mirror of
https://github.com/lunarmodules/luasocket.git
synced 2024-12-27 21:08:21 +01:00
203 lines
4.5 KiB
HTML
203 lines
4.5 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
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"http://www.w3.org/TR/html4/strict.dtd">
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<html>
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<head>
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<title>LuaSocket: Network support for the Lua language</title>
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<link rel="stylesheet" href="reference.css" type="text/css">
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</head>
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<body>
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<!-- header +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<div class=header>
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<hr>
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<center>
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<table summary="LuaSocket logo">
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<tr><td align=center><a href="http://www.lua.org">
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<img border=0 alt="LuaSocket" src="luasocket.png">
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</a></td></tr>
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<tr><td align=center valign=top>Network support for the Lua language
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</td></tr>
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</table>
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<p class=bar>
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<a href="home.html">home</a> ·
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<a href="home.html#download">download</a> ·
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<a href="introduction.html">introduction</a> ·
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<a href="reference.html">reference</a>
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</p>
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</center>
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<hr>
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</div>
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<!-- code +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<h2 id=code>Code</h2>
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<p>
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The <tt>code.lua</tt> module offers routines to convert back and forth
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some common types of content encoding, including Base 64 and URL
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escaping. Base 64 is described in
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<a href="http://www.cs.princeton.edu/~diego/rfc/rfc2045.txt">RFC
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2045</a>,
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URL escaping is described in
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<a href="http://www.cs.princeton.edu/~diego/rfc/rfc2396.txt">RFC
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2396</a>.
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</p>
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<!-- base64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<p class=name id="base64">
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socket.code.<b>base64(</b>content, single<b>)</b>
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</p>
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<p class=description>
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Applies the Base 64 content coding to a string.
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</p>
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<p class=parameters>
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<tt>Content</tt> is the string to be encoded.
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If <tt>single</tt> is set to anything
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but <tt>nil</tt>, the output is returned as a single
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line, otherwise the function splits the content into 76 character long
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lines after encoding.
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</p>
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<p class=result>
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The function returns the encoded string.
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</p>
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<pre class=example>
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code = socket.code.base64("diego:password")
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-- code = "ZGllZ286cGFzc3dvcmQ="
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</pre>
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<!-- unbase64 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<p class=name id="unbase64">
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socket.code.<b>unbase64(</b>content<b>)</b>
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</p>
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<p class=description>
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Removes the Base 64 content coding from a string.
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</p>
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<p class=parameters>
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<tt>Content</tt> is the string to be decoded.
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</p>
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<p class=result>
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The function returns the decoded string.
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</p>
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<!-- escape +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<p class=name id="escape">
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socket.code.<b>escape(</b>content<b>)</b>
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</p>
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<p class=description>
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Applies the URL escaping content coding to a string
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Each byte is encoded as a percent character followed
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by the two byte hexadecimal representation of its integer
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value.
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</p>
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<p class=parameters>
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<tt>Content</tt> is the string to be encoded.
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</p>
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<p class=result>
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The function returns the encoded string.
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</p>
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<pre class=example>
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code = socket.code.escape("/#?;")
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-- code = "%2f%23%3f%3b"
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</pre>
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<!-- unescape +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<p class=name id="unescape">
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socket.code.<b>unescape(</b>content<b>)</b>
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</p>
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<p class=description>
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Removes the URL escaping content coding from a string.
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</p>
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<p class=parameters>
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<tt>Content</tt> is the string to be decoded.
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</p>
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<p class=return>
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The function returns the decoded string.
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</p>
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<!-- hexa +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<p class=name id="hexa">
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socket.code.<b>hexa(</b>content<b>)</b>
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</p>
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<p class=description>
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Applies the hexadecimal content coding to a string.
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Each byte is encoded as the byte hexadecimal
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representation of its integer value. <p>
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</p>
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<p class=parameters>
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<tt>Content</tt> is the string to be encoded.
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</p>
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<p class=return>
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The function returns the encoded string.
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</p>
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<pre class=example>
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code = socket.code.hexa("\16\32\255")
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-- code = "1020ff"
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</pre>
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<!-- unhexa +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<p class=name id="unhexa">
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socket.code.<b>unhexa(</b>content<b>)</b>
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</p>
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<p class=description>
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Removes the hexadecimal content coding from a string.
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</p>
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<p class=parameters>
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<tt>Content</tt> is the string to be decoded.
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</p>
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<p class=return>
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The function returns the decoded string.
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</p>
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<!-- footer +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ -->
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<div class=footer>
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<hr>
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<center>
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<p class=bar>
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<a href="home.html">home</a> ·
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<a href="home.html#down">download</a> ·
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<a href="introduction.html">introduction</a> ·
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<a href="reference.html">reference</a>
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</p>
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<p>
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<small>
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Last modified by Diego Nehab on <br>
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Sat Aug 9 01:00:41 PDT 2003
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</small>
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</p>
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</center>
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</div>
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</body>
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</html>
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