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<div class="sect1">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="section-storing-tools-in-files"></a>Storing tools in files</h2></div></div></div>
<p>
It is possible to create tools without using the <span class="guilabel">Preferences</span> dialog,
they can be stored in files in <code class="filename">tools</code> subfolder of the <span class="application">medit</span> data
folders (or <code class="filename">tools-context</code> for tools which appear in the document context
menu). In particular, on Unix systems you can place files into <code class="filename">$HOME/.local/share/medit-1/tools/</code> folder.
</p>
<p>
Names of the files in the <code class="filename">tools</code> folder are used as their menu item
labels, after stripping first three characters, so you can use trhee-character
prefix to affect the order of the menu items, e.g. you can have <code class="filename">00-Do Something</code>,
<code class="filename">01-Another tool</code> files to have them in that order in the menu. The files
may be of three types:
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">files with extension "<code class="filename">.py</code>", they will be used
as Python scripts;</li>
<li class="listitem">files with extension "<code class="filename">.lua</code>", they will be used
as Lua scripts;</li>
<li class="listitem">executable files, they will be executed in the same way
as shell commands.</li>
</ul></div>
<p>
</p>
<p>
Note that files with <code class="filename">.py</code> and <code class="filename">.lua</code> extensions will be
executed inside <span class="application">medit</span> process; if you want to use them as regular scripts, then just remove the
extension.
</p>
<p>
To set parameters for a tool, place them on the first or the second line of the file in
the following format:
</p>
<pre class="programlisting">
!! <em class="parameter"><code>key</code></em>=<em class="parameter"><code>value</code></em>; <em class="parameter"><code>key</code></em>=<em class="parameter"><code>value</code></em>; ... !!
</pre>
<p>
</p>
<p>
<em class="parameter"><code>key</code></em> may be one of the following:
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><code class="code">position</code></span></p></td>
<td>it can be <code class="code">start</code> or <code class="code">end</code>, and it defines whether the menu item
will be located at the start or at the end of the menu.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">id</code></span></p></td>
<td>the tool identificator.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">name</code></span></p></td>
<td>the tool name, i.e. the label used in the menu item. Overrides the file name.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">accel</code></span></p></td>
<td>default keyboard accelerator used to invoke this tool.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">menu</code></span></p></td>
<td>the menu to place this tool into. By default tools are located in the <span class="guimenu">Tools</span> menu,
but they can be as well put into any other menu.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">langs</code></span></p></td>
<td>comma-separated list of languages for which this tool will be enabled.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">file-filter</code></span></p></td>
<td>defines for which files this tool will be enabled. The value has the same format as
in the <span class="guilabel">Preferences</span> dialog.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">options</code></span></p></td>
<td>this corresponds to Requires and Save controls in the <span class="guilabel">Preferences</span> dialog. It is a
comma-separated list of the following:
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><code class="code">need-doc</code></span></p></td>
<td>tool will be enabled only if there is an open document.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">need-file</code></span></p></td>
<td>tool will be enabled only if current document is saved on disk (i.e. it is not "Untitled").</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">need-save</code></span></p></td>
<td>current document will be automatically saved before the command is executed.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">need-save-all</code></span></p></td>
<td>all open documents will be automatically saved before the command is executed.</td>
</tr>
</tbody>
</table></div>
</td>
</tr>
</tbody>
</table></div>
<p>
</p>
<p>
In addition to these, you can set input and output options for executable files (see <a class="xref" href="ch03s03.html" title="Shell scripts">the section called “Shell scripts”</a>
for the meaning of these options):
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><code class="code">input</code></span></p></td>
<td>
<code class="code">none</code>, <code class="code">lines</code>, <code class="code">selection</code>, or <code class="code">doc</code>.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">output</code></span></p></td>
<td>
<code class="code">none</code>, <code class="code">async</code>, <code class="code">pane</code>, <code class="code">insert</code>, or <code class="code">new-doc</code>.</td>
</tr>
<tr>
<td><p><span class="term"><code class="code">filter</code></span></p></td>
<td>output filter name.</td>
</tr>
</tbody>
</table></div>
<p>
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