You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
35 lines
1.3 KiB
Racket
35 lines
1.3 KiB
Racket
#lang racket/base
|
|
(require (for-syntax racket/base racket/syntax))
|
|
(provide (all-defined-out))
|
|
|
|
(struct $drawing-inst () #:transparent)
|
|
(struct $move $drawing-inst (posn) #:transparent) ; an absolute location in coordinate system (not relative to last loc)
|
|
(struct $text $drawing-inst (charint) #:transparent)
|
|
(struct $doc $drawing-inst (inst) #:transparent)
|
|
(struct $page $drawing-inst (inst) #:transparent)
|
|
|
|
(struct attr-key (name mandatory? default) #:transparent)
|
|
|
|
(define (make-attr-key name [mandatory? #false] [default #false])
|
|
(attr-key name mandatory? default))
|
|
|
|
(define-syntax (define-attr-key-types stx)
|
|
(syntax-case stx ()
|
|
[(_ ID ...)
|
|
(with-syntax ([(ATTR-ID-KEY ...) (map (λ (id-stx) (format-id stx "attr-~a-key" id-stx)) (syntax->list #'(ID ...)))]
|
|
[(MAKE-ATTR-ID-KEY ...) (map (λ (id-stx) (format-id stx "make-attr-~a-key" id-stx)) (syntax->list #'(ID ...)))])
|
|
#'(begin
|
|
(begin
|
|
(struct ATTR-ID-KEY attr-key () #:transparent)
|
|
(define (MAKE-ATTR-ID-KEY name [mandatory #false] [default #false])
|
|
(ATTR-ID-KEY name mandatory default))) ...))]))
|
|
|
|
;; for type X, creates struct called attr-X-key
|
|
(define-attr-key-types
|
|
uncased-string
|
|
cased-string
|
|
dimension-string
|
|
path
|
|
numeric
|
|
boolean
|
|
unknown) |