boernel/lilypond-common-includes
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Support multiple alternative titles in headerToTOC function

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This update allows the alttitle header field to accept a list of alternative titles instead of a single value. Each title in the list is processed and added to the table of contents as an alternative title, enhancing flexibility and usability.
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žuk 2025-03-03 16:57:05 +04:00
parent f0f4b0c180
commit a61becaf5e
1 changed files with 7 additions and 4 deletions
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11
toc_include.ly
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@ -286,11 +286,10 @@ headerToTOC = #(define-music-function (parser location header label) (ly:book? s
))
(let*
(
(extractedheadervars (extract-and-check-vars-from-header header '(title starttext alttitle altalttitle categorytitle categories authors)))
(extractedheadervars (extract-and-check-vars-from-header header '(title starttext alttitle categorytitle categories authors)))
(title (assq-ref extractedheadervars 'title))
(starttext (assq-ref extractedheadervars 'starttext))
(alttitle (assq-ref extractedheadervars 'alttitle))
(altalttitle (assq-ref extractedheadervars 'altalttitle))
(categorytitle (assq-ref extractedheadervars 'categorytitle))
(categories (assq-ref extractedheadervars 'categories))
(authors (assq-ref extractedheadervars 'authors))
@ -300,8 +299,12 @@ headerToTOC = #(define-music-function (parser location header label) (ly:book? s
(if categories (add-category-index-item! (string-tokenize categories) 'indexItemMarkup (cons (list (cons 'rawtext (if categorytitle categorytitle title))) '()) label))
(if authors (add-author-index-item! (all-author-ids authors) 'indexItemMarkup (cons (list (cons 'rawtext (if categorytitle categorytitle title))) '()) label))
(if starttext (add-to-toc! starttext (cons (list (cons 'rawtext starttext) (cons 'alternative #t)) '())))
(if alttitle (add-to-toc! alttitle (cons (list (cons 'rawtext alttitle) (cons 'alternative #t)) '())))
(if altalttitle (add-to-toc! altalttitle (cons (list (cons 'rawtext altalttitle) (cons 'alternative #t)) '())))
(if alttitle
(if (list? alttitle)
(for-each (lambda (alt)
(add-to-toc! alt (cons (list (cons 'rawtext alt) (cons 'alternative #t)) '())))
alttitle)
(add-to-toc! alttitle (cons (list (cons 'rawtext alttitle) (cons 'alternative #t)) '()))))
(if title (add-to-toc! title (cons (list (cons 'rawtext title)) '())) #{ #})
))