THE-COST-OF-NOTHING is a library for measuring the run time of Common Lisp code. It provides macros and functions for accurate benchmarking and lightweight monitoring. Furthermore, it provides predefined benchmarks to determine the cost of certain actions on a given platform and implementation.

trivial-clipboard gives access to the system clipboard.

This system is an implementation of the Common Lisp type system; particularly cl:typep and cl:subtypep.

This is a Common Lisp library which provides functionality to read/write Bit Map Font (BMF) into text, JSON and XML.

dbi is a Common Lisp library providing a database independent interface for MySQL, PostgreSQL and SQLite.

This library implements efficient algorithms that calculate various string metrics in Common Lisp:

• Damerau-Levenshtein distance

• Hamming distance

• Jaccard similarity coefficient

• Jaro distance

• Jaro-Winkler distance

• Levenshtein distance

• Normalized Damerau-Levenshtein distance

• Normalized Levenshtein distance

• Overlap coefficient

Feeder is a syndication feed library. It presents a general protocol for representation of feed items, as well as a framework to translate these objects from and to external formats. It also implements the RSS 2.0 and Atom formats within this framework.

This library is an implementation of Deflate (RFC 1951) decompression, with optional support for ZLIB-style (RFC 1950) and gzip-style (RFC 1952) wrappers of deflate streams. It currently does not handle compression.

cl-charms is an interface to libcurses in Common Lisp. It provides both a raw, low-level interface to libcurses via CFFI, and a more higher-level lispier interface.

This a Common Lisp library to convert geographic coordinates between latitude/longitude and Open Location Code.

DEFLATE data, defined in RFC1951, forms the core of popular compression formats such as zlib (RFC 1950) and gzip (RFC 1952). As such, Chipz also provides for decompressing data in those formats as well. BZIP2 is the format used by the popular compression tool bzip2.

cl-inotify uses cl-cffi to provide a Common Lisp interface to the Linux inotify API.

This is a Common Lisp library to load images in the PNG image format, both from files on disk, or streams in memory.

System-Load is a Common Lisp library for accessing the system's CPU and memory usage.

cl-tar is a Common Lisp library providing a high-level interface for interacting with tar archives.

This is a lightweight, non-consing, optimized queue implementation for Common Lisp.

Clavier is a general purpose validation library for Common Lisp.

Linedit is a readline-style library written in Common Lisp that provides customizable line-editing for Common Lisp programs.

Babel is a charset encoding and decoding library, not unlike GNU libiconv, but completely written in Common Lisp.

This Common Lisp library implements a parser generator for the ABNF grammar format as described in RFC2234. The generated parser is a regular expression scanner provided by the cl-ppcre lib, which means that we can't parse recursive grammar definition. One such definition is the ABNF definition as given by the RFC. Fortunately, as you have this lib, you most probably don't need to generate another parser to handle that particular ABNF grammar.

concurrent-hash-tables is a Common Lisp portability library wrapping some implementations of concurrent hash tables which do not have to be entirely locked in their operation, including 42nd-at-threadmill, luckless, and a fallback, segmented hash table.

This is a trivial utility for distinguishing between a process running in a real terminal window and a process running in a dumb one, e.g. emacs-slime.

Plump is a parser for HTML/XML-like documents, focusing on being lenient towards invalid markup. It can handle things like invalid attributes, bad closing tag order, unencoded entities, inexistent tag types, self-closing tags and so on. It parses documents to a class representation and offers a small set of DOM functions to manipulate it. It can be extended to parse to your own classes.

Tripod is a Common Lisp web server aiming to ease plain text, HTML, and Gopher website hosting.