Hi Steven,
On Tue, Apr 28, 2015 at 5:40 PM, Steven Weber <pant...@hotmail.com> wrote:
> I finally managed to hack together highlighting code for key signatures
> that does what I want (ignores the initial key signature, and only
> highlights key signatures at the beginning of the line if it was broken
> across the line).
>
But what about the break at measure 14? (I like the highlighting of both.)
>
>
> But, my code feels…inelegant. In particular, I’m using a global variable
>
Why not move the binding into the let-block of the engraver? A cursory
look isn't showing any reason for a global variable, and making it local
works with your example.
> and I had to define my own alist equality function because I couldn’t find
> one with google. Can one of you Scheme gods take a look at what I’m doing
> and see if there’s anything obvious I could be doing better?
>
You write:
#(define (alist-equal? l r)
(cond
;; Both items are null - this is equal
((and (null? l) (null? r)) #t)
;; Left is null and right isn't is not equal
((and (null? l) (not (null? r))) #f)
;; Left is not null and right is is not equal
((and (not (null? l)) (null? r)) #f)
;; Check for equality of the items
((not (equal? (car l) (car r))) #f)
;; Recurse to the next item
(else (alist-equal? (cdr l) (cdr r)))))
Why not just:
#(define (alist-equal? l r)
(equal? l r))
>
> And apologies for the formatting. Scheme and I do not get along.
> Counting parens drives me crazy, so I format it like I do any other
> language that uses braces instead of parens (expect lots and lots of extra
> white space!)
>
>
>
Frescobaldi highlights matching parentheses, and it will automatically
indent for you. OK, well, the default reduces your whitespace
dramatically, but weigh that against super-long lines! Possibly you can
configure the indent.
HTH,
David.
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