V-Strings in Perl

A literal of the form v1.20.300.4000 is parsed as a string composed of characters with the specified ordinals. This form is known as v-strings.

A v-string provides an alternative and more readable way to construct strings, rather than use the somewhat less readable interpolation form "\x{1}\x{14}\x{12c}\x{fa0}".

They are any literal that begins with a v and is followed by one or more dot-separated elements. For example −

Example

 Live Demo

#!/usr/bin/perl
$smile = v9786;
$foo = v102.111.111;
$martin = v77.97.114.116.105.110;
print "smile = $smile\n";
print "foo = $foo\n";
print "martin = $martin\n";

Output

This will also produce the same result −

smile = ☺
foo = foo
martin = Martin
Wide character in print at main.pl line 7.