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<div class="subsection-level-extent" id="Special-Fonts">
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<h4 class="subsection" id="Special-Fonts-1">5.19.6 Special Fonts</h4>
<a class="index-entry-id" id="index-special-fonts-1"></a>
<a class="index-entry-id" id="index-fonts_002c-special"></a>
<p>Special fonts are those that <code class="code">gtroff</code> searches when it cannot find
the requested glyph in the current font. The Symbol font is usually a
special font.
</p>
<p><code class="code">gtroff</code> provides the following two requests to add more special
fonts. See <a class="xref" href="Using-Symbols.html">Using Symbols</a>, for a detailed description of the glyph
searching mechanism in <code class="code">gtroff</code>.
</p>
<p>Usually, only non-TTY devices have special fonts.
</p>
<dl class="first-deffn">
<dt class="deffn" id="index-_002especial"><span class="category-def">Request: </span><span><strong class="def-name"><code class="t">.special</code></strong> <var class="def-var-arguments">[<span class="r"><i class="slanted">s1</i></span> <span class="r"><i class="slanted">s2</i></span> …]</var><a class="copiable-link" href='#index-_002especial'> ¶</a></span></dt>
<dd><a class="index-entry-id" id="index-special-2"></a>
</dd><dt class="deffnx def-cmd-deffn" id="index-_002efspecial"><span class="category-def">Request: </span><span><strong class="def-name"><code class="t">.fspecial</code></strong> <var class="def-var-arguments">f [<span class="r"><i class="slanted">s1</i></span> <span class="r"><i class="slanted">s2</i></span> …]</var><a class="copiable-link" href='#index-_002efspecial'> ¶</a></span></dt>
<dd><a class="index-entry-id" id="index-fspecial"></a>
<a class="index-entry-id" id="index-fonts-1"></a>
<a class="index-entry-id" id="index-DESC-4"></a>
<p>Use the <code class="code">special</code> request to define special fonts. Initially, this
list is empty.
</p>
<p>Use the <code class="code">fspecial</code> request to designate special fonts only when
font <var class="var">f</var> is active. Initially, this list is empty.
</p>
<p>Previous calls to <code class="code">special</code> or <code class="code">fspecial</code> are overwritten;
without arguments, the particular list of special fonts is set to empty.
Special fonts are searched in the order they appear as arguments.
</p>
<p>All fonts that appear in a call to <code class="code">special</code> or <code class="code">fspecial</code>
are loaded.
</p>
<p>See <a class="xref" href="Using-Symbols.html">Using Symbols</a>, for the exact search order of glyphs.
</p></dd></dl>
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