diff --git a/quad/qtest/markdown.rkt b/quad/qtest/markdown.rkt index 14526410..fd1361f8 100644 --- a/quad/qtest/markdown.rkt +++ b/quad/qtest/markdown.rkt @@ -275,18 +275,25 @@ [substr (in-list (regexp-match* (regexp (string hyphen-char)) hstr #:gap-select? #t))]) (struct-copy quad q [elems (list substr)]))])))) +(require sugar/list) (define (fill-wrap qs ending-q) (match-define (list line-width line-height) (quad-size q:line)) - (match (quad-ref (car qs) 'line-align #f) + ;; todo: how to detect last line of paragraph? + (match (and ending-q (pair? qs) (quad-ref (car qs) 'line-align #f)) ["justify" - (define words (for/list ([q (in-list qs)] - #:unless (equal? (car (quad-elems q)) " ")) - q)) - (define words-width (pt-x (apply pt+ (map size words)))) - (define empty-hspace (- line-width words-width)) - (define space-width (/ empty-hspace (sub1 (length words)))) - (add-between words (make-quad #:size (pt space-width line-height)))] - [_ qs])) + ;; words may still be in hyphenated fragments + ;; (though soft hyphens would have been removed) + (define word-sublists (filter-split qs (λ (q) (equal? (car (quad-elems q)) " ")))) + (match (length word-sublists) + [1 qs] ; can't justify single word + [word-count + (define words-width (for*/sum ([word-sublist (in-list word-sublists)] + [word (in-list word-sublist)]) + (pt-x (size word)))) + (define empty-hspace (- line-width words-width)) + (define space-width (/ empty-hspace (sub1 word-count))) + (apply append (add-between word-sublists (list (make-quad #:size (pt space-width line-height)))))])] + [_ qs])) (define (line-wrap qs wrap-size) (wrap qs diff --git a/quad/quad/position.rkt b/quad/quad/position.rkt index 6456426f..09c0a3b5 100644 --- a/quad/quad/position.rkt +++ b/quad/quad/position.rkt @@ -20,14 +20,14 @@ (define ascender-cache (make-hash)) (define (ascender q) - (define font-key-val (quad-ref q font-path-key "Courier")) + (define font-key-val (quad-ref q font-path-key #false)) (unless font-key-val (error 'ascender-no-font-key)) (hash-ref! ascender-cache font-key-val (λ () (font-ascent (get-font font-key-val))))) (define units-cache (make-hash)) (define (units-per-em q) - (define font-key-val (quad-ref q font-path-key "Courier")) + (define font-key-val (quad-ref q font-path-key #false)) (unless font-key-val (error 'units-per-em-no-font-key)) (hash-ref! units-cache font-key-val (λ () (font-units-per-em (get-font font-key-val))))) @@ -38,7 +38,7 @@ (define (vertical-baseline-offset q) (cond - [(quad-ref q font-path-key #f) + [(quad-ref q font-path-key #false) (* (/ (ascender q) (units-per-em q) 1.0) (fontsize q))] [else 0])) @@ -53,7 +53,9 @@ [else (raise-argument-error 'anchor->local-point (format "anchor value in ~v" valid-anchors) anchor)])) (match-define (list x y) (size q)) (pt (coerce-int (* x x-fac)) - (coerce-int (+ (* y y-fac) (if (memq anchor '(bi bo)) (vertical-baseline-offset q) 0))))) + (coerce-int (+ (* y y-fac) (match anchor + [(or 'bi 'bo) (vertical-baseline-offset q)] + [_ 0]))))) (define (inner-point q) ;; calculate absolute location of inner-point