Re: Function operating on header

[Timothy Lanfear]

On 14/03/2020 19:14, Noeck wrote:
> So I did another try and used the footer markup, but I can't use
> fromproperty in Scheme code. This is what I tried:
>
> \version "2.20.0"
>
> \header { title = "Title" }
> \paper {
>    oddFooterMarkup = \markup \fill-line {
>      \null
>      #(if
>        (string-null? (markup->string #{
>          \markup \fromproperty 'header:license #}))
>        #{ \markup \with-url
>           #(string-append "http://url/"; (markup->string #{
>             \markup \fromproperty 'header:license #}) "/4.0")
>           \fromproperty 'header:license #} "")
>      % the lines above should finally produce this if license is defined:
>      % \with-url "http://url/cc by-sa/4.0" "cc by-sa"
>      \null
>    }
> }
>
> \header {
>    license = "cc by-sa"
> }
>
> { b }
>
> Cheers,
> Joram
You just forgot a # before 'header:license

\markup \fromproperty #'header:license


--
Timothy Lanfear, Bristol, UK.