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emacs-sly

Sylvester the Cat's Common Lisp IDE

SLY is Sylvester the Cat's Common Lisp IDE. SLY is a fork of SLIME, and contains the following improvements over it:

  1. A full-featured REPL based on Emacs's comint.el. Everything can be copied to the REPL;

  2. Stickers, or live code annotations that record values as code traverses them.

  3. Flex-style completion out-of-the-box, using Emacs's completion API. Company, Helm, and other supported natively, no plugin required;

  4. An interactive Trace Dialog;

  5. Multiple inspectors and multiple REPLs, with independent history.

  6. Regexp-capable M-x sly-apropos.

  7. Cleanly ASDF-loaded by default, including contribs, enabled out-of-the-box;

  8. "Presentations" replaced by interactive backreferences, which highlight the object and remain stable throughout the REPL session;

SLY tracks SLIME's bugfixes and all its familiar features (debugger, inspector, xref, etc.) are still available, but with better integration.

Installation

Install the latest version of emacs-sly as follows:

guix install emacs-sly

Or install a particular version:

guix install emacs-sly@1.0.43-9.9c43bf6

You can also install packages in augmented, pure or containerized environments for development or simply to try them out without polluting your user profile. See the guix shell documentation for more information.

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[![Version in GNU Guix](https://packages.guix.gnu.org/packages/emacs-sly/badges/latest-version.svg)](https://packages.guix.gnu.org/packages/emacs-sly)

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