google-rfc-2445 is a Java implementation of RFC 2445 recurrence rules. RFC 2445 describes a scheme for calendar interoperability. This project implements core parts of RFC 2445, including a parser for recurrence rules and date lists and a mechanism for evaluating recurrence rules.
The Darwin Calendar Server is a standards-compliant server that allows multiple users to collaboratively share calendaring information. It provides a shared location on the network to store schedules, and allows users to send each other and manage invitations. In order to provide interoperability with multiple calendaring clients, the server implements the CalDAV protocol, which is an extension of WebDAV, which is in turn an extension of HTTP.
Apache XML Graphics Commons is a library that consists of several reusable components used by Apache Batik and Apache FOP. Many of these components can easily be used separately outside the domains of SVG and XSL-FO. You will find components such as a PDF library, an RTF library, Graphics2D implementations that let you generate PDF and PostScript files, and much more.
OpenSAML is a portable implementation of the Security Assertion Markup Language (SAML) standard for the formation and exchange of authentication, attribute, and authorization data using XML, as defined by OASIS. There are interfaces for a range of languages, including C++ and Java.
Flickcurl is a C library for calling the Flickr Web service API. It handles the API signing, token management, and parameter encoding and decoding, resulting in C functions for the Web services APIs. It uses libcurl to call the REST Web service, and libxml2 to manipulate the XML responses. The library supports reading photo, tag, and comments information, the photo upload and searching APIs, and writing tags and comments. It provides utilities such as "flickcurl" to exercise the API and "flickrdf" to get RDF metadata descriptions out of photos, tags, and machine tags.
JCPP is a complete, compliant, standalone, pure Java implementation of the C preprocessor. It is intended to be of use to people writing C-style compilers in Java using tools like sablecc, antlr, JLex, CUP, and so forth. It has been used to successfully preprocess much of the source code of the GNU C library.