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Perl Baseless Myths & Startling Realities
http://xkcd.com/224/ 1 Perl Baseless Myths & Startling Realities by Tim Bunce, February 2008 2 Parrot and Perl 6 portion incomplete due to lack of time (not lack of myths!) Realities - I'm positive about Perl Not negative about other languages - Pick any language well suited to the task - Good developers are always most important, whatever language is used 3 DISPEL myths UPDATE about perl Who am I? - Tim Bunce - Author of the Perl DBI module - Using Perl since 1991 - Involved in the development of Perl 5 - “Pumpkin” for 5.4.x maintenance releases - http://blog.timbunce.org 4 Perl 5.4.x 1997-1998 Living on the west coast of Ireland ~ Myths ~ 5 http://www.bleaklow.com/blog/2003/08/new_perl_6_book_announced.html ~ Myths ~ - Perl is dead - Perl is hard to read / test / maintain - Perl 6 is killing Perl 5 6 Another myth: Perl is slow: http://www.tbray.org/ongoing/When/200x/2007/10/30/WF-Results ~ Myths ~ - Perl is dead - Perl is hard to read / test / maintain - Perl 6 is killing Perl 5 7 Perl 5 - Perl 5 isn’t the new kid on the block - Perl is 21 years old - Perl 5 is 14 years old - A mature language with a mature culture 8 How many times Microsoft has changed developer technologies in the last 14 years... 9 10 You can guess where thatʼs leading... From “The State of the Onion 10” by Larry Wall, 2006 http://www.perl.com/pub/a/2006/09/21/onion.html?page=3 Buzz != Jobs - Perl5 hasn’t been generating buzz recently - It’s just getting on with the job - Lots of jobs - just not all in web development 11 Web developers tend to have a narrow focus. -
(12) Patent Application Publication (10) Pub. No.: US 2014/0019847 A1 Osmak (43) Pub
US 20140019847A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2014/0019847 A1 OSmak (43) Pub. Date: Jan. 16, 2014 (54) CONTENT MANAGEMENT SYSTEM (52) U.S. Cl. EMPLOYINGA HYBRD WEB APPLICATION CPC .................................. G06F 17/2247 (2013.01) FRAMEWORK USPC .......................................................... 71.5/234 (71) Applicant: Telerik, AD, Sofia (BG) (57) ABSTRACT A method may include receiving, via a network, a request for (72) Inventor: Ivan Osmak, Sofia (BG) browser-renderable content, and determining, by a processor of a computing device, a web framework, where the web (21) Appl. No.: 13/799,431 framework includes at least one ASP.NETTM control and at least one ASP.NETTM MVC controller. The method may (22) Filed: Mar 13, 2013 include determining, by the processor, first instructions, where the first instructions correspond to the at least one Related U.S. Application Data ASP.NETTM control, and the first instructions include a browser-renderable language. The method may include deter (60) Provisional application No. 61/669,930, filed on Jul. mining, by the processor, second instructions, where the sec 10, 2012. ond instructions correspond to the at least one ASP.NETTM MVC controller, and the second instructions include the Publication Classification browser-renderable language The method may include com bining, by the processor, the first instructions and the second (51) Int. Cl. instructions to determine the browser-renderable content, and G06F 7/22 (2006.01) providing, via the network, the browser-renderable content. Routing Engine Ric Presentation Media Fies : Fies 22 Applications 28 Patent Application Publication Jan. 16, 2014 Sheet 1 of 8 US 2014/001.9847 A1 Patent Application Publication Jan. -
Current Issues in Perl Programming Overview
Current Issues In Perl Programming Lukas Thiemeier Current Issues In Perl Programming DESY, Zeuthen, 2011-04-26 Overview > Introduction > Moose – modern object-orientation in Perl > DBIx::Class – comfortable an flexible database access > Catalyst – a MVC web application framework Lukas Thiemeier | Current issues in Perl programming | 2011-04-26 | Page 2 Introduction > What is this talk about? . Modern Perl can do more than most people know . A quick overview about some modern features . Illustrated with some short examples > What is this talk not about? . Not an introduction to the Perl programming language . Not a Perl tutorial . Not a complete list of all current issues in Perl 5 . Not a complete HowTo for the covered topics Lukas Thiemeier | Current issues in Perl programming | 2011-04-26 | Page 3 Overview > Introduction > Moose – modern object-orientation in Perl . About Moose . Creating and extending classes . Some advanced features > DBIx::Class – comfortable an flexible database access > Catalyst – a MVC web application framework Lukas Thiemeier | Current issues in Perl programming | 2011-04-26 | Page 4 About Moose > “A postmodern object system for Perl 5” > Based on Class::MOP, a metaclass system for Perl 5 > Look and feel similar to the Perl 6 object syntax “The main goal of Moose is to make Perl 5 Object Oriented programming easier, more consistent and less tedious. With Moose you can to think more about what you want to do and less about the mechanics of OOP.” Lukas Thiemeier | Current issues in Perl programming | 2011-04-26 | Page 5 Creating Classes > A very simple Moose-Class: . Create a file called “MyAnimalClass.pm” with the following content: package MyAnimalClass; use Moose; no Moose; 1; Lukas Thiemeier | Current issues in Perl programming | 2011-04-26 | Page 6 Creating Classes > A very simple Moose-Class: The package name is used as class name. -
Bachelorarbeit
BACHELORARBEIT Realisierung von verzögerungsfreien Mehrbenutzer Webapplikationen auf Basis von HTML5 WebSockets Hochschule Harz University of Applied Sciences Wernigerode Fachbereich Automatisierung und Informatik im Fach Medieninformatik Erstprüfer: Prof. Jürgen K. Singer, Ph.D. Zweitprüfer: Prof. Dr. Olaf Drögehorn Erstellt von: Lars Häuser Datum: 16.06.2011 Einleitung Inhaltsverzeichnis 1 Einleitung ................................................................................................................. 5 1.1 Zielsetzung ..................................................................................................... 5 1.2 Aufbau der Arbeit ........................................................................................... 6 2 Grundlagen .............................................................................................................. 8 2.1 TCP/IP ............................................................................................................ 8 2.2 HTTP .............................................................................................................. 9 2.3 Request-Response-Paradigma (HTTP-Request-Cycle) .............................. 10 2.4 Klassische Webanwendung: Synchrone Datenübertragung ....................... 11 2.5 Asynchrone Webapplikationen .................................................................... 11 2.6 HTML5 ......................................................................................................... 12 3 HTML5 WebSockets ............................................................................................. -
Revealing Injection Vulnerabilities by Leveraging Existing Tests
Revealing Injection Vulnerabilities by Leveraging Existing Tests Katherine Hough1, Gebrehiwet Welearegai2, Christian Hammer2 and Jonathan Bell1 1George Mason University, Fairfax, VA, USA 2University of Potsdam, Potsdam, Germany [email protected],[email protected],[email protected],[email protected] Abstract just one of over 8,200 similar code injection exploits discovered in Code injection attacks, like the one used in the high-prole 2017 recent years in popular software [44]. Code injection vulnerabilities Equifax breach, have become increasingly common, now ranking have been exploited in repeated attacks on US election systems [10, #1 on OWASP’s list of critical web application vulnerabilities. Static 18, 39, 61], in the theft of sensitive nancial data [56], and in the analyses for detecting these vulnerabilities can overwhelm develop- theft of millions of credit card numbers [33]. In the past several ers with false positive reports. Meanwhile, most dynamic analyses years, code injection attacks have persistently ranked at the top rely on detecting vulnerabilities as they occur in the eld, which of the Open Web Application Security Project (OWASP) top ten can introduce a high performance overhead in production code. most dangerous web aws [46]. Injection attacks can be damaging This paper describes a new approach for detecting injection vul- even for applications that are not traditionally considered critical nerabilities in applications by harnessing the combined power of targets, such as personal websites, because attackers can use them human developers’ test suites and automated dynamic analysis. as footholds to launch more complicated attacks. Our new approach, Rivulet, monitors the execution of developer- In a code injection attack, an adversary crafts a malicious in- written functional tests in order to detect information ows that put that gets interpreted by the application as code rather than may be vulnerable to attack. -
Lifting Moose.Key
Lifting Moose Shawn M Moore @sartak Behavior State Identity Object-oriented programming is about behavior, state, and identity. Behavior as in message passing, method calls. State as in attributes, properties. Identity as in two objects with the same values for their properties are distinct. Every object-oriented programming language provides these core principles. But then there’s the details. Ohh the details. Class vs prototype “final” or open Behavior Dynamic or static State Generic methods Identity Traits / Roles Operator overload Rebless Every programming language provides a unique take on object-oriented programming. For example, some languages provide inheritance via classes, others via prototype. Some have “final” declarations, some have dynamic dispatch, some generic methods, etc. etc. It’s almost like you could pick any mix of features that make sense together and there’d be a language there. Some exist even where their list of features don’t really make sense together. Object-oriented Programming C# Java CLOS C++ PHP Lua Elk JS Perl Py Ruby Smalltalk We could even treat languages as points on a plane, where position is determined by the set of OOP tradeoffs that language has made. Perl is here. Obviously. And then there’s a bunch of other languages that are more or less different from other languages. By the way, don’t take this chart too literally; it’s merely demonstrative. PHP Lua Perl Python Ruby Smalltalk Let’s zoom in around Perl. All the usual suspects are here. None of these languages provide exactly the same OOP. For example Ruby lets you subclass builtin types like string and array. -
A Retrospective on Pugs ☺
☺ A retrospective on Pugs ☺ Ingo Blechschmidt <[email protected]> Augsburg.pm (April 13th, 2015) Pugs, an experimental Perl 6 platform: a retrospective 1 / 37 April 13th, 2015 Abstract. “Hi. Today I have started working on specifying and implementing Feath- erweight Perl 6 (FP6), a side-effect-free subset of Perl 6.” Audrey Tang used these words to unveil the Pugs project in February of 2005. Initially conceived as an imple- mentation of a small subset of Perl 6 in Haskell, the project quickly grew to contain a full-fledged compiler and interpreter for Perl 6 and aracted a large and diverse community. e talk will give a subjective survey of the history of Pugs. We will pay particular aention to the special manner with which Audrey led the project and what the phi- losophy “-Ofun” meant to the developers. We’ll also discuss which parts of Pugs were absorbed into other implementations of Perl 6 and which influence Pugs had on the Perl and Haskell communities. About me. I contributed to Pugs as a school student in 2005, at first by porting modules and writing tests, then gradually also by writing Haskell code and later by implement- ing a JavaScript backend. Audrey and the unique spirit in the Pugs community had a strong and lasting influence on me (exposing me to Haskell, category theory, and a beautiful way of tending communities); I look back on very exciting and fun days. Warning. e account is mostly from memory and not properly researched. Try not to trust it! Also note that the timeline covers only the year 2005 and that the code excerpts are edited for legibility, i. -
Perl 6 Audrey Tang
Deploying Perl 6 Audrey Tang 1 Perl 6 is here Today! 2 Perl 6 is here Today! (YAPC::NA 2005) 3 Pugs 6.2.12 •Released on June 26th •3x faster build time •10x faster compilation •2x faster runtime •2000+ commits since 6.2.11 4 Parrot 0.4.5 •Released last June 19th •Unicode identifiers •Hierarchical namespace •New .NET CLR translator •Much faster compiler tools 5 Great for experimenting 6 But not for production 7 ...not this Christmas 8 9 CPAN is the language 10 Perl is just its syntax 11 Perl 5.000b3h (October 1994) 12 • use 5.000; • use strict; • require 'fastcwd.pl'; • require 'newgetopt.pl'; • require 'exceptions.pl'; • # ... • 13 Continuity++ 14 Pugs 6.2.2 (June 2005) 15 • use v6-pugs; • use perl5:DBI; • use perl5:Encode; • use perl5:Template; • # ... • 16 Still need to install Pugs 17 Perl 5.9.3 (Jan 2006) 18 • use v5.9.3; • use feature qw(switch say err ~~); • given (shift()) { • when ['‐h', '‐‐help'] { • say "Usage: $0"; • } • default { • $0 ~~ 'moose.exe' err die "Not Moose"; • } • } • 19 How to get Perl 6 into Production? 20 Production • Work with existing code • Must support Perl 5 and XS • No from‐scratch rewrites 21 Frontends? Tcl Python Scheme Parrot 22 Frontends? Tcl Python Scheme Perl 5 (Ponie) Parrot Perl 6 23 Backends! Pugs Java Haskell Perl 5 Script 24 Backends! JVM? YARV? Pugs CLR? PyPy? Java Haskell Perl 5 Script 25 Pugs on Perl 5 26 Perl 6 Runtime Implemented as Perl 5 Modules 27 Sane Perl 5 (not source filters) 28 Available On CPAN Today 29 Moose.pm ☯ 30 What is Moose? • Complete object model for Perl 5 • Based on the -
SWE 642 Software Engineering for the World Wide Web
SWE 642 Software Engineering for the World Wide Web Fall Semester, 2017 Location: AB L008 Time: Tuesday 7:20-10:00pm Instructor Overview Textbook and Readings Grading Schedule Academic Integrity Professor: Dr. Vinod Dubey Email: [email protected] Class Hours: Tuesday 7:20-10:00, AB L008 Prerequisite: SWE 619 and SWE Foundation material or (CS 540 and 571) Office Hours: Anytime electronically, or by an appointment Teaching Assistant: Mr. Shravan Hyderabad, [email protected] Overview OBJECTIVE: After completing the course, students will understand the concepts and have the knowledge of how web applications are designed and constructed. Students will be able to engineer high quality building blocks for Web applications. CONTENT: Detailed study of the engineering methods and technologies for building highly interactive web sites for e-commerce and other web-based applications. Engineering principles for building web sites that exhibit high reliability, usability, security, availability, scalability and maintainability are presented. Methods such as client-server programming, component-based software development, middleware, and reusable components are covered. After the course, students should be prepared to create software for large-scale web sites. SWE 642 teaches some of the topics related to the exciting software development models that are used to support web and e-commerce applications. We will be studying the software design and development side of web applications, rather than the policy, business, or networking sides. An introductory level knowledge of HTML and Java is required. SWE 619 is a required prerequisite and SWE 632 is a good background course. The class will be very practical (how to build things) and require several programming assignments. -
Strange History
A STRANGE HISTORY. A DRAMATIC TALE, IN EIGHT CHAPTERS. BY MESSRS. SLINGSBY LAWRENCE AND CHARLES MATHEWS, Authors of " A Chain of Events," &c. &c. THOMAS HAILES LACY, WELLINGTON STREET, STRAND, LONDON. First Performed at the Royal Lyceum Theatre, on Easter Monday, March 29th, 1853. CHARACTERS. JEROME LEVERD ..................................... Mr. CHARLES MATHEWS. LEGROS Mr. FRANK MATTHEWS. NICOLAS Mr. ROBERT ROXBY. MAURICE BELLISLE ................................ Mr. COOPER. DOMINIQUE Mr. JAMES BLAND. ALFRED DE MIRECOUR ..................... Mr. BELTON. JEAN BRIGARD ............................. Mr. BASIL BAKER. AMEDEE Mr. ROSIERE. HECTOR DE BEAUSIRE ...................... Mr. H. BUTLER. CAPTAIN OF GENDARMES ................. Mr. ABBOTT. PIERRE Mr. HENRY. CHRISTINE Madame VESTRIS. MADAME LEGROS .......................................... Mrs. FRANK MATTHEWS. NICOTTE Miss JULIA ST. GEORGE. ESTELLE Miss M. OLIVER. COUNTESS DE MIRECOUR ................... Mrs. HORN. MANETTE Miss MASON. MARGUERITE Miss WADHAM. Time in Representation, Three Hours. If performed in Five Acts, Two Hours and Twenty Minutes. COSTUMES. In the first three chapters Tyrolean ; and French soldiers. In the rest, Breton peasants and French gentlemen of 1810-15. JEROME.—1st Dress—Peasant's brown jacket, black sleeves, red vest; full brown trunks i grey leggings ; shoes ; felt Swiss hat and feather ; over-coat for the mountains, brown camels hair, trimmed with fur. 2nd Dress—Brown open jacket, without sleeves ; holland shirt. 3rd Dress—Light blue open jacket, slashed sleeves of brown ; red em- broidered vest; light drab full trunks, all trimmed with white and coloured gimp ; white buttons ; striped silk sash. 4th Dress—Long blue dress coat (Paris cut), gilt buttons; white vest, trimmed with white fringe; white silk stockings ; short blue breeches ; Hessian boots, &c.; sugar-loaf hat; long hair. -
Perl Baseless Myths & Startling Realities
http://xkcd.com/224/ Perl Baseless Myths & Startling Realities by Tim Bunce, July 2008 Prefer ‘Good Developers’ over ‘Good Languages’ “For all program aspects investigated, the performance variability that derives from differences among programmers of the same language—as described by the bad-to-good ratios—is on average as large or larger than the variability found among the different languages.” — An empirical comparison of C, C++, Java, Perl, Python, Rexx, and Tcl. IEEE Computer Journal October 2000 Who am I? - Tim Bunce - Author of the Perl DBI module - Using Perl since 1991 - Involved in the development of Perl 5 - “Pumpkin” for 5.4.x maintenance releases - http://blog.timbunce.org ~ Myths ~ ~ Myths ~ - Perl is dead - Perl is hard to read / test / maintain - Perl 6 is killing Perl 5 ~ Myths ~ - Perl is dead - Perl is hard to read / test / maintain - Perl 6 is killing Perl 5 Perl 5 - Perl 5 isn’t the new kid on the block - Perl is 21 years old - Perl 5 is 14 years old - A mature language with a mature culture Buzz != Jobs - Perl5 hasn’t been generating buzz recently - It’s just getting on with the job - Lots of jobs - - just not all in web development Guess the Languages “web developer” Yes, Perl is growing more slowly than others but these are just “web developer” jobs “software engineer” Perl is mentioned in many more software engineer/developer jobs. “foo developer” Perl is the primary focus of more developer jobs. Want a fun new job? Become a Perl developer! Massive Module Market - Large and vibrant developer community - Over 15,000 distributions (58,000 modules) - Over 6,700 ‘authors’ (who make releases) - One quarter of all CPAN distributions have been updated in the last 4 months! - Half of all updated in the last 17 months! Top Modules -Many gems, including.. -
Pragmaticperl-Interviews-A4.Pdf
Pragmatic Perl Interviews pragmaticperl.com 2013—2015 Editor and interviewer: Viacheslav Tykhanovskyi Covers: Marko Ivanyk Revision: 2018-03-02 11:22 © Pragmatic Perl Contents 1 Preface .......................................... 1 2 Alexis Sukrieh (April 2013) ............................... 2 3 Sawyer X (May 2013) .................................. 10 4 Stevan Little (September 2013) ............................. 17 5 chromatic (October 2013) ................................ 22 6 Marc Lehmann (November 2013) ............................ 29 7 Tokuhiro Matsuno (January 2014) ........................... 46 8 Randal Schwartz (February 2014) ........................... 53 9 Christian Walde (May 2014) .............................. 56 10 Florian Ragwitz (rafl) (June 2014) ........................... 62 11 Curtis “Ovid” Poe (September 2014) .......................... 70 12 Leon Timmermans (October 2014) ........................... 77 13 Olaf Alders (December 2014) .............................. 81 14 Ricardo Signes (January 2015) ............................. 87 15 Neil Bowers (February 2015) .............................. 94 16 Renée Bäcker (June 2015) ................................ 102 17 David Golden (July 2015) ................................ 109 18 Philippe Bruhat (Book) (August 2015) . 115 19 Author .......................................... 123 i Preface 1 Preface Hello there! You have downloaded a compilation of interviews done with Perl pro- grammers in Pragmatic Perl journal from 2013 to 2015. Since the journal itself is in Russian