Perl Introduction - Speaker Deck

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PERL Keeping Developers Happy Since 1987 Wednesday, December 21, 2011

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AGENDA Perl’s 7 Wonders The Perl Story Online Resources Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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SIMPLE print “Hello World” Wednesday, December 21, 2011

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PERL KEY IDEAS Loosely Typed Powerful Text Processing Capabilities Simple: Write Only What You Need Creative: There’s more than one way to do it Modern Object Oriented and Maintainable Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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OO PERL use MooseX::Declare; class Person { has ‘name’, isa => ‘String’, is => ‘ro’; has ‘age’, isa => ‘Num’, is => ‘rw’; } Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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TDD PERL Perl is very TDD friendly Writing a test case is a breeze Results in clean code Wednesday, December 21, 2011

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TDD PERL A Unit Test In Perl use Test::More; is( power(2, 3), 8 ); done_testing; Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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CPAN CPAN is an archive of over 20,000 modules of perl software. CPAN modules are actively maintain and developed by the community, and for the community. CPAN is also a command line tool to automatically install modules from the archive. Wednesday, December 21, 2011

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CPAN Useful CPAN Modules: Spreadsheet::ParseExcel, Spreadsheet::WriteExcel Log::Fine, Log::Fast, Log::Tiny DBIx::Class, Moose, Dancer Try::Tiny, File::Slurp CPAN provides the tools to focus on YOUR problem. Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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PERL IS WEIRD The Spaceship Operator <=> Wednesday, December 21, 2011

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PERL IS WEIRD The inchworm Operator ~~ Wednesday, December 21, 2011

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PERL IS WEIRD use Acme::Labs; BRAIN: "Pinky, are you pondering what I'm pondering?" PINKY: "I think so, Brain, but ﬁrst you'd have to take that whole bridge apart, wouldn't you?" zort eGAD ZORt zOrt egAD " nARf EGaD EgAD egAD NARF zOrt Zort egAD zorT ZOrT eGAD narf ZOrT eGAD zoRt narF ZORT ZoRT ZoRt ZOrT eGAD\ zOrt"; Valid Perl Wednesday, December 21, 2011

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PERL IS WEIRD Valid Perl Wednesday, December 21, 2011

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PERL IS WEIRD And it can even count therbligs use Acme::Mobile::Therbligs; print count_therbligs(“hello world”); Will print 26 Valid Perl Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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PERL IS EVERYWHERE Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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PERL MONGERS AROUND THE WORLD Wednesday, December 21, 2011

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CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011

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THE PERL STORY Wednesday, December 21, 2011

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PERL HISTORY Dec. 18, 1987. Perl 1.0 Wednesday, December 21, 2011

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PERL HISTORY June 5, 1988. Perl 2.0 Add Henry Spencer’s Regexp Library Wednesday, December 21, 2011

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PERL HISTORY Oct 18, 1989. Perl 3.0. Add Support for Binary Data Wednesday, December 21, 2011

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PERL HISTORY Mar 21, 1991. Perl 4.0 Not too much happened, as Larry describes: “We mostly just switched version numbers so the book could refer to 4.0” Wednesday, December 21, 2011

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PERL HISTORY Oct 18, 1994. Perl 5.0 Everything Else Wednesday, December 21, 2011

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MODERN PERL Clean Readable Object Oriented Uses CPAN Wednesday, December 21, 2011

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PERL FUTURE Perl 6, After christmas. Type System Formal Subroutine Parameters Moose-like OO Wednesday, December 21, 2011

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PERL CULTURE - HAIKU no less can I say; require strict, close attention while you ... write haiku Wednesday, December 21, 2011

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PERL CULTURE - HAIKU ugliness that grows into beauty inside of your favorite shell Wednesday, December 21, 2011

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PERL CULTURE - HAIKU I often think of Perl programs as the haiku of the software world. Both are compact, dense, powerful, and frequently a little obscure Wednesday, December 21, 2011

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PERL CULTURE - JAPH print “just another perl hacker”; Wednesday, December 21, 2011

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PERL CULTURE - JAPH $_=‘987;s/^(\d+)/$1-1/e;$1?eval:print”Just Another Perl Hacker”; eval; Wednesday, December 21, 2011

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PERL CULTURE - JAPH $_="krJhruaesrltre c a cnP,ohet"; $_.=$1,print$2while s/(..)(.)//; Wednesday, December 21, 2011

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PERL ONLINE RESOURCES Modern Perl Book http://www.onyxneon.com/books/modern_perl/ index.html Israel Perl Mongers http://perl.org.il/ Wednesday, December 21, 2011

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THANK YOU Ynon Perek ynonperek@yahoo.com https://github.com/ynonp/ Adv-Perl-Examples ynonperek.com Wednesday, December 21, 2011