Hello everybody,
that's a few month i'm following this mailing list. i dont like all the changes
that are being made to perl, i'm using perl since '97, anyway if i think about
it they're mostly all (until i understand everything) benefit to the language.
To make the background i was an assembl
Luke Palmer wrote:
> This requires infinite lookahead to parse. Nobody likes infinite
> lookahead grammars.
Perl already needs infinite lookahead. Anyways, most people
don't care whether a grammar is ambiguous or not -- if we did,
natural human languages would look very different.
People want
On Thu, 12 Sep 2002, Ken Fox wrote:
> Luke Palmer wrote:
> > This requires infinite lookahead to parse. Nobody likes infinite
> > lookahead grammars.
>
> Perl already needs infinite lookahead. Anyways, most people
> don't care whether a grammar is ambiguous or not -- if we did,
> natural human
Luke Palmer wrote:
> On Thu, 12 Sep 2002, Ken Fox wrote:
> > Perl already needs infinite lookahead.
>
> Really? Where?
Indirect objects need infinite lookahead and they are
in the core language. Hyper operators may need lookahead.
Place holders may need lookahead. User defined rules
will definit
> BTW, there are some parser generators that handle
> ambiguous grammars -- they either support backtracking,
> infinite lookahead, or simultaneously parse all possible
> derivations. In the case of the simultaneous parse, they
> can actually return multiple parse trees and let the
> code generato
Ken Fox:
# derivations. In the case of the simultaneous parse, they can
# actually return multiple parse trees and let the code
# generator decide how to interpret things.
Of course, in Perl 6, they'd return a superposition of all possible
parses, and trying to use the superposition would cause
From: Ken Fox [EMAIL PROTECTED]
> BTW, does anybody else find "is rx" funny?
Only because they're not called regular expressions anymore. How about
"px" for "pattern expression"?
-Miko
mail2web - Check your email from the web
I'm thinking XS thoughts because we're going to need a few external
things at SOME point It would be so nice if Perl 6's XS was part of
the language, rather than an external pre-processor.
Something like:
module somesuch;
use External (language=>"C");
sub chdir(string $path //= $
Aaron Sherman [mailto:[EMAIL PROTECTED]] wrote:
> I'm thinking XS thoughts because we're going to need a few external
> things at SOME point It would be so nice if Perl 6's XS
> was part of the language, rather than an external pre-processor.
> [ some interesting stuff]
> Thoughts?
Its good
Aaron Sherman:
# I'm thinking XS thoughts because we're going to need a few
# external things at SOME point It would be so nice if Perl
# 6's XS was part of the language, rather than an external
# pre-processor.
#
# Something like:
#
# module somesuch;
# use External (language=>"C
On Thu, 2002-09-12 at 20:09, David Whipp wrote:
> Aaron Sherman [mailto:[EMAIL PROTECTED]] wrote:
> > I'm thinking XS thoughts because we're going to need a few external
> > things at SOME point It would be so nice if Perl 6's XS
> > was part of the language, rather than an external pre-proce
On Thu, 2002-09-12 at 21:10, Brent Dax wrote:
> Aaron Sherman:
> # I'm thinking XS thoughts
> # Something like:
> #
> # module somesuch;
> # use External (language=>"C");
> # sub chdir(string $path //= $ENV{HOME}) is
> # external(returns=>'int');
>
> I prefer:
>
> module Sy
What are the restrictions on "is rw"? For example, can it be used with
variables of a particular type? If so, does the parameter passed have to
already be that type? What does this do?
sub process(int $i is rw) { $i++ }
my $x = "10";
process($x);
Does C<$x> become 11? That would requ
On Wed, 2002-09-11 at 19:11, [EMAIL PROTECTED] wrote:
> Hello everybody,
>
> that's a few month i'm following this mailing list. i dont like all the changes
> that are being made to perl
Imagine how I felt when Perl 4 came out, with all that silly binary I/O
stuff! I had no idea what Larry had
Aaron Sherman:
# On Thu, 2002-09-12 at 21:10, Brent Dax wrote:
# > Aaron Sherman:
# > # I'm thinking XS thoughts
#
# > # Something like:
# > #
# > # module somesuch;
# > # use External (language=>"C");
# > # sub chdir(string $path //= $ENV{HOME}) is
# > # external(returns=>'int');
#
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