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Perl 6 Deep Dive

You're reading from  Perl 6 Deep Dive

Product type Book
Published in Sep 2017
Publisher Packt
ISBN-13 9781787282049
Pages 402 pages
Edition 1st Edition
Languages
Author (1):
Andrew Shitov Andrew Shitov
Profile icon Andrew Shitov

Table of Contents (15) Chapters

1. What is Perl 6? 2. Writing Code 3. Working with Variables and Built-in Data Types 4. Working with Operators 5. Control Flow 6. Subroutines 7. Modules 8. Object-Oriented Programming 9. Input and Output 10. Working with Exceptions 11. Regexes 12. Grammars 13. Concurrent Programming 14. Functional Programming 15. Reactive Programming

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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