-Features you cannot find in the doco as working, should be mentioned here.
-
-This is an assorted collection of stuff that will be done, might be
-done, or is an idea that I want to think about
-
-Most of the items are marked in the code as well, with full explanation.
-grep for TODO and ugh/ugr
-
-0.2:
- * abbrevs
-
- * use kpsepath to find all TeX dirs
- - configure.in
- - clean-fonts.sh
-
- * forced breakpoints
-
- * --metafont
-
- * disable spaces in TeX stuff
-
- * height of dyns.
-
- * handle ^C for tmp/file creation.
-
- * WWW mirror/archive for the mailing lists.
-
- * dots & rest collisions.
-
- * add a screenshot to the website. :)
-
- * fix stdin input
-
- * documentation
- - info?
- - LaTeX?
- - more manpages?
-
- * naming Mozarella, Madeira, Muella?
-
- * versioning for Feta
-
- * bf: abbrevs over whole note
-
-STUFF
-
-
- * give Items/Spanners access to unbroken originals
-
- * scoping for properties
-
- { c4
- \multi 2 < { \stemup .. } { \stemdown .. } >
- c2
+-*-outline-layout:(2 (-1 -1 0 :) 0);outline-stylish-prefixes:nil -*-
+
+* GNU LilyPond TODO
+Features you cannot find in the doco as working, should be
+mentioned here. This is an assorted collection of stuff that will be
+done, might be done, or is an idea that I want to think about
+
+Most of the items are marked in the code as well
+Grep for TODO and ugh/ugr/urg.
+
+.* BUGS
+. * header for PS enteredby = "bla <bla@bar.com>"
+. * ps/lily.ps
+. * AFM for BlueSky AFM files.
+. * staff size for post/prebreaks
+. * .ly files
+. * input/star-spangled-banner
+. * mutopia/J.S.Bach/wtk1-fugue2.ly
+. * input/test/grace
+. * fix: text on rests: ridiculous dims
+. * \score { \notes { c8 c8 c8 c c c }
+\paper { \translator { \VoiceContext \remove "Auto_beam_engraver";}}
+}
+. * m=\notes\relative c'''{
+ \time 2/4;
+
+ R2*4 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | \break
+ <{R2*10}{s2 \mark "A"; }> | % Too narrow space for the first rest in
+1.1.29
+ r4 r8 [g16 \p ( a ] |
+[ ) g8-. fis16 ( g ][ ) fis8-. f16 ( g ] |
+[ ) f8-. e16 ( f ][ ) e8-. es16 ( f ] |
+[ ) es8 \f c16 ( d][es8 d16 c ] |
+) d4 r8 [g16 \p ( a ] |
+[ ) g8-. fis16 ( g ][ ) fis8-. f16 ( g ] | \break
+) c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 | c2 |
+}
+
+\score{
+ \m
+ \paper{
+ \translator{
+ \ScoreContext
+ SkipBars = 1;
+ }
+ \translator {
+ \OrchestralPartStaffContext
+ }
+ }
+}
+. * midi key.
+. *P.P.S. It can be cool in mudela-book to distinguish in pre,postMudelaExample,
+whether MudelaExample is epsed or not: ( if this fragment is floating eps, than 1,
+otherwise 2). say preMudelaExample[eps]{}, and change it in document body sometimes.
+. * fix singleStaffBracket
+. * declare performers in \midi
+. * fix MIDI
+. * \shape 1st dim skipped?
+. * turn slope-damping on/off
+. * tremolo stuff
+. * fix height of / collisions with lyrics (chords),
+ see input/test/vertical-text.ly; input/test/repeat.ly
+. * We need feta-din*.mf files for more sizes than 10.
+. * latex bla.tex broken (titles / \lilyfooter stuff?)
+. * fix dynamics decently, ie. use kerning & ligatures.
+. * support_l_arr_ empty in staff-margin's G_staff_side_item
+. * minVerticalAlign for StaffGroups.
+. * fix OrchestralScore and Hara-kiri (i.e., fix Coriolan)
+. * Phrasing: Indicating the textual underlay of a piece, or
+otherwise dividing a piece into phrases.
+
+There are distinct ways of specifying the first two (although at
+present, they're not properly distinguished) but no distinct way to
+specify the third. Should there be?
+
+.* TODO before 1.2
+. * \selectmusic to cut pieces from music.
+. * break priority setting from SCM.
+. * Gade score
+. * remove [] in favour of auto-beamer
+. * The minimum distance between different staffs works only within
+ StaffGroups, not between StaffGroups. The Gade Score looks quite
+ strange on the pages where the Timpani and/or Brass sections don't
+ play. I've set the minimum distance with:
+ \translator {
+ \OrchestralScoreContext
+ minVerticalAlign = 2.5*\staffheight;
+ }
+. * hangOnClef with non-breakable clefs.
+. * Aha, the problem is the new TeX code generation for changing fonts.
+> (The explanation below is mostly intended for Han-Wen and Jan)
+> Before, the font was changed with macros declared separately for
+> pure TeX and LaTeX, but now all the fonts are declared directly in
+> the generated code using the low-level TeX commands. This circumvents
+> the fontencoding mechanism of LaTeX and is a potential source of
+> problems also for us users of the Latin-1 character set.
+> I think it still works since the inputencoding latin1 is
+> declared by ly2dvi, but it still means that e.g. an o with
+> umlaut is typeset as a combination of the two symbols 'o' and
+> 'umlaut' instead of as a single character, as would be the case
+> if fontencoding OT1 had been used. This shouldn't give any
+> difference in layout, though. One of the main argument for using
+> fontencoding OT1 is for the hyphenation mechanism to work, an
+> argument that's clearly irrelevant in our application. Yet we
+> see the problem for August.
+. * Check gcc 2.8.1 compatibility
+. * Abstraction for engravers:
+. * make "in-between" engraver (Tie, Extender)
+. * make wide_spanner_engraver (line_group_spanne,r staff_symbol)
+. * remove Interval dim_ from Dimension_cache and rename the struct.
+. * merge align_element and axis_element_group.
+. * do scaled fonts generally
+. * The Lilypond accidental symbols are available through the TeX macros,
+\textflat, \textsharp and \textnatural defined in the init file
+lilyponddefs.tex. All the symbols are defined in the files fetaXX.tex
+where XX corresponds to the size. I don't know where (or even if) they
+are installed but they are generated in the mf/out/ directory during the
+compilation.
+. * make dependencies () a virtual function.
+. * fix Repeated_music design
+. * one big ly2dvi input that includes *all* tests.
+. * store req -> element, element -> element causes for warnings
+. * junk Text_def, use G_text_item in stead.
+. * junk Script_def
+. * include examples in RPM.
+. * fix partial measures in meaningful way.
+. * working notehead style.
+. * add scripts to bars eg. |^"bla"
+. * relative mode for mi2mu
+. * uniformise recent feta contributions.
+. * use SCM and Molecules for {accordeon stuff, }
+. * bigger and fatter 4/4 C
+. * sort out directory stuff.
+. * --prefix option?
+. * -I option per filetype?
+. * kpathsea?
+
+. * ly2dvi/lilypond logfile.
+. * How can I specify a chord whose duration is longer than a whole note?
+ \type ChordNames { \chord{ A1*2-min } }
+
+gives me a parse error. And \times doesn't work either. I can't use
+a spacer note. So it seems to be impossible to have long chords of
+general length. Of course, in the example above I can use \breve.
+But what if I want a chord that lasts for 3 whole notes? Or what
+about 2.5 whole notes? Is there a mechanism for getting this kind of
+length?
+
+
+
+. * fractional chord durs.
+. * hang Item on Spanner
+. * do --safe for PS output?
+. * convert-mudela --output
+. * Staff_margin (with a partial measure.)
+. * fix pletvisibility properties:
+. * bracket on/off/no-bracket-when-beam
+. * num on/off/no-num-when-beam
+. * fix: standchen.
+. * junk text{sharp,flat,etc}
+. * fix convert-mudela manpage
+. * decimal point in \paper {}
+. * { \voiceone <a'4.*2/3 d''4.*2/3 fis''4.*2/3> [g''8 fis'' e''] d''4 |}
+ and=20
+ { \voicetwo d'4 d'2.*2/3 } spacing
+. * tied notes for MIDI
+. * sharp /flat on trills (in MIDI ??)
+. * scm-ify \property values.
+. * move class Lookup {} into scm
+. * msgfmt -o check?
+. * \breathmark TeX macro
+. * add new glyphs to font.ly
+. * formatting of input stuff.
+. * \notes{ a \< b \cr } vs \notes{ a \< b \! }
+. * space after bars?
+. * 'hinterfleisch' before bar (e.g. wtk1-fugue2)?
+. * Summary of minor spelling irregularities:
+. * capitalization/use of underscores in property names
+. * fix SkipBars -> skipBars
+. * broken scripts:
+ lbheel = \script { "bheel" 0 0 -1 0 0 }
+ rbheel = \script { "bheel" 0 0 1 0 0 }
+ lbtoe = \script { "btoe" 0 0 -1 0 0 }
+ rbtoe = \script { "btoe" 0 0 1 0 0 }
+ lfheel = \script { "fheel" 0 0 -1 0 0 }
+ rfheel = \script { "fheel" 0 0 1 0 0 }
+ lftoe = \script { "ftoe" 0 0 -1 0 0 }
+ rftoe = \script { "ftoe" 0 0 1 0 0 }
+ and also
+ portato= \script { "portato" 0 -1 0 1 0 }
+. * ly2dvi
+. * bottomnote for ly2dvi
+. * deps for ly2dvi
+.* STUFF
+. * compulsory hshift
+. * arrows on slurs.
+. * Align_element::padding ?
+. * uniformise property names...
+. * ydirection <-> yDirection
+. * rather allow '_' in identifiers first (i.e. junk ^ and _),
+ and do y_direction?
+. * typo checks on property names?
+. * use streambufs and iostream
+ to provide IO handling for TeX stream, mudela stream, data-file.
+. * seriously buffer TeX output (do profile of writing .5 mb TeX file.)
+. * strip EXEs before installing
+. * zip target for binary windows dist (JBR)
+. * junking \skip req in lyrics
+. * percussion note heads
+. * mi2mu empty staffs.
+. * horizontal centering of dynamics
+. * $DEPENDENCIES_OUTPUT support
+. * Xdvi zooming ?! Try to understand GS garbage collection.
+gs: Error: /undefined in draw_beam
+gs: Operand stack:
+. * fix vertical alignment and stafflines
+. * declaring Performers
+. * GrandStaff needs more work -- I want a single word
+ `harpsichord' to the left of the grandstaff, not one on each
+ stave. (Organ staff -- with separate pedal -- but common
+ properties may be something to think about. Of course for
+ organ you want to be able to give stop indications on the way
+ through, so the \property Voice.Instrument would be a stop,
+ and \property GrandStaff.instrument would be PipeOrgan...)
+. * revise the Score_priority_align_engraver concept. It sucks.
+. * *.yo: fix pod manpage layout legacy
+. * text-items clash with stems/beams
+. * --include, -I option for ly2dvi (pass on to lily)
+. * fix placement of beam-less abbrev
+. * \meter 3/4;
+ <{\voiceone cis4. cis8 cis4 | cis4 cis cis | r1 }
+ {\voicetwo cis,4 r r | r2. | r1 }> |
}
-
- this modifies \stem for the c2
-
- * use properties for:
- - Text_style
- - default_octave
- - plet?
- - default_duration?
- - default abbreviation
- - Staff_sym size
- - default tempo.
- - font size
- - bartypes (get rid of derived Span_bar_engravers)
- - cadenza mode?
- - MIDI instrument
- - staff title
-
- * page handling:
- - papersizes
- - PS output
- - optimal pagebreaking.
-
- * put errorlevel in Input class
-
- * AFM for font input?
-
-3RD PARTY BUGS:
-
- * xdvi: PS magnifying glass.
-
- * Rational infty(HUGE_VAL) on glibc / w32
-
- * Fix profiling. gprof bugreport?
-
- * GS: /undefined in draw_beam after XDVI magnification.
-
- * Rational global static var.
-
-PROJECTS
-
- * Unicode support?
- - 16 bit Strings
- - -u switch
- - detect of 16/8 bit files
- - examples to go with it.
-
- * Spring_spacer:
- - write a faster Spring_spacer (without matrices if possible)
- - use straight LP to find minimal "fitting force"
- - relate energybound to linelen unitspace fontsize etc.
- - used fixed point fp
-
- * \header
- - output header info to MIDI too.
-
-
- * Makefile stuff:
- - Use Automake
- - shared lib on Solaris too.
- - check libtool
- - generate stuff in out/default, out/sun5-irix etc iso out/
- and out-sun5/
-
- * Add mudela-output to Rosegarden.
-
- * a musical dictionary. See Documentation/vocabulary-*, other
-languages:
- - italian
- - german
- - dutch
- - swedish
+. * Musical_pitch (analogous to Duration and Rhythmic_req)
+ think about, analogous to pitch:
+ * { a4 a16 } c <-- duration of c?
+ * < a4 b8 > c <-- duration of c?
+. * \tempo 4. = 90;
+. * fix audio-items (don't use (input) requests, but copy data)
+. * make sure all ex's have a mudela-version
+. * do rest-collisions for Multi_measure_rests as well.
+. * split error/warning in error/warning/non_fatal_error
+. * add a Duration_convert member to Duration_iter to set parameters.
+ Junk global duration settings.
+. * en-,discouraged linebreaking:
+. * handle DISALLOW < penalty > FORCE
+. * discourage breaking of slurs
+. * fix variable define/lookup parser global<->paper
+. * fix title/instrument placements; see input/test/title.ly
+. * <\voiceone c4. \voicetwo c4>
+. * add full cello suites to web site (kom op, Maarten!)
+. * Rethink Time_description
+\cadenza , \meter, \grouping should all be \properties
+. * rename
+. * measure -> bar
+. * abbrev -> tremolo
+. * abbreviation-beam -> (measured/unmeasured) tremolo
+. * partial -> anacrouse
+. * shared lib
+. * robustify Beam (in case of no stems, 32nd notes)
+. * decentralised spring factory
+. * move paper vars into engraver properties
+. * check for groff / troff/ nroff et
+. * more intelligent file searching
+. * disable spaces in TeX stuff
+. * handle ^C for tmp/file creation.
+. * make LilyPond RPM fully relocatable
+. * dots & rest collisions.
+. * documentation
+. * remove links to non-free SW.
+. * internal documentation
+. * a general paper.
+. * \properties
+. * left/rightbeamcount
+. * various other new properties.
+. * introduction?
+. * info?
+. * LaTeX?
+. * more manpages?
+. * the warning about the negative slur/tie length appears twice
+which is irritating.
+. * better hshift (dots, distance, head dependent)
+. * clefs (AG): The "8" should appear closer to the actual clef,
+touching it.
+. * put errorlevel in Input class
+. * junk nesting slurs
+. * integrate midi-elts from mi2mu and lily?
+
+.* FONT
+. * the bracket is ugly (wings are too parabolic, should be more circular)
+. * versioning for Feta
+. * The `3' in the meter key is a one or two pixels too thin (at 600dpi)
+ in the middle:
+. * design macro for penstroke with rounded endings
+. * timesig C: fat yet less curved. Check out relations.
+. * design decent macro for bulbed endings
+. * printer dependencies.
+. * y-refpoint for rests should be the 4th staffline (gclef: b')
+. * clean-up eight+ rests
+. * versioning
+. * lo-res fixes.
+. * work out sizes of character fonts.
+. * more symbols
+. * piano pedals: Ped/*
+. * maxima notehead
+. * coda signs: Segno, O+
+. * glissando, arpeggio
+. * lengthened trill
+. * 128th flags
+. * include important spacing dims in fetalog
+.* 3RD PARTY BUGS
+. * GNU diff 2.7: diff -rN does not see a new directory with empty file
+. * check out GCC signatures?
+. * glibc 2.0:
+ f = fopen ("/dev/null", "r")
+ assert (feof (f))
+
+. * tetex: mfplain.mem
+.* 3RD PARTY PROJECTS:
+. * make GCC warn about ctor that leaves member vars uninitialised.
+. * GNU patch
+. * 'double-fix' mode: ignore identical fix, rather than suggest
+ to revert patch direction when (more or less? exactly) the same
+ thing is fixed
+.* PROJECTS
+. * Scripts:
+. * fix position of bar number
+. * stack scripts in chords:
+ % fingering: footing:
+ < a-4 c-2 g-1 > < c-\ltoe e-\lheel >
+. * script-spacing
+. * slur parts as a script
+. * stack parameterised scripts for fingering and footing:
+
+. * convert-mudela:
+. * automatically add a \version if not present.
+. * better parsing
+. * make smarter
+. * convert-mudela -e empty.ly
+
+. * emacs mudela-mode
+. * should handle block comments too.
+. * handle lexer modes (\header, \melodic, \lyric) etc.
+. * indentation
+. * notenames?
+. * fontlock: \melodic \melodic
+
+. * use properties for:
+. * default tempo.
+. * cadenza mode?
+
+. * page handling:
+. * PS output
+. * optimal pagebreaking.
+
+. * Unicode support? -> man 7 unicode
+. * 16 bit Strings
+. * -u switch
+. * detect of 16/8 bit files
+. * examples to go with it.
+
+. * Spring_spacer:
+. * write a faster Spring_spacer (without matrices if possible)
+. * relate energybound to linelen unitspace fontsize etc.
+. * used fixed point fp?
+
+. * \header
+. * output header info to MIDI too.
+
+. * a musical dictionary. See Documentation/vocabulary-*, other
+ languages:
+. * explanations
+. * italian
+. * german
+. * dutch
+. * swedish
.. ?
- * chords
- - guitar chords
- - chord names
- - basso continuo
- - Syntax/parser
- - MIDI output?
- - typesetting
-
- * integrate midi-elts from mi2mu and lily?
-
- * Debug logs:
- - derive lily_stream, Dstream, texstream from ostream?
- - indentable stream as baseclass for TeX stream, lily stream, Dstream.
- - use dstream feature in mi2mu
- - integrate IO checking into stream class
-
- * input converters
- - NIFF?
- - ABC?
- - SMDL?
-
- * add to MIDI output:
- - tempo change
- - repeat
- - slurs
- - dynamics etc.
-
- * grace notes
- - make separate class for Grace_*_engravers
+. * chords
+. * guitar chords (fret diagrams)
+. * other chord name styles (american(?) style)
+. * basso continuo
+. * MIDI output?
+
+. * Debug logs:
+. * derive lily_stream, Dstream, texstream from ostream?
+. * indentable stream as baseclass for TeX stream, lily stream, Dstream.
+. * use dstream feature in mi2mu
+. * integrate IO checking into stream class
+
+. * input converters
+. * NIFF?
+. * ABC?
+. * SMDL?
+
+. * add to MIDI output:
+. * tempo change
+. * ornaments (and trills?)
+. * repeat/volta
+. * slurs
+. * accents
+. * dynamics
+
+> Would it be hard to add support for proper dynamics in MIDI output? I
+> would really like to have this feature...
+
+To answer this, I have to give a little background. Please say so if
+I am being obtuse.
+
+Both audio and notation elements are created decentrally, when
+LilyPond says "Interpreting music ... [8][16] etc." After all
+elements are created, they are processed again to calculate all
+parameters. After that is done, they are dumped onto the output (the
+MIDI stream or the TeX file).
+
+The audio and notation elements are created by objects called
+performer and engraver respectively. They work by taking a chunk of
+input (a so-called request), and using the request to create an audio
+or notation element.
+
+After some processing, the engraver sends the created elements to
+its enclosing notation/performance context.
+
+In the case of notation, engravers can also modify existing elements
+created by sibling engravers. Eg. the beam-engraver will modify stems
+when it creates a beam over a couple of stems. This is done in
+Engraver::do_acknowledge_element () and
+Engraver::do_process_acknowledged ().
+
+In the case of audio, there are no mechanisms to modify existing audio
+elements. After the audio elements are created, they are sent directly
+to the enclosing context (an instance of Performer_group_performer),
+through the method Performer::play ()
+
+Concretely spoken, for dynamics you have to write a performer
+(Dynamics_performer), that will take the input requests. If I
+understand correctly, every MIDI note played must have its dynamic
+strength set separately. That means the the Dynamics_performer must
+set the strength of every Audio_note it finds. This means that one
+has to modify existing Audio items. The best way of doing this is
+with a broadcast/acknowledge process.
+
+So the best way of handling this, is
+
+ 1 supporting dynamic settings in Audio_note
+
+ 2 mimicking the broadcast/acknowledge mechanism of the Engravers in
+ the Performers
+
+ 3 using that mechanism to write a Dynamics_performer that will modify
+ any notes it finds to set appropriate strengths.
+
+You could also kludge this by deriving from Performer_group_performer
+a performer that also sets dynamics within notes, but that is not the
+elegant way to do it.
+
+I'd say that the work involved is not hard, but you have to be fluent
+with C++ and need some insight into the working of Notation Contexts
+and friends. I guess I could do it in a day or so, but if you are not
+so fluent with the inner workings of LilyPond, it could take you some
+more time (A few more days?).
+
+Please note, that I am *not* going to code this myself: my days are
+valuable, and I think I have more interesting things to do than fixing
+the MIDI output (I don't even have a soundcard). But I *do* want to help
+you or other people with implementing this, so if you need help, don't
+hesitate to ask.
+
+. * account for rhythmic position in measure
+. * etc.
+
+. * grace notes
+. * make separate class for Grace_*_engravers
(which is at Voice_gravs level)
- - make encapsulated spacing problems.
-
- * On-demand loading of simple-engravers?
-
- * accidentals per Voice_group
-
- * Convert all ref/bib stuff into BibTeX.
-
- * Output class, handles : (smallish)
- - help text /(c) notice?
- - version line
- - warning /errors/progress
- - abort on error/warning; exit status
- - quiet/ignore-version options
- - logfile output
-
- * piano staff
-
- * elaborate Staff_side baseclass:
- - scripts
- - text
- - slur start/end
-
- * cautionary accidental
-
- * Output an output format independent (ofi) typeset file; and
- make ofi2 TeX, MusiXTex, Display PostScript, PostScript,
- Ascii... interpreters. (difficult)
-
- - poor man's ascii output possible?
- - MusiXTeX output possible? (would have to be done before break calc.)
- - NIFF ?
- - Common Music Notation
- - PostScript output (esp. Beams, Slurs, etc)
- - Move all Score_elems, into libmutype.a
-
- * Documentation
- - Doc Mutopia (Music To The People)
- - Doc (C) stuff of sheet music
- - a better format? SGML? TeX? Info?
- - a tutorial
-
- * TeX spanners , use texbeam.cc as an example (smallish)
- - Glissando
- - trill
- - bracket
-
- * Rewrite Stem, Beam and Rhythmic_grouping (hairy)
- - [c8. c32 c32]
- - doc on Rhythmic_grouping
- - general shaving on Beam and Stem
- - use plet grouping
- - separate visual from rhythmic info even more
- - beams over bars
-
- * Redo fonts
- - adapt for multiple font sizes.
-
- * lines:
- - Ledger lines, should be separate item: Ledger_lines, Ledger_lines
- - set different line sizes / thicknesses
- - beam stem showthrough, inter beam sizes (french vs german style)
-
- * Collisions
- - left/right note balls should be handled by Collision:
+. * make encapsulated spacing problems.
+
+. * accidentals per Voice_group
+
+. * Output class, handles : (smallish)
+. * help text /(c) notice?
+. * version line
+. * warning /errors/progress
+. * abort on error/warning; exit status
+. * quiet/ignore-version options
+. * logfile output
+
+. * PS
+. * speed up PS code.
+. * PS lines to .eps files
+. * write custom prolog
+
+. * NIFF ?
+. * Common Music Notation
+. * PostScript output (esp. Beams, Slurs, etc)
+. * Move all Score_elems, into libmutype.a
+. * SGML
+
+. * Documentation
+. * Doc (C) stuff of sheet music
+. * a better format? SGML? TeX? Info?
+. * a better tutorial
+
+. * more spanners (smallish)
+. * Glissando
+. * trill
+
+. * Rewrite Stem, Beam and Rhythmic_grouping (hairy)
+. * [c8. c32 c32]
+. * doc on Rhythmic_grouping
+. * general shaving on Beam and Stem
+. * use plet grouping
+. * separate visual from rhythmic info even more
+. * beams over bars
+
+. * lines:
+. * Ledger lines, should be separate item: Ledger_lines
+. * set different line sizes / thicknesses
+. * beam stem showthrough, inter beam sizes (french vs german style)
+
+. * Collisions
+. * left/right note balls should be handled by Collision:
< \multi 2; { \stem 1; <b c> } { <f as b> } >
- * Keys:
- - merge key{item} & localkey{item}?
- - do conventional keys (C G A, F B E, a e fis, d as des, etc ),
- besides lists of flats/sharps, possibly via declaration
- - key transposition.
- - key undo: \key bes; .. . \key; should print natural
- - special key: \key bes 'b bis';
- - spacing, national styles?
-
- * Support for TAB
- - redo Notehead to allow digits as heads
- - add a \tablature {} lexer mode for easy entering
-
- * should adjust stemlength for flag number.
-
- * breaking:
- - caching breakpoints
- - saving them
- - allowing users to set them.
- - penalties
- - specify number of lines
- - set linelength per line
-
- * Rhythmic staff.
-
- * Baroque superstaff
-
-SEVERELY LACKING:
-
- * SPEED!
-
- * multibar rests
-
- * markers
-
-
-INPUTLANGUAGE
-
- * c4 4 4 4 for c4 c4 c4 c4?
-
- * neatly (and readably) expressing concurrent
- voices
-
- * <c f a>4 ?
-
- * Viola mode?
+. * Keys:
+. * merge key{item} & localkey{item}?
+. * spacing, national styles?
+
+. * Support for TAB
+. * redo Notehead to allow digits as heads
+. * add a \tablature {} lexer mode for easy entering
+
+. * should adjust stemlength for flag number.
+
+. * breaking:
+. * caching breakpoints
+. * saving them
+. * specify number of lines
+
+.* INPUTLANGUAGE
+. * Language:
+. * \type -> \context ?
+. * \translator -> ?
+. * fix \partial
+. * \bla {} vs \bla ;
+. * mix engraver hacking with music ?
+. * \once\property KEY = VAL
+. * \addtranslator, \removetranslator
+. * junk ^ and _ for scripts
+. * junk _ for lyrics.
+. * abstract grammar.
+. * Figure out semicolons.
+. * c4 4 4 4 for c4 c4 c4 c4?
+. * <c f a>4 ?
+. * Viola mode?
@c c g e g
for
@A c g e g
for
cis gis e gis
+. * configure pitch_byte
+. * rest name configurable
- * relative mode for pitch entering
-
- * bracket (bracketplets)
-
- * configure pitch_byte
-
- * rest name configurable
-
- * Raw request syntax
-
-SMALLISH PROJECTS
- * progress when creating MIDI elts.
+.* SMALLISH PROJECTS
- * A range for context errors (eg. mark both { and }. )
+. * fix confusing naming in Engraver vs Engraver_group_engraver (context)
- * lyric in staff (sharpsharp in staff, text below)
+. * progress when creating MIDI elts.
- * write Dynamic_line (to group dynamics horizontally)
+. * A range for context errors (eg. mark both { and }. )
- * use Real for all y positions.
- - use translate_axis( .. ,Y_AXIS)
+. * lyric in staff (sharpsharp in staff, text below)
- * half-sharps, half-flats
+. * half sharps/flats
- * adaptive accidental spacing.
+. * write Dynamic_line (to group dynamics horizontally)
- * handle EOF graciously in error messages.
+. * use Real for all y positions.
- * caching Item/spanner dimensions.
+. * half-sharps, half-flats
- * centered whole rest
+. * adaptive accidental spacing.
- * qtor, btor, mtor-> tor( QUIET_ver ), tor( DEBUG_ver ), etc.
- - use tors feature in lily (?)
+. * handle EOF graciously in error messages.
- * declare notenametab?
+. * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
- * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
+. * stafftypes: voice names/ instrument names.
- * Flower types:
- - A decent scalar type
- - String hash
- - Pointer hash
+. * lily \tempo
- * binsearch/hash for identifiers
-
- * stafftypes: voice names/ instrument names.
-
- * TeX stuff:
- - Decent TeX titledefs (\tempo, \metron, etc. )
- - decent TeX page layout
-
- * lily \tempo
-
- * C meter iso 4/4, idem for alla breve, etc.
-
- * textspanner: center position
-
- * Brackets
-
- * Scripts:
- - stack scripts in chords:
- % fingering: footing:
- < a-4 c-2 g-1 > < c-\ltoe e-\lheel >
- - script-spacing
- - slur parts as a script
- - stack parameterised scripts for fingering and footing:
-
- % toe to bheel four to five
+. * % toe to bheel four to five
% ^_u 4_5
% -
% --|x-- --|x--
% --|--- --|---
(where "to" is a tiny bow)
- * auxilliary file for caching info.
-
- * Text_crescendo
-
- * clean solution for staffsize in items.
-
- * revise calcideal
-
- * volta
-
-IDEAS
-
- * Output abstract data structures associated with
-Mudela.
-
- * create libmudela, or liblily_frontend
-
- * move MIDI stuff (including Quantization) to a ANSI C libmidi library.
-
- * use an embedded language: Python, Scheme
- for:
- - Score_elems
- - Engraver
- - Translators
- - Complex mudela?
-
- * y -dims in internote? Staff-space? X-dimensions?
-
- * Spacing_request for manually adjusting spacing
-
- * caching breakpoints
-
- * #c <-> cis
-
- * breath marks
-
- * used fixedpoint arithmetic for min. energy.
-
- * move towards incremental algorithms.
-
- * far fetched language ideas
- - design meta-language like TeX and Metafont
- - programming/macros input
-
- * Global type registration.
-
- My_class * p = create_object( My_class )
- Type t = get_type ( *p );
- if ( t <= get_type( q ))
- ..
-
- * naming of Voice_group/Voice
-
- * benchmark band_matrices.
-
- * versioning stuff (cvt mudela, mudela, etc.)
-
- * a real convert-mudela
-
- * dots into separate item.
-
- * use String iso Text_def for lyrics.
-
- * use position 0 for center of staff iso bottom.
-
- * Klavarskribo?
-
- * lyrics in chords still fuck up.
-
- - rewire acknowledge_element() logic with a process_acknowledged()
-
- * pushgroup/popgroup
-
- * multi threading?
- - 1 thread per element/ 1 thread per line
- - 1 thread per Translator
-
- * Use hooks/dependency graphs for properties
+. * auxilliary file for caching info.
+
+. * Text_crescendo
+
+. * revise calcideal
+
+.* IDEAS
+. * Output data structures of Mudela in XML/SGML.
+. * create libmudela, or liblily_frontend
+. * move MIDI stuff (including Quantization) to a ANSI C libmidi library.
+. * Spacing_request for manually adjusting spacing
+. * caching breakpoints
+. * used fixedpoint arithmetic for min. energy.
+. * move towards incremental algorithms.
+. * versioning stuff (cvt mudela, mudela, etc.)
+. * dynamic loading of engravers?
+.* SMOBS
+Han-Wen Nienhuys <hanwen@cs.uu.nl> writes:
+
+> class Foo_class {
+> Foo_smob *smob_ptr_;
+> }
+>
+> struct Foo_smob {
+> Foo_class *class_ptr_
+> }
+
+Usually you can get away without having this interlinked structure.
+One piece of information you need when exporting objects to scheme is
+the smob tag for your class. You might store this value (a long) into
+a class static variable, or a file static variable. I'll use a class
+static variable in this example.
+
+I typically use code that works like this (untested code ahead):
+
+class Foo_class {
+ static long *Foo_smob_tag;
+ SCM obj; // representation as a scheme object, description comes later
+}
+
+// call this once on startup
+void init_Foo_class {
+ static scm_smobfuns type_rec;
+
+ type_rec.mark = foo_mark;
+ type_rec.free = foo_free;
+ type_rec.print = foo_display;
+ type_rec.equalp = 0;
+ Foo_class::Foo_smob_tag = new int(scm_new_smob(type_rec));
+}
+
+When you want to export an object to scheme, you put a pointer to the
+object itself in the cdr of the cell, and the tag in the car of the
+cell. The code looks like this:
+
+// Is this a Foo?
+static int
+foo_p(SCM obj)
+{
+ return(SCM_NIMP(obj) && SCM_CAR(obj) == Foo_class::Foo_smob_tag);
+}
+
+// given a Scheme representation, return, a C++ representation
+static Foo_class *
+foo_unbox(SCM obj)
+{
+ return((Foo_class*)SCM_CDR(obj));
+}
+
+// the SCM representation of the object is stored inside itself
+// this will become useful when destructor gets called
+static SCM
+foo_box(Foo_class *foo)
+{
+ SCM_DEFER_INTS;
+ SCM_NEWCELL(foo->obj);
+ SCM_SETCAR(foo->obj, Foo_class::Foo_smob_tag);
+ SCM_SETCDR(foo->obj, (SCM)foo);
+ SCM_ALLOW_INTS;
+ return foo->obj;
+}
+
+> C++ determines life time, so what is the strategy?
+
+What happens now when the destructor gets called? Lets set the cdr to
+NULL, and then check for that in all of the primitive functions that
+use your smob. We'll call this notion 'live'; a scheme object is
+'live' if the C++ representation still exists, it's dead if the C++
+object is gone. You can still have references to dead objects in
+scheme code; it's just an error to use them. This idea is stolen from
+Emacs's handling of buffers ('buffer-live-p' and friends).
+
+Add another function, foo_live_p:
+
+static int
+foo_live_p(SCM obj)
+{
+ return(foo_p(obj) && SCM_CDR(obj) != NULL);
+}
+
+In you destructor, you need to do:
+
+~Foo_class()
+{
+ SCM_CDR(this->obj, NULL);
+}
+
+When writing new primitives, now just check foo_live_p().
+
+I hope the above helps,
+
+-russ
+
+
+--
+"Even if you are on the right track, you'll get run over
+if you just sit there."
+ --Will Rogers (1879-1935)
+
+* OUTLINE SETUP
+.* .EMACS
+;;; from outline.el
+(defvar outline-font-lock-keywords
+ '(;; Highlight headings according to the level.
+ ;; must change this to allout node layout
+ ;;("^\\(\\*+\\)[ \t]*\\(.+\\)?[ \t]*$"
+ ("^\\([.]*[ ]*[*]\\)[ \t]*\\(.*\\)$"
+ (1 font-lock-string-face)
+ (2 (let ((len (- (match-end 1) (match-beginning 1))))
+ (or (cdr (assq len '((1 . font-lock-function-name-face)
+ (2 . font-lock-keyword-face)
+ (3 . font-lock-comment-face))))
+ font-lock-variable-name-face))
+ nil t))
+ ;; Highlight citations of the form [1] and [Mar94].
+ ("\\[\\([A-Z][A-Za-z]+\\)*[0-9]+\\]" . font-lock-type-face))
+ "Additional expressions to highlight in Outline mode.")
+
+(add-hook 'outline-mode-hook
+ '(lambda ()
+ (setq font-lock-maximum-decoration t)
+ (setq font-lock-maximum-decoration t)
+ (make-local-variable 'font-lock-defaults)
+ (setq font-lock-defaults '(outline-font-lock-keywords t))
+ (font-lock-mode global-font-lock-mode)
+ ))
+
+(require 'allout)
+(outline-init 't)
projects / lilypond.git / blobdiff