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## Re: Creating books with Scheme

 From: Nicolas Sceaux Subject: Re: Creating books with Scheme Date: Mon, 17 Aug 2009 09:23:03 +0200

```Le 17 août 09 à 02:41, Reinhold Kainhofer a écrit :

```
Hmm, to me it seems that you are effectively calling the parser to interpret \include "file.ly". That is a nice way around my problem, where only the parser seems to have a pointer to the current book (so you are invoking the parser to
```insert the scores into the bookpart), but it can't be used in my case.

```
My problem is that I don't have the score in a file in lilypond syntax at all. I have only the notes of the individual instruments, but the whole score (containing part-combined staves, etc.) is really generated on-the- fly in
```scheme.
```
```
If you look at the definition of `bookpart-score-handler' in my
file, you see that the book-part argument is not used. Instead,
all scores are added to the toplevel-scores parser variable (even
though they are not really toplevel, it does not matter).
The `toplevel-bookpart-handler' then uses this variable to actually
add the scores to the bookpart. This function is called by the parser
when a \bookpart block is closed, so at this point the bookpart object
is known.

You can change the book-score-handler and toplevel-book-handler to
act the same way.

Do you also create books on the fly?

Nicolas

```