CII code 12)
<li><tt>\n</tt> - New-line/line-feed character (ASCII code 10)
<li><tt>\r</tt> - Carriage return character (ASCII code 13)
<li><tt>\t</tt> - Horizontal tab character (ASCII code 9)
</ul>

<p>
An ordinary character is just a single character with no other
significance, and matches that character.  A <tt>{</tt> followed by
something else than a digit is considered an ordinary character.
</p>


<h3>Back references</h3>
<a name="backref"></a>

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<tr><td>
<pr