Beefy Boxes and Bandwidth Generously Provided by pair Networks
Perl-Sensitive Sunglasses

Comment on

( #3333=superdoc: print w/replies, xml ) Need Help??
First question. If I call a function, how do I know if it returns a unicode string or not

By reading the documentation. Core functions in perl (like for example uc) return a string of the same kind as they receive: Unicode in, Unicode out. Modules should(!) document what they return.

How is a unicode string encoded (utf8 or 16 etc?)

If you mean by "Unicode string" a string in perl's internal format, you shouldn't (and don't have to) care how it's encoded.

Second question. If I have a unicode string, how do I output it to my console window so that it appears correctly?

If it's a string in perl's internal format, you need to add an encoding layer. For testing, use this small snippet:

use strict; use warnings; use charnames qw(:full); binmode STDOUT, ":encoding(UTF-8)"; print "Euro: \N{EURO SIGN}\n"

If this prints an Euro sign, your terminal works with UTF-8. If it shows Mojibake, configure your terminal to accept UTF-8.

See also: Encodings, Unicode and Perl. It seems that you grasped the most important concepts about Unicode and Perl already, you just need to get a bit more familiar with how Perl handles it.

Perl 6 - links to (nearly) everything that is Perl 6.

In reply to Re: Help needed understanding unicode in perl by moritz
in thread Help needed understanding unicode in perl by Anonymous Monk

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, 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, 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.
  • Log In?

    What's my password?
    Create A New User
    NodeReaper wonders through a maze of twisty little sayings, all alive

    How do I use this? | Other CB clients
    Other Users?
    Others chanting in the Monastery: (6)
    As of 2018-04-25 21:25 GMT
    Find Nodes?
      Voting Booth?