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Perl 6 Deep Dive

Perl 6 Deep Dive

By : Shitov
3 (4)
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Perl 6 Deep Dive

Perl 6 Deep Dive

3 (4)
By: Shitov

Overview of this book

Perl is a family of high-level, general-purpose, interpreted, dynamic programming languages consisting of Perl 5 and Perl 6. Perl 6 helps developers write concise and declarative code that is easy to maintain. This book is an end-to-end guide that will help non-Perl developers get to grips with the language and use it to solve real-world problems. Beginning with a brief introduction to Perl 6, the first module in the book will teach you how to write and execute basic programs. The second module delves into language constructs, where you will learn about the built-in data types, variables, operators, modules, subroutines, and so on available in Perl 6. Here the book also delves deeply into data manipulation (for example, strings and text files) and you will learn how to create safe and correct Perl 6 modules. You will learn to create software in Perl by following the Object Oriented Paradigm. The final module explains in detail the incredible concurrency support provided by Perl 6. Here you will also learn about regexes, functional programming, and reactive programming in Perl 6. By the end of the book, with the help of a number of examples that you can follow and immediately run, modify, and use in practice, you will be fully conversant with the benefits of Perl 6.
Table of Contents (15 chapters)
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Reading from a stream

There are many different methods that the IO::Handle class offers us for reading from streams. We already have seen a few in the section Simple input and output in Chapter 2, Writing Code. Here, we'll discuss them in detail and see other alternatives.

Reading a single line

We start with the get method, which reads a line from the input stream. For example, to read a line from the standard input, call the method on the $*IN instance, as shown in the next example:

my $line = $*IN.get;
say $line;

The program waits for you to enter some text. After the line is complete and the 'Enter' key is pressed, the get method returns control to the program and then the line is printed to the screen. Alternatively...

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