|
|
|
|
#lang typed/racket/base
|
|
|
|
|
(require racket/list math/flonum)
|
|
|
|
|
(require "quads-typed.rkt" "utils-typed.rkt" "wrap-typed.rkt" "measure-typed.rkt" "world-typed.rkt" "logger-typed.rkt")
|
|
|
|
|
|
|
|
|
|
(define-type Block-Type (Listof Quad))
|
|
|
|
|
(define-type Multicolumn-Type (Listof Block-Type))
|
|
|
|
|
(define-type Multipage-Type (Listof Multicolumn-Type))
|
|
|
|
|
|
|
|
|
|
(define/typed (cons-reverse xs ys)
|
|
|
|
|
(All (A B) ((Listof A) (Listof B) -> (Pairof (Listof A) (Listof B))))
|
|
|
|
|
((inst cons (Listof A) (Listof B)) ((inst reverse A) xs) ys))
|
|
|
|
|
|
|
|
|
|
(provide input->nested-blocks)
|
|
|
|
|
(define/typed (input->nested-blocks i)
|
|
|
|
|
(Quad . -> . (Listof Multipage-Type))
|
|
|
|
|
(define-values (mps mcs bs b)
|
|
|
|
|
(for/fold ([multipages : (Listof Multipage-Type) empty]
|
|
|
|
|
[multicolumns : (Listof Multicolumn-Type) empty]
|
|
|
|
|
[blocks : (Listof Block-Type) empty]
|
|
|
|
|
[block-acc : Block-Type empty])
|
|
|
|
|
([q (in-list (split-quad i))])
|
|
|
|
|
(cond
|
|
|
|
|
[(page-break? q) (values (cons-reverse (cons-reverse (cons-reverse block-acc blocks) multicolumns) multipages) empty empty empty)]
|
|
|
|
|
[(column-break? q) (values multipages (cons-reverse (cons-reverse block-acc blocks) multicolumns) empty empty)]
|
|
|
|
|
[(block-break? q) (values multipages multicolumns (cons-reverse block-acc blocks) empty)]
|
|
|
|
|
[else (values multipages multicolumns blocks (cons q block-acc))])))
|
|
|
|
|
(reverse (cons-reverse (cons-reverse ((inst cons-reverse Quad Block-Type) b bs) mcs) mps)))
|
|
|
|
|
|
|
|
|
|
(provide merge-adjacent-within)
|
|
|
|
|
(define/typed (merge-adjacent-within q)
|
|
|
|
|
(Quad . -> . Quad)
|
|
|
|
|
(quad (quad-name q) (quad-attrs q) (join-quads (cast (quad-list q) (Listof Quad)))))
|
|
|
|
|
|
|
|
|
|
(provide hyphenate-quad-except-last-word)
|
|
|
|
|
(define/typed (hyphenate-quad-except-last-word q)
|
|
|
|
|
(Quad . -> . Quad)
|
|
|
|
|
(log-quad-debug "last word will not be hyphenated")
|
|
|
|
|
(define-values (first-quads last-quad) ((inst split-last QuadListItem) (quad-list q)))
|
|
|
|
|
(quad (quad-name q) (quad-attrs q) (snoc ((inst map QuadListItem QuadListItem) hyphenate-quad first-quads) last-quad)))
|
|
|
|
|
|
|
|
|
|
(provide average-looseness)
|
|
|
|
|
(define/typed (average-looseness lines)
|
|
|
|
|
((Listof Quad) . -> . Flonum)
|
|
|
|
|
(if (<= (length lines) 1)
|
|
|
|
|
0.0
|
|
|
|
|
(let ([lines-to-measure (drop-right lines 1)]) ; exclude last line from looseness calculation
|
|
|
|
|
(round-float (/ (foldl fl+ 0.0 ((inst map Flonum Quad) (λ(line) (cast (quad-attr-ref line world:line-looseness-key 0.0) Flonum)) lines-to-measure)) (- (fl (length lines)) 1.0))))))
|
