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)))
19 (map (lambda (n) (string-append (number->string n) " ")) l)))
21 (define (chop-decimal x) (if (< (abs x) 0.001) 0.0 x))
23 (define (number->octal-string x)
24 (let* ((n (inexact->exact x))
26 (n8 (quotient (- n (* n64 64)) 8)))
30 (number->string (remainder (- n (+ (* n64 64) (* n8 8))) 8)))))
32 (define (inexact->string x radix)
33 (let ((n (inexact->exact x)))
34 (number->string n radix)))
40 (string-append (number->string (car c)) " ")
41 (string-append (number->string (cadr c)) " ")))
48 (make-string 1 (integer->char (+ (char->integer #\A) i)))
53 (define (scm-scm action-name)
56 (define security-paranoia #f)
59 ;; See documentation of Item::visibility_lambda_
60 (define (postbreak_only_visibility d) (if (= d 1) '(#f . #f) '(#t . #t)))
61 (define (spanbar_non_postbreak_visibility d) (if (= d -1) '(#t . #t) '(#f . #f)))
63 (define (non_postbreak_visibility d) (if (= d 1) '(#t . #t) '(#f . #f)))
66 ;; Score_span_bars are only visible at start of line
67 ;; i.e. if break_dir == RIGHT == 1
68 (define Span_bar_engraver_visibility non_postbreak_visibility)
70 (define Span_score_bar_engraver_visibility postbreak_only_visibility)
71 (define Piano_bar_engraver_visibility postbreak_only_visibility)
72 (define Staff_group_bar_engraver_visibility postbreak_only_visibility)
81 ("dynamic" . "feta-din")
82 ("finger" . "feta-nummer")
83 ("typewriter" . "cmtt")
88 ("mark" . "feta-nummer")
89 ("number" . "feta-nummer")
90 ("volta" . "feta-nummer"))
93 (define script-alist '())
94 (define (articulation-to-scriptdef a)
95 (assoc a script-alist)
98 ;; Map style names to TeX font names. Return false if
99 ;; no font name found.
100 (define (style-to-cmr s)
105 (define (tex-scm action-name)
110 (define font-alist '())
111 (define font-count 0)
112 (define current-font "")
113 (define (clear-fontcache)
115 (set! font-alist '())
117 (set! current-font "")))
119 (define (cached-fontname i)
122 (make-string 1 (integer->char (+ 65 i)))))
124 (define (select-font font-name)
125 (if (not (equal? font-name current-font))
127 (set! current-font font-name)
128 (define font-cmd (assoc font-name font-alist))
129 (if (eq? font-cmd #f)
131 (set! font-cmd (cached-fontname font-count))
132 (set! font-alist (acons font-name font-cmd font-alist))
133 (set! font-count (+ 1 font-count))
134 (if (equal? font-name "")
135 (error "Empty fontname -- SELECT-FONT"))
136 (string-append "\\font" font-cmd "=" font-name font-cmd))
141 (define (beam width slope thick)
142 (embedded-ps ((ps-scm 'beam) width slope thick)))
145 (embedded-ps ((ps-scm 'bracket) h)))
147 (define (dashed-slur thick dash l)
148 (embedded-ps ((ps-scm 'dashed-slur) thick dash l)))
150 (define (crescendo w h cont)
151 (embedded-ps ((ps-scm 'crescendo) w h cont)))
154 (string-append "\\show{" (inexact->string i 10) "}"))
156 (define (decrescendo w h cont)
157 (embedded-ps ((ps-scm 'decrescendo) w h cont)))
159 (define (embedded-ps s)
160 (string-append "\\embeddedps{" s "}"))
163 "\n\\EndLilyPondOutput")
165 (define (experimental-on)
166 "\\turnOnExperimentalFeatures")
168 (define (font-switch i)
172 (define (font-def i s)
174 "\\font" (font-switch i) "=" s "\n"))
176 (define (generalmeter num den)
178 "\\generalmeter{" (number->string (inexact->exact num)) "}{" (number->string (inexact->exact den)) "}"))
180 (define (header-end) "\\turnOnPostScript")
182 (define (header creator generate)
184 "%created by: " creator generate "\n"))
186 (define (invoke-char s i)
188 "\n\\" s "{" (inexact->string i 10) "}" ))
190 (define (invoke-dim1 s d)
192 "\n\\" s "{" (number->dim d) "}"))
197 ;; need to do something to make this really safe.
199 (if security-paranoia
200 (define (output-tex-string s)
201 (regexp-substitute/global #f "\\\\" s 'pre "$\\backslash$" 'post))
202 (define (output-tex-string s) s))
204 (define (lily-def key val)
206 "\\def\\" (output-tex-string key) "{" (output-tex-string val) "}\n"))
208 (define (number->dim x)
210 (number->string (chop-decimal x)) "pt "))
212 (define (placebox x y s)
215 (number->dim y) "}{" (number->dim x) "}{" s "}"))
217 (define (pianobrace y)
219 (define minht (* 2 mudelapaperstaffheight))
220 (define maxht (* 7 minht))
222 "{\\bracefont " (char (max
224 (/ (- (min y (- maxht step)) minht) step))) "}"))
228 (define (rulesym h w)
230 "\\vrule height " (number->dim (/ h 2))
231 " depth " (number->dim (/ h 2))
232 " width " (number->dim w)
236 (define (bezier-sandwich l)
237 (embedded-ps ((ps-scm 'bezier-sandwich) l)))
240 (define (start-line ht)
243 (string-append"\\vbox to " (number->dim ht) "{\\hbox{%\n"))
246 "}\\vss}\\interscoreline")
248 (define (filledbox breapth width depth height)
250 "\\kern" (number->dim (- breapth))
251 "\\vrule width " (number->dim (+ breapth width))
252 "depth " (number->dim depth)
253 "height " (number->dim height) " "))
258 (string-append "\\hbox{" (output-tex-string s) "}"))
260 (define (tuplet dx dy thick dir)
261 (embedded-ps ((ps-scm 'tuplet) dx dy thick dir)))
263 (define (volta w thick last)
264 (embedded-ps ((ps-scm 'volta) w thick last)))
267 ;; The procedures listed below form the public interface of TeX-scm.
268 ;; (should merge the 2 lists)
269 (cond ((eq? action-name 'all-definitions)
272 (define bezier-sandwich ,bezier-sandwich)
273 (define bracket ,bracket)
275 (define crescendo ,crescendo)
276 (define dashed-slur ,dashed-slur)
277 (define decrescendo ,decrescendo)
278 (define end-output ,end-output)
279 (define experimental-on ,experimental-on)
280 (define filledbox ,filledbox)
281 (define font-def ,font-def)
282 (define font-switch ,font-switch)
283 (define generalmeter ,generalmeter)
284 (define header-end ,header-end)
285 (define lily-def ,lily-def)
286 (define header ,header)
287 (define invoke-char ,invoke-char)
288 (define invoke-dim1 ,invoke-dim1)
289 (define pianobrace ,pianobrace)
290 (define placebox ,placebox)
291 (define rulesym ,rulesym)
292 (define select-font ,select-font)
293 (define start-line ,start-line)
294 (define stop-line ,stop-line)
296 (define tuplet ,tuplet)
297 (define volta ,volta)
300 ((eq? action-name 'beam) beam)
301 ((eq? action-name 'tuplet) tuplet)
302 ((eq? action-name 'bracket) bracket)
303 ((eq? action-name 'crescendo) crescendo)
304 ((eq? action-name 'dashed-slur) dashed-slur)
305 ((eq? action-name 'decrescendo) decrescendo)
306 ((eq? action-name 'end-output) end-output)
307 ((eq? action-name 'experimental-on) experimental-on)
308 ((eq? action-name 'font-def) font-def)
309 ((eq? action-name 'font-switch) font-switch)
310 ((eq? action-name 'generalmeter) generalmeter)
311 ((eq? action-name 'header-end) header-end)
312 ((eq? action-name 'lily-def) lily-def)
313 ((eq? action-name 'header) header)
314 ((eq? action-name 'invoke-char) invoke-char)
315 ((eq? action-name 'invoke-dim1) invoke-dim1)
316 ((eq? action-name 'placebox) placebox)
317 ((eq? action-name 'rulesym) rulesym)
318 ((eq? action-name 'bezier-sandwich) bezier-sandwich)
319 ((eq? action-name 'start-line) start-line)
320 ((eq? action-name 'stem) stem)
321 ((eq? action-name 'stop-line) stop-line)
322 ((eq? action-name 'volta) volta)
323 (else (error "unknown tag -- PS-TEX " action-name))
328 (define (ps-scm action-name)
331 ;; alist containing fontname -> fontcommand assoc (both strings)
332 (define font-alist '())
333 (define font-count 0)
334 (define current-font "")
335 (define (clear-fontcache)
337 (set! font-alist '())
339 (set! current-font "")))
341 (define (cached-fontname i)
344 (make-string 1 (integer->char (+ 65 i)))))
346 (define (select-font font-name)
347 (if (not (equal? font-name current-font))
349 (set! current-font font-name)
350 (define font-cmd (assoc font-name font-alist))
351 (if (eq? font-cmd #f)
353 (set! font-cmd (cached-fontname font-count))
354 (set! font-alist (acons font-name font-cmd font-alist))
355 (set! font-count (+ 1 font-count))
356 (string-append "\n/" font-cmd " {/"
358 " findfont 12 scalefont setfont} bind def \n"
360 (string-append (cdr font-cmd) " ")))
361 ; font-name == current-font no switch needed
365 (define (beam width slope thick)
367 (numbers->string (list width slope thick)) " draw_beam " ))
370 (invoke-dim1 "draw_bracket" h))
373 (invoke-char "show" i))
375 (define (crescendo w h cont)
377 (numbers->string (list w h (inexact->exact cont)))
380 (define (dashed-slur thick dash l)
382 (apply string-append (map control->string l))
383 (number->string thick)
385 (if (> 1 dash) (number->string (- (* thick dash) thick)) "0") " "
386 (number->string (* 2 thick))
387 " ] 0 draw_dashed_slur"))
389 (define (decrescendo w h cont)
391 (numbers->string (list w h (inexact->exact cont)))
398 (define (experimental-on) "")
400 (define (filledbox breapth width depth height)
401 (string-append (numbers->string (list breapth width depth height))
405 (define (font-def i s)
408 (substring s 0 (- (string-length s) 4))
409 " findfont 12 scalefont setfont} bind def \n"))
411 (define (font-switch i)
412 (string-append (font i) " "))
414 (define (generalmeter num den)
415 (string-append (number->string (inexact->exact num)) " " (number->string (inexact->exact den)) " generalmeter "))
417 (define (header-end) "")
418 (define (lily-def key val)
420 "/" key " {" val "} bind def\n"))
422 (define (header creator generate)
425 "%%Creator: " creator generate "\n"))
427 (define (invoke-char s i)
429 "(\\" (inexact->string i 8) ") " s " " ))
431 (define (invoke-dim1 s d)
433 (number->string (* d (/ 72.27 72))) " " s ))
435 (define (placebox x y s)
437 (number->string x) " " (number->string y) " {" s "} placebox "))
438 (define (pianobrace y)
442 (define (rulesym x y)
444 (number->string x) " "
445 (number->string y) " "
448 (define (bezier-sandwich l)
450 (apply string-append (map control->string l))
451 " draw_bezier_sandwich"))
458 (define (stem breapth width depth height)
459 (string-append (numbers->string (list breapth width depth height))
466 (string-append "(" s ") show "))
469 (define (volta w thick last)
471 (numbers->string (list w thick (inexact->exact last)))
474 (define (tuplet dx dy thick dir)
476 (numbers->string (list dx dy thick (inexact->exact dir)))
485 (cond ((eq? action-name 'all-definitions)
488 (define tuplet ,tuplet)
489 (define bracket ,bracket)
491 (define crescendo ,crescendo)
492 (define volta ,volta)
493 (define bezier-sandwich ,bezier-sandwich)
494 (define dashed-slur ,dashed-slur)
495 (define decrescendo ,decrescendo)
496 (define end-output ,end-output)
497 (define experimental-on ,experimental-on)
498 (define filledbox ,filledbox)
499 (define font-def ,font-def)
500 (define font-switch ,font-switch)
501 (define generalmeter ,generalmeter)
502 (define pianobrace ,pianobrace)
503 (define header-end ,header-end)
504 (define lily-def ,lily-def)
505 (define header ,header)
506 (define invoke-char ,invoke-char)
507 (define invoke-dim1 ,invoke-dim1)
508 (define placebox ,placebox)
509 (define rulesym ,rulesym)
510 (define select-font ,select-font)
511 (define start-line ,start-line)
513 (define stop-line ,stop-line)
516 ((eq? action-name 'tuplet) tuplet)
517 ((eq? action-name 'beam) beam)
518 ((eq? action-name 'bezier-sandwich) bezier-sandwich)
519 ((eq? action-name 'bracket) bracket)
520 ((eq? action-name 'char) char)
521 ((eq? action-name 'crescendo) crescendo)
522 ((eq? action-name 'dashed-slur) dashed-slur)
523 ((eq? action-name 'decrescendo) decrescendo)
524 ((eq? action-name 'experimental-on) experimental-on)
525 ((eq? action-name 'filledbox) filledbox)
526 ((eq? action-name 'select-font) select-font)
527 ((eq? action-name 'volta) volta)
528 (else (error "unknown tag -- PS-SCM " action-name))
533 ; Russ McManus, <mcmanus@IDT.NET>
535 ; I use the following, which should definitely be provided somewhere
536 ; in guile, but isn't, AFAIK:
540 (define (hash-table-for-each fn ht)
542 ((= i (vector-length ht)))
543 (do ((alist (vector-ref ht i) (cdr alist)))
545 (fn (car (car alist)) (cdr (car alist))))))
547 (define (hash-table-map fn ht)
550 ((= i (vector-length ht)) (reverse ret-ls))
551 (do ((alist (vector-ref ht i) (cdr alist)))
553 (set! ret-ls (cons (fn (car (car alist)) (cdr (car alist))) ret-ls)))))