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Add checked constructors to the Unicode iterators that need them.

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Update icu support code to use the new checking-constructors.
Update tests to check the full Unicode character range (as of Unicode V6).
Add minimal docs describing the iterators.

[SVN r73271]
This commit is contained in:
John Maddock
2011-07-21 10:01:09 +00:00
parent 03ef9626ba
commit d08bfeff25
89 changed files with 1426 additions and 1088 deletions
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18
doc/html/boost_regex/unicode.html
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@ -3,7 +3,7 @@
<meta http-equiv="Content-Type" content="text/html; charset=US-ASCII">
<title>Unicode and Boost.Regex</title>
<link rel="stylesheet" href="../../../../../doc/src/boostbook.css" type="text/css">
<meta name="generator" content="DocBook XSL Stylesheets V1.74.0">
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="../index.html" title="Boost.Regex">
<link rel="up" href="../index.html" title="Boost.Regex">
<link rel="prev" href="introduction_and_overview.html" title="Introduction and Overview">
@ -22,7 +22,7 @@
<div class="spirit-nav">
<a accesskey="p" href="introduction_and_overview.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../index.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="captures.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a>
</div>
<div class="section" lang="en">
<div class="section">
<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="boost_regex.unicode"></a><a class="link" href="unicode.html" title="Unicode and Boost.Regex">Unicode and Boost.Regex</a>
</h2></div></div></div>
@ -30,7 +30,7 @@
There are two ways to use Boost.Regex with Unicode strings:
</p>
<a name="boost_regex.unicode.rely_on_wchar_t"></a><h5>
<a name="id990200"></a>
<a name="boost_regex.unicode.rely_on_wchar_t-heading"></a>
<a class="link" href="unicode.html#boost_regex.unicode.rely_on_wchar_t">Rely on wchar_t</a>
</h5>
<p>
@ -40,23 +40,23 @@
<code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">iswlower</span></code> etc), then you can use <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">wregex</span></code>
to process Unicode. However, there are several disadvantages to this approach:
</p>
<div class="itemizedlist"><ul type="disc">
<li>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
It's not portable: there's no guarantee on the width of <code class="computeroutput"><span class="keyword">wchar_t</span></code>,
or even whether the runtime treats wide characters as Unicode at all, most
Windows compilers do so, but many Unix systems do not.
</li>
<li>
<li class="listitem">
There's no support for Unicode-specific character classes: <code class="computeroutput"><span class="special">[[:</span><span class="identifier">Nd</span><span class="special">:]]</span></code>, <code class="computeroutput"><span class="special">[[:</span><span class="identifier">Po</span><span class="special">:]]</span></code>
etc.
</li>
<li>
<li class="listitem">
You can only search strings that are encoded as sequences of wide characters,
it is not possible to search UTF-8, or even UTF-16 on many platforms.
</li>
</ul></div>
<a name="boost_regex.unicode.use_a_unicode_aware_regular_expression_type_"></a><h5>
<a name="id990328"></a>
<a name="boost_regex.unicode.use_a_unicode_aware_regular_expression_type_-heading"></a>
<a class="link" href="unicode.html#boost_regex.unicode.use_a_unicode_aware_regular_expression_type_">Use
a Unicode Aware Regular Expression Type.</a>
</h5>
@ -71,7 +71,7 @@
</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 &#169; 1998 -2010 John Maddock<p>
<td align="right"><div class="copyright-footer">Copyright &#169; 1998-2010 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>