From gizmo at purdue.edu  Fri Nov 12 11:20:43 2010
From: gizmo at purdue.edu (Joe Kline)
Date: Fri, 12 Nov 2010 14:20:43 -0500
Subject: [Purdue-pm] Modern Perl: the book is out
Message-ID: <4CDD938B.9000408@purdue.edu>

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http://www.modernperlbooks.com/mt/2010/11/the-book-is-out.html

joe
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From jacoby at purdue.edu  Fri Nov 12 11:32:29 2010
From: jacoby at purdue.edu (Dave jacoby)
Date: Fri, 12 Nov 2010 14:32:29 -0500
Subject: [Purdue-pm] Modern Perl: the book is out
In-Reply-To: <4CDD938B.9000408@purdue.edu>
References: <4CDD938B.9000408@purdue.edu>
Message-ID: <4CDD964D.8050003@purdue.edu>

Have the PDF downloaded already. Like I need ANOTHER THING for my 
reading list.

On 11/12/2010 02:20 PM, Joe Kline wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> http://www.modernperlbooks.com/mt/2010/11/the-book-is-out.html
>
> joe
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> Comment: Using GnuPG with Red Hat - http://enigmail.mozdev.org
>
> iD8DBQFM3ZOKb0mzA2gRTpkRAl5wAJ9nONArCjGKUFZEWd56MBvVSHFIvACfW0cM
> YwKdv4ZCEskE3Q8LMn2Ol1U=
> =lh1x
> -----END PGP SIGNATURE-----
> _______________________________________________
> Purdue-pm mailing list
> Purdue-pm at pm.org
> http://mail.pm.org/mailman/listinfo/purdue-pm


-- 
Dave Jacoby                         Address: WSLR S049
Code Maker                          Mail:    jacoby at purdue.edu
Purdue University                   Phone:   765.49.67368

From mdw at purdue.edu  Fri Nov 12 12:00:18 2010
From: mdw at purdue.edu (Mark Daniel Ward)
Date: Fri, 12 Nov 2010 15:00:18 -0500
Subject: [Purdue-pm] Modern Perl: the book is out
In-Reply-To: <4CDD964D.8050003@purdue.edu>
References: <4CDD938B.9000408@purdue.edu> <4CDD964D.8050003@purdue.edu>
Message-ID: <4CDD9CD2.9080408@purdue.edu>

Dear Dave,
     Where do we get the link for the pdf download?  I'm sure that this 
is an awesome book.
Mark


On 11/12/10 2:32 PM, Dave jacoby wrote:
> Have the PDF downloaded already. Like I need ANOTHER THING for my 
> reading list.
>
> On 11/12/2010 02:20 PM, Joe Kline wrote:
>> -----BEGIN PGP SIGNED MESSAGE-----
>> Hash: SHA1
>>
>> http://www.modernperlbooks.com/mt/2010/11/the-book-is-out.html
>>
>> joe
>> -----BEGIN PGP SIGNATURE-----
>> Version: GnuPG v1.4.5 (GNU/Linux)
>> Comment: Using GnuPG with Red Hat - http://enigmail.mozdev.org
>>
>> iD8DBQFM3ZOKb0mzA2gRTpkRAl5wAJ9nONArCjGKUFZEWd56MBvVSHFIvACfW0cM
>> YwKdv4ZCEskE3Q8LMn2Ol1U=
>> =lh1x
>> -----END PGP SIGNATURE-----
>> _______________________________________________
>> Purdue-pm mailing list
>> Purdue-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/purdue-pm
>
>

From bradley.d.andersen at gmail.com  Fri Nov 12 12:03:59 2010
From: bradley.d.andersen at gmail.com (Bradley Andersen)
Date: Fri, 12 Nov 2010 15:03:59 -0500
Subject: [Purdue-pm] Modern Perl: the book is out
In-Reply-To: <4CDD9CD2.9080408@purdue.edu>
References: <4CDD938B.9000408@purdue.edu> <4CDD964D.8050003@purdue.edu>
	<4CDD9CD2.9080408@purdue.edu>
Message-ID: <AANLkTinYrogVddXpMmBtPZ=Y-O5aXFJL5Ji208=htWc4@mail.gmail.com>

http://www.onyxneon.com/books/modern_perl/modern_perl_a4.pdf
--
You can't hold a man down without staying down with him.
? ? -- Booker T. Washington



On Fri, Nov 12, 2010 at 3:00 PM, Mark Daniel Ward <mdw at purdue.edu> wrote:
> Dear Dave,
> ? ?Where do we get the link for the pdf download? ?I'm sure that this is an
> awesome book.
> Mark
>
>
> On 11/12/10 2:32 PM, Dave jacoby wrote:
>>
>> Have the PDF downloaded already. Like I need ANOTHER THING for my reading
>> list.
>>
>> On 11/12/2010 02:20 PM, Joe Kline wrote:
>>>
>>> -----BEGIN PGP SIGNED MESSAGE-----
>>> Hash: SHA1
>>>
>>> http://www.modernperlbooks.com/mt/2010/11/the-book-is-out.html
>>>
>>> joe
>>> -----BEGIN PGP SIGNATURE-----
>>> Version: GnuPG v1.4.5 (GNU/Linux)
>>> Comment: Using GnuPG with Red Hat - http://enigmail.mozdev.org
>>>
>>> iD8DBQFM3ZOKb0mzA2gRTpkRAl5wAJ9nONArCjGKUFZEWd56MBvVSHFIvACfW0cM
>>> YwKdv4ZCEskE3Q8LMn2Ol1U=
>>> =lh1x
>>> -----END PGP SIGNATURE-----
>>> _______________________________________________
>>> Purdue-pm mailing list
>>> Purdue-pm at pm.org
>>> http://mail.pm.org/mailman/listinfo/purdue-pm
>>
>>
> _______________________________________________
> Purdue-pm mailing list
> Purdue-pm at pm.org
> http://mail.pm.org/mailman/listinfo/purdue-pm
>

From mdw at purdue.edu  Fri Nov 12 12:11:32 2010
From: mdw at purdue.edu (Mark Daniel Ward)
Date: Fri, 12 Nov 2010 15:11:32 -0500
Subject: [Purdue-pm] Modern Perl: the book is out
In-Reply-To: <AANLkTinYrogVddXpMmBtPZ=Y-O5aXFJL5Ji208=htWc4@mail.gmail.com>
References: <4CDD938B.9000408@purdue.edu>	<4CDD964D.8050003@purdue.edu>	<4CDD9CD2.9080408@purdue.edu>
	<AANLkTinYrogVddXpMmBtPZ=Y-O5aXFJL5Ji208=htWc4@mail.gmail.com>
Message-ID: <4CDD9F74.9010405@purdue.edu>

Dear Bradley,
     Thank you very much.  Have a nice weekend!
Mark


On 11/12/10 3:03 PM, Bradley Andersen wrote:
> http://www.onyxneon.com/books/modern_perl/modern_perl_a4.pdf
> --
> You can't hold a man down without staying down with him.
>      -- Booker T. Washington
>
>
>
> On Fri, Nov 12, 2010 at 3:00 PM, Mark Daniel Ward<mdw at purdue.edu>  wrote:
>> Dear Dave,
>>     Where do we get the link for the pdf download?  I'm sure that this is an
>> awesome book.
>> Mark
>>
>>
>> On 11/12/10 2:32 PM, Dave jacoby wrote:
>>> Have the PDF downloaded already. Like I need ANOTHER THING for my reading
>>> list.
>>>
>>> On 11/12/2010 02:20 PM, Joe Kline wrote:
>>>> -----BEGIN PGP SIGNED MESSAGE-----
>>>> Hash: SHA1
>>>>
>>>> http://www.modernperlbooks.com/mt/2010/11/the-book-is-out.html
>>>>
>>>> joe
>>>> -----BEGIN PGP SIGNATURE-----
>>>> Version: GnuPG v1.4.5 (GNU/Linux)
>>>> Comment: Using GnuPG with Red Hat - http://enigmail.mozdev.org
>>>>
>>>> iD8DBQFM3ZOKb0mzA2gRTpkRAl5wAJ9nONArCjGKUFZEWd56MBvVSHFIvACfW0cM
>>>> YwKdv4ZCEskE3Q8LMn2Ol1U=
>>>> =lh1x
>>>> -----END PGP SIGNATURE-----
>>>> _______________________________________________
>>>> Purdue-pm mailing list
>>>> Purdue-pm at pm.org
>>>> http://mail.pm.org/mailman/listinfo/purdue-pm
>>>
>> _______________________________________________
>> Purdue-pm mailing list
>> Purdue-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/purdue-pm
>>

From jacoby at purdue.edu  Fri Nov 12 12:30:22 2010
From: jacoby at purdue.edu (Dave jacoby)
Date: Fri, 12 Nov 2010 15:30:22 -0500
Subject: [Purdue-pm] Modern Perl: the book is out
In-Reply-To: <AANLkTinYrogVddXpMmBtPZ=Y-O5aXFJL5Ji208=htWc4@mail.gmail.com>
References: <4CDD938B.9000408@purdue.edu>	<4CDD964D.8050003@purdue.edu>	<4CDD9CD2.9080408@purdue.edu>
	<AANLkTinYrogVddXpMmBtPZ=Y-O5aXFJL5Ji208=htWc4@mail.gmail.com>
Message-ID: <4CDDA3DE.2010704@purdue.edu>

On 11/12/2010 03:03 PM, Bradley Andersen wrote:
> http://www.onyxneon.com/books/modern_perl/modern_perl_a4.pdf

I'll point out this bit from chromatic's blog 
(http://www.modernperlbooks.com/):

	These are free of cost and free of DRM, but
	not free of obligation. Your duty is to share
	the book with everyone who needs it. Give away
	the PDFs (and the ePub) far and wide. Write reviews.
	Cite it on the beginners mailing list. Seed it
	on BitTorrent. Host it on your own site.

There's also a letter-sized format.

-- 
Dave Jacoby                         Address: WSLR S049
Code Maker                          Mail:    jacoby at purdue.edu
Purdue University                   Phone:   765.49.67368

From gizmo at purdue.edu  Fri Nov 12 12:50:44 2010
From: gizmo at purdue.edu (Joe Kline)
Date: Fri, 12 Nov 2010 15:50:44 -0500
Subject: [Purdue-pm] Modern Perl: the book is out
In-Reply-To: <4CDDA3DE.2010704@purdue.edu>
References: <4CDD938B.9000408@purdue.edu>	<4CDD964D.8050003@purdue.edu>	<4CDD9CD2.9080408@purdue.edu>	<AANLkTinYrogVddXpMmBtPZ=Y-O5aXFJL5Ji208=htWc4@mail.gmail.com>
	<4CDDA3DE.2010704@purdue.edu>
Message-ID: <4CDDA8A4.5080602@purdue.edu>

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Dave jacoby wrote:
> On 11/12/2010 03:03 PM, Bradley Andersen wrote:
>> http://www.onyxneon.com/books/modern_perl/modern_perl_a4.pdf
> 
> I'll point out this bit from chromatic's blog
> (http://www.modernperlbooks.com/):
> 
>     These are free of cost and free of DRM, but
>     not free of obligation. Your duty is to share
>     the book with everyone who needs it. Give away
>     the PDFs (and the ePub) far and wide. Write reviews.
>     Cite it on the beginners mailing list. Seed it
>     on BitTorrent. Host it on your own site.
> 
> There's also a letter-sized format.
> 

But notice the copyright:


http://creativecommons.org/licenses/by-nc-nd/3.0/


Should affect what he intends but I'm not sure how familiar everyone is
with the various Creative Commons copyright licenses.

joe
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From jacoby at purdue.edu  Mon Nov 15 06:10:56 2010
From: jacoby at purdue.edu (Dave jacoby)
Date: Mon, 15 Nov 2010 09:10:56 -0500
Subject: [Purdue-pm] Meeting Reminder
Message-ID: <4CE13F70.5080308@purdue.edu>

We meet again, tomorrow at 11:30am-1pm in Whistler 116.

I don't know if we have anything planned, but we can usually come with 
ad-hoc discussions that are interesting.

-- 
Dave Jacoby                         Address: WSLR S049
Code Maker                          Mail:    jacoby at purdue.edu
Purdue University                   Phone:   765.49.67368

From gizmo at purdue.edu  Mon Nov 15 06:29:15 2010
From: gizmo at purdue.edu (Joe Kline)
Date: Mon, 15 Nov 2010 09:29:15 -0500
Subject: [Purdue-pm] Meeting Reminder
In-Reply-To: <4CE13F70.5080308@purdue.edu>
References: <4CE13F70.5080308@purdue.edu>
Message-ID: <4CE143BB.4080703@purdue.edu>

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Hash: SHA1

Dave jacoby wrote:
> We meet again, tomorrow at 11:30am-1pm in Whistler 116.
> 
> I don't know if we have anything planned, but we can usually come with
> ad-hoc discussions that are interesting.
> 

I'll be out tomorrow.

I was thinking about showing off Lacuna Expanse and maybe Padre.

I haven't had a chance to read _Modern Perl_ yet but maybe for next month.

joe
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From jacoby at purdue.edu  Wed Nov 24 10:57:02 2010
From: jacoby at purdue.edu (Dave jacoby)
Date: Wed, 24 Nov 2010 13:57:02 -0500
Subject: [Purdue-pm] Can do better with map somehow?
Message-ID: <4CED5FFE.3030507@purdue.edu>

So, I have a function that dumps a DB into a hashref. Assume the dump 
looks like a long version of this.

$VAR1 = {
	'a' => {
		'foo' => 1 ,
		'bar' => 'Cheers' ,
		} ,
	'b' => {
		'foo' => 3 ,
		'bar' => 'Crow' ,
		} ,
	'c' => {
		'foo' => 1 ,
		'bar' => 'Neon Cactus' ,
		} ,
	...
	}

I would love to have that same hashref, except only containing only 
parts where 'foo' == 1. I can certainly loop it, but I'm learning more 
and more about map and it's finding its way into much more of my code.

my $second ; %$second = map { $_ => $first->{$_} } keys %$first ; gets 
me a full copy, but I can't imagine a way to get grep to work for me and 
sort can just organize 'em. Is there a cool thing I'm missing?

-- 
Dave Jacoby                         Address: WSLR S049
Code Maker                          Mail:    jacoby at purdue.edu
Purdue University                   Phone:   765.49.67368

From jacoby at purdue.edu  Wed Nov 24 12:40:25 2010
From: jacoby at purdue.edu (Dave Jacoby)
Date: Wed, 24 Nov 2010 15:40:25 -0500
Subject: [Purdue-pm] Can do better with map somehow?
In-Reply-To: <4CED5FFE.3030507@purdue.edu>
References: <4CED5FFE.3030507@purdue.edu>
Message-ID: <4CED7839.8060804@purdue.edu>

Rick really expanded my knowledge on this one, but it was offline, so 
anyone who might benefit from the response missed it.

First, to clarify my terms. By "map", I meant, "using map {} @something 
rather than using for ( @something ) ". I've done that stuff for ten 
years, and I can do it, but it seems map is much more powerful and concise.

My new solution:

     my $first = {
         'a' => { 'foo' => 1, 'bar' => 'Cheers', },
         'b' => { 'foo' => 3, 'bar' => 'Crow', },
         'c' => { 'foo' => 1, 'bar' => 'Neon Cactus', } } ;
     my $second ;
     %$second =
         map { $_, $first->{ $_ } }
         grep { $first->{ $_ }->{ foo } == 1 } # <-- WOW!
         keys %$first ;
     say Dumper $second ;

I never knew you could do grep like that. I know now.

On 11/24/2010 01:57 PM, Dave jacoby wrote:
> So, I have a function that dumps a DB into a hashref. Assume the dump
> looks like a long version of this.
>
> $VAR1 = {
> 'a' => {
> 'foo' => 1 ,
> 'bar' => 'Cheers' ,
> } ,
> 'b' => {
> 'foo' => 3 ,
> 'bar' => 'Crow' ,
> } ,
> 'c' => {
> 'foo' => 1 ,
> 'bar' => 'Neon Cactus' ,
> } ,
> ...
> }
>
> I would love to have that same hashref, except only containing only
> parts where 'foo' == 1. I can certainly loop it, but I'm learning more
> and more about map and it's finding its way into much more of my code.
>
> my $second ; %$second = map { $_ => $first->{$_} } keys %$first ; gets
> me a full copy, but I can't imagine a way to get grep to work for me and
> sort can just organize 'em. Is there a cool thing I'm missing?
>


-- 
Dave Jacoby                         Address: WSLR S049
Code Maker                          Mail:    jacoby at purdue.edu
Purdue University                   Phone:   765.49.67368

From mark at ecn.purdue.edu  Sun Nov 28 12:36:57 2010
From: mark at ecn.purdue.edu (Mark Senn)
Date: Sun, 28 Nov 2010 15:36:57 -0500
Subject: [Purdue-pm] Can do better with map somehow?
In-Reply-To: <4CED7839.8060804@purdue.edu>
References: <4CED5FFE.3030507@purdue.edu> <4CED7839.8060804@purdue.edu>
Message-ID: <6523.1290976617@pier.ecn.purdue.edu>

Dave Jacoby <jacoby at purdue.edu> wrote:
    My new solution:

    my $first = {
        'a' => { 'foo' => 1, 'bar' => 'Cheers', },
        'b' => { 'foo' => 3, 'bar' => 'Crow', },
        'c' => { 'foo' => 1, 'bar' => 'Neon Cactus', } } ;
    my $second ;
    %$second =
        map { $_, $first->{ $_ } }
        grep { $first->{ $_ }->{ foo } == 1 } # <-- WOW!
        keys %$first ;
    say Dumper $second ;

I think (but don't know for sure) Perl 5 will do the grep and
save all those results and then do the map.  For this small
example it probably won't matter much but if %$first was very
large the above may run out of memory.

I prefer this:

my $third;
map  { ($first->{$_}->{foo} == 1)  and  $third->{$_} = $first->{$_} }
    keys %$first;
say Dumper $third;

-mark

From jacoby at purdue.edu  Mon Nov 29 06:34:45 2010
From: jacoby at purdue.edu (Dave Jacoby)
Date: Mon, 29 Nov 2010 09:34:45 -0500
Subject: [Purdue-pm] Can do better with map somehow?
In-Reply-To: <6523.1290976617@pier.ecn.purdue.edu>
References: <4CED5FFE.3030507@purdue.edu> <4CED7839.8060804@purdue.edu>
	<6523.1290976617@pier.ecn.purdue.edu>
Message-ID: <4CF3BA05.6000904@purdue.edu>

There is something to that. I don't speak "map" as fluently as I should yet.

On 11/28/2010 03:36 PM, Mark Senn wrote:
> Dave Jacoby<jacoby at purdue.edu>  wrote:
>      My new solution:
>
>      my $first = {
>          'a' =>  { 'foo' =>  1, 'bar' =>  'Cheers', },
>          'b' =>  { 'foo' =>  3, 'bar' =>  'Crow', },
>          'c' =>  { 'foo' =>  1, 'bar' =>  'Neon Cactus', } } ;
>      my $second ;
>      %$second =
>          map { $_, $first->{ $_ } }
>          grep { $first->{ $_ }->{ foo } == 1 } #<-- WOW!
>          keys %$first ;
>      say Dumper $second ;
>
> I think (but don't know for sure) Perl 5 will do the grep and
> save all those results and then do the map.  For this small
> example it probably won't matter much but if %$first was very
> large the above may run out of memory.
>
> I prefer this:
>
> my $third;
> map  { ($first->{$_}->{foo} == 1)  and  $third->{$_} = $first->{$_} }
>      keys %$first;
> say Dumper $third;
>
> -mark


-- 
Dave Jacoby                         Address: WSLR S049
Code Maker                          Mail:    jacoby at purdue.edu
Purdue University                   Phone:   765.49.67368