Locale::Language - ISO two letter codes for language identification (ISO 639)

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You can either access the codes via the <a href="#conversion-routines">"conversion routines"</a> (described below), or via the two functions which return lists of all language codes or all language names.</p> <h1 id="CONVERSION-ROUTINES"><a class="permalink" href="#CONVERSION-ROUTINES">#</a><a id="CONVERSION"></a>CONVERSION ROUTINES</h1> <p>There are two conversion routines: <code>code2language()</code> and <code>language2code()</code>.</p> <dl> <dt id="code2language()"><a class="permalink" href="#code2language()">#</a><a id="code2language"></a>code2language()</dt> <dd> <p>This function takes a two letter language code and returns a string which contains the name of the language identified. If the code is not a valid language code, as defined by ISO 639, then <code>undef</code> will be returned.</p> <pre><code>$lang = code2language($code);</code></pre> </dd> <dt id="language2code()"><a class="permalink" href="#language2code()">#</a><a id="language2code"></a>language2code()</dt> <dd> <p>This function takes a language name and returns the corresponding two letter language code, if such exists. If the argument could not be identified as a language name, then <code>undef</code> will be returned.</p> <pre><code>$code = language2code('French');</code></pre> <p>The case of the language name is not important. See the section <a href="#KNOWN-BUGS-AND-LIMITATIONS">"KNOWN BUGS AND LIMITATIONS"</a> below.</p> </dd> </dl> <h1 id="QUERY-ROUTINES"><a class="permalink" href="#QUERY-ROUTINES">#</a><a id="QUERY"></a>QUERY ROUTINES</h1> <p>There are two function which can be used to obtain a list of all language codes, or all language names:</p> <dl> <dt id="all_language_codes()"><a class="permalink" href="#all_language_codes()">#</a><a id="all_language_codes"></a><code>all_language_codes()</code></dt> <dd> <p>Returns a list of all two-letter language codes. The codes are guaranteed to be all lower-case, and not in any particular order.</p> </dd> <dt id="all_language_names()"><a class="permalink" href="#all_language_names()">#</a><a id="all_language_names"></a><code>all_language_names()</code></dt> <dd> <p>Returns a list of all language names for which there is a corresponding two-letter language code. The names are capitalised, and not returned in any particular order.</p> </dd> </dl> <h1 id="EXAMPLES"><a class="permalink" href="#EXAMPLES">#</a>EXAMPLES</h1> <p>The following example illustrates use of the <code>code2language()</code> function. The user is prompted for a language code, and then told the corresponding language name:</p> <pre><code>$| = 1; # turn off buffering print "Enter language code: "; chop($code = <STDIN>); $lang = code2language($code); if (defined $lang) { print "$code = $lang\n"; } else { print "'$code' is not a valid language code!\n"; }</code></pre> <h1 id="KNOWN-BUGS-AND-LIMITATIONS"><a class="permalink" href="#KNOWN-BUGS-AND-LIMITATIONS">#</a><a id="KNOWN"></a>KNOWN BUGS AND LIMITATIONS</h1> <ul> <li><p>In the current implementation, all data is read in when the module is loaded, and then held in memory. A lazy implementation would be more memory friendly.</p> </li> <li><p>Currently just supports the two letter language codes - there are also three-letter codes, and numbers. Would these be of any use to anyone?</p> </li> </ul> <h1 id="SEE-ALSO"><a class="permalink" href="#SEE-ALSO">#</a><a id="SEE"></a>SEE ALSO</h1> <dl> <dt id="Locale::Country"><a class="permalink" href="#Locale::Country">#</a><a id="Locale"></a>Locale::Country</dt> <dd> <p>ISO codes for identification of country (ISO 3166). Supports 2-letter, 3-letter, and numeric country codes.</p> </dd> <dt id="Locale::Script"><a class="permalink" href="#Locale::Script">#</a><a id="Locale1"></a>Locale::Script</dt> <dd> <p>ISO codes for identification of written scripts (ISO 15924).</p> </dd> <dt id="Locale::Currency"><a class="permalink" href="#Locale::Currency">#</a><a id="Locale2"></a>Locale::Currency</dt> <dd> <p>ISO three letter codes for identification of currencies and funds (ISO 4217).</p> </dd> <dt id="ISO-639:1988-(E/F)"><a class="permalink" href="#ISO-639:1988-(E/F)">#</a><a id="ISO"></a><a id="ISO-639:1988-E-F"></a>ISO 639:1988 (E/F)</dt> <dd> <p>Code for the representation of names of languages.</p> </dd> <dt id="http://lcweb.loc.gov/standards/iso639-2/langhome.html"><a class="permalink" href="#http://lcweb.loc.gov/standards/iso639-2/langhome.html">#</a><a id="http"></a><a id="http:-lcweb.loc.gov-standards-iso639-2-langhome.html"></a>http://lcweb.loc.gov/standards/iso639-2/langhome.html</dt> <dd> <p>Home page for ISO 639-2.</p> </dd> </dl> <h1 id="AUTHOR"><a class="permalink" href="#AUTHOR">#</a>AUTHOR</h1> <p>Neil Bowers <neil@bowers.com></p> <h1 id="COPYRIGHT"><a class="permalink" href="#COPYRIGHT">#</a>COPYRIGHT</h1> <p>Copyright (C) 2002-2004, Neil Bowers.</p> <p>Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).</p> <p>This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself.</p> </div> <div id="footer"> <p>Perldoc Browser is maintained by Dan Book (<a href="https://metacpan.org/author/DBOOK">DBOOK</a>). Please contact him via the <a href="https://github.com/Grinnz/perldoc-browser/issues">GitHub issue tracker</a> or <a href="mailto:dbook@cpan.org">email</a> regarding any issues with the site itself, search, or rendering of documentation.</p> <p>The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. Please contact them via the <a href="https://github.com/Perl/perl5/issues">Perl issue tracker</a>, the <a href="https://lists.perl.org/list/perl5-porters.html">mailing list</a>, or <a href="https://kiwiirc.com/client/irc.perl.org/p5p">IRC</a> to report any issues with the contents or format of the documentation.</p> </div> </div> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.slim.min.js" integrity="sha512-/DXTXr6nQodMUiq+IUJYCt2PPOUjrHJ9wFrqpJ3XkgPNOZVfMok7cRw6CSxyCQxXn6ozlESsSh1/sMCTF1rL/g==" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js" integrity="sha512-ubuT8Z88WxezgSqf3RLuNi5lmjstiJcyezx34yIU2gAHonIi27Na7atqzUZCOoY4CExaoFumzOsFQ2Ch+I/HCw==" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script> <script src="/js/highlight.pack.js"></script> <script>hljs.highlightAll();</script> </body> </html>

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Locale::Language - ISO two letter codes for language identification (ISO 639) - Perldoc Browser