New PLaneT Packageshttp://planet.plt-scheme.org/The newest packages available from PLaneTen-usuntyped/dispatch.plt 1.2<p>A tool for configuring controller procedures in web applications.</p>http://planet.plt-scheme.org/display.ss?package=dispatch.plt;owner=untypeduntyped/unlib.plt 3.3A set of utilities developed by Untyped.Fixed some documentation bugs.http://planet.plt-scheme.org/display.ss?package=unlib.plt;owner=untypeddherman/set.plt 3.0A functional set implementation.<p>Improved implementation, added <code>partition</code> and <code>partitions</code> operations.</p><p>Also, the printed representation of sets now prints the set contents.</p>http://planet.plt-scheme.org/display.ss?package=set.plt;owner=dhermanvegashacker/leftparen.plt 1.2LeftParen lets you write web apps quickly. Since I'm having trouble with the PLaneT documentation features, please see http://leftparen.com for more information.Cookie expirations are no longer hard-coded to a particular date and I use the new hash table functions (hash-ref, hash-set!, make-hash, etc). This means that LP now requires PLT Scheme v3.99.0.23 or greater.http://planet.plt-scheme.org/display.ss?package=leftparen.plt;owner=vegashackerdherman/json.plt 1.0Implements the JSON data format.<p>Initial release.</p>http://planet.plt-scheme.org/display.ss?package=json.plt;owner=dhermanschematics/schemeunit.plt 2.10SchemeUnit is a unit testing framework based on the Extreme Programming unit test frameworksSchemeUnit has been updated to run in PLT Scheme 3.99 (as well as the 370 series).The GUI test runner now displays additional test information.http://planet.plt-scheme.org/display.ss?package=schemeunit.plt;owner=schematicsryanc/macros.plt 1.2Defines macros for struct definitions and interface-checked class programming. Also provides utilities for macro-writers.http://planet.plt-scheme.org/display.ss?package=macros.plt;owner=ryancdherman/struct.plt 2.4A library of various data structures based on structs, including algebraic datatypes and inheritance hierarchies.Fixed compatibility issues for 3.99, and should still be compatible with 3xx.http://planet.plt-scheme.org/display.ss?package=struct.plt;owner=dhermandherman/test.plt 1.3Utilities for unit testing.Removed dependency on SchemeUnit 1.x; should now work both in PLT 3xx and 4.http://planet.plt-scheme.org/display.ss?package=test.plt;owner=dhermandherman/list.plt 2.0Combines the best of the standard mzscheme list libraries.http://planet.plt-scheme.org/display.ss?package=list.plt;owner=dherman