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This is a collection of modules that represent, create, and extract
information from HTML syntax trees. These modules used to be part
of the libwww-perl distribution, but are now unbundled in order to
facilitate a separate development track. Bug reports and discussions
about these modules can still be sent to the <libwww@perl.org>
mailing list, or to <sburke@cpan.org>.
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XML::Simple is a Perl module that makes it really easy to read and
write XML files. You can get a full rundown of the module's
capabilities and limitations in the manual page.
XML::Simple was originally developed for the purpose of reading and
writing config files in XML format (which offers various advantages
over say .INI format). Having said that, many people find it useful
for other purposes.
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This module provides ways to parse XML documents. It is built on
top of XML::Parser::Expat, which is a lower level interface to James
Clark's expat library. Each call to one of the parsing methods
creates a new instance of XML::Parser::Expat which is then used to
parse the document. Expat options may be provided when the XML::Parser
object is created.
These options are then passed on to the Expat object on each parse
call. They can also be given as extra arguments to the parse methods,
in which case they override options given at XML::Parser creation
time.
Summary
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This patch fixes a problem in the Postfix SMTP client's fallback
relay feature in snapshot releases after 20001005.
By default, Postfix does not use the fallback_relay feature. To
find out if your system uses it, issue the command:
postconf fallback_relay
The result is "fallback_relay =" when the feature is turned off.
Description
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As of 20001005, the Postfix SMTP client will send mail to a fallback
relay host (if one is configured) even when the local machine is
a backup MX host for the final destination.
This causes a loop when the primary MX host is down. Postfix receives
the mail, because it's a backup MX host for the destination. Postfix
then sends the mail to the fallback relay, because the primary MX
host is down. The fallback sends the mail back to Postfix, because
it's a backup MX host. Mail then bounces after 25 or so iterations.
Laurent Wacrenier had the, um, pleasure, of finding this one.
Solution
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If the local machine is listed as MX host for the final destination,
do not send undeliverable mail to the fallback relay. That is how
releases prior to 20001005 work, including 19991231.
This patch should apply to all snapshots since 20001005, but I have
tested this only with 20001217.
To apply, step into the src/smtp source directory, feed this text
into the patch command, and rebuild. The "make install" command
replaces only the smtp client program.
This is a nice module that can query quotes from almost every financial
exchange in the world, to create custom stock tickers for your tumbling
stock-market needs.
Put in misc after discussion between naddy@, camield@, espie@
efficiently solves systems of linear equalities and inequalities.
Constraints may be either requirements or preferences. Client code
specifies the constraints to be maintained, and the solver updates the
constrained variables to have values that satisfy the constraints.
A technical report is included in the distribution that describes the
algorithm, interface, and implementation of the Cassowary solver.
Additionally, the distribution contains toy sample applications
written in Smalltalk, C++, Java, and Python, and a more complex
example Java applet, the "Constraint Drawing Application".
MAINTAINER= Peter Valchev <pvalchev@toxiclinux.org>
(STL), which is supposed to become a part of the C++ standart library
and therefore is an ideal basis when writing portable programs.
For the design of the GTL's API the API of LEDA is used as a base. GTL
contains the classes needed to work with graphs, nodes and edges and
some basic algorithms as building blocks for more complex graph
algorithms. Further algorithms are under work.
Unfortunately, STL has no support for graphs and graph algorithms.
However, graphs are widely used to model complex relational
structures.
MAINTAINER= Peter Valchev <pvalchev@toxiclinux.org>
also performs standart or Monte Carlo simulations. It allows you
to specify a set of linear or nonlinear equations and solve them
using parameter values you choose or parameter values sampled
from specified statistical distributions. Outputs can be compared.
It consists of two pieces - a model generator and a simulation
engine. The model generator was created to facilitate the model
maintenance and simulation definition, while keeping execution
time fast. Other programs have been created to the same end, the
Matlab family of graphical interactive programs being some of the
more general and easy to use.
MAINTAINER= Peter Valchev <pvalchev@toxiclinux.org>
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HTML::TableExtract is a module that simplifies the extraction of
information contained in tables within HTML documents.
Tables of note may be specified using Headers, Depth, Count, or
some combination of the three.
