1 ;;;; This file is part of LilyPond, the GNU music typesetter.
3 ;;;; Copyright (C) 1998--2010 Jan Nieuwenhuizen <janneke@gnu.org>
4 ;;;; Han-Wen Nienhuys <hanwen@xs4all.nl>
6 ;;;; LilyPond is free software: you can redistribute it and/or modify
7 ;;;; it under the terms of the GNU General Public License as published by
8 ;;;; the Free Software Foundation, either version 3 of the License, or
9 ;;;; (at your option) any later version.
11 ;;;; LilyPond is distributed in the hope that it will be useful,
12 ;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13 ;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 ;;;; GNU General Public License for more details.
16 ;;;; You should have received a copy of the GNU General Public License
17 ;;;; along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
19 ; for take, drop, take-while, list-index, and find-tail:
20 (use-modules (srfi srfi-1))
22 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
27 (define-safe-public START -1)
28 (define-safe-public STOP 1)
29 (define-public LEFT -1)
30 (define-public RIGHT 1)
32 (define-public DOWN -1)
33 (define-public CENTER 0)
35 (define-safe-public DOUBLE-FLAT-QTS -4)
36 (define-safe-public THREE-Q-FLAT-QTS -3)
37 (define-safe-public FLAT-QTS -2)
38 (define-safe-public SEMI-FLAT-QTS -1)
39 (define-safe-public NATURAL-QTS 0)
40 (define-safe-public SEMI-SHARP-QTS 1)
41 (define-safe-public SHARP-QTS 2)
42 (define-safe-public THREE-Q-SHARP-QTS 3)
43 (define-safe-public DOUBLE-SHARP-QTS 4)
44 (define-safe-public SEMI-TONE-QTS 2)
46 (define-safe-public DOUBLE-FLAT -1)
47 (define-safe-public THREE-Q-FLAT -3/4)
48 (define-safe-public FLAT -1/2)
49 (define-safe-public SEMI-FLAT -1/4)
50 (define-safe-public NATURAL 0)
51 (define-safe-public SEMI-SHARP 1/4)
52 (define-safe-public SHARP 1/2)
53 (define-safe-public THREE-Q-SHARP 3/4)
54 (define-safe-public DOUBLE-SHARP 1)
55 (define-safe-public SEMI-TONE 1/2)
57 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
60 (define-public ZERO-MOMENT (ly:make-moment 0 1))
62 (define-public (moment-min a b)
63 (if (ly:moment<? a b) a b))
65 (define-public (moment<=? a b)
69 (define-public (fraction->moment fraction)
72 (ly:make-moment (car fraction) (cdr fraction))))
74 (define-public (moment->fraction moment)
75 (cons (ly:moment-main-numerator moment)
76 (ly:moment-main-denominator moment)))
78 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
80 (define-public (average x . lst)
81 (/ (+ x (apply + lst)) (1+ (length lst))))
83 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
84 ;; parser <-> output hooks.
86 (define-public (collect-bookpart-for-book parser book-part)
87 "Toplevel book-part handler"
88 (define (add-bookpart book-part)
90 parser 'toplevel-bookparts
91 (cons book-part (ly:parser-lookup parser 'toplevel-bookparts))))
92 ;; If toplevel scores have been found before this \bookpart,
93 ;; add them first to a dedicated bookpart
94 (if (pair? (ly:parser-lookup parser 'toplevel-scores))
96 (add-bookpart (ly:make-book-part
97 (ly:parser-lookup parser 'toplevel-scores)))
98 (ly:parser-define! parser 'toplevel-scores (list))))
99 (add-bookpart book-part))
101 (define-public (collect-scores-for-book parser score)
103 parser 'toplevel-scores
104 (cons score (ly:parser-lookup parser 'toplevel-scores))))
106 (define-public (collect-music-aux score-handler parser music)
107 (define (music-property symbol)
108 (let ((value (ly:music-property music symbol)))
109 (if (not (null? value))
112 (cond ((music-property 'page-marker)
113 ;; a page marker: set page break/turn permissions or label
115 (let ((label (music-property 'page-label)))
117 (score-handler (ly:make-page-label-marker label))))
118 (for-each (lambda (symbol)
119 (let ((permission (music-property symbol)))
120 (if (symbol? permission)
122 (ly:make-page-permission-marker symbol
123 (if (eqv? 'forbid permission)
126 (list 'line-break-permission 'page-break-permission
127 'page-turn-permission))))
128 ((not (music-property 'void))
129 ;; a regular music expression: make a score with this music
130 ;; void music is discarded
131 (score-handler (scorify-music music parser)))))
133 (define-public (collect-music-for-book parser music)
134 "Top-level music handler"
135 (collect-music-aux (lambda (score)
136 (collect-scores-for-book parser score))
140 (define-public (collect-book-music-for-book parser book music)
142 (collect-music-aux (lambda (score)
143 (ly:book-add-score! book score))
147 (define-public (scorify-music music parser)
150 (for-each (lambda (func)
151 (set! music (func music parser)))
152 toplevel-music-functions)
154 (ly:make-score music))
157 (define (get-current-filename parser)
158 "return any suffix value for output filename allowing for settings by
159 calls to bookOutputName function"
160 (let ((book-filename (ly:parser-lookup parser 'book-filename)))
161 (if (not book-filename)
162 (ly:parser-output-name parser)
165 (define (get-current-suffix parser)
166 "return any suffix value for output filename allowing for settings by calls to
168 (let ((book-output-suffix (ly:parser-lookup parser 'book-output-suffix)))
169 (if (not (string? book-output-suffix))
170 (ly:parser-lookup parser 'output-suffix)
171 book-output-suffix)))
173 (define-public current-outfile-name #f) ; for use by regression tests
175 (define (get-outfile-name parser)
176 "return current filename for generating backend output files"
177 ;; user can now override the base file name, so we have to use
178 ;; the file-name concatenated with any potential output-suffix value
179 ;; as the key to out internal a-list
180 (let* ((base-name (get-current-filename parser))
181 (output-suffix (get-current-suffix parser))
182 (alist-key (format "~a~a" base-name output-suffix))
183 (counter-alist (ly:parser-lookup parser 'counter-alist))
184 (output-count (assoc-get alist-key counter-alist 0))
186 ;; Allow all ASCII alphanumerics, including accents
187 (if (string? output-suffix)
191 (string-regexp-substitute
196 ;; assoc-get call will always have returned a number
197 (if (> output-count 0)
198 (set! result (format #f "~a-~a" result output-count)))
201 parser 'counter-alist
202 (assoc-set! counter-alist alist-key (1+ output-count)))
203 (set! current-outfile-name result)
206 (define (print-book-with parser book process-procedure)
207 (let* ((paper (ly:parser-lookup parser '$defaultpaper))
208 (layout (ly:parser-lookup parser '$defaultlayout))
209 (outfile-name (get-outfile-name parser)))
210 (process-procedure book paper layout outfile-name)))
212 (define-public (print-book-with-defaults parser book)
213 (print-book-with parser book ly:book-process))
215 (define-public (print-book-with-defaults-as-systems parser book)
216 (print-book-with parser book ly:book-process-to-systems))
218 ;; Add a score to the current bookpart, book or toplevel
219 (define-public (add-score parser score)
221 ((ly:parser-lookup parser '$current-bookpart)
222 ((ly:parser-lookup parser 'bookpart-score-handler)
223 (ly:parser-lookup parser '$current-bookpart) score))
224 ((ly:parser-lookup parser '$current-book)
225 ((ly:parser-lookup parser 'book-score-handler)
226 (ly:parser-lookup parser '$current-book) score))
228 ((ly:parser-lookup parser 'toplevel-score-handler) parser score))))
230 (define-public (add-text parser text)
231 (add-score parser (list text)))
233 (define-public (add-music parser music)
234 (collect-music-aux (lambda (score)
235 (add-score parser score))
243 (define-public assoc-get ly:assoc-get)
245 (define-public chain-assoc-get ly:chain-assoc-get)
247 (define-public (uniqued-alist alist acc)
248 (if (null? alist) acc
249 (if (assoc (caar alist) acc)
250 (uniqued-alist (cdr alist) acc)
251 (uniqued-alist (cdr alist) (cons (car alist) acc)))))
253 (define-public (alist<? x y)
254 (string<? (symbol->string (car x))
255 (symbol->string (car y))))
257 (define (map-alist-vals func list)
258 "map FUNC over the vals of LIST, leaving the keys."
261 (cons (cons (caar list) (func (cdar list)))
262 (map-alist-vals func (cdr list)))))
264 (define (map-alist-keys func list)
265 "map FUNC over the keys of an alist LIST, leaving the vals. "
268 (cons (cons (func (caar list)) (cdar list))
269 (map-alist-keys func (cdr list)))))
271 (define-public (first-member members lst)
272 "Return first successful MEMBER of member from MEMBERS in LST."
275 (let ((m (member (car members) lst)))
276 (if m m (first-member (cdr members) lst)))))
278 (define-public (first-assoc keys lst)
279 "Return first successful ASSOC of key from KEYS in LST."
282 (let ((k (assoc (car keys) lst)))
283 (if k k (first-assoc (cdr keys) lst)))))
285 (define-public (flatten-alist alist)
290 (flatten-alist (cdr alist))))))
292 (define (assoc-remove key alist)
293 "Remove key (and its corresponding value) from an alist.
294 Different than assoc-remove! because it is non-destructive."
295 (define (assoc-crawler key l r)
298 (if (equal? (caar r) key)
300 (assoc-crawler key (append l `(,(car r))) (cdr r)))))
301 (assoc-crawler key '() alist))
303 (define-public (map-selected-alist-keys function keys alist)
304 "Returns alist with function applied to all of the values in list keys.
306 @code{guile> (map-selected-alist-keys - '(a b) '((a . 1) (b . -2) (c . 3) (d . 4)))}
307 @code{((a . -1) (b . 2) (c . 3) (d . 4))}"
308 (define (map-selected-alist-keys-helper function key alist)
311 (if (equal? key (car pair))
312 (cons key (function (cdr pair)))
317 (map-selected-alist-keys
320 (map-selected-alist-keys-helper function (car keys) alist))))
325 (define-public (vector-for-each proc vec)
328 ((>= i (vector-length vec)) vec)
329 (vector-set! vec i (proc (vector-ref vec i)))))
334 (define-public (hash-table->alist t)
335 (hash-fold (lambda (k v acc) (acons k v acc))
338 ;; todo: code dup with C++.
339 (define-safe-public (alist->hash-table lst)
340 "Convert alist to table"
341 (let ((m (make-hash-table (length lst))))
342 (map (lambda (k-v) (hashq-set! m (car k-v) (cdr k-v))) lst)
348 (define (functional-or . rest)
351 (apply functional-or (cdr rest)))
354 (define (functional-and . rest)
357 (apply functional-and (cdr rest)))
360 (define (split-list lst n)
361 "Split LST in N equal sized parts"
363 (define (helper todo acc-vector k)
370 (vector-set! acc-vector k (cons (car todo) (vector-ref acc-vector k)))
371 (helper (cdr todo) acc-vector (1- k)))))
373 (helper lst (make-vector n '()) (1- n)))
375 (define (list-element-index lst x)
376 (define (helper todo k)
379 ((equal? (car todo) x) k)
381 (helper (cdr todo) (1+ k)))))
385 (define-public (count-list lst)
386 "Given lst (E1 E2 .. ) return ((E1 . 1) (E2 . 2) ... ) "
388 (define (helper l acc count)
390 (helper (cdr l) (cons (cons (car l) count) acc) (1+ count))
394 (reverse (helper lst '() 1)))
396 (define-public (list-join lst intermediate)
397 "put INTERMEDIATE between all elts of LST."
402 (cons elem (cons intermediate prev))
406 (define-public (filtered-map proc lst)
411 (define-public (flatten-list x)
413 (cond ((null? x) '())
414 ((not (pair? x)) (list x))
415 (else (append (flatten-list (car x))
416 (flatten-list (cdr x))))))
418 (define (list-minus a b)
419 "Return list of elements in A that are not in B."
420 (lset-difference eq? a b))
422 (define-public (uniq-list lst)
423 "Uniq LST, assuming that it is sorted. Uses equal? for comparisons."
426 (fold (lambda (x acc)
429 (if (equal? x (car acc))
434 (define (split-at-predicate pred lst)
435 "Split LST into two lists at the first element that returns #f for
436 (PRED previous_element element). Return the two parts as a pair.
437 Example: (split-at-predicate < '(1 2 3 2 1)) ==> ((1 2 3) . (2 1))"
440 (let ((i (list-index (lambda (x y) (not (pred x y)))
444 (cons (take lst (1+ i)) (drop lst (1+ i)))
447 (define-public (split-list-by-separator lst pred)
448 "Split LST at each element that satisfies PRED, and return the parts
449 (with the separators removed) as a list of lists. Example:
450 (split-list-by-separator '(a 0 b c 1 d) number?) ==> ((a) (b c) (d))"
451 (let loop ((result '()) (lst lst))
452 (if (and lst (not (null? lst)))
455 (list (take-while (lambda (x) (not (pred x))) lst)))
456 (let ((tail (find-tail pred lst)))
457 (if tail (cdr tail) #f)))
460 (define-public (offset-add a b)
461 (cons (+ (car a) (car b))
462 (+ (cdr a) (cdr b))))
464 (define-public (offset-flip-y o)
465 (cons (car o) (- (cdr o))))
467 (define-public (offset-scale o scale)
468 (cons (* (car o) scale)
471 (define-public (ly:list->offsets accum coords)
474 (cons (cons (car coords) (cadr coords))
475 (ly:list->offsets accum (cddr coords)))))
477 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
480 (define-public empty-interval '(+inf.0 . -inf.0))
482 (define-public (symmetric-interval expr)
483 (cons (- expr) expr))
485 (define-public (interval-length x)
486 "Length of the number-pair X, when an interval"
487 (max 0 (- (cdr x) (car x))))
489 (define-public (ordered-cons a b)
493 (define-public (interval-bound interval dir)
494 ((if (= dir RIGHT) cdr car) interval))
496 (define-public (interval-index interval dir)
497 "Interpolate INTERVAL between between left (DIR=-1) and right (DIR=+1)"
499 (* (+ (interval-start interval) (interval-end interval)
500 (* dir (- (interval-end interval) (interval-start interval))))
503 (define-public (interval-center x)
504 "Center the number-pair X, when an interval"
505 (if (interval-empty? x)
507 (/ (+ (car x) (cdr x)) 2)))
509 (define-public interval-start car)
511 (define-public interval-end cdr)
513 (define (other-axis a)
514 (remainder (+ a 1) 2))
516 (define-public (interval-widen iv amount)
517 (cons (- (car iv) amount)
518 (+ (cdr iv) amount)))
520 (define-public (interval-empty? iv)
521 (> (car iv) (cdr iv)))
523 (define-public (interval-union i1 i2)
525 (min (car i1) (car i2))
526 (max (cdr i1) (cdr i2))))
528 (define-public (interval-intersection i1 i2)
530 (max (car i1) (car i2))
531 (min (cdr i1) (cdr i2))))
533 (define-public (interval-sane? i)
534 (not (or (nan? (car i))
538 (> (car i) (cdr i)))))
540 (define-public (add-point interval p)
541 (cons (min (interval-start interval) p)
542 (max (interval-end interval) p)))
544 (define-public (reverse-interval iv)
545 (cons (cdr iv) (car iv)))
547 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
553 (define (coord-operation operator operand coordinate)
555 (cons (operator (coord-x operand) (coord-x coordinate))
556 (operator (coord-y operand) (coord-y coordinate)))
557 (cons (operator operand (coord-x coordinate))
558 (operator operand (coord-y coordinate)))))
560 (define (coord-apply function coordinate)
563 ((coord-x function) (coord-x coordinate))
564 ((coord-y function) (coord-y coordinate)))
566 (function (coord-x coordinate))
567 (function (coord-y coordinate)))))
569 (define-public (coord-translate coordinate amount)
570 (coord-operation + amount coordinate))
572 (define-public (coord-scale coordinate amount)
573 (coord-operation * amount coordinate))
575 (define-public (coord-rotate coordinate degrees-in-radians)
579 (exact->inexact (coord-x coordinate))
580 (exact->inexact (coord-y coordinate))))
583 (+ (* (coord-x coordinate) (coord-x coordinate))
584 (* (coord-y coordinate) (coord-y coordinate)))))
585 (angle (angle-0-2pi (atan (coord-y coordinate) (coord-x coordinate)))))
587 (* radius (cos (+ angle degrees-in-radians)))
588 (* radius (sin (+ angle degrees-in-radians))))))
590 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
593 (define-public PI (* 4 (atan 1)))
595 (define-public TWO-PI (* 2 PI))
597 (define-public PI-OVER-TWO (/ PI 2))
599 (define-public THREE-PI-OVER-TWO (* 3 PI-OVER-TWO))
601 (define-public (cyclic-base-value value cycle)
602 "Takes a value and modulo-maps it between 0 and base."
604 (cyclic-base-value (+ value cycle) cycle)
606 (cyclic-base-value (- value cycle) cycle)
609 (define-public (angle-0-2pi angle)
610 "Takes an angle in radians and maps it between 0 and 2pi."
611 (cyclic-base-value angle TWO-PI))
613 (define-public (angle-0-360 angle)
614 "Takes an angle in radians and maps it between 0 and 2pi."
615 (cyclic-base-value angle 360.0))
617 (define-public PI-OVER-180 (/ PI 180))
619 (define-public (degrees->radians angle-degrees)
620 "Convert the given angle from degrees to radians"
621 (* angle-degrees PI-OVER-180))
623 (define-public (ellipse-radius x-radius y-radius angle)
625 (* x-radius y-radius)
627 (+ (* (expt y-radius 2)
628 (* (cos angle) (cos angle)))
630 (* (sin angle) (sin angle)))))))
632 (define-public (polar->rectangular radius angle-in-degrees)
633 "Convert polar coordinate @code{radius} and @code{angle-in-degrees}
634 to (x-length . y-length)"
635 (let ((complex (make-polar
637 (degrees->radians angle-in-degrees))))
640 (imag-part complex))))
642 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
645 (define-public (string-endswith s suffix)
646 (equal? suffix (substring s
647 (max 0 (- (string-length s) (string-length suffix)))
650 (define-public (string-startswith s prefix)
651 (equal? prefix (substring s 0 (min (string-length s) (string-length prefix)))))
653 (define-public (string-encode-integer i)
656 ((< i 0) (string-append "n" (string-encode-integer (- i))))
658 (make-string 1 (integer->char (+ 65 (modulo i 26))))
659 (string-encode-integer (quotient i 26))))))
661 (define (number->octal-string x)
662 (let* ((n (inexact->exact x))
663 (n64 (quotient n 64))
664 (n8 (quotient (- n (* n64 64)) 8)))
668 (number->string (remainder (- n (+ (* n64 64) (* n8 8))) 8)))))
670 (define-public (ly:inexact->string x radix)
671 (let ((n (inexact->exact x)))
672 (number->string n radix)))
674 (define-public (ly:number-pair->string c)
675 (string-append (ly:number->string (car c)) " "
676 (ly:number->string (cdr c))))
678 (define-public (dir-basename file . rest)
679 "Strip suffixes in REST, but leave directory component for FILE."
680 (define (inverse-basename x y) (basename y x))
681 (simple-format #f "~a/~a" (dirname file)
682 (fold inverse-basename file rest)))
684 (define-public (write-me message x)
685 "Return X. Display MESSAGE and write X. Handy for debugging,
686 possibly turned off."
687 (display message) (write x) (newline) x)
690 (define-public (stderr string . rest)
691 (apply format (cons (current-error-port) (cons string rest)))
692 (force-output (current-error-port)))
694 (define-public (debugf string . rest)
696 (apply stderr (cons string rest))))
698 (define (index-cell cell dir)
703 (define (cons-map f x)
704 "map F to contents of X"
705 (cons (f (car x)) (f (cdr x))))
707 (define-public (list-insert-separator lst between)
708 "Create new list, inserting BETWEEN between elements of LIST"
712 (cons x (cons between y))))
713 (fold-right conc #f lst))
715 (define-public (string-regexp-substitute a b str)
716 (regexp-substitute/global #f a str 'pre b 'post))
718 (define (regexp-split str regex)
720 (define end-of-prev-match 0)
721 (define (notice match)
723 (set! matches (cons (substring (match:string match)
727 (set! end-of-prev-match (match:end match)))
729 (regexp-substitute/global #f regex str notice 'post)
731 (if (< end-of-prev-match (string-length str))
734 (cons (substring str end-of-prev-match (string-length str)) matches)))
746 (define-public (binary-search start end getter target-val)
747 (_i "Find the index between @var{start} and @var{end} (an integer)
748 which will produce the closest match to @var{target-val} when
749 applied to function @var{getter}.")
752 (let* ((compare (quotient (+ start end) 2))
753 (get-val (getter compare)))
755 ((< target-val get-val)
756 (set! end (1- compare)))
757 ((< get-val target-val)
758 (set! start (1+ compare))))
759 (binary-search start end getter target-val))))
761 (define-public (car< a b)
764 (define-public (car<= a b)
765 (<= (car a) (car b)))
767 (define-public (symbol<? lst r)
768 (string<? (symbol->string lst) (symbol->string r)))
770 (define-public (symbol-key<? lst r)
771 (string<? (symbol->string (car lst)) (symbol->string (car r))))
773 (define-public (eval-carefully symbol module . default)
774 "Check if all symbols in expr SYMBOL are reachable
775 in module MODULE. In that case evaluate, otherwise
776 print a warning and set an optional DEFAULT."
777 (let* ((unavailable? (lambda (sym)
778 (not (module-defined? module sym))))
779 (sym-unavailable (if (pair? symbol)
782 (filter symbol? (flatten-list symbol)))
783 (if (unavailable? symbol)
786 (if (null? sym-unavailable)
788 (let* ((def (and (pair? default) (car default))))
789 (ly:programming-error
790 "cannot evaluate ~S in module ~S, setting to ~S"
791 (object->string symbol)
792 (object->string module)
793 (object->string def))
797 ;; don't confuse users with #<procedure .. > syntax.
799 (define-public (scm->string val)
800 (if (and (procedure? val)
801 (symbol? (procedure-name val)))
802 (symbol->string (procedure-name val))
804 (if (self-evaluating? val)
809 (call-with-output-string (lambda (port) (display val port)))
814 (define-public (!= lst r)
817 (define-public lily-unit->bigpoint-factor
819 ((equal? (ly:unit) "mm") (/ 72.0 25.4))
820 ((equal? (ly:unit) "pt") (/ 72.0 72.27))
821 (else (ly:error (_ "unknown unit: ~S") (ly:unit)))))
823 (define-public lily-unit->mm-factor
824 (* 25.4 (/ lily-unit->bigpoint-factor 72)))
826 ;;; FONT may be font smob, or pango font string...
827 (define-public (font-name-style font)
829 (string-downcase font)
830 (let* ((font-name (ly:font-name font))
831 (full-name (if font-name font-name (ly:font-file-name font))))
832 (string-downcase full-name))))
834 (define-public (modified-font-metric-font-scaling font)
835 (let* ((designsize (ly:font-design-size font))
836 (magnification (* (ly:font-magnification font)))
837 (scaling (* magnification designsize)))
838 (debugf "scaling:~S\n" scaling)
839 (debugf "magnification:~S\n" magnification)
840 (debugf "design:~S\n" designsize)
843 (define-public (version-not-seen-message input-file-name)
849 (_ "no \\version statement found, please add~afor future compatibility")
850 (format #f "\n\n\\version ~s\n\n" (lilypond-version)))))
852 (define-public (old-relative-not-used-message input-file-name)
857 (_ "old relative compatibility not used")))