1 ;;;; grob-description.scm -- part of generated backend documentation
3 ;;;; source file of the GNU LilyPond music typesetter
5 ;;;; (c) 1998--20.301 Han-Wen Nienhuys <hanwen@cs.uu.nl>
6 ;;;; Jan Nieuwenhuizen <janneke@gnu.org>
8 ; distances are given in stafflinethickness (thicknesses) and
9 ; staffspace (distances)
11 ;;; WARNING: the meta field should be the last one.
13 ;; TODO: junk the meta field in favor of something more compact?
14 (define all-grob-descriptions
18 (molecule-callback . ,Local_key_item::brew_molecule)
19 (X-offset-callbacks . (,Side_position_interface::aligned_side))
20 (after-line-breaking-callback . ,Local_key_item::after_line_breaking)
24 (paren-cautionaries . #t)
26 (meta . ,(grob-description accidentals-interface font-interface side-position-interface))
31 (X-extent-callback . ,Arpeggio::width_callback)
32 (Y-extent-callback . #f)
33 (molecule-callback . ,Arpeggio::brew_molecule)
34 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
35 (X-offset-callbacks . (,Side_position_interface::aligned_side))
37 (staff-position . 0.0)
38 (meta . ,(grob-description arpeggio-interface side-position-interface font-interface))
43 (break-align-symbol . staff-bar)
45 (break-glyph-function . ,default-break-barline)
46 (bar-size-procedure . ,Bar_line::get_staff_bar_size)
47 (molecule-callback . ,Bar_line::brew_molecule)
48 (visibility-lambda . ,all-visible)
50 (before-line-breaking-callback . ,Bar_line::before_line_breaking)
52 (time-signature . (extra-space . 0.75))
53 (custos . (minimum-space . 2.0))
54 (clef . (minimum-space . 1.0))
55 (begin-of-note . (extra-space . 1.3))
59 ;; Ross. page 151 lists other values, we opt for a leaner look
63 (hair-thickness . 1.6)
64 (thick-thickness . 6.0)
65 (meta . ,(grob-description bar-line-interface font-interface))
71 (molecule-callback . ,Text_item::brew_molecule)
73 (visibility-lambda . ,begin-of-line-visible)
77 (font-relative-size . -1)
78 (Y-offset-callbacks . (,Side_position_interface::aligned_side))
79 (meta . ,(grob-description
80 side-position-interface
81 text-interface font-interface break-aligned-interface))
86 (molecule-callback . ,brew-bass-figure)
87 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self))
89 (font-family . number)
90 (font-relative-size . -1)
94 (meta . ,(grob-description text-interface font-interface ))
98 ;; todo: clean this up a bit: the list is getting
100 ;(molecule-callback . ,Beam::brew_molecule)
101 (molecule-callback . ,New_beam::brew_molecule)
102 (concaveness-threshold . 0.08)
103 (position . (#f . #f))
104 (y-dy-callbacks . (,Beam::least_squares
109 ,Beam::do_quantise_y))
111 (position-callbacks . (,New_beam::least_squares
112 ,New_beam::check_concave
113 ,New_beam::slope_damping
114 ,New_beam::quantise_position
115 ,New_beam::user_override))
117 (thickness . 0.48) ; in staff-space
118 (before-line-breaking-callback . ,Beam::before_line_breaking)
119 ;;(after-line-breaking-callback . ,Beam::after_line_breaking)
120 (after-line-breaking-callback . (,New_beam::after_line_breaking
121 ,New_beam::least_squares
122 ,New_beam::check_concave
123 ,New_beam::slope_damping
124 ,New_beam::quantise_position
125 ,New_beam::user_override))
126 (neutral-direction . -1)
127 (dir-function . ,beam-dir-majority)
128 (height-quant-function . ,default-beam-dy-quants)
129 (vertical-position-quant-function . ,default-beam-y-quants)
130 (beamed-stem-shorten . (1.0 0.5))
131 (outer-stem-length-limit . 0.2)
133 (flag-width-function . ,default-beam-flag-width-function)
134 (space-function . ,default-beam-space-function)
137 (meta . ,(grob-description beam-interface))
145 (meta . ,(grob-description
154 (X-offset-callbacks . (,Break_align_interface::alignment_callback))
156 (meta . ,(grob-description axis-group-interface))
161 (break-align-symbol . breathing-sign)
164 (key-signature . (minimum-space . 1.5))
165 (staff-bar . (minimum-space . 1.5))
166 (clef . (minimum-space . 2.0))
167 (begin-of-note . (minimum-space . 1.0))
169 (molecule-callback . ,Text_item::brew_molecule)
171 (font-family . music)
172 (text . "scripts-rcomma")
173 (Y-offset-callbacks . (,Breathing_sign::offset_callback))
174 (visibility-lambda . ,begin-of-line-invisible)
175 (meta . ,(grob-description break-aligned-interface text-interface font-interface))
180 (molecule-callback . ,Clef::brew_molecule)
181 (before-line-breaking-callback . ,Clef::before_line_breaking)
183 (font-family . music)
184 (break-align-symbol . clef)
185 (visibility-lambda . ,begin-of-line-visible)
187 (staff-bar . (minimum-space . 3.7))
188 (key-signature . (minimum-space . 4.0))
189 (time-signature . (minimum-space . 4.2))
190 (begin-of-note . (minimum-space . 5.0))
192 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
193 (meta . ,(grob-description clef-interface font-interface break-aligned-interface ))
198 (molecule-callback . ,Chord_name::brew_molecule)
199 (after-line-breaking-callback . ,Chord_name::after_line_breaking)
200 (chord-name-function . ,default-chord-name-function)
201 (font-family . roman)
202 (meta . ,(grob-description font-interface text-interface chord-name-interface))
207 (break-align-symbol . custos)
209 (molecule-callback . ,Custos::brew_molecule)
210 (visibility-lambda . ,end-of-line-visible)
212 (neutral-position . 0)
213 (neutral-direction . -1)
214 (adjust-if-on-staffline . #t)
215 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
216 (font-family . music)
218 (begin-of-note . (minimum-space . 0.0))
220 (meta . ,(grob-description custos-interface staff-symbol-referencer-interface break-aligned-interface) )
228 (X-extent-callback . ,Axis_group_interface::group_extent_callback)
230 (X-offset-callbacks . (,Dot_column::side_position))
231 (meta . ,(grob-description dot-column-interface axis-group-interface))
236 (molecule-callback . ,Dots::brew_molecule)
238 (staff-position . 0.0)
239 (Y-offset-callbacks . (,Dots::quantised_position_callback ,Staff_symbol_referencer::callback))
240 (meta . ,(grob-description font-interface dots-interface ))
243 (DoublePercentRepeat .
245 (molecule-callback . ,Percent_repeat_item_interface::double_percent)
248 (font-family . music)
251 (break-align-symbol . staff-bar)
252 (visibility-lambda . ,begin-of-line-invisible)
253 (meta . ,(grob-description font-interface percent-repeat-interface))
258 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self))
259 (molecule-callback . ,Text_item::brew_molecule)
260 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
261 (self-alignment-X . 0)
263 (no-spacing-rods . #t)
264 (script-priority . 100)
266 (font-family . dynamic)
267 (font-shape . italic)
268 (self-alignment-Y . 0)
269 (meta . ,(grob-description font-interface text-interface dynamic-interface))
276 (minimum-space . 1.2)
278 (meta . ,(grob-description dynamic-interface axis-group-interface side-position-interface))
283 (break-align-symbol . left-edge)
284 (X-offset-callbacks . (,Break_align_interface::alignment_callback))
285 (X-extent-callback . ,Grob::point_dimension_callback)
288 (time-signature . (extra-space . 0.0))
289 (staff-bar . (extra-space . 0.0))
290 (breathing-sign . (minimum-space . 0.0))
291 (clef . (extra-space . 1.0))
292 (begin-of-note . (extra-space . 0.0))
293 (key-signature . (extra-space . 0.0))
295 (meta . ,(grob-description break-aligned-interface))
300 (molecule-callback . ,Text_item::brew_molecule)
301 (X-offset-callbacks . (,Side_position_interface::centered_on_parent
302 ,Side_position_interface::aligned_on_self))
305 (self-alignment-X . 0)
306 (self-alignment-Y . 0)
307 (font-family . number)
308 (font-relative-size . -3)
309 (font-shape . upright)
310 (meta . ,(grob-description finger-interface font-interface
311 text-script-interface text-interface side-position-interface))
315 (HaraKiriVerticalGroup
317 (Y-offset-callbacks . (,Hara_kiri_group_spanner::force_hara_kiri_callback))
318 (Y-extent-callback . ,Hara_kiri_group_spanner::y_extent)
320 (meta . ,(grob-description axis-group-interface hara-kiri-group-interface))
325 (molecule-callback . ,Hairpin::brew_molecule)
328 (spacing-procedure . ,Spanner::set_spacing_rods)
329 (minimum-length . 2.0)
330 (if-text-padding . 1.0)
331 (width-correct . -1.0)
333 (dash-thickness . 1.2)
335 (self-alignment-Y . 0)
336 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self))
337 (meta . ,(grob-description hairpin-interface dynamic-interface))
343 (Y-offset-callbacks . (,Side_position_interface::aligned_on_self
344 ,Side_position_interface::aligned_on_support_refpoints))
345 ;; huh? what's this for?
348 (left-edge . (extra-space . 1.0))
351 (self-alignment-Y . 0)
352 (molecule-callback . ,Text_item::brew_molecule)
353 (break-align-symbol . instrument-name)
354 (visibility-lambda . ,begin-of-line-visible)
356 (font-family . roman)
357 (meta . ,(grob-description font-interface text-interface break-aligned-interface))
362 (molecule-callback . ,Key_signature_interface::brew_molecule)
364 (time-signature . (extra-space . 1.25))
365 (staff-bar . (extra-space . 1.1))
366 (begin-of-note . (extra-space . 2.5))
368 (break-align-symbol . key-signature)
369 (visibility-lambda . ,begin-of-line-visible)
371 (meta . ,(grob-description key-signature-interface font-interface break-aligned-interface))
379 (minimum-length . 0.5)
380 (maximum-length . 100)
381 (molecule-callback . ,Hyphen_spanner::brew_molecule)
382 (Y-extent-callback . ,Grob::point_dimension_callback)
383 (meta . ,(grob-description lyric-hyphen-interface ))
389 (meta . ,(grob-description line-of-score-interface axis-group-interface))
394 (molecule-callback . ,Lyric_extender::brew_molecule)
395 (height . 0.8) ; stafflinethickness;
396 (right-trim-amount . 0.5)
397 (Y-extent-callback . ,Grob::point_dimension_callback)
398 (meta . ,(grob-description lyric-extender-interface))
403 (molecule-callback . ,Text_item::brew_molecule)
404 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
405 (self-alignment-X . 0)
408 (ignore-length-mismatch . #f)
409 (begin-alignment . 4)
411 (font-family . roman)
412 (font-shape . upright)
413 (meta . ,(grob-description lyric-syllable-interface text-interface font-interface ))
419 (auto-properties . #f)
421 (porrectus-width . 2.4)
422 (line-thickness . 1.0)
425 (molecule-callback . ,Porrectus::brew_molecule)
426 (meta . ,(grob-description porrectus-interface))
431 (molecule-callback . ,Text_item::brew_molecule)
432 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
433 (self-alignment-X . 0)
437 (font-family . roman)
438 (font-shape . upright)
439 (font-relative-size . 1)
440 (visibility-lambda . ,end-of-line-invisible)
442 (meta . ,(grob-description mark-interface side-position-interface))
447 (spacing-procedure . ,Multi_measure_rest::set_spacing_rods)
448 (molecule-callback . ,Multi_measure_rest::brew_molecule)
449 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
452 (padding . 2.0) ; staffspace
453 (minimum-width . 12.5) ; staffspace
454 (font-family . number)
455 (font-relative-size . 1)
456 (meta . ,(grob-description multi-measure-rest-interface rest-interface font-interface ))
462 ;; Ugh, should not be hard-coded.
464 (meta . ,(grob-description
465 note-collision-interface axis-group-interface
472 (meta . ,(grob-description axis-group-interface note-column-interface))
478 (molecule-callback . ,Note_head::brew_molecule)
479 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
480 (stem-attachment-function . ,note-head-style->attachment-coordinates)
481 (meta . ,(grob-description rhythmic-head-interface font-interface note-head-interface))
489 (X-extent-callback . #f)
490 (Y-extent-callback . #f)
491 (molecule-callback . ,Line_spanner::brew_molecule)
492 (meta . ,(grob-description line-spanner-interface))
500 (X-extent-callback . #f)
501 (Y-extent-callback . #f)
502 (molecule-callback . ,Line_spanner::brew_molecule)
503 (meta . ,(grob-description line-spanner-interface))
508 (molecule-callback . ,Text_item::brew_molecule)
509 (font-family . roman)
510 (meta . ,(grob-description note-name-interface font-interface))
515 (self-alignment-X . 0)
517 (visibility-lambda . ,begin-of-line-visible)
518 (X-offset-callbacks . (,Side_position_interface::centered_on_parent ,Side_position_interface::aligned_on_self))
519 (Y-offset-callbacks . (,Side_position_interface::aligned_side))
520 (molecule-callback . ,Text_item::brew_molecule)
521 (font-shape . italic)
522 (font-family . roman)
523 (meta . ,(grob-description text-interface font-interface ))
529 ; (molecule-callback . ,Paper_column::brew_molecule) (font-name . "cmr8")
530 (meta . ,(grob-description paper-column-interface axis-group-interface spaceable-element-interface))
535 (molecule-callback . ,Slur::brew_molecule)
537 (spacing-procedure . ,Spanner::set_spacing_rods)
538 (minimum-length . 1.5)
539 (after-line-breaking-callback . ,Slur::after_line_breaking)
540 (extremity-rules . ,default-slur-extremity-rules)
541 (extremity-offset-alist . ,default-phrasing-slur-extremity-offset-alist)
542 (de-uglify-parameters . ( 1.5 0.8 -2.0))
543 (Y-extent-callback . ,Slur::height)
544 (details . ((height-limit . 2.0) (ratio . 0.333) (force-blowfit . 0.5)
545 (bezier-pct-c0 . -0.2) (bezier-pct-c3 . 0.000006)
546 (bezier-pct-out-max . 0.8) (bezier-pct-in-max . 1.2)
547 (bezier-area-steps . 1.0)))
550 (attachment . (#f . #f))
551 (attachment-offset . ((0 . 0) . (0 . 0)))
553 (meta . ,(grob-description slur-interface))
556 (NonMusicalPaperColumn
559 ; (molecule-callback . ,Paper_column::brew_molecule) (font-name . "cmr8")
560 (meta . ,(grob-description paper-column-interface
561 axis-group-interface spaceable-element-interface))
566 (spacing-procedure . ,Multi_measure_rest::set_spacing_rods)
567 (molecule-callback . ,Multi_measure_rest::percent)
570 (minimum-width . 12.5) ; staffspace
571 (font-family . music)
572 (meta . ,(grob-description multi-measure-rest-interface font-interface percent-repeat-interface))
577 (molecule-callback . , Percent_repeat_item_interface::beat_slash)
580 (meta . ,(grob-description percent-repeat-interface))
584 (after-line-breaking-callback . ,Rest::after_line_breaking)
585 (X-extent-callback . ,Rest::extent_callback)
586 (Y-extent-callback . ,Rest::extent_callback)
587 (molecule-callback . ,Rest::brew_molecule)
588 (Y-offset-callbacks . (,Staff_symbol_referencer::callback))
589 (minimum-beam-collision-distance . 1.5)
590 (meta . ,(grob-description
591 rhythmic-head-interface
592 staff-symbol-referencer-interface
598 (minimum-distance . 0.75)
599 (meta . ,(grob-description rest-collision-interface ))
604 ;; don't set direction here: it breaks staccato.
605 (molecule-callback . ,Script::brew_molecule)
607 (X-offset-callbacks . (,Side_position_interface::centered_on_parent))
608 (before-line-breaking-callback . ,Script::before_line_breaking)
609 (font-family . music)
610 (meta . ,(grob-description script-interface side-position-interface font-interface))
615 (before-line-breaking-callback . ,Script_column::before_line_breaking)
616 (meta . ,(grob-description script-column-interface))
621 (molecule-callback . ,Slur::brew_molecule)
623 (spacing-procedure . ,Spanner::set_spacing_rods)
624 (minimum-length . 1.5)
625 (after-line-breaking-callback . ,Slur::after_line_breaking)
626 (extremity-rules . ,default-slur-extremity-rules)
627 (extremity-offset-alist . ,default-slur-extremity-offset-alist)
628 (de-uglify-parameters . ( 1.5 0.8 -2.0))
629 (Y-extent-callback . ,Slur::height)
630 (details . ((height-limit . 2.0) (ratio . 0.333) (force-blowfit . 0.5)
631 (bezier-pct-c0 . -0.2) (bezier-pct-c3 . 0.000006)
632 (bezier-pct-out-max . 0.8) (bezier-pct-in-max . 1.2)
633 (bezier-area-steps . 1.0)))
636 (attachment . (#f . #f))
637 (attachment-offset . ((0 . 0) . (0 . 0)))
639 (meta . ,(grob-description slur-interface))
644 (spacing-procedure . ,Spacing_spanner::set_springs)
645 (grace-space-factor . 0.8)
647 (shortest-duration-space . 2.0)
648 (spacing-increment . 1.2)
650 (X-extent-callback . #f)
651 (Y-extent-callback . #f)
654 (meta . ,(grob-description spacing-spanner-interface))
659 (break-align-symbol . staff-bar)
660 (bar-size-procedure . ,Span_bar::get_bar_size)
661 (molecule-callback . ,Span_bar::brew_molecule)
662 (visibility-lambda . ,begin-of-line-invisible)
663 (X-extent-callback . ,Span_bar::width_callback)
666 (before-line-breaking-callback . ,Span_bar::before_line_breaking)
670 ;; Ross. page 151 lists other values, we opt for a leaner look
674 (hair-thickness . 1.6)
675 (thick-thickness . 6.0)
676 (meta . ,(grob-description span-bar-interface bar-line-interface ))
682 (molecule-callback . ,Text_item::brew_molecule)
683 (break-align-symbol . clef)
684 (visibility-lambda . ,begin-of-line-visible)
685 (font-family . roman)
686 (meta . ,(grob-description break-aligned-interface text-interface font-interface))
692 (X-extent-callback . #f)
693 (stem-spacing-correction . 0.4)
694 (Y-extent-callback . #f)
695 (meta . ,(grob-description staff-spacing-interface))
699 (X-extent-callback . #f)
700 (Y-extent-callback . #f)
701 (stem-spacing-correction . 0.5)
703 (meta . ,(grob-description note-spacing-interface))
708 (molecule-callback . ,Staff_symbol::brew_molecule)
712 (meta . ,(grob-description staff-symbol-interface ))
717 (molecule-callback . ,Text_item::brew_molecule)
719 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
720 (Y-offset-callbacks .
721 (,Side_position_interface::aligned_side
722 ,Side_position_interface::centered_on_parent))
723 (no-spacing-rods . #t)
724 (font-shape . italic)
725 (self-alignment-X . 0)
726 (meta . ,(grob-description text-interface font-interface))
731 (before-line-breaking-callback . ,Stem::before_line_breaking)
732 (molecule-callback . ,Stem::brew_molecule)
734 (beamed-lengths . (0.0 2.5 2.0 1.5))
735 (beamed-minimum-lengths . (0.0 1.5 1.25 1.0))
737 ;; Stems in unnatural (forced) direction should be shortened,
738 ;; according to [Roush & Gourlay]. Their suggestion to knock off
739 ;; a whole staffspace seems a bit drastical: we'll do half.
741 (lengths . (3.5 3.5 3.5 4.5 5.0))
742 (stem-shorten . (1.0 0.5))
743 ; if stem is on middle line, choose this direction.
744 (neutral-direction . -1)
745 (X-offset-callbacks . (,Stem::off_callback))
746 (X-extent-callback . ,Stem::dim_callback)
747 (Y-extent-callback . ,Stem::height)
748 (adjust-if-on-staffline . #t)
749 (font-family . music)
750 (meta . ,(grob-description stem-interface font-interface))
755 (molecule-callback . ,Stem_tremolo::brew_molecule)
756 (Y-extent-callback . ,Stem_tremolo::height)
757 (X-extent-callback . #f)
759 (beam-width . 2.0) ; staff-space
760 (beam-thickness . 0.42) ; staff-space
761 (beam-space-function . ,default-beam-space-function)
762 (meta . ,(grob-description stem-tremolo-interface ))
767 (meta . ,(grob-description separation-item-interface ))
770 (SeparatingGroupSpanner
772 (spacing-procedure . ,Separating_group_spanner::set_spacing_rods)
773 (meta . ,(grob-description separation-spanner-interface))
778 (no-spacing-rods . #t)
779 (molecule-callback . ,Sustain_pedal::brew_molecule)
780 (self-alignment-X . 0)
782 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
783 (Y-offset-callbacks .
784 (,Side_position_interface::aligned_side
785 ,Side_position_interface::centered_on_parent))
787 (meta . ,(grob-description sustain-pedal-interface side-position-interface font-interface))
793 (molecule-callback . ,System_start_delimiter::brew_molecule)
794 (collapse-height . 5.0)
795 (font-family . braces)
796 (Y-extent-callback . #f)
797 (meta . ,(grob-description system-start-delimiter-interface font-interface))
802 (Y-extent-callback . #f)
803 (molecule-callback . ,System_start_delimiter::brew_molecule)
809 (bracket-collapse-height . 1)
811 (meta . ,(grob-description system-start-delimiter-interface ))
816 (Y-extent-callback . #f)
817 (molecule-callback . ,System_start_delimiter::brew_molecule)
820 (after-line-breaking-callback . ,System_start_delimiter::after_line_breaking)
821 (meta . ,(grob-description system-start-delimiter-interface ))
826 (molecule-callback . ,Text_item::brew_molecule)
827 (no-spacing-rods . #t)
830 ;; todo: add X self alignment?
832 (font-family . roman)
833 (meta . ,(grob-description text-script-interface text-interface side-position-interface font-interface ))
838 (molecule-callback . ,Text_spanner::brew_molecule)
839 (font-family . roman)
842 ;; urg, only for (de)cresc. text spanners
843 (if-text-padding . 1.0)
847 (meta . ,(grob-description text-spanner-interface font-interface))
852 (molecule-callback . ,Tie::brew_molecule)
853 (spacing-procedure . ,Spanner::set_spacing_rods)
854 (staffline-clearance . 0.35)
855 (details . ((ratio . 0.333) (height-limit . 1.0)))
859 (minimum-length . 2.5)
860 (meta . ,(grob-description tie-interface ))
865 (after-line-breaking-callback . ,Tie_column::after_line_breaking)
866 (meta . ,(grob-description tie-column-interface ))
871 (molecule-callback . ,Time_signature::brew_molecule)
872 (break-align-symbol . time-signature)
873 (visibility-lambda . ,all-visible)
875 (begin-of-note . (extra-space . 2.0))
876 (staff-bar . (minimum-space . 2.0))
880 (font-family . number)
881 (meta . ,(grob-description time-signature-interface font-interface))
888 (after-line-breaking-callback . ,Tuplet_bracket::after_line_breaking)
889 (molecule-callback . ,Tuplet_bracket::brew_molecule)
890 (font-family . roman)
891 (font-shape . italic)
892 (font-relative-size . -1)
893 (meta . ,(grob-description text-interface
894 tuplet-bracket-interface font-interface))
899 (molecule-callback . ,Text_item::brew_molecule)
900 (font-family . roman)
901 (font-shape . italic)
902 (no-spacing-rods . #t)
903 (self-alignment-X . 0)
905 (X-offset-callbacks . (,Side_position_interface::aligned_on_self))
906 (Y-offset-callbacks .
907 (,Side_position_interface::aligned_side
908 ,Side_position_interface::centered_on_parent))
909 (meta . ,(grob-description text-interface font-interface))
914 (molecule-callback . ,Volta_spanner::brew_molecule)
918 (Y-offset-callbacks . (,Side_position_interface::aligned_side))
919 (thickness . 1.6) ; stafflinethickness
920 (height . 2.0) ; staffspace;
922 (font-family . number)
923 (font-relative-size . -2)
924 (meta . ,(grob-description volta-bracket-interface side-position-interface font-interface))
930 (Y-extent-callback . ,Axis_group_interface::group_extent_callback)
931 (X-extent-callback . #f)
933 (meta . ,(grob-description align-interface axis-group-interface))
939 (meta . ,(grob-description axis-group-interface))
947 (define (completize-grob-entry x)
948 "transplant assoc key into 'name entry of 'meta of X
950 (let* ((name-sym (car x))
952 (metaentry (cdr (assoc 'meta entry)))
953 (new-metaentry (assoc-set! metaentry 'name name-sym))
956 (cons name-sym (assoc-set! entry 'meta new-metaentry))
959 (set! all-grob-descriptions (map completize-grob-entry all-grob-descriptions))
963 ; (display (map pair? all-grob-descriptions))
966 ;; make sure that \property Foo.Bar =\turnOff doesn't complain
969 ; (display (car x)) (newline)
971 (set-object-property! (car x) 'translation-type? list?))
972 all-grob-descriptions)