This repository contains `clojure-mode`, an Emacs major mode for editing Clojure, ClojureScript, and related languages. The system provides syntax highlighting (font-lock), indentation, navigation, and a suite of refactoring commands directly in the editor. The architecture is a single large Emacs Lisp file (`clojure-mode.el`) with an additional extra font-locking package. It defines a base `clojure-mode` derived from `prog-mode`, plus derived modes for ClojureScript, ClojureC, ClojureDart, Joker, Jank, and EDN data files. Key entry points are the mode activation functions and interactive commands like `clojure-align`, `clojure-thread`, `clojure-cycle-privacy`, etc. The indentation engine uses a backtracking algorithm that walks up the sexp tree to apply contextual indent specs (shared with `clojure-ts-mode`). Font-locking is regex-based and extensible, with special handling for docstrings, discard macros, and character literals. The package depends only on standard Emacs libraries (`cl-lib`, `imenu`, `align`, `subr-x`) and requires Emacs 27.1+.
org-modern is an Emacs Lisp package that provides a modern visual style for Org mode buffers. It uses font-lock keywords and text properties to prettify headlines, tables, source blocks, timestamps, tags, TODO keywords, priorities, checkboxes, lists, progress bars, footnotes, internal/radio targets, horizontal rules, block names, and block fringes. The package is implemented as a single-file minor mode (`org-modern-mode`) with a global variant (`global-org-modern-mode`) and an agenda styling function (`org-modern-agenda`). It relies on Emacs 29.1, Org 9.6, and the Compat library. The code is well-structured, extensively customizable via defcustom options, and follows modern Emacs Lisp conventions. It does not contain reusable components outside the Org mode context, but the implementation demonstrates high craftsmanship in leveraging Emacs' font-lock and text property systems for UI styling.