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.
12 . * align left edge of broken (de)cresc/slur/tie/tuplet/volta
13 . * auto-staff-switching.
14 . * warning if feta-nummer.tfm not found
16 input/star-spangled-banner.ly: hw?
18 . * spacing of accidentals
19 . * key restorations & repeats
20 . * spanners from grace to normal ctxt
22 . * Grace_slur_engraver.
23 . * paperXX.ly \quartwidth, font setting not up to date. (Should read from AFM?)
24 . * input/star-spangled-banner.ly: fold for lyrics?
25 . * Break_req handling is silly (break_forbid () + \break fucks up.)
26 . * account for accidentals in spacing.
27 . * \shape 1st dim skipped?
28 . * We need feta-din*.mf files for more sizes than 10.
29 . * fix dynamics decently, ie. use kerning & ligatures.
32 . * \$ and $ identifier syntax in examples.
33 . * Junk ghost positioning objects eg, Script leans on Staffside
37 . * Key_engraver, Local_key_item
38 . * Think of comprehensive solution for "if (grace_b == self_grace_b_)"
39 . * Y dimension units: staffspace vs. Point
42 . * Rhythmic_column and interaction stem/rhythmic_column/note_head/dots.
46 . * Lookup::text -> needs to be TeX independent.
47 . * junk Music_iterator::first_b_
51 . * [c8. c16 c16 c16] in 6/8 timesig.
54 > {\voiceone c''4. r8}
59 . *In Caro Mio Ben, bar 8, there's a syllable that starts on a note, and
60 ends on a pair of grace notes. Standard practice is to mark this with
61 a slur starting on the main note and ending on the grace note, so a
62 singer knows where to break the words.
64 In bar 27, there's a crescendo that's supposed to start at the start
65 of the grace notes and extend to the note after the grace notes.
66 . * 5. Sometimes lyrics extend past the right end of the staff. I guess that
67 this is a similar problem (if not another symptom of the same problem) as
68 one of the spacing bugs mentioned in the TODO.
69 . * 4. Lyrics and grace sections don't go too well together.
70 The words are aligned with the main note, not the start of the
71 grace note. This is usually wrong, but is sometimes right.
72 . * decimal point in \paper {}
74 . * use melismaBusy in Lyric context to typeset melismata correctly.
75 . * ly2dvi/lilypond logfile.
76 . * hang Item on Spanner
77 . * do --safe for PS output?
79 . * collision of lyrics with span_bars. See star-spangled.
80 . * Auto_beam debugging output (waarom/wanneer heb jij die weggehaald?)
81 . * It is impossible to typeset two textual scripts that are stacked
82 on top of eachother and avoids note collisions and at the same
83 time are typeset with different textStyle. I tried to move around
84 the text_engraver and other engravers between Voice and Thread
85 but the granularity is not fine enough, the scripts have to
86 share the same engraver in order to be get correct vertical
87 position but than they cannot have different style.
88 In my opinion, all scripts that share the same staff, should
89 be stacked vertically, avoiding collisions with the notes
92 . * break priority setting from SCM.
94 . * don't shorten stems/staffs closer to each other.
95 . * accidentals closer to note head
96 . * to space the staffs/staffgroups contained in the score.
99 . * tuplets that are written as "number : note", for example
100 "3 : [image of a half note here]". possible?
101 . * a note with a circle after it, meaning:
103 note + circle = note + 1/4 of its length
105 the circle is like a dot that's not filled in. for example, on
106 page three, the c-sharp on the second line should be a quarter with
107 a circle, not a quarter tied to a sixteenth. is this at all
109 . * scm-ify \property values.
110 . * make dependencies () a virtual function.
111 . * deprecate hangOnClef.
112 . * Abstraction for engravers:
113 . * make "in-between" engraver (Tie)
114 . * make wide_spanner_engraver (line_group_spanner, staff_symbol)
115 . * store req -> element, element -> element causes for warnings
116 . * compulsory hshift
117 . * My wish list for lyrics. I dream of a time when I will have enough time to
118 become familiar enough with the source code to be able to implement some of
119 these myself, but I don't know when that will be, so I thought I'd "publish"
120 my suggestions in case someone else is in a position to give them some
121 priority. Otherwise, perhaps they could go on the todo list?
123 If any of these are already implemented, please let me what the syntax is to
126 1. Stanza numbering. Numbering at the beginning of a song with the number
127 set to the left of the first note. It would also be nice (but not as
128 important) to be able to have some form of automatic numbering at the
129 beginning of each new line. This would make it easier to follow songs with a
130 large number of stanzas.
132 3. Notes centred above/below lyrics rather than left-aligned.
134 4. It would be very nice to be able to build some kind of phrasing into the
135 lyrics of hymns, etc, so that the first words of a phrase are left aligned
136 with each other, the last words are right aligned, and the words in between
139 5. In a song, with (say) four stanzas and a chorus, it would be nice to be
140 able to vertically align the chorus midway between the staves.
142 6. It would be nice to be able to put vertical brackets either side of a
143 repeated section with different words for each repeat.
145 . * Give # lines in linebreaking.
147 . * rewrite context defs using Scheme
148 . * junk TeX specifics from internal code.
149 . * \selectmusic to cut pieces from music.
150 . * formatting of input stuff.
152 . * TODO: merge atom & molecule; make tree from molecule.
153 . * Align_element::padding ?
154 . * typo checks on property names?
155 . * use streambufs and iostream
156 to provide IO handling for TeX stream, mudela stream, data-file.
157 . * seriously buffer TeX output (do profile of writing .5 mb TeX file.)
158 . * strip EXEs before installing
159 . * zip target for binary windows dist (JBR)
160 . * fix partial measures in meaningful way.
161 . * uniformise recent feta contributions.
162 . * bigger and fatter 4/4 C
163 . * relative mode for midi2ly
164 . * junking \skip req in lyrics
165 . * midi2ly empty staffs.
166 . * use Fourier transformation for rhythmic quantisation.
167 . * horizontal centering of dynamics
168 . * $DEPENDENCIES_OUTPUT support
169 . * turn slope-damping on/off
170 . * sort out directory stuff.
172 . * -I option per filetype?
174 . * fix vertical alignment and stafflines
175 . * declaring Performers
176 . * *.yo: fix pod manpage layout legacy
177 . * text-items clash with stems/beams
178 . * --include, -I option for ly2dvi (pass on to lily)
179 . * fix placement of beam-less abbrev
181 <{\voiceone cis4. cis8 cis4 | cis4 cis cis | r1 }
182 {\voicetwo cis,4 r r | r2. | r1 }> |
184 . * Musical_pitch (analogous to Duration and Rhythmic_req)
185 think about, analogous to pitch:
186 * { a4 a16 } c <-- duration of c?
187 * < a4 b8 > c <-- duration of c?
189 . * make sure all ex's have a mudela-version
190 . * do rest-collisions for Multi_measure_rests as well.
191 . * split error/warning in error/warning/non_fatal_error
192 . * add a Duration_convert member to Duration_iter to set parameters.
193 Junk global duration settings.
194 . * en-,discouraged linebreaking:
195 . * handle DISALLOW < penalty > FORCE
196 . * discourage breaking of slurs
197 . * fix variable define/lookup parser global<->paper
198 . * fix title/instrument placements; see input/test/title.ly
199 . * <\voiceone c4. \voicetwo c4>
200 . * I'd like to change the \repetitions command to Jan's suggested
201 syntax: \repeat "repeatsymbol" 2 {...}, but I'm not sure that
202 I understand the implementation of repeats well enough.
203 . * add full cello suites to web site (kom op, Maarten!)
204 . * rename 'staff_line_leading' (who is being lead where?) to
205 staff_space, interline; (or other meaningful name) and use throughout
208 [-> leading are the lead strips between the sticks (lines) of
209 typeface. ie. leading is vertical space --hwn]
210 . * add mudela-book-doc source to webstie.
211 . * Rethink Time_description
212 \cadenza , \meter, should all be \properties
213 . * fix singleStaffBracket
215 . * abbreviation-beam -> (measured/unmeasured) tremolo
216 . * partial -> anacrouse
217 . * move paper vars into engraver properties
218 . * add new glyphs to font.ly
219 . * check for groff / troff/ nroff et
220 . * more intelligent file searching
221 . * disable spaces in TeX stuff
222 . * handle ^C for tmp/file creation.
223 . * make LilyPond RPM fully relocatable
224 . * better hshift (dots, distance, head dependent)
225 . * didot / big point.
226 . * clefs (AG): The "8" should appear closer to the actual clef,
228 . * put errorlevel in Input class
229 . * junk nesting slurs
230 . * distinguish between unset and empty properties.
233 . * the bracket is ugly (wings are too parabolic, should be more circular)
234 . * versioning for Feta
235 . * rewrite dynamic signs. They're kind of spaghetti now.
236 . * The `3' in the meter key is a one or two pixels too thin (at 600dpi)
238 . * design macro for penstroke with rounded endings
239 . * timesig C: fat yet less curved. Check out relations.
240 . * design decent macro for bulbed endings
241 . * printer dependencies.
244 . * work out sizes of character fonts.
246 . * piano pedals: Ped/*
248 . * coda signs: Segno, O+
249 . * glissando, arpeggio
251 . * include important spacing dims in fetalog
252 . * scalability: use blot_diameter everywhere, make font chubbier for
256 . * UMR: Uninitialized memory read
257 This is occurring while in:
260 Keyword_table::Keyword_table(Keyword_ent*) [keyword.cc:28]
261 My_lily_lexer::My_lily_lexer() [my-lily-lexer.cc:78]
262 My_lily_parser::parse_file(String,String) [my-lily-parser.cc:54]
263 do_one_file(String,String) [scores.cc:124]
264 Reading 4 bytes from 0xefffeca8 on the stack.
265 Address 0xefffeca8 is 728 bytes below frame pointer in function
266 . * GNU diff 2.7: diff -rN does not see a new directory with empty file
267 . * patch: don't touch timestamp if all patches fail.
268 . * MetaPost: should not generate setgray for unfill
269 . * mfplain.ini not in tetex 0.9
270 . * mf-to-table -> add space 'before ; in AFM output. (-> check AFM
271 spec. Is this a bug in afm2tfm?)
272 . * check out GCC signatures?
274 f = fopen ("/dev/null", "r")
276 . * tetex: mfplain.mem
277 . * timesig: sometimes bottom digit too high: Xdvi doesn't handle
278 newly created fonts correctly.
282 . * stack scripts in chords:
283 % fingering: footing:
284 < a-4 c-2 g-1 > < c-\ltoe e-\lheel >
286 . * slur parts as a script
287 . * stack parameterised scripts for fingering and footing:
290 . * automatically add a \version if not present.
293 . * convert-mudela -e empty.ly
295 . * emacs mudela-mode
296 . * should handle block comments too.
297 . * handle lexer modes (\header, \melodic, \lyric) etc.
300 . * fontlock: \melodic \melodic
302 . * use properties for:
308 . * optimal pagebreaking.
310 . * internationalisation for input.
311 . * Unicode support? -> man 7 unicode
312 . * (The explanation below is mostly intended for Han-Wen and Jan)
313 > Before, the font was changed with macros declared separately for
314 > pure TeX and LaTeX, but now all the fonts are declared directly in
315 > the generated code using the low-level TeX commands. This circumvents
316 > the fontencoding mechanism of LaTeX and is a potential source of
317 > problems also for us users of the Latin-1 character set.
318 > I think it still works since the inputencoding latin1 is
319 > declared by ly2dvi, but it still means that e.g. an o with
320 > umlaut is typeset as a combination of the two symbols 'o' and
321 > 'umlaut' instead of as a single character, as would be the case
322 > if fontencoding OT1 had been used. This shouldn't give any
323 > difference in layout, though. One of the main argument for using
324 > fontencoding OT1 is for the hyphenation mechanism to work, an
325 > argument that's clearly irrelevant in our application. Yet we
326 > see the problem for August.
329 . * output header info to MIDI too.
331 . * a musical dictionary. See Documentation/vocabulary-*, other
341 . * guitar chords (fret diagrams)
342 . * other chord name styles (american(?) style)
347 . * derive lily_stream, Dstream, texstream from ostream?
348 . * indentable stream as baseclass for TeX stream, lily stream, Dstream.
349 . * use dstream feature in midi2ly
350 . * integrate IO checking into stream class
357 . * add to MIDI output:
358 . * sharp / flat on trills (in MIDI ??)
359 . * ornaments (and trills?)
363 > Would it be hard to add support for proper dynamics in MIDI output? I
364 > would really like to have this feature...
366 Concretely spoken, for dynamics you have to write a performer
367 (Dynamics_performer), that will take the input requests. If I
368 understand correctly, every MIDI note played must have its dynamic
369 strength set separately. That means the the Dynamics_performer must
370 set the strength of every Audio_note it finds. This means that one
371 has to modify existing Audio items. The best way of doing this is
372 with a broadcast/acknowledge process.
374 So the best way of handling this, is
376 1 supporting dynamic settings in Audio_note
378 2 Write a Dynamics_performer that will modify
379 any notes it finds to set appropriate strengths.
381 I'd say that the work involved is not hard, but you have to be fluent
382 with C++ and need some insight into the working of Notation Contexts
383 and friends. I guess I could do it in a day or so, but if you are not
384 so fluent with the inner workings of LilyPond, it could take you some
385 more time (A few more days?).
387 Please note, that I am *not* going to code this myself: my days are
388 valuable, and I think I have more interesting things to do than fixing
389 the MIDI output (I don't even have a soundcard). But I *do* want to help
390 you or other people with implementing this, so if you need help, don't
392 . * account for rhythmic position in measure
396 . * Output class, handles : (smallish)
397 . * help text /(c) notice?
399 . * warning /errors/progress
400 . * abort on error/warning; exit status
401 . * quiet/ignore-version options
405 . * speed up PS code.
406 . * PS lines to .eps files
407 . * write custom prolog
412 . * remove links to non-free SW.
413 . * internal documentation
416 . * left/rightbeamcount
417 . * various other new properties.
422 . * Doc (C) stuff of sheet music
423 . * a better format? SGML? TeX? Info?
424 . * a better tutorial
426 . * more spanners (smallish)
430 . * Rewrite Stem, Beam (hairy)
431 . * general shaving on Beam and Stem
432 . * use plet grouping
436 . * Ledger lines, should be separate item: Ledger_lines
437 . * set different line sizes / thicknesses
438 . * beam stem showthrough, inter beam sizes (french vs german style)
441 . * left/right note balls should be handled by Collision:
442 < \multi 2; { \stem 1; <b c> } { <f as b> } >
445 . * merge key{item} & localkey{item}?
446 . * spacing, national styles?
449 . * redo Notehead to allow digits as heads
450 . * add a \tablature {} lexer mode for easy entering
452 . * should adjust stemlength for flag number.
455 . * caching breakpoints
457 . * specify number of lines
460 . * convention for slurs vs. phrasing marks.
464 . * \bla {} vs \bla ;
465 . * mix engraver hacking with music ?
466 . * \once\property KEY = VAL
468 . * abstract grammar.
469 . * Figure out semicolons.
480 . * configure pitch_byte
481 . * rest name configurable
486 . * fix confusing naming in Engraver vs Engraver_group_engraver (context)
488 . * A range for context errors (eg. mark both { and }. )
490 . * lyric in staff (sharpsharp in staff, text below)
492 . * write Dynamic_line (to group dynamics horizontally)
494 . * use Real for all y positions.
496 . * half-sharps, half-flats
498 . * adaptive accidental spacing.
500 . * handle EOF graciously in error messages.
502 . * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
506 . * % toe to bheel four to five
512 (where "to" is a tiny bow)
514 . * auxilliary file for caching info.
518 . * Output data structures of Mudela in XML/SGML.
519 . * create libmudela, or liblily_frontend
520 . * move MIDI stuff (including Quantization) to a ANSI C libmidi library.
521 . * Spacing_request for manually adjusting spacing
522 . * caching breakpoints
523 . * used fixedpoint arithmetic for min. energy.
528 (defvar outline-font-lock-keywords
529 '(;; Highlight headings according to the level.
530 ;; must change this to allout node layout
531 ;;("^\\(\\*+\\)[ \t]*\\(.+\\)?[ \t]*$"
532 ("^\\([.]*[ ]*[*]\\)[ \t]*\\(.*\\)$"
533 (1 font-lock-string-face)
534 (2 (let ((len (- (match-end 1) (match-beginning 1))))
535 (or (cdr (assq len '((1 . font-lock-function-name-face)
536 (2 . font-lock-keyword-face)
537 (3 . font-lock-comment-face))))
538 font-lock-variable-name-face))
540 ;; Highlight citations of the form [1] and [Mar94].
541 ("\\[\\([A-Z][A-Za-z]+\\)*[0-9]+\\]" . font-lock-type-face))
542 "Additional expressions to highlight in Outline mode.")
544 (add-hook 'outline-mode-hook
546 (setq font-lock-maximum-decoration t)
547 (setq font-lock-maximum-decoration t)
548 (make-local-variable 'font-lock-defaults)
549 (setq font-lock-defaults '(outline-font-lock-keywords t))
550 (font-lock-mode global-font-lock-mode)