emacs

color-theme-sph

a color theme in three versions: dark, light, monochrome. been happy with it for the last 10, 15 years?

sph-scheme-mode

a simpler, faster, standalone emacs mode for editing scheme with regular indentation where indent depth corresponds to nesting depth.

• syntax highlighting and indentation
• regular indentation - every nesting step is represented by the same width
• highlighting of identifiers in definitions (with different colors for variable, procedure and syntax definitions)
• srfi-62 #;() s-exp comment support
• strategic syntax highlighting for only a few keywords per default: (if q l debug-log)

versus scheme-mode (scheme.el)

• scheme-mode includes support for the dsssl-language and many additions for specific implementations
• lisp/scheme-mode indentation handling takes more than 500 lines, vs ~20 in this implementation using regular indentation
• ~600 lines to ~200
• sph-scheme-mode is much faster
• it is perhaps also a minimal example for learning how to write an emacs mode

installation

move the .el file to a location you seem fitting - the user specific configuration directory like .emacs.d/lisp perhaps, or system-wide like /usr/share/emacs/site-lisp. include it in your emacs configuration, $HOME/.emacs, with a line like (load-library "~/path-to/sph-scheme-mode.elc")"

add the following to your emacs config file

(require (quote sph-scheme-mode))

when the file has been loaded, activate with M-x

sph-scheme-mode