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<h1>Node.js v0.10.29 Manual & Documentation</h1>
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<h2>Table of Contents</h2>
<ul>
<li><a href="#punycode_punycode">punycode</a><ul>
<li><a href="#punycode_punycode_decode_string">punycode.decode(string)</a></li>
<li><a href="#punycode_punycode_encode_string">punycode.encode(string)</a></li>
<li><a href="#punycode_punycode_tounicode_domain">punycode.toUnicode(domain)</a></li>
<li><a href="#punycode_punycode_toascii_domain">punycode.toASCII(domain)</a></li>
<li><a href="#punycode_punycode_ucs2">punycode.ucs2</a><ul>
<li><a href="#punycode_punycode_ucs2_decode_string">punycode.ucs2.decode(string)</a></li>
<li><a href="#punycode_punycode_ucs2_encode_codepoints">punycode.ucs2.encode(codePoints)</a></li>
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<li><a href="#punycode_punycode_version">punycode.version</a></li>
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<div id="apicontent">
<h1>punycode<span><a class="mark" href="#punycode_punycode" id="punycode_punycode">#</a></span></h1>
<pre class="api_stability_2">Stability: 2 - Unstable</pre><p><a href="http://mths.be/punycode">Punycode.js</a> is bundled with Node.js v0.6.2+. Use
<code>require('punycode')</code> to access it. (To use it with other Node.js versions,
use npm to install the <code>punycode</code> module first.)
</p>
<h2>punycode.decode(string)<span><a class="mark" href="#punycode_punycode_decode_string" id="punycode_punycode_decode_string">#</a></span></h2>
<p>Converts a Punycode string of ASCII code points to a string of Unicode code
points.
</p>
<pre><code>// decode domain name parts
punycode.decode('maana-pta'); // 'mañana'
punycode.decode('--dqo34k'); // '☃-⌘'</code></pre>
<h2>punycode.encode(string)<span><a class="mark" href="#punycode_punycode_encode_string" id="punycode_punycode_encode_string">#</a></span></h2>
<p>Converts a string of Unicode code points to a Punycode string of ASCII code
points.
</p>
<pre><code>// encode domain name parts
punycode.encode('mañana'); // 'maana-pta'
punycode.encode('☃-⌘'); // '--dqo34k'</code></pre>
<h2>punycode.toUnicode(domain)<span><a class="mark" href="#punycode_punycode_tounicode_domain" id="punycode_punycode_tounicode_domain">#</a></span></h2>
<p>Converts a Punycode string representing a domain name to Unicode. Only the
Punycoded parts of the domain name will be converted, i.e. it doesn't matter if
you call it on a string that has already been converted to Unicode.
</p>
<pre><code>// decode domain names
punycode.toUnicode('xn--maana-pta.com'); // 'mañana.com'
punycode.toUnicode('xn----dqo34k.com'); // '☃-⌘.com'</code></pre>
<h2>punycode.toASCII(domain)<span><a class="mark" href="#punycode_punycode_toascii_domain" id="punycode_punycode_toascii_domain">#</a></span></h2>
<p>Converts a Unicode string representing a domain name to Punycode. Only the
non-ASCII parts of the domain name will be converted, i.e. it doesn't matter if
you call it with a domain that's already in ASCII.
</p>
<pre><code>// encode domain names
punycode.toASCII('mañana.com'); // 'xn--maana-pta.com'
punycode.toASCII('☃-⌘.com'); // 'xn----dqo34k.com'</code></pre>
<h2>punycode.ucs2<span><a class="mark" href="#punycode_punycode_ucs2" id="punycode_punycode_ucs2">#</a></span></h2>
<h3>punycode.ucs2.decode(string)<span><a class="mark" href="#punycode_punycode_ucs2_decode_string" id="punycode_punycode_ucs2_decode_string">#</a></span></h3>
<p>Creates an array containing the decimal code points of each Unicode character
in the string. While <a href="http://mathiasbynens.be/notes/javascript-encoding">JavaScript uses UCS-2
internally</a>, this function
will convert a pair of surrogate halves (each of which UCS-2 exposes as
separate characters) into a single code point, matching UTF-16.
</p>
<pre><code>punycode.ucs2.decode('abc'); // [97, 98, 99]
// surrogate pair for U+1D306 tetragram for centre:
punycode.ucs2.decode('\uD834\uDF06'); // [0x1D306]</code></pre>
<h3>punycode.ucs2.encode(codePoints)<span><a class="mark" href="#punycode_punycode_ucs2_encode_codepoints" id="punycode_punycode_ucs2_encode_codepoints">#</a></span></h3>
<p>Creates a string based on an array of decimal code points.
</p>
<pre><code>punycode.ucs2.encode([97, 98, 99]); // 'abc'
punycode.ucs2.encode([0x1D306]); // '\uD834\uDF06'</code></pre>
<h2>punycode.version<span><a class="mark" href="#punycode_punycode_version" id="punycode_punycode_version">#</a></span></h2>
<p>A string representing the current Punycode.js version number.
</p>
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