release: 1.1.55

[lilypond.git] / TODO

diff --git a/TODO b/TODO
index 16fe362e578578446f084d9657cc0027fd9c8020..a8215f79151aa907d10dabc13b9c73540dd36a0a 100644 (file)
--- a/TODO
+++ b/TODO
@@ -1,71 +1,107 @@
-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
-
-BUGS:
-       * c4 \! \> c4
-
-       * tremolo stuff
-
-       * gallina barlines.
-
-       * fix height of / collisions with lyrics (chords), 
-          see input/test/vertical-text.ly
-
-       * repeat/volta:
-         - one volta spanner per score
-         - repeat bars span staffs
-         - placement alternative number
-
-       * who is trying to print too (small/big) piano braces all the time?
-           warning: piano brace too small (16.000pt)
-
-       * latex bla.tex broken (titles / \lilyfooter stuff?)
-
-       * msgfmt -o check?
-
-       * \breathmark TeX macro 
-
-       * configure error if GUILE 1.3 not found
-
-       * configure error if no rtti (gcc 2.8 or egcs-1.1)
-
-       * catch GUILE errors?
-
-       * add new glyphs to font.ly
-
-       * formatting of input stuff. 
-
-       * \notes{ a \< b \cr } vs \notes{ a \< b \! }
-
-       * if possible, it might be nice for a warning to appear if someone does
-       \translator with no name and without assigning it to an
-       identifier.  
-
-       * space after bars?
-
-       * \type Voice \times 2/3 { [c8 c16 c16 c16 c16] }
-
-       * fix singleStaffBracket
-
-       * repeat bars: need distance after ":|" and before "|:"
-
-       * The time signature warnings still remain, will be fixed later.
-
-       Summary of minor spelling irregularities:
-       -  capitalization/use of underscores in property names
-
-       * fix SkipBars  -> skipBars
-
-       * \shape 1st dim skipped? 
-
-       * fix marks/barnumbers/marginal notes
-
-       * broken scripts:
+-*-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
+. * sane strategy for extensions (assume .ly):
+02:22:24 appel ~/usr/src/lilypond$ lilypond foo
+GNU LilyPond 1.1.54.
+[/home/fred/usr/src/lilypond/scm/lily.scm]
+warning: can't find file: `init'
+. * indent = 0.0 with linewidth=-1.0
+. * music ending in grace notes.
+. * PostScript
+.  * half notes in pfa
+. * didot / big point.
+. * check EGCS version
+. * input/test/stem-spacing.ly: 12/4 touches first note
+. * \shape 1st dim skipped? 
+. * turn slope-damping on/off
+. * We need feta-din*.mf files for more sizes than 10.
+. * fix dynamics decently, ie. use kerning & ligatures.  
+. * dots & rest collisions?
+. * behavior of  "that the obvious solution
+\lyrics { foo1*4 __ _ }" is unintuitive.
+. * Lyrics and scripts collide.
+. * a note with a circle after it, meaning:
+
+   note + circle = note + 1/4 of its length
+
+   the circle is like a dot that's not filled in.  for example, on
+   page three, the c-sharp on the second line should be a quarter with 
+   a circle, not a quarter tied to a sixteenth.  is this at all
+   possible with lily?
+. * grace_align_item -> stackingdir = left, weird placement.
+. * grace before triplet, see standchen
+. * tuplets that are written as "number : note", for example
+   "3 : [image of a half note here]".  possible?
+
+. * filenames : junk lily.x 
+
+. * Matanya's tips: 
+.  * don't  shorten stems/staffs closer to each other.
+.  * accidentals closer to note head
+.  * to space the staffs/staffgroups contained in the score.  
+.  * heavier beams?
+
+.* Cleanups needed
+. * \$ and $ identifier syntax in examples.
+. * bracket ps code.
+. * Key_engraver, Local_key_item
+. * Think of comprehensive solution for "if (grace_b == self_grace_b_)"
+. * Y dimension units: staffspace vs. Point
+. * Beam
+. * Stem
+. * Rhythmic_column and interaction stem/rhythmic_column/note_head/dots.
+. * Slur
+. * Duration
+. * clef engraver 
+. * parser
+
+.* TODO before 1.2
+. * rename midi2ly, abc2ly mup2ly
+. * Grace_slur_engraver.
+. * Break_req handling is silly (break_forbid () + \break fucks up.)
+. * Morally pure LilyPond.
+.  * Remove non-free software links.
+.  * Remove meta article LilyPond.
+. * break priority setting from SCM.
+. * hangOnClef with non-breakable clefs.
+. * Abstraction for engravers:
+.  * make "in-between" engraver (Tie, Extender)
+.  * make wide_spanner_engraver (line_group_spanner, staff_symbol)
+. * do scaled fonts generally 
+. * make dependencies () a virtual function.
+. * store req -> element, element -> element causes for warnings
+. * include examples in RPM.
+. * fix partial measures in meaningful way.
+. * relative mode for mi2mu
+. * uniformise recent feta contributions.
+.  * bigger and fatter 4/4 C
+. * sort out directory stuff.
+.  * --prefix option?
+.  * -I option per filetype?
+.  * kpathsea?
+. * ly2dvi/lilypond logfile.
+. * fractional chord durs.
+. * hang Item on Spanner
+. * do --safe for PS output?
+. * convert-mudela --output
+. * Staff_margin (with a partial measure.)
+. * fix convert-mudela manpage
+. * decimal point in \paper {}
+. * scm-ify \property values.
+. * move class Lookup {} into scm
+. * msgfmt -o check?
+. * add new glyphs to font.ly
+. * formatting of input stuff. 
+. * 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 }
        lbheel = \script { "bheel" 0 0 -1  0 0 }
        rbheel = \script { "bheel" 0 0 1 0 0 }
        lbtoe = \script { "btoe" 0 0 -1 0 0 }


@@ -74,444 +110,359 @@ BUGS:
        rfheel = \script { "fheel" 0 0 1 0 0 }
        lftoe = \script { "ftoe" 0 0 -1 0 0 }
        rftoe = \script { "ftoe" 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 }
-
-STUFF
-       * uniformise recent feta contributions.
-
-       * check out legal/(c) matters for scores.
-
-       * check out GCC signatures?
-
-       * Align_element::padding  ?
-
-       * uniformise property names.
-
-       * ydirection <-> yDirection
-
-       * typo checks on property names?
-
-       * use streambufs and iostream
+.  * deps for ly2dvi
+
+. * decide wether to junk _ in lyrics. 
+
+.* STUFF
+. * compulsory hshift
+. * 
+My wish list for lyrics. I dream of a time when I will have enough time to
+become familiar enough with the source code to be able to implement some of
+these myself, but I don't know when that will be, so I thought I'd "publish"
+my suggestions in case someone else is in a position to give them some
+priority. Otherwise, perhaps they could go on the todo list?
+
+If any of these are already implemented, please let me what the syntax is to
+use them!
+
+1. Stanza numbering. Numbering at the beginning of a song with the number
+set to the left of the first note. It would also be nice (but not as
+important) to be able to have some form of automatic numbering at the
+beginning of each new line. This would make it easier to follow songs with a
+large number of stanzas.
+
+2. Hyphens between syllables. At the moment there appears to be no easy way
+to position a hyphen mid-way between the syllables it breaks.
+
+3. Notes centred above/below lyrics rather than left-aligned.
+
+4. It would be very nice to be able to build some kind of phrasing into the
+lyrics of hymns, etc, so that the first words of a phrase are left aligned
+with each other, the last words are right aligned, and the words in between
+are centred.
+
+5. In a song, with (say) four stanzas and a chorus, it would be nice to be
+able to vertically align the chorus midway between the staves.
+
+6. It would be nice to be able to put vertical brackets either side of a
+repeated section with different words for each repeat.
+
+. * Give # lines in linebreaking.  
+. * arrows on slurs.
+. * rewrite context defs using Scheme
+. * \selectmusic to cut pieces from music. 
+. * TODO: merge atom & molecule; make  tree from molecule.
+. * Align_element::padding  ?
+. * typo checks on property names?
+. * use streambufs and iostream

        to provide IO handling for TeX stream, mudela stream, data-file.
        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
-
-       * 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.
-
-       * percussion note heads
-
-       * mi2mu empty staffs.
-
-       * midi_instrument -> midiInstrument
-
-       * horizontal centering of dynamics 
-
-       * \font\fontA=feta20.afm (.afm?)
-
-       * gzip RH manpage
-
-       * stable make/config stuff
-
-       * $DEPENDENCIES_OUTPUT support
-
-       * fix BUGs
-
-       * fix weird behaviour when .AFMs/.SCMs not found.
-
-       * Xdvi zooming ?! Try to understand GS garbage collection.
-               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
-       `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> }
-
-       * revise the Score_priority_align_engraver concept.  It sucks. 
-
-       * 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;
+. * 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
+. * mi2mu empty staffs.
+. * use Fourier transformation for rhythmic quantisation.
+. * horizontal centering of dynamics 
+. * $DEPENDENCIES_OUTPUT support
+. * fix vertical alignment and stafflines
+. * declaring Performers
+. * *.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 }> |
        }
        <{\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?
          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;
+. * 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. 
        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
-         - 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
-       - make LilyPond RPM fully relocatable
-
-       * 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!)
+. * add mudela-book-doc source to webstie.
+. * Rethink Time_description
+\cadenza , \meter,  should all be \properties
+. * fix singleStaffBracket
+. * rename
+.  * measure -> bar
+.  * abbreviation-beam -> (measured/unmeasured) tremolo
+.  * partial -> anacrouse
+. * robustify Beam (in case of no stems, 32nd notes)
+. * 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.
+. * 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
+. * distinguish between unset and empty properties. 
+
+.* FONT
+. * the bracket is ugly (wings are too parabolic, should be more circular)
+. * versioning for Feta
+. * rewrite dynamic signs.  They're kind of spaghetti now. 
+. * The `3' in the meter key is a one or two pixels too thin (at 600dpi)

        in the middle:
        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.
-
-       * put errorlevel in Input class
-
-       * junk nesting slurs
-
-       * integrate midi-elts from mi2mu and lily?
-
-       * 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:
-
-       * make GCC warn about ctor that leaves member vars  uninitialised.
-
-       * redhat (v?) graphical install bomb-out?
-
-       * 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.
+. * 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
+. * include important spacing dims in fetalog 
+. * scalability: use blot_diameter everywhere, make font chubbier for
+    small sizes.
+
+.* 3RD PARTY BUGS
+. * UMR: Uninitialized memory read
+      This is occurring while in:
+            qst            [qsort.c]
+            qsort          [libc.so.1]
+            Keyword_table::Keyword_table(Keyword_ent*) [keyword.cc:28]
+            My_lily_lexer::My_lily_lexer() [my-lily-lexer.cc:78]
+            My_lily_parser::parse_file(String,String) [my-lily-parser.cc:54]
+            do_one_file(String,String) [scores.cc:124]
+      Reading 4 bytes from 0xefffeca8 on the stack.
+      Address 0xefffeca8 is 728 bytes below frame pointer in function 
+. * GNU diff 2.7: diff -rN does not see a new directory with empty file
+. * patch: don't touch timestamp if all patches fail.
+. * mf-to-table -> add space before ; in AFM output.  (-> check AFM
+    spec. Is this a bug in afm2tfm?)
+. * check out GCC signatures?
+. * glibc 2.0:

          f = fopen ("/dev/null", "r")
          assert (feof (f))
 
          f = fopen ("/dev/null", "r")
          assert (feof (f))
 

-3RD PARTY PROJECTS:
-
-       * GNU indent: handle C++
-
-       * GNU patch 
-         - 'double-fix' mode: ignore identical fix, rather than suggest 
+. * tetex: mfplain.mem
+. * timesig: sometimes bottom digit  too high: Xdvi doesn't handle
+    newly created fonts correctly.
+.* 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
            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:
+.  * stack scripts in chords:

          % fingering:        footing:
            < a-4 c-2 g-1 >   < c-\ltoe e-\lheel >
          % 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)
-       - 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
+.  * 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.
+
+. * internationalisation for input.
+.  * Unicode support? -> man 7 unicode
+.  * (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.
+
+. * \header
+.  * output header info to MIDI too.
+
+. * a musical dictionary. See Documentation/vocabulary-*, other
+languages:
+.  * explanations
+.  * italian
+.  * german
+.  * dutch
+.  * swedish

         .. ?
 
         .. ?
 

-       * 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
-       - 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 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, 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:
+. * 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:
+.  * sharp / flat on trills (in MIDI ??)
+.  * tempo change
+.  * ornaments (and trills?)
+.  * slurs
+.  * accents
+.  * dynamics
+> Would it be hard to add support for proper dynamics in MIDI output?  I
+> would really like to have this feature...
+
+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 Write a Dynamics_performer that will modify
+  any notes it finds to set appropriate strengths.
+
+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.
+
+
+. * 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
+
+. * SGML input
+
+. * Documentation
+.  * remove links to non-free SW.
+.  * internal documentation
+.  * a general paper. 
+.  * \properties
+.   * left/rightbeamcount
+.   * various other new properties.
+.  * introduction?
+.  * info?
+.  * LaTeX?
+.  * more manpages?
+.  * Doc (C) stuff of sheet music
+.  * a better format?  SGML?  TeX?  Info?
+.  * a better tutorial
+
+. * more spanners (smallish)
+.  * Glissando
+.  * trill
+
+. * Rewrite Stem, Beam (hairy)
+.  * general shaving on Beam and Stem
+.  * use plet grouping
+.  * 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> } >
 
        < \multi 2; { \stem 1; <b c> } { <f as b> } >
 

-       * 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
-
-       * 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
+. * convention for slurs vs. phrasing marks.
+. * Language:
+.  * \translator -> ?
+.  * fix \partial 
+.  * \bla {} vs \bla ; 
+.  * mix engraver hacking with music ?
+.  * \once\property  KEY = VAL
+.  * input property
+.  * 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
 
                @c c g e g 
        for


@@ -520,56 +471,33 @@ INPUTLANGUAGE
                @A c g e g
        for
                cis gis e gis
                @A c g e g
        for
                cis gis e gis

+. * configure pitch_byte
+. * rest name configurable

 
 

-       * relative mode for pitch entering
-
-       * configure pitch_byte
-
-       * rest name configurable
-
-SMALLISH PROJECTS
-
-       * limit memory usage; the full coriolan takes up too much resources.
-
-       * fix confusing naming in Engraver vs Engraver_group_engraver (context)
-
-       * progress when creating MIDI elts.
-
-       * A range for context errors (eg. mark both { and }. )
-
-       * lyric in staff  (sharpsharp in staff, text below)

 
 

-       * half sharps/flats
+.* SMALLISH PROJECTS

 
 

-       * write Dynamic_line (to group dynamics horizontally)
+. * fix confusing naming in Engraver vs Engraver_group_engraver (context)

 
 

-       * use Real for all y positions.
-       - use translate_axis( .. ,Y_AXIS)  iso separate variables.
+. * A range for context errors (eg. mark both { and }. )

 
 

-       * half-sharps, half-flats
+. * lyric in staff  (sharpsharp in staff, text below)

 
 

-       * adaptive accidental spacing.
+. * write Dynamic_line (to group dynamics horizontally)

 
 

-       * handle EOF graciously in error messages.
+. * use Real for all y positions.

 
 

-       * centered whole rest
+. * half-sharps, half-flats

 
 

-       * declare notenametab?
+. * adaptive accidental spacing.

 
 

-       * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)
+. * handle EOF graciously in error messages.

 
 

-       * Flower types:
-       - A decent scalar type
+. * midi esp.: use I32 iso int where 32 bits are needed (or assumed...)

 
 

-       * stafftypes: voice names/ instrument names.
+. * lily \tempo

 
 

-       * 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--
            %   ^_u            4_5  
            %     -                           
            %  --|x--         --|x--


@@ -577,163 +505,44 @@ SMALLISH PROJECTS
            %  --|---         --|---
           (where "to" is a tiny bow)
 
            %  --|---         --|---
           (where "to" is a tiny bow)
 

-       * auxilliary file for caching info.
-
-       * Text_crescendo
-
-       * clean solution for staffsize in items.
-
-       * 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.
-
-       * 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
-
-       * 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?
-
-       * dynamic loading of engravers? 
-
-SMOBS:
-
-****************************************
-Han-Wen Nienhuys <hanwen@cs.uu.nl> writes:
-
-> mcmanus@IDT.NET writes:
-> > > I want different C++ objects (with scheme embedded) to be linked by
-> > > C++ pointers.  I want to access these other objects from the Scheme
-> > > code, and I want access to these pointers from C++.
-> > 
-> > You can do this with a  combination of smob's and primitive functions,
-> > though it may not be  be exactly what you wanted.   You would have one
-> > smob  for each class in  your application, and then  you would write a
-> > primitive function that would return the objects  that are linked to a
-> > base object.
-> 
-> And the smob and the C++ class are interlinked?  Like
-> 
->      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)
-
-***************************
+. * auxilliary file for caching info.
+. * Text_crescendo
+
+.* 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.
+
+* 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)