New PDF release: Advanced Perl Programming

By Sriram Srinivasan

ISBN-10: 1565922204

ISBN-13: 9781565922204

Even if your wisdom of Perl is informal or deep, this publication will make you a extra comprehensive programmer. It covers complicated innovations for dealing with production-ready Perl courses and explains tools for manipulating facts and items which could have gave the impression of magic prior to. moreover, it units Perl within the context of a bigger atmosphere, giving you the historical past you would like for facing networks, databases, and GUIs. it's also a dialogue of internals that can assist you application extra successfully and embed Perl inside of C or C inside Perl. significant issues contain the sensible use of programs and periods (object-oriented programming), complicated facts constructions, patience (e.g., utilizing a database), networking, graphical interfaces utilizing the Tk toolkit, interplay with interval features, embedding and increasing the Perl interpreter, and chosen internals.

Show description

Read or Download Advanced Perl Programming PDF

Best javascript books

Sencha Touch 2 Mobile JavaScript Framework by John Earl Clark PDF

Sencha contact is a flexible HTML5-based framework for constructing cellular net apps. Sencha contact 2 has raised the bar for constructing wealthy cellular internet functions with HTML5. utilizing this framework you could strengthen cellular net apps that feel and appear like local apps on iOS, Android, Blackberry, and home windows cellular.

Sergi Mansilla's Reactive Programming with RxJS: Untangle Your Asynchronous PDF

Reactive programming is innovative. It makes asynchronous programming fresh, intuitive, and strong. Use the RxJS library to write down advanced courses in an easy approach, unifying asynchronous mechanisms similar to callbacks and gives you right into a robust information kind: the Observable. discover ways to take into consideration your courses as streams of information so that you can remodel through expressing what may still occur, rather than having to painstakingly application the way it should still take place.

Download e-book for kindle: JavaScript Recipes: A Problem-Solution Approach by Russ Ferguson, Keith Cirkel

Quick become aware of ideas to universal difficulties, most sensible practices you could keep on with, and every little thing JavaScript has to supply. utilizing a problem-solution strategy, this ebook takes you from language fundamentals like integrated gadgets and stream keep an eye on all of the method to complex optimization thoughts, frameworks and Node.

Extra info for Advanced Perl Programming

Sample text

You can safely skip this section without loss of continuity. [6] [6] This is true whether the variable is global, dynamically scoped (using local()), or lexically scoped (using my()). More details are given in Chapter 3. 3: A variable is a name and value pair An array or a hash is not just a collection of numbers or strings. 4 illustrates. 4 represents a distinct value. An array has one value that represents the collection of scalar values. Each element of the array is a distinct scalar value. This is analogous to a pride of lions being treated as a single entity (which is why we refer to it in the singular) that has properties distinct from those of the individual lion.

Given a category, print the year and title of all entries for that category. ● Print all entries sorted by category or by year. com/. 2. 2: Data structure to represent Oscar winners Each entry includes a category, a year, and the name of the corresponding winner. We choose to keep this information in an anonymous array (an anonymous hash would do just as well). The two indices %year_index and %category_index map the year and category to anonymous arrays containing references to the entries. txt") || die "Could not open database: $:"; %category_index = (); %year_index = (); while ($line = ) { chomp $line; ($year, $category, $name) = split (/:/, $line); create_entry($year, $category, $name) if $name; } sub create_entry { # create_entry (year, category, name) my($year, $category, $name) = @_; # Create an anonymous array for each entry $rlEntry = [$year, $category, $name]; # Add this to the two indices push (@{$year_index {$year}}, $rlEntry); # By Year push (@{$category_index{$category}}, $rlEntry); # By Category } Notice that each push statement does a fair bit of work.

Java and C++ have the class declaration to compose new data types out of fundamental data types. These constructs allow you to combine a bunch of named attributes under a single banner but still provide access to each individual attribute. 1. [1] We'll discuss a module called ObjectTemplate in Chapter 7, Object-Oriented Programming, that provides this. 1: Simulating C structures with Perl hashes Perl's implementation of hash tables is actually quite efficient in terms of both performance and space.

Download PDF sample

Advanced Perl Programming by Sriram Srinivasan


by Thomas
4.2

Rated 4.36 of 5 – based on 9 votes