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Move doc/us/ to docs/, replacing the gh-pages branch.

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Hisham Muhammad
2022-06-24 12:12:13 -03:00
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color: #47555c;
font-size: 16px;
font-family: "Open Sans", sans-serif;
margin: 0;
padding: 0;
background: #eff4ff;
}
a:link { color: #008fee; }
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h4 { font-size:16px; }
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background: #c1cce4;
border: 0px;
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font-family: "Open Sans Mono", "Andale Mono", monospace;
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font-family: "Open Sans Mono", "Andale Mono", monospace;
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}
img {
border-width: 0px;
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.example {
background-color: #323744;
color: white;
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padding: 16px 24px;
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}
#container {
}
#product {
background-color: white;
padding: 10px;
height: 130px;
border-bottom: solid #d3dbec 1px;
}
#product big {
font-size: 42px;
}
#product strong {
font-weight: normal;
}
#product_logo {
float: right;
}
#product_name {
padding-top: 15px;
padding-left: 30px;
font-size: 42px;
font-weight: normal;
}
#product_description {
padding-left: 30px;
color: #757779;
}
#main {
background: #eff4ff;
margin: 0;
}
#navigation {
width: 100%;
background-color: rgb(44,62,103);
padding: 10px;
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}
#navigation ul li a {
color: rgb(136, 208, 255);
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color: white;
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display: inline;
list-style-type: none;
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}
#navigation li {
padding: 10px;
padding: 10px;
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#navigation li li {
}
#navigation li:hover a {
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padding: 20px;
width: 800px;
margin-left: auto;
margin-right: auto;
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#about {
display: none;
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dl.reference {
background-color: white;
padding: 20px;
border: solid #d3dbec 1px;
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dl.reference dt {
padding: 5px;
padding-top: 25px;
color: #637bbc;
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dl.reference dl dt {
padding-top: 5px;
color: #637383;
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body {
font: 10pt "Times New Roman", "TimeNR", Times, serif;
}
a {
font-weight:bold; color: #004080; text-decoration: underline;
}
#main {
background-color: #ffffff; border-left: 0px;
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margin-left: 2%; margin-right: 2%; background-color: #ffffff;
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#content {
margin-left: 0px; padding: 1em; border-left: 0px; border-right: 0px; background-color: #ffffff;
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display: none;
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font-family: "Andale Mono", monospace;
font-size: 8pt;
page-break-inside: avoid;
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>LuaFileSystem</title>
<link rel="stylesheet" href="doc.css" type="text/css"/>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div id="container">
<div id="product">
<div id="product_logo">
<a href="http://keplerproject.github.io/luafilesystem">
<img alt="LuaFileSystem" src="luafilesystem.png"/>
</a>
</div>
<div id="product_name"><big><strong>LuaFileSystem</strong></big></div>
<div id="product_description">File System Library for the Lua Programming Language</div>
</div> <!-- id="product" -->
<div id="main">
<div id="navigation">
<h1>LuaFileSystem</h1>
<ul>
<li><a href="index.html">Home</a>
<ul>
<li><a href="index.html#overview">Overview</a></li>
<li><a href="index.html#status">Status</a></li>
<li><a href="index.html#download">Download</a></li>
<li><a href="index.html#history">History</a></li>
<li><a href="index.html#credits">Credits</a></li>
</ul>
</li>
<li><a href="manual.html">Manual</a>
<ul>
<li><a href="manual.html#introduction">Introduction</a></li>
<li><a href="manual.html#building">Building</a></li>
<li><a href="manual.html#installation">Installation</a></li>
<li><a href="manual.html#reference">Reference</a></li>
</ul>
</li>
<li><strong>Examples</strong></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Project</a>
<ul>
<li><a href="https://github.com/keplerproject/luafilesystem/issues">Bug Tracker</a></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Git</a></li>
</ul>
</li>
<li><a href="license.html">License</a></li>
</ul>
</div> <!-- id="navigation" -->
<div id="content">
<h2><a name="example"></a>Examples</h2>
<h3>Directory iterator</h3>
<p>The following example iterates over a directory and recursively lists the
attributes for each file inside it.</p>
<pre class="example">
local lfs = require"lfs"
function attrdir (path)
for file in lfs.dir(path) do
if file ~= "." and file ~= ".." then
local f = path..'/'..file
print ("\t "..f)
local attr = lfs.attributes (f)
assert (type(attr) == "table")
if attr.mode == "directory" then
attrdir (f)
else
for name, value in pairs(attr) do
print (name, value)
end
end
end
end
end
attrdir (".")
</pre>
</div> <!-- id="content" -->
</div> <!-- id="main" -->
<div id="about">
<p><a href="http://validator.w3.org/check?uri=referer">Valid XHTML 1.0!</a></p>
</div> <!-- id="about" -->
</div> <!-- id="container" -->
</body>
</html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>LuaFileSystem</title>
<link rel="stylesheet" href="doc.css" type="text/css"/>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div id="container">
<div id="product">
<div id="product_logo">
<a href="http://keplerproject.github.io/luafilesystem">
<img alt="LuaFileSystem" src="luafilesystem.png"/>
</a>
</div>
<div id="product_name"><big><strong>LuaFileSystem</strong></big></div>
<div id="product_description">File System Library for the Lua Programming Language</div>
</div> <!-- id="product" -->
<div id="main">
<div id="navigation">
<h1>LuaFileSystem</h1>
<ul>
<li><strong>Home</strong>
<ul>
<li><a href="index.html#overview">Overview</a></li>
<li><a href="index.html#status">Status</a></li>
<li><a href="index.html#download">Download</a></li>
<li><a href="index.html#history">History</a></li>
<li><a href="index.html#credits">Credits</a></li>
</ul>
</li>
<li><a href="manual.html">Manual</a>
<ul>
<li><a href="manual.html#introduction">Introduction</a></li>
<li><a href="manual.html#building">Building</a></li>
<li><a href="manual.html#installation">Installation</a></li>
<li><a href="manual.html#reference">Reference</a></li>
</ul>
</li>
<li><a href="examples.html">Examples</a></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Project</a>
<ul>
<li><a href="https://github.com/keplerproject/luafilesystem/issues">Bug Tracker</a></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Git</a></li>
</ul>
</li>
<li><a href="license.html">License</a></li>
</ul>
</div> <!-- id="navigation" -->
<div id="content">
<h2><a name="overview"></a>Overview</h2>
<p>LuaFileSystem is a <a href="http://www.lua.org">Lua</a> library
developed to complement the set of functions related to file
systems offered by the standard Lua distribution.</p>
<p>LuaFileSystem offers a portable way to access
the underlying directory structure and file attributes.</p>
<p>LuaFileSystem is free software and uses the same
<a href="license.html">license</a> as Lua 5.x (MIT).</p>
<h2><a name="status"></a>Status</h2>
<p>Current version is 1.8.0. It works with Lua 5.1, 5.2, 5.3 and 5.4, and it runs on various
flavors of Unix (including Linux, BSDs, macOS) and Windows.</p>
<h2><a name="download"></a>Download</h2>
<p>LuaFileSystem can be installed using <a href="https://luarocks.org">LuaRocks</a>:
<pre class="example">
$ luarocks install luafilesystem
</pre>
<p>Its source can be found at its <a href="http://github.com/keplerproject/luafilesystem">GitHub</a> page.</p>
<h2><a name="history"></a>History</h2>
<dl class="history">
<dt><strong>Version 1.8.0</strong> [22/Apr/2020]</dt>
<dd><ul>
<li>Lua 5.4 support</li>
<li>lfs.link and lfs.symlinkattributes now work on Windows</li>
<li>MACOSX_DEPLOYMENT_TARGET is configurable in the Makefile</li>
<li>Fallback to _POSIX_PATH_MAX when MAXPATHLEN is not avaliable</li>
<li>Fixed memory leak in case of realloc failure</li>
</ul></dd>
<dt><strong>Version 1.7.0</strong> [15/Sep/2017]</dt>
<dd><ul>
<li>symlinkattributes function now provides 'target' field, containing name of the file that the symlink points to.</li>
<li>attributes, symlinkattributes, touch, mkdir, and rmdir functions now return system-dependent error code as the third value on error.</li>
<li>Fixed detection of closed files for Lua 5.2+ in setmode, lock, and unlock functions.</li>
<li>Fixed various compiler warnings.</li>
</ul></dd>
<dt><strong>Version 1.6.3</strong> [15/Jan/2015]</dt>
<dd><ul>
<li>Lua 5.3 support.</li>
<li>Assorted bugfixes.</li>
</ul></dd>
<dt><strong>Version 1.6.2</strong> [??/Oct/2012]</dt>
<dd><ul>
<li>Full Lua 5.2 compatibility (with Lua 5.1 fallbacks)</li>
</ul></dd>
<dt><strong>Version 1.6.1</strong> [01/Oct/2012]</dt>
<dd><ul>
<li>fix build for Lua 5.2</li>
</ul></dd>
<dt><strong>Version 1.6.0</strong> [26/Sep/2012]</dt>
<dd><ul>
<li>getcwd fix for Android</li>
<li>support for Lua 5.2</li>
<li>add lfs.link</li>
<li>other bug fixes</li>
</ul></dd>
<dt><strong>Version 1.5.0</strong> [20/Oct/2009]</dt>
<dd><ul>
<li>Added explicit next and close methods to second return value of lfs.dir
(the directory object), for explicit iteration or explicit closing.</li>
<li>Added directory locking via lfs.lock_dir function (see the <a href="manual.html">manual</a>).</li>
</ul></dd>
<dt><strong>Version 1.4.2</strong> [03/Feb/2009]</dt>
<dd>
<ul>
<li>fixed bug
<code>lfs.attributes(filename, 'size')</code> overflow on files > 2 Gb again (bug report and patch by KUBO Takehiro).</li>
<li>fixed bug
Compile error on Solaris 10 (bug report and patch by Aaron B).</li>
<li>fixed compilation problems with Borland C.</li>
</ul>
</dd>
<dt><strong>Version 1.4.1</strong> [07/May/2008]</dt>
<dd>
<ul>
<li>documentation review</li>
<li>fixed Windows compilation issues</li>
<li>fixed bug in the Windows tests (patch by Shmuel Zeigerman)</li>
<li>fixed bug
<code>lfs.attributes(filename, 'size')</code> overflow on files > 2 Gb
</li>
</ul>
</dd>
<dt><strong>Version 1.4.0</strong> [13/Feb/2008]</dt>
<dd>
<ul>
<li>added function
<a href="manual.html#setmode"><code>lfs.setmode</code></a>
(works only in Windows systems).</li>
<li><a href="manual.html#attributes"><code>lfs.attributes</code></a>
raises an error if attribute does not exist</li>
</ul>
</dd>
<dt><strong>Version 1.3.0</strong> [26/Oct/2007]</dt>
<dd>
<ul>
<li>added function
<a href="manual.html#symlinkattributes"><code>lfs.symlinkattributes</code></a>
(works only in non Windows systems).</li>
</ul>
</dd>
<dt><strong>Version 1.2.1</strong> [08/May/2007]</dt>
<dd>
<ul>
<li>compatible only with Lua 5.1 (Lua 5.0 support was dropped)</li>
</ul>
</dd>
<dt><strong>Version 1.2</strong> [15/Mar/2006]</dt>
<dd>
<ul>
<li>added optional argument to
<a href="manual.html#attributes"><code>lfs.attributes</code></a></li>
<li>added function
<a href="manual.html#rmdir"><code>lfs.rmdir</code></a></li>
<li>bug correction on <a href="manual.html#dir"><code>lfs.dir</code></a></li>
</ul>
</dd>
<dt><strong>Version 1.1</strong> [30/May/2005]</dt>
<dd>
<ul>
<li>added function <a href="manual.html#touch"><code>lfs.touch</code></a>.</li>
</ul>
</dd>
<dt><strong>Version 1.0</strong> [21/Jan/2005]</dt>
<dd />
<dt><strong>Version 1.0 Beta</strong> [10/Nov/2004]</dt>
<dd />
</dl>
<h2><a name="credits"></a>Credits</h2>
<p>The LuaFileSystem library was originally designed and
implemented by Roberto Ierusalimschy, Andr&eacute; Carregal and
Tom&aacute;s Guisasola. It was then maintained by F&aacute;bio
Mascarenhas for several years and has since been maintained
by many contributors -- see the Git history for detailed credits.</p>
</div> <!-- id="content" -->
</div> <!-- id="main" -->
<div id="about">
<p><a href="http://validator.w3.org/check?uri=referer">Valid XHTML 1.0!</a></p>
</div> <!-- id="about" -->
</div> <!-- id="container" -->
</body>
</html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>LuaFileSystem</title>
<link rel="stylesheet" href="doc.css" type="text/css"/>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div id="container">
<div id="product">
<div id="product_logo">
<a href="http://keplerproject.github.io/luafilesystem">
<img alt="LuaFileSystem" src="luafilesystem.png"/>
</a>
</div>
<div id="product_name"><big><strong>LuaFileSystem</strong></big></div>
<div id="product_description">File System Library for the Lua Programming Language</div>
</div> <!-- id="product" -->
<div id="main">
<div id="navigation">
<h1>LuaFileSystem</h1>
<ul>
<li><a href="index.html">Home</a>
<ul>
<li><a href="index.html#overview">Overview</a></li>
<li><a href="index.html#status">Status</a></li>
<li><a href="index.html#download">Download</a></li>
<li><a href="index.html#history">History</a></li>
<li><a href="index.html#credits">Credits</a></li>
</ul>
</li>
<li><a href="manual.html">Manual</a>
<ul>
<li><a href="manual.html#introduction">Introduction</a></li>
<li><a href="manual.html#building">Building</a></li>
<li><a href="manual.html#installation">Installation</a></li>
<li><a href="manual.html#reference">Reference</a></li>
</ul>
</li>
<li><a href="examples.html">Examples</a></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Project</a>
<ul>
<li><a href="https://github.com/keplerproject/luafilesystem/issues">Bug Tracker</a></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Git</a></li>
</ul>
</li>
<li><strong>License</strong></li>
</ul>
</div> <!-- id="navigation" -->
<div id="content">
<h1>License</h1>
<p>The spirit of the license is that you are free to use
LuaFileSystem for any purpose at no cost without having to ask us.
The only requirement is that if you do use LuaFileSystem, then you
should give us credit by including the appropriate copyright notice
somewhere in your product or its documentation.</p>
<p>The LuaFileSystem library was originally designed and
implemented by Roberto Ierusalimschy, Andr&eacute; Carregal and
Tom&aacute;s Guisasola, and has since been maintained over the years
by many people -- see the Git history for detailed credits.
The implementation is not derived from any other licensed software.</p>
<hr/>
<p>Copyright &copy; 2003 - 2014 Kepler Project.</p>
<p>Copyright &copy; 2014 - 2022 The LuaFileSystem authors.</p>
<p>Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use, copy,
modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:</p>
<p>The above copyright notice and this permission notice shall be
included in all copies or substantial portions of the Software.</p>
<p>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.</p>
</div> <!-- id="content" -->
</div> <!-- id="main" -->
<div id="about">
<p><a href="http://validator.w3.org/check?uri=referer">Valid XHTML 1.0!</a></p>
</div><!-- id="about" -->
</div><!-- id="container" -->
</body>
</html>

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<title>LuaFileSystem</title>
<link rel="stylesheet" href="doc.css" type="text/css"/>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head>
<body>
<div id="container">
<div id="product">
<div id="product_logo">
<a href="http://keplerproject.github.io/luafilesystem">
<img alt="LuaFileSystem" src="luafilesystem.png"/>
</a>
</div>
<div id="product_name"><big><strong>LuaFileSystem</strong></big></div>
<div id="product_description">File System Library for the Lua Programming Language</div>
</div> <!-- id="product" -->
<div id="main">
<div id="navigation">
<h1>LuaFileSystem</h1>
<ul>
<li><a href="index.html">Home</a>
<ul>
<li><a href="index.html#overview">Overview</a></li>
<li><a href="index.html#status">Status</a></li>
<li><a href="index.html#download">Download</a></li>
<li><a href="index.html#history">History</a></li>
<li><a href="index.html#credits">Credits</a></li>
</ul>
</li>
<li><strong>Manual</strong>
<ul>
<li><a href="manual.html#introduction">Introduction</a></li>
<li><a href="manual.html#building">Building</a></li>
<li><a href="manual.html#installation">Installation</a></li>
<li><a href="manual.html#reference">Reference</a></li>
</ul>
</li>
<li><a href="examples.html">Examples</a></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Project</a>
<ul>
<li><a href="https://github.com/keplerproject/luafilesystem/issues">Bug Tracker</a></li>
<li><a href="https://github.com/keplerproject/luafilesystem">Git</a></li>
</ul>
</li>
<li><a href="license.html">License</a></li>
</ul>
</div> <!-- id="navigation" -->
<div id="content">
<h2><a name="introduction"></a>Introduction</h2>
<p>LuaFileSystem is a <a href="http://www.lua.org">Lua</a> library
developed to complement the set of functions related to file
systems offered by the standard Lua distribution.</p>
<p>LuaFileSystem offers a portable way to access
the underlying directory structure and file attributes.</p>
<h2><a name="building"></a>Building</h2>
<p>
LuaFileSystem should be built with Lua 5.1 so the language library
and header files for the target version must be installed properly.
</p>
<p>
LuaFileSystem offers a Makefile and a separate configuration file,
<code>config</code>,
which should be edited to suit your installation before running
<code>make</code>.
The file has some definitions like paths to the external libraries,
compiler options and the like.
</p>
<p>On Windows, the C runtime used to compile LuaFileSystem must be the same
runtime that Lua uses, or some LuaFileSystem functions will not work.</p>
<h2><a name="installation"></a>Installation</h2>
<p>The easiest way to install LuaFileSystem is to use LuaRocks:</p>
<pre class="example">
luarocks install luafilesystem
</pre>
<p>If you prefer to install LuaFileSystem manually, the compiled binary should be copied to a directory in your
<a href="http://www.lua.org/manual/5.1/manual.html#pdf-package.cpath">C path</a>.</p>
<h2><a name="reference"></a>Reference</h2>
<p>
LuaFileSystem offers the following functions:
</p>
<dl class="reference">
<dt><a name="attributes"></a><strong><code>lfs.attributes (filepath [, request_name | result_table])</code></strong></dt>
<dd>Returns a table with the file attributes corresponding to
<code>filepath</code> (or <code>nil</code> followed by an error message and a system-dependent error code
in case of error).
If the second optional argument is given and is a string, then only the value of the
named attribute is returned (this use is equivalent to
<code>lfs.attributes(filepath)[request_name]</code>, but the table is not created
and only one attribute is retrieved from the O.S.).
if a table is passed as the second argument, it (<code>result_table</code>) is filled with attributes and returned instead of a new table.
The attributes are described as follows;
attribute <code>mode</code> is a string, all the others are numbers,
and the time related attributes use the same time reference of
<a href="http://www.lua.org/manual/5.1/manual.html#pdf-os.time"><code>os.time</code></a>:
<dl>
<dt><strong><code>dev</code></strong></dt>
<dd>on Unix systems, this represents the device that the inode resides on. On Windows systems,
represents the drive number of the disk containing the file</dd>
<dt><strong><code>ino</code></strong></dt>
<dd>on Unix systems, this represents the inode number. On Windows systems this has no meaning</dd>
<dt><strong><code>mode</code></strong></dt>
<dd>string representing the associated protection mode (the values could be
<code>file</code>, <code>directory</code>, <code>link</code>, <code>socket</code>,
<code>named pipe</code>, <code>char device</code>, <code>block device</code> or
<code>other</code>)</dd>
<dt><strong><code>nlink</code></strong></dt>
<dd>number of hard links to the file</dd>
<dt><strong><code>uid</code></strong></dt>
<dd>user-id of owner (Unix only, always 0 on Windows)</dd>
<dt><strong><code>gid</code></strong></dt>
<dd>group-id of owner (Unix only, always 0 on Windows)</dd>
<dt><strong><code>rdev</code></strong></dt>
<dd>on Unix systems, represents the device type, for special file inodes.
On Windows systems represents the same as <code>dev</code></dd>
<dt><strong><code>access</code></strong></dt>
<dd>time of last access</dd>
<dt><strong><code>modification</code></strong></dt>
<dd>time of last data modification</dd>
<dt><strong><code>change</code></strong></dt>
<dd>time of last file status change</dd>
<dt><strong><code>size</code></strong></dt>
<dd>file size, in bytes</dd>
<dt><strong><code>permissions</code></strong></dt>
<dd>file permissions string</dd>
<dt><strong><code>blocks</code></strong></dt>
<dd>block allocated for file; (Unix only)</dd>
<dt><strong><code>blksize</code></strong></dt>
<dd>optimal file system I/O blocksize; (Unix only)</dd>
</dl>
This function uses <code>stat</code> internally thus if the given
<code>filepath</code> is a symbolic link, it is followed (if it points to
another link the chain is followed recursively) and the information
is about the file it refers to.
To obtain information about the link itself, see function
<a href="#symlinkattributes">lfs.symlinkattributes</a>.
</dd>
<dt><a name="chdir"></a><strong><code>lfs.chdir (path)</code></strong></dt>
<dd>Changes the current working directory to the given
<code>path</code>.<br />
Returns <code>true</code> in case of success or <code>nil</code> plus an
error string.</dd>
<dt><a name="lock_dir"></a><strong><code>lfs.lock_dir(path, [seconds_stale])</code></strong></dt>
<dd>Creates a lockfile (called lockfile.lfs) in <code>path</code> if it does not
exist and returns the lock. If the lock already exists checks if
it's stale, using the second parameter (default for the second
parameter is <code>INT_MAX</code>, which in practice means the lock will never
be stale. To free the the lock call <code>lock:free()</code>. <br/>
In case of any errors it returns nil and the error message. In
particular, if the lock exists and is not stale it returns the
"File exists" message.</dd>
<dt><a name="currentdir"></a><strong><code>lfs.currentdir ()</code></strong></dt>
<dd>Returns a string with the current working directory or <code>nil</code>
plus an error string.</dd>
<dt><a name="dir"></a><strong><code>iter, dir_obj = lfs.dir (path)</code></strong></dt>
<dd>
Lua iterator over the entries of a given directory.
Each time the iterator is called with <code>dir_obj</code> it returns a directory entry's name as a string, or
<code>nil</code> if there are no more entries. You can also iterate by calling <code>dir_obj:next()</code>, and
explicitly close the directory before the iteration finished with <code>dir_obj:close()</code>.
Raises an error if <code>path</code> is not a directory.
</dd>
<dt><a name="lock"></a><strong><code>lfs.lock (filehandle, mode[, start[, length]])</code></strong></dt>
<dd>Locks a file or a part of it. This function works on <em>open files</em>; the
file handle should be specified as the first argument.
The string <code>mode</code> could be either
<code>r</code> (for a read/shared lock) or <code>w</code> (for a
write/exclusive lock). The optional arguments <code>start</code>
and <code>length</code> can be used to specify a starting point and
its length; both should be numbers.<br />
Returns <code>true</code> if the operation was successful; in
case of error, it returns <code>nil</code> plus an error string.
</dd>
<dt><a name="link"></a><strong><code>lfs.link (old, new[, symlink])</code></strong></dt>
<dd>Creates a link. The first argument is the object to link to
and the second is the name of the link. If the optional third
argument is true, the link will by a symbolic link (by default, a
hard link is created).
</dd>
<dt><a name="mkdir"></a><strong><code>lfs.mkdir (dirname)</code></strong></dt>
<dd>Creates a new directory. The argument is the name of the new
directory.<br />
Returns <code>true</code> in case of success or <code>nil</code>, an error message and
a system-dependent error code in case of error.
</dd>
<dt><a name="rmdir"></a><strong><code>lfs.rmdir (dirname)</code></strong></dt>
<dd>Removes an existing directory. The argument is the name of the directory.<br />
Returns <code>true</code> in case of success or <code>nil</code>, an error message and
a system-dependent error code in case of error.
<dt><a name="setmode"></a><strong><code>lfs.setmode (file, mode)</code></strong></dt>
<dd>Sets the writing mode for a file. The mode string can be either <code>"binary"</code> or <code>"text"</code>.
Returns <code>true</code> followed the previous mode string for the file, or
<code>nil</code> followed by an error string in case of errors.
On non-Windows platforms, where the two modes are identical,
setting the mode has no effect, and the mode is always returned as <code>binary</code>.
</dd>
<dt><a name="symlinkattributes"></a><strong><code>lfs.symlinkattributes (filepath [, request_name])</code></strong></dt>
<dd>Identical to <a href="#attributes">lfs.attributes</a> except that
it obtains information about the link itself (not the file it refers to).
It also adds a <strong><code>target</code></strong> field, containing
the file name that the symlink points to.
On Windows this function does not yet support links, and is identical to
<code>lfs.attributes</code>.
</dd>
<dt><a name="touch"></a><strong><code>lfs.touch (filepath [, atime [, mtime]])</code></strong></dt>
<dd>Set access and modification times of a file. This function is
a bind to <code>utime</code> function. The first argument is the
filename, the second argument (<code>atime</code>) is the access time,
and the third argument (<code>mtime</code>) is the modification time.
Both times are provided in seconds (which should be generated with
Lua standard function <code>os.time</code>).
If the modification time is omitted, the access time provided is used;
if both times are omitted, the current time is used.<br />
Returns <code>true</code> in case of success or <code>nil</code>, an error message and
a system-dependent error code in case of error.
</dd>
<dt><a name="unlock"></a><strong><code>lfs.unlock (filehandle[, start[, length]])</code></strong></dt>
<dd>Unlocks a file or a part of it. This function works on
<em>open files</em>; the file handle should be specified as the first
argument. The optional arguments <code>start</code> and
<code>length</code> can be used to specify a starting point and its
length; both should be numbers.<br />
Returns <code>true</code> if the operation was successful;
in case of error, it returns <code>nil</code> plus an error string.
</dd>
</dl>
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