racket/pkgs/racket-doc/scribblings/guide/literal-main-language-info.rkt

32 lines
876 B
Racket

#lang racket
(module reader racket
(require syntax/strip-context)
(provide (rename-out [literal-read read]
[literal-read-syntax read-syntax])
get-info)
(define (literal-read in)
(syntax->datum
(literal-read-syntax #f in)))
(define (literal-read-syntax src in)
(with-syntax ([str (port->string in)])
(strip-context
#'(module anything racket
(module configure-runtime racket
(require literal/show)
(show-enabled #t))
(require literal/show)
(provide data)
(define data 'str)
(show data)))))
(define (get-info in mod line col pos)
(lambda (key default)
(case key
[(color-lexer)
(dynamic-require 'syntax-color/default-lexer
'default-lexer)]
[else default]))))