From jalex at pobox.com  Tue Sep  9 20:02:46 2008
From: jalex at pobox.com (Jason)
Date: Tue, 9 Sep 2008 23:02:46 -0400
Subject: [Columbus-pm] Fwd: [pm_groups] Pittsburgh Perl Workshop 2008
In-Reply-To: <5AA97519-D95F-4F5F-86F3-EC375D7795DA@robertblackwell.com>
References: <5AA97519-D95F-4F5F-86F3-EC375D7795DA@robertblackwell.com>
Message-ID: <8d5e76f20809092002y5bff09dcjccbed559e5dee079@mail.gmail.com>

---------- Forwarded message ----------
From: Robert Blackwell <robert at robertblackwell.com>
Date: Tue, Sep 9, 2008 at 9:22 PM
Subject: [pm_groups] Pittsburgh Perl Workshop 2008
To: pm_groups at pm.org


Please forward this to your local Perl Monger group or anywhere you think it
might find people interested in perl.

Thanks

Robert Blackwell



The Pittsburgh Perl Workshop is a low-cost technical conference held at the
Carnegie Mellon University's Oakland Campus. The workshop will be held on
October 11?12 2008.

* Talk Proposals

* Classes

* Hack-a-thons



* Talk Proposals

The deadline for talk proposals in by 12 September 2008.

The Pittsburgh Perl Workshop 2008 is the perfect opportunity to share your
ideas, code, and projects with masses of code-loving Perl hackers. Shouldn't
you have a speaking slot at this year's event? Shouldn't you experience the
full, PPW-powered glory that only speakers can know?

Of course you should!

Haven't you ...
done interesting stuff for Perl?
written cool code?
seen the future of Perl?
got a story to tell?
got a trick to share?

In fact, if you have anything to say that would interest Perl people, we
want to hear you say it!

Just go to http://pghpw.org and submit a talk proposal. It's that easy.

But don't delay. Get your proposal in by 12 September 2008 -- or else you
might miss out.

Seize the day! Own the fun! Submit a talk proposal for PPW 2008 now!



* Classes

This year we are offering three great classes:

Dan Klein is back teaching From Zero to Perl.
http://pghpw.org/ppw2008/zerotoperl.html

Peter Scott - Maintaining Code While Staying Sane
http://pghpw.org/ppw2008/maintainingcode.html

brian d foy - Mastering Perl
http://pghpw.org/ppw2008/masteringperl.html


* Hack-a-thons

We are having a Rakudo, (Perl 6) hack-a-thon.




--
Request pm.org Technical Support via support at pm.org

pm_groups mailing list
pm_groups at pm.org
http://mail.pm.org/mailman/listinfo/pm_groups



-- 
Jason
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From alperyilmaz at gmail.com  Fri Sep 26 22:30:54 2008
From: alperyilmaz at gmail.com (Alper Yilmaz)
Date: Sat, 27 Sep 2008 01:30:54 -0400
Subject: [Columbus-pm] hash of hashes
Message-ID: <dac81b0d0809262230m224a6d40q1b411db4667ae454@mail.gmail.com>

Hi Columbus Perl Mongers,

I'm the webmaster of www.grassius.org , the site is developed with Perl by
HTML::Mason. I also used Bio::Perl modules in addition to pure Perl.
However, my background is  in biology and I learned/used Perl within a year.
I'm having trouble with complex data structures such as hash of hashes. Even
though I read tutorials or manuals I'm not getting it, since I learn
visually. I think I'll learn faster if someone can show me. So, I was
wondering if there's anybody in Columbus who can meet 1-2 times and explain
and show hash of hashes to me? If there are any classes locally taught,
that'll work as well.

thanks,
-- 
Alper
Post-doctoral Researcher
Plant Biotechnology Center
The Ohio State University
1060 Carmack Rd
Columbus, OH 43210
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From Chuck.Day at s1te.com  Sat Sep 27 05:08:37 2008
From: Chuck.Day at s1te.com (Chuck Day)
Date: Sat, 27 Sep 2008 08:08:37 -0400 (EDT)
Subject: [Columbus-pm] hash of hashes
In-Reply-To: <dac81b0d0809262230m224a6d40q1b411db4667ae454@mail.gmail.com>
References: <dac81b0d0809262230m224a6d40q1b411db4667ae454@mail.gmail.com>
Message-ID: <4067.75.118.24.175.1222517317.squirrel@WWW.S1TE.COM>

Alper,

Hashes might be my favorite use of perl.  Especially hashes of hashes and hashes of
arrays.  I have about 10 pages of notes on these and would be happy to meet you over
coffee anytime.  Just give me a ring at 614-598-5559.

Chuck



> Hi Columbus Perl Mongers,
>
> I'm the webmaster of www.grassius.org , the site is developed with Perl by
> HTML::Mason. I also used Bio::Perl modules in addition to pure Perl.
> However, my background is  in biology and I learned/used Perl within a year.
> I'm having trouble with complex data structures such as hash of hashes. Even
> though I read tutorials or manuals I'm not getting it, since I learn
> visually. I think I'll learn faster if someone can show me. So, I was
> wondering if there's anybody in Columbus who can meet 1-2 times and explain
> and show hash of hashes to me? If there are any classes locally taught,
> that'll work as well.
>
> thanks,
> --
> Alper
> Post-doctoral Researcher
> Plant Biotechnology Center
> The Ohio State University
> 1060 Carmack Rd
> Columbus, OH 43210
> _______________________________________________
> Columbus-pm mailing list
> http://columbus.pm.org/
> Columbus-pm at pm.org
> http://mail.pm.org/mailman/listinfo/columbus-pm



From derekbellnersmith at yahoo.com  Sat Sep 27 07:44:38 2008
From: derekbellnersmith at yahoo.com (Derek B. Smith)
Date: Sat, 27 Sep 2008 07:44:38 -0700 (PDT)
Subject: [Columbus-pm] hash of hashes
Message-ID: <838543.32841.qm@web38404.mail.mud.yahoo.com>

Chuck, 

Wow could you share these notes in electronic fomat? At times I have issues grasping these data structures.
BTW, will columbus.pm hold a Perl workshop in the spring? I read this on PPW's website. I went last year but cannot go this year...scheduling conflicts.


thank you

----- Original Message ----
From: Chuck Day <Chuck.Day at s1te.com>
To: Alper Yilmaz <alperyilmaz at gmail.com>
Cc: columbus-pm at pm.org
Sent: Saturday, September 27, 2008 8:08:37 AM
Subject: Re: [Columbus-pm] hash of hashes

Alper,

Hashes might be my favorite use of perl.  Especially hashes of hashes and hashes of
arrays.  I have about 10 pages of notes on these and would be happy to meet you over
coffee anytime.  Just give me a ring at 614-598-5559.

Chuck



> Hi Columbus Perl Mongers,
>
> I'm the webmaster of www.grassius.org , the site is developed with Perl by
> HTML::Mason. I also used Bio::Perl modules in addition to pure Perl.
> However, my background is  in biology and I learned/used Perl within a year.
> I'm having trouble with complex data structures such as hash of hashes. Even
> though I read tutorials or manuals I'm not getting it, since I learn
> visually. I think I'll learn faster if someone can show me. So, I was
> wondering if there's anybody in Columbus who can meet 1-2 times and explain
> and show hash of hashes to me? If there are any classes locally taught,
> that'll work as well.
>
> thanks,
> --
> Alper
> Post-doctoral Researcher
> Plant Biotechnology Center
> The Ohio State University
> 1060 Carmack Rd
> Columbus, OH 43210
> _______________________________________________
> Columbus-pm mailing list
> http://columbus.pm.org/
> Columbus-pm at pm.org
> http://mail.pm.org/mailman/listinfo/columbus-pm


_______________________________________________
Columbus-pm mailing list
http://columbus.pm.org/
Columbus-pm at pm.org
http://mail.pm.org/mailman/listinfo/columbus-pm
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From jalex at pobox.com  Sun Sep 28 18:02:04 2008
From: jalex at pobox.com (Jason)
Date: Sun, 28 Sep 2008 21:02:04 -0400
Subject: [Columbus-pm] Fwd: [pm_groups] Pittsburgh Perl Workshop Oct 11-12,
	2008
In-Reply-To: <5A23F48F-2F84-40CF-A986-99DD5CFFE43F@robertblackwell.com>
References: <5A23F48F-2F84-40CF-A986-99DD5CFFE43F@robertblackwell.com>
Message-ID: <8d5e76f20809281802w40f42d3br60d017e979aadd11@mail.gmail.com>

...and the price - http://pghpw.org/ppw2008/costs.html

---------- Forwarded message ----------
From: Robert Blackwell <robert at robertblackwell.com>
Date: Sat, Sep 27, 2008 at 10:26 PM
Subject: [pm_groups] Pittsburgh Perl Workshop Oct 11-12, 2008
To: pm_groups at pm.org


Please forward this to your local Perl Monger group and anywhere you think
might find people that would be interested.

Thanks
Robert Blackwell


The Pittsburgh Perl Workshop is a low-cost technical conference held at the
Carnegie Mellon University's Oakland Campus. The workshop will be held on
October 11?12 2008.

* Classes

This year we are offering three great classes:

Dan Klein is back teaching From Zero to Perl.
http://pghpw.org/ppw2008/zerotoperl.html

Peter Scott - Maintaining Code While Staying Sane
http://pghpw.org/ppw2008/maintainingcode.html

brian d foy - Mastering Perl
http://pghpw.org/ppw2008/masteringperl.html

* Great Talks

The schedule can be found here http://pghpw.org/ppw2008/schedule.

* Hack-a-thons

We are having Pagtrick Michaud lead a Rakudo, (Perl 6) hack-a-thon.

* Bug Labs

Bug Labs, http://buglabs.net will be giving a talk and having a hands on
demo of their hardware.
We will also be giving details about a development grant for someone wanting
to develop something with perl with Bug Labs hardware.

* GPU/CUDA

Have you been hearing about coding with your Graphics Card?  Well if not you
will soon.  We are having a talk about coding with the GPU and a lab using
Nvida's Cuda technology.
http://www.nvidia.com/object/cuda_home.html

* Community

Come see old perl friends and make some new ones.  We will have plenty of
social activities at night.



--
Request pm.org Technical Support via support at pm.org

pm_groups mailing list
pm_groups at pm.org
http://mail.pm.org/mailman/listinfo/pm_groups




-- 
Jason
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From Chuck.Day at s1te.com  Mon Sep 29 07:08:45 2008
From: Chuck.Day at s1te.com (Chuck Day)
Date: Mon, 29 Sep 2008 10:08:45 -0400 (EDT)
Subject: [Columbus-pm] hash of hashes
In-Reply-To: <838543.32841.qm@web38404.mail.mud.yahoo.com>
References: <838543.32841.qm@web38404.mail.mud.yahoo.com>
Message-ID: <2434.75.118.24.175.1222697325.squirrel@WWW.S1TE.COM>

This is a forum.  We can start here with the basic anonymous hash:

$list = { key1 => value1,
          key2 => value2,
          key3 => value3 };



This is known as %list.



You can add to this:

$list{key4} = value4;




You can print these:

print $list{key4};




Loop through them:

for $key (keys %{ $list } )
{
         do something;
}




I prefer to put the keys into an array though because you can sort these better:

@keys = sort(keys %list);
foreach (@keys)
{
         do something;
}



Sorting it differently:

@keys = sort { $list{$b} cmp $list{$a} } (keys %list);
@keys = sort { $list{$b} <=> $list{$a} } (keys %list);





> Chuck,
>
> Wow could you share these notes in electronic fomat? At times I have issues grasping
> these data structures.
> BTW, will columbus.pm hold a Perl workshop in the spring? I read this on PPW's
> website. I went last year but cannot go this year...scheduling conflicts.
>
>
> thank you
>



From smithde at oclc.org  Mon Sep 29 08:04:16 2008
From: smithde at oclc.org (Smith,Devon)
Date: Mon, 29 Sep 2008 11:04:16 -0400
Subject: [Columbus-pm] hash of hashes
In-Reply-To: <2434.75.118.24.175.1222697325.squirrel@WWW.S1TE.COM>
References: <838543.32841.qm@web38404.mail.mud.yahoo.com>
	<2434.75.118.24.175.1222697325.squirrel@WWW.S1TE.COM>
Message-ID: <AA3DCFAA4E87BD40BBAA507B1C36CC3D164A6A@OAEXCH4SERVER.oa.oclc.org>

You need to be more careful about the difference between a hash and a
hash reference. You sorta get them mixed up in your examples.

#Hash:
%list = ( list1 => 'value1',
list2 => 'value2',
list3 => 'value3' );

#Hash Ref:
$list_ref = {
ref1 => 'value1',
ref2 => 'value2',
ref3 => 'value3'
};


#Hash:
$list{list4} = 'value4';

#Hash Ref:
$list_ref->{ref4} = 'value4';

#Hash:
for $key (keys %list ) {
    print "$key\n";
}

#Hash Ref:
for $key (keys %{ $list_ref } ) {
    print "$key\n";
}


-----Original Message-----
From: columbus-pm-bounces+smithde=oclc.org at pm.org
[mailto:columbus-pm-bounces+smithde=oclc.org at pm.org] On Behalf Of Chuck
Day
Sent: Monday, September 29, 2008 10:09 AM
To: Derek B. Smith
Cc: columbus-pm at pm.org
Subject: Re: [Columbus-pm] hash of hashes

This is a forum.  We can start here with the basic anonymous hash:

$list = { key1 => value1,
          key2 => value2,
          key3 => value3 };



This is known as %list.



You can add to this:

$list{key4} = value4;




You can print these:

print $list{key4};




Loop through them:

for $key (keys %{ $list } )
{
         do something;
}




I prefer to put the keys into an array though because you can sort these
better:

@keys = sort(keys %list);
foreach (@keys)
{
         do something;
}



Sorting it differently:

@keys = sort { $list{$b} cmp $list{$a} } (keys %list); @keys = sort {
$list{$b} <=> $list{$a} } (keys %list);





> Chuck,
>
> Wow could you share these notes in electronic fomat? At times I have 
> issues grasping these data structures.
> BTW, will columbus.pm hold a Perl workshop in the spring? I read this 
> on PPW's website. I went last year but cannot go this
year...scheduling conflicts.
>
>
> thank you
>


_______________________________________________
Columbus-pm mailing list
http://columbus.pm.org/
Columbus-pm at pm.org
http://mail.pm.org/mailman/listinfo/columbus-pm



From Chuck.Day at s1te.com  Mon Sep 29 07:54:09 2008
From: Chuck.Day at s1te.com (Chuck Day)
Date: Mon, 29 Sep 2008 10:54:09 -0400 (EDT)
Subject: [Columbus-pm] hash of hashes
In-Reply-To: <AA3DCFAA4E87BD40BBAA507B1C36CC3D164A6A@OAEXCH4SERVER.oa.oclc.org>
References: <838543.32841.qm@web38404.mail.mud.yahoo.com>
	<2434.75.118.24.175.1222697325.squirrel@WWW.S1TE.COM>
	<AA3DCFAA4E87BD40BBAA507B1C36CC3D164A6A@OAEXCH4SERVER.oa.oclc.org>
Message-ID: <2497.75.118.24.175.1222700049.squirrel@WWW.S1TE.COM>

Excellent Devon.  Every time I get into these I have to create a test script to get
them to work.  It's confusing because the -> can be assumed in with the reference
array but not assumed for the reference:

$list_ref = {  ref1 => [value1,value2]
};

These both are equal:

print "$list_ref->{ref1}->[1]\n";
print "$list_ref->{ref1}[1]\n";


But this is not permitted because then it's just a hash.  Makes sense!

print "$list_ref{ref1}->[1]\n";







> You need to be more careful about the difference between a hash and a
> hash reference. You sorta get them mixed up in your examples.
>
> #Hash:
> %list = ( list1 => 'value1',
> list2 => 'value2',
> list3 => 'value3' );
>
> #Hash Ref:
> $list_ref = {
> ref1 => 'value1',
> ref2 => 'value2',
> ref3 => 'value3'
> };
>
>
> #Hash:
> $list{list4} = 'value4';
>
> #Hash Ref:
> $list_ref->{ref4} = 'value4';
>
> #Hash:
> for $key (keys %list ) {
>     print "$key\n";
> }
>
> #Hash Ref:
> for $key (keys %{ $list_ref } ) {
>     print "$key\n";
> }
>
>
> -----Original Message-----
> From: columbus-pm-bounces+smithde=oclc.org at pm.org
> [mailto:columbus-pm-bounces+smithde=oclc.org at pm.org] On Behalf Of Chuck
> Day
> Sent: Monday, September 29, 2008 10:09 AM
> To: Derek B. Smith
> Cc: columbus-pm at pm.org
> Subject: Re: [Columbus-pm] hash of hashes
>
> This is a forum.  We can start here with the basic anonymous hash:
>
> $list = { key1 => value1,
>           key2 => value2,
>           key3 => value3 };
>
>
>
> This is known as %list.
>
>
>
> You can add to this:
>
> $list{key4} = value4;
>
>
>
>
> You can print these:
>
> print $list{key4};
>
>
>
>
> Loop through them:
>
> for $key (keys %{ $list } )
> {
>          do something;
> }
>
>
>
>
> I prefer to put the keys into an array though because you can sort these
> better:
>
> @keys = sort(keys %list);
> foreach (@keys)
> {
>          do something;
> }
>
>
>
> Sorting it differently:
>
> @keys = sort { $list{$b} cmp $list{$a} } (keys %list); @keys = sort {
> $list{$b} <=> $list{$a} } (keys %list);
>
>
>
>
>
>> Chuck,
>>
>> Wow could you share these notes in electronic fomat? At times I have
>> issues grasping these data structures.
>> BTW, will columbus.pm hold a Perl workshop in the spring? I read this
>> on PPW's website. I went last year but cannot go this
> year...scheduling conflicts.
>>
>>
>> thank you
>>
>
>
> _______________________________________________
> Columbus-pm mailing list
> http://columbus.pm.org/
> Columbus-pm at pm.org
> http://mail.pm.org/mailman/listinfo/columbus-pm
>
>
>