1 -*-outline-layout:(2 (-1 -1 0 :) 0);outline-stylish-prefixes:nil -*-
4 Features you cannot find in the doco as working, should be
5 mentioned here. This is an assorted collection of stuff that will be
6 done, might be done, or is an idea that I want to think about
8 Most of the items are marked in the code as well
9 Grep for TODO and ugh/ugr/urg.
13 . * input/star-spangled-banner
14 . * mutopia/J.S.Bach/wtk1-fugue2.ly
16 . * fix: text on rests: ridiculous dims
17 . * m=\notes\relative c'''{
20 R2*4 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | \break
21 <{R2*10}{s2 \mark "A"; }> | % Too narrow space for the first rest in
24 [ ) g8-. fis16 ( g ][ ) fis8-. f16 ( g ] |
25 [ ) f8-. e16 ( f ][ ) e8-. es16 ( f ] |
26 [ ) es8 \f c16 ( d][es8 d16 c ] |
27 ) d4 r8 [g16 \p ( a ] |
28 [ ) g8-. fis16 ( g ][ ) fis8-. f16 ( g ] | \break
29 ) c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 |
40 \OrchestralPartStaffContext
44 . * - Look at input/test/span-bars.ly. The staff lines extend too far
45 to the left on the note systems including the GrandStaff.
47 . *P.P.S. It can be cool in mudela-book to distinguish in pre,postMudelaExample,
48 whether MudelaExample is epsed or not: ( if this fragment is floating eps, than 1,
49 otherwise 2). say preMudelaExample[eps]{}, and change it in document body sometimes.
51 . * tetex: mfplain.mem
53 . * default duration? d
54 duration must be not entered explicitely on first note.
55 . * fix singleStaffBracket
56 . * \shape 1st dim skipped?
57 . * turn slope-damping on/off
59 . * fix height of / collisions with lyrics (chords),
60 see input/test/vertical-text.ly; input/test/repeat.ly
61 . * We need feta-din*.mf files for more sizes than 10.
62 . * latex bla.tex broken (titles / \lilyfooter stuff?)
63 . * fix dynamics decently, ie. use kerning & ligatures.
64 . * support_l_arr_ empty in staff-margin's G_staff_side_item
65 . * minVerticalAlign for StaffGroups.
66 . * fix OrchestralScore and Hara-kiri (i.e., fix Coriolan)
67 . * Phrasing: Indicating the textual underlay of a piece, or
68 otherwise dividing a piece into phrases.
70 There are distinct ways of specifying the first two (although at
71 present, they're not properly distinguished) but no distinct way to
72 specify the third. Should there be?
76 . * remove [] in favour of auto-beamer
77 . * In the score, the staff lines extend too far to the left.
78 This is also illustrated in the second score of span-bars.ly
79 as I've pointed out earlier.
80 . *m=\notes\relative c''{
81 \property Staff.instr = "Instr "
90 \property Staff.instr = "Instr "
100 \type Staff = a <{\stemup \property Voice.dynamicDir = \down \m}
101 {\stemdown \property Voice.dynamicDir = \up \n}>
104 . * The minimum distance between different staffs works only within
105 StaffGroups, not between StaffGroups. The Gade Score looks quite
106 strange on the pages where the Timpani and/or Brass sections don't
107 play. I've set the minimum distance with:
109 \OrchestralScoreContext
110 minVerticalAlign = 2.5*\staffheight;
113 I sent a copy of the score to the conductor and his reaction was
114 that it would be easy to fix some "spacing problems" with Finale,
115 if we could convert the score to Finale. I'm not sure what he
116 meant, since we just have had mail conversations so far. Maybe
117 it's the staff distances I mentioned above.
119 . * For the trumpet and horn parts, I wrote two parts on the same
120 staff line in the score. I haven't managed to get different
121 directions of the dynamics for the two parts.
122 Voice.dynamicDir seems to set the direction for the full staff.
123 . * hangOnClef with non-breakable clefs.
124 . * Aha, the problem is the new TeX code generation for changing fonts.
125 > (The explanation below is mostly intended for Han-Wen and Jan)
126 > Before, the font was changed with macros declared separately for
127 > pure TeX and LaTeX, but now all the fonts are declared directly in
128 > the generated code using the low-level TeX commands. This circumvents
129 > the fontencoding mechanism of LaTeX and is a potential source of
130 > problems also for us users of the Latin-1 character set.
131 > I think it still works since the inputencoding latin1 is
132 > declared by ly2dvi, but it still means that e.g. an o with
133 > umlaut is typeset as a combination of the two symbols 'o' and
134 > 'umlaut' instead of as a single character, as would be the case
135 > if fontencoding OT1 had been used. This shouldn't give any
136 > difference in layout, though. One of the main argument for using
137 > fontencoding OT1 is for the hyphenation mechanism to work, an
138 > argument that's clearly irrelevant in our application. Yet we
139 > see the problem for August.
140 . * Check gcc 2.8.1 compatibility
141 . * Document source code.
142 . * limit memory usage; the full coriolan takes up too much resources.
143 . * Sort items after breaking in order of linenumber. Then be more
144 eficient with finding
145 . * Do Mark & sweep GC for Score_elems
146 . * make "in-between" engraver (Tie, Extender)
147 . * textWidthFatness property
148 . * The Lilypond accidental symbols are available through the TeX macros,
149 \textflat, \textsharp and \textnatural defined in the init file
150 lilyponddefs.tex. All the symbols are defined in the files fetaXX.tex
151 where XX corresponds to the size. I don't know where (or even if) they
152 are installed but they are generated in the mf/out/ directory during the
154 . * compulsory hshift
155 . * 1. Can Lily be told where to start numbering?
157 . * profile atom smobs
158 . * make dependencies () a virtual function.
159 . * fix Repeated_music design
160 . * one big ly2dvi input that includes *all* tests.
161 . * Don't use boolean properties (0,1), instead check existence
163 . * store req -> element, element -> element causes for warnings
164 . * junk Text_def, use G_text_item in stead.
166 . * fix partial measures in meaningful way.
167 . * fix AFM for BlueSky AFM files.
168 . * working notehead style.
169 . * remove links to non-free SW.
170 . * add scripts to bars eg. |^"bla"
171 . * relative mode for mi2mu
172 . * uniformise recent feta contributions.
173 . * use SCM and Molecules for {accordeon stuff, }
174 . * bigger and fatter 4/4 C
175 . * sort out directory stuff.
177 . * -I option per filetype?
179 . * todo doc left/rightbeamcount
180 . * doc Single_malt_grouping_item
181 . * ly2dvi/lilypond logfile.
182 . * How can I specify a chord whose duration is longer than a whole note?
183 \type ChordNames { \chord{ A1*2-min } }
185 gives me a parse error. And \times doesn't work either. I can't use
186 a spacer note. So it seems to be impossible to have long chords of
187 general length. Of course, in the example above I can use \breve.
188 But what if I want a chord that lasts for 3 whole notes? Or what
189 about 2.5 whole notes? Is there a mechanism for getting this kind of
194 Use of semicolons is still rather confusing. They are obligatory
195 after some types of assignments and illegal after others.
197 \property foo=bar illegal
198 foo = 3 at top level illegal
199 foo = 3 inside \paper obligatory
200 foo = \notes{ ...} top level illegal
201 foo = \translator{ } in \paper obligatory
203 As far as I can tell, the sole accomplishment of this syntactic
204 irregularity is to keep the user as confused as possible.
207 I was trying to get interstaff beams to work and did this:
211 \type Staff=one \notes\relative c'{
213 [c8 c \translator Staff=two \stemup c c]
214 \translator Staff=one
216 [ b8 \translator Staff=two a8]
217 \translator Staff=one
220 \type Staff=two \notes{ \clef bass; s1 }
225 minVerticalAlign = 3.0*\staffheight;
226 maxVerticalAlign = 3.0*\staffheight;
232 The beams are at the right angle, but they aren't in the right place.
233 . * fractional chord durs.
234 . * hang Item on Spanner
235 . * remove Interval dim_ from Dimension_cache and rename the struct.
236 . * do --safe for PS output?
237 . * convert-mudela --output
238 . * Staff_margin (with a partial measure.)
239 . * fix pletvisibility properties:
240 . * bracket on/off/no-bracket-when-beam
241 . * num on/off/no-num-when-beam
243 . * junk text{sharp,flat,etc}
244 . * fix convert-mudela manpage
245 . * decimal point in \paper {}
246 . * { \voiceone <a'4.*2/3 d''4.*2/3 fis''4.*2/3> [g''8 fis'' e''] d''4 |}
248 { \voicetwo d'4 d'2.*2/3 } spacing
249 . * tied notes for MIDI
250 . * sharp /flat on trills (in MIDI ??)
251 . * scm-ify \property values.
252 . * move class Lookup {} into scm
253 . * collisions/voices \voiceone \voicetwo are broken; see
255 . * \breathmark TeX macro
256 . * catch GUILE errors?
257 . * add new glyphs to font.ly
258 . * formatting of input stuff.
259 . * \notes{ a \< b \cr } vs \notes{ a \< b \! }
260 . * if possible, it might be nice for a warning to appear if someone does
261 \translator with no name and without assigning it to an
263 . * space after bars?
264 . * 'hinterfleisch' before bar (e.g. wtk1-fugue2)?
265 . * \type Voice \times 2/3 { [c8 c16 c16 c16 c16] }
266 . * repeat bars: need distance after ":|" and before "|:"
267 . * Summary of minor spelling irregularities:
268 . * capitalization/use of underscores in property names
269 . * fix SkipBars -> skipBars
272 lbheel = \script { "bheel" 0 0 -1 0 0 }
273 rbheel = \script { "bheel" 0 0 1 0 0 }
274 lbtoe = \script { "btoe" 0 0 -1 0 0 }
275 rbtoe = \script { "btoe" 0 0 1 0 0 }
276 lfheel = \script { "fheel" 0 0 -1 0 0 }
277 rfheel = \script { "fheel" 0 0 1 0 0 }
278 lftoe = \script { "ftoe" 0 0 -1 0 0 }
279 rftoe = \script { "ftoe" 0 0 1 0 0 }
281 portato= \script { "portato" 0 -1 0 1 0 }
283 . * bottomnote for ly2dvi
284 . * cf'able ly2dvi tagline.
288 . * Align_element::padding ?
289 . * uniformise property names...
290 . * ydirection <-> yDirection
291 . * rather allow '_' in identifiers first (i.e. junk ^ and _),
293 . * typo checks on property names?
294 . * use streambufs and iostream
295 to provide IO handling for TeX stream, mudela stream, data-file.
296 . * seriously buffer TeX output (do profile of writing .5 mb TeX file.)
297 . * strip EXEs before installing
298 . * zip target for binary windows dist (JBR)
299 . * junking \skip req in lyrics
301 . * \type -> \context ?
304 . * \bla {} vs \bla ;
305 . * mix engraver hacking with music ?
306 . * \once\property KEY = VAL
307 . * \addtranslator, \removetranslator
308 . * junk ^ and _ for scripts
309 . * junk _ for lyrics.
310 . * abstract grammar.
311 . * percussion note heads
312 . * mi2mu empty staffs.
313 . * horizontal centering of dynamics
315 . * stable make/config stuff
316 . * $DEPENDENCIES_OUTPUT support
317 . * Xdvi zooming ?! Try to understand GS garbage collection.
318 gs: Error: /undefined in draw_beam
320 . * fix vertical alignment and stafflines
321 . * GrandStaff needs more work -- I want a single word
322 `harpsichord' to the left of the grandstaff, not one on each
323 stave. (Organ staff -- with separate pedal -- but common
324 properties may be something to think about. Of course for
325 organ you want to be able to give stop indications on the way
326 through, so the \property Voice.Instrument would be a stop,
327 and \property GrandStaff.instrument would be PipeOrgan...)
328 . * revise the Score_priority_align_engraver concept. It sucks.
329 . * make new VoiceOne, VoiceTwo, VoiceThree contexts with
330 ydirection and hshift preset
331 . * *.yo: fix pod manpage layout legacy
332 . * text-items clash with stems/beams
333 . * --include, -I option for ly2dvi (pass on to lily)
334 . * fix placement of beam-less abbrev
336 <{\voiceone cis4. cis8 cis4 | cis4 cis cis | r1 }
337 {\voicetwo cis,4 r r | r2. | r1 }> |
339 . * try to use template<Type> iso MACRO(Type)
340 . * Musical_pitch (analogous to Duration and Rhythmic_req)
341 think about, analogous to pitch:
342 * { a4 a16 } c <-- duration of c?
343 * < a4 b8 > c <-- duration of c?
345 . * fix audio-items (don't use (input) requests, but copy data)
346 . * make sure all ex's have a mudela-version
347 . * do rest-collisions for Multi_measure_rests as well.
348 . * split error/warning in error/warning/non_fatal_error
349 . * add a Duration_convert member to Duration_iter to set parameters.
350 Junk global duration settings.
351 . * minimum length second part broken tie
352 . * en-,discouraged linebreaking:
353 . * handle DISALLOW < penalty > FORCE
354 . * discourage breaking of slurs
355 . * fix variable define/lookup parser global<->paper
356 . * fix title/instrument placements; see input/test/title.ly
357 . * <\voiceone c4. \voicetwo c4>
358 . * add full cello suites to web site (kom op, Maarten!)
359 . * Rethink Time_description
360 * \cadenza , \meter, \grouping should all be \properties
363 . * abbrev -> tremolo
364 . * abbreviation-beam -> (measured/unmeasured) tremolo
365 . * partial -> anacrouse
367 . * robustify Beam (in case of no stems, 32nd notes)
368 . * decentralised spring factory
369 . * move paper vars into engraver properties
370 . * check for groff / troff/ nroff et
371 . * more intelligent file searching
372 . * make LilyPond RPM fully relocatable
373 . * disable spaces in TeX stuff
374 . * handle ^C for tmp/file creation.
375 . * dots & rest collisions.
381 . * versioning for Feta
382 . * the warning about the negative slur/tie length appears twice
384 . * The `3' in the meter key is a one or two pixels too thin (at 600dpi)
386 . * the bracket is ugly (wings are too parabolic, should be more circular)
387 . * better hshift (dots, distance, head dependent)
388 . * clefs (AG): The "8" should appear closer to the actual clef,
390 . * put errorlevel in Input class
391 . * junk nesting slurs
392 . * integrate midi-elts from mi2mu and lily?
394 . * GNU diff 2.7: diff -rN does not see a new directory with empty file
395 . * check out GCC signatures?
397 f = fopen ("/dev/null", "r")
399 .* 3RD PARTY PROJECTS:
400 . * make GCC warn about ctor that leaves member vars uninitialised.
402 . * 'double-fix' mode: ignore identical fix, rather than suggest
403 to revert patch direction when (more or less? exactly) the same
407 . * fix position of bar number
408 . * stack scripts in chords:
409 % fingering: footing:
410 < a-4 c-2 g-1 > < c-\ltoe e-\lheel >
412 . * slur parts as a script
413 . * stack parameterised scripts for fingering and footing:
416 . * automatically add a \version if not present.
419 . * convert-mudela -e empty.ly
421 . * emacs mudela-mode
422 . * should handle block comments too.
423 . * handle lexer modes (\header, \melodic, \lyric) etc.
426 . * fontlock: \melodic \melodic
428 . * use properties for:
435 . * optimal pagebreaking.
437 . * Unicode support? -> man 7 unicode
440 . * detect of 16/8 bit files
441 . * examples to go with it.
444 . * write a faster Spring_spacer (without matrices if possible)
445 . * relate energybound to linelen unitspace fontsize etc.
446 . * used fixed point fp?
449 . * output header info to MIDI too.
451 . * a musical dictionary. See Documentation/vocabulary-*, other
461 . * guitar chords (fret diagrams)
462 . * other chord name styles (american(?) style)
467 . * derive lily_stream, Dstream, texstream from ostream?
468 . * indentable stream as baseclass for TeX stream, lily stream, Dstream.
469 . * use dstream feature in mi2mu
470 . * integrate IO checking into stream class
477 . * add to MIDI output:
479 . * ornaments (and trills?)
484 . * account for rhythmic position in measure
488 . * make separate class for Grace_*_engravers
489 (which is at Voice_gravs level)
490 . * make encapsulated spacing problems.
492 . * accidentals per Voice_group
494 . * Output class, handles : (smallish)
495 . * help text /(c) notice?
497 . * warning /errors/progress
498 . * abort on error/warning; exit status
499 . * quiet/ignore-version options
503 . * speed up PS code.
504 . * PS lines to .eps files
505 . * write custom prolog
508 . * Common Music Notation
509 . * PostScript output (esp. Beams, Slurs, etc)
510 . * Move all Score_elems, into libmutype.a
514 . * Doc (C) stuff of sheet music
515 . * a better format? SGML? TeX? Info?
516 . * a better tutorial
518 . * more spanners (smallish)
522 . * Rewrite Stem, Beam and Rhythmic_grouping (hairy)
524 . * doc on Rhythmic_grouping
525 . * general shaving on Beam and Stem
526 . * use plet grouping
527 . * separate visual from rhythmic info even more
531 . * Ledger lines, should be separate item: Ledger_lines
532 . * set different line sizes / thicknesses
533 . * beam stem showthrough, inter beam sizes (french vs german style)
536 . * left/right note balls should be handled by Collision:
537 < \multi 2; { \stem 1; <b c> } { <f as b> } >
540 . * merge key{item} & localkey{item}?
541 . * spacing, national styles?
544 . * redo Notehead to allow digits as heads
545 . * add a \tablature {} lexer mode for easy entering
547 . * should adjust stemlength for flag number.
550 . * caching breakpoints
552 . * specify number of lines
556 . * c4 4 4 4 for c4 c4 c4 c4?
567 . * configure pitch_byte
568 . * rest name configurable
573 . * fix confusing naming in Engraver vs Engraver_group_engraver (context)
575 . * progress when creating MIDI elts.
577 . * A range for context errors (eg. mark both { and }. )
579 . * lyric in staff (sharpsharp in staff, text below)
581 . * half sharps/flats
583 . * write Dynamic_line (to group dynamics horizontally)
585 . * use Real for all y positions.
587 . * half-sharps, half-flats
589 . * adaptive accidental spacing.
591 . * handle EOF graciously in error messages.
593 . * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
595 . * stafftypes: voice names/ instrument names.
599 . * % toe to bheel four to five
605 (where "to" is a tiny bow)
607 . * auxilliary file for caching info.
611 . * clean solution for staffsize in items.
616 . * Output data structures of Mudela in XML/SGML.
617 . * create libmudela, or liblily_frontend
618 . * move MIDI stuff (including Quantization) to a ANSI C libmidi library.
619 . * Spacing_request for manually adjusting spacing
620 . * caching breakpoints
621 . * used fixedpoint arithmetic for min. energy.
622 . * move towards incremental algorithms.
623 . * versioning stuff (cvt mudela, mudela, etc.)
624 . * dynamic loading of engravers?
626 Han-Wen Nienhuys <hanwen@cs.uu.nl> writes:
628 > mcmanus@IDT.NET writes:
629 > > > I want different C++ objects (with scheme embedded) to be linked by
630 > > > C++ pointers. I want to access these other objects from the Scheme
631 > > > code, and I want access to these pointers from C++.
633 > > You can do this with a combination of smob's and primitive functions,
634 > > though it may not be be exactly what you wanted. You would have one
635 > > smob for each class in your application, and then you would write a
636 > > primitive function that would return the objects that are linked to a
639 > And the smob and the C++ class are interlinked? Like
642 > Foo_smob *smob_ptr_;
646 > Foo_class *class_ptr_
649 Usually you can get away without having this interlinked structure.
650 One piece of information you need when exporting objects to scheme is
651 the smob tag for your class. You might store this value (a long) into
652 a class static variable, or a file static variable. I'll use a class
653 static variable in this example.
655 I typically use code that works like this (untested code ahead):
658 static long *Foo_smob_tag;
659 SCM obj; // representation as a scheme object, description comes later
662 // call this once on startup
663 void init_Foo_class {
664 static scm_smobfuns type_rec;
666 type_rec.mark = foo_mark;
667 type_rec.free = foo_free;
668 type_rec.print = foo_display;
670 Foo_class::Foo_smob_tag = new int(scm_new_smob(type_rec));
673 When you want to export an object to scheme, you put a pointer to the
674 object itself in the cdr of the cell, and the tag in the car of the
675 cell. The code looks like this:
681 return(SCM_NIMP(obj) && SCM_CAR(obj) == Foo_class::Foo_smob_tag);
684 // given a Scheme representation, return, a C++ representation
688 return((Foo_class*)SCM_CDR(obj));
691 // the SCM representation of the object is stored inside itself
692 // this will become useful when destructor gets called
694 foo_box(Foo_class *foo)
697 SCM_NEWCELL(foo->obj);
698 SCM_SETCAR(foo->obj, Foo_class::Foo_smob_tag);
699 SCM_SETCDR(foo->obj, (SCM)foo);
704 > C++ determines life time, so what is the strategy?
706 What happens now when the destructor gets called? Lets set the cdr to
707 NULL, and then check for that in all of the primitive functions that
708 use your smob. We'll call this notion 'live'; a scheme object is
709 'live' if the C++ representation still exists, it's dead if the C++
710 object is gone. You can still have references to dead objects in
711 scheme code; it's just an error to use them. This idea is stolen from
712 Emacs's handling of buffers ('buffer-live-p' and friends).
714 Add another function, foo_live_p:
719 return(foo_p(obj) && SCM_CDR(obj) != NULL);
722 In you destructor, you need to do:
726 SCM_CDR(this->obj, NULL);
729 When writing new primitives, now just check foo_live_p().
731 I hope the above helps,
737 "Even if you are on the right track, you'll get run over
738 if you just sit there."
739 --Will Rogers (1879-1935)
744 (defvar outline-font-lock-keywords
745 '(;; Highlight headings according to the level.
746 ;; must change this to allout node layout
747 ;;("^\\(\\*+\\)[ \t]*\\(.+\\)?[ \t]*$"
748 ("^\\([.]*[ ]*[*]\\)[ \t]*\\(.*\\)$"
749 (1 font-lock-string-face)
750 (2 (let ((len (- (match-end 1) (match-beginning 1))))
751 (or (cdr (assq len '((1 . font-lock-function-name-face)
752 (2 . font-lock-keyword-face)
753 (3 . font-lock-comment-face))))
754 font-lock-variable-name-face))
756 ;; Highlight citations of the form [1] and [Mar94].
757 ("\\[\\([A-Z][A-Za-z]+\\)*[0-9]+\\]" . font-lock-type-face))
758 "Additional expressions to highlight in Outline mode.")
760 (add-hook 'outline-mode-hook
762 (setq font-lock-maximum-decoration t)
763 (setq font-lock-maximum-decoration t)
764 (make-local-variable 'font-lock-defaults)
765 (setq font-lock-defaults '(outline-font-lock-keywords t))
766 (font-lock-mode global-font-lock-mode)