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Perl 6 Deep Dive

You're reading from   Perl 6 Deep Dive Data manipulation, concurrency, functional programming, and more

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Product type Paperback
Published in Sep 2017
Publisher Packt
ISBN-13 9781787282049
Length 402 pages
Edition 1st Edition
Languages
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Author (1):
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Andrew Shitov Andrew Shitov
Author Profile Icon Andrew Shitov
Andrew Shitov
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Table of Contents (15) Chapters Close

1. What is Perl 6? FREE CHAPTER 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

Simple input and output

In the previous examples, we used the built-in print and say functions to print something to the console (speaking more strictly, to the standard output attached to the program). In this section, you will learn how to perform basic reading from the standard input. This is basically how the program gets what you type onto the console.

To read the input, there are a few functions that you may use directly without loading any modules. They are listed in the following table:

Function What it does
get This reads one line from the input and returns it
lines This returns the list of lines containing the data lines that came from the standard input
slurp This returns a string that contains the whole input

The get and line functions may be used when you need to parse the input data line by line. For example, call get as many times as you need if you...

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