3 #(use-modules (scm graphviz))
5 #(define last-grob-action '())
10 #(define sym-whitelist
13 #(define file-line-blacklist
16 #(define file-line-whitelist
19 #(define (whitelist-symbol sym)
20 (set! sym-whitelist (cons sym sym-whitelist)))
22 #(define graph (make-graph "graph.dot"))
24 % an event is relevant if
25 % (it is on some whitelist or all whitelists are empty)
27 % (it isn't on any blacklist)
29 #(define (relevant? grob file line prop)
30 (let ((file-line `(,file . ,line)))
33 (= 0 (length file-line-whitelist) (length sym-whitelist))
34 (memq prop sym-whitelist)
35 (member file-line file-line-whitelist))
37 (not (memq prop sym-blacklist))
38 (not (member file-line file-line-blacklist))))))
40 #(define (grob-mod grob file line func prop val)
41 (let* ((prev (assv grob last-grob-action))
42 (val-str0 (format "~a" val))
43 (val-str (string-take val-str0 (min 50 (string-length val-str0))))
44 (label (format "~a\\n~a:~a\\n~a <- ~a" grob file line prop val-str)))
45 (if (relevant? grob file line prop)
46 (let ((node-id (add-node graph label file)))
48 (add-edge graph (cdr prev) node-id))
49 (set! last-grob-action (assv-set! last-grob-action grob node-id))))))
51 #(define (grob-create grob file line func)
52 (let* ((label (format "~a\\n~a:~a" grob file line))
53 (node-id (add-node graph label file)))
54 (set! last-grob-action (assv-set! last-grob-action grob node-id))))
56 #(ly:set-grob-modification-callback grob-mod)
57 %#(ly:set-grob-creation-callback grob-create)