QLogo is an interpreter for the Logo language written in C++ using Qt and OpenGL. Specifically, it mimics, as reasonably as possible, the UCBLogo interpreter.

The Lout document formatting system reads a high-level description of a document similar in style to LaTeX and produces a PostScript or plain text output file.

Lout offers an unprecedented range of advanced features, including optimal paragraph and page breaking, automatic hyphenation, PostScript EPS file inclusion and generation, equation formatting, tables, diagrams, rotation and scaling, sorted indexes, bibliographic databases, running headers and odd-even pages, automatic cross referencing, multilingual documents including hyphenation (most European languages are supported), formatting of computer programs, and much more, all ready to use. Furthermore, Lout is easily extended with definitions which are very much easier to write than troff of TeX macros because Lout is a high-level, purely functional language, the outcome of an eight-year research project that went back to the beginning.

Lsof stands for LiSt Open Files, and it does just that. It lists information about files that are open by the processes running on the system.

The cqueues extension module for Lua implements an event loop that operates through the yielding and resumption of coroutines. It is designed to be non-intrusive, composable, and embeddable within existing applications.

LuaSocket is a Lua extension library that is composed by two parts: a C core that provides support for the TCP and UDP transport layers, and a set of Lua modules that add support for functionality commonly needed by applications that deal with the Internet.

Among the supported modules, the most commonly used implement the SMTP (sending e-mails), HTTP (WWW access) and FTP (uploading and downloading files) client protocols. These provide a very natural and generic interface to the functionality defined by each protocol. In addition, you will find that the MIME (common encodings), URL (anything you could possible want to do with one) and LTN12 (filters, sinks, sources and pumps) modules can be very handy.

LuaExpat is a SAX XML parser based on the Expat library.

LGI is gobject-introspection based dynamic Lua binding to GObject based libraries. It allows using GObject-based libraries directly from Lua. Notable examples are GTK+, GStreamer and Webkit.

LuaFileSystem is a Lua library developed to complement the set of functions related to file systems offered by the standard Lua distribution. LuaFileSystem offers a portable way to access the underlying directory structure and file attributes.

This package provides Lua table recycling pools for LuaJIT.

The luaossl extension module for Lua provides comprehensive, low-level bindings to the OpenSSL library, including support for certificate and key management, key generation, signature verification, and deep bindings to the distinguished name, alternative name, and X.509v3 extension interfaces. It also binds OpenSSL's bignum, message digest, HMAC, cipher, and CSPRNG interfaces.

The cqueues extension module for Lua implements an event loop that operates through the yielding and resumption of coroutines. It is designed to be non-intrusive, composable, and embeddable within existing applications.

Lua is a powerful, fast, lightweight, embeddable scripting language. Lua combines simple procedural syntax with powerful data description constructs based on associative arrays and extensible semantics. Lua is dynamically typed, runs by interpreting bytecode for a register-based virtual machine, and has automatic memory management with incremental garbage collection, making it ideal for configuration, scripting, and rapid prototyping.

Selene is a simple C++11 header-only library enabling seamless interoperability between C++ and Lua programming language.

LuaRocks is the package manager for the Lua programming language.

It allows you to install Lua modules as self-contained packages called rocks, which also contain version dependency information. This information can be used both during installation, so that when one rock is requested all rocks it depends on are installed as well, and also optionally at run time, so that when a module is required, the correct version is loaded. LuaRocks supports both local and remote repositories, and multiple local rocks trees.

This package provides a FFI-based Lua API for ngx_http_lua_module or ngx_stream_lua_module.

Lua is a powerful, fast, lightweight, embeddable scripting language. Lua combines simple procedural syntax with powerful data description constructs based on associative arrays and extensible semantics. Lua is dynamically typed, runs by interpreting bytecode for a register-based virtual machine, and has automatic memory management with incremental garbage collection, making it ideal for configuration, scripting, and rapid prototyping.

LuaJIT is a Just-In-Time Compiler (JIT) for the Lua programming language. Lua is a powerful, dynamic and light-weight programming language. It may be embedded or used as a general-purpose, stand-alone language.

LGI is gobject-introspection based dynamic Lua binding to GObject based libraries. It allows using GObject-based libraries directly from Lua. Notable examples are GTK+, GStreamer and Webkit.

This package provides Lua LRU cache based on the LuaJIT FFI.

Lutok is a lightweight C++ API library for Lua.

Lutok provides thin C++ wrappers around the Lua C API to ease the interaction between C++ and Lua. These wrappers make intensive use of RAII to prevent resource leakage, expose C++-friendly data types, report errors by means of exceptions and ensure that the Lua stack is always left untouched in the face of errors. The library also provides a small subset of miscellaneous utility functions built on top of the wrappers.

Lutok focuses on providing a clean and safe C++ interface; the drawback is that it is not suitable for performance-critical environments. In order to implement error-safe C++ wrappers on top of a Lua C binary library, Lutok adds several layers or abstraction and error checking that go against the original spirit of the Lua C API and thus degrade performance.

LuaSec is a binding for OpenSSL library to provide TLS/SSL communication. It takes an already established TCP connection and creates a secure session between the peers.

LDoc is a LuaDoc-compatible documentation generation system for Lua source code. It parses the declaration and documentation comments in a set of Lua source files and produces a set of XHTML pages describing the commented declarations and functions.

LPeg is a pattern-matching library for Lua, based on Parsing Expression Grammars (PEGs).

LuaFileSystem is a Lua library developed to complement the set of functions related to file systems offered by the standard Lua distribution. LuaFileSystem offers a portable way to access the underlying directory structure and file attributes.