ANN: 4Suite 1.0b1
Uche Ogbuji
uche.ogbuji at fourthought.com
Sat Apr 16 01:52:19 CEST 2005
Today we release 4Suite 1.0 beta 1, now available from Sourceforge and
ftp.4suite.org.
Highlights of changes
--
* Minor to huge performance increases throughout the core libraries:
* Ft.Lib.Set implemented in C, resulting in faster evaluation of XPath
expressions using '/', '//', and '|')
* 40x speedup in startup time for Domlette parsing
* Additional optimization of XPath expressions involving '/', '//',
'child::' and others
* .docindex removed from Domlette nodes; they now compare to each
other in document order (e.g., when in a list, .sort() can be called
for document order). Resulting XPath/XSLT speedup
* XSLT whitespace stripping optimized; xml:space handling fixed
* XML string utilities now in module Ft.Xml.Lib.XmlString,
implemented in C, as part of Domlette optimizations
* Mini-SAX interface added to the Domlette Expat library, via
Ft.Xml.Sax. The "mini" is due to the fact that only the interfaces
required for parsing XSLT stylesheets are exposed.
* XML catalogs and XSLT stylesheets now read via the fast mini-SAX API
* Many more Domlette speed and memory optimizations
* RDF core: various optimizations result in speedup of RDF completes and
faster database access
* RDF core: better Unicode handling; improvements to the way statements
are printed, compared, iterated over, reified, serialized/deserialized
* RDF core: optimized RDFS validation (90% speedup plus other
optimizations) plus updated to current standard
* XML core: Ft.Xml.MarkupWriter introduced--very friendly interface for
generating XML content based on the XSLT writers, but adding
convenience methods for common element creation patterns, and
for inserting chunks of "literal" markup
* XML core: FtMiniDom removed
* XML core: All dependencies on PyExpat removed
* XML core: Domlette nodes have new attributes:
* xpathNamespaces, a dict of in-scope namespaces
* xpathAttributes, the node's attributes, not counting
those for namespace bindings
* Environment variable XML_CATALOG_FILES now supported
* XPath: extension functions that access the underlying OS are now
disabled by default (e.g., f:spawnv(), f:system(), f:env-var())
* In Ft.Lib.Uri.OsPathToUri and UriToOsPath, attemptAbsolute now
defaults
to True
* XLink: xlink:show='replace' behaves more usefully & sensibly
* BerkeleyDB (bsddb) RDF and repository drivers added (Py 2.3+ only)
* MySQL RDF and repository drivers optimized
* Repository: XSLT DocDefs repository can now use extension
functions/elements
* Repository: better handling of external entity resolution
* Doc generation issues resolved. API docs can now be generated for
every module in 4Suite (various
* XHTML 1.0 Transitional DTD added to default catalog
* Many more bug fixes and enhancements. See also
http://uche.ogbuji.net/tech/akara/?
xslt=irc.xslt&date=2005-04-11#03:52:25
4Suite is a comprehensive platform for XML and RDF processing, with base
libraries and a server framework. It is implemented in Python and C,
and provides Python and XSLT APIs, Web and command line interfaces.
For general information, see:
http://4suite.org
http://uche.ogbuji.net/tech/4Suite/
http://uche.ogbuji.net/tech/akara/nodes/2003-01-01/4suite-section
For the files, see:
ftp://ftp.4suite.org/pub/4Suite/
Sources:
ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.tar.gz
Windows installer:
ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.win32-py2.2.exe
ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.win32-py2.3.exe
ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.win32-py2.4.exe
Windows zip:
ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.zip
You can also get the files on Sourceforge:
https://sourceforge.net/projects/foursuite/
https://sourceforge.net/project/showfiles.php?group_id=39954
Documentation:
In the locations specified above, with filenames of the form
4Suite-docs-1.0b1.*
Release notes
--
If you have built a 4Suite repository using an older version of 4Suite,
you will probably have to make adjustments for this new release. If you
used 0.12.0a3, or a more recent version, then you will have to follow
the
migration instructions detailed in the following message:
http://lists.fourthought.com/pipermail/4suite/2004-October/012933.html
In general, it's worth being familiar with the following document:
http://uche.ogbuji.net/tech/akara/nodes/2003-01-01/backup
There have been on and off problems for Mac OS X users. We think these
are now resolved. Please see the following page for current status,
notes and recommendations:
http://uche.ogbuji.net/tech/akara/nodes/2003-01-01/osx
Installation locations have changed since 0.12.0a3 on both Windows and
Unix. See the current installation directory layout document at:
http://4suite.org/docs/installation-locations.xhtml
If there is a server config files at the default location for the
build and platform (e.g. /usr/local/lib/4Suite/4ss.conf by default on
UNIX), it will be renamed to 4ss.conf.old and then overwritten.
For insulation from Domlette implementation changes, developers should
always use the generic Ft.Xml.Domlette APIs (rather than, say
Ft.Xml.cDomlette).
--
Uche Ogbuji Fourthought, Inc.
http://uche.ogbuji.net http://fourthought.com
http://copia.ogbuji.net http://4Suite.org
Use CSS to display XML, part 2 - http://www-128.ibm.com/developerworks/edu/x-dw-x-xmlcss2-i.html
Writing and Reading XML with XIST - http://www.xml.com/pub/a/2005/03/16/py-xml.html
Use XSLT to prepare XML for import into OpenOffice Calc - http://www.ibm.com/developerworks/xml/library/x-oocalc/
Schema standardization for top-down semantic transparency - http://www-128.ibm.com/developerworks/xml/library/x-think31.html
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