Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is an old version of boost. Click here for the latest version's documentation home page.

Boost.Regex

Unicode Regular Expressions.


There are two ways to use Boost.Regex with Unicode strings:

Rely on wchar_t

If your platform's wchar_t type can hold Unicode strings, and your platform's C/C++ runtime correctly handles wide character constants (when passed to std::iswspace std::iswlower etc), then you can use boost::wregex to process Unicode.  However, there are several disadvantages to this approach:

Use a Unicode Aware Regular Expression Type.

If you have the ICU library, then Boost.Regex can be configured to make use of it, and provide a distinct regular expression type (boost::u32regex), that supports both Unicode specific character properties, and the searching of text that is encoded in either UTF-8, UTF-16, or UTF-32.  See: ICU string class support.


Revised  04 Jan 2005 

Copyright John Maddock 2005

Use, modification and distribution are subject to the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)