Grammar doesn't seem to match any token
My grammar doesn't seem to match the 'other' rule. What's wrong with it?
grammar Weave {
token TOP { * }
rule el { | | }
rule lt { '<' }
rule tilde { '~' \S+ }
rule other { . }
}
class Weaver {
has Str $.outstr;
method TOP ($/) { make $ ; put("top called") ; put($) }
method el ($/) { put($/) }
method tilde ($/) { say 'tilde called' }
method lt ($/) { make '' ; put(''); $!outstr ~= 'X' }
method other ($/) { $!outstr ~= '.'; say 'other called';
put('.'); }
}
$input = '~i <
Re: Fwd: Re: Is win 32 being worked on?
On 25/07/2017 20:31, Darren Duncan wrote: I would question why any desktop computer manufacturers were still even shipping non-64-bit capable hardware in 2010. I dual-boot (rarely) with it, and it runs 64-bit Ubuntu. I am using a Dell, which came with 32-bit Win 7.
Fwd: Re: Is win 32 being worked on?
On 2017-07-25 11:05 AM, Mark Carter wrote: On 25/07/2017 18:34, Darren Duncan wrote: How often would someone reasonably be using a cutting edge tool like Rakudo on Windows without having a 64 bit Windows these days? Thing is, I have a computer from 2010, Win 7 32-bit. It's fast enough for me, and does what I want it to do. I'm not going to spend money just to run Perl6. It doesn't even compile on cygwin. Python is available in 32-bit. Why not perl6?
Re: Announce: Rakudo Star Release 2017.07
Attempted build on Arch Linux: perl Configure.pl --prefix=$HOME/.local --backend=moar --gen-moar --gen-moar Resulting in: Building NQP ... /usr/bin/perl Configure.pl --prefix=/home/mcarter/.local --backends=moar --make-install Creating tools/build/install-jvm-runner.pl ... ===SORRY!=== Found /home/mcarter/.local/bin/moar version 2017.04-53-g66c6dda, which is too old. Wanted at least 2017.07 No suitable MoarVM (moar executable) found using the --prefix (You can get a MoarVM built automatically with --gen-moar.) Command failed (status 65280): /usr/bin/perl Configure.pl --prefix=/home/mcarter/.local --backends=moar --make-install
Re: Is win 32 being worked on?
On 21/07/2017 09:50, Todd Chester wrote: I may be wrong, but I do believe what you want is called "Rakudo Star". You can download it from https://rakudo.perl6.org/downloads/star/ But no recent win 32-bit.
Is win 32 being worked on?
I noticed that there is no Windows 32-bit version of rakudo, and it won't even compile on cygwin. Are there plans for fixing this?
Why is my class rejecting new()?
I have a class definition:
class Etran {
has $.dstamp is rw;
has $.folio is rw;
has $.ticker is rw;
has $.qty is rw;
has $.amount is rw;
has $.desc is rw;
method new($line) {
my ($cmd, $dstamp, $folio, $ticker, $qty, $amount, $way, $desc)
= shlex-fields $line;
$!dstamp = $dstamp;
$!folio = $folio;
$!ticker = $ticker;
$!qty = $way == "B" ?? $qty !! - $qty;
$!amount = $amount;
$!desc = $desc;
}
}**
which I instantiate with
my $e = Etran.new($line);
However, it gives an error message:
Cannot look up attributes in a Etran type object
at the line
$!dstamp = $dstamp;
Why that, and how do I fix it?
Also, I don't really understand the difference between using the twigils "." and using
"!",
and have yet to see an explanation that I understand.
Re: Where's the filter command?
On 18/07/2017 09:53, Brent Laabs wrote:
Are you looking for grep()? https://docs.perl6.org/routine/grep
Ah yes. Thanks for that.
Pretty good:
say ($schema.lines().map: ).grep: { .elems() > 0; } ;
Re: Is there a bash/shlex-like processor with double-quotes handling?
On 14/07/2017 15:23, Lucas Buchala wrote:
Alternatively, the «...» builtin operator already does some kind of
word splitting respecting quotes, if that fits your needs:
Thanks. I take it you are referring to the "hyper" operator (?) It looks
good, but it doesn't quite work:
my $d = "hello \"there world\"";
my @f = << $d >>;
@f[1] ; # "there
As it happens, I did manage to create a grammar that respects quoting,
and even escaped quoting:
grammar Shlex {
token TOP {<.ws>? (|)* <.ws>?}
token ws { \s+ }
rule word { <[a..zA..Z0..9\\-]>+ }
token ascii_char { <-["\\]> } # anything not a " or \
token escaped_char { "\\\"" } # literal \"
token qstring { '"' [|]* '"' <.ws>? }
}
my $m = Shlex.parse(Q[goodbye "\"cruel\" world" ]);
say "First component:$m[0][0].Str()"; # OUTPUT: First component:goodbye
say "Second component:$m[0][1].Str()"; # OUTPUT: Second component:"\"cruel\"
world"
Is there a bash/shlex-like processor with double-quotes handling?
Is there a function that can decompose a string to an array separated by
whitespace, but also respecting double quotes, and prefereably escape
sequences?
So, for example:
my $d="hello \"cruel world\"";
something-something($d) ; => ("hello", "cruel world")
Re: Perl6 NCurses module under Arch: libncursesw.so.6
On 18/04/17 15:56, Dominique Dumont wrote: You should be able to install ncurses 5 on arch: https://aur.archlinux.org/packages/ncurses5-compat-libs/ NCurses has changed recently to take into account ncurses 6 so that in future everything should work out of the box. Fingers crossed.
Perl6 NCurses module under Arch: libncursesw.so.6
I'm running: This is Rakudo version 2017.01 built on MoarVM version 2017.01 implementing Perl 6.c. under Arch. When I do $perl6 starfield.pl6 I get: Cannot locate native library 'libncursesw.so.5': libncursesw.so.5: cannot open shared object file: No such file or directory That is because version 6 of the ncurses library is installed, rather than 5.
