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improve rendering of titles with empty numbers

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Matthew Flatt 2016-08-13 12:45:50 -06:00
parent 495630e001
commit 3e1c63c93a
1 changed files with 35 additions and 30 deletions
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65
scribble-lib/scribble/base-render.rkt
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@ -72,36 +72,41 @@
#f)
(define/public (format-number number sep [keep-separator? #f])
(if (or (null? number)
(andmap (lambda (x) (or (not x) (equal? x "")))
number)
(and (not (car number))
(not (ormap number? number))))
null
(cons (let ([s (string-append
(apply
string-append
(map (lambda (n)
(cond
[(number? n) (format "~a." n)]
[(or (not n) (string? n)) ""]
[(pair? n) (string-append (car n) (cadr n))]))
(reverse (cdr number))))
(if (and (car number)
(not (equal? "" (car number))))
(if (pair? (car number))
(if keep-separator?
(string-append (caar number)
(cadar number))
(caar number))
(format "~a." (car number)))
""))])
(if (or keep-separator?
(pair? (car number))
(equal? s ""))
s
(substring s 0 (sub1 (string-length s)))))
sep)))
(cond
[(or (null? number)
(andmap (lambda (x) (or (not x) (equal? x "")))
number)
(and (not (car number))
(not (ormap number? number))))
null]
[else
(define result-s
(let ([s (string-append
(apply
string-append
(map (lambda (n)
(cond
[(number? n) (format "~a." n)]
[(or (not n) (string? n)) ""]
[(pair? n) (string-append (car n) (cadr n))]))
(reverse (cdr number))))
(if (and (car number)
(not (equal? "" (car number))))
(if (pair? (car number))
(if keep-separator?
(string-append (caar number)
(cadar number))
(caar number))
(format "~a." (car number)))
""))])
(if (or keep-separator?
(pair? (car number))
(equal? s ""))
s
(substring s 0 (sub1 (string-length s))))))
(if (equal? result-s "")
null
(cons result-s sep))]))
(define/public (number-depth number)
(if (null? number)