On 26/03/2024 14:01, Maurits Lamers via LilyPond user discussion wrote:
- is there a way to get a listener or callback of some kind to capture
out-of-music markup?
- is there a way to get access to the global headers and / or score
headers (in case of score specific headers)?
- is there documentation on how to get a reference to the required
parameters for these scheme functions?
Here is an example for printing the global headers and score headers.
You can also print the global headers from the initialize translator
step of your engraver.
\version "2.24.0"
Header_export =
#(lambda (context)
(make-engraver
((initialize translator)
(ly:message "Print global headers with engraver\n")
(printheader $defaultheader))))
#(define (headerfield header field)
(if (and header (module-defined? header field))
(ly:message "header field: ~a — value: ~a \n" field (module-ref
header field))))
#(define (printheader header)
(headerfield header 'opus)
(headerfield header 'title)
(headerfield header 'piece))
\layout { \context { \Score \consists \Header_export } }
\header {
title = "Title"
opus = "Op 1"
}
myscore = \score { \header { piece = "Piece" } { c'1 } }
\myscore
#(printheader $defaultheader)
#(printheader (ly:score-header myscore))
--
Timothy Lanfear, Bristol, UK.
