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.
41 lines
1.7 KiB
Racket
41 lines
1.7 KiB
Racket
9 years ago
|
#lang at-exp br
|
||
|
|
(require scribble/manual scribble/core txexpr)
|
||
|
|
(provide scribble->xexpr)
|
||
|
|
|
||
|
|
(define (style->attrs s style-accessor)
|
||
|
|
(let* ([style-datum (style-accessor s)])
|
||
|
|
(if (style? style-datum) ; either style struct, or simple symbol name
|
||
|
|
`((style ,(~a (style-name style-datum)))
|
||
|
|
(properties ,(string-join (map ~a (style-properties style-datum)) " ")))
|
||
|
|
`((style ,(~a style-datum))))))
|
||
|
|
|
||
|
|
|
||
|
|
;; Unfortunately there seems to be no generic way of fetching the style & elements from a Scribble structure
|
||
|
|
;; the specific struct accessors must be used.
|
||
|
|
(define #'structure->txexpr
|
||
|
|
(λ(stx)
|
||
|
|
(syntax-match stx
|
||
|
|
[#'(_ structure-name elem-name id)
|
||
|
|
(syntax-let ([#'structure-name-elem-name (format-id stx "~a-~a" #'structure-name #'elem-name)]
|
||
|
|
[#'structure-name-style (format-id stx "~a-style" #'structure-name)])
|
||
|
|
#'(let* ([elem-raw (structure-name-elem-name id)]
|
||
|
|
[elems (map scribble->xexpr (if (list? elem-raw)
|
||
|
|
(flatten elem-raw)
|
||
|
|
(list elem-raw)))])
|
||
|
|
(list* 'structure-name (style->attrs id structure-name-style) elems)))])))
|
||
|
|
|
||
|
|
(define (scribble->xexpr s)
|
||
|
|
(cond
|
||
|
|
[(nested-flow? s) (structure->txexpr nested-flow blocks s)]
|
||
|
|
[(paragraph? s) (structure->txexpr paragraph content s)]
|
||
|
|
[(element? s) (structure->txexpr element content s)]
|
||
|
|
[else s]))
|
||
|
|
|
||
|
|
(module+ test
|
||
|
|
(require rackunit)
|
||
|
|
(define-simple-check (check-sx? s)
|
||
|
|
(check-true (txexpr? (scribble->xexpr s))))
|
||
|
|
(check-sx? @racketblock[(list +)])
|
||
|
|
(check-sx? @racket[(list +)])
|
||
|
|
(check-sx? @code{(list +)}))
|