This is a pure Common Lisp library to create, transform and render anti-aliased vectorial paths.

This a Common Lisp library to convert geographic coordinates between latitude/longitude and Maidenhead locator system.

This library provides modern file handling for Common Lisp, which avoids many of the pitfalls of pathnames.

deeds allows for efficient event delivery to multiple handlers with a complex event filtering system.

A heap-based priority queue whose first and foremost priority is speed.

This is a system to help you easily and quickly deploy standalone common lisp applications as binaries. Specifically it is geared towards applications with foreign library dependencies that run some kind of GUI.

This package provides CFFI bindings for Common Lisp to the Cairo C library.

This library is a collection of pseudo random number generators.

While Common Lisp does provide a RANDOM function, it does not allow the user to pass an explicit SEED, nor to portably exchange the random state between implementations. This can be a headache in cases like games, where a controlled seeding process can be very useful.

For both curiosity and convenience, this library offers multiple algorithms to generate random numbers, as well as a bunch of generally useful methods to produce desired ranges.

CL-Yacc is a LALR(1) parser generator for Common Lisp, similar in spirit to AT&T Yacc, Berkeley Yacc, GNU Bison, Zebu, lalr.cl or lalr.scm.

CL-Yacc uses the algorithm due to Aho and Ullman, which is the one also used by AT&T Yacc, Berkeley Yacc and Zebu. It does not use the faster algorithm due to DeRemer and Pennello, which is used by Bison and lalr.scm (not lalr.cl).

cl-syslog is a Common Lisp library that provides access to the syslog logging facility.

CL-octet-streams is a library implementing in-memory octet streams for Common Lisp. It was inspired by the trivial-octet-streams and cl-plumbing libraries.

This is a library that implements delimited continuations by transforming Common Lisp code to continuation passing style.

core-gp is a Common Lisp library for genetic programming (GP) algorithms. It allows standard GP, strongly-typed GP, grammatical evolution as well as standard genetic algorithms.

The Babel library solves a similar problem while understanding more encodings. Trivial UTF-8 was written before Babel existed, but for new projects you might be better off going with Babel. The one plus that Trivial UTF-8 has is that it doesn't depend on any other libraries.

40ants-plantuml provides a wrapper around the PlantUML jar library.

CL-DOT is a Common Lisp library for generating Graphviz dot output from arbitrary Lisp data.

This package provides a common lisp CFFI wrapper for the SciPy version of Cephes special functions.

This package provides a small utility library to open a thing (usually a file or URL) in an appropriate handler (usually an external file manager or browser).

trivial-download allows you to download files from the Internet from Common Lisp. It provides a progress bar.

Defstar is a collection of Common Lisp macros that can be used in place of defun, defmethod, defgeneric, defvar, defparameter, flet, labels, let* and lambda. Each macro has the same name as the form it replaces, with a star added at the end, e.g. defun. (the exception is the let* replacement, which is called *let).

This package provides a standard way to canonicalize slot values.

This library exports three symbols: with-raw-io, read-char, and read-line, to provide raw POSIX I/O in Common Lisp.

This collection of utilities is useful in contexts where you want a macro that uses lambda-lists in some fashion but need more precise processing.

This is a library for selecting portions of sequences, arrays or data-frames.