This package provides a portable and efficient R[4567]RS implementation of regular expressions, supporting both POSIX syntax with various (irregular) PCRE extensions, as well as SCSH's SRE syntax, with various aliases for commonly used patterns.

This package provides a superset of the popular Scheme match package by Andrew Wright, written in fully portable syntax-rules and thus preserving hygiene.

This package provides a library of procedures for formatting Scheme objects to text in various ways, and for easily concatenating, composing and extending these formatters efficiently without resorting to capturing and manipulating intermediate strings.

This package provides a collection of SRFI libraries for Chez Scheme.

The Nanopass framework is an embedded domain-specific language for writing compilers composed of several simple passes that operate over well-defined intermediate languages. The goal of this organization is both to simplify the understanding of each pass, because it is responsible for a single task, and to simplify the addition of new passes anywhere in the compiler. Nanopass reduces the boilerplate required to create compilers, making them easier to understand and maintain.

Schemesh is an interactive shell scriptable in Lisp. It supports interactive line editing, autocompletion, history and the familiar Unix shell syntax.

The stex package extends LaTeX with a handful of commands for including Scheme code (or pretty much any other kind of code, as long as you don't plan to use the Scheme-specific transcript support) in a document. It provides the programs scheme-prep and html-prep to convert stex documents to LaTeX and HTML, respectively, plus makefile templates, style files, and other resources. The stex system is used to typeset The Scheme Programming Language and the Chez Scheme User's Guix, among other documents.

This package provides a port of the MIT/GNU Scheme Scmutils program to Chez Scheme. The port consists of a set of libraries providing most of the functionality of the original.

Chez Scheme is a self-hosting compiler: building it requires ``boot files'' containing the Scheme-implemented portions compiled for the current platform. (Chez can then cross-compile boot files for all other supported platforms.)

The Racket package cs-bootstrap (part of the main Racket Git repository) implements enough of a Chez Scheme simulation to load the Chez Scheme compiler purely from source into Racket and apply the compiler to itself, thus bootstrapping Chez Scheme. Bootstrapping takes about 10 times as long as using an existing Chez Scheme, but cs-bootstrap supports Racket 7.1 and later, including the Racket BC variant.

Chez-sockets is an extensible sockets library for Chez Scheme.

This package provides a set of MIT/GNU Scheme compatibility libraries for Chez Scheme. The main goal was to provide the functionality required to port the program Scmutils to Chez Scheme.

This is the precise pre-release version of Chez Scheme from a specific Racket release. It is used to build Racket and to bootstrap the released version of Chez Scheme.

Chez Scheme is a self-hosting compiler: building it requires ``boot files'' containing the Scheme-implemented portions compiled for the current platform. (Chez can then cross-compile bootfiles for all other supported platforms.)

This package provides boot files for the released version of Chez Scheme bootstrapped by chez-scheme-for-racket. Chez Scheme 9.5.4 or any later version can be used for bootstrapping. Guix ultimately uses the Racket package cs-bootstrap to bootstrap its initial version of Chez Scheme.

ChezWEB is a system for doing Knuthian style WEB programming in Scheme.

CHICKEN is a compiler for the Scheme programming language. It produces portable and efficient C and supports the R5RS and R7RS standards, and many extensions.

This package provides an implementation of SRFI-69 hash tables for CHICKEN Scheme, along with SRFI-90 extensions.

This egg provides a way to do on-the-fly compilation of source code and load it into the running process.

This package provides facilities to explore CHICKEN documentation from the command-line and from the REPL. It also provides an API to access this documentation from your own programs.

The getopt-long library implements command line option parsing, in the spirit of the GNU C library function getopt_long. Both long and short options are supported.

The theory is that people should be able to constrain the set of options they want to process using a grammar, rather than some arbitrary structure. The grammar makes the option descriptions easy to read.

Intarweb parses all headers into more useful Scheme values. It serves as a low-level basis for http servers or clients.

This extension provides a parser which reads in text in svnwiki format and converts it into an abstract SXML representation.

Provides robust HTTPS/TLS support out of the box with an API compatible with http-client.