A problem with the svg backend

[Richard Shann]

If I use markup and include a \with-url that contains embedded quotes
the svg generated is invalid. Here is a simple example.


\version "2.19.25"

\score {
          <<
  {   c d  -\markup { \with-url  #'"\"some quotes\"" hello} e f
  }
          >>
       }

this is a nonsensical example, the real use-case involves links that
pass scheme code back.

For my purposes it would be good enough just to disable the whole
construct, I've tried defining with-url at the top of the file via

with-url = {}

with-url = \displayScheme

with-url = \void

but none of these prevent the trouble. Any suggestions?

Richard