From darren at DarrenDuncan.net  Thu Feb  1 17:09:17 2007
From: darren at DarrenDuncan.net (Darren Duncan)
Date: Thu, 1 Feb 2007 17:09:17 -0800
Subject: [VPM] Tue, 2007 Feb 6th, 7:00PM - February RCSS meeting
Message-ID: <p06240801c1e83f252092@[192.168.1.101]>

Forwarded from the "Recreational Computer Science Society" mailing
list. -- Darren Duncan

-------------

Date: Thu, 1 Feb 2007 09:37:18 -0800
From: "Peter van Hardenberg" <pvh at pvh.ca>
To: reccompsci at googlegroups.com
Subject: [reccompsci] Meeting Announcement: February 6th, 7:00PM
List-Id: <reccompsci.googlegroups.com>
List-Post: <mailto:reccompsci at googlegroups.com>
List-Help: <mailto:reccompsci-help at googlegroups.com>
List-Unsubscribe: <http://googlegroups.com/group/reccompsci/subscribe>,
	<mailto:reccompsci-unsubscribe at googlegroups.com>


Location:
--
UVic, Engineering and Computer Science Building, Ground Floor, first
lecture hall to your right as you enter from the in-campus side of the
building. (The usual.)

Topics:
--
*Implicit Surfaces (Guest Speaker: Dr. Brian Wyvill)
Dr. Wyvill, one of UVic CSC's most recent faculty additions, will be
talking about his research into implicit surfaces. His project is a
way to describe a 3d shape as a series of transforms to a base shape
which eventually produces a final model. His scheme is known as
blobTree and plenty of examples and images can be found by searching
for that on Google and at his webpage.

*Compression Algorithms (Open Forum: Sergei Popov)
Sergei will, a particular focus on general purpose compression
algorithms, introduce the field in broad strokes by outlining a few of
the more common algorithms. From there, the floor will open up to
discussion.

*Application Widget Toolkits (Open Forum: Sunpreet Jassal)
With a focus on the C++ widget toolkit Qt, Sunpreet will open the
discussion to topics of application interface design. What widget sets
are better, which are worse, and why are they all so damn same-y after
all these years?

Notes:
--
This month's RCSS meeting will be a slightly different format from the
last few months. We will still have a guest presenter in the form of
Brian Wyvill, but the actual presentations will be less presentious*
and more a chance to pool our collective knowledge. Personally, I'm
excited as can be about this -- I trying to explain to a group things
they know more than me about.

Angela is working on a RCSS webpage, as those of you who follow the
general mailing list may have noticed. Hopefully it will be online by
the next meeting. If you have specific requests related to that, there
is an ongoing thread.

There is a Victoria Ruby Language group starting up these days. If you
are, or want to be, a Rubinista* watch this space for an official
group announcement. The first meeting will be some time in the next
few weeks.

-pvh

* inventing words is a time-honored tradition and one of my favorite hobbies
-- 
Peter van Hardenberg
Victoria, BC, Canada
"Everything was beautiful, and nothing hurt." -- Kurt Vonnegut

From darren at DarrenDuncan.net  Sun Feb 11 15:24:36 2007
From: darren at DarrenDuncan.net (Darren Duncan)
Date: Sun, 11 Feb 2007 15:24:36 -0800
Subject: [VPM] probe
Message-ID: <p06240805c1f5561d5e1d@[192.168.1.101]>

this is a test of the vpm list

From jeremygwa at hotmail.com  Sun Feb 11 15:27:31 2007
From: jeremygwa at hotmail.com (Jer A)
Date: Sun, 11 Feb 2007 15:27:31 -0800
Subject: [VPM] programmically create keys and vals for anonhash
Message-ID: <p06240807c1f556b982ab@[192.168.1.101]>

Darren is redirecting this to the list, as my own probe succeeded.
------------------

Hello Darren, I am resending you this message directly, as there is 
something wrong with the perl mailing-list.

-------------------
Hi All,

how do i programmically create a hash ref, without having to code the 
key and value pairs?
eg.  $data = {Key1 => $val1,Key2 => $val2,Key3 => $val3} ;
suppose I create an Array with key and value pairs,....the number of 
keys and values are only known at run time.
eg.
push(@HEADERS,{ KEYNAME => $1, KEYVAL => $2});

With the information in @HEADERS, how do I use this to create a 
hashref, with as many key/val pairs in the array, without manually 
coding it?

$data = { "KEY" => "VAL", ... etc };


Thanks in advance for your help.

-Jer A.

From abez at abez.ca  Sun Feb 11 15:39:20 2007
From: abez at abez.ca (Abram Hindle)
Date: Sun, 11 Feb 2007 18:39:20 -0500
Subject: [VPM] programmically create keys and vals for anonhash
In-Reply-To: <p06240807c1f556b982ab@[192.168.1.101]>
References: <p06240807c1f556b982ab@[192.168.1.101]>
Message-ID: <45CFA928.905@abez.ca>

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

You can convert an array or list to hash just by assigning it:

%hash = qw( key1 value1 key2 value2 key3 value3);

Hashes can be formed from lists and array of an even number of elements
where keys and values alternate.

	$hash{$1} = $2; #works

	push @headers,$1,$2; #works
	...
	%hash = @headers;
	
see perldoc perldsc

abram

Jer A (by way of Darren Duncan) wrote:
> Darren is redirecting this to the list, as my own probe succeeded.
> ------------------
> 
> Hello Darren, I am resending you this message directly, as there is 
> something wrong with the perl mailing-list.
> 
> -------------------
> Hi All,
> 
> how do i programmically create a hash ref, without having to code the 
> key and value pairs?
> eg.  $data = {Key1 => $val1,Key2 => $val2,Key3 => $val3} ;
> suppose I create an Array with key and value pairs,....the number of 
> keys and values are only known at run time.
> eg.
> push(@HEADERS,{ KEYNAME => $1, KEYVAL => $2});
> 
> With the information in @HEADERS, how do I use this to create a 
> hashref, with as many key/val pairs in the array, without manually 
> coding it?
> 
> $data = { "KEY" => "VAL", ... etc };
> 
> 
> Thanks in advance for your help.
> 
> -Jer A.
> _______________________________________________
> Victoria-pm mailing list
> Victoria-pm at pm.org
> http://mail.pm.org/mailman/listinfo/victoria-pm
> 
>  
>  ** ACCEPT: CRM114 PASS osb unique microgroom Matcher ** 
> CLASSIFY succeeds; success probability: 1.0000  pR: 34.7366
> Best match to file #0 (/home/abez/crm/nonspam.css) prob: 1.0000  pR: 34.7366  
> Total features in input file: 3312
> #0 (/home/abez/crm/nonspam.css): features: 378059, hits: 4066312, prob: 1.00e+00, pR:  34.74 
> #1 (/home/abez/crm/spam.css): features: 2082284, hits: 3381458, prob: 1.83e-35, pR: -34.74 
>  

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Version: GnuPG v1.4.4 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFFz6konOrfa1yW8IURApEOAKCowGUmzAUgsc9FzOVy3nSstE4H8wCggIz/
RZQKC2JTRJpTQ/87wSVrmXo=
=RX5T
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From abez at abez.ca  Sun Feb 11 18:13:57 2007
From: abez at abez.ca (Abram Hindle)
Date: Sun, 11 Feb 2007 21:13:57 -0500
Subject: [VPM] programmically create keys and vals for anonhash
In-Reply-To: <BAY113-F7BD46320AFC1483AEE6DBB2910@phx.gbl>
References: <BAY113-F7BD46320AFC1483AEE6DBB2910@phx.gbl>
Message-ID: <45CFCD65.2010804@abez.ca>

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

$hash = { qw( ... ) } ;
$hash = { @tuple_array };

%hash = qw( ... );
$hash = \%hash;
$hash = { %hash };

push @arr, \%hash;
push @arr, { %hash };
Those should all work unless I forgot something, either way see perldoc
perlref for more info.

abram

Jer A wrote:
> thank you Abram for your response.
> 
> if I can create a hash like you say:
> %hash = qw( key1 value1 key2 value2 key3 value3);
> can I still access the hash with a pointer "->", if the entire %hash
> were an element in an array?
> eg.
> foreach(@arr)
> {
>  ... $_->{key1} etc?
> }
> 
> Thanks in advance,
> -Jer A.
> 
>> From: Abram Hindle <abez at abez.ca>
>> To: "\"Jer A\" (by way of Darren Duncan)"
>> <jeremygwa at hotmail.com>,        victoria-pm at pm.org
>> Subject: Re: [VPM] programmically create keys and vals for anonhash
>> Date: Sun, 11 Feb 2007 18:39:20 -0500
>>
> You can convert an array or list to hash just by assigning it:
> 
> %hash = qw( key1 value1 key2 value2 key3 value3);
> 
> Hashes can be formed from lists and array of an even number of elements
> where keys and values alternate.
> 
>     $hash{$1} = $2; #works
> 
>     push @headers,$1,$2; #works
>     ...
>     %hash = @headers;
> 
> see perldoc perldsc
> 
> abram
> 
> Jer A (by way of Darren Duncan) wrote:
>> Darren is redirecting this to the list, as my own probe succeeded.
>> ------------------
> 
>> Hello Darren, I am resending you this message directly, as there is
>> something wrong with the perl mailing-list.
> 
>> -------------------
>> Hi All,
> 
>> how do i programmically create a hash ref, without having to code the
>> key and value pairs?
>> eg.  $data = {Key1 => $val1,Key2 => $val2,Key3 => $val3} ;
>> suppose I create an Array with key and value pairs,....the number of
>> keys and values are only known at run time.
>> eg.
>> push(@HEADERS,{ KEYNAME => $1, KEYVAL => $2});
> 
>> With the information in @HEADERS, how do I use this to create a
>> hashref, with as many key/val pairs in the array, without manually
>> coding it?
> 
>> $data = { "KEY" => "VAL", ... etc };
> 
> 
>> Thanks in advance for your help.
> 
>> -Jer A.
>> _______________________________________________
>> Victoria-pm mailing list
>> Victoria-pm at pm.org
>> http://mail.pm.org/mailman/listinfo/victoria-pm
> 
> 
>>  ** ACCEPT: CRM114 PASS osb unique microgroom Matcher **
>> CLASSIFY succeeds; success probability: 1.0000  pR: 34.7366
>> Best match to file #0 (/home/abez/crm/nonspam.css) prob: 1.0000  pR:
> 34.7366
>> Total features in input file: 3312
>> #0 (/home/abez/crm/nonspam.css): features: 378059, hits: 4066312,
> prob: 1.00e+00, pR:  34.74
>> #1 (/home/abez/crm/spam.css): features: 2082284, hits: 3381458,
> prob: 1.83e-35, pR: -34.74
> 
> 

> _________________________________________________________________
> Buy what you want when you want it on Sympatico / MSN Shopping 
> http://shopping.sympatico.msn.ca/content/shp/?ctId=2,ptnrid=176,ptnrdata=081805



> ** ACCEPT: CRM114 PASS osb unique microgroom Matcher ** CLASSIFY
> succeeds; success probability: 1.0000  pR: 24.1569
> Best match to file #0 (/home/abez/crm/nonspam.css) prob: 1.0000  pR:
> 24.1569  Total features in input file: 5208
> #0 (/home/abez/crm/nonspam.css): features: 378059, hits: 7129858, prob:
> 1.00e+00, pR:  24.16 #1 (/home/abez/crm/spam.css): features: 2082284,
> hits: 4957360, prob: 6.97e-25, pR: -24.16

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Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

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From Peter at PSDT.com  Mon Feb 12 10:04:27 2007
From: Peter at PSDT.com (Peter Scott)
Date: Mon, 12 Feb 2007 10:04:27 -0800
Subject: [VPM] programmically create keys and vals for anonhash
In-Reply-To: <p06240807c1f556b982ab@[192.168.1.101]>
References: <p06240807c1f556b982ab@[192.168.1.101]>
Message-ID: <6.2.3.4.2.20070212100117.02802b40@mail.webquarry.com>

At 03:27 PM 2/11/2007, Jer A wrote:
>how do i programmically create a hash ref, without having to code the
>key and value pairs?
>eg.  $data = {Key1 => $val1,Key2 => $val2,Key3 => $val3} ;
>suppose I create an Array with key and value pairs,....the number of
>keys and values are only known at run time.
>eg.
>push(@HEADERS,{ KEYNAME => $1, KEYVAL => $2});

                ^ makes hashref              ^

>With the information in @HEADERS, how do I use this to create a
>hashref, with as many key/val pairs in the array, without manually
>coding it?
>
>$data = { "KEY" => "VAL", ... etc };

So @HEADERS contains hashrefs and you want to flatten them into a 
hashref containing all of their contents, is that it?

$data = { map %$_, @HEADERS };

-- 
Peter Scott
Pacific Systems Design Technologies
http://www.perldebugged.com/
http://www.perlmedic.com/


From Peter at PSDT.com  Mon Feb 12 10:26:00 2007
From: Peter at PSDT.com (Peter Scott)
Date: Mon, 12 Feb 2007 10:26:00 -0800
Subject: [VPM] Victoria Perl Mongers meeting February 20
Message-ID: <6.2.3.4.2.20070205102522.02754e40@mail.webquarry.com>

Victoria.pm will meet at its regular date, time, and place at 7:00 pm 
on Tuesday, February 20, at UVic in ECS (Engineering Computer Science 
building) room 660 (see http://www.uvic.ca/maps/index.html).

The theme: "Everything you wanted to know about arrays and hashes but 
were afraid to ask."  I will deliver presentations that return to some 
basics as requested by survey respondees.  The topics for this meeting will be:

   Array operations
   Introduction to hashes

While aimed at the beginner, there will be a few things calculated to 
interest more knowledgeable users, and the opportunity to ask any type 
of question.  The primary customer of this presentation remains the 
novice, even people with no Perl experience at all.  Fresh meat welcome 
:-)  And a free copy of the Fall Perl Review to a random attendee.

[This was to have been the topic for the January meeting, which was 
cancelled due to weather and road conditions.]

(Courtesy copy to VLUG and VOSSOC members by permission of the list 
managers.  Victoria.pm's home page is <http://victoria.pm.org/>.)
-- 
Peter Scott
Pacific Systems Design Technologies
http://www.perldebugged.com/
http://www.perlmedic.com/


From Peter at PSDT.com  Mon Feb 19 01:27:00 2007
From: Peter at PSDT.com (Peter Scott)
Date: Mon, 19 Feb 2007 01:27:00 -0800
Subject: [VPM] Victoria Perl Mongers meeting tomorrow
Message-ID: <6.2.3.4.2.20070205102656.0264e020@mail.webquarry.com>

Victoria.pm will meet at its regular date, time, and place at 7:00 pm 
tomorrow,  Tuesday, February 20, at UVic in ECS (Engineering Computer 
Science building) room 660 (see http://www.uvic.ca/maps/index.html).

The theme: "Everything you wanted to know about arrays and hashes but 
were afraid to ask."  I will deliver presentations that return to some 
basics as requested by survey respondees.  The topics for this meeting will be:

   Array operations
   Introduction to hashes

While aimed at the beginner, there will be a few things calculated to 
interest more knowledgeable users, and the opportunity to ask any type 
of question.  The primary customer of this presentation remains the 
novice, even people with no Perl experience at all.  Fresh meat welcome 
:-)  And a free copy of the Fall Perl Review to a random attendee.

[This was to have been the topic for the January meeting, which was 
cancelled due to weather and road conditions.]

(Courtesy copy to VLUG and VOSSOC members by permission of the list 
managers.  Victoria.pm's home page is <http://victoria.pm.org/>.)
-- 
Peter Scott
Pacific Systems Design Technologies
http://www.perldebugged.com/
http://www.perlmedic.com/


From Peter at PSDT.com  Tue Feb 20 14:36:57 2007
From: Peter at PSDT.com (Peter Scott)
Date: Tue, 20 Feb 2007 14:36:57 -0800
Subject: [VPM] Perl's place in the universe
Message-ID: <6.2.3.4.2.20070220143526.027b2a78@mail.webquarry.com>

http://imgs.xkcd.com/comics/lisp.jpg

See you tonight!
-- 
Peter Scott
Pacific Systems Design Technologies
http://www.perldebugged.com/
http://www.perlmedic.com/