Perl Introduction

Welcome To Perl

Transcript

1. PERL Keeping Developers Happy Since 1987 Wednesday, December 21, 2011
2. AGENDA Perl’s 7 Wonders The Perl Story Online Resources Wednesday, December 21, 2011
3. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
4. SIMPLE print “Hello World” Wednesday, December 21, 2011
5. 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
6. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
7. OO PERL use MooseX::Declare; class Person { has ‘name’, isa => ‘String’, is => ‘ro’; has ‘age’, isa => ‘Num’, is => ‘rw’; } Wednesday, December 21, 2011
8. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
9. TDD PERL Perl is very TDD friendly Writing a test case is a breeze Results in clean code Wednesday, December 21, 2011
10. TDD PERL A Unit Test In Perl use Test::More; is( power(2, 3), 8 ); done_testing; Wednesday, December 21, 2011
11. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
12. 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
13. 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
14. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
15. PERL IS WEIRD The Spaceship Operator <=> Wednesday, December 21, 2011
16. PERL IS WEIRD The inchworm Operator ~~ Wednesday, December 21, 2011
17. 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
18. PERL IS WEIRD Valid Perl Wednesday, December 21, 2011
19. 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
20. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
21. PERL IS EVERYWHERE Wednesday, December 21, 2011
22. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
23. PERL MONGERS AROUND THE WORLD Wednesday, December 21, 2011
24. CHOOSE PERL Simplicity Object Oriented Test Driven CPAN Weird Perl is Everywhere The Perl Community Wednesday, December 21, 2011
25. THE PERL STORY Wednesday, December 21, 2011
26. PERL HISTORY Dec. 18, 1987. Perl 1.0 Wednesday, December 21, 2011
27. PERL HISTORY June 5, 1988. Perl 2.0 Add Henry Spencer’s Regexp Library Wednesday, December 21, 2011
28. PERL HISTORY Oct 18, 1989. Perl 3.0. Add Support for Binary Data Wednesday, December 21, 2011
29. 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
30. PERL HISTORY Oct 18, 1994. Perl 5.0 Everything Else Wednesday, December 21, 2011
31. MODERN PERL Clean Readable Object Oriented Uses CPAN Wednesday, December 21, 2011
32. PERL FUTURE Perl 6, After christmas. Type System Formal Subroutine Parameters Moose-like OO Wednesday, December 21, 2011
33. PERL CULTURE - HAIKU no less can I say; require strict, close attention while you ... write haiku Wednesday, December 21, 2011
34. PERL CULTURE - HAIKU ugliness that grows into beauty inside of your favorite shell Wednesday, December 21, 2011
35. 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
36. PERL CULTURE - JAPH print “just another perl hacker”; Wednesday, December 21, 2011
37. PERL CULTURE - JAPH $_=‘987;s/^(\d+)/$1-1/e;$1?eval:print”Just Another Perl Hacker”; eval; Wednesday, December 21, 2011
38. PERL CULTURE - JAPH $_="krJhruaesrltre c a cnP,ohet"; $_.=$1,print$2while s/(..)(.)//; Wednesday, December 21, 2011
39. 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
40. THANK YOU Ynon Perek ynonperek@yahoo.com https://github.com/ynonp/ Adv-Perl-Examples ynonperek.com Wednesday, December 21, 2011