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.

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 Scheme is both a programming language and a high-performance implementation of that language. The language is a superset of R6RS Scheme with numerous extensions, including native threads, non-blocking I/O, local modules, and much more. Chez Scheme compiles source expressions incrementally to machine code, providing the speed of compiled code in an interactive system. The system is intended to be as reliable and efficient as possible, with reliability taking precedence over efficiency if necessary.

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

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

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

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 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.

The crypto-tools egg implements useful cryptographic primitives. More specifically, provided are:

• binary blobs

  • marshallers to and from hex strings

  • blob xor

  • blob padding using either PKCS#5 or ISO7816-4

• Block cipher modes of operation

  • CBC with or without incorporated encrypted IV in the ciphertext

  • CTR with or without incorporated IV in the ciphertext

This library implements the Wu-Manber algorithm for approximate string searching with errors, popularized by the agrep Unix command and the glimpse file indexing tool.

This package provides the SRFI-13 string library for Chicken scheme.

Character sets can be created, extended, tested for the membership of a characters and be compared to other character sets

The threads implemented in CHICKEN are so called "green" threads, based on first-class continuations. Native threads that map directly to the threads provided by the operating system are not supported. The advantage of this is that threads are very lightweight and somewhat larger degree of determinism. The disadvantage is that execution of Scheme code on multiple processor cores is not available.

This ``integer set'' CHICKEN Scheme library implements bit vectors. Bit-vectors provide an abstract interface to bitwise operations typically done with integers.

The list library defined in SRFI-1 contains a lot of useful list processing procedures for construction, examining, destructuring and manipulating lists and pairs.

CHICKEN is a compiler for the Scheme programming language. CHICKEN pr oduces portable and efficient C, supports almost all of the R5RS Scheme la nguage standard, and includes many enhancements and 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 an implementation of SRFI-69 hash tables for CHICKEN Scheme, along with SRFI-90 extensions.

This CHICKEN Scheme library provides a facility for creating and using variant records, as described in the book Essentials of Programming Languages by Friedman, Wand, and Haynes.

This package provides a simple testing utility for CHICKEN Scheme.

Ungoogled-Chromium is the Chromium web browser, with some functionality disabled in order to protect the users privacy. This package also includes the chromedriver command, which can be useful for automated web testing.

Ungoogled-Chromium is the Chromium web browser, with some functionality disabled in order to protect the users privacy. This package also includes the chromedriver command, which can be useful for automated web testing.

Forgejo Runner is a daemon that connects to a Forgejo instance and runs jobs for continuous integration.