User since: Jun 23, 2002 at 06:02 UTC (20 years ago) Last here: Jul 01, 2022 at 14:00 UTC (10 hours ago) Experience: 46282 Level: Bishop (22) Writeups: 1976 Location: Australia User's localtime: Jul 01, 2022 at 23:59 UTC Scratchpad: View Member of: SiteDocClan For this user: Search nodes

My best node: Saturn (shaped like image above)

I like programming in Perl. Though I don't get to use it as much as I'd like. My two main hobbies nowadays are space stuff and Perl.

Coding Standards and Style

• On Interfaces and APIs
• On Coding Standards and Code Reviews
• Why Create Coding Standards and Perform Code Reviews?
• Writing Solid CPAN Modules
• The Boy Scout Rule
• Re: Some Help for a Report About Perl (Readability vs Maintainability) (compares and contrasts "readability" vs "maintainability")
• Two Different Languages: Two Similar Books (PBP and CCS) (Perl and C++ programming standards, compares PBP and CCS books)

• Re-runnably editing a file in place
• Perl Best Practices book: is this one a best practice or a dodgy practice?
• Re: Sane deprecation policy for a CPAN module? (Software Versioning) (general software versioning links and CPAN versioning links)

• Re: Strategies for maintenance of horrible code? (on Legacy Code) (long list of references on dealing with legacy code)
• Re: I need perl coding standards (Coding Standards Links) (long list of references on coding standards)

• Re: Newline's creep in, while using Tie::File (use strict and warnings References)

• Data-driven Programming: fun with Perl, JSON, YAML, XML...
• Modern Perl: The Book: The Draft
• Re: Meaning of "Clean" Perl code
• Re: What is modern Perl?
• Re^4: What's it with Perl Syntax ?!
• Re: Where Do I Go Next?
• Re: eval question
• perl certification (re Certifications, see also Re^2: s‎crip‎ting a perl install on *nix, including making the workstation usable)
• Code style advice: where to put "use" statements?
• Perl Elitist Code vs Functional Code
• Practical example of "Is Perl code maintainable"
• How should I do (and document) effective semi-formal code review?
• Searching for duplication in legacy code

• Re: looking for feedback on my first s‎crip‎t (2021)
• Re: [RFC] Review of module code and POD (Doco) (2021)
• Re^3: [RFC] Review of module code and POD (TDD) (2021)

• Re: New Discovery!!! (sub call without parentheses) - Coding Style (Perl coding style advice: always use parens (and no leading &) when calling user-defined subroutines/methods; don’t use unnecessary parens for built-ins)

• Re: perl one liner for csv file one field (Useless use of cat award (e.g. cat with just one argument), plus other dodgy unix shell hacks)

• Re^2: Mapping list to hash is dropping list items (trim whitespace)

Quotes

• on Data Structures vs Code
• on Code Optimization
• on Debuggers (older version with less detail: on Debuggers)

Exceptions

• Re: eval to replace die? (Exceptions References)

Logging

• Re: perl compiler optimizer curiosity (Logging References)

Security

• Re: Security techniques every programmer should know (Security References) (contains a long list of Security references)

Sorting

• Re^5: Create sort function from a text file (contains references on sorting with Schwartzian Transform and GRT)

Typeglobs

• Re: Is typeglob feature really useful? (typeglob references) (contains list of references on typeglobs)

Memory Leaks and Garbage Collection

• Re: Perl Memory problem ... (Memory Tools) (contains a list of nodes)
• Memory is not released back to operating system
• Re: Not able to release memory
• Re^3: How to return unused memory to OS?

• Is $^M a leftover April Fool? by BrowserUk (2003)
• How use $^M? by xiaoyafeng (2021)

Threads, Forks, Execs, Signals, Pipes, IPC, ...

• Timing and timing out Unix commands
• Timing Windows commands (uses Win32::Process)
• Re: Timing Windows commands (uses Win32::Job)

• Calling External Commands More Safely by haukex (2017)
• Re^2: Having to manually escape quote character in args to "system"? by salva (2017)
• The problem of "the" default shell by afoken (2017)

• Detect whether a writeable filehandle has closed? by jdporter (2021)
• Signals vs. Windows by DanEllison (2012)
• trying to get timeout to work by Skeeve (2012)
• Windows run an exe print its output and cut it off after a time by anshumangoyal (2012)
• Backticks and SIGALRM by nemo (2007)
• Check for another program availability by hrcerq (2021)

• Re: Threads or no Threads (Threading and Concurrency Links) (contains a list of nodes)

File Locking

• Will these functions for use with Storable properly lock my file? (2021)
• File lock demo by LanX (2021)
• Re: Preventing multiple instances (2020)
• Ensuring only one copy of a perl s‎crip‎t is running at a time
• Re: Lock File

QA and Testing and DevOps

• Effective Automated Testing
• Perl CPAN test metadata
• Re: Winning people over to better development practises (TDD)
• PM discussion of Dependency Injection in Perl and C++
• What is the best way to add tests to existing code?
• Organising Large Test Suites
• Testing failures: How to override print to make it fail?
• Re: I need perl coding standards (Coding Standards Links)
• Quality, Developers and Testers: Organisational Issues
• Re: How can I use Perl knowledge in my Software Testing career
• Re: Philosophical question about testing
• Re: Test Case Generator
• why Test::More? (see especially response from Your Mother)
• A brief question about testing/best practices
• Re^3: How to test for empty hash?

• Re: How to write testable command line s‎crip‎t? (References on testing end-user s‎crip‎ts)

• Banal Configuration Languages by jdporter
• "Magic tools" that take the fun away
• Re: "Magic tools" that take the fun away (Build/DevOps/Rex References) (mentions Cons/SCons and other Build & DevOps tools, including Perl-based Rex tool)
• Re: Perl Contempt in My Workplace (Perl v Python v modern DevOps tools)

Process

• Five Whys
• Common Software Development Mistakes
• Working Solo and in a Team
• Conflict in Teams

• Nobody Expects the Agile Imposition (Part I): Meta Process
• Nobody Expects the Agile Imposition (Part II): The Office
• Nobody Expects the Agile Imposition (Part III): People
• Nobody Expects the Agile Imposition (Part IV): Teamwork
• Nobody Expects the Agile Imposition (Part V): Meetings
• Nobody Expects the Agile Imposition (Part VI): Architecture
• Nobody Expects the Agile Imposition (Part VII): Metrics
• Nobody Expects the Agile Imposition (Part VIII): Software Craftsmanship
• Nobody Expects the Agile Imposition (Part IX): Culture

• Organizational Culture (Part I): Introduction
• Organizational Culture (Part II): Meta Process
• Organizational Culture (Part III): Spaceflight and Aviation
• Organizational Culture (Part IV): Perl Culture
• Organizational Culture (Part V): Behavior
• Organizational Culture (Part VI): Sociology
• Organizational Culture (Part VII): Science

• Building the Right Thing (Part I): Pretotyping
• Building the Right Thing (Part II): Lean Startup
• Building the Right Thing (Part III): Customers

• On Interviewing and Interview Questions
• Interview method feedback?
• On Finding, Hiring, Inspiring and Keeping
• Do you prefer to work remotely?

• [OT] Reflecting on SQL. Meditating on Perl. Do languages meet requirements of Agile? by betmatt (2020: do Perl and SQL support agile programming?)

• Re: About 'Show me your Code'
• An interesting rebuttal of "agile"
• Re: Perlmonks SmartPhone App
• Swallowing an elephant in 10 easy steps
• Re: Overtime: the "Bad News" Warning Sign

Legacy Code

• Strategies for maintenance of horrible code? (my reply contains a long list of references)

• Nobody Expects the Agile Imposition (Part VI): Architecture
• The Boy Scout Rule
• What is the best way to add tests to existing code?

Comparing Programming Languages

• Re: Honest question about Perl, Python and Ruby (Links Comparing Programming Languages) (contains a list of nodes comparing programming languages)
• Re: Some Help for a Report About Perl (Readability vs Maintainability) (compares and contrasts "readability" vs "maintainability")
• Re: A short whishlist of Perl5 improvements leaping to Perl7 by Eily with responses from me, Eily and LanX (compares scoping in Perl with Python)
• Re^7: A short whishlist of Perl5 improvements leaping to Perl7 (Python TMTOWTDI)
• Unix shell versus Perl
• Two Different Languages: Two Similar Books (PBP and CCS) (Perl and C++ programming standards)
• Perl tutorial building on Python skills? by LanX

Rosetta Code (Many Different Languages)

• Tales from writing a RPN evaluator in Perl 5, Perl 6 and Haskell
• Five Ways to Reverse a String of Words (C#, Perl 5, Perl 6, Ruby, Haskell)
• Yet Another Rosetta Code Problem (Perl, Ruby, Python, Haskell, ...)
• Rosetta PGA-TRAM
• Rosetta code: Split an array into chunks
• Re^2: Perlplexation - foreach shoulda Known (Rosetta: Perl, Python, Ruby)
• Rosetta Dispatch Table (Interview Question)
• Re^2: What's Perl good at or better than Python (Perl vs C++ Performance) (summary of GOL benchmarks, same algorithm implemented in Perl and C++)

• Re: How to Split on specific occurrence of a comma (see Refs: List::MoreUtils, List::SomeUtils, List::AllUtils, Scalar-List-Utils, ...)

Scientific Computing and BioPerl

• Re^2: Organizational Culture (Part II): Meta Process (BioPerl/PDL and Data Science References) (contains a list of nodes)

Mathematical:

• Re: Primes software drag race (Prime Number References) (prime numbers, e.g. Sieve of Eratosthenes)

HPC (High Performance Computing) in Perl and C++

• The 10**21 Problem (Part I)
• The 10**21 Problem (Part 2)
• The 10**21 Problem (Part 3)
• The 10**21 Problem (Part 4)

• High Performance Game of Life
• More Betterer Game of Life
• Re^2: What's Perl good at or better than Python (Perl vs C++ Performance) (summary of GOL benchmarks, same algorithm implemented in Perl and C++)

Performance References:

• Re: declaring lexical variables in shortest scope: performance? (on Code Optimization and Performance References) (Performance quotes from Knuth, Pike, Alexandrescu et al - plus many Performance References)

Database References

• Best practices for closing database connections? (2022)

SysAdmin

• Re: Out-of-the box Perl version - lowest common denominator
• Re^3: Out-of-the box Perl version - lowest common denominator by Tux (CSV spreadsheet of list of Perl versions used on all Linux boxes)

Building Perl

• Re: Replicate Perl setup (Building Perl References)

Code Golf (Perl, Python, Ruby, PHP, C++)

• Re: reduce code (Golfing References) (contains many golfing links)

• The Lighter Side of Perl Culture (Part IV): Golf

• The golf course looks great, my swing feels good, I like my chances (Part I)
• The golf course looks great, my swing feels good, I like my chances (Part II)
• The golf course looks great, my swing feels good, I like my chances (Part III)
• The golf course looks great, my swing feels good, I like my chances (Part IV)
• The golf course looks great, my swing feels good, I like my chances (Part V)
• The golf course looks great, my swing feels good, I like my chances (Part VI)
• Spending Time on Saving Time [golf]
• Drunk on golf: 99 Bottles of Beer
• Compression in Golf: Part I
• Compression in Golf: Part II
• Compression in Golf: Part III
• The 10**21 Problem (Part I)
• The 10**21 Problem (Part 2)
• The 10**21 Problem (Part 3)
• The 10**21 Problem (Part 4)
• Dueling Flamingos: The Story of the Fonality Christmas Golf Challenge
• Golf: Magic Formula for Roman Numerals
• When One Golfer Speculates On What Another Is Doing...
• Necroposting Considered Beneficial

• Re^2: Golf: Length of longest line in a file
• Re^3: Counting positive numbers
• Re: pi and some continued fractions
• Re^2: Mini-Tutorial: Working with Odd/Even Elements
• Re: Golf: Sudoku solving
• Re^3: Perl Golf Ethics
• Re: Rot13 Challenge
• Re^3: Golf: Count unique words
• Golf: ROT-n
• Golf: Fix de facto HTML comments
• Competition fuels obsession over Perl
• Friday Golf: All 2-digit combinations
• Pascal-Sierpinski for golfers
• Diamonds for fun
• Golf for unique digits
• Homework Golf
• Using the olde times internet
• Golf Challenge: FizzBuzz
• Golf: Factorials
• Shorten this one-liner!
• 12 days of Perl?

The Lighter Side of Perl Culture

• Re: Some Help for a Report About Perl (Perl Culture and History References)

• The Lighter Side of Perl Culture (Part I): Introduction
• The Lighter Side of Perl Culture (Part II): JAPH
• The Lighter Side of Perl Culture (Part III): Obfu
• The Lighter Side of Perl Culture (Part IV): Golf
• The Lighter Side of Perl Culture (Part V): Poetry
• The Lighter Side of Perl Culture (Part VI): April Fools

Fun

• Saturn
• Spinning World
• Larry Witticisms from perl Errors
• Snow flake
• Perl Monopoly Board
• Running a Perl Quiz Night
• Somersaulting camel
• Bitrotten obfuscations
• Add "Image Miniatures" to your HTML
• Re: regex to find vowels in anyorder
• A brief history of Perl 6 development in haiku

Perl History

• Perl (wikipedia)
• Perl 5 version history (wikipedia)
• perlhist

• Re: Obtaining old versions of Perl -- Perl 1.0
• modern perl 1.0 by cognominal (aka stefp ??)
• Re: Organizational Culture (Part II): Meta Process (Perl Timeline)
• Re^6: Peculiar hash behavior (brian d foy)

Perl Monks History

• The First Ten Perl Monks
• The First Ten Perl Obfus
• The Top Ten Perl Obfus
• The Top Ten Perl Poems
• History of PerlMonks' Perl News by jdporter

• Re^2: The Highest Rated Node of All Time (Experience Point References and Pranks)

Perl Monks Culture

• Re: How do you track nodes/replies of interest?
• Re^2: Controversial!! - Get rid of the -- vote option (Downvote References)

Why did you get involved with Perl?

• How has Perl affected you? by stevieb (2017)
• Why did you become a Perl expert (or programmer)? by QM (2018)
• [RFC] What is [pP]erl to you, and how has this changed for you over the years (if it has)? by perlfan (2021)

One Liners

• Re: Some Help for a Report About Perl (One-liner References)

XML

• Stepping up from XML::Simple to XML::LibXML
• Perl XML FAQ
• Some questions from beginning user of XML::LibXML and XPath
• XML::LibXML and namespaces
• XPATH DOM traverse html/xml
• XML Newbie
• XML::SAX::ExpatXS - stop parsing?
• Fastest XML Parser for BIG files
• How to write an xpath query including attributes for an XML with namespace
• How to fetch a portion of a XML file to save it in another xml file
• xpath problem using XML::LibXML
• XML::LibXML and Namespace… I don't get it
• chromatic article about XML::Rabbit (XML::LibXML::Augment mentioned in a comment)
• Best XML library to validate XML from untrusted source

Sundial

• Re: Just curious: is there a BOT that downvotes "me?" (summary of behaviour)
• All you need to know about SundialSvc4 (summary of behaviour by LanX)
• Re: Selling swimsuits to a drowning man (stats on SunnyD posts (e.g. eight times out of ten you post nothing but opinion) by Your Mother)
• Reaped: Re: Perl Foundation Community Affairs Team Transparency Report (claims seven ... then four ... downvoters)
• Re^4: Preventing Use of uninitialized value (warning PM newbies by jdporter)
• Re^2: Performance of hash and array inserts (incomplete list of reflexive virtual memory responses)

• Re^7: Perl and MongoDB (historic SunnyD-Buk repartee summary)
• Re: Proposal: eliminate down-votes (longer (original) version of SunnyD-Buk repartee)
• Re: -175 := +127 Thank you all! (Updated!Now -152 := +144) (Buk vs sundial worst nodes comp; SunnyD record: all worst nodes of week, month, year briefly in March 2018)
• Re^7: -175 := +127 Thank you all! (Worst Nodes) (Who has the most centurian nodes? Ovid: 101, SunnyD: 2, LanX: 0)

• Re^2: Two sort in single Array set (hopeful code)
• Re^2: Perl: Why you no modern web framework? (details on worst nodes, responding to wrong post)
• Re^3: (Toward a better PerlMonks) Who do we serve, and why, and how can we do it better? (downvotes)
• Re^4: why appears AnonymousMonk and how to update posts
• Re^2: Read Between the Lines
• Re^3: Short and easy way to write if...elsif syntax
• Re^9: Convert undef to empty string in a hash (typography)
• Re^2: A simple question that can't be asked (more typography)
• Re^2: Can I please have multiple downvotes per (certain monk's) posts.
• Re^3: why does location of function matter?
• Re^2: Just curious: is there a BOT that downvotes "me?"
• Re^2: Optimized remote ping
• Re: A thought-provoking external article about abusive web-sites
• Re^4: A thought-provoking external article about abusive web-sites
• Re^4: [Solved]Need to extract a particular block of lines between two patterns (the "why" behind the behaviour)
• Re: And here's why I think "downvotes" should be eliminated, or tabulated separately ... by salva

• Re^6: -175 := +127 Thank you all! (Worst Nodes) ("anonymous" posts from sundial?)
• Re^9: -175 := +127 Thank you all! (Worst Nodes) (... continued here from Nov 2021 due to its vast size)

• Re: And here's why I think "downvotes" should be eliminated, or tabulated separately ... (is he a real person?)
• Re^2: Perl and MongoDB (four consecutive nodes in a row)
• Re^4: latest perl book. (First non-anony post in a while (Sep 2 2020) plus list of s/knife/chainsaw/ corrections)
• Re^3: Random Nodes are prohibited (Clicking Random Node for the first time hit a SunnyD post)

• My last post on PerlMonks ... (SunnyD's last post 2018-07-24: returned 2019-05-29. 2019:8 posts; 2020:31, 2021:9+)
• Re^4: Review of CGI::Alternatives (SunnyD XP Over Time) (xp over time)

• Re: Verbose Tk Code (bread-truck idiom)
• Re^2: Last and Least (sundial photo torquay)
• Have BrowserUk and sundialsvc4 gone on holiday together?
• BrowserUk Missing but not Forgotten

Other

• Some recent DNA threads
• Re: I have been away from perl for a long time. Need suggestions for getting back in the game!
• Past Polls

PM FAQs

Basics:

• How do I post a question effectively?
• XY Problem
• How (Not) To Ask A Question
• On asking for help
• PerlMonks for the Absolute Beginner
• How do I compose an effective node title?
• Re: RFC - shortform posting guidance for newcomers
• I know what I mean. Why don't you?
• Basic debugging checklist
• On node obliteration
• How To Ask Questions The Smart Way by ESR
• SSCCE: Short, Self Contained, Correct (Compilable), Example (external)
• Short, Self-Contained, Correct Example (PM)

Using strict and warnings:

• Re: Newline's creep in, while using Tie::File (use strict and warnings References)

For getting started with Perl, I put all references nowadays in this node:

• Re: Online Tutorial To Get Started (Learning Perl Links)

Perl books:

• Re: So what is your Perl book "Trilogy" anyway? (Perl Book Links) (list of PM nodes about Perl books)

Perl modules:

• RFC: How to Release Modules on CPAN in 2011
• Best Module Starter?
• José's Guide for creating Perl modules
• Writing Solid CPAN Modules
• Simple Module Tutorial
• How to make a CPAN Module Distribution

And these external references:

• Starting a module with Module::Starter (Perl Training Australia)
• Writing Perl Modules for CPAN book by Sam Tregar (also available as free pdf at Online Web Library)

• Repainting the Monastery

• Suffering from Buffering
• Perl tip: Buffering and IO::Handle

• Example response: how to learn Perl

• Re: Hello World for module writers

• Re: material for a talk about regexes
• Re: Teaching Regular Expression Pattern Matching
• Re: Hiding your S‎crip‎t (Security through Obscurity References)
• Perl 5 Optimizing Compiler
• Re: cannot modify LINUX env vars

• comparing lists and getting an exemtion report

• Re: Alias vs Reference

• Re: Matching and nonmatching multiple regexps at once

• Re: file compare and renaming

• How to hide the console window when GUI s‎crip‎t is run.

• Re^2: Do subroutine variables get destroyed?

• Syntax explanation required (perldoc -q duplicate)

• Avoid string eval and symbolic references (advice from merlyn and MJD)
• older version
• General Advice from MJD
• MJD on fish

• Yes, even you can use CPAN
• stackoverflow - how to install CPAN modules without root privileges

• Site facelift?
• RFC: A Design Proposed for Anonymous Monk (logged out view)
• PerlMonks site design

Perl Internals References

• PerlGuts Illustrated
• Extending and Embedding Perl by Tim Jenness and Simon Cozens
• perlintern
• perlhack
• perlhacktut
• perlhacktips
• perlsource
• perlinterp
• perlguts
• perlapi
• perlcall
• perlxstut
• perlxs
• perlembed
• Hacking perl by robin
• Perl closures: internal details.(Updated)
• Study the Perl source code itself
• Join the perl5porters@perl.org mailing list (see lists.perl.org)
• Yet Another XS Tutorial
• Why not perl have raw/native type

In Memoriam

• PerlMonks Memorial Garden

• Iain Campbell Truskett ("Spoon"/"Koschei") RIP 2003-12-29 (Koschei/spoon)
• On the shoulders of giants... Nick Ing-Simmons Deceased (Perl Foundation)
• So long its been good to know you (VSarkiss)
• Sad news (blazar)
• Ivor Williams (rinceWind) (rinceWind)
• Sad news (Almut) (almut)
• Sad news (Dr Randy Kobes) (randyk)
• RIP, Tad McClellan
• Bill Harp massive heart attack, currently in ICU, prognosis not good
• Sad News: Brian McCauley (4th Feb 1967 - 8th May 2015)
• Hermetic (everything2)
• DrForr is no longer with us (DrForr) (Jeff Goff)
• cider (Steven Loren Fountain)
• nobull (Brian McCauley)
• duff (Jonathan Scott Duff)
• kentnl (Kiwi Kent Fredric - not prolific at PM but very prolific in the Open Source world and on CPAN)
• Sad News: David H Adler (DHA) has passed away

• Delegating responsibility of one's CPAN distributions

Perl Monks Libraries

• Discipulus library by Discipulus
• Discipulus (lots of links)
• kennethk (lots of links)
• roboticus (lots of links)
• blokhead (applied discrete math, algorithms, computability & complexity)
• AppleFritter (Game of Life guru (see his responses to High Performance Game of Life), noticed his home node has lots of useful Perl links)

• LanX
• holli