On Wed, 2016-12-21 at 14:48 +0000, Timothy Lanfear wrote:
> On 21/12/16 10:16, David Sumbler wrote:
> >
> > Thanks for that solution. It is helpful to know that I can get
> > things
> > to work in this way. However, I do wish I understood why this
> > works
> > and my version doesn't - bearing in mind that my version does work
> > until I introduce /bookpart, yet the error messages produced by
> > Lilypond don't obviously relate to that.
> >
> > What is also curious is this. I understand that introducing Scheme
> > code with '#' or '$' affects at what point the code is run. Your
> > version works in both cases. My version works in neither case,
> > although only the '$' version produces the error messages. Using
> > the
> > '#' version there are no errors apparently, but still no output
> > file is
> > produced.
> >
> > Molto misterioso!
> >
> > David
> >
> After a little experimentation, if appears that a default paper
> definition is not being created, which can fixed by adding an
> explicit
> \paper statement in testprint.ily.
>
> \version "2.19.48"
>
> \language "english"
>
> printScore = ##t
> printMvtOne = ##t
> printMvtTwo = ##t
>
> $(if
> (and printScore
> (or printMvtOne printMvtTwo))
> #{ \include "testprint.ily" #} )
>
> %%%%%%%%%%%%%%%%%%%
>
> \version "2.19.48"
>
> \book {
> \bookpart {
> \paper {}
> \score { c'' }
> }
> }
Remarkable.
Yes, my original test file (which is more complex than the abbreviated version
I sent to the list) works fine now, so long as I include a \paper block in each
\bookpart. And the Scheme block does, as I already understood, have to be
introduced with '$' and not '#'.
Incidentally, the \book which contains the \bookpart blocks already has a
\paper block with various custom settings. These settings are correctly
observed within the \bookparts.
Strange that a specific \paper { } has to be included here, when it is not
required if the file is included with a straight \include instruction. This
appears to be a bug, but perhaps it isn't - I don't understand the internal
workings of these things well enough to know.
Incidentally, before anyone asks me why I need to have bookparts at all, let me
say that there will be some different \paper settings in my various bookparts.
Since I couldn't get the included file to compile correctly I had not bothered
to add these settings yet - after all, it wasn't exactly obvious to me that the
absence of a \paper block could be the cause of the failure.
Thanks for all your help.
David
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