message dated Tue, 3 Sep 2002, Trey Harris writes: > > So what again is wrong with: > > > > my Date $date = 'June 25, 2002'; > > Nothing--if Date is tieable and implements a STORE method which > instantiates a new object. Well, now that I re-read my

Re: auto deserialization

2002-09-03 Thread Trey Harris
In a message dated Tue, 3 Sep 2002, [EMAIL PROTECTED] writes: > On Monday, September 2, 2002, at 03:44 AM, Damian Conway wrote: > > >> my Date $date .= new('Jun 25, 20002'); > > > > H. That's a very interesting idea. > > I like it. > > Looks pretty groovy to me too. It looks like the .= > o

sub/method refs (was Re: auto deserialization)

2002-09-03 Thread Trey Harris
In a message dated Tue, 3 Sep 2002, Buddha Buck writes: > I suspect that, if it makes sense to say > > $foo = &$date.method; > > then it would also make sense to say > > $date .= $foo; > > as well. Interesting, that first line $foo = &$date.method; I need a bit of a refresher here, as my searc

Re: Hypotheticals again

2002-09-04 Thread Trey Harris
In a message dated Wed, 4 Sep 2002, Jonathan Scott Duff writes: > The thread on hypotheticals has caused me to reread that section of A5 a > few times now and a couple of paragraphs bother me the more I read > them. I'll just quote the parts that bother me: > > ... If a regex sets a hypo

Re: Defaulting params (reprise)

2002-09-04 Thread Trey Harris
In a message dated Wed, 4 Sep 2002, Andrew Wilson writes: > On Wed, Sep 04, 2002 at 03:48:41PM -0500, Jonathan Scott Duff wrote: > > On Wed, Sep 04, 2002 at 04:43:25PM -0400, [EMAIL PROTECTED] wrote: > > > Only augment //= in subroutine declarations, //= would also work. > > > I love the //= oper

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