1 ; lily.scm -- implement Scheme output routines for TeX and PostScript
3 ; source file of the GNU LilyPond music typesetter
5 ; (c) 1998 Jan Nieuwenhuizen <janneke@gnu.org>
8 ;(debug-enable 'backtrace)
14 (map (lambda (n) (string-append (number->string n ) " ")) l)))
16 (define (reduce operator list)
17 (if (null? (cdr list)) (car list)
18 (operator (car list) (reduce operator (cdr list)))
23 (define (glue-2-strings a b) (string-append a " " b))
27 (reduce glue-2-strings (map number->string l)))
29 (define (chop-decimal x) (if (< (abs x) 0.001) 0.0 x))
31 (define (number->octal-string x)
32 (let* ((n (inexact->exact x))
34 (n8 (quotient (- n (* n64 64)) 8)))
38 (number->string (remainder (- n (+ (* n64 64) (* n8 8))) 8)))))
40 (define (inexact->string x radix)
41 (let ((n (inexact->exact x)))
42 (number->string n radix)))
48 (string-append (number->string (car c)) " ")
49 (string-append (number->string (cadr c)) " ")))
56 (make-string 1 (integer->char (+ (char->integer #\A) i)))
61 (define (scm-scm action-name)
64 (define security-paranoia #f)
67 ;; See documentation of Item::visibility_lambda_
68 (define (postbreak_only_visibility d) (if (= d 1) '(#f . #f) '(#t . #t)))
69 (define (spanbar_non_postbreak_visibility d) (if (= d -1) '(#t . #t) '(#f . #f)))
71 (define (non_postbreak_visibility d) (if (= d 1) '(#t . #t) '(#f . #f)))
72 (define (non_prebreak_visibility d) (if (= d -1) '(#t . #t) '(#f . #f)))
75 ;; Score_span_bars are only visible at start of line
76 ;; i.e. if break_dir == RIGHT == 1
77 (define Span_bar_engraver_visibility non_postbreak_visibility)
78 (define mark-visibility non_prebreak_visibility)
79 (define Span_score_bar_engraver_visibility postbreak_only_visibility)
80 (define Piano_bar_engraver_visibility postbreak_only_visibility)
81 (define Staff_group_bar_engraver_visibility postbreak_only_visibility)
90 ("dynamic" . "feta-din")
91 ("finger" . "feta-nummer")
92 ("typewriter" . "cmtt")
97 ("mark" . "feta-nummer")
98 ("number" . "feta-nummer")
99 ("volta" . "feta-nummer"))
102 (define script-alist '())
103 (define (articulation-to-scriptdef a)
104 (assoc a script-alist)
107 ;; Map style names to TeX font names. Return false if
108 ;; no font name found.
109 (define (style-to-cmr s)
114 (define (tex-scm action-name)
119 (define font-alist '())
120 (define font-count 0)
121 (define current-font "")
122 (define (clear-fontcache)
124 (set! font-alist '())
126 (set! current-font "")))
128 (define (cached-fontname i)
131 (make-string 1 (integer->char (+ 65 i)))))
133 (define (select-font font-name)
134 (if (not (equal? font-name current-font))
136 (set! current-font font-name)
137 (define font-cmd (assoc font-name font-alist))
138 (if (eq? font-cmd #f)
140 (set! font-cmd (cached-fontname font-count))
141 (set! font-alist (acons font-name font-cmd font-alist))
142 (set! font-count (+ 1 font-count))
143 (if (equal? font-name "")
144 (error "Empty fontname -- SELECT-FONT"))
145 (string-append "\\font" font-cmd "=" font-name font-cmd))
150 (define (beam width slope thick)
151 (embedded-ps ((ps-scm 'beam) width slope thick)))
154 (embedded-ps ((ps-scm 'bracket) h)))
156 (define (dashed-slur thick dash l)
157 (embedded-ps ((ps-scm 'dashed-slur) thick dash l)))
159 (define (crescendo w h cont)
160 (embedded-ps ((ps-scm 'crescendo) w h cont)))
163 (string-append "\\show{" (inexact->string i 10) "}"))
165 (define (decrescendo w h cont)
166 (embedded-ps ((ps-scm 'decrescendo) w h cont)))
168 (define (embedded-ps s)
169 (string-append "\\embeddedps{" s "}"))
172 "\n\\EndLilyPondOutput")
174 (define (experimental-on)
175 "\\turnOnExperimentalFeatures")
177 (define (font-switch i)
181 (define (font-def i s)
183 "\\font" (font-switch i) "=" s "\n"))
185 (define (generalmeter num den)
187 "\\generalmeter{" (number->string (inexact->exact num)) "}{" (number->string (inexact->exact den)) "}"))
189 (define (header-end) "\\turnOnPostScript")
191 (define (header creator generate)
193 "%created by: " creator generate "\n"))
195 (define (invoke-char s i)
197 "\n\\" s "{" (inexact->string i 10) "}" ))
199 (define (invoke-dim1 s d)
201 "\n\\" s "{" (number->dim d) "}"))
206 ;; need to do something to make this really safe.
208 (if security-paranoia
209 (define (output-tex-string s)
210 (regexp-substitute/global #f "\\\\" s 'pre "$\\backslash$" 'post))
211 (define (output-tex-string s) s))
213 (define (lily-def key val)
215 "\\def\\" (output-tex-string key) "{" (output-tex-string val) "}\n"))
217 (define (number->dim x)
219 (number->string (chop-decimal x)) " pt "))
221 (define (placebox x y s)
224 (number->dim y) "}{" (number->dim x) "}{" s "}"))
226 (define (pianobrace y)
228 (define minht (* 2 mudelapaperstaffheight))
229 (define maxht (* 7 minht))
231 "{\\bracefont " (char (max
233 (/ (- (min y (- maxht step)) minht) step))) "}"))
237 (define (rulesym h w)
239 "\\vrule height " (number->dim (/ h 2))
240 " depth " (number->dim (/ h 2))
241 " width " (number->dim w)
245 (define (bezier-sandwich l)
246 (embedded-ps ((ps-scm 'bezier-sandwich) l)))
249 (define (start-line ht)
252 (string-append"\\vbox to " (number->dim ht) "{\\hbox{%\n"))
255 "}\\vss}\\interscoreline")
256 (define (stop-last-line)
258 (define (filledbox breapth width depth height)
260 "\\kern" (number->dim (- breapth))
261 "\\vrule width " (number->dim (+ breapth width))
262 "depth " (number->dim depth)
263 "height " (number->dim height) " "))
268 (string-append "\\hbox{" (output-tex-string s) "}"))
270 (define (tuplet ht dx dy thick dir)
271 (embedded-ps ((ps-scm 'tuplet) ht dx dy thick dir)))
273 (define (volta w thick last)
274 (embedded-ps ((ps-scm 'volta) w thick last)))
277 ;; The procedures listed below form the public interface of TeX-scm.
278 ;; (should merge the 2 lists)
279 (cond ((eq? action-name 'all-definitions)
282 (define bezier-sandwich ,bezier-sandwich)
283 (define bracket ,bracket)
285 (define crescendo ,crescendo)
286 (define dashed-slur ,dashed-slur)
287 (define decrescendo ,decrescendo)
288 (define end-output ,end-output)
289 (define experimental-on ,experimental-on)
290 (define filledbox ,filledbox)
291 (define font-def ,font-def)
292 (define font-switch ,font-switch)
293 (define generalmeter ,generalmeter)
294 (define header-end ,header-end)
295 (define lily-def ,lily-def)
296 (define header ,header)
297 (define invoke-char ,invoke-char)
298 (define invoke-dim1 ,invoke-dim1)
299 (define pianobrace ,pianobrace)
300 (define placebox ,placebox)
301 (define rulesym ,rulesym)
302 (define select-font ,select-font)
303 (define start-line ,start-line)
304 (define stop-line ,stop-line)
305 (define stop-last-line ,stop-last-line)
307 (define tuplet ,tuplet)
308 (define volta ,volta)
311 ((eq? action-name 'beam) beam)
312 ((eq? action-name 'tuplet) tuplet)
313 ((eq? action-name 'bracket) bracket)
314 ((eq? action-name 'crescendo) crescendo)
315 ((eq? action-name 'dashed-slur) dashed-slur)
316 ((eq? action-name 'decrescendo) decrescendo)
317 ((eq? action-name 'end-output) end-output)
318 ((eq? action-name 'experimental-on) experimental-on)
319 ((eq? action-name 'font-def) font-def)
320 ((eq? action-name 'font-switch) font-switch)
321 ((eq? action-name 'generalmeter) generalmeter)
322 ((eq? action-name 'header-end) header-end)
323 ((eq? action-name 'lily-def) lily-def)
324 ((eq? action-name 'header) header)
325 ((eq? action-name 'invoke-char) invoke-char)
326 ((eq? action-name 'invoke-dim1) invoke-dim1)
327 ((eq? action-name 'placebox) placebox)
328 ((eq? action-name 'rulesym) rulesym)
329 ((eq? action-name 'bezier-sandwich) bezier-sandwich)
330 ((eq? action-name 'start-line) start-line)
331 ((eq? action-name 'stem) stem)
332 ((eq? action-name 'stop-line) stop-line)
333 ((eq? action-name 'stop-last-line) stop-last-line)
334 ((eq? action-name 'volta) volta)
335 (else (error "unknown tag -- PS-TEX " action-name))
340 (define (ps-scm action-name)
343 ;; alist containing fontname -> fontcommand assoc (both strings)
344 (define font-alist '())
345 (define font-count 0)
346 (define current-font "")
347 (define (clear-fontcache)
349 (set! font-alist '())
351 (set! current-font "")))
353 (define (cached-fontname i)
356 (make-string 1 (integer->char (+ 65 i)))))
358 (define (select-font font-name)
359 (if (not (equal? font-name current-font))
361 (set! current-font font-name)
362 (define font-cmd (assoc font-name font-alist))
363 (if (eq? font-cmd #f)
365 (set! font-cmd (cached-fontname font-count))
366 (set! font-alist (acons font-name font-cmd font-alist))
367 (set! font-count (+ 1 font-count))
368 (string-append "\n/" font-cmd " {/"
370 " findfont 12 scalefont setfont} bind def \n"
372 (string-append (cdr font-cmd) " ")))
373 ; font-name == current-font no switch needed
377 (define (beam width slope thick)
379 (numbers->string (list width slope thick)) " draw_beam " ))
382 (invoke-dim1 " draw_bracket" h))
385 (invoke-char " show" i))
387 (define (crescendo w h cont)
389 (numbers->string (list w h (inexact->exact cont)))
392 (define (dashed-slur thick dash l)
394 (apply string-append (map control->string l))
395 (number->string thick)
397 (if (> 1 dash) (number->string (- (* thick dash) thick)) "0") " "
398 (number->string (* 2 thick))
399 " ] 0 draw_dashed_slur"))
401 (define (decrescendo w h cont)
403 (numbers->string (list w h (inexact->exact cont)))
404 " draw_decrescendo"))
410 (define (experimental-on) "")
412 (define (filledbox breapth width depth height)
413 (string-append (numbers->string (list breapth width depth height))
417 (define (font-def i s)
420 (substring s 0 (- (string-length s) 4))
421 " findfont 12 scalefont setfont} bind def \n"))
423 (define (font-switch i)
424 (string-append (font i) " "))
426 (define (generalmeter num den)
427 (string-append (number->string (inexact->exact num)) " " (number->string (inexact->exact den)) " generalmeter "))
429 (define (header-end) "")
430 (define (lily-def key val)
432 "/" key " {" val "} bind def\n"))
434 (define (header creator generate)
437 "%%Creator: " creator generate "\n"))
439 (define (invoke-char s i)
441 "(\\" (inexact->string i 8) ") " s " " ))
443 (define (invoke-dim1 s d)
445 (number->string (* d (/ 72.27 72))) " " s ))
447 (define (placebox x y s)
449 (number->string x) " " (number->string y) " {" s "} placebox "))
450 (define (pianobrace y)
454 (define (rulesym x y)
456 (number->string x) " "
457 (number->string y) " "
460 (define (bezier-sandwich l)
462 (apply string-append (map control->string l))
463 " draw_bezier_sandwich"))
465 (define (start-line height)
470 (define (stem breapth width depth height)
471 (string-append (numbers->string (list breapth width depth height))
478 (string-append "(" s ") show "))
481 (define (volta w thick last)
483 (numbers->string (list w thick (inexact->exact last)))
486 (define (tuplet ht dx dy thick dir)
488 (numbers->string (list ht dx dy thick (inexact->exact dir)))
497 (cond ((eq? action-name 'all-definitions)
500 (define tuplet ,tuplet)
501 (define bracket ,bracket)
503 (define crescendo ,crescendo)
504 (define volta ,volta)
505 (define bezier-sandwich ,bezier-sandwich)
506 (define dashed-slur ,dashed-slur)
507 (define decrescendo ,decrescendo)
508 (define end-output ,end-output)
509 (define experimental-on ,experimental-on)
510 (define filledbox ,filledbox)
511 (define font-def ,font-def)
512 (define font-switch ,font-switch)
513 (define generalmeter ,generalmeter)
514 (define pianobrace ,pianobrace)
515 (define header-end ,header-end)
516 (define lily-def ,lily-def)
517 (define header ,header)
518 (define invoke-char ,invoke-char)
519 (define invoke-dim1 ,invoke-dim1)
520 (define placebox ,placebox)
521 (define rulesym ,rulesym)
522 (define select-font ,select-font)
523 (define start-line ,start-line)
525 (define stop-line ,stop-line)
526 (define stop-last-line ,stop-line)
529 ((eq? action-name 'tuplet) tuplet)
530 ((eq? action-name 'beam) beam)
531 ((eq? action-name 'bezier-sandwich) bezier-sandwich)
532 ((eq? action-name 'bracket) bracket)
533 ((eq? action-name 'char) char)
534 ((eq? action-name 'crescendo) crescendo)
535 ((eq? action-name 'dashed-slur) dashed-slur)
536 ((eq? action-name 'decrescendo) decrescendo)
537 ((eq? action-name 'experimental-on) experimental-on)
538 ((eq? action-name 'filledbox) filledbox)
539 ((eq? action-name 'select-font) select-font)
540 ((eq? action-name 'volta) volta)
541 (else (error "unknown tag -- PS-SCM " action-name))
546 ; Russ McManus, <mcmanus@IDT.NET>
548 ; I use the following, which should definitely be provided somewhere
549 ; in guile, but isn't, AFAIK:
553 (define (hash-table-for-each fn ht)
555 ((= i (vector-length ht)))
556 (do ((alist (vector-ref ht i) (cdr alist)))
558 (fn (car (car alist)) (cdr (car alist))))))
560 (define (hash-table-map fn ht)
563 ((= i (vector-length ht)) (reverse ret-ls))
564 (do ((alist (vector-ref ht i) (cdr alist)))
566 (set! ret-ls (cons (fn (car (car alist)) (cdr (car alist))) ret-ls)))))