[/
 / Copyright (c) 2008 Eric Niebler
 /
 / Distributed under 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)
 /]

[section Appendix 1: History]

[h2 Version 2.1.0 6/12/2008]

New Features:

* `skip()` primitive for static regexes, which allows you to specify parts of
  the input string to ignore during regex matching.
* Range-based `regex_replace()` algorithm interface.
* `regex_replace()` accepts formatter objects and formatter lambda expressions
  in addition to format strings.

Bugs Fixed:

* Semantic actions in look-aheads, look-behinds and independent sub-expressions
  execute eagerly instead of causing a crash.

[h2 Version 2.0.1 10/23/2007]

Bugs Fixed:

* `sub_match<>` constructor copies singular iterator causing debug assert.

[h2 Version 2.0.0, 10/12/2007]

New Features:

* Semantic actions
* Custom assertions
* Named captures
* Dynamic regex grammars
* Recursive dynamic regexes with [^(?R)] construct
* Support for searching non-character data
* Better errors for invalid static regexes
* Range-based regex algorithm interface
* `match_flag_type::format_perl`, `match_flag_type::format_sed`, and `match_flag_type::format_all`
* `operator+(std::string, sub_match<>)` and variants
* Version 2 regex traits get `tolower()` and `toupper()`

Bugs Fixed:

* Complementing single-character sets like `~(set='a')` works.

[h2 Version 1.0.2, April 27, 2007]

Bugs Fixed:

* Back-references greater than nine work as advertized.

This is the version that shipped as part of Boost 1.34.

[h2 Version 1.0.1, October 2, 2006]

Bugs Fixed:

* `match_results::position()` works for nested results.

[h2 Version 1.0.0, March 16, 2006]

Version 1.0!

[h2 Version 0.9.6, August 19, 2005]

The version reviewed for acceptance into Boost. The review began September 8,
2005. Xpressive was accepted into Boost on September 28, 2005.

[h2 Version 0.9.3, June 30, 2005]

New Features:

* TR1-style regex_traits interface
* Speed enhancements
* `syntax_option_type::ignore_white_space`

[h2 Version 0.9.0, September 2, 2004]

New Features:

* It sort of works.

[h2 Version 0.0.1, November 16, 2003]

Announcement of xpressive:
[@http://lists.boost.org/Archives/boost/2003/11/56312.php]

[endsect]