lily/parser.yy

   1 %{ // -*-Fundamental-*-
   2
   3 /*
   4   parser.yy -- Bison/C++ parser for lilypond
   5
   6   source file of the GNU LilyPond music typesetter
   7
   8   (c)  1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9            Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13   Four shift/reduce problems:
  14
  15 1.      foo = bar.
  16
  17         "bar" -> String -> Lyric -> Music -> music-assignment
  18
  19         "bar" -> String -> string-assignment
  20
  21
  22 Similar problem for
  23
  24  * \markup identifier.
  25  * \markup { }
  26
  27
  28 2.  \repeat
  29         \repeat .. \alternative
  30
  31
  32     \repeat { \repeat .. \alternative }
  33
  34 or
  35
  36     \repeat { \repeat } \alternative
  37
  38 )
  39
  40 --hwn
  41
  42  */
  43
  44 /*
  45
  46 TODO:
  47
  48 * The rules for who is protecting what are very shady. Uniformise
  49   this.
  50
  51 * There are too many lexical modes?
  52
  53 */
  54
  55 #include <ctype.h>
  56 #include <stdlib.h>
  57
  58
  59 #include "scm-option.hh"
  60 #include "translator-def.hh"
  61 #include "lily-guile.hh"
  62 #include "misc.hh"
  63 #include "my-lily-lexer.hh"
  64 #include "paper-def.hh"
  65 #include "midi-def.hh"
  66 #include "main.hh"
  67 #include "file-path.hh"
  68 #include "warn.hh"
  69 #include "dimensions.hh"
  70 #include "my-lily-parser.hh"
  71 #include "score.hh"
  72 #include "input-file-results.hh"
  73 #include "input.hh"
  74 #include "lilypond-input-version.hh"
  75 #include "scm-hash.hh"
  76 #include "auto-change-iterator.hh"
  77 #include "ly-modules.hh"
  78 #include "music-sequence.hh"
  79 #include "input-smob.hh"
  80 #include "event.hh"
  81 #include "text-item.hh"
  82 #include "music-list.hh"
  83
  84
  85 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  86
  87
  88
  89 #define YYERROR_VERBOSE 1
  90
  91 My_lily_parser* my_lily_parser;
  92 #define YYPARSE_PARAM my_lily_parser
  93 #define YYLEX_PARAM my_lily_parser
  94 #define THIS\
  95         ((My_lily_parser *) my_lily_parser)
  96
  97 #define yyerror THIS->parser_error
  98
  99
 100
 101
 102
 103 bool
 104 regular_identifier_b (SCM id)
 105 {
 106   String str = ly_scm2string (id);
 107   char const *s = str.to_str0 () ;
 108
 109   bool v = true;
 110   while (*s && v)
 111    {
 112         v = v && isalpha (*s);
 113         s++;
 114    }
 115   return v;
 116 }
 117
 118 SCM
 119 make_simple_markup (SCM a)
 120 {
 121         static SCM simple;
 122         if (!simple)
 123         simple = scm_c_eval_string ("simple-markup");
 124
 125         return scm_list_n (simple, a, SCM_UNDEFINED);
 126 }
 127
 128
 129 bool
 130 is_duration_b (int t)
 131 {
 132   return t && t == 1 << intlog2 (t);
 133 }
 134
 135 void
 136 set_music_properties (Music *p, SCM a)
 137 {
 138   for (SCM k = a; gh_pair_p (k); k = ly_cdr (k))
 139         {
 140         p->internal_set_mus_property (ly_caar (k), ly_cdar (k));
 141         }
 142 }
 143
 144 SCM
 145 make_chord_step (int step, int alter)
 146 {
 147         if (step == 7)
 148                 alter--;
 149
 150         /* ugh: fucks up above 13 */
 151         Pitch m(step > 7 ? 1 : 0,(step - 1) % 7, alter);
 152         return m.smobbed_copy ();
 153 }
 154
 155
 156 SCM
 157 make_chord (SCM pitch, SCM dur, SCM modification_list)
 158 {
 159         static SCM chord_ctor;
 160         if (!chord_ctor)
 161                 chord_ctor= scm_c_eval_string ("construct-chord");
 162         SCM ch=  scm_call_3 (chord_ctor, pitch, dur, modification_list);
 163         scm_gc_protect_object (ch);
 164         return ch;
 165 }
 166
 167 /*
 168   Todo: actually also use apply iso. call too ...
 169 */
 170 bool
 171 ly_input_procedure_p (SCM x)
 172 {
 173         return gh_procedure_p (x)
 174                 || (gh_pair_p (x) && gh_procedure_p (gh_car (x)));
 175 }
 176
 177 Music*
 178 set_property_music (SCM sym, SCM value)
 179 {
 180         Music * p = MY_MAKE_MUSIC("PropertySet");
 181         p->set_mus_property ("symbol", sym);
 182         p->set_mus_property ("value", value);
 183         return p;
 184 }
 185
 186 %}
 187
 188 /* We use SCMs to do strings, because it saves us the trouble of
 189 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 190 of the parse stack onto the heap. */
 191
 192
 193 %union {
 194         String * string;
 195     Music *music;
 196     Score *score;
 197     Music_output_def * outputdef;
 198     SCM scm;
 199     int i;
 200 }
 201 %{
 202
 203 int
 204 yylex (YYSTYPE *s,  void * v)
 205 {
 206         My_lily_parser   *pars = (My_lily_parser*) v;
 207         My_lily_lexer * lex = pars->lexer_;
 208
 209         lex->lexval = (void*) s;
 210         lex->prepare_for_next_token();
 211         return lex->yylex ();
 212 }
 213
 214
 215 %}
 216
 217 %pure_parser
 218
 219
 220 %token ACCEPTS
 221 %token ADDLYRICS
 222 %token ALIAS
 223 %token ALTERNATIVE
 224 %token APPLY
 225 %token APPLYCONTEXT
 226 %token APPLYOUTPUT
 227 %token AUTOCHANGE
 228 %token BAR
 229 %token BREATHE
 230 %token CHORDMODIFIERS
 231 %token CHORDS
 232 %token CHORD_CLOSE
 233 %token CHORD_OPEN
 234 %token CLEF
 235 %token COMMANDSPANREQUEST
 236 %token CONSISTS
 237 %token CONSISTSEND
 238 %token CONTEXT
 239 %token DEFAULT
 240 %token DENIES
 241 %token DESCRIPTION
 242 %token DURATION
 243 %token EXTENDER
 244 %token FIGURES FIGURE_OPEN FIGURE_CLOSE
 245 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 246 %token GRACE
 247 %token ACCACCIATURA
 248 %token APPOGGIATURA
 249 %token GROBDESCRIPTIONS
 250 %token HEADER
 251 %token HYPHEN
 252 %token INVALID
 253 %token KEY
 254 %token LYRICS
 255 %token MARK
 256 %token MIDI
 257 %token MULTI_MEASURE_REST
 258 %token NAME
 259 %token NEWCONTEXT
 260 %token NOTES
 261 %token OCTAVE
 262 %token ONCE
 263 %token OUTPUTPROPERTY
 264 %token OVERRIDE SET REVERT
 265 %token PAPER
 266 %token PARTCOMBINE
 267 %token PARTIAL
 268 %token PITCH
 269 %token PITCHNAMES
 270 %token PROPERTY
 271 %token RELATIVE
 272 %token REMOVE
 273 %token REPEAT
 274 %token REST
 275 %token SCM_T
 276 %token SCORE
 277 %token SEQUENTIAL
 278 %token SIMULTANEOUS
 279 %token SKIP
 280 %token SPANREQUEST
 281 %token TEMPO
 282 %token TIMES
 283 %token TIME_T
 284 %token TRANSLATOR
 285 %token TRANSPOSE
 286 %token TYPE
 287 %token UNSET
 288
 289
 290 /* escaped */
 291 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 292 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 293 %token E_BACKSLASH
 294 %token <i> E_UNSIGNED
 295 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 296 %token FIGURE_SPACE
 297
 298 %type <i>       exclamations questions dots optional_rest
 299 %type <i>        bass_mod
 300 %type <scm>     grace_head
 301 %type <scm>     lyric_element
 302 %type <scm>     bass_number br_bass_figure bass_figure figure_list figure_spec
 303 %token <i>      DIGIT
 304 %token <scm>    NOTENAME_PITCH
 305 %token <scm>    TONICNAME_PITCH
 306 %token <scm>    CHORDMODIFIER_PITCH
 307 %token <scm>    DURATION_IDENTIFIER
 308 %token <scm>    FRACTION
 309 %token <id>     IDENTIFIER
 310 %token <scm>    CHORDNAMES
 311
 312 %token <scm> CHORD_MODIFIER
 313
 314 %token <scm>    SCORE_IDENTIFIER
 315 %token <scm>    MUSIC_OUTPUT_DEF_IDENTIFIER
 316 %token <scm>    NUMBER_IDENTIFIER
 317 %token <scm>    EVENT_IDENTIFIER
 318 %token <scm>    MUSIC_IDENTIFIER TRANSLATOR_IDENTIFIER
 319 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 320 %token <scm>    RESTNAME
 321 %token <scm>    STRING
 322 %token <scm>    SCM_T
 323 %token <i>      UNSIGNED
 324 %token <scm>   REAL
 325
 326 %token MARKUP
 327 %token <scm> MARKUP_HEAD_MARKUP0
 328 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 329 %token <scm> MARKUP_HEAD_SCM0
 330 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 331 %token <scm> MARKUP_HEAD_SCM0_SCM1
 332 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 333 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 334
 335 %token <scm> MARKUP_IDENTIFIER MARKUP_HEAD_LIST0
 336 %type <scm> markup markup_line markup_list  markup_list_body full_markup
 337
 338 %type <outputdef> output_def
 339 %type <scm>     lilypond_header lilypond_header_body
 340 %type <music>   open_event close_event
 341 %type <i>       sub_quotes sup_quotes
 342 %type <music>   simple_element  event_chord command_element Simple_music  Composite_music
 343 %type <music>   Repeated_music
 344 %type <scm>     Alternative_music
 345 %type <i>       tremolo_type
 346 %type <i>       bare_int  bare_unsigned
 347 %type <i>       script_dir
 348 %type <scm>     identifier_init
 349
 350 %type <music> note_chord_element chord_body chord_body_element
 351 %type <scm>  chord_body_elements
 352 %type <scm> steno_duration optional_notemode_duration multiplied_duration
 353 %type <scm>  verbose_duration
 354
 355 %type <scm>   post_events
 356 %type <music> gen_text_def direction_less_event direction_reqd_event
 357 %type <scm>   steno_pitch pitch absolute_pitch pitch_also_in_chords
 358 %type <scm>   explicit_pitch steno_tonic_pitch
 359 %type <scm>     duration_length fraction
 360
 361 %type <scm> new_chord step_number chord_items chord_item chord_separator step_numbers
 362
 363 %type <scm>  embedded_scm scalar
 364 %type <music>   Music Sequential_music Simultaneous_music
 365 %type <music>   relative_music re_rhythmed_music part_combined_music
 366 %type <music>   property_def translator_change  simple_property_def
 367 %type <scm> Music_list
 368 %type <outputdef>  music_output_def_body
 369 %type <music> shorthand_command_req
 370 %type <music>   post_event
 371 %type <music> command_req verbose_command_req
 372 %type <music>   extender_req
 373 %type <music> hyphen_req
 374 %type <music> string_number_event
 375 %type <scm>     string bare_number number_expression number_term number_factor
 376 %type <score>   score_block score_body
 377
 378 %type <scm>     translator_spec_block translator_spec_body
 379 %type <music>   tempo_event
 380 %type <scm> notenames_body notenames_block chordmodifiers_block
 381 %type <scm>     script_abbreviation
 382
 383
 384
 385 %left '-' '+'
 386
 387 /* We don't assign precedence to / and *, because we might need varied
 388 prec levels in different prods */
 389
 390 %left UNARY_MINUS
 391
 392 %%
 393
 394 lilypond:       /* empty */
 395         | lilypond toplevel_expression {}
 396         | lilypond assignment  { }
 397         | lilypond error {
 398                 THIS->error_level_  = 1;
 399         }
 400         | lilypond INVALID      {
 401                 THIS->error_level_  = 1;
 402         }
 403         ;
 404
 405 toplevel_expression:
 406         notenames_block                 {
 407                 THIS->lexer_->pitchname_tab_ =  $1;
 408         }
 409         | chordmodifiers_block                  {
 410                 THIS->lexer_->chordmodifier_tab_  = $1;
 411         }
 412         | lilypond_header {
 413                 THIS->input_file_->header_ = $1;
 414         }
 415         | score_block {
 416                 THIS->input_file_->scores_.push ($1);
 417         }
 418         | output_def {
 419                 if (dynamic_cast<Paper_def*> ($1))
 420                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultpaper"), $1->self_scm ());
 421                 else if (dynamic_cast<Midi_def*> ($1))
 422                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultmidi"), $1->self_scm ());
 423         }
 424         ;
 425
 426 embedded_scm:
 427         SCM_T
 428         | SCM_IDENTIFIER
 429         ;
 430
 431
 432 chordmodifiers_block:
 433         CHORDMODIFIERS notenames_body   {  $$ = $2; }
 434         ;
 435
 436 notenames_block:
 437         PITCHNAMES notenames_body   {  $$ = $2; }
 438         ;
 439
 440 notenames_body:
 441         embedded_scm    {
 442           int i = scm_ilength ($1);
 443
 444           SCM tab = scm_make_vector (gh_int2scm (i), SCM_EOL);
 445           for (SCM s = $1; gh_pair_p (s); s = ly_cdr (s)) {
 446                 SCM pt = ly_cdar (s);
 447                 scm_hashq_set_x (tab, ly_caar (s), pt);
 448           }
 449           $$ = tab;
 450         }
 451         ;
 452
 453 lilypond_header_body:
 454         {
 455                 $$ = ly_make_anonymous_module ();
 456                 THIS->lexer_->add_scope ($$);
 457         }
 458         | lilypond_header_body assignment  {
 459
 460         }
 461         ;
 462
 463 lilypond_header:
 464         HEADER '{' lilypond_header_body '}'     {
 465                 $$ = THIS->lexer_-> remove_scope();
 466         }
 467         ;
 468
 469
 470 /*
 471         DECLARATIONS
 472 */
 473 assignment:
 474         STRING {
 475                 THIS->push_spot ();
 476         }
 477         /* cont */ '=' identifier_init  {
 478
 479         /*
 480                 Should find generic way of associating input with objects.
 481         */
 482                 Input ip = THIS->pop_spot ();
 483
 484                 if (! regular_identifier_b ($1))
 485                 {
 486                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 487                 }
 488
 489                 THIS->lexer_->set_identifier ($1, $4);
 490
 491 /*
 492  TODO: devise standard for protection in parser.
 493
 494   The parser stack lives on the C-stack, which means that
 495 all objects can be unprotected as soon as they're here.
 496
 497 */
 498         }
 499         | embedded_scm { }
 500         ;
 501
 502
 503
 504 identifier_init:
 505         score_block {
 506                 $$ = $1->self_scm ();
 507                 scm_gc_unprotect_object ($$);
 508         }
 509         | full_markup {
 510                 $$ = $1;
 511         }
 512         | output_def {
 513                 $$ = $1->self_scm ();
 514                 scm_gc_unprotect_object ($$);
 515         }
 516         | translator_spec_block {
 517                 $$ = $1;
 518         }
 519         | Music  {
 520                 $$ = $1->self_scm ();
 521                 scm_gc_unprotect_object ($$);
 522         }
 523         | post_event {
 524                 $$ = $1->self_scm ();
 525                 scm_gc_unprotect_object ($$);
 526         }
 527         | verbose_duration {
 528                 $$ = $1;
 529         }
 530         | number_expression {
 531                 $$ = $1;
 532         }
 533         | string {
 534                 $$ = $1;
 535         }
 536         | embedded_scm  {
 537                 $$ = $1;
 538         }
 539         ;
 540
 541 translator_spec_block:
 542         TRANSLATOR '{' translator_spec_body '}'
 543                 {
 544                 $$ = $3;
 545         }
 546         ;
 547
 548 translator_spec_body:
 549         TRANSLATOR_IDENTIFIER   {
 550                 $$ = $1;
 551                 unsmob_translator_def ($$)-> set_spot (THIS->here_input ());
 552         }
 553         | TYPE STRING   {
 554                 $$ = Translator_def::make_scm ();
 555                 Translator_def*td =  unsmob_translator_def ($$);
 556                 td->translator_group_type_ = $2;
 557                 td->set_spot (THIS->here_input ());
 558         }
 559         | translator_spec_body DESCRIPTION string  {
 560                 unsmob_translator_def ($$)->description_ = $3;
 561         }
 562         | translator_spec_body STRING '=' embedded_scm                  {
 563                 unsmob_translator_def ($$)->add_property_assign ($2, $4);
 564         }
 565         | translator_spec_body STRING OVERRIDE embedded_scm '=' embedded_scm {
 566                 unsmob_translator_def ($$)
 567                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 568         }
 569         | translator_spec_body STRING SET embedded_scm '=' embedded_scm {
 570                 unsmob_translator_def ($$)
 571                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 572         }
 573         | translator_spec_body STRING REVERT embedded_scm  {
 574           unsmob_translator_def ($$)->add_pop_property (
 575                 scm_string_to_symbol ($2), $4);
 576         }
 577         | translator_spec_body NAME STRING  {
 578                 unsmob_translator_def ($$)->type_name_ = $3;
 579         }
 580         | translator_spec_body CONSISTS STRING  {
 581                 unsmob_translator_def ($$)->add_element ($3);
 582         }
 583         | translator_spec_body ALIAS STRING  {
 584                 Translator_def*td = unsmob_translator_def ($$);
 585                 td->type_aliases_ = scm_cons ($3, td->type_aliases_);
 586         }
 587         | translator_spec_body GROBDESCRIPTIONS embedded_scm {
 588                 Translator_def*td = unsmob_translator_def($$);
 589                 // td->add_property_assign (ly_symbol2scm ("allGrobDescriptions"), $3);
 590                 for (SCM p = $3; gh_pair_p (p); p = ly_cdr (p))
 591                         td->add_property_assign (scm_symbol_to_string (ly_caar (p)), ly_cdar (p));
 592         }
 593         | translator_spec_body CONSISTSEND STRING  {
 594                 unsmob_translator_def ($$)->add_last_element ( $3);
 595         }
 596         | translator_spec_body ACCEPTS STRING  {
 597                 unsmob_translator_def ($$)->set_acceptor ($3,true);
 598         }
 599         | translator_spec_body DENIES STRING  {
 600                 unsmob_translator_def ($$)->set_acceptor ($3,false);
 601         }
 602         | translator_spec_body REMOVE STRING  {
 603                 unsmob_translator_def ($$)->remove_element ($3);
 604         }
 605         ;
 606
 607 /*
 608         SCORE
 609 */
 610 score_block:
 611         SCORE {
 612                 THIS->push_spot ();
 613         }
 614         /*cont*/ '{' score_body '}'     {
 615                 THIS->pop_spot ();
 616                 $$ = $4;
 617                 if (!$$->defs_.size ())
 618                 {
 619                   Music_output_def *id =
 620                         unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 621                   $$->add_output (id ? id->clone () :  new Paper_def );
 622                 }
 623         }
 624         ;
 625
 626 score_body:
 627         Music   {
 628                 $$ = new Score;
 629
 630                 $$->set_spot (THIS->here_input ());
 631                 SCM m = $1->self_scm ();
 632                 scm_gc_unprotect_object (m);
 633
 634                 /*
 635                         guh.
 636                 */
 637                 SCM check_funcs = scm_c_eval_string ("toplevel-music-functions");
 638                 for (; gh_pair_p (check_funcs); check_funcs = gh_cdr (check_funcs))
 639                         m = gh_call1 (gh_car (check_funcs), m);
 640                 $$->music_ = m;
 641
 642         }
 643         | SCORE_IDENTIFIER {
 644                 $$ = unsmob_score ($1);
 645                 $$->set_spot (THIS->here_input ());
 646         }
 647         | score_body lilypond_header    {
 648                 $$->header_ = $2;
 649         }
 650         | score_body output_def {
 651                 $$->add_output ($2);
 652         }
 653         | score_body error {
 654
 655         }
 656         ;
 657
 658
 659 /*
 660         MIDI
 661 */
 662 output_def:
 663         music_output_def_body '}' {
 664                 $$ = $1;
 665                 THIS-> lexer_-> remove_scope ();
 666         }
 667         ;
 668
 669 music_output_def_body:
 670         MIDI '{'    {
 671                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultmidi"));
 672
 673
 674                 Midi_def* p =0;
 675                 if (id)
 676                         p = dynamic_cast<Midi_def*> (id->clone ());
 677                 else
 678                         p = new Midi_def;
 679
 680                 $$ = p;
 681                 THIS->lexer_->add_scope (p->scope_);
 682         }
 683         | PAPER '{'     {
 684                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 685                   Paper_def *p = 0;
 686                 if (id)
 687                         p = dynamic_cast<Paper_def*> (id->clone ());
 688                 else
 689                         p = new Paper_def;
 690
 691                 THIS->lexer_->add_scope (p->scope_);
 692                 $$ = p;
 693         }
 694         | PAPER '{' MUSIC_OUTPUT_DEF_IDENTIFIER         {
 695                 Music_output_def * o =  unsmob_music_output_def ($3);
 696                 $$ =o;
 697
 698                 THIS->lexer_->add_scope (o->scope_);
 699         }
 700         | MIDI '{' MUSIC_OUTPUT_DEF_IDENTIFIER  {
 701                 Music_output_def * o =  unsmob_music_output_def ($3);
 702                 $$ = o;
 703
 704                 THIS->lexer_->add_scope (o->scope_);
 705         }
 706         | music_output_def_body assignment  {
 707
 708         }
 709         | music_output_def_body translator_spec_block   {
 710                 $$->assign_translator ($2);
 711         }
 712         | music_output_def_body tempo_event  {
 713                 /*
 714                         junk this ? there already is tempo stuff in
 715                         music.
 716                 */
 717                 int m = gh_scm2int ( $2->get_mus_property ("metronome-count"));
 718                 Duration *d = unsmob_duration ($2->get_mus_property ("tempo-unit"));
 719                 Midi_def * md = dynamic_cast<Midi_def*> ($$);
 720                 if (md)
 721                         md->set_tempo (d->get_length (), m);
 722         }
 723         | music_output_def_body error {
 724
 725         }
 726         ;
 727
 728 tempo_event:
 729         TEMPO steno_duration '=' bare_unsigned  {
 730                 $$ = MY_MAKE_MUSIC("MetronomeChangeEvent");
 731                 $$->set_mus_property ("tempo-unit", $2);
 732                 $$->set_mus_property ("metronome-count", gh_int2scm ( $4));
 733         }
 734         ;
 735
 736 /*
 737 The representation of a  list is the
 738
 739   (LIST . LAST-CONS)
 740
 741  to have  efficient append.
 742 */
 743 Music_list:
 744         /* empty */ {
 745                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 746         }
 747         | Music_list Music {
 748                 SCM s = $$;
 749                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 750                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 751                 if (gh_pair_p (ly_cdr (s)))
 752                         gh_set_cdr_x (ly_cdr (s), c); /* append */
 753                 else
 754                         gh_set_car_x (s, c); /* set first cons */
 755                 gh_set_cdr_x (s, c) ;  /* remember last cell */
 756         }
 757         | Music_list error {
 758         }
 759         ;
 760
 761
 762 Music:
 763         Simple_music
 764         | Composite_music
 765         ;
 766
 767 Alternative_music:
 768         /* empty */ {
 769                 $$ = SCM_EOL;
 770         }
 771         | ALTERNATIVE '{' Music_list '}' {
 772                 $$ = $3;
 773         }
 774         ;
 775
 776 Repeated_music:
 777         REPEAT string bare_unsigned Music Alternative_music
 778         {
 779                 Music *beg = $4;
 780                 int times = $3;
 781                 SCM alts = gh_pair_p ($5) ? gh_car ($5) : SCM_EOL;
 782                 if (times < scm_ilength (alts)) {
 783                   unsmob_music (gh_car (alts))
 784                     ->origin ()->warning (
 785                     _("More alternatives than repeats.  Junking excess alternatives."));
 786                   alts = ly_truncate_list (times, alts);
 787                 }
 788
 789
 790                 static SCM proc;
 791                 if (!proc)
 792                         proc = scm_c_eval_string ("make-repeated-music");
 793
 794                 SCM mus = scm_call_1 (proc, $2);
 795                 scm_gc_protect_object (mus); // UGH.
 796                 Music *r =unsmob_music (mus);
 797                 if (beg)
 798                         {
 799                         r-> set_mus_property ("element", beg->self_scm ());
 800                         scm_gc_unprotect_object (beg->self_scm ());
 801                         }
 802                 r->set_mus_property ("repeat-count", gh_int2scm (times >? 1));
 803
 804                 r-> set_mus_property ("elements",alts);
 805                 if (gh_equal_p ($2, scm_makfrom0str ("tremolo"))) {
 806                         /*
 807                         we can not get durations and other stuff correct down the line, so we have to
 808                         add to the duration log here.
 809                         */
 810                         static SCM func;
 811
 812                         if (!func)
 813                                 func = scm_primitive_eval (ly_symbol2scm ("shift-duration-log"));
 814
 815                         int dots = ($3 % 3) ? 0 : 1;
 816                         int shift = -intlog2 ((dots) ? ($3*2/3) : $3);
 817
 818                         Sequential_music * seq = dynamic_cast<Sequential_music*> ($4);
 819
 820                         if (seq) {
 821                                 int list_len =scm_ilength (seq->music_list ());
 822                                 if (list_len != 2)
 823                                         seq->origin ()->warning ("Chord tremolo must have 2 elements.");
 824                                 shift -= 1;
 825                                 r->compress (Moment (Rational (1,list_len)));
 826                                 }
 827                         gh_call3 (func, r->self_scm (), gh_int2scm(shift),gh_int2scm(dots));
 828
 829                 }
 830                 r->set_spot (*$4->origin ());
 831
 832                 $$ = r;
 833         }
 834         ;
 835
 836 Sequential_music:
 837         SEQUENTIAL '{' Music_list '}'           {
 838                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 839                 $$->set_mus_property ("elements", ly_car ($3));
 840                 $$->set_spot(THIS->here_input());
 841         }
 842         | '{' Music_list '}'            {
 843                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 844                 $$->set_mus_property ("elements", ly_car ($2));
 845                 $$->set_spot(THIS->here_input());
 846         }
 847         ;
 848
 849 Simultaneous_music:
 850         SIMULTANEOUS '{' Music_list '}'{
 851                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 852                 $$->set_mus_property ("elements", ly_car ($3));
 853                 $$->set_spot(THIS->here_input());
 854
 855         }
 856         | '<' Music_list '>'    {
 857                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 858                 $$->set_mus_property ("elements", ly_car ($2));
 859                 $$->set_spot(THIS->here_input());
 860         }
 861         ;
 862
 863 Simple_music:
 864         event_chord             { $$ = $1; }
 865         | APPLYOUTPUT embedded_scm {
 866                 if (!ly_input_procedure_p ($2))
 867                         THIS->parser_error (_ ("\\applycontext takes function argument"));
 868                 $$ = MY_MAKE_MUSIC ("ApplyOutputEvent");
 869                 $$->set_mus_property ("procedure", $2);
 870                 $$->set_spot (THIS->here_input());
 871         }
 872         | APPLYCONTEXT embedded_scm {
 873                 if (!ly_input_procedure_p ($2))
 874                         THIS->parser_error (_ ("\\applycontext takes function argument"));
 875                 $$ = MY_MAKE_MUSIC ("ApplyContext");
 876                 $$->set_mus_property ("procedure", $2);
 877                 $$->set_spot (THIS->here_input());
 878         }
 879         | OUTPUTPROPERTY embedded_scm embedded_scm '=' embedded_scm     {
 880                 SCM pred = $2;
 881                 if (!gh_symbol_p ($3))
 882                 {
 883                         THIS->parser_error (_ ("Second argument must be a symbol"));
 884                 }
 885                 /* Should check # args */
 886                 if (!gh_procedure_p (pred))
 887                 {
 888                         THIS->parser_error (_ ("First argument must be a procedure taking one argument"));
 889                 }
 890
 891                 Music*m = MY_MAKE_MUSIC("OutputPropertySetMusic");
 892                 m->set_mus_property ("predicate", pred);
 893                 m->set_mus_property ("grob-property", $3);
 894                 m->set_mus_property ("grob-value",  $5);
 895
 896                 $$ = m;
 897         }
 898         | MUSIC_IDENTIFIER {
 899                 $$ = unsmob_music ($1);
 900         }
 901         | property_def
 902         | translator_change
 903         ;
 904
 905
 906 grace_head:
 907         GRACE  { $$ = scm_makfrom0str ("Grace"); }
 908         | ACCACCIATURA { $$ = scm_makfrom0str ("Accacciatura"); }
 909         | APPOGGIATURA { $$ = scm_makfrom0str ("Appoggiatura"); }
 910         ;
 911
 912
 913 Composite_music:
 914         CONTEXT STRING Music    {
 915                 Music*csm =MY_MAKE_MUSIC("ContextSpeccedMusic");
 916
 917                 csm->set_mus_property ("element", $3->self_scm ());
 918                 scm_gc_unprotect_object ($3->self_scm ());
 919
 920                 csm->set_mus_property ("context-type",$2);
 921                 csm->set_mus_property ("context-id", scm_makfrom0str (""));
 922
 923                 $$ = csm;
 924         }
 925         | AUTOCHANGE STRING Music       {
 926         Music*chm = MY_MAKE_MUSIC("AutoChangeMusic");
 927                 chm->set_mus_property ("element", $3->self_scm ());
 928                 chm->set_mus_property ("iterator-ctor", Auto_change_iterator::constructor_proc);
 929
 930                 scm_gc_unprotect_object ($3->self_scm ());
 931                 chm->set_mus_property ("what", $2);
 932
 933                 $$ = chm;
 934                 chm->set_spot (*$3->origin ());
 935         }
 936         | grace_head Music {
 937 #if 1
 938         /*
 939                 The other version is for easier debugging  of
 940                 Sequential_music_iterator in combination with grace notes.
 941         */
 942
 943 /*
 944
 945 TODO: should distinguish between both grace types in the
 946 basic music objects too, since the meaning is different.
 947
 948 */
 949
 950                 String start_str = "start" + ly_scm2string ($1) + "Music";
 951                 String stop_str = "stop" + ly_scm2string ($1) + "Music";
 952
 953                 SCM start = THIS->lexer_->lookup_identifier (start_str);
 954                 SCM stop = THIS->lexer_->lookup_identifier (stop_str);
 955
 956                 Music *startm = unsmob_music (start);
 957                 Music *stopm = unsmob_music (stop);
 958
 959                 SCM ms = SCM_EOL;
 960                 if (stopm) {
 961                         stopm = stopm->clone ();
 962                         ms = scm_cons (stopm->self_scm (), ms);
 963                         scm_gc_unprotect_object (stopm->self_scm ());
 964                 }
 965                 ms = scm_cons ($2->self_scm (), ms);
 966                 scm_gc_unprotect_object ($2->self_scm());
 967                 if (startm) {
 968                         startm = startm->clone ();
 969                         ms = scm_cons (startm->self_scm () , ms);
 970                         scm_gc_unprotect_object (startm->self_scm ());
 971                 }
 972
 973
 974                 Music* seq = MY_MAKE_MUSIC("SequentialMusic");
 975                 seq->set_mus_property ("elements", ms);
 976
 977
 978                 $$ = MY_MAKE_MUSIC("GraceMusic");
 979                 $$->set_mus_property ("element", seq->self_scm ());
 980                 scm_gc_unprotect_object (seq->self_scm ());
 981 #else
 982                 $$ = MY_MAKE_MUSIC("GraceMusic");
 983                 $$->set_mus_property ("element", $2->self_scm ());
 984                 scm_gc_unprotect_object ($2->self_scm ());
 985 #endif
 986         }
 987         | CONTEXT string '=' string Music {
 988                 Music * csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
 989
 990                 csm->set_mus_property ("element", $5->self_scm ());
 991                 scm_gc_unprotect_object ($5->self_scm ());
 992
 993                 csm->set_mus_property ("context-type", $2);
 994                 csm->set_mus_property ("context-id", $4);
 995
 996                 $$ = csm;
 997         }
 998         | NEWCONTEXT string Music {
 999                 static int new_context_count;
1000
1001                 Music * csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1002
1003                 csm->set_mus_property ("element", $3->self_scm ());
1004                 scm_gc_unprotect_object ($3->self_scm ());
1005
1006                 csm->set_mus_property ("context-type", $2);
1007
1008                 SCM new_id = scm_number_to_string (gh_int2scm (new_context_count ++),
1009                                         gh_int2scm (10));
1010                 csm->set_mus_property ("context-id", new_id);
1011                 $$ = csm;
1012         }
1013         | TIMES {
1014                 THIS->push_spot ();
1015         }
1016         /* CONTINUED */
1017                 fraction Music
1018
1019         {
1020                 int n = gh_scm2int (ly_car ($3)); int d = gh_scm2int (ly_cdr ($3));
1021                 Music *mp = $4;
1022         $$= MY_MAKE_MUSIC("TimeScaledMusic");
1023                 $$->set_spot (THIS->pop_spot ());
1024
1025
1026                 $$->set_mus_property ("element", mp->self_scm ());
1027                 scm_gc_unprotect_object (mp->self_scm ());
1028                 $$->set_mus_property ("numerator", gh_int2scm (n));
1029                 $$->set_mus_property ("denominator", gh_int2scm (d));
1030                 $$->compress (Moment (Rational (n,d)));
1031
1032         }
1033         | Repeated_music                { $$ = $1; }
1034         | Simultaneous_music            { $$ = $1; }
1035         | Sequential_music              { $$ = $1; }
1036         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
1037                 $$ = MY_MAKE_MUSIC("TransposedMusic");
1038                 Music *p = $4;
1039                 Pitch from = *unsmob_pitch ($2);
1040                 Pitch to = *unsmob_pitch ($3);
1041
1042                 p->transpose (interval (from, to));
1043                 $$->set_mus_property ("element", p->self_scm ());
1044                 scm_gc_unprotect_object (p->self_scm ());
1045         }
1046         | APPLY embedded_scm Music  {
1047                 if (!ly_input_procedure_p ($2))
1048                         THIS->parser_error (_ ("\\apply takes function argument"));
1049
1050                 SCM ret = gh_call1 ($2, $3->self_scm ());
1051                 Music *m = unsmob_music (ret);
1052                 if (!m) {
1053                         THIS->parser_error ("\\apply must return a Music");
1054                         m = MY_MAKE_MUSIC("Music");
1055                         }
1056                 $$ = m;
1057         }
1058         | NOTES
1059                 { THIS->lexer_->push_note_state (); }
1060         Music
1061                 { $$ = $3;
1062                   THIS->lexer_->pop_state ();
1063                 }
1064         | FIGURES
1065                 { THIS->lexer_->push_figuredbass_state (); }
1066         Music
1067                 {
1068                   Music * chm = MY_MAKE_MUSIC("UntransposableMusic");
1069                   chm->set_mus_property ("element", $3->self_scm ());
1070                   $$ = chm;
1071                   scm_gc_unprotect_object ($3->self_scm());
1072
1073                   THIS->lexer_->pop_state ();
1074         }
1075         | CHORDS
1076                 { THIS->lexer_->push_chord_state (); }
1077         Music
1078                 {
1079                   Music * chm = MY_MAKE_MUSIC("UnrelativableMusic");
1080                   chm->set_mus_property ("element", $3->self_scm ());
1081                   scm_gc_unprotect_object ($3->self_scm());
1082                   $$ = chm;
1083
1084                   THIS->lexer_->pop_state ();
1085         }
1086         | LYRICS
1087                 { THIS->lexer_->push_lyric_state (); }
1088         Music
1089                 {
1090                   $$ = $3;
1091                   THIS->lexer_->pop_state ();
1092         }
1093         | relative_music        { $$ = $1; }
1094         | re_rhythmed_music     { $$ = $1; }
1095         | part_combined_music   { $$ = $1; }
1096         ;
1097
1098 relative_music:
1099         RELATIVE absolute_pitch Music {
1100                 Music * p = $3;
1101                 Pitch pit = *unsmob_pitch ($2);
1102                 $$ = MY_MAKE_MUSIC("RelativeOctaveMusic");
1103
1104                 $$->set_mus_property ("element", p->self_scm ());
1105                 scm_gc_unprotect_object (p->self_scm ());
1106
1107
1108                 Pitch retpitch = p->to_relative_octave (pit);
1109                 if (lily_1_8_relative)
1110                         $$->set_mus_property ("last-pitch", retpitch.smobbed_copy ());
1111         }
1112         ;
1113
1114 re_rhythmed_music:
1115         ADDLYRICS Music Music {
1116         Music*l =MY_MAKE_MUSIC("LyricCombineMusic");
1117           l->set_mus_property ("elements", gh_list ($2->self_scm (), $3->self_scm (), SCM_UNDEFINED));
1118           scm_gc_unprotect_object ($3->self_scm ());
1119           scm_gc_unprotect_object ($2->self_scm ());
1120           $$ = l;
1121         }
1122         ;
1123
1124 part_combined_music:
1125         PARTCOMBINE STRING Music Music {
1126         Music * p= MY_MAKE_MUSIC("PartCombineMusic");
1127                 p->set_mus_property ("what", $2);
1128                 p->set_mus_property ("elements", gh_list ($3->self_scm (),$4->self_scm (), SCM_UNDEFINED));
1129
1130                 scm_gc_unprotect_object ($3->self_scm ());
1131                 scm_gc_unprotect_object ($4->self_scm ());
1132
1133                 $$ = p;
1134         }
1135         ;
1136
1137 translator_change:
1138         TRANSLATOR STRING '=' STRING  {
1139                 Music*t= MY_MAKE_MUSIC("TranslatorChange");
1140                 t-> set_mus_property ("change-to-type", $2);
1141                 t-> set_mus_property ("change-to-id", $4);
1142
1143                 $$ = t;
1144                 $$->set_spot (THIS->here_input ());
1145         }
1146         ;
1147
1148 property_def:
1149         simple_property_def
1150         | ONCE simple_property_def {
1151                 $$ = $2;
1152                 SCM e = $2->get_mus_property ("element");
1153                 unsmob_music (e)->set_mus_property ("once", SCM_BOOL_T);
1154         }
1155         ;
1156
1157 simple_property_def:
1158         PROPERTY STRING '.' STRING '='  scalar {
1159                 Music *t = set_property_music (scm_string_to_symbol ($4), $6);
1160                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1161
1162                 csm->set_mus_property ("element", t->self_scm ());
1163                 scm_gc_unprotect_object (t->self_scm ());
1164
1165                 $$ = csm;
1166                 $$->set_spot (THIS->here_input ());
1167
1168                 csm-> set_mus_property ("context-type", $2);
1169         }
1170         | PROPERTY STRING '.' STRING UNSET {
1171
1172                 Music *t = MY_MAKE_MUSIC("PropertyUnset");
1173                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1174
1175                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1176                 csm->set_mus_property ("element", t->self_scm ());
1177                 scm_gc_unprotect_object (t->self_scm ());
1178
1179                 $$ = csm;
1180                 $$->set_spot (THIS->here_input ());
1181
1182                 csm-> set_mus_property ("context-type", $2);
1183         }
1184         | PROPERTY STRING '.' STRING SET embedded_scm '=' embedded_scm {
1185                 bool autobeam
1186                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1187                 bool itc = internal_type_checking_global_b;
1188                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1189                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1190                 t->set_mus_property ("pop-first", SCM_BOOL_T);
1191                 if (autobeam)
1192                         internal_type_checking_global_b = false;
1193                 t->set_mus_property ("grob-property", $6);
1194                 if (autobeam)
1195                         internal_type_checking_global_b = itc;
1196                 t->set_mus_property ("grob-value", $8);
1197
1198                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1199                 csm->set_mus_property ("element", t->self_scm ());
1200                 scm_gc_unprotect_object (t->self_scm ());
1201                 $$ = csm;
1202                 $$->set_spot (THIS->here_input ());
1203
1204                 csm-> set_mus_property ("context-type", $2);
1205         }
1206         | PROPERTY STRING '.' STRING OVERRIDE
1207                 embedded_scm '=' embedded_scm
1208         {
1209                 /*
1210                         UGH UGH UGH UGH.
1211                 */
1212                 bool autobeam
1213                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1214                 bool itc = internal_type_checking_global_b;
1215
1216                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1217                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1218                 if (autobeam)
1219                         internal_type_checking_global_b = false;
1220                 t->set_mus_property ("grob-property", $6);
1221                 t->set_mus_property ("grob-value", $8);
1222                 if (autobeam)
1223                         internal_type_checking_global_b = itc;
1224
1225                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1226                 csm->set_mus_property ("element", t->self_scm ());
1227                 scm_gc_unprotect_object (t->self_scm ());
1228
1229                 $$ = csm;
1230                 $$->set_spot (THIS->here_input ());
1231
1232                 csm-> set_mus_property ("context-type", $2);
1233
1234         }
1235         | PROPERTY STRING '.' STRING REVERT embedded_scm {
1236                 Music *t = MY_MAKE_MUSIC("RevertProperty");
1237                 bool autobeam
1238                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1239                 bool itc = internal_type_checking_global_b;
1240
1241                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1242                 if (autobeam)
1243                         internal_type_checking_global_b = false;
1244                 t->set_mus_property ("grob-property", $6);
1245                 if (autobeam)
1246                         internal_type_checking_global_b = itc;
1247
1248                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1249                 csm->set_mus_property ("element", t->self_scm ());
1250                 scm_gc_unprotect_object (t->self_scm ());
1251
1252                 $$ = csm;
1253                 $$->set_spot (THIS->here_input ());
1254
1255                 csm-> set_mus_property ("context-type", $2);
1256         }
1257         ;
1258
1259
1260 scalar:
1261         string          { $$ = $1; }
1262         | bare_int      { $$ = gh_int2scm ($1); }
1263         | embedded_scm  { $$ = $1; }
1264         | full_markup {  $$ = $1; }
1265         | DIGIT { $$ = gh_int2scm ($1); }
1266         ;
1267
1268
1269
1270 /*
1271 This is a trick:
1272
1273 Adding pre_events to the simple_element
1274 makes the choice between
1275
1276   string:  STRING
1277
1278 and
1279
1280   simple_element: STRING
1281
1282 a single shift/reduction conflict.
1283
1284 nevertheless, this is not very clean, and we should find a different
1285 solution.
1286
1287 */
1288 pre_events: {
1289                 THIS->push_spot ();
1290         }
1291         ;
1292
1293 event_chord:
1294         pre_events simple_element post_events   {
1295                 SCM elts = $2-> get_mus_property ("elements");
1296
1297                 elts = gh_append2 (elts, scm_reverse_x ($3, SCM_EOL));
1298
1299                 $2->set_mus_property ("elements", elts);
1300                 $$ = $2;
1301         }
1302         | command_element
1303         | note_chord_element
1304         ;
1305
1306
1307 note_chord_element:
1308         chord_body optional_notemode_duration post_events
1309         {
1310                 SCM dur = unsmob_duration ($2)->smobbed_copy();
1311                 SCM es = $1->get_mus_property ("elements");
1312                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1313
1314                 for (SCM s = es; gh_pair_p (s); s = gh_cdr (s))
1315                   unsmob_music (gh_car(s))->set_mus_property ("duration", dur);
1316                 es = gh_append2 (es, postevs);
1317
1318                 $1-> set_mus_property ("elements", es);
1319                 $$ = $1;
1320         }
1321         ;
1322
1323 chord_body:
1324         CHORD_OPEN chord_body_elements CHORD_CLOSE
1325         {
1326                 $$ = MY_MAKE_MUSIC("EventChord");
1327                 $$->set_mus_property ("elements",
1328                         scm_reverse_x ($2, SCM_EOL));
1329         }
1330         ;
1331
1332 chord_body_elements:
1333         /* empty */             { $$ = SCM_EOL; }
1334         | chord_body_elements chord_body_element {
1335                 $$ = gh_cons ($2->self_scm(), $1);
1336                 scm_gc_unprotect_object ($2->self_scm());
1337         }
1338         ;
1339
1340 chord_body_element:
1341         pitch exclamations questions post_events
1342         {
1343                 Music * n = MY_MAKE_MUSIC("NoteEvent");
1344                 n->set_mus_property ("pitch", $1);
1345                 if ($3 % 2)
1346                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1347                 if ($2 % 2 || $3 % 2)
1348                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1349
1350                 SCM arts = scm_reverse_x ($4, SCM_EOL);
1351                 n->set_mus_property ("articulations", arts);
1352
1353                 $$ = n;
1354         }
1355         ;
1356
1357 command_element:
1358         command_req {
1359                 $$ = MY_MAKE_MUSIC("EventChord");
1360                 $$->set_mus_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1361                 scm_gc_unprotect_object ($1->self_scm());
1362
1363                 $$-> set_spot (THIS->here_input ());
1364                 $1-> set_spot (THIS->here_input ());
1365         }
1366         | OCTAVE { THIS->push_spot (); }
1367           pitch {
1368                 Music *l = MY_MAKE_MUSIC("RelativeOctaveCheck");
1369                 $$ = l;
1370                 $$->set_spot (THIS->pop_spot ());
1371                 $$->set_mus_property ("pitch", $3);
1372         }
1373         | E_LEFTSQUARE {
1374                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1375                 l->set_mus_property ("span-direction", gh_int2scm (START));
1376                 l->set_spot (THIS->here_input ());
1377
1378                 $$ = MY_MAKE_MUSIC("EventChord");
1379                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1380                 scm_gc_unprotect_object (l->self_scm());
1381                 $$->set_spot (THIS->here_input ());
1382         }
1383         | E_RIGHTSQUARE {
1384                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1385                 l->set_mus_property ("span-direction", gh_int2scm (STOP));
1386                 l->set_spot (THIS->here_input ());
1387
1388                 $$ = MY_MAKE_MUSIC("EventChord");
1389                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1390                 $$->set_spot (THIS->here_input ());
1391                 scm_gc_unprotect_object (l->self_scm());
1392         }
1393         | E_BACKSLASH {
1394                 $$ = MY_MAKE_MUSIC("VoiceSeparator");
1395                 $$->set_spot (THIS->here_input ());
1396         }
1397         | '|'      {
1398
1399                 $$ = MY_MAKE_MUSIC("BarCheck");
1400                 $$->set_spot (THIS->here_input ());
1401         }
1402         | BAR STRING                    {
1403                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1404
1405                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1406                 csm->set_mus_property ("element", t->self_scm ());
1407                 scm_gc_unprotect_object (t->self_scm ());
1408
1409                 $$ = csm;
1410                 $$->set_spot (THIS->here_input ());
1411
1412                 csm->set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1413         }
1414         | PARTIAL duration_length       {
1415                 Moment m = - unsmob_duration ($2)->get_length ();
1416                 Music * p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1417
1418                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1419                 sp->set_mus_property ("element", p->self_scm ());
1420                 scm_gc_unprotect_object (p->self_scm ());
1421
1422                 $$ =sp ;
1423                 sp-> set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1424         }
1425         | CLEF STRING  {
1426                 static SCM proc ;
1427                 if (!proc)
1428                         proc = scm_c_eval_string ("make-clef-set");
1429
1430                 SCM result = scm_call_1 (proc, $2);
1431                 scm_gc_protect_object (result);
1432                 $$ = unsmob_music (result);
1433         }
1434         | TIME_T fraction  {
1435                 static SCM proc;
1436                 if (!proc)
1437                         proc = scm_c_eval_string ("make-time-signature-set");
1438
1439                 SCM result = scm_apply_2   (proc, gh_car ($2), gh_cdr ($2), SCM_EOL);
1440                 scm_gc_protect_object (result);
1441                 $$ = unsmob_music (result);
1442         }
1443         ;
1444
1445 command_req:
1446         shorthand_command_req   { $$ = $1; }
1447         | verbose_command_req   { $$ = $1; }
1448         ;
1449
1450 shorthand_command_req:
1451         extender_req {
1452                 $$ = $1;
1453         }
1454         | hyphen_req {
1455                 $$ = $1;
1456         }
1457         | BREATHE {
1458                 $$ = MY_MAKE_MUSIC("BreathingSignEvent");
1459         }
1460         | E_TILDE {
1461                 $$ = MY_MAKE_MUSIC("PesOrFlexaEvent");
1462         }
1463         ;
1464
1465 verbose_command_req:
1466         MARK DEFAULT  {
1467                 Music * m = MY_MAKE_MUSIC("MarkEvent");
1468                 $$ = m;
1469         }
1470         | MARK scalar {
1471                 Music *m = MY_MAKE_MUSIC("MarkEvent");
1472                 m->set_mus_property ("label", $2);
1473                 $$ = m;
1474         }
1475         | SKIP duration_length {
1476                 Music * skip = MY_MAKE_MUSIC("SkipEvent");
1477                 skip->set_mus_property ("duration", $2);
1478
1479                 $$ = skip;
1480         }
1481         | tempo_event {
1482                 $$ = $1;
1483         }
1484         | KEY DEFAULT {
1485                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1486                 $$ = key;
1487         }
1488         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1489
1490                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1491                 if (scm_ilength ($3) > 0)
1492                 {
1493                         key->set_mus_property ("pitch-alist", $3);
1494                         key->set_mus_property ("tonic", Pitch (0,0,0).smobbed_copy());
1495                         ((Music*)key)->transpose (* unsmob_pitch ($2));
1496                 } else {
1497                         THIS->parser_error (_("Second argument must be pitch list."));
1498                 }
1499
1500                 $$ = key;
1501         }
1502         ;
1503
1504 post_events:
1505         /* empty */ {
1506                 $$ = SCM_EOL;
1507         }
1508         | post_events post_event {
1509                 $2->set_spot (THIS->here_input ());
1510                 $$ = gh_cons ($2->self_scm(), $$);
1511                 scm_gc_unprotect_object ($2->self_scm());
1512         }
1513         ;
1514
1515
1516
1517 post_event:
1518         direction_less_event {
1519                 $$ = $1;
1520         }
1521         | script_dir direction_reqd_event {
1522                 $2->set_mus_property ("direction", gh_int2scm ($1));
1523                 $$ = $2;
1524         }
1525         | script_dir direction_less_event {
1526                 $2->set_mus_property ("direction", gh_int2scm ($1));
1527                 $$ = $2;
1528         }
1529         | string_number_event
1530         ;
1531
1532 string_number_event:
1533         E_UNSIGNED {
1534                 Music * s = MY_MAKE_MUSIC("StringNumberEvent");
1535                 s->set_mus_property ("string-number",  gh_int2scm($1));
1536                 s->set_spot (THIS->here_input ());
1537                 $$ = s;
1538         }
1539         ;
1540
1541
1542 direction_less_event:
1543         '['  {
1544
1545
1546 /*
1547
1548 TODO: should take all these defs out of the parser, adn make use
1549 configurable, i.e.
1550
1551
1552 (set-articulation '~ "trill")
1553
1554 */
1555                 Music * m = MY_MAKE_MUSIC ("BeamEvent");
1556                 m->set_spot (THIS->here_input());
1557                 m->set_mus_property ("span-direction" , gh_int2scm (START));
1558                 $$ = m;
1559         }
1560         | ']'  {
1561                 Music * m = MY_MAKE_MUSIC ("BeamEvent");
1562                 m->set_spot (THIS->here_input());
1563                 m->set_mus_property ("span-direction" , gh_int2scm (STOP));
1564                 $$ = m;
1565         }
1566         | '~' {
1567                 Music * m = MY_MAKE_MUSIC ("TieEvent");
1568                 m->set_spot (THIS->here_input());
1569                 $$ = m;
1570         }
1571         | close_event {
1572                 $$ = $1;
1573                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (START));
1574         }
1575         | open_event {
1576                 $$ = $1;
1577                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (STOP))
1578         }
1579         | EVENT_IDENTIFIER      {
1580                 $$ = unsmob_music ($1);
1581         }
1582         | tremolo_type  {
1583                Music * a = MY_MAKE_MUSIC("TremoloEvent");
1584                a->set_spot (THIS->here_input ());
1585                a->set_mus_property ("tremolo-type", gh_int2scm ($1));
1586                $$ = a;
1587         }
1588         ;
1589
1590 direction_reqd_event:
1591         gen_text_def {
1592                 $$ = $1;
1593         }
1594         | script_abbreviation {
1595                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1596                 Music *a = MY_MAKE_MUSIC("ArticulationEvent");
1597                 if (gh_string_p (s))
1598                         a->set_mus_property ("articulation-type", s);
1599                 else THIS->parser_error (_ ("Expecting string as script definition"));
1600                 $$ = a;
1601         }
1602         ;
1603
1604 sup_quotes:
1605         '\'' {
1606                 $$ = 1;
1607         }
1608         | sup_quotes '\'' {
1609                 $$ ++;
1610         }
1611         ;
1612
1613 sub_quotes:
1614         ',' {
1615                 $$ = 1;
1616         }
1617         | sub_quotes ',' {
1618                 $$ ++ ;
1619         }
1620         ;
1621
1622 steno_pitch:
1623         NOTENAME_PITCH  {
1624                 $$ = $1;
1625         }
1626         | NOTENAME_PITCH sup_quotes     {
1627                 Pitch p = *unsmob_pitch ($1);
1628                 p = p.transposed (Pitch ($2,0,0));
1629                 $$ = p.smobbed_copy ();
1630         }
1631         | NOTENAME_PITCH sub_quotes      {
1632                 Pitch p =* unsmob_pitch ($1);
1633                 p = p.transposed (Pitch (-$2,0,0));
1634                 $$ = p.smobbed_copy ();
1635         }
1636         ;
1637
1638 /*
1639 ugh. duplication
1640 */
1641
1642 steno_tonic_pitch:
1643         TONICNAME_PITCH {
1644                 $$ = $1;
1645         }
1646         | TONICNAME_PITCH sup_quotes    {
1647                 Pitch p = *unsmob_pitch ($1);
1648                 p = p.transposed (Pitch ($2,0,0));
1649                 $$ = p.smobbed_copy ();
1650         }
1651         | TONICNAME_PITCH sub_quotes     {
1652                 Pitch p =* unsmob_pitch ($1);
1653
1654                 p = p.transposed (Pitch (-$2,0,0));
1655                 $$ = p.smobbed_copy ();
1656         }
1657         ;
1658
1659 pitch:
1660         steno_pitch {
1661                 $$ = $1;
1662         }
1663         | explicit_pitch {
1664                 $$ = $1;
1665         }
1666         ;
1667
1668 pitch_also_in_chords:
1669         pitch
1670         | steno_tonic_pitch
1671         ;
1672
1673 explicit_pitch:
1674         PITCH embedded_scm {
1675                 $$ = $2;
1676                 if (!unsmob_pitch ($2)) {
1677                         THIS->parser_error (_f ("Expecting musical-pitch value", 3));
1678                          $$ = Pitch ().smobbed_copy ();
1679                 }
1680         }
1681         ;
1682
1683 verbose_duration:
1684         DURATION embedded_scm   {
1685                 $$ = $2;
1686                 if (!unsmob_duration ($2))
1687                 {
1688                         THIS->parser_error (_ ("Must have duration object"));
1689                         $$ = Duration ().smobbed_copy ();
1690                 }
1691         }
1692         ;
1693
1694 extender_req:
1695         EXTENDER {
1696                 if (!THIS->lexer_->lyric_state_b ())
1697                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1698                 $$ = MY_MAKE_MUSIC("ExtenderEvent");
1699         }
1700         ;
1701
1702 hyphen_req:
1703         HYPHEN {
1704                 if (!THIS->lexer_->lyric_state_b ())
1705                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1706                 $$ = MY_MAKE_MUSIC("HyphenEvent");
1707         }
1708         ;
1709
1710 close_event:
1711         '('     {
1712                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1713                 $$ = s;
1714                 s->set_spot (THIS->here_input());
1715         }
1716         | E_OPEN        {
1717                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1718                 $$ = s;
1719                 s->set_spot (THIS->here_input());
1720         }
1721         | E_SMALLER {
1722                 Music *s =MY_MAKE_MUSIC("CrescendoEvent");
1723                 $$ = s;
1724                 s->set_spot (THIS->here_input());
1725         }
1726         | E_BIGGER {
1727                 Music *s =MY_MAKE_MUSIC("DecrescendoEvent");
1728                 $$ = s;
1729                 s->set_spot (THIS->here_input());
1730         }
1731         ;
1732
1733
1734 open_event:
1735         E_EXCLAMATION   {
1736                 Music *s =  MY_MAKE_MUSIC("CrescendoEvent");
1737                 s->set_spot (THIS->here_input());
1738
1739                 $$ = s;
1740         }
1741         | ')'   {
1742                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1743                 $$ = s;
1744                 s->set_spot (THIS->here_input());
1745
1746         }
1747         | E_CLOSE       {
1748                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1749                 $$ = s;
1750                 s->set_mus_property ("span-type", scm_makfrom0str ( "phrasing-slur"));
1751                 s->set_spot (THIS->here_input());
1752         }
1753         ;
1754
1755 gen_text_def:
1756         full_markup {
1757                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1758                 t->set_mus_property ("text", $1);
1759                 t->set_spot (THIS->here_input ());
1760                 $$ = t;
1761         }
1762         | string {
1763                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1764                 t->set_mus_property ("text", make_simple_markup ($1));
1765                 t->set_spot (THIS->here_input ());
1766                 $$ = t;
1767
1768         }
1769         | DIGIT {
1770                 Music * t = MY_MAKE_MUSIC("FingerEvent");
1771                 t->set_mus_property ("digit",  gh_int2scm ($1));
1772                 t->set_spot (THIS->here_input ());
1773                 $$ = t;
1774         }
1775         ;
1776
1777 script_abbreviation:
1778         '^'             {
1779                 $$ = scm_makfrom0str ("Hat");
1780         }
1781         | '+'           {
1782                 $$ = scm_makfrom0str ("Plus");
1783         }
1784         | '-'           {
1785                 $$ = scm_makfrom0str ("Dash");
1786         }
1787         | '|'           {
1788                 $$ = scm_makfrom0str ("Bar");
1789         }
1790         | '>'           {
1791                 $$ = scm_makfrom0str ("Larger");
1792         }
1793         | '.'           {
1794                 $$ = scm_makfrom0str ("Dot");
1795         }
1796         | '_' {
1797                 $$ = scm_makfrom0str ("Underscore");
1798         }
1799         ;
1800
1801 script_dir:
1802         '_'     { $$ = DOWN; }
1803         | '^'   { $$ = UP; }
1804         | '-'   { $$ = CENTER; }
1805         ;
1806
1807
1808 absolute_pitch:
1809         steno_pitch     {
1810                 $$ = $1;
1811         }
1812         ;
1813
1814 duration_length:
1815         multiplied_duration {
1816                 $$ = $1;
1817         }
1818         | verbose_duration {
1819                 $$ = $1;
1820         }
1821         ;
1822
1823 optional_notemode_duration:
1824         {
1825                 Duration dd = THIS->default_duration_;
1826                 $$ = dd.smobbed_copy ();
1827
1828                 THIS->beam_check ($$);
1829         }
1830         | multiplied_duration   {
1831                 $$ = $1;
1832                 THIS->default_duration_ = *unsmob_duration ($$);
1833
1834                 THIS->beam_check ($$);
1835         }
1836         | verbose_duration {
1837                 $$ = $1;
1838                 THIS->default_duration_ = *unsmob_duration ($$);
1839         }
1840         ;
1841
1842 steno_duration:
1843         bare_unsigned dots              {
1844                 int l = 0;
1845                 if (!is_duration_b ($1))
1846                         THIS->parser_error (_f ("not a duration: %d", $1));
1847                 else
1848                         l =  intlog2 ($1);
1849
1850                 $$ = Duration (l, $2).smobbed_copy ();
1851         }
1852         | DURATION_IDENTIFIER dots      {
1853                 Duration *d =unsmob_duration ($1);
1854                 Duration k (d->duration_log (),d->dot_count () + $2);
1855
1856                 *d = k;
1857                 $$ = $1;
1858         }
1859         ;
1860
1861
1862
1863
1864 multiplied_duration:
1865         steno_duration {
1866                 $$ = $1;
1867         }
1868         | multiplied_duration '*' bare_unsigned {
1869                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1870         }
1871         | multiplied_duration '*' FRACTION {
1872                 Rational  m (gh_scm2int (ly_car ($3)), gh_scm2int (ly_cdr ($3)));
1873
1874                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1875         }
1876         ;
1877
1878 fraction:
1879         FRACTION { $$ = $1; }
1880         | UNSIGNED '/' UNSIGNED {
1881                 $$ = scm_cons (gh_int2scm ($1), gh_int2scm ($3));
1882         }
1883         ;
1884
1885 dots:
1886         /* empty */     {
1887                 $$ = 0;
1888         }
1889         | dots '.' {
1890                 $$ ++;
1891         }
1892         ;
1893
1894
1895 tremolo_type:
1896         ':'     {
1897                 $$ =0;
1898         }
1899         | ':' bare_unsigned {
1900                 if (!is_duration_b ($2))
1901                         THIS->parser_error (_f ("not a duration: %d", $2));
1902                 $$ = $2;
1903         }
1904         ;
1905
1906
1907
1908 /*****************************************************************
1909                 BASS FIGURES
1910 *****************************************************************/
1911 bass_number:
1912         DIGIT   {
1913                 $$ = scm_number_to_string (gh_int2scm ($1), gh_int2scm (10));
1914         }
1915         | UNSIGNED {
1916                 $$ = scm_number_to_string (gh_int2scm ($1), gh_int2scm (10));
1917         }
1918         | STRING { $$ =  $1 }
1919         ;
1920
1921 bass_mod:
1922         '-'     { $$ = -1; }
1923         | '+'   { $$ = 1; }
1924         | '!'   { $$ = 0; }
1925         ;
1926
1927 bass_figure:
1928         FIGURE_SPACE {
1929                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1930                 $$ = bfr->self_scm();
1931                 scm_gc_unprotect_object ($$);
1932         }
1933         | bass_number  {
1934                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1935                 $$ = bfr->self_scm();
1936
1937                 bfr->set_mus_property ("figure", $1);
1938
1939                 scm_gc_unprotect_object ($$);
1940         }
1941         | bass_figure bass_mod {
1942                 Music *m = unsmob_music ($1);
1943                 if ($2) {
1944                         SCM salter =m->get_mus_property ("alteration");
1945                         int alter = gh_number_p ( salter) ? gh_scm2int (salter) : 0;
1946                         m->set_mus_property ("alteration",
1947                                 gh_int2scm (alter + $2));
1948                 } else {
1949                         m->set_mus_property ("alteration", gh_int2scm (0));
1950                 }
1951         }
1952         ;
1953
1954 br_bass_figure:
1955         '[' bass_figure {
1956                 $$ = $2;
1957                 unsmob_music ($$)->set_mus_property ("bracket-start", SCM_BOOL_T);
1958         }
1959         | bass_figure   {
1960                 $$ = $1;
1961         }
1962         | br_bass_figure ']' {
1963                 $$ = $1;
1964                 unsmob_music ($1)->set_mus_property ("bracket-stop", SCM_BOOL_T);
1965         }
1966         ;
1967
1968 figure_list:
1969         /**/            {
1970                 $$ = SCM_EOL;
1971         }
1972         | figure_list br_bass_figure {
1973                 $$ = scm_cons ($2, $1);
1974         }
1975         ;
1976
1977 figure_spec:
1978         FIGURE_OPEN figure_list FIGURE_CLOSE {
1979                 Music * m = MY_MAKE_MUSIC("EventChord");
1980                 $2 = scm_reverse_x ($2, SCM_EOL);
1981                 m->set_mus_property ("elements",  $2);
1982                 $$ = m->self_scm ();
1983         }
1984         ;
1985
1986
1987 optional_rest:
1988         /**/   { $$ = 0; }
1989         | REST { $$ = 1; }
1990         ;
1991
1992 simple_element:
1993         pitch exclamations questions optional_notemode_duration optional_rest {
1994
1995                 Input i = THIS->pop_spot ();
1996                 if (!THIS->lexer_->note_state_b ())
1997                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
1998
1999                 Music *n = 0;
2000                 if ($5)
2001                         n =  MY_MAKE_MUSIC("RestEvent");
2002                 else
2003                         n =  MY_MAKE_MUSIC("NoteEvent");
2004
2005                 n->set_mus_property ("pitch", $1);
2006                 n->set_mus_property ("duration", $4);
2007
2008
2009                 if ($3 % 2)
2010                         n->set_mus_property ("cautionary", SCM_BOOL_T);
2011                 if ($2 % 2 || $3 % 2)
2012                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
2013
2014                 Music *v = MY_MAKE_MUSIC("EventChord");
2015                 v->set_mus_property ("elements", scm_list_n (n->self_scm (), SCM_UNDEFINED));
2016                 scm_gc_unprotect_object (n->self_scm());
2017
2018                 v->set_spot (i);
2019                 n->set_spot (i);
2020                 $$ = v;
2021         }
2022         | figure_spec optional_notemode_duration {
2023                 Music * m = unsmob_music ($1);
2024                 Input i = THIS->pop_spot ();
2025                 m->set_spot (i);
2026                 for (SCM s = m->get_mus_property ("elements"); gh_pair_p (s); s = ly_cdr (s))
2027                 {
2028                         unsmob_music (ly_car (s))->set_mus_property ("duration", $2);
2029                 }
2030                 $$ = m;
2031         }
2032         | RESTNAME optional_notemode_duration           {
2033
2034                 Input i = THIS->pop_spot ();
2035                 Music * ev = 0;
2036                 if (ly_scm2string ($1) =="s") {
2037                         /* Space */
2038                         ev = MY_MAKE_MUSIC("SkipEvent");
2039                   }
2040                 else {
2041                         ev = MY_MAKE_MUSIC("RestEvent");
2042
2043                     }
2044                 ev->set_mus_property ("duration" ,$2);
2045                 ev->set_spot (i);
2046                 Music * velt = MY_MAKE_MUSIC("EventChord");
2047                 velt->set_mus_property ("elements", scm_list_n (ev->self_scm (),SCM_UNDEFINED));
2048                 velt->set_spot (i);
2049
2050                 $$ = velt;
2051         }
2052         | MULTI_MEASURE_REST optional_notemode_duration         {
2053                 THIS->pop_spot ();
2054
2055                 static SCM proc ;
2056                 if (!proc)
2057                         proc = scm_c_eval_string ("make-multi-measure-rest");
2058
2059                 SCM mus = scm_call_2 (proc, $2,
2060                         make_input (THIS->here_input()));
2061                 scm_gc_protect_object (mus);
2062                 $$ = unsmob_music (mus);
2063         }
2064
2065         | lyric_element optional_notemode_duration      {
2066                 Input i = THIS->pop_spot ();
2067                 if (!THIS->lexer_->lyric_state_b ())
2068                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
2069
2070                 Music * lreq = MY_MAKE_MUSIC("LyricEvent");
2071                 lreq->set_mus_property ("text", $1);
2072                 lreq->set_mus_property ("duration",$2);
2073                 lreq->set_spot (i);
2074                 Music * velt = MY_MAKE_MUSIC("EventChord");
2075                 velt->set_mus_property ("elements", scm_list_n (lreq->self_scm (), SCM_UNDEFINED));
2076
2077                 $$= velt;
2078         }
2079         | new_chord {
2080                 THIS->pop_spot ();
2081
2082                 if (!THIS->lexer_->chord_state_b ())
2083                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
2084                 $$ = unsmob_music ($1);
2085         }
2086         ;
2087
2088 lyric_element:
2089         full_markup { $$ = $1 }
2090         | STRING {  $$ = $1 ; }
2091         ;
2092
2093 new_chord:
2094         steno_tonic_pitch optional_notemode_duration   {
2095                 $$ = make_chord ($1, $2, SCM_EOL);
2096         }
2097         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2098                 SCM its = scm_reverse_x ($4, SCM_EOL);
2099                 $$ = make_chord ($1, $2, gh_cons ($3, its));
2100         }
2101         ;
2102
2103 chord_items:
2104         /**/ {
2105                 $$ = SCM_EOL;
2106         }
2107         | chord_items chord_item {
2108                 $$ = gh_cons ($2, $$);
2109         }
2110         ;
2111
2112 chord_separator:
2113         CHORD_COLON {
2114                 $$ = ly_symbol2scm ("chord-colon");
2115         }
2116         | CHORD_CARET {
2117                 $$ = ly_symbol2scm ("chord-caret");
2118         }
2119         | CHORD_SLASH steno_tonic_pitch {
2120                 $$ = scm_list_n (ly_symbol2scm ("chord-slash"), $2, SCM_UNDEFINED);
2121         }
2122         | CHORD_BASS steno_tonic_pitch {
2123                 $$ = scm_list_n (ly_symbol2scm ("chord-bass"), $2, SCM_UNDEFINED);
2124         }
2125         ;
2126
2127 chord_item:
2128         chord_separator {
2129                 $$ = $1;
2130         }
2131         | step_numbers {
2132                 $$ = scm_reverse_x ($1, SCM_EOL);
2133         }
2134         | CHORD_MODIFIER  {
2135                 $$ = $1;
2136         }
2137         ;
2138
2139 step_numbers:
2140         step_number { $$ = gh_cons ($1, SCM_EOL); }
2141         | step_numbers '.' step_number {
2142                 $$ = gh_cons ($3, $$);
2143         }
2144         ;
2145
2146 step_number:
2147         bare_unsigned {
2148                 $$ = make_chord_step ($1, 0);
2149         }
2150         | bare_unsigned '+' {
2151                 $$ = make_chord_step ($1, 1);
2152         }
2153         | bare_unsigned CHORD_MINUS {
2154                 $$ = make_chord_step ($1,-1);
2155         }
2156         ;
2157
2158 /*
2159         UTILITIES
2160
2161 TODO: should deprecate in favor of Scheme?
2162
2163  */
2164 number_expression:
2165         number_expression '+' number_term {
2166                 $$ = scm_sum ($1, $3);
2167         }
2168         | number_expression '-' number_term {
2169                 $$ = scm_difference ($1, $3);
2170         }
2171         | number_term
2172         ;
2173
2174 number_term:
2175         number_factor {
2176                 $$ = $1;
2177         }
2178         | number_factor '*' number_factor {
2179                 $$ = scm_product ($1, $3);
2180         }
2181         | number_factor '/' number_factor {
2182                 $$ = scm_divide ($1, $3);
2183         }
2184         ;
2185
2186 number_factor:
2187         '-'  number_factor { /* %prec UNARY_MINUS */
2188                 $$ = scm_difference ($2, SCM_UNDEFINED);
2189         }
2190         | bare_number
2191         ;
2192
2193
2194 bare_number:
2195         UNSIGNED        {
2196                 $$ = gh_int2scm ($1);
2197         }
2198         | REAL          {
2199                 $$ = $1;
2200         }
2201         | NUMBER_IDENTIFIER             {
2202                 $$ = $1;
2203         }
2204         | REAL NUMBER_IDENTIFIER        {
2205                 $$ = gh_double2scm (gh_scm2double ($1) * gh_scm2double ($2));
2206         }
2207         | UNSIGNED NUMBER_IDENTIFIER    {
2208                 $$ = gh_double2scm ($1 * gh_scm2double ($2));
2209         }
2210         ;
2211
2212
2213 bare_unsigned:
2214         UNSIGNED {
2215                         $$ = $1;
2216         }
2217         | DIGIT {
2218                 $$ = $1;
2219         }
2220         ;
2221
2222 bare_int:
2223         bare_number {
2224                 if (scm_integer_p ($1) == SCM_BOOL_T)
2225                 {
2226                         int k = gh_scm2int ($1);
2227                         $$ = k;
2228                 } else
2229                 {
2230                         THIS->parser_error (_ ("need integer number arg"));
2231                         $$ = 0;
2232                 }
2233         }
2234         | '-' bare_int {
2235                 $$ = -$2;
2236         }
2237         ;
2238
2239
2240 string:
2241         STRING          {
2242                 $$ = $1;
2243         }
2244         | STRING_IDENTIFIER     {
2245                 $$ = $1;
2246         }
2247         | string '+' string {
2248                 $$ = scm_string_append (scm_list_n ($1, $3, SCM_UNDEFINED));
2249         }
2250         ;
2251
2252
2253 exclamations:
2254                 { $$ = 0; }
2255         | exclamations '!'      { $$ ++; }
2256         ;
2257
2258 questions:
2259                 { $$ = 0; }
2260         | questions '?' { $$ ++; }
2261         ;
2262
2263
2264
2265 full_markup:
2266         MARKUP_IDENTIFIER {
2267                 $$ = $1;
2268         }
2269         | MARKUP
2270                 { THIS->lexer_->push_markup_state (); }
2271         markup
2272                 { $$ = $3;
2273                   THIS->lexer_->pop_state ();
2274                 }
2275         ;
2276
2277
2278 /*
2279 This should be done more dynamically if possible.
2280 */
2281 markup:
2282         STRING {
2283                 $$ = make_simple_markup ($1);
2284         }
2285         | MARKUP_HEAD_MARKUP0 markup {
2286                 $$ = scm_list_n ($1, $2, SCM_UNDEFINED);
2287         }
2288         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2289                 $$ = scm_list_n ($1, $2, $3, SCM_UNDEFINED);
2290         }
2291         | MARKUP_HEAD_SCM0_MARKUP1 SCM_T markup {
2292                 $$  = scm_list_n ($1, $2, $3, SCM_UNDEFINED);
2293         }
2294         | markup_line {
2295                 $$ = $1;
2296         }
2297         | MARKUP_HEAD_LIST0 markup_list {
2298                 $$ = scm_list_n ($1,$2, SCM_UNDEFINED);
2299         }
2300         | MARKUP_HEAD_SCM0 embedded_scm {
2301                 $$ = scm_list_n ($1, $2, SCM_UNDEFINED);
2302         }
2303         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm markup {
2304                 $$ = scm_list_n ($1, $2, $3, $4, SCM_UNDEFINED);
2305         }
2306         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2307                 $$ = scm_list_n ($1, $2, $3, $4, SCM_UNDEFINED);
2308         }
2309         | MARKUP_IDENTIFIER {
2310                 $$ = $1;
2311         }
2312
2313         ;
2314
2315 markup_list:
2316         CHORD_OPEN markup_list_body CHORD_CLOSE { $$ = scm_reverse_x ($2, SCM_EOL); }
2317         ;
2318
2319 markup_line:
2320         '{' markup_list_body '}' {
2321                 static SCM line ;
2322                 if (!line)
2323                         line = scm_c_eval_string ("line-markup");
2324
2325                 $$ = scm_list_n (line, scm_reverse_x ($2, SCM_EOL), SCM_UNDEFINED);
2326         }
2327         ;
2328
2329 markup_list_body:
2330         /**/ {  $$ = SCM_EOL; }
2331         | markup_list_body markup {
2332                 $$ = gh_cons ($2, $1) ;
2333         }
2334         ;
2335
2336
2337 %%
2338
2339 void
2340 My_lily_parser::set_yydebug (bool )
2341 {
2342 #if 0
2343         yydebug = 1;
2344 #endif
2345 }
2346
2347 extern My_lily_parser * current_parser;
2348
2349 void
2350 My_lily_parser::do_yyparse ()
2351 {
2352         current_parser = this;;
2353         yyparse ((void*)this);
2354 }
2355
2356
2357 /*
2358 Should make this optional?    It will also complain when you do
2359
2360         [s4]
2361
2362 which is entirely legitimate.
2363
2364 Or we can scrap it. Barchecks should detect wrong durations, and
2365 skipTypesetting speeds it up a lot.
2366 */
2367
2368 void
2369 My_lily_parser::beam_check (SCM dur)
2370 {
2371   Duration *d = unsmob_duration (dur);
2372   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2373     {
2374       Music * m = unsmob_music (last_beam_start_);
2375       m->origin ()->warning (_("Suspect duration found following this beam"));
2376     }
2377   last_beam_start_ = SCM_EOL;
2378 }
2379
2380
2381
2382
2383 /*
2384
2385 It is a little strange to have this function in this file, but
2386 otherwise, we have to import music classes into the lexer.
2387
2388 */
2389 int
2390 My_lily_lexer::try_special_identifiers (SCM * destination, SCM sid)
2391 {
2392         if (gh_string_p (sid)) {
2393                 *destination = sid;
2394                 return STRING_IDENTIFIER;
2395         } else if (gh_number_p (sid)) {
2396                 *destination = sid;
2397                 return NUMBER_IDENTIFIER;
2398         } else if (unsmob_translator_def (sid)) {
2399                 *destination = unsmob_translator_def (sid)->clone_scm();
2400                 return TRANSLATOR_IDENTIFIER;
2401         } else if (unsmob_score (sid)) {
2402                 Score *sc =  new Score (*unsmob_score (sid));
2403                 *destination =sc->self_scm ();
2404                 return SCORE_IDENTIFIER;
2405         } else if (Music * mus =unsmob_music (sid)) {
2406                 *destination = unsmob_music (sid)->clone ()->self_scm();
2407                 unsmob_music (*destination)->
2408                         set_mus_property ("origin", make_input (last_input_));
2409                 return dynamic_cast<Event*> (mus)
2410                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2411         } else if (unsmob_duration (sid)) {
2412                 *destination = unsmob_duration (sid)->smobbed_copy();
2413                 return DURATION_IDENTIFIER;
2414         } else if (unsmob_music_output_def (sid)) {
2415                 Music_output_def *p = unsmob_music_output_def (sid);
2416                 p = p->clone ();
2417
2418                 *destination = p->self_scm();
2419                 return MUSIC_OUTPUT_DEF_IDENTIFIER;
2420         } else if (Text_item::markup_p (sid)) {
2421                 *destination = sid;
2422                 return MARKUP_IDENTIFIER;
2423         }
2424
2425         return -1;
2426 }