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<h1>Module <a href="type_OptParse.Formatter.html">OptParse.Formatter</a></h1>
<pre><span id="MODULEFormatter"><span class="keyword">module</span> Formatter</span>: <code class="code">sig</code> <a href="OptParse.Formatter.html">..</a> <code class="code">end</code></pre><div class="info module top">
<div class="info-desc">
<p>This module contains the types and functions for implementing
custom usage message formatters.</p>
</div>
</div>
<hr width="100%">
<pre><code><span id="TYPEt"><span class="keyword">type</span> <code class="type"></code>t</span> = {</code></pre><table class="typetable">
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.indent">indent</span> : <code class="type">unit -> unit</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Increase the indentation level.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.dedent">dedent</span> : <code class="type">unit -> unit</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Decrease the indentation level.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.format_usage">format_usage</span> : <code class="type">string -> string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format usage string into style of this formatter.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.format_heading">format_heading</span> : <code class="type">string -> string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format heading into style of this formatter.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.format_description">format_description</span> : <code class="type">string -> string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format description into style of this formatter.</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr>
<tr>
<td align="left" valign="top" >
<code> </code></td>
<td align="left" valign="top" >
<code><span id="TYPEELTt.format_option">format_option</span> : <code class="type">char list * string list -> string list -> string option -> string</code>;</code></td>
<td class="typefieldcomment" align="left" valign="top" ><code>(*</code></td><td class="typefieldcomment" align="left" valign="top" ><div class="info ">
<div class="info-desc">
<p>Format option into style of this formatter (see explanation below).</p>
</div>
</div>
</td><td class="typefieldcomment" align="left" valign="bottom" ><code>*)</code></td>
</tr></table>
}
<p>This is the type of a formatter. The <code class="code">format_option</code> has
signature <code class="code">format_option (snames,lnames) metavars help</code>, where
<code class="code">snames</code> is a list of the short option names, <code class="code">lnames</code> is a
list of the long option names, <code class="code">metavars</code> is a list of the
metavars the option takes as arguments, and <code class="code">help</code> is the help
string supplied by the user.</p>
<h7 id="6_Standardformatters">Standard formatters</h7>
<pre><span id="VALindented_formatter"><span class="keyword">val</span> indented_formatter</span> : <code class="type">?level:int Stdlib.ref -><br> ?indent:int Stdlib.ref -><br> ?indent_increment:int -><br> ?max_help_position:int -><br> ?width:int -> ?short_first:bool -> unit -> <a href="OptParse.Formatter.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Create an "indented" formatter with the given options.</p>
</div>
</div>
<div class="param_info"><code class="code">level</code> : Reference to the current indentation level. Its
value reflects changes in indentation level.</div>
<div class="param_info"><code class="code">indent</code> : Reference to the current indentation amount. Its
value reflects changes in indentation level.</div>
<div class="param_info"><code class="code">indent_increment</code> : Number of columns to indent by when
more indentation is required.</div>
<div class="param_info"><code class="code">max_help_position</code> : Maximum starting column for the help
messages relating to each option.</div>
<div class="param_info"><code class="code">width</code> : Total with of the usage messages printed.</div>
<div class="param_info"><code class="code">short_first</code> : List all the short option names first?</div>
<pre><span id="VALtitled_formatter"><span class="keyword">val</span> titled_formatter</span> : <code class="type">?level:int Stdlib.ref -><br> ?indent:int Stdlib.ref -><br> ?indent_increment:int -><br> ?max_help_position:int -><br> ?width:int -> ?short_first:bool -> unit -> <a href="OptParse.Formatter.html#TYPEt">t</a></code></pre><div class="info ">
<div class="info-desc">
<p>Creates a titled formatter which is quite similar to the
indented formatter. See
<a href="OptParse.Formatter.html#VALindented_formatter"><code class="code">OptParse.Formatter.indented_formatter</code></a> for a description of
the options.</p>
</div>
</div>
<h7 id="6_Lowlevelformatting">Low-level formatting</h7>
<pre><span id="VALwrap"><span class="keyword">val</span> wrap</span> : <code class="type">?initial_indent:int -> ?subsequent_indent:int -> string -> int -> string list</code></pre><div class="info ">
<div class="info-desc">
<p><code class="code">wrap text width</code> reflows the given text paragraph into lines
of width at most <code class="code">width</code> (lines may exceed this if the are
single words that exceed this limit).</p>
</div>
<ul class="info-attributes">
<li><b>Returns</b> a list of lines making up the reformatted paragraph.</li>
</ul>
</div>
<div class="param_info"><code class="code">initial_indent</code> : Indentation of the first line.</div>
<div class="param_info"><code class="code">subsequent_indent</code> : Indentation of the following lines.</div>
<pre><span id="VALfill"><span class="keyword">val</span> fill</span> : <code class="type">?initial_indent:int -> ?subsequent_indent:int -> string -> int -> string</code></pre><div class="info ">
<div class="info-desc">
<p>See <a href="OptParse.Formatter.html#VALwrap"><code class="code">OptParse.Formatter.wrap</code></a>.</p>
</div>
<ul class="info-attributes">
<li><b>Returns</b> a string containing the reformatted paragraph.</li>
</ul>
</div>
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