+(define (ps-quote str)
+ (fold
+ (lambda (replacement-list result)
+ (string-join
+ (string-split
+ result
+ (car replacement-list))
+ (cadr replacement-list)))
+ str
+ '((#\\ "\\\\") (#\( "\\(") (#\) "\\)"))))
+
+;;; Create DOCINFO pdfmark containing metadata
+;;; header fields with pdf prefix override those without the prefix
+(define (handle-metadata header port)
+ (define (metadata-encode val)
+ ;; First, call ly:encode-string-for-pdf to encode the string (latin1 or
+ ;; utf-16be), then escape all parentheses and backslashes
+ ;; FIXME guile-2.0: use (string->utf16 str 'big) instead
+
+ (ps-quote (ly:encode-string-for-pdf val)))
+ (define (metadata-lookup-output overridevar fallbackvar field)
+ (let* ((overrideval (ly:modules-lookup (list header) overridevar))
+ (fallbackval (ly:modules-lookup (list header) fallbackvar))
+ (val (if overrideval overrideval fallbackval)))
+ (if val
+ (format port "/~a (~a)\n" field (metadata-encode (markup->string val (list header)))))))
+ (display "[ " port)
+ (metadata-lookup-output 'pdfcomposer 'composer "Author")
+ (format port "/Creator (LilyPond ~a)\n" (lilypond-version))
+ (metadata-lookup-output 'pdftitle 'title "Title")
+ (metadata-lookup-output 'pdfsubject 'subject "Subject")
+ (metadata-lookup-output 'pdfkeywords 'keywords "Keywords")
+ (metadata-lookup-output 'pdfmodDate 'modDate "ModDate")
+ (metadata-lookup-output 'pdfsubtitle 'subtitle "Subtitle")
+ (metadata-lookup-output 'pdfcomposer 'composer "Composer")
+ (metadata-lookup-output 'pdfarranger 'arranger "Arranger")
+ (metadata-lookup-output 'pdfpoet 'poet "Poet")
+ (metadata-lookup-output 'pdfcopyright 'copyright "Copyright")
+ (display "/DOCINFO pdfmark\n\n" port))
+
+