Free query library software for linux

Rasqal is a C library for querying RDF, supporting the RDQL and SPARQL languages. It provides APIs for creating a query and parsing query syntax.

Rasqal RDF Query Library features pluggable triple-store source and matching interfaces, an engine for executing the queries and an API for manipulating results as bindings.

It uses the Raptor RDF parser to return triples from RDF content and can alternatively work with the Redland RDF librarys persistent triple stores. It is portable across many POSIX systems.

Flate library is a template library used to deal with html code in CGI applications. The library includes C and Perl support. All html code is put in an external file (the template) and printed using the library functions: variables, zones (parts to be displayed or not) and tables (parts to be displayed 0 to n times).
Using this method you dont need to modify/recompile your application when modifying html code, printing order doesnt matter in your CGI code, and your CGI code is much cleaner.
Enhancements:
- can now include external files with #INCLUDEFILE /path/to/file.html

T28 library is a simple library that allows interaction with a Ericsson T28 phone (and probably works with other models as well). T28 library does not have SMS support.
Main features:
- load/save phonebook
- set language
- set audio mode selection
- get battery properties (level, temperature, etc)works only on T28
- get signal level
- send keys to mobile device
- set date/time
Enhancements:
- Lots of documentation was added.
- The code was cleaned up and tested with other SE models.
- Minor bugs were fixed.

Fid Core Library is the core library for the Frigand Imperial Desktop, a genuine Unix desktop environment based around multiprocessing, text-stream IPC, and the "everything is a file" concept.
It supports Emacs-like extensibility, customizability, and built-in multi-buffer support.
Enhancements:
- This release adds testing support for the axioms over buffer implementations and user interfaces, a better implementation of interactive, and a new cursor movement mechanism that allows the user interface to manage point itself (and, hence, keep it always on a widget).

Papyrus is a 2d C++ scenegraph library that utilizes the cairo library to perform drawing operations. In this respect, Papyrus Library is similar to the Gnome::Canvas library.

The initial implementation focuses on function over form, and as a result it should not be considered an optimized run-time library (but it does run reasonably well).

FF RADIUS Library is a C library that implements some parts of RFCs 2865 and 2866 to provide a RADIUS implementation.
Youre welcome to modify/enhance it! Please let me know of any further developments, in order for me to include/link them.
Enhancements:
- A segfault was fixed in makeMD5().

Memory Structures Library (MemSL) is a complete data structures/collection classes library with memory tracing, memory debugging, entry/exit tracing, exception handling, definable memory handlers, built-in thread support, and much more.

The project supports single, double, and circular linked lists, AVL balanced and threaded binary trees, dynamic hashing tables, stacks, queues and dequeues (using arrays or linked lists), sets (Pascal implementation, with union, difference, intersection, etc.), bags, tables and dictionaries, priority heaps, priority search queue, and more.

DTI stands for Diffusion Tensor Imaging and is a magnetic resonance imaging method that can be used to measure local information about the structure of white matter pathways within the human brain. Combining DTI data with the computational methods of MR tractography, neuroscientists can estimate the locations and sizes of nerve bundles (white matter pathways) that course through the human brain. DTI-Query allows neuroscientists to place and interactively manipulate box-shaped regions (or volumes of interest) to selectively display pathways that pass through specc anatomical areas.
Enhancements:
- Improved support for tensor data formats. (Now supports 5D tensor files, and arbitrary ordering of tensor indices.) Has been tested with tensor image files output by the AFNI tools: http://afni.nimh.nih.gov/sscc/dglen/DTIQuery
- Support for Mac OS X (Carbon)
- Binaries released for Windows, Linux (32- and 64-bit), and MacOS X (PPC and Intel)
- Added choice of integration method (Eulers method, Runge Kutta 2nd order, Runge Kutta 4th order) for STT tracking.
- Improved support for reading NIFTI background images (correctly handles q-form/s-form matrices).
- Can now save visible pathways (as a binary format, or as a NIFTI mask image).
- Many minor GUI enhancements and bug-fixes.