1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 2004--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
5 ;;;; LilyPond is free software: you can redistribute it and/or modify
6 ;;;; it under the terms of the GNU General Public License as published by
7 ;;;; the Free Software Foundation, either version 3 of the License, or
8 ;;;; (at your option) any later version.
10 ;;;; LilyPond is distributed in the hope that it will be useful,
11 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ;;;; GNU General Public License for more details.
15 ;;;; You should have received a copy of the GNU General Public License
16 ;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
18 (define-module (scm framework-ps))
20 ;;; this is still too big a mess.
22 (use-modules (ice-9 string-fun)
31 (define format ergonomic-simple-format)
33 (define framework-ps-module (current-module))
35 ;;(define pdebug stderr)
36 (define (pdebug . rest) #f)
38 (define-public (ps-font-command font)
39 (let* ((name (ly:font-file-name font))
40 (magnify (ly:font-magnification font)))
49 "m" (string-encode-integer (inexact->exact (round (* 1000 magnify)))))))
51 (define (ps-define-pango-pf pango-pf font-name scaling)
54 (define (ps-define-font font font-name scaling)
57 "/" (ps-font-command font) "-N"
59 " " (ly:number->string scaling) " output-scale div selectfont }"
61 "/" (ps-font-command font) "-S"
63 " " (ly:number->string scaling) " output-scale div selectfont }"
65 "/" (ps-font-command font) "-O"
67 " " (ly:number->string scaling) " output-scale div selectfont }"
69 "/help" font-name " {\n gsave\n 1 setgray\n /"
71 " 0.001 selectfont 0 0 moveto <01> show\n /"
73 " 0.001 selectfont 0 0 moveto <01> show\n /"
75 " 0.001 selectfont 0 0 moveto <01> show\n grestore\n} def\n")
77 "/" (ps-font-command font)
79 " " (ly:number->string scaling) " output-scale div selectfont }"
82 ;; FIXME: duplicated in other output backends
83 ;; FIXME: silly interface name
84 (define (output-variables layout)
85 ;; FIXME: duplicates output-layout's scope-entry->string, mostly
86 (define (value->string val)
88 ((string? val) (string-append "(" val ")"))
89 ((symbol? val) (symbol->string val))
90 ((number? val) (number->string val))
93 (define (output-entry ps-key ly-key)
96 (value->string (ly:output-def-lookup layout ly-key)) " def\n"))
100 (number->string (/ (ly:bp 1))) " def %% millimeter\n"
101 (output-entry "staff-line-thickness" 'line-thickness)
102 (output-entry "line-width" 'line-width)
103 (output-entry "paper-size" 'papersizename)
104 (output-entry "staff-height" 'staff-height) ;junkme.
106 (number->string (ly:output-def-lookup layout 'output-scale)) " def\n"
107 (output-entry "page-height" 'paper-height)
108 (output-entry "page-width" 'paper-width)
109 (if (ly:get-option 'strokeadjust) "true setstrokeadjust\n" "")
112 (define (dump-page outputter page page-number page-count landscape?)
113 (ly:outputter-dump-string
116 (format #f "%%Page: ~a ~a\n" page-number page-number)
119 "page-width output-scale lily-output-units mul mul 0 translate 90 rotate\n"
123 "gsave 0 paper-height translate set-ps-scale-to-lily-scale\n"
124 "/helpEmmentaler-Brace where {pop helpEmmentaler-Brace} if\n"
125 "/helpEmmentaler-11 where {pop helpEmmentaler-11} if\n"
126 "/helpEmmentaler-13 where {pop helpEmmentaler-13} if\n"
127 "/helpEmmentaler-14 where {pop helpEmmentaler-14} if\n"
128 "/helpEmmentaler-16 where {pop helpEmmentaler-16} if\n"
129 "/helpEmmentaler-18 where {pop helpEmmentaler-18} if\n"
130 "/helpEmmentaler-20 where {pop helpEmmentaler-20} if\n"
131 "/helpEmmentaler-23 where {pop helpEmmentaler-23} if\n"
132 "/helpEmmentaler-26 where {pop helpEmmentaler-26} if\n"))
133 (ly:outputter-dump-stencil outputter page)
134 (ly:outputter-dump-string outputter "stroke grestore\nshowpage\n"))
136 (define (supplies-or-needs paper load-fonts?)
137 (define (extract-names font)
138 (if (ly:pango-font? font)
139 (map car (ly:pango-font-physical-fonts font))
140 (list (ly:font-name font))))
142 (let* ((fonts (ly:paper-fonts paper))
143 (names (append-map extract-names fonts)))
148 "%%DocumentSuppliedResources: font ~a\n"
149 "%%DocumentNeededResources: font ~a\n")
151 (uniq-list (sort names string<?))))))
153 (define (eps-header paper bbox load-fonts?)
154 (string-append "%!PS-Adobe-2.0 EPSF-2.0\n"
155 "%%Creator: LilyPond " (lilypond-version) "\n"
157 (string-join (map ly:number->string bbox) " ") "\n"
159 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
162 (supplies-or-needs paper load-fonts?)
165 (define (ps-document-media paper)
167 (ly:output-def-lookup paper 'output-scale)
168 (ly:output-def-lookup paper 'paper-width)) (ly:bp 1)))
170 (ly:output-def-lookup paper 'paper-height)
171 (ly:output-def-lookup paper 'output-scale))
173 (landscape? (eq? (ly:output-def-lookup paper 'landscape) #t)))
174 (ly:format "%%DocumentMedia: ~a ~2f ~2f ~a ~a ~a\n"
175 (ly:output-def-lookup paper 'papersizename)
183 (define (file-header paper page-count load-fonts?)
184 (string-append "%!PS-Adobe-3.0\n"
185 "%%Creator: LilyPond " (lilypond-version) "\n"
186 "%%Pages: " (number->string page-count) "\n"
187 "%%PageOrder: Ascend\n"
189 (if (eq? (ly:output-def-lookup paper 'landscape) #t)
192 (ps-document-media paper)
193 (supplies-or-needs paper load-fonts?)
196 (define (procset file-name)
198 "%%BeginResource: procset (~a) 1 0
202 file-name (cached-file-contents file-name)))
204 (define (embed-document file-name)
205 (format #f "%%BeginDocument: ~a
209 file-name (cached-file-contents file-name)))
211 (define (setup-variables paper)
214 (define-fonts paper ps-define-font ps-define-pango-pf)
215 (output-variables paper)))
217 (define (cff-font? font)
218 (let* ((cff-string (ly:otf-font-table-data font "CFF ")))
219 (> (string-length cff-string) 0)))
221 (define-public (ps-embed-cff body font-set-name version)
224 (format #f "/~a ~s StartData " font-set-name (string-length body))
228 "%%BeginResource: font ~a
229 %!PS-Adobe-3.0 Resource-FontSet
230 %%DocumentNeededResources: ProcSet (FontSetInit)
231 %%Title: (FontSet/~a)
234 %%IncludeResource: ProcSet (FontSetInit)
235 %%BeginResource: FontSet (~a)
236 /FontSetInit /ProcSet findresource begin
237 %%BeginData: ~s Binary Bytes
239 font-set-name font-set-name version font-set-name
240 (string-length binary-data)))
244 (string-append header
248 (define (write-preamble paper load-fonts? port)
249 (define (internal-font? font-name-filename)
250 (let* ((font (car font-name-filename))
251 (file-name (caddr font-name-filename))
252 (font-file-name (ly:find-file (format #f "~a.otf" file-name))))
256 (string-contains font-file-name
257 (ly:get-option 'datadir)))))
259 (define (load-font-via-GS font-name-filename)
260 (define (ps-load-file file-name)
261 (if (string? file-name)
262 (if (string-contains file-name (ly:get-option 'datadir))
264 (set! file-name (ly:string-substitute (ly:get-option 'datadir)
267 "lilypond-datadir (~a) concatstrings (r) file .loadfont\n"
269 (format #f "(~a) (r) file .loadfont\n" file-name))
270 (format #f "% cannot find font file: ~a\n" file-name)))
272 (let* ((font (car font-name-filename))
273 (name (cadr font-name-filename))
274 (file-name (caddr font-name-filename))
275 (bare-file-name (ly:find-file file-name)))
277 (if (mac-font? bare-file-name)
278 (handle-mac-font name bare-file-name)
280 ((and font (cff-font? font))
281 (ps-load-file (ly:find-file
282 (format #f "~a.otf" file-name))))
283 ((string? bare-file-name)
284 (ps-load-file file-name))
286 (ly:warning (_ "cannot embed ~S=~S") name file-name)
289 (define (dir-join a b)
292 (string-append a "/" b)))
294 (define (dir-listing dir-name)
295 (define (dir-helper dir lst)
296 (let ((e (readdir dir)))
299 (dir-helper dir (cons e lst)))))
300 (reverse (dir-helper (opendir dir-name) '())))
302 (define (handle-mac-font name file-name)
303 (let* ((dir-name (tmpnam))
308 (mkdir dir-name #o700)
310 (set! status (ly:system (list "fondu" "-force" file-name)))
312 (set! files (dir-listing dir-name))
315 (let* ((full-name (dir-join dir-name f)))
317 (equal? 'regular (stat:type (stat full-name)))
318 (equal? name (ly:ttf-ps-name full-name)))
319 (set! embed (font-file-as-ps-string name full-name 0)))
320 (if (or (equal? "." f)
323 (delete-file full-name))))
328 (set! embed "% failed\n")
329 (ly:warning (_ "cannot extract file matching ~a from ~a")
333 (define (font-file-as-ps-string name file-name font-index)
334 (let* ((downcase-file-name (string-downcase file-name)))
336 ((and file-name (string-endswith downcase-file-name ".pfa"))
337 (embed-document file-name))
338 ((and file-name (string-endswith downcase-file-name ".pfb"))
339 (ly:pfb->pfa file-name))
340 ((and file-name (string-endswith downcase-file-name ".ttf"))
341 (ly:ttf->pfa file-name))
342 ((and file-name (string-endswith downcase-file-name ".ttc"))
343 (ly:ttf->pfa file-name font-index))
344 ((and file-name (string-endswith downcase-file-name ".otf"))
345 (ps-embed-cff (ly:otf->cff file-name) name 0))
347 (ly:warning (_ "do not know how to embed ~S=~S") name file-name)
350 (define (mac-font? bare-file-name)
351 (and (eq? PLATFORM 'darwin)
353 (or (string-endswith bare-file-name ".dfont")
354 (= (stat:size (stat bare-file-name)) 0))))
356 (define (load-font font-psname-filename-fontindex)
357 (let* ((font (list-ref font-psname-filename-fontindex 0))
358 (name (list-ref font-psname-filename-fontindex 1))
359 (file-name (list-ref font-psname-filename-fontindex 2))
360 (font-index (list-ref font-psname-filename-fontindex 3))
361 (bare-file-name (ly:find-file file-name)))
363 (cond ((mac-font? bare-file-name)
364 (handle-mac-font name bare-file-name))
365 ((and font (cff-font? font))
366 (ps-embed-cff (ly:otf-font-table-data font "CFF ")
369 (bare-file-name (font-file-as-ps-string
370 name bare-file-name font-index))
372 (ly:warning (_ "do not know how to embed font ~s ~s ~s")
373 name file-name font))))))
375 (define (load-fonts paper)
376 (let* ((fonts (ly:paper-fonts paper))
378 ;; todo - doc format of list.
382 (cond ((string? (ly:font-file-name font))
385 (ly:font-file-name font)
387 ((ly:pango-font? font)
388 (map (lambda (psname-filename-fontindex)
390 (list-ref psname-filename-fontindex 0)
391 (list-ref psname-filename-fontindex 1)
392 (list-ref psname-filename-fontindex 2)))
393 (ly:pango-font-physical-fonts font)))
395 (ly:font-sub-fonts font))))
397 (font-names (uniq-list
398 (sort (concatenate all-font-names)
399 (lambda (x y) (string<? (cadr x) (cadr y))))))
401 ;; slightly spaghetti-ish: deciding what to load where
405 (cond ((ly:get-option 'gs-load-fonts)
406 (load-font-via-GS name))
407 ((ly:get-option 'gs-load-lily-fonts)
408 (if (or (string-contains (caddr name)
409 (ly:get-option 'datadir))
410 (internal-font? name))
411 (load-font-via-GS name)
415 (pfas (map font-loader font-names)))
419 (display "%%BeginProlog\n" port)
422 "/lilypond-datadir where {pop} {userdict /lilypond-datadir (~a) put } ifelse"
423 (ly:get-option 'datadir))
425 (for-each (lambda (f)
426 (format port "\n%%BeginFont: ~a\n" (car f))
427 (display (cdr f) port)
428 (display "%%EndFont\n" port))
431 (display (procset "encodingdefs.ps") port))
432 (display (setup-variables paper) port)
434 ;; adobe note 5002: should initialize variables before loading routines.
435 (display (procset "music-drawing-routines.ps") port)
436 (display (procset "lilyponddefs.ps") port)
437 (display "%%EndProlog\n" port)
438 (display "%%BeginSetup\ninit-lilypond-parameters\n%%EndSetup\n\n" port))
440 (define (ps-quote str)
442 (lambda (replacement-list result)
446 (car replacement-list))
447 (cadr replacement-list)))
449 '((#\\ "\\\\") (#\( "\\(") (#\) "\\)"))))
451 ;;; Create DOCINFO pdfmark containing metadata
452 ;;; header fields with pdf prefix override those without the prefix
453 (define (handle-metadata header port)
454 (define (metadata-encode val)
455 ;; First, call ly:encode-string-for-pdf to encode the string (latin1 or
456 ;; utf-16be), then escape all parentheses and backslashes
457 ;; FIXME guile-2.0: use (string->utf16 str 'big) instead
459 (ps-quote (ly:encode-string-for-pdf val)))
460 (define (metadata-lookup-output overridevar fallbackvar field)
461 (let* ((overrideval (ly:modules-lookup (list header) overridevar))
462 (fallbackval (ly:modules-lookup (list header) fallbackvar))
463 (val (if overrideval overrideval fallbackval)))
465 (format port "/~a (~a)\n" field (metadata-encode (markup->string val (list header)))))))
467 (metadata-lookup-output 'pdfauthor 'author "Author")
468 (format port "/Creator (LilyPond ~a)\n" (lilypond-version))
469 (metadata-lookup-output 'pdftitle 'title "Title")
470 (metadata-lookup-output 'pdfsubject 'subject "Subject")
471 (metadata-lookup-output 'pdfkeywords 'keywords "Keywords")
472 (metadata-lookup-output 'pdfmodDate 'modDate "ModDate")
473 (metadata-lookup-output 'pdfsubtitle 'subtitle "Subtitle")
474 (metadata-lookup-output 'pdfcomposer 'composer "Composer")
475 (metadata-lookup-output 'pdfarranger 'arranger "Arranger")
476 (metadata-lookup-output 'pdfpoet 'poet "Poet")
477 (metadata-lookup-output 'pdfcopyright 'copyright "Copyright")
478 (display "/DOCINFO pdfmark\n\n" port))
481 (define-public (output-framework basename book scopes fields)
482 (let* ((port-tmp (make-tmpfile))
483 (tmp-name (port-filename port-tmp))
484 (outputter (ly:make-paper-outputter
487 (paper (ly:paper-book-paper book))
488 (header (ly:paper-book-header book))
489 (systems (ly:paper-book-systems book))
490 (page-stencils (map page-stencil (ly:paper-book-pages book)))
491 (landscape? (eq? (ly:output-def-lookup paper 'landscape) #t))
492 (page-number (1- (ly:output-def-lookup paper 'first-page-number)))
493 (page-count (length page-stencils))
494 (port (ly:outputter-port outputter)))
495 (if (ly:get-option 'clip-systems)
496 (clip-system-EPSes basename book))
497 (if (ly:get-option 'dump-signatures)
498 (write-system-signatures basename (ly:paper-book-systems book) 1))
499 (output-scopes scopes fields basename)
500 (display (file-header paper page-count #t) port)
501 ;; don't do BeginDefaults PageMedia: A4
502 ;; not necessary and wrong
503 (write-preamble paper #t port)
505 (handle-metadata header port))
508 (set! page-number (1+ page-number))
509 (dump-page outputter page page-number page-count landscape?))
511 (display "%%Trailer\n%%EOF\n" port)
512 (ly:outputter-close outputter)
513 (postprocess-output book framework-ps-module (ly:output-formats)
514 basename tmp-name #f)))
516 (define-public (dump-stencil-as-EPS paper dump-me filename
518 (let* ((xext (ly:stencil-extent dump-me X))
519 (yext (ly:stencil-extent dump-me Y))
520 (padding (ly:get-option 'eps-box-padding))
521 (left-overshoot (if (number? padding)
522 (* -1 padding (ly:output-def-lookup paper 'mm))
527 (if (or (nan? x) (inf? x)
529 (equal? (format #f "~S" x) "+#.#")
530 (equal? (format #f "~S" x) "-#.#"))
533 ;; the left-overshoot is to make sure that
534 ;; bar numbers stick out of margin uniformly.
537 (if (number? left-overshoot)
538 (min left-overshoot (car xext))
540 (car yext) (cdr xext) (cdr yext)))))
541 (dump-stencil-as-EPS-with-bbox paper dump-me filename load-fonts bbox)))
543 (define-public (dump-stencil-as-EPS-with-bbox paper dump-me filename
546 "Create an EPS file from stencil @var{dump-me} to @var{filename}.
547 @var{bbox} has format @code{(left-x, lower-y, right-x, upper-y)}. If
548 @var{load-fonts} set, include fonts inline."
549 (define (to-rounded-bp-box box)
550 "Convert box to 1/72 inch with rounding to enlarge the box."
551 (let* ((scale (ly:output-def-lookup paper 'output-scale))
552 (strip-non-number (lambda (x)
557 (directed-round (lambda (x rounder)
559 (rounder (/ (* (strip-non-number x) scale)
561 (list (directed-round (car box) floor)
562 (directed-round (cadr box) floor)
563 (directed-round (max (1+ (car box)) (caddr box)) ceiling)
564 (directed-round (max (1+ (cadr box)) (cadddr box)) ceiling))))
566 (let* ((outputter (ly:make-paper-outputter
567 ;; FIXME: better wrap open/open-file,
568 ;; content-mangling is always bad.
569 ;; MINGW hack: need to have "b"inary for embedding CFFs
570 (open-file (format #f "~a.eps" filename) "wb")
572 (port (ly:outputter-port outputter))
573 (rounded-bbox (to-rounded-bp-box bbox))
574 (port (ly:outputter-port outputter))
575 (header (eps-header paper rounded-bbox load-fonts)))
576 (display header port)
577 (write-preamble paper load-fonts port)
578 (display "/mark_page_link { pop pop pop pop pop } bind def\n" port)
579 (display "gsave set-ps-scale-to-lily-scale\n" port)
580 (display "/helpEmmentaler-Brace where {pop helpEmmentaler-Brace} if\n" port)
581 (display "/helpEmmentaler-11 where {pop helpEmmentaler-11} if\n" port)
582 (display "/helpEmmentaler-13 where {pop helpEmmentaler-13} if\n" port)
583 (display "/helpEmmentaler-14 where {pop helpEmmentaler-14} if\n" port)
584 (display "/helpEmmentaler-16 where {pop helpEmmentaler-16} if\n" port)
585 (display "/helpEmmentaler-18 where {pop helpEmmentaler-18} if\n" port)
586 (display "/helpEmmentaler-20 where {pop helpEmmentaler-20} if\n" port)
587 (display "/helpEmmentaler-23 where {pop helpEmmentaler-23} if\n" port)
588 (display "/helpEmmentaler-26 where {pop helpEmmentaler-26} if\n" port)
589 (ly:outputter-dump-stencil outputter dump-me)
590 (display "stroke grestore\n%%Trailer\n%%EOF\n" port)
591 (ly:outputter-close outputter)))
593 (define (clip-systems-to-region basename paper systems region do-pdf do-png)
594 (let* ((extents-system-pairs
595 (filtered-map (lambda (paper-system)
596 (let* ((x-ext (system-clipped-x-extent
597 (paper-system-system-grob paper-system)
600 (cons x-ext paper-system)
605 (lambda (ext-system-pair)
606 (let* ((xext (car ext-system-pair))
607 (paper-system (cdr ext-system-pair))
608 (yext (paper-system-extent paper-system Y))
609 (bbox (list (car xext) (car yext)
610 (cdr xext) (cdr yext)))
611 (filename (if (< 0 count)
612 (format #f "~a-~a" basename count)
614 (set! count (1+ count))
615 (dump-stencil-as-EPS-with-bbox paper
616 (paper-system-stencil paper-system)
618 (ly:get-option 'include-eps-fonts)
621 (postscript->pdf 0 0 filename (format #f "~a.eps" filename) #t))
623 (postscript->png (ly:get-option 'resolution) 0 0
624 filename (format #f "~a.eps" filename) #t))))
625 extents-system-pairs)))
627 (define-public (clip-system-EPSes basename paper-book)
629 (member "pdf" (ly:output-formats)))
631 (member "png" (ly:output-formats)))
633 (define (clip-score-systems basename systems)
634 (let* ((layout (ly:grob-layout (paper-system-system-grob (car systems))))
635 (regions (ly:output-def-lookup layout 'clip-regions)))
638 (clip-systems-to-region
639 (format #f "~a-from-~a-to-~a-clip"
641 (rhythmic-location->file-string (car region))
642 (rhythmic-location->file-string (cdr region)))
643 layout systems region
647 ;; partition in system lists sharing their layout blocks
648 (let* ((systems (ly:paper-book-systems paper-book))
650 (score-system-list '()))
652 (lambda (system last-system)
653 (if (not (and last-system
654 (equal? (paper-system-layout last-system)
655 (paper-system-layout system))))
656 (set! score-system-list (cons '() score-system-list)))
657 (if (paper-system-layout system)
658 (set-car! score-system-list (cons system (car score-system-list))))
663 (for-each (lambda (system-list)
664 ;; filter out headers and top-level markup
665 (if (pair? system-list)
668 (format #f "~a-~a" basename count)
673 (define-public (output-preview-framework basename book scopes fields)
674 (let* ((paper (ly:paper-book-paper book))
675 (systems (relevant-book-systems book))
676 (to-dump-systems (relevant-dump-systems systems)))
677 (dump-stencil-as-EPS paper
678 (stack-stencils Y DOWN 0.0
679 (map paper-system-stencil
680 (reverse to-dump-systems)))
681 (format #f "~a.preview" basename)
683 (postprocess-output book framework-ps-module
684 (cons "png" (ly:output-formats))
685 (format #f "~a.preview" basename)
686 (format #f "~a.preview.eps" basename)
690 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
692 (define (output-width-height defs)
693 (let* ((landscape (ly:output-def-lookup defs 'landscape))
694 (output-scale (ly:output-def-lookup defs 'output-scale))
696 (* x output-scale (/ (ly:bp 1)))))
697 (paper-width (convert (ly:output-def-lookup defs 'paper-width)))
698 (paper-height (convert (ly:output-def-lookup defs 'paper-height)))
699 (w (if landscape paper-height paper-width))
700 (h (if landscape paper-width paper-height)))
703 (define (output-resolution defs)
704 (let ((defs-resolution (ly:output-def-lookup defs 'pngresolution)))
705 (if (number? defs-resolution)
707 (ly:get-option 'resolution))))
709 (define-public (convert-to-pdf book base-name tmp-name is-eps)
710 (let* ((defs (ly:paper-book-paper book))
711 (width-height (output-width-height defs))
712 (width (car width-height))
713 (height (cdr width-height)))
714 (postscript->pdf width height base-name tmp-name is-eps)))
716 (define-public (convert-to-png book base-name tmp-name is-eps)
717 (let* ((defs (ly:paper-book-paper book))
718 (resolution (output-resolution defs))
719 (width-height (output-width-height defs))
720 (width (car width-height))
721 (height (cdr width-height)))
722 (postscript->png resolution width height base-name tmp-name is-eps)))
724 (define-public (convert-to-ps book base-name tmp-name is-eps)
725 (postscript->ps base-name tmp-name is-eps))
727 (define-public (output-classic-framework basename book scopes fields)
728 (ly:error (_ "\nThe PostScript backend does not support the
729 system-by-system output. For that, use the EPS backend instead,
731 lilypond -dbackend=eps FILE
733 If have cut & pasted a lilypond fragment from a webpage, be sure
734 to only remove anything before
736 %% ****************************************************************
737 %% Start cut-&-pastable-section
738 %% ****************************************************************