Its test day again here in the Moose-pen

4 files changed, 341 insertions(+), 67 deletions(-)

 1/12 Gather view_element Price in not in the elements array! Only elements from that array can be added …

# Looks like your test exited with 2 just after 11.

This time, I have a trial implementation. I take on parsing of Haskell's significant whitespace, implementing all the examples in the 2010 Language Report and the classic "Gentle Introduction". By the time I'm done this amounts to a substantial subset of Haskell's syntax.

Hi,

I have a shell script and it looks like this:

#!/bin/bash

for i in *dat.gz
do gunzip $i
echo uniprot_sprot_archaea.dat | perl -slane '$a=(split /\_/, $_)[2]; $a=~/(\w+).dat/; $b=$1; print "perl screen_complete_proteome_from_uniprot_division.pl \$i >> uniprot_".$b.".fasta"' -- -i=$i
done

I don't know coding. But I need to understand this perl commands. From echo to end of the command, I don't understand. Could someone please explain them?

Thanks a ton.

Type::Tiny is probably best known as a way of having Moose-like type constraints in Moo, but it can be used for so much more. This is the fifth in a series of posts showing other things you can use Type::Tiny for. This article along with the earlier ones in the series can be found on my blog and in the Cool Uses for Perl section of PerlMonks.

It's pretty common to do things like this:

Still API day here in the Moose-Pen.

The first thing I did today was save all my work to github and create a new branch so I can work on that trigger idea I had yesterday.

This time out no need to write a test first my present test cases should be all that I need so I can dive right into the code today;

-- sub _check_elements_present {
++ sub _check_dynamic {

 trigger   => \&_check_dynamic

What a dull title. Anyway. This was intended to just be an account of my experience at TPCiG, but quickly developed into an tl;dr life story. Sorry about that, everyone. Sorry.

I had dreamed of attending YAPC/TPC ever since I discovered what an amazing community surrounded Perl. This year, I realised that dream.

To begin with "The Perl Conference in Glasgow" was my first ever YAPC. Prior to this, I was only regular to London Perl Workshop. It was the gang at German Perl Workshop that I attended earlier encouraged me to come to YAPC as well. I think it was worth attending
the event. To make it even more fun, I brought my young family with me to explore the city as well.

originally published in PerlMonks

Carp::Always is a minimalist debugging aid, often used from the command line with usage patterns like

perl -MCarp::Always script.pl

or

PERL5OPT=-MCarp::Always script.pl

Using Carp::Always decorates the output of each warn() and die() with stacktraces. For example,

$ perl -MCarp::Always -e 'sub f { die "arghh" }; sub g { f }; g;'
arghh at -e line 1
        main::f() called at -e line 1
        main::g() called at -e line 1

This is meant to help finding where issues actually coming from at the code being inspected.

Its re-factor day here in the Moose-Pen

Type::Tiny is probably best known as a way of having Moose-like type constraints in Moo, but it can be used for so much more. This is the third in a series of posts showing other things you can use Type::Tiny for. This article along with part 1, part 2, and part 3 can be found on my blog and in the Cool Uses for Perl section of PerlMonks.

Even if you read the documentation of Types::Standard pretty thoroughly, you'd probably miss that you can do things like this:

   use Types::Standard qw(is_ArrayRef is_HashRef);
   
   if (is_ArrayRef($var)) {
      ...;
   }
   elsif (is_HashRef($var)) {
      ...;
   }

It is documented that Types::Standard exports functions called ArrayRef and HashRef, which are constant-like functions returning Moose/Moo-compatible type constraint objects, but where did these is_ArrayRef and is_HashRef functions come from?

Read this article on Rakudo.Party

Today's is a milestone of sorts: it's 100 days before the first scheduled Rakudo Perl 6 compiler release that will occur after this year's festival of Diwali. As some know, Diwali is also the code name for the next major release of the Perl 6 language, version 6.d, which means there's a high chance that in about 100 days you'll be able to install and use that.

I figured, I'd write a update on the subject.

When?

The oft-asked questions is when is 6.d going to be released. The plan is to have the 6.d specification good and ready to release on this year's Diwali, which is November 6–7.

Before I say anything, I must say, I am who I am today because of the wonderful Perl Community. I have been attending London Perl Workshop since 2012. Ever since I have seen plenty of improvements as far as the quality of talks, venue management and other activities.

Still in API land here in the Moose-Pen

Type::Tiny is probably best known as a way of having Moose-like type constraints in Moo, but it can be used for so much more. This is the third in a series of posts showing other things you can use Type::Tiny for. This article along with part 1 and part 2 can be found on my blog and in the Cool Uses for Perl section of PerlMonks.

This works:

   use Types::Standard qw(Int);
   
   tie(my @numbers, Int);
   
   push @numbers, 1, 2, 3;     # ok
   push @numbers, "four";      # dies

Well, if you try it, you may find it complains about not being able to load Type::Tie.

Type::Tie is an add-on for Type::Tiny distributed separately. It's an optional dependency, so if you want to use this feature, you'll need to make sure it's installed.

Read this article on Rakudo.Party

As some of you already may have known from occasional tweets and mentions in the Weekly, we have a perl6/marketing repo that contains some flyers and brochures for Perl 6.

With one of the Perl 6 coredevs making a living as a Multi-Media Designer, the repo has seen a steady stream of new pieces designed, when inspiration strikes, or when someone makes a request. There are now several pieces available, but GitHub isn't the greatest interface for this sort of stuff.

Introducing marketing.perl6.org

To make it easier to see what we have available, we made a front-end for our marketing repo, that lets you browse all of the assets. It's hosted at marketing.perl6.org

The Assets

July has been little stressful for me. Why? For the first time ever, I struggled to find issues to help with PR. Partly because the "Kwalitee" link was broken for first 2 weeks. Even when it became active, there was hardly anything for me to work on. Is it because CPAN authors are becoming smarter these days? At one point, I thought I am going miss the target of average 1 PR a day. Luckily the second half of the month was really productive. Apart from PR, there is another thing that kept me on my toes, which is daily uploads to CPAN. Having done this for over 1000 days without break in the past, I am finding it hard to carry on currently at 345 days. However I have enough things to carry on for at least another 2 weeks. I would be happy if I could complete 1 year without break.

Lets do comparative analysis on the listed points:

• Pull Request
• Git Commits
• Pull Request Challenge
• Perl Blog
• PerlWeekly Newsletter
• Adopt CPAN Module

Its even more API Day here in the Moose-Pen

da->add_gather({elements => [{name => 'user_id',
                               view => 'people'},
                               {name => 'salary',
                               view => 'people'}],
                 view_elements=>[{name => 'user_id'',
                                  view => 'people'},
                                 {name => 'salary',
                                  view => 'people'},]
                });

Type::Tiny is probably best known as a way of having Moose-like type constraints in Moo, but it can be used for so much more. This is the second in a series of posts showing other things you can use Type::Tiny for. You can refer back to part 1.

Type::Tiny is often used in Moo classes and roles as a drop-in replacement for Moose's built-in type system. But the original reason I wrote it was as a response to the growing number of MooseX::Types and MouseX::Types modules on CPAN. I thought "wouldn't it be good if you could write a type library once, and use it for Moose, Mouse, and maybe even Moo?" In the very early version, you needed to import types like this:

   use Type::Standard -moose, qw(Int);
   use Type::Standard -mouse, qw(Int);
   use Type::Standard -moo,   qw(Int);

Read this article on Rakudo.Party

An important part of a project is to keep a steady flow of new volunteers coming on board to help you out (that's Hug 1: Gift a Shovel in the Hole Digging Metaphor). Starting out can be difficult: you barely know the people who you're working with and you're not familiar with the codebase or the build toolchain. A bug that will take a regular coredeveloper a minute to fix, test, and ship, might be insurmountable for someone who doesn't know where to start.

Perl 6 can especially benefit from newcomer help, as core development is very easy to get into: a lot of bugs involve pure Perl 6 code, mixed with some NQP subroutine calls that aren't much different than using subroutines from an ecosystem module.

Be ready for all the new Perl 6 content at the Glasgow Perl Conference, join me at the day-long Perl 6 Tutorial session on Monday the 13th, get trained before the talks start!