Perl’s split function has a useful feature that will split a string into characters. This works by supplying an empty regex pattern (“//”) to the split function. This can be used to easily split a word into an array of letters, for example:
A popular way to build a list of literal quotes in Perl is to use the quote whitespace operator (qw). It’s terse, versatile and elegant. To see why, let’s look at a typical statement using a list of strings:
A typical way to print every element of an array in Perl is using a foreach loop:
You get the idea - Perl has a repetition operator (x) that repeats the scalar or list on its left by the number on it’s right (like multiplication).
Perl has many string functions, let’s take a look at a some of the most common ones: concatenate, substring and split.
Broadly speaking Perl has two types of strings: quotes that are interpolated at runtime and literal quotes that are not interpolated. Let’s review each of these in turn.
A Beginner’s Introduction to Perl 5.10 talked about the core elements of Perl: variables (scalars, arrays, and hashes), math operators and some basic flow control (the for statement). Now it’s time to interact with the world. (A Beginner’s Introduction…
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