The Problem With Sigils. Sigils (such as PerlLanguage's $scalar @array %hash, RubyLanguage's @member, etc) encode type or scope information in variable names, and therefore remind some people of HungarianNotation.
However, one of the big complaints about HungarianNotation is that, if one changes the type, then one must also (global search and replace) change the name, a complaint that doesn't apply to sigils, since the name and the type are one and the same. From Novice to Adept: Embracing Idioms. If you ever want to annoy a native speaker of a language you're learning, translate idioms from your primary language literally into the other language.
Architecture and Design, and how I learned what I know about bot. One of my team asked me today for book recommendations on software design and architecture, and I thought about it, and then I realised, well, I haven't really read any.
Which sort of struck me as surprising, because I've got a head half full of information and ideas about how to do it (the other half being full of perl ... probably ...) so it's got to have come from somewhere. Now, admittedly, I've been programming since 1988, first for a hobby and then for money and as a hobby, so I've probably forgotten how I learned a lot of things, not to mention a fair few of the things themselves. Talk: Swine Before Perl. The Swine Before Perl In November 2001 I gave an invited talk at the inaugural Lightweight Languages conference that has since become somewhat notorious (in netspace, it is said to be “kickassing genial”).
DrDobb's Journal was kind enough to record the conference and professionally edit the tracks. They unfortunately misplaced the audio track, and said they were unable to locate the backups. In cyberspace, however, nothing is ever lost; as Linux Torvalds said, “Real Men don't make backups. Perl Myths - OSCON 2008. Perl 101 - Index. How a Perl 5 Program Works. In the discussions which prompted me to write On Parsing Perl 5, I've read many misconceptions of how Perl 5 works.
The strangest example is a comment on Lambda the Ultimate which contains an incorrect suggestion that Perl 5 subroutines take the source code of the program as an argument to resolve ambiguous parsing. Someone elsewhere gave the example that Perl gurus preface answers to the question "Is Perl 5 interpreted or compiled? " Perlish Lisp. Copyright © 2004 Gene Michael Stover.
All rights reserved. Permission to copy, store, & view this document unmodified & in its entirety is granted. Contents Another programmer mentioned that, though he likes Lisp, he found Perl to be easier for basic data processing tasks. Perl is ideal & damned near optimal for processing input files that are one-record-per-line. . # an example of the classic Perl loop while(<>) { chomp; @Line = split "\t",$_; if ($Line[4] =~ /\.hooha$/) { ... } } Famous Perl One-Liners Explained, Part II: Line Numbering. The 81% Solution. An error has been encountered in accessing this page. 1.
Server: use.perl.org 2. URL path: /use.perl.org/~Ovid/journal/39179 3. Error notes: NONE 4. Error type: 404 5. A Modern Style of Programming. Something a casual user of a language will miss out on, is using the latest and greatest libraries of that language and generally programming in a modern style.
The best-kept secret in programming conferences, especially in a. I know, the economy sucks, and everything is expensive these days.
It’s even worse for you, a polyglot programmer with a serious programming-language obsession. You prowl Proggit, lounge at LtU, and occasionally step on over to Stack Overflow. But it’s just not enough. You need more. You need to hang out in meatspace with other fascinating programmers, diving into modern object systems, getting mechanical with crazy VMs, hacking on code like the wild code-hacking beast that you are. Angry Perl Users.
I work on LangPop.com for fun.
I make a tiny bit of money from the adsense there, but nothing much to speak of. Unlike the TIOBE folks, I don’t sell my data to anyone. So it can be a bit frustrating when people get all bent out of shape about the results. A case in point was my recent article here, entitled Python “Surpasses” Perl?. In case the title wasn’t a dead giveaway, I’ll spell things out: Functional Pearl: Type-safe pattern combinators.
Functional Pearl: Type-safe pattern combinators, by Morten Rhiger: Macros still have not made their way into typed higher-order programming languages such as Haskell and Standard ML. Therefore, to extend the expressiveness of Haskell or Standard ML gradually, one must express new linguistic features in terms of functions that fit within the static type systems of these languages. This is particularly challenging when introducing features that span across multiple types and that bind variables. The A-Z of Programming Languages: Perl. Computerworld is undertaking a series of investigations into the most widely-used programming languages.
Previously we have spoken to Alfred v. Aho of AWK fame, S. Tucker Taft on the Ada 1995 and 2005 revisions, Microsoft about its server-side script engine ASP, Chet Ramey about his experiences maintaining Bash, Bjarne Stroustrup of C++ fame and to Charles H. Moore about the design and development of Forth. The A-Z of Programming Languages: Perl. Computerworld is undertaking a series of investigations into the most widely-used programming languages. Programmer: new to the area… seeks suppor. SQLFairy - The SQL Translator. Perl 6 to be first truly extensible programming language. Perl vision gets sharper PORTLAND, Ore.'Version 6 of the Perl will be the first truly extensible programming language, promised Perl creator Larry Wall during his annual "State of the Onion" speech at the O'Reilly Open Source Conference (OSCON), being held this week. Other languages have claimed to be extensible, though they have all fallen short in one way or the other, Wall asserted.
"No computer language has ever taken extensibility seriously. All languages fall into the one true syntax syndrome, and we want to escape that," he added. For power users of this open source language, such extensibility could mean that they will be able to augment the language with instructions, syntax, expressions, operators and other features to meet their own needs. The rise of scripting languages and the fall of Java. Java is very much in full retreat. -- R. Loui Professor Ronald Loui has an interesting article on the rise of scripting languages (In Praise of Scripting: Real Programming Pragmatism) in the July 2008 issue of IEEE Computer. It claims scripting languages such as Perl, Python, and Javascript have dramatically fulfilled their early promise, provide many benefits, and are poised to take over the lead from Java. However, the academic programming language community is stuck in theory and hasn't recognized the ascendence of scripting languages.
I agree that scripting languages are on the rise. As for the claim that Java is in full retreat, it strikes me as wishful thinking. I personally believe that CS1 [freshman computer science] Java is the greatest single mistake in the history of computing curricula. -- R. Python and Ruby have the enviable properties that almost no one dislikes them, and almost everyone respects them. -- R. The ascent of scripting languages. A few more Python thoughts from a Perl guy. Is ORM worth it? Why I won’t learn Perl (voluntarily) Why Perl 6 scares me. Higher-Order Perl.