On 2019-12-14 6:16 am, Paolo Prete wrote:
However, how can I make it work for multiple pages output?
Another approach would be to modify how LilyPond generates SVG output,
so that the script in question is inserted just before the closing
</svg> element:
%%%%
\version "2.19.83"
svg-script = #(define-void-function (body) (string?)
(let* ((mod (resolve-module '(scm framework-svg)))
(svg-end (module-ref mod 'svg-end #f)))
(if (procedure? svg-end)
(module-define! mod 'svg-end (lambda () (string-join
(list "<script type=\"text/javascript\"><![CDATA["
body "]]></script>" (svg-end)) "\n"))))))
\svg-script #"// TODO: Insert script here."
%%%%
This is improved in that no \markup is required. This injection of
content happens at a point after LilyPond has processed each page of
music, so there are no unintended side-effects to the layout.
However, the above kludge modifies an undocumented, underlying
mechanism. As such, this would be a case of "just because you can does
not necessarily mean you should".
As has been suggested, perhaps the best option would be to post-process
the SVG output from outside LilyPond.
-- Aaron Hill
