Re: header markup puzzle

[Simon Albrecht]

Hello David,

I attach a file which should do what you want, and add some comments below:

Am 09.10.2014 um 23:50 schrieb Flaming Hakama by Elaine:
> Hello,
>
> I was wondering if anyone had suggestions for a text formatting 
> challenge I've been unable to solve.
>
> The format I like to use for header markup (for pages after page 1) is 
> to have the page number centered with em dashes around it, and then 
> split the title, with half on the left and half on the right.
>
> The following code is what I am using, but I am not very happy with it.
>
> The issues I'd like to solve are:
>
>   o How do I get the left/right sides of the title to right/left align 
> next to the page number?  I am doing it with literal spaces, but this 
> is very unsatisfactory.
If you use \fill-line with three markups in its argument, the first is 
flush-left, the second is centered (at least approximately), and the 
third is flush-right.
So use the poet as one markup, the whole split-title-and-page-number 
complex as one second markup (by enclosing it in \line), and the 
composer as third argument.
>   o How do I get an actual em dash rather than use "--"?   I know that 
> the code is \char ##x2014, but I cannot figure out how to use that in 
> this header \on-the-fly context.
It’s easier anyway if you apply \on-the-fly to the entire markup as I 
did in the attached essay. And \char ##x2014 is inserted in precisely 
the same way as any other markup string.
>   o Is there a way to encapsulate this in a function, so I can just 
> say something like:
> \setSplitTitle "Example: Split" "Centered Title"
See 
<http://lilypond.org/doc/v2.18/Documentation/extending/new-markup-command-definition>. 
If you want a command which does not need to be wrapped into \markup {}, 
use #(define-scheme-function ), which should also be explained in the 
Extending Manual.

HTH,
Simon

split-centered-title.ly
Description: Text document