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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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<h1>Penlight</h1>
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<li><a href="../index.html">Index</a></li>
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<h2>Contents</h2>
<ul>
<li><a href="#Functions">Functions</a></li>
</ul>
<h2>Libraries</h2>
<ul class="nowrap">
<li><a href="../libraries/pl.html">pl</a></li>
<li><a href="../libraries/pl.app.html">pl.app</a></li>
<li><a href="../libraries/pl.array2d.html">pl.array2d</a></li>
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<li><strong>pl.config</strong></li>
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<h2>Manual</h2>
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<li><a href="../manual/01-introduction.md.html">Introduction</a></li>
<li><a href="../manual/02-arrays.md.html">Tables and Arrays</a></li>
<li><a href="../manual/03-strings.md.html">Strings. Higher-level operations on strings.</a></li>
<li><a href="../manual/04-paths.md.html">Paths and Directories</a></li>
<li><a href="../manual/05-dates.md.html">Date and Time</a></li>
<li><a href="../manual/06-data.md.html">Data</a></li>
<li><a href="../manual/07-functional.md.html">Functional Programming</a></li>
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<li><a href="../manual/09-discussion.md.html">Technical Choices</a></li>
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<h2>Examples</h2>
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<li><a href="../examples/seesubst.lua.html">seesubst.lua</a></li>
<li><a href="../examples/sipscan.lua.html">sipscan.lua</a></li>
<li><a href="../examples/symbols.lua.html">symbols.lua</a></li>
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<li><a href="../examples/test-listcallbacks.lua.html">test-listcallbacks.lua</a></li>
<li><a href="../examples/test-pretty.lua.html">test-pretty.lua</a></li>
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<li><a href="../examples/testconfig.lua.html">testconfig.lua</a></li>
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<li><a href="../examples/which.lua.html">which.lua</a></li>
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<div id="content">
<h1>Module <code>pl.config</code></h1>
<p>Reads configuration files into a Lua table.</p>
<p>
<p> Understands INI files, classic Unix config files, and simple
delimited columns of values. See <a href="../manual/06-data.md.html#Reading_Configuration_Files">the Guide</a></p>
<pre>
# test.config
# Read timeout <span class="keyword">in</span> seconds
read.timeout=<span class="number">10</span>
# Write timeout <span class="keyword">in</span> seconds
write.timeout=<span class="number">5</span>
#acceptable ports
ports = <span class="number">1002</span>,<span class="number">1003</span>,<span class="number">1004</span>
<span class="comment">-- readconfig.lua
</span><span class="keyword">local</span> config = <span class="global">require</span> <span class="string">'config'</span>
<span class="keyword">local</span> t = config.read <span class="string">'test.config'</span>
<span class="global">print</span>(pretty.write(t))
### output #####
{
ports = {
<span class="number">1002</span>,
<span class="number">1003</span>,
<span class="number">1004</span>
},
write_timeout = <span class="number">5</span>,
read_timeout = <span class="number">10</span>
}
</pre>
</p>
<h2><a href="#Functions">Functions</a></h2>
<table class="function_list">
<tr>
<td class="name" nowrap><a href="#lines">lines (file)</a></td>
<td class="summary">like io.lines(), but allows for lines to be continued with ''.</td>
</tr>
<tr>
<td class="name" nowrap><a href="#read">read (file[, cnfg])</a></td>
<td class="summary">read a configuration file into a table</td>
</tr>
</table>
<br/>
<br/>
<h2 class="section-header "><a name="Functions"></a>Functions</h2>
<dl class="function">
<dt>
<a name = "lines"></a>
<strong>lines (file)</strong>
</dt>
<dd>
like io.lines(), but allows for lines to be continued with ''.
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">file</span>
a file-like object (anything where read() returns the next line) or a filename.
Defaults to stardard input.
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
an iterator over the lines, or nil</li>
<li>
error 'not a file-like object' or 'file is nil'</li>
</ol>
</dd>
<dt>
<a name = "read"></a>
<strong>read (file[, cnfg])</strong>
</dt>
<dd>
read a configuration file into a table
<h3>Parameters:</h3>
<ul>
<li><span class="parameter">file</span>
either a file-like object or a string, which must be a filename
</li>
<li><span class="parameter">cnfg</span>
<span class="types"><span class="type">tab</span></span>
<p> a configuration table that may contain these fields:</p>
<ul>
<li><code>smart</code> try to deduce what kind of config file we have (default false)</li>
<li><code>variabilize</code> make names into valid Lua identifiers (default true)</li>
<li><code>convert_numbers</code> try to convert values into numbers (default true)</li>
<li><code>trim_space</code> ensure that there is no starting or trailing whitespace with values (default true)</li>
<li><code>trim_quotes</code> remove quotes from strings (default false)</li>
<li><code>list_delim</code> delimiter to use when separating columns (default ',')</li>
<li><code>keysep</code> separator between key and value pairs (default '=')</li>
</ul>
(<em>optional</em>)
</li>
</ul>
<h3>Returns:</h3>
<ol>
<li>
a table containing items, or <code>nil</code></li>
<li>
error message (same as <a href="../libraries/pl.config.html#lines">config.lines</a></li>
</ol>
</dd>
</dl>
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