colon-kw
a racket lang-extension for writing :kw
for #:kw
documentation: http://pkg-build.racket-lang.org/doc/colon-kw/index.html
You can use
#lang colon-kw racket
for :kw
syntax, and
#lang kw-colon racket
for kw:
syntax.
They are compose-able as well, so you can use
#lang colon-kw kw-colon racket
to let :kw
and kw:
both work in the same file.