dev-srcloc
Matthew Butterick 8 years ago
parent 3d8f7f2ded
commit 330d822f9f

@ -79,6 +79,15 @@
[(_ OPEN CLOSE)
#'(:seq OPEN (complement (:seq any-string CLOSE any-string)) CLOSE)])))
(provide uc+lc)
(define-lex-trans uc+lc
(λ(stx)
(syntax-case stx ()
[(_ . STRS)
(with-syntax ([(UCSTR ...) (map (compose1 string-upcase syntax->datum) (syntax->list #'STRS))]
[(LCSTR ...) (map (compose1 string-downcase syntax->datum) (syntax->list #'STRS))])
#'(union (union UCSTR ...) (union LCSTR ...)))])))
;; change names of lexer abbreviations to be consistent with Racket srcloc conventions
(define-syntax-rule (dprt ID-IN ID-OUT)

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