libposix is an impementation of the core functionality of all Unix systems. It is a full, cross-platform implementation of the POSIX 2008 standard. It is meant to replace existing implementations of a Unix system's core libraries. It is an exact implementation of POSIX 2008 and nothing else (no extensions, no previous POSIX versions). However, it works well with possible extensions to the core system functionallity (for example, GNU or BSD).
PD4ML is a powerful PDF generating library that uses HTML and CSS for page layout and content definition. It allows developers to easily add PDF generation functionality to software written for the Java and .NET platforms. PD4ML is easy to deploy and does not rely on any native components. It is based on a proprietary HTML rendering engine, optimized for PDF layout generation. The rendering engine implements most standard features of HTML4/CSS2 and a number of custom PDF-generation-specific functions for pagination control, header/footer generation, watermarking, TOC generation, margin control, etc. PD4ML allows you to easily embed word processor documents, spreadsheets, and rich media content as attachments to the resulting PDF documents.
The pylib library features the popular py.test command line tool for rapidly writing and running tests in Python and py.execnet, a new way to do ad-hoc distribution of Python code to remote processes. py.test runs well on Linux, Windows, and OSX using Python 2.4 through to 2.6. It can distribute a single test run to multiple machines. It is used in many projects, ranging from running tens of thousands of tests integrated with buildbot to a few inlined tests on a command line script.
Schedule::Cron is a Perl module that provides a simple but complete cron-like scheduler. It can be used for periodically executing Perl subroutines. The philosophy behind Schedule::Cron is to call subroutines periodically from within one single Perl program instead of letting cron trigger several (possibly different) Perl scripts. Everything under one roof. Furthermore, Schedule::Cron provides a mechanism to create crontab entries dynamically, which isn't that easy with cron. It knows about all extensions (at least all extensions the author is aware of, i.e those of "Vixie" cron) for crontab entries like ranges including 'steps', specification of month and days of the week by name, or coexistence of lists and ranges in the same field. It even supports a bit more (like lists and ranges with symbolic names). It has existed since 1999 on CPAN and is successfully used in many projects.
Into is a cross-platform machine intelligence application framework written in C++. Into provides a different, fast way to build high-performance applications for image analysis, machine vision, pattern recognition, and artificial intelligence. It features a layered API and more than 20 fully interoperable plug-in modules for accessing image and data sources, powerful feature extractors, classifiers, neural networks, and much more. It also provides Ydin, an innovative execution engine that makes it easy to create dynamic programs that automatically run in parallel, enabling you to create more with less hassle, less code, and less time. Into uses Qt to let you create beautiful user interfaces for your applications with ease.
hwloc provides command line tools and a C API to obtain the hierarchical map of key computing elements, such as: NUMA memory nodes, shared caches, processor sockets, processor cores, and processor "threads". hwloc also gathers various attributes such as cache and memory information, and is portable across a variety of different operating systems and platforms. hwloc primarily aims at helping high-performance computing (HPC) applications, but is also applicable to any project seeking to exploit code and/or data locality on modern computing platforms.
Brace is a dialect of C that looks like Python. It has coroutines, hygenic macros, header generation, and libraries with graphics and sound. It is meant to be good for beginners, kids, and experts. Brace is translated to C, then compiled, with #! support and cached executables. It is fairly portable, and runs on GNU/Linux, Unix, and Windows with MinGW. It should also run on Mac OS X. It comes with a lot of demo programs, many with animated graphics.
classh is yet another wrapper around ssh for running commands on a number of hosts concurrently. It is similar to xCAT, pssh, Cluster ssh, and a gaggle of other utilities. The only pre-requisite for classh is Python 2.4 or later, and no formal installation is required; a copy of the classh.py file is sufficient to run commands. The SSHJobMan class from classh can be used to create custom job management scripts. This class lets you either wait until all output has returned from a batch job or process the results as they become available by incrementally polling the running job. The output, error messages, exit code, and start and completion times of each job are stored in the results. It's been tested on jobs of over 25,000 hosts and handles over 10,000 hosts per hour across a WAN and without noticeable impact on the administrator's host.
Herqq UPnP (HUPnP) is a software library for building UPnP devices and control points conforming to the UPnP Device Architecture version 1.1. It is designed to be simple to use and robust in operation. It is built using the Qt framework, following many of the design principles and programming practices used in the Qt framework. It integrates into Qt-based software smoothly and enables truly rapid UPnP development.
Bullet is a 3D game multiphysics library that provides state of the art collision detection and soft body and rigid body dynamics. Bullet is integrated into Cinema 4D, Lightwave, and Blender. A Houdini and Maya Plugin is available. It has a modular extendible C++ design with hot-swap of most components. The back-ends were optimized for pthreads/Win32 Threads multi-threading and PS3 Cell SPU. Other features include discrete and continuous collision detection (CCD), swept collision queries, ray casting with custom collision filtering, generic convex support (using GJK), capsule, cylinder, cone, sphere, box, and non-convex triangle meshes. Rigid body dynamics include constraint solvers, generic constraints, ragdolls, hinges, and ball-sockets. Constraint limits and motors are supported. Soft body support includes cloth, rope, and deformable objects. Import and export into COLLADA 1.4 Physics format is supported. Dynamic deformation of non-convex triangle meshes is supported by refitting the acceleration structures.