rdoc version 2.2.0 has been released!

RDoc is an application that produces documentation for one or more Ruby source
files. RDoc includes the +rdoc+ and +ri+ tools for generating and displaying
online documentation.

At this point in time, RDoc 2.x is a work in progress and may incur further
API changes beyond what has been made to the RDoc 1.0.1. Command-line tools
are largely unaffected, but internal APIs may shift rapidly.

See RDoc for a description of RDoc's markup and basic use.

Changes:

### 2.2.0 / 2008-09-19
This version includes some significant enhancements to ri. See RI.txt for
documentation about ri.

* 5 Major Enhancements
* More extensive unit tests (special thanks to Chris Lowis for contributing
a test).
* Made ri twice as fast for the most common use case of displaying
information for a class or a fully-qualified method
(i.e., ri Array#flatten, after ri has created a cache the first time that
it runs).
* Made ri many times faster when searching for an unqualified method (i.e.,
ri read, again after the first such search has populated ri's cache)
* Changed ri to do regular expression searches for unqualified methods;
now, a regular expression for a method can be passed to ri on the
command-line.
* Added an interactive mode to ri (patch by Daniel Choi). Now, when ri
is given a -i argument, it will allow the user to disambiguate
unqualified methods if more than one is present and also will allow a
user to get information for a class' method.

* 8 Minor Enhancements
* RDoc now adds the package title to the web pages that it generates
for files and classes/modules, which helps them appear better in
search engine results.
* RDoc now automatically generates cross-reference links for classes and
methods specified relative to the global namespace (i.e., ::A::B::C#method).
* All built-in templates now output valid, strict XHTML.
* The documentation is slightly better organized (the markup details were
merged into the RDoc module's documentation).
* Improved rdoc's HTML generation speed by about 20% (on Windows, the
boost seems larger).
* Provided an ri command-line option to control its caching behavior.
* Improved RDoc's documentation. Added RI.txt to document ri.
* Allow HTML templates distributed as gems to be loaded with the -T option,
just like the standard templates in rdoc/generator/html (so an HTML
template lib/new_template.rb in a gem can be used with rdoc -T new_template)

* 25 Bug fixes:
* Fixed prototype detection in C parser. Can process ruby 1.8 C files
again.
* Fixed the main page for frameless template. Patch by Marcin Raczkowski.
* Fixed the main page for frame templates. Now, if no main page is
specified, RDoc will default to the README.
* Fixed missing stylesheet in generated chm. Patch by Gordon Thiesfeld.
* Fixed the parsing of module names starting with '::'. Patch by
Giuseppe Bilotta.
* Fixed a case where RDoc first would encounter Foo::Bar and then would
encounter class Foo. Previously, RDoc erroneously would have considered
that both a Foo class and a Foo module existed.
* Fix a clase where RDoc would not generate correct cross-reference links
to a class contained within a module of the same name (i.e. RDoc::RDoc)
* Prevented RDoc from trying to parse binary files, which would produce
garbage output.
* RDoc now correctly converts ' characters to apostrophes, opening single
quotes, and closing single quotes in most cases (smart single quotes).
* RDoc now correctly converts " characters to opening double quotes and
and closing double quotes in most cases (smart double quotes).
* (c) correctly is converted into the copyright symbol.
* '&' characters in text now correctly are translated to HTML character codes.
* Fixed missing stylesheet in generated chm. Patch by Gordon Thiesfeld.
* Fixed broken method links in the built-in templates.
* RDoc properly links to files and classes in the one page HTML template.
* The kilmer and hefss templates properly syntax highlight when inlining
source code.
* The kilmer and hefss template class pages properly display methods again.
* Fixed broken class, file, and method links in the frameless template.
* Fixed the clipping of source code in the html and frameless templates when
the source code cannot fit into the window; a scrollbar now will allow
all of the source code to be viewed.
* Fixed the missing constant descriptions in the html and frameless
templates.
* Fixed the ri command-line options that customize the directories to be
searched for documentation.
* Fixed the XML generator. Patch by Anthony Durity.
* Stopped the XML template from generating invalid XML due to malformed
embedded ruby.
* Adding missing information about a class' constants to the XML template.
* Fixed the horizontal rule markup (---) so that it correctly adds a
horizontal rule rather than suppressing all text that follows.