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[ANN] libRUIN project development release 0.2.0


From: Julian Graham
Subject: [ANN] libRUIN project development release 0.2.0
Date: Tue, 20 Sep 2011 00:26:23 -0400

Hi everyone,

I am pleased to announce that the libRUIN project has made a new
formal development release, version 0.2.0.

Our project description, from Savannah: libRUIN (Renderer for User
Interfaces in Ncurses) is a rendering library for various XML-based
user interface markup languages (such as Mozilla XUL), using the
Ncurses terminal control library as a rendering target. GNU Guile and
the SDOM Scheme module are used as the "glue" that manages user input
and event handling. An application programmer passes an XML document
(including, potentially, a set of CSS stylesheets) and an Ncurses
WINDOW structure, and libRUIN paints the WINDOW according to the
markup and CSS; the programmer may subsequently pass Ncurses-style
input strings to that WINDOW via libRUIN, and libRUIN will handle the
resulting event flows.

This release features major improvements in performance and accuracy:
The layout model has been rewritten to be independent from document
structure, which brings libRUIN's layout and rendering pipeline into
tighter compliance with the W3C CSS recommendation and allows for much
greater flexibility when positioning boxes and flowing text.  There
are now first class models in the code for table structure and for
content and white-space analysis, which simplify the internals of
libRUIN's layout procedures.  A number of bugs related to the style
lookups and inheritance, layout of nested inline elements, and
pseudo-element state have been resolved.  A suite of unit tests in C
has been created to supplement the existing suite of visual test
cases.  The newest versions of the SCSS and SDOM R6RS libraries come
bundled with this release, and libRUIN has been ported to use the
newest stable series of GNU Guile, which brings with it enormous gains
in speed and functionality.  See the NEWS file included in the
distribution and the public repository logs for a detailed list of
changes.

For more information, swing by http://www.nongnu.org/libruin or check
out our project page on Savannah, at
http://savannah.nongnu.org/projects/libruin -- you can pick up the
release from the downloads section.



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