Hi Monks,

Can you tell me why this example below does not work in perl v5.28? 

    use utf8;

    sub £_to_¥ { ... }

    my $yen = £_to_¥('1000£');

[download]
It is from book http://modernperlbooks.com/books/modern_perl_2016/03-perl-language.html#VW5pY29kZWFuZFN0cmluZ3M by chromatic.

This is my tiny script and its output with diagnostics. 

#!/usr/bin/perl
use strict;
use warnings;
use diagnostics;
use utf8;
use feature qw/say/;
binmode STDOUT, ":utf8";

my $€ = 1;
say '------------------------';

[download]
Output: 
Unrecognized character \x{20ac}; marked by <-- HERE after my $<-- HERE
+ near
    column 5 at ./uni2.pl line 10 (#1)
    (F) The Perl parser has no idea what to do with the specified char
+acter
    in your Perl script (or eval) near the specified column.  Perhaps 
+you
    tried  to run a compressed script, a binary program, or a director
+y as
    a Perl program.
    
Uncaught exception from user code:
    Unrecognized character \x{20ac}; marked by <-- HERE after my $<-- 
+HERE near column 5 at ./uni2.pl line 10.

[download]

In reply to Currency symbols in variable names by pme

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.