CL-DISKSPACE is a Common Lisp library to list disks with the command line tool df and get disk space information using statvfs.

This is a string/octets parser library for Common Lisp with speed and readability in mind. Unlike other libraries, the code is not a pattern-matching-like, but a char-by-char procedural parser.

Chemboy is a Common Lisp program for doing basic chemistry calculations. This package provides the text-based interface for Chemboy.

This a Common Lisp library to convert geographic coordinates between latitude/longitude and MGRS.

This package exports the following function to parse floating-point values from a string in Common Lisp.

Alternative to the compiler-macro library:

• Here, we do not treat compiler notes as warnings, but instead these are a separate class of conditions. These are also not errors.

• Two main condition classes are provided: compiler-macro-notes:note and compiler-macro-notes:optimization-failure-note. While the latter is a subclass of the former, the latter notes are printed in a slightly different manner to the former.

• To be able to correctly print the expansion path that led to the condition, user code is expected to avoid performing a nonlocal exit to a place outside with-notes.

Portability library for IEEE float features that are not covered by the Common Lisp standard.

cl-peppol provides access to code lists extracted from the OpenPEPPOL standard for electronic business and invoicing in Europe.

This library generates sdf (https://steamcdn-a.akamaihd.net/apps/valve/2007/SIGGRAPH2007_AlphaTestedMagnification.pdf), psdf and msdf (https://github.com/Chlumsky/msdfgen/files/3050967/thesis.pdf) atlases.

cl-forms provides functionality for managing web forms in Common Lisp.

It supports various field types (string, boolean, integer, email, password, and more) and allows rendering through multiple backends, such as cl-who and djula.

This package provides a BNF parser in Common Lisp.

Binary-types is a Common Lisp package for reading and writing binary files. Binary-types provides macros that are used to declare the mapping between Lisp objects and some binary (i.e. octet-based) representation.

This library contains a lexer for syntaxes that use shell-like rules for quoting and commenting. It is a port of the shlex module from Python’s standard library.

This system implements binding threading macros -- a kind of threading macros with different semantics than classical, Clojure core threading macros or their extension, swiss-arrows. Two Common Lisp implementations of those are arrows and arrow-macros.

This system is a fork of arrows with changes in semantics that make it impossible to merge back upstream.

YASON is a Common Lisp library for encoding and decoding data in the JSON interchange format.

This package allows flexible specification of package-local preferences.

This is a baseline JPEG codec written in Common Lisp. It can be used for reading and writing JPEG image files.

RTG-MATH provides a selection of the math routines most commonly needed for making realtime graphics in Lisp.

This project is intended as a catchall for small, general-purpose extensions to Common Lisp. It contains:

• new-let, a macro that combines and generalizes let, let* and multiple-value-bind,

• gmap, an iteration macro that generalizes map.

This library extracts the TLD (Top Level Domain) from domains. The information is taken from https://publicsuffix.org.

The Plump-SEXP library is a backend for Plump which can convert between S-expressions and the Plump DOM.

This library contains code that implements Common Lisp hash tables.

UFFI provides a universal foreign function interface (FFI) for Common Lisp.

The Common Foreign Function Interface (CFFI) purports to be a portable foreign function interface for Common Lisp. The CFFI library is composed of a Lisp-implementation-specific backend in the CFFI-SYS package, and a portable frontend in the CFFI package.