Perl Split Function


	Lesson 12 Objective	Perl Split function Lesson describes application of the Perl Split Function
		Write two programs using `join` and `split`, one of which writes an array to a file and the other which reads the array from the file. The `split` function splits up a delimited string into a list (or an array). This is the syntax of the `split` function: `split` /regexp/, SCALAR, limit For example, the colon-delimited string from the previous lesson: @array = ("Foo", "Bar", "Baz", "Boz"); print join(':', @array), "\n"; can be split like this: $string = 'Foo:Bar:Baz:Boz'; @array = split(/:/, $string); Finally, if included, the limit parameter can be used to limit the number of elements that will be created in the resulting list. For instance, this: @array = split(/:/, $string, 3); will result in three elements: `"Foo"`, `"Bar"`, and `"Baz:Bob"`. In order to experiment with `join` and split, you will probably want to know how to read and write to files. Again, this is covered in greater detail later in the course, but we'll cover the fundamentals of simple file I/O here. Exercise Completion You will need the information presented in the file I/O sidebar to complete this lesson's exercise. Perl Split Function - Exercise Now that you have all the necessary data about `join` and `split`, try your hand at writing a pair of programs using them. Perl Split Function - Exercise