<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>POSIX Symbolic Names</title>
<link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<link rel="home" href="../../../index.html" title="Boost.Regex">
<link rel="up" href="../collating_names.html" title="Collating Names">
<link rel="prev" href="digraphs.html" title="Digraphs">
<link rel="next" href="named_unicode.html" title="Named Unicode Characters">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table cellpadding="2" width="100%"><tr>
<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../boost.png"></td>
<td align="center"><a href="../../../../../../../index.html">Home</a></td>
<td align="center"><a href="../../../../../../../libs/libraries.htm">Libraries</a></td>
<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td>
<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td>
<td align="center"><a href="../../../../../../../more/index.htm">More</a></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="digraphs.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../collating_names.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="named_unicode.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="titlepage"><div><div><h4 class="title">
<a name="boost_regex.syntax.collating_names.posix_symbolic_names"></a><a class="link" href="posix_symbolic_names.html" title="POSIX Symbolic Names">
POSIX Symbolic Names</a>
</h4></div></div></div>
<p>
The following symbolic names are recognised as valid collating element
names, in addition to any single character, this allows you to write for
example:
</p>
<pre class="programlisting">[[.left-square-bracket.][.right-square-bracket.]]</pre>
<p>
if you wanted to match either "[" or "]".
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
Name
</p>
</th>
<th>
<p>
Character
</p>
</th>
</tr></thead>
<tbody>
<tr>
<td>
<p>
NUL
</p>
</td>
<td>
<p>
\x00
</p>
</td>
</tr>
<tr>
<td>
<p>
SOH
</p>
</td>
<td>
<p>
\x01
</p>
</td>
</tr>
<tr>
<td>
<p>
STX
</p>
</td>
<td>
<p>
\x02
</p>
</td>
</tr>
<tr>
<td>
<p>
ETX
</p>
</td>
<td>
<p>
\x03
</p>
</td>
</tr>
<tr>
<td>
<p>
EOT
</p>
</td>
<td>
<p>
\x04
</p>
</td>
</tr>
<tr>
<td>
<p>
ENQ
</p>
</td>
<td>
<p>
\x05
</p>
</td>
</tr>
<tr>
<td>
<p>
ACK
</p>
</td>
<td>
<p>
\x06
</p>
</td>
</tr>
<tr>
<td>
<p>
alert
</p>
</td>
<td>
<p>
\x07
</p>
</td>
</tr>
<tr>
<td>
<p>
backspace
</p>
</td>
<td>
<p>
\x08
</p>
</td>
</tr>
<tr>
<td>
<p>
tab
</p>
</td>
<td>
<p>
\t
</p>
</td>
</tr>
<tr>
<td>
<p>
newline
</p>
</td>
<td>
<p>
\n
</p>
</td>
</tr>
<tr>
<td>
<p>
vertical-tab
</p>
</td>
<td>
<p>
\v
</p>
</td>
</tr>
<tr>
<td>
<p>
form-feed
</p>
</td>
<td>
<p>
\f
</p>
</td>
</tr>
<tr>
<td>
<p>
carriage-return
</p>
</td>
<td>
<p>
\r
</p>
</td>
</tr>
<tr>
<td>
<p>
SO
</p>
</td>
<td>
<p>
\xE
</p>
</td>
</tr>
<tr>
<td>
<p>
SI
</p>
</td>
<td>
<p>
\xF
</p>
</td>
</tr>
<tr>
<td>
<p>
DLE
</p>
</td>
<td>
<p>
\x10
</p>
</td>
</tr>
<tr>
<td>
<p>
DC1
</p>
</td>
<td>
<p>
\x11
</p>
</td>
</tr>
<tr>
<td>
<p>
DC2
</p>
</td>
<td>
<p>
\x12
</p>
</td>
</tr>
<tr>
<td>
<p>
DC3
</p>
</td>
<td>
<p>
\x13
</p>
</td>
</tr>
<tr>
<td>
<p>
DC4
</p>
</td>
<td>
<p>
\x14
</p>
</td>
</tr>
<tr>
<td>
<p>
NAK
</p>
</td>
<td>
<p>
\x15
</p>
</td>
</tr>
<tr>
<td>
<p>
SYN
</p>
</td>
<td>
<p>
\x16
</p>
</td>
</tr>
<tr>
<td>
<p>
ETB
</p>
</td>
<td>
<p>
\x17
</p>
</td>
</tr>
<tr>
<td>
<p>
CAN
</p>
</td>
<td>
<p>
\x18
</p>
</td>
</tr>
<tr>
<td>
<p>
EM
</p>
</td>
<td>
<p>
\x19
</p>
</td>
</tr>
<tr>
<td>
<p>
SUB
</p>
</td>
<td>
<p>
\x1A
</p>
</td>
</tr>
<tr>
<td>
<p>
ESC
</p>
</td>
<td>
<p>
\x1B
</p>
</td>
</tr>
<tr>
<td>
<p>
IS4
</p>
</td>
<td>
<p>
\x1C
</p>
</td>
</tr>
<tr>
<td>
<p>
IS3
</p>
</td>
<td>
<p>
\x1D
</p>
</td>
</tr>
<tr>
<td>
<p>
IS2
</p>
</td>
<td>
<p>
\x1E
</p>
</td>
</tr>
<tr>
<td>
<p>
IS1
</p>
</td>
<td>
<p>
\x1F
</p>
</td>
</tr>
<tr>
<td>
<p>
space
</p>
</td>
<td>
<p>
\x20
</p>
</td>
</tr>
<tr>
<td>
<p>
exclamation-mark
</p>
</td>
<td>
<p>
!
</p>
</td>
</tr>
<tr>
<td>
<p>
quotation-mark
</p>
</td>
<td>
<p>
"
</p>
</td>
</tr>
<tr>
<td>
<p>
number-sign
</p>
</td>
<td>
<p>
#
</p>
</td>
</tr>
<tr>
<td>
<p>
dollar-sign
</p>
</td>
<td>
<p>
$
</p>
</td>
</tr>
<tr>
<td>
<p>
percent-sign
</p>
</td>
<td>
<p>
%
</p>
</td>
</tr>
<tr>
<td>
<p>
ampersand
</p>
</td>
<td>
<p>
&
</p>
</td>
</tr>
<tr>
<td>
<p>
apostrophe
</p>
</td>
<td>
<p>
'
</p>
</td>
</tr>
<tr>
<td>
<p>
left-parenthesis
</p>
</td>
<td>
<p>
(
</p>
</td>
</tr>
<tr>
<td>
<p>
right-parenthesis
</p>
</td>
<td>
<p>
)
</p>
</td>
</tr>
<tr>
<td>
<p>
asterisk
</p>
</td>
<td>
<p>
*
</p>
</td>
</tr>
<tr>
<td>
<p>
plus-sign
</p>
</td>
<td>
<p>
+
</p>
</td>
</tr>
<tr>
<td>
<p>
comma
</p>
</td>
<td>
<p>
,
</p>
</td>
</tr>
<tr>
<td>
<p>
hyphen
</p>
</td>
<td>
<p>
-
</p>
</td>
</tr>
<tr>
<td>
<p>
period
</p>
</td>
<td>
<p>
.
</p>
</td>
</tr>
<tr>
<td>
<p>
slash
</p>
</td>
<td>
<p>
/
</p>
</td>
</tr>
<tr>
<td>
<p>
zero
</p>
</td>
<td>
<p>
0
</p>
</td>
</tr>
<tr>
<td>
<p>
one
</p>
</td>
<td>
<p>
1
</p>
</td>
</tr>
<tr>
<td>
<p>
two
</p>
</td>
<td>
<p>
2
</p>
</td>
</tr>
<tr>
<td>
<p>
three
</p>
</td>
<td>
<p>
3
</p>
</td>
</tr>
<tr>
<td>
<p>
four
</p>
</td>
<td>
<p>
4
</p>
</td>
</tr>
<tr>
<td>
<p>
five
</p>
</td>
<td>
<p>
5
</p>
</td>
</tr>
<tr>
<td>
<p>
six
</p>
</td>
<td>
<p>
6
</p>
</td>
</tr>
<tr>
<td>
<p>
seven
</p>
</td>
<td>
<p>
7
</p>
</td>
</tr>
<tr>
<td>
<p>
eight
</p>
</td>
<td>
<p>
8
</p>
</td>
</tr>
<tr>
<td>
<p>
nine
</p>
</td>
<td>
<p>
9
</p>
</td>
</tr>
<tr>
<td>
<p>
colon
</p>
</td>
<td>
<p>
:
</p>
</td>
</tr>
<tr>
<td>
<p>
semicolon
</p>
</td>
<td>
<p>
;
</p>
</td>
</tr>
<tr>
<td>
<p>
less-than-sign
</p>
</td>
<td>
<p>
<
</p>
</td>
</tr>
<tr>
<td>
<p>
equals-sign
</p>
</td>
<td>
<p>
=
</p>
</td>
</tr>
<tr>
<td>
<p>
greater-than-sign
</p>
</td>
<td>
<p>
>
</p>
</td>
</tr>
<tr>
<td>
<p>
question-mark
</p>
</td>
<td>
<p>
?
</p>
</td>
</tr>
<tr>
<td>
<p>
commercial-at
</p>
</td>
<td>
<p>
@
</p>
</td>
</tr>
<tr>
<td>
<p>
left-square-bracket
</p>
</td>
<td>
<p>
[
</p>
</td>
</tr>
<tr>
<td>
<p>
backslash
</p>
</td>
<td>
<p>
\
</p>
</td>
</tr>
<tr>
<td>
<p>
right-square-bracket
</p>
</td>
<td>
<p>
]
</p>
</td>
</tr>
<tr>
<td>
<p>
circumflex
</p>
</td>
<td>
<p>
~
</p>
</td>
</tr>
<tr>
<td>
<p>
underscore
</p>
</td>
<td>
<p>
_
</p>
</td>
</tr>
<tr>
<td>
<p>
grave-accent
</p>
</td>
<td>
<p>
`
</p>
</td>
</tr>
<tr>
<td>
<p>
left-curly-bracket
</p>
</td>
<td>
<p>
{
</p>
</td>
</tr>
<tr>
<td>
<p>
vertical-line
</p>
</td>
<td>
<p>
|
</p>
</td>
</tr>
<tr>
<td>
<p>
right-curly-bracket
</p>
</td>
<td>
<p>
}
</p>
</td>
</tr>
<tr>
<td>
<p>
tilde
</p>
</td>
<td>
<p>
~
</p>
</td>
</tr>
<tr>
<td>
<p>
DEL
</p>
</td>
<td>
<p>
\x7F
</p>
</td>
</tr>
</tbody>
</table></div>
</div>
<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
<td align="left"></td>
<td align="right"><div class="copyright-footer">Copyright © 1998 -2007 John Maddock<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
</p>
</div></td>
</tr></table>
<hr>
<div class="spirit-nav">
<a accesskey="p" href="digraphs.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../collating_names.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="named_unicode.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
</body>
</html>
