+(define (procset file-name)
+ (string-append
+ (format
+ "%%BeginResource: procset (~a) 1 0
+~a
+%%EndResource
+"
+ file-name (cached-file-contents file-name))))
+
+(define (setup paper)
+ (string-append
+ "\n"
+ "%%BeginSetup\n"
+ (define-fonts paper)
+ (output-variables paper)
+ "%%EndSetup\n"))
+
+(define-public (munge-lily-font-name name)
+ ;; FIXME: this fixes PFAPAFemmentaler.pfapfa, and also
+ ;; PFAaybabtu.otf.pfa, but the second case now produces aybabtu.otf,
+ ;; which still fails because .otf files cannot be embedded.
+ (regexp-substitute/global #f "^([eE]mmentaler|[aA]ybabtu)"
+ name 'pre "PFA" 1 'post))
+
+(define (cff-font? font)
+ (let*
+ ((cff-string (ly:otf-font-table-data font "CFF ")))
+ (> (string-length cff-string) 0)))
+
+(define-public (ps-embed-cff body font-set-name version)
+ (let* ((binary-data
+ (string-append
+ (format "/~a ~s StartData " font-set-name (string-length body))
+ body))
+
+ (header
+ (format
+ "%%BeginResource: font ~a
+%!PS-Adobe-3.0 Resource-FontSet
+%%DocumentNeededResources: ProcSet (FontSetInit)
+%%Title: (FontSet/~a)
+%%Version: ~s
+%%EndComments
+%%IncludeResource: ProcSet (FontSetInit)
+%%BeginResource: FontSet (~a)
+/FontSetInit /ProcSet findresource begin
+%%BeginData: ~s Binary Bytes
+"
+ font-set-name font-set-name version font-set-name
+ (string-length binary-data)))
+ (footer "\n%%EndData
+%%EndResource
+%%EOF
+%%EndResource\n"))
+
+ (string-append
+ header
+ binary-data
+ footer)))
+
+
+(define (write-preamble paper load-fonts? port)
+
+ (define (load-font-via-GS font-name-filename)
+ (define (ps-load-file name)
+ (format
+ (if (string? name)
+ "(~a) (r) file .loadfont\n"
+ "% can't find font file: ~a\n")
+ name))
+
+ (let* ((font (car font-name-filename))
+ (name (cadr font-name-filename))
+ (file-name (caddr font-name-filename))
+ (bare-file-name (ly:find-file file-name)))
+
+ (cons
+ (munge-lily-font-name name)
+ (cond
+ ((string-match "^([eE]mmentaler|[Aa]ybabtu)" file-name)
+ (ps-load-file (ly:find-file
+ (format "~a.pfa" (munge-lily-font-name file-name)))))
+ ((string? bare-file-name)
+ (ps-load-file (munge-lily-font-name file-name)))
+ (else
+ (ly:warning (_ "can't embed ~S=~S") name file-name)
+ "")))))
+
+ (define (dir-join a b)
+ (if (equal? a "")
+ b
+ (string-append a "/" b)))
+
+ (define (dir-listing dir-name)
+ (define (dir-helper dir lst)
+ (let ((e (readdir dir)))
+ (if (eof-object? e) lst (dir-helper dir (cons e lst)))))
+ (reverse (dir-helper (opendir dir-name) '())))
+
+ (define (handle-mac-font name filename)
+ (let*
+ ((dir-name (tmpnam))
+ (files '())
+ (status 0)
+ (embed #f))
+
+
+ (mkdir dir-name #o700)
+
+ (set! status (ly:system
+ (format "cd ~a && fondu -force '~a'" dir-name filename)))
+
+ (set! files (dir-listing dir-name))
+
+ (for-each
+ (lambda (f)
+ (if (and (not embed)
+ (string-match (string-append name "\\.") f))
+ (set! embed
+ (font-file-as-ps-string name (dir-join dir-name f))))
+
+ (if (or (equal? "." f)
+ (equal? ".." f))
+ #t
+ (delete-file (dir-join dir-name f))))
+ files)
+ (rmdir dir-name)
+
+ (if (not embed)
+ (begin
+ (set! embed "% failed \n")
+ (ly:warning (_ "can't extract file matching ~a from ~a") name filename)))
+ embed))
+
+ (define (font-file-as-ps-string name file-name)
+ (let*
+ ((downcase-file-name (string-downcase file-name)))
+
+ (cond
+ ((and file-name (string-match "\\.pfa" downcase-file-name))
+ (cached-file-contents file-name))
+ ((and file-name (string-match "\\.pfb" downcase-file-name))
+ (ly:pfb->pfa file-name))
+ ((and file-name (string-match "\\.ttf" downcase-file-name))
+ (ly:ttf->pfa file-name))
+ ((and file-name (string-match "\\.otf" downcase-file-name))
+ (ps-embed-cff (ly:otf->cff file-name) name 0))
+ (else
+ (ly:warning (_ "don't know how to embed ~S=~S") name file-name)
+ ""))))
+
+ (define (load-font font-name-filename)
+ (let* ((font (car font-name-filename))
+ (name (cadr font-name-filename))
+ (file-name (caddr font-name-filename))
+ (bare-file-name (ly:find-file file-name)))
+
+ (cons
+ (munge-lily-font-name name)
+ (cond
+ ((string-match "^([eE]mmentaler|[Aa]ybabtu)" file-name)
+ (cached-file-contents
+ (format "~a.pfa" (munge-lily-font-name file-name))))
+ ((and
+ (eq? PLATFORM 'darwin)
+ bare-file-name (string-match "\\.dfont" bare-file-name))
+ (handle-mac-font name bare-file-name))
+
+ ((and
+ (eq? PLATFORM 'darwin)
+ bare-file-name (= (stat:size (stat bare-file-name)) 0))
+ (handle-mac-font name bare-file-name))
+
+ ((and font (cff-font? font))
+ (ps-embed-cff (ly:otf-font-table-data font "CFF ")
+ name
+ 0))
+
+ (bare-file-name (font-file-as-ps-string name bare-file-name))
+ (else
+ (ly:warning (_ "don't know how to embed font ~s ~s ~s")
+ name file-name font))))))
+
+