+(define output-dir #f)
+
+(define (svg-define-font font font-name scaling)
+ (let* ((base-file-name (basename (if (list? font) (pango-pf-file-name font)
+ (ly:font-file-name font)) ".otf"))
+ (woff-file-name (string-regexp-substitute "([.]otf)?$" ".woff"
+ base-file-name))
+ (woff-file (or (ly:find-file woff-file-name) "/no-such-file.woff"))
+ (url (string-append output-dir "/fonts/" (lilypond-version) "/"
+ (basename woff-file-name)))
+ (lower-name (string-downcase font-name)))
+ (if (file-exists? woff-file)
+ (begin
+ (if (not (file-exists? url))
+ (begin
+ (ly:message (_ "Updating font into: ~a") url)
+ (mkdirs (string-append output-dir "/" (dirname url)) #o700)
+ (copy-file woff-file url)
+ (ly:progress "\n")))
+ (ly:format
+ "@font-face {
+font-family: '~a';
+font-weight: normal;
+font-style: normal;
+src: url('~a');
+}
+"
+ font-name url))
+ "")))
+
+(define (woff-header paper dir)
+ "TODO:
+ * add (ly:version) to font name
+ * copy woff font with version alongside svg output
+"
+ (set! output-dir dir)
+ (string-append
+ (eo 'defs)
+ (eo 'style '(text . "style/css"))
+ "<![CDATA[
+"
+ (define-fonts paper svg-define-font svg-define-font)
+ "]]>
+"
+ (ec 'style)
+ (ec 'defs)))
+
+(define (dump-page paper filename page page-number page-count)
+ (let* ((outputter (ly:make-paper-outputter (open-file filename "wb") 'svg))
+ (dump (lambda (str) (display str (ly:outputter-port outputter))))
+ (lookup (lambda (x) (ly:output-def-lookup paper x)))
+ (unit-length (lookup 'output-scale))
+ (output-scale (* lily-unit->mm-factor unit-length))
+ (device-width (lookup 'paper-width))
+ (device-height (lookup 'paper-height))
+ (page-width (* output-scale device-width))
+ (page-height (* output-scale device-height)))
+
+ (if (ly:get-option 'svg-woff)
+ (module-define! (ly:outputter-module outputter) 'paper paper))
+ (dump (svg-begin page-width page-height
+ 0 0 device-width device-height))
+ (if (ly:get-option 'svg-woff)
+ (module-remove! (ly:outputter-module outputter) 'paper))
+ (if (ly:get-option 'svg-woff)
+ (dump (woff-header paper (dirname filename))))
+ (dump (comment (format #f "Page: ~S/~S" page-number page-count)))