This is the Moose talk I gave at YAPC::NA 2012.
It included a practical example of a Moose objects code, a simple app called Comican. The code is not available online. If you want it, just email me (sawyer ATT cpan DOTT org).
This describes a Functional Programming approach to computing AWS Glacier "tree hash" values, hiding the tail-call elimination in Perl5 with a keyword and also shows how to accomplish the same result in Perl6.
This was the talk actually given at YAPC::NA 2016 by Dr. Conway and myself.
Perl6 regular expression ("regex") syntax has a number of improvements over the Perl5 syntax. The inclusion of grammars as first-class entities in the language makes many uses of regexes clearer, simpler, and more maintainable. This talk looks at a few improvements in the regex syntax and also at how grammars can help make regex use cleaner and simpler.
This is the Moose talk I gave at YAPC::NA 2012.
It included a practical example of a Moose objects code, a simple app called Comican. The code is not available online. If you want it, just email me (sawyer ATT cpan DOTT org).
This describes a Functional Programming approach to computing AWS Glacier "tree hash" values, hiding the tail-call elimination in Perl5 with a keyword and also shows how to accomplish the same result in Perl6.
This was the talk actually given at YAPC::NA 2016 by Dr. Conway and myself.
Perl6 regular expression ("regex") syntax has a number of improvements over the Perl5 syntax. The inclusion of grammars as first-class entities in the language makes many uses of regexes clearer, simpler, and more maintainable. This talk looks at a few improvements in the regex syntax and also at how grammars can help make regex use cleaner and simpler.
If your not using an ORM (object relational mapper) and are still writing SQL by hand, here's what you need to know.
An introduction into DBIx::Class and some of the concepts and goodies you should be aware off.
Perl6 introduces a variety of tools for functional programming and writing readable code. Among them parameter declarations and lazy lists. This talk looks at how to get Perl6, where to find examples on RakudoCode, and how to use Perl6 functional tools for converting an algorithm from imperative to functional code, including parallel dispatch with the ">>" operator.
Perl, a cross-platform, open-source computer programming language used widely in the commercial and private computing sectors. Perl is a favourite among Web developers for its flexible, continually evolving text-processing and problem-solving capabilities.
This presentation covers some of the health applications for Ushahidi. This was first presented at the Voice of America Workshop on Disaster Preparedness and Influenza in 2011.
If your not using an ORM (object relational mapper) and are still writing SQL by hand, here's what you need to know.
An introduction into DBIx::Class and some of the concepts and goodies you should be aware off.
Perl6 introduces a variety of tools for functional programming and writing readable code. Among them parameter declarations and lazy lists. This talk looks at how to get Perl6, where to find examples on RakudoCode, and how to use Perl6 functional tools for converting an algorithm from imperative to functional code, including parallel dispatch with the ">>" operator.
Perl, a cross-platform, open-source computer programming language used widely in the commercial and private computing sectors. Perl is a favourite among Web developers for its flexible, continually evolving text-processing and problem-solving capabilities.
This presentation covers some of the health applications for Ushahidi. This was first presented at the Voice of America Workshop on Disaster Preparedness and Influenza in 2011.
32 Ways a Digital Marketing Consultant Can Help Grow Your BusinessBarry Feldman
How can a digital marketing consultant help your business? In this resource we'll count the ways. 24 additional marketing resources are bundled for free.
Arpad Ray's PHPNW08 slides:
Looking at websites from the perspective of potential attackers is a useful technique not only for security professionals.
This talk demonstrates how to use simple PHP scripts to exploit many common security holes in PHP applications, hopefully giving developers a deeper understanding of what it is they are protecting against.
* Getting around common precautions against SQL injection
* Free spam with SMTP injection
* Making a malicious website to exploit PHP sessions
* The holes every attacker hopes for
* Making use of a newly exploited website
Simple Ways To Be A Better Programmer (OSCON 2007)Michael Schwern
"Simple Ways To Be A Better Programmer' as presented at OSCON 2007 by Michael G Schwern.
The audio is still out of sync, working on it. Downloading will be available once the sync is done.
Dealing with Legacy Perl Code - Peter ScottO'Reilly Media
Peter Scott, author of the O'Reilly School of Technology's Perl Programming Certificate series, talks about how to deal with "legacy" Perl code - written by someone else, or maybe even yourself when you were younger and less wise.
PHP has its own treasure chest of classic mistakes that surprises even the most seasoned expert: code that dies just by changing its namespace, strpos() that fails to find strings or arrays that changes without touching them. Do that get on your nerves too? Let's make a list of them, so we can always teach them to the new guys, spot them during code reviews and kick them out of our code once and for all. Come on, you're not frightening us!
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Why You Should Replace Windows 11 with Nitrux Linux 3.5.0 for enhanced perfor...SOFTTECHHUB
The choice of an operating system plays a pivotal role in shaping our computing experience. For decades, Microsoft's Windows has dominated the market, offering a familiar and widely adopted platform for personal and professional use. However, as technological advancements continue to push the boundaries of innovation, alternative operating systems have emerged, challenging the status quo and offering users a fresh perspective on computing.
One such alternative that has garnered significant attention and acclaim is Nitrux Linux 3.5.0, a sleek, powerful, and user-friendly Linux distribution that promises to redefine the way we interact with our devices. With its focus on performance, security, and customization, Nitrux Linux presents a compelling case for those seeking to break free from the constraints of proprietary software and embrace the freedom and flexibility of open-source computing.
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
Essentials of Automations: The Art of Triggers and Actions in FMESafe Software
In this second installment of our Essentials of Automations webinar series, we’ll explore the landscape of triggers and actions, guiding you through the nuances of authoring and adapting workspaces for seamless automations. Gain an understanding of the full spectrum of triggers and actions available in FME, empowering you to enhance your workspaces for efficient automation.
We’ll kick things off by showcasing the most commonly used event-based triggers, introducing you to various automation workflows like manual triggers, schedules, directory watchers, and more. Plus, see how these elements play out in real scenarios.
Whether you’re tweaking your current setup or building from the ground up, this session will arm you with the tools and insights needed to transform your FME usage into a powerhouse of productivity. Join us to discover effective strategies that simplify complex processes, enhancing your productivity and transforming your data management practices with FME. Let’s turn complexity into clarity and make your workspaces work wonders!
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
2. Vanilla Perl OO Destructors a class with destructor package X; use strict; use warnings; sub new { bless {}, __PACKAGE__; } sub DESTROY { my($self)=@_; print "$self is dead"; } program and output print "before birth"; { my $x = X->new; } print "post-mortem"; before birth X=HASH(0x10023ce8) is dead post-mortem
3. Moose Destructors program and output before birth X=HASH(0x10654b68) is dead post-mortem print "before birth"; { my $x = X->new; } print "post-mortem"; package X; use Moose; sub DEMOLISH { my($self)=@_; print "$self is dead"; }
4. So Far.. So what?! Just a bit more background...
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6. XML::Writer has no API support for element nesting <level1> 45 </level1> use XML::Writer; my $writer = XML::Writer->new; $writer->dataElement("level1", 45);
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10. more stack, less vars use XML::Writer::Nest; my $writer = new XML::Writer; { local $xml = XML::Writer::Nest->new(tag => 'level1', writer => $writer ); { local $xml = $xml-> nest ('level2'); { local $xml = $xml->nest('level3'); } } }
11. Implementation of XML::Writer::Nest package XML::Writer::Nest; use Moose; has 'tag' => (isa => 'Str', is => 'ro', required => 1); has 'attr' => ( isa => 'ArrayRef[Maybe[Str]]', is => 'ro', default => sub { [] } ); has 'writer' => (isa => 'XML::Writer', is => 'ro', required => 1);
12. Implementation of XML::Writer::Nest sub BUILD { my($self)=@_; my @attr = defined($self->attr) ? @{$self->attr} : () ; $self->writer->startTag($self->tag, @attr); } sub DEMOLISH { my($self)=@_; $self->writer->endTag(); }
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14. For more complex examples... HTML::Element::Replacer is a more complex example of "constructive destruction" used to simplify use of HTML::TreeBuilder <http://search.cpan.org/dist/HTML-Element-Replacer/>