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)
83 ;; Spacing constants for prefatory matter.
85 ;; rules for this spacing are much more complicated than this. See [Wanske] page 126 -- 134
90 (("Clef_item" "Key_item") . 2.5)
91 (("Key_item" "Time_signature") . 2.5)
92 (("Clef_item" "Time_signature") . 2.75)
93 (("Staff_bar" "Clef_item") . 1.0)
94 (("Clef_item" "Staff_bar") . 3.7)
95 (("Time_signature" "Staff_bar") . 2.0)
96 (("Key_item" "Staff_bar") . 2.5)
97 (("Span_bar" "Clef_item") . 1.0)
98 (("Clef_item" "Span_bar") . 3.7)
99 (("Time_signature" "Span_bar") . 2.0)
100 (("Key_item" "Span_bar") . 2.5)
101 (("Staff_bar" "Time_signature") . 1.0)
106 (define (break-align-spacer this next)
107 (let ((entry (assoc `(,this ,next) space-alist)))
110 (begin (ly-warn (string-append "Unknown spacing pair " this ", " next))
119 ("dynamic" . "feta-din")
120 ("finger" . "feta-nummer")
121 ("typewriter" . "cmtt")
126 ("mark" . "feta-nummer")
127 ("number" . "feta-nummer")
128 ("volta" . "feta-nummer"))
131 (define script-alist '())
132 (define (articulation-to-scriptdef a)
133 (assoc a script-alist)
136 ;; Map style names to TeX font names. Return false if
137 ;; no font name found.
138 (define (style-to-cmr s)
143 (define (tex-scm action-name)
148 (define font-alist '())
149 (define font-count 0)
150 (define current-font "")
151 (define (clear-fontcache)
153 (set! font-alist '())
155 (set! current-font "")))
157 (define (cached-fontname i)
160 (make-string 1 (integer->char (+ 65 i)))))
162 (define (select-font font-name)
163 (if (not (equal? font-name current-font))
165 (set! current-font font-name)
166 (define font-cmd (assoc font-name font-alist))
167 (if (eq? font-cmd #f)
169 (set! font-cmd (cached-fontname font-count))
170 (set! font-alist (acons font-name font-cmd font-alist))
171 (set! font-count (+ 1 font-count))
172 (if (equal? font-name "")
173 (error "Empty fontname -- SELECT-FONT"))
174 (string-append "\\font" font-cmd "=" font-name font-cmd))
179 (define (beam width slope thick)
180 (embedded-ps ((ps-scm 'beam) width slope thick)))
183 (embedded-ps ((ps-scm 'bracket) h)))
185 (define (dashed-slur thick dash l)
186 (embedded-ps ((ps-scm 'dashed-slur) thick dash l)))
188 (define (crescendo w h cont)
189 (embedded-ps ((ps-scm 'crescendo) w h cont)))
192 (string-append "\\show{" (inexact->string i 10) "}"))
194 (define (decrescendo w h cont)
195 (embedded-ps ((ps-scm 'decrescendo) w h cont)))
197 (define (embedded-ps s)
198 (string-append "\\embeddedps{" s "}"))
201 "\n\\EndLilyPondOutput")
203 (define (experimental-on)
204 "\\turnOnExperimentalFeatures")
206 (define (font-switch i)
210 (define (font-def i s)
212 "\\font" (font-switch i) "=" s "\n"))
214 (define (generalmeter num den)
216 "\\generalmeter{" (number->string (inexact->exact num)) "}{" (number->string (inexact->exact den)) "}"))
218 (define (header-end) "\\turnOnPostScript")
220 (define (header creator generate)
222 "%created by: " creator generate "\n"))
224 (define (invoke-char s i)
226 "\n\\" s "{" (inexact->string i 10) "}" ))
228 (define (invoke-dim1 s d)
230 "\n\\" s "{" (number->dim d) "}"))
235 ;; need to do something to make this really safe.
237 (if security-paranoia
238 (define (output-tex-string s)
239 (regexp-substitute/global #f "\\\\" s 'pre "$\\backslash$" 'post))
240 (define (output-tex-string s) s))
242 (define (lily-def key val)
244 "\\def\\" (output-tex-string key) "{" (output-tex-string val) "}\n"))
246 (define (number->dim x)
248 (number->string (chop-decimal x)) " pt "))
250 (define (placebox x y s)
253 (number->dim y) "}{" (number->dim x) "}{" s "}"))
255 (define (pianobrace y)
257 (define minht (* 2 mudelapaperstaffheight))
258 (define maxht (* 7 minht))
260 "{\\bracefont " (char (max
262 (/ (- (min y (- maxht step)) minht) step))) "}"))
266 (define (rulesym h w)
268 "\\vrule height " (number->dim (/ h 2))
269 " depth " (number->dim (/ h 2))
270 " width " (number->dim w)
274 (define (bezier-sandwich l)
275 (embedded-ps ((ps-scm 'bezier-sandwich) l)))
278 (define (start-line ht)
281 (string-append"\\vbox to " (number->dim ht) "{\\hbox{%\n"))
284 "}\\vss}\\interscoreline")
285 (define (stop-last-line)
287 (define (filledbox breapth width depth height)
289 "\\kern" (number->dim (- breapth))
290 "\\vrule width " (number->dim (+ breapth width))
291 "depth " (number->dim depth)
292 "height " (number->dim height) " "))
297 (string-append "\\hbox{" (output-tex-string s) "}"))
299 (define (tuplet ht dx dy thick dir)
300 (embedded-ps ((ps-scm 'tuplet) ht dx dy thick dir)))
302 (define (volta w thick last)
303 (embedded-ps ((ps-scm 'volta) w thick last)))
306 ;; The procedures listed below form the public interface of TeX-scm.
307 ;; (should merge the 2 lists)
308 (cond ((eq? action-name 'all-definitions)
311 (define bezier-sandwich ,bezier-sandwich)
312 (define bracket ,bracket)
314 (define crescendo ,crescendo)
315 (define dashed-slur ,dashed-slur)
316 (define decrescendo ,decrescendo)
317 (define end-output ,end-output)
318 (define experimental-on ,experimental-on)
319 (define filledbox ,filledbox)
320 (define font-def ,font-def)
321 (define font-switch ,font-switch)
322 (define generalmeter ,generalmeter)
323 (define header-end ,header-end)
324 (define lily-def ,lily-def)
325 (define header ,header)
326 (define invoke-char ,invoke-char)
327 (define invoke-dim1 ,invoke-dim1)
328 (define pianobrace ,pianobrace)
329 (define placebox ,placebox)
330 (define rulesym ,rulesym)
331 (define select-font ,select-font)
332 (define start-line ,start-line)
333 (define stop-line ,stop-line)
334 (define stop-last-line ,stop-last-line)
336 (define tuplet ,tuplet)
337 (define volta ,volta)
340 ((eq? action-name 'beam) beam)
341 ((eq? action-name 'tuplet) tuplet)
342 ((eq? action-name 'bracket) bracket)
343 ((eq? action-name 'crescendo) crescendo)
344 ((eq? action-name 'dashed-slur) dashed-slur)
345 ((eq? action-name 'decrescendo) decrescendo)
346 ((eq? action-name 'end-output) end-output)
347 ((eq? action-name 'experimental-on) experimental-on)
348 ((eq? action-name 'font-def) font-def)
349 ((eq? action-name 'font-switch) font-switch)
350 ((eq? action-name 'generalmeter) generalmeter)
351 ((eq? action-name 'header-end) header-end)
352 ((eq? action-name 'lily-def) lily-def)
353 ((eq? action-name 'header) header)
354 ((eq? action-name 'invoke-char) invoke-char)
355 ((eq? action-name 'invoke-dim1) invoke-dim1)
356 ((eq? action-name 'placebox) placebox)
357 ((eq? action-name 'rulesym) rulesym)
358 ((eq? action-name 'bezier-sandwich) bezier-sandwich)
359 ((eq? action-name 'start-line) start-line)
360 ((eq? action-name 'stem) stem)
361 ((eq? action-name 'stop-line) stop-line)
362 ((eq? action-name 'stop-last-line) stop-last-line)
363 ((eq? action-name 'volta) volta)
364 (else (error "unknown tag -- PS-TEX " action-name))
369 (define (ps-scm action-name)
372 ;; alist containing fontname -> fontcommand assoc (both strings)
373 (define font-alist '())
374 (define font-count 0)
375 (define current-font "")
376 (define (clear-fontcache)
378 (set! font-alist '())
380 (set! current-font "")))
382 (define (cached-fontname i)
385 (make-string 1 (integer->char (+ 65 i)))))
387 (define (select-font font-name)
388 (if (not (equal? font-name current-font))
390 (set! current-font font-name)
391 (define font-cmd (assoc font-name font-alist))
392 (if (eq? font-cmd #f)
394 (set! font-cmd (cached-fontname font-count))
395 (set! font-alist (acons font-name font-cmd font-alist))
396 (set! font-count (+ 1 font-count))
397 (string-append "\n/" font-cmd " {/"
399 " findfont 12 scalefont setfont} bind def \n"
401 (string-append (cdr font-cmd) " ")))
402 ; font-name == current-font no switch needed
406 (define (beam width slope thick)
408 (numbers->string (list width slope thick)) " draw_beam " ))
411 (invoke-dim1 " draw_bracket" h))
414 (invoke-char " show" i))
416 (define (crescendo w h cont)
418 (numbers->string (list w h (inexact->exact cont)))
421 (define (dashed-slur thick dash l)
423 (apply string-append (map control->string l))
424 (number->string thick)
426 (if (> 1 dash) (number->string (- (* thick dash) thick)) "0") " "
427 (number->string (* 2 thick))
428 " ] 0 draw_dashed_slur"))
430 (define (decrescendo w h cont)
432 (numbers->string (list w h (inexact->exact cont)))
433 " draw_decrescendo"))
439 (define (experimental-on) "")
441 (define (filledbox breapth width depth height)
442 (string-append (numbers->string (list breapth width depth height))
446 (define (font-def i s)
449 (substring s 0 (- (string-length s) 4))
450 " findfont 12 scalefont setfont} bind def \n"))
452 (define (font-switch i)
453 (string-append (font i) " "))
455 (define (generalmeter num den)
456 (string-append (number->string (inexact->exact num)) " " (number->string (inexact->exact den)) " generalmeter "))
458 (define (header-end) "")
459 (define (lily-def key val)
461 "/" key " {" val "} bind def\n"))
463 (define (header creator generate)
466 "%%Creator: " creator generate "\n"))
468 (define (invoke-char s i)
470 "(\\" (inexact->string i 8) ") " s " " ))
472 (define (invoke-dim1 s d)
474 (number->string (* d (/ 72.27 72))) " " s ))
476 (define (placebox x y s)
478 (number->string x) " " (number->string y) " {" s "} placebox "))
479 (define (pianobrace y)
483 (define (rulesym x y)
485 (number->string x) " "
486 (number->string y) " "
489 (define (bezier-sandwich l)
491 (apply string-append (map control->string l))
492 " draw_bezier_sandwich"))
494 (define (start-line height)
499 (define (stem breapth width depth height)
500 (string-append (numbers->string (list breapth width depth height))
507 (string-append "(" s ") show "))
510 (define (volta w thick last)
512 (numbers->string (list w thick (inexact->exact last)))
515 (define (tuplet ht dx dy thick dir)
517 (numbers->string (list ht dx dy thick (inexact->exact dir)))
526 (cond ((eq? action-name 'all-definitions)
529 (define tuplet ,tuplet)
530 (define bracket ,bracket)
532 (define crescendo ,crescendo)
533 (define volta ,volta)
534 (define bezier-sandwich ,bezier-sandwich)
535 (define dashed-slur ,dashed-slur)
536 (define decrescendo ,decrescendo)
537 (define end-output ,end-output)
538 (define experimental-on ,experimental-on)
539 (define filledbox ,filledbox)
540 (define font-def ,font-def)
541 (define font-switch ,font-switch)
542 (define generalmeter ,generalmeter)
543 (define pianobrace ,pianobrace)
544 (define header-end ,header-end)
545 (define lily-def ,lily-def)
546 (define header ,header)
547 (define invoke-char ,invoke-char)
548 (define invoke-dim1 ,invoke-dim1)
549 (define placebox ,placebox)
550 (define rulesym ,rulesym)
551 (define select-font ,select-font)
552 (define start-line ,start-line)
554 (define stop-line ,stop-line)
555 (define stop-last-line ,stop-line)
558 ((eq? action-name 'tuplet) tuplet)
559 ((eq? action-name 'beam) beam)
560 ((eq? action-name 'bezier-sandwich) bezier-sandwich)
561 ((eq? action-name 'bracket) bracket)
562 ((eq? action-name 'char) char)
563 ((eq? action-name 'crescendo) crescendo)
564 ((eq? action-name 'dashed-slur) dashed-slur)
565 ((eq? action-name 'decrescendo) decrescendo)
566 ((eq? action-name 'experimental-on) experimental-on)
567 ((eq? action-name 'filledbox) filledbox)
568 ((eq? action-name 'select-font) select-font)
569 ((eq? action-name 'volta) volta)
570 (else (error "unknown tag -- PS-SCM " action-name))
575 ; Russ McManus, <mcmanus@IDT.NET>
577 ; I use the following, which should definitely be provided somewhere
578 ; in guile, but isn't, AFAIK:
582 (define (hash-table-for-each fn ht)
584 ((= i (vector-length ht)))
585 (do ((alist (vector-ref ht i) (cdr alist)))
587 (fn (car (car alist)) (cdr (car alist))))))
589 (define (hash-table-map fn ht)
592 ((= i (vector-length ht)) (reverse ret-ls))
593 (do ((alist (vector-ref ht i) (cdr alist)))
595 (set! ret-ls (cons (fn (car (car alist)) (cdr (car alist))) ret-ls)))))