-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/urg
-
- * uniformise property names.
-
- ydirection <-> yDirection
-
- * typo checks on property names?
-
- * egcs-1.1 support
-
- * make engraver hacking robust.
-
- * fix LOCALE settings, and \def\foo{2,000pt} output
-
- * use streambufs and iostream
+-*-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)
-
- * repeat bars: need distance after ":|" and before "|:"
-
- * text continuationss
-
- * revise documentation
-
- * abbrev -> tremolo
-
- * junking \skip req in lyrics
-
- * \shape 1st dim skipped?
-
- * Choire -> Choir
-
- * Language:
- - general plet mechanism.
-
- \plet 2/3 { c8 c8 c8 }
-
- ie.
-
- Music: PLET int '/' int Music
-
- - \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.
-
- * install TeX stuff into tex/generic directory.
-
- * percussion note heads
-
- * mi2mu empty staffs.
-
- * include MIDI list
-
- * make separate translation property list.
-
- * make GNU style webpages.
-
- * There seems to be an install error in lilypond-1.0.0. Most of the
- files in the "init" directory don't get installed in the
- /usr/local/share/lilypond directory. The files installed are of
- the form feta*.ly. In particular init.ly doesn't get installed.
- I installed the files by hand and then the system seems to work.
-
- * midi_instrument -> midiInstrument
-
- * horizontal centering of dynamics
-
- * \font\fontA=feta20.afm (.afm?)
-
- * gzip RH manpage
-
- * stable make/config stuff
-
- * stemup/stemdown; see test/updown.fly
- - check examples; add \type Staff hither and thether
-
- * $DEPENDENCIES_OUTPUT support
-
- * use a fake-yodl.sh to mimick yodl when yodl is not installed
-
- * fix BUGs
-
- * fix weird behaviour when .AFMs not found.
-
- * Xdvi zooming ?!
- gs: Error: /undefined in draw_beam
- gs: Operand stack:
-
- * run texhash after installing .tex
-
- * fix vertical alignment and stafflines
-
- * GrandStaff needs more work -- I want a single word
+. * 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...)
-
- * make Tie_req a "command" { <c g> ~ <c g> }
-
- * bib ep1988
-
- * revise the Score_priority_align_engraver concept. It sucks.
-
- * ly2xdvi, ly2ps
-
- * make new VoiceOne, VoiceTwo, VoiceThree contexts with
-ydirection and hshift preset
-
- * *.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;
+. * 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 }> |
}
-
- * try to use template<Type> iso MACRO(Type)
-
- - NEWS: ... Musical_pitch (analogous to Duration and Rhythmic_req)
+. * 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)
-
- * junk My_lily_parser::abbrev_beam_type_i_
-
- * 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.
+ * < 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.
-
- * deps for ly2dvi
-
- * clean up abbrev/plet/beam/abbrevbeam/duration mess in parser.
-
- * minimum length second part broken tie
-
- * en-,discouraged linebreaking:
- - handle DISALLOW < penalty > FORCE
- - discourage breaking of slurs
-
- * multibar rest
- - symbol(s)
-
- * 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
- - plet -> tuplet
- - measure -> bar
- - abbreviation-beam -> (measured/unmeasured) tremolo
- - partial -> anacrouse
-
- * libtoolize flowerlib
-
- * 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
- - use kpsepath
- - make LilyPond fully relocatable
-
- * use kpsepath to find all TeX dirs
- - configure.in
- - clean-fonts.sh
-
- * nicen examples:
- - break-up heavily-nested score blocks
-
- * disable spaces in TeX stuff
-
- * handle ^C for tmp/file creation.
-
- * dots & rest collisions.
-
- * documentation
- - introduction?
- - info?
- - LaTeX?
- - more manpages?
-
- * versioning for Feta
-
- * the warning about the negative slur/tie length appears twice
- which is irritating.
-
- * The `3' in the meter key is a one or two pixels too thin (at 600dpi)
+. * 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:
-
- * the bracket is ugly (wings are too parabolic, should be more circular)
-
- * better hshift (dots, distance, head dependent)
-
- * clefs (AG): The "8" should appear closer to the actual clef,
- touching it.
-
- * scoping for properties?
-
- { c4
- \multi 2 < { \stemup .. } { \stemdown .. } >
- c2
- }
-
- this modifies \stem for the c2
-
- * put errorlevel in Input class
-
- * junk nesting slurs
-
- * integrate midi-elts from mi2mu and lily?
-
- * cautionary accidental
-
- * score-bar-scripts
- FMR: Free memory read:
- * This is occurring while in:
- Bar_column::do_substitute_dependency(Score_element*,Score_element*) [bar
- -column.cc:29]
- Score_element::unlink() [score-elem.cc:383]
- Paper_score::set_breaking(const Array<Column_x_positions>&) [p-score.cc:
- 150]
- Paper_score::calc_breaking() [p-score.cc:189]
- Paper_score::process() [p-score.cc:203]
- Score::run_translator(Music_output_def*) [score.cc:117]
- * Reading 4 bytes from 0x65d3a0 in the heap.
- * Address 0x65d3a0 is 160 bytes into a freed block at 0x65d300 of 208 bytes.
- * This block was allocated from:
- malloc [rtlib.o]
- __builtin_new [libgcc.a]
- Span_score_bar::clone()const [span-score-bar.hh:20]
- Item::copy_breakable_items() [item.cc:69]
- Item::do_breakable_col_processing() [item.cc:89]
- Score_element::calcalute_dependencies(int,int,void(Score_element::*)()*)
- [score-elem.cc:171]
- * There have been 22 frees since this block was freed from:
- free [rtlib.o]
- __builtin_delete [libgcc.a]
- Span_score_bar::~Span_score_bar() [span-score-bar.hh:18]
- Paper_score::set_breaking(const Array<Column_x_positions>&) [p-score.cc:
- 156]
- Paper_score::calc_breaking() [p-score.cc:189]
- Paper_score::process() [p-score.cc:203]
- Postprocessing elements...
- TeX output to score-bar-scripts.tex...
-
-
-3RD PARTY BUGS:
-
- * redhat (v?) graphical install bomb-out?
-
- * egcs-1.03 ice: stem.cc:327; should localize bug (mine's still 10K)
-
- * gcc 2.8.1: see ice and RESIZE_ICE
-
- * xdvi: PS in magnifying glass.
-
- * GNU diff 2.7: diff -rN does not see a new directory with empty file
-
- * GNU patch 2.1: <must find simple example> if patch chokes on a
- hunk, or on allegedly unsorted hunks in a diff, it may stop
- without a trace of failure (create .rej file, print error or
- dump core) and just ignore any further diffs.
-
- * glibc 2.0:
-
+. * 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))
-3RD PARTY PROJECTS:
-
- * GNU indent: handle C++
-
- * GNU make: move hardcoded builtin rules to runtime ?
-
- * GNU patch
- - 'double-fix' mode: ignore identical fix, rather than suggest
+. * 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:
+.* 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:
- - plet?
- - Staff_sym size
- - default tempo.
- - font size
- - bartypes (get rid of derived Span_bar_engravers)
- - 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)
- - 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.
-
- * a musical dictionary. See Documentation/vocabulary-*, other
+. * 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
+. * explanations
+. * italian
+. * german
+. * dutch
+. * swedish
.. ?
- * chords
- - guitar chords
- - chord names
- - basso continuo
- - Syntax/parser
- - MIDI output?
- - typesetting
-
- * 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
- - slurs
- - accents
- - dynamics
- - account for rhythmic position in measure
- - 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.
-
- * 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
-
- * piano staff
-
- * elaborate Staff_side baseclass:
- - scripts
- - text
- - slur start/end
-
- * PS
- - speed up PS code.
- - PS lines to .eps files
- - write custom prolog
-
-
- * Output an output format independent (ofi) typeset file; and
- make ofi2 TeX, MusiXTex, Display PostScript, PostScript,
- Ascii... interpreters. (difficult)
-
- - 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 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
- - endbeam req should be *after* the duration, so you can do
- < { [c4] }
- { c8. c16 } >
-
-
- * 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}?
- - Major/Minor
- - 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
-
- * 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: volta 1,2
- * configure pitch_byte
+.* SMALLISH PROJECTS
- * rest name configurable
+. * fix confusing naming in Engraver vs Engraver_group_engraver (context)
-SMALLISH PROJECTS
+. * progress when creating MIDI elts.
- * limit memory usage; the full coriolan takes up too much resources.
+. * 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.
+. * half sharps/flats
- * A range for context errors (eg. mark both { and }. )
+. * write Dynamic_line (to group dynamics horizontally)
- * lyric in staff (sharpsharp in staff, text below)
+. * use Real for all y positions.
- * half sharps/flats
+. * half-sharps, half-flats
- * write Dynamic_line (to group dynamics horizontally)
+. * adaptive accidental spacing.
- * use Real for all y positions.
- - use translate_axis( .. ,Y_AXIS) iso separate variables.
+. * handle EOF graciously in error messages.
- * half-sharps, half-flats
+. * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
- * adaptive accidental spacing.
+. * stafftypes: voice names/ instrument names.
- * handle EOF graciously in error messages.
+. * lily \tempo
- * centered whole rest
-
- * declare notenametab?
-
- * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
-
- * Flower types:
- - A decent scalar type
- - String hash
- - Pointer hash
-
- * binsearch/hash for identifiers
-
- * stafftypes: voice names/ instrument names.
-
- * lily \tempo
-
- * C meter iso 4/4, idem for alla breve, etc.
-
- * textspanner: center position
-
- * % 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 data structures of Mudela in XML/SGML.
-
- * 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
- - Translators
-
- * y -dims in internote? Staff-space? X-dimensions?
-
- * Spacing_request for manually adjusting spacing
-
- * caching breakpoints
-
- * 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
-
- * versioning stuff (cvt mudela, mudela, etc.)
-
- * Klavarskribo?
-
- * lyrics in chords still fuck up.
-
- * 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