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--2002 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9            Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13   Two shift/reduce problems:
  14     - empty music-list
  15     - empty pre-events
  16
  17
  18
  19 (bullshit.
  20
  21 s/r:
  22
  23 1.      foo = bar.
  24
  25         "bar" -> String -> Lyric -> Music
  26
  27         "bar" -> String
  28
  29
  30 2.  \repeat
  31         \repeat .. \alternative
  32
  33
  34     \repeat { \repeat .. \alternative }
  35
  36 or
  37
  38     \repeat { \repeat } \alternative
  39
  40 )
  41
  42 --hwn
  43
  44  */
  45
  46 /*
  47
  48 TODO:
  49
  50 * The rules for who is protecting what are very shady. Uniformise
  51   this.
  52
  53 * There are too many lexical modes.
  54
  55
  56 */
  57
  58 #include <ctype.h>
  59
  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 "chord.hh"
  78 #include "ly-modules.hh"
  79 #include "music-sequence.hh"
  80 #include "input-smob.hh"
  81 #include "event.hh"
  82
  83 bool
  84 regular_identifier_b (SCM id)
  85 {
  86   String str = ly_scm2string (id);
  87   char const *s = str.to_str0 () ;
  88
  89   bool v = true;
  90   while (*s && v)
  91    {
  92         v = v && isalpha (*s);
  93         s++;
  94    }
  95   return v;
  96 }
  97
  98
  99
 100 bool
 101 is_duration_b (int t)
 102 {
 103   return t && t == 1 << intlog2 (t);
 104 }
 105
 106 void
 107 set_music_properties (Music *p, SCM a)
 108 {
 109   for (SCM k = a; gh_pair_p (k); k = ly_cdr (k))
 110         {
 111         p->internal_set_mus_property (ly_caar (k), ly_cdar (k));
 112         }
 113 }
 114
 115
 116
 117 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
 118
 119 Music*
 120 set_property_music (SCM sym, SCM value)
 121 {
 122         Music * p = MY_MAKE_MUSIC("PropertySet");
 123         p->set_mus_property ("symbol", sym);
 124         p->set_mus_property ("value", value);
 125         return p;
 126 }
 127
 128
 129 // needed for bison.simple's malloc () and free ()
 130
 131 // #include <malloc.h>
 132 #include <stdlib.h>
 133
 134
 135
 136 #define YYERROR_VERBOSE 1
 137
 138 My_lily_parser* my_lily_parser;
 139 #define YYPARSE_PARAM my_lily_parser
 140 #define YYLEX_PARAM my_lily_parser
 141 #define THIS\
 142         ((My_lily_parser *) my_lily_parser)
 143
 144 #define yyerror THIS->parser_error
 145
 146 %}
 147
 148 /* We use SCMs to do strings, because it saves us the trouble of
 149 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 150 of the parse stack onto the heap. */
 151
 152
 153 %union {
 154         String * string;
 155     Music *music;
 156     Score *score;
 157     Music_output_def * outputdef;
 158     SCM scm;
 159     int i;
 160 }
 161 %{
 162
 163 int
 164 yylex (YYSTYPE *s,  void * v)
 165 {
 166         My_lily_parser   *pars = (My_lily_parser*) v;
 167         My_lily_lexer * lex = pars->lexer_;
 168
 169         lex->lexval = (void*) s;
 170         lex->prepare_for_next_token();
 171         return lex->yylex ();
 172 }
 173
 174
 175 %}
 176
 177 %pure_parser
 178
 179 /* tokens which are not keywords */
 180 %token AUTOCHANGE
 181 %token ALIAS
 182 %token APPLY
 183 %token ACCEPTS
 184 %token ALTERNATIVE
 185 %token BAR
 186 %token BREATHE
 187 %token CHORDMODIFIERS
 188 %token CHORDS
 189 %token CLEF
 190 %token CONSISTS
 191 %token DURATION
 192 %token SEQUENTIAL
 193 %token GROBDESCRIPTIONS
 194 %token SIMULTANEOUS
 195 %token CONSISTSEND
 196 %token DENIES
 197 %token EXTENDER
 198 %token FIGURES FIGURE_OPEN FIGURE_CLOSE
 199 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 200 %token GRACE
 201 %token HEADER
 202 %token HYPHEN
 203 %token INVALID
 204 %token KEY
 205 %token LYRICS
 206 %token MARK
 207 %token MULTI_MEASURE_REST
 208 %token MIDI
 209 %token PITCH
 210 %token DEFAULT
 211 %token NAME
 212 %token PITCHNAMES
 213 %token NOTES
 214 %token ONCE
 215 %token PAPER
 216 %token PARTIAL
 217 %token PROPERTY
 218 %token OVERRIDE SET REVERT
 219 %token RELATIVE
 220 %token REMOVE
 221 %token REPEAT
 222 %token ADDLYRICS
 223 %token PARTCOMBINE
 224 %token SCM_T
 225 %token SCORE
 226 %token SKIP
 227 %token SPANREQUEST
 228 %token COMMANDSPANREQUEST
 229 %token TEMPO
 230 %token OUTPUTPROPERTY
 231 %token TIME_T
 232 %token TIMES
 233 %token TRANSLATOR
 234 %token TRANSPOSE
 235 %token TYPE
 236 %token UNSET
 237 %token CONTEXT
 238 %token REST
 239
 240 %token CHORD_OPEN
 241 %token CHORD_CLOSE
 242
 243
 244 /* escaped */
 245 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 246 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 247 %token E_BACKSLASH
 248 %token <i> E_UNSIGNED
 249 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 250 %token FIGURE_SPACE
 251
 252 %type <i>       exclamations questions dots optional_rest
 253 %type <i>       bass_number bass_mod
 254 %type <scm>     br_bass_figure bass_figure figure_list figure_spec
 255 %token <i>      DIGIT
 256 %token <scm>    NOTENAME_PITCH
 257 %token <scm>    TONICNAME_PITCH
 258 %token <scm>    CHORDMODIFIER_PITCH
 259 %token <scm>    DURATION_IDENTIFIER
 260 %token <scm>    FRACTION
 261 %token <id>     IDENTIFIER
 262
 263
 264 %token <scm>    SCORE_IDENTIFIER
 265 %token <scm>    MUSIC_OUTPUT_DEF_IDENTIFIER
 266 %token <scm>    NUMBER_IDENTIFIER
 267 %token <scm>    EVENT_IDENTIFIER
 268 %token <scm>    MUSIC_IDENTIFIER TRANSLATOR_IDENTIFIER
 269 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 270 %token <scm>    RESTNAME
 271 %token <scm>    STRING
 272 %token <scm>    SCM_T
 273 %token <i>      UNSIGNED
 274 %token <scm>   REAL
 275
 276 %type <outputdef> output_def
 277 %type <scm>     lilypond_header lilypond_header_body
 278 %type <music>   open_event_parens close_event_parens open_event close_event
 279 %type <music> event_with_dir event_that_take_dir verbose_event
 280 %type <i>       sub_quotes sup_quotes
 281 %type <music>   simple_element  event_chord command_element Simple_music  Composite_music
 282 %type <music>   Repeated_music
 283 %type <scm>     Alternative_music
 284 %type <i>       tremolo_type
 285 %type <i>       bare_int  bare_unsigned
 286 %type <i>       script_dir
 287 %type <scm>     identifier_init
 288
 289 %type <music> note_chord_element chord_body chord_body_element
 290 %type <scm>  chord_body_elements
 291 %type <scm> steno_duration optional_notemode_duration multiplied_duration
 292 %type <scm>  verbose_duration
 293
 294 %type <scm>  pre_events post_events
 295 %type <music> gen_text_def
 296 %type <scm>   steno_pitch pitch absolute_pitch
 297 %type <scm>   explicit_pitch steno_tonic_pitch
 298
 299 %type <scm>     chord_additions chord_subtractions chord_notes chord_step
 300 %type <music>   chord
 301 %type <scm>     chord_note chord_inversion chord_bass
 302 %type <scm>     duration_length fraction
 303
 304 %type <scm>  embedded_scm scalar
 305 %type <music>   Music Sequential_music Simultaneous_music
 306 %type <music>   relative_music re_rhythmed_music part_combined_music
 307 %type <music>   property_def translator_change  simple_property_def
 308 %type <scm> Music_list
 309 %type <outputdef>  music_output_def_body
 310 %type <music> shorthand_command_req
 311 %type <music>   post_event
 312 %type <music> command_req verbose_command_req
 313 %type <music>   extender_req
 314 %type <music> hyphen_req
 315 %type <music> string_event
 316 %type <scm>     string bare_number number_expression number_term number_factor
 317 %type <score>   score_block score_body
 318
 319 %type <scm>     translator_spec_block translator_spec_body
 320 %type <music>   tempo_event
 321 %type <scm> notenames_body notenames_block chordmodifiers_block
 322 %type <scm>     script_abbreviation
 323
 324
 325
 326 %left '-' '+'
 327
 328 /* We don't assign precedence to / and *, because we might need varied
 329 prec levels in different prods */
 330
 331 %left UNARY_MINUS
 332
 333 %%
 334
 335 lilypond:       /* empty */
 336         | lilypond toplevel_expression {}
 337         | lilypond assignment  { }
 338         | lilypond error {
 339                 THIS->error_level_  = 1;
 340         }
 341         | lilypond INVALID      {
 342                 THIS->error_level_  = 1;
 343         }
 344         ;
 345
 346 toplevel_expression:
 347         notenames_block                 {
 348                 THIS->lexer_->pitchname_tab_ =  $1;
 349         }
 350         | chordmodifiers_block                  {
 351                 THIS->lexer_->chordmodifier_tab_  = $1;
 352         }
 353         | lilypond_header {
 354                 THIS->input_file_->header_ = $1;
 355         }
 356         | score_block {
 357                 THIS->input_file_->scores_.push ($1);
 358         }
 359         | output_def {
 360                 if (dynamic_cast<Paper_def*> ($1))
 361                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultpaper"), $1->self_scm ());
 362                 else if (dynamic_cast<Midi_def*> ($1))
 363                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultmidi"), $1->self_scm ());
 364         }
 365         ;
 366
 367 embedded_scm:
 368         SCM_T
 369         | SCM_IDENTIFIER
 370         ;
 371
 372
 373 chordmodifiers_block:
 374         CHORDMODIFIERS notenames_body   {  $$ = $2; }
 375         ;
 376
 377 notenames_block:
 378         PITCHNAMES notenames_body   {  $$ = $2; }
 379         ;
 380
 381 notenames_body:
 382         embedded_scm    {
 383           int i = scm_ilength ($1);
 384
 385           SCM tab = scm_make_vector (gh_int2scm (i), SCM_EOL);
 386           for (SCM s = $1; gh_pair_p (s); s = ly_cdr (s)) {
 387                 SCM pt = ly_cdar (s);
 388                 if (!unsmob_pitch (pt))
 389                         THIS->parser_error ("Need pitch object.");
 390                 else
 391                         scm_hashq_set_x (tab, ly_caar (s), pt);
 392           }
 393
 394           $$ = tab;
 395         }
 396         ;
 397
 398 lilypond_header_body:
 399         {
 400                 $$ = ly_make_anonymous_module ();
 401                 THIS->lexer_->add_scope ($$);
 402         }
 403         | lilypond_header_body assignment  {
 404
 405         }
 406         ;
 407
 408 lilypond_header:
 409         HEADER '{' lilypond_header_body '}'     {
 410                 $$ = THIS->lexer_-> remove_scope();
 411         }
 412         ;
 413
 414
 415 /*
 416         DECLARATIONS
 417 */
 418 assignment:
 419         STRING {
 420                 THIS->push_spot ();
 421         }
 422         /* cont */ '=' identifier_init  {
 423
 424         /*
 425                 Should find generic way of associating input with objects.
 426         */
 427                 Input ip = THIS->pop_spot ();
 428
 429                 if (! regular_identifier_b ($1))
 430                 {
 431                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 432                 }
 433
 434                 THIS->lexer_->set_identifier ($1, $4);
 435
 436 /*
 437  TODO: devise standard for protection in parser.
 438
 439   The parser stack lives on the C-stack, which means that
 440 all objects can be unprotected as soon as they're here.
 441
 442 */
 443         }
 444         | embedded_scm { }
 445         ;
 446
 447
 448
 449 identifier_init:
 450         score_block {
 451                 $$ = $1->self_scm ();
 452                 scm_gc_unprotect_object ($$);
 453         }
 454         | output_def {
 455                 $$ = $1->self_scm ();
 456                 scm_gc_unprotect_object ($$);
 457         }
 458         | translator_spec_block {
 459                 $$ = $1;
 460         }
 461         | Music  {
 462                 $$ = $1->self_scm ();
 463                 scm_gc_unprotect_object ($$);
 464         }
 465         | post_event {
 466                 $$ = $1->self_scm ();
 467                 scm_gc_unprotect_object ($$);
 468         }
 469         | verbose_duration {
 470                 $$ = $1;
 471         }
 472         | number_expression {
 473                 $$ = $1;
 474         }
 475         | string {
 476                 $$ = $1;
 477         }
 478         | embedded_scm  {
 479                 $$ = $1;
 480         }
 481         ;
 482
 483 translator_spec_block:
 484         TRANSLATOR '{' translator_spec_body '}'
 485                 {
 486                 $$ = $3;
 487         }
 488         ;
 489
 490 translator_spec_body:
 491         TRANSLATOR_IDENTIFIER   {
 492                 $$ = $1;
 493                 unsmob_translator_def ($$)-> set_spot (THIS->here_input ());
 494         }
 495         | TYPE STRING   {
 496                 $$ = Translator_def::make_scm ();
 497                 Translator_def*td =  unsmob_translator_def ($$);
 498                 td->translator_group_type_ = $2;
 499                 td->set_spot (THIS->here_input ());
 500         }
 501         | translator_spec_body STRING '=' embedded_scm                  {
 502                 unsmob_translator_def ($$)->add_property_assign ($2, $4);
 503         }
 504         | translator_spec_body STRING OVERRIDE embedded_scm '=' embedded_scm {
 505                 unsmob_translator_def ($$)
 506                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 507         }
 508         | translator_spec_body STRING SET embedded_scm '=' embedded_scm {
 509                 unsmob_translator_def ($$)
 510                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 511         }
 512         | translator_spec_body STRING REVERT embedded_scm  {
 513           unsmob_translator_def ($$)->add_pop_property (
 514                 scm_string_to_symbol ($2), $4);
 515         }
 516         | translator_spec_body NAME STRING  {
 517                 unsmob_translator_def ($$)->type_name_ = $3;
 518         }
 519         | translator_spec_body CONSISTS STRING  {
 520                 unsmob_translator_def ($$)->add_element ($3);
 521         }
 522         | translator_spec_body ALIAS STRING  {
 523                 Translator_def*td = unsmob_translator_def ($$);
 524                 td->type_aliases_ = scm_cons ($3, td->type_aliases_);
 525         }
 526         | translator_spec_body GROBDESCRIPTIONS embedded_scm {
 527                 Translator_def*td = unsmob_translator_def($$);
 528                 // td->add_property_assign (ly_symbol2scm ("allGrobDescriptions"), $3);
 529                 for (SCM p = $3; gh_pair_p (p); p = ly_cdr (p))
 530                         td->add_property_assign (scm_symbol_to_string (ly_caar (p)), ly_cdar (p));
 531         }
 532         | translator_spec_body CONSISTSEND STRING  {
 533                 unsmob_translator_def ($$)->add_last_element ( $3);
 534         }
 535         | translator_spec_body ACCEPTS STRING  {
 536                 unsmob_translator_def ($$)->set_acceptor ($3,true);
 537         }
 538         | translator_spec_body DENIES STRING  {
 539                 unsmob_translator_def ($$)->set_acceptor ($3,false);
 540         }
 541         | translator_spec_body REMOVE STRING  {
 542                 unsmob_translator_def ($$)->remove_element ($3);
 543         }
 544         ;
 545
 546 /*
 547         SCORE
 548 */
 549 score_block:
 550         SCORE {
 551                 THIS->push_spot ();
 552         }
 553         /*cont*/ '{' score_body '}'     {
 554                 THIS->pop_spot ();
 555                 $$ = $4;
 556                 if (!$$->defs_.size ())
 557                 {
 558                   Music_output_def *id =
 559                         unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 560                   $$->add_output (id ? id->clone () :  new Paper_def );
 561                 }
 562         }
 563         ;
 564
 565 score_body:
 566         Music   {
 567                 $$ = new Score;
 568
 569                 $$->set_spot (THIS->here_input ());
 570                 SCM m = $1->self_scm ();
 571                 scm_gc_unprotect_object (m);
 572
 573                 /*
 574                         guh.
 575                 */
 576                 SCM check_funcs = scm_c_eval_string ("toplevel-music-functions");
 577                 for (; gh_pair_p (check_funcs); check_funcs = gh_cdr (check_funcs))
 578                         m = gh_call1 (gh_car (check_funcs), m);
 579                 $$->music_ = m;
 580
 581         }
 582         | SCORE_IDENTIFIER {
 583                 $$ = unsmob_score ($1);
 584                 $$->set_spot (THIS->here_input ());
 585         }
 586         | score_body lilypond_header    {
 587                 $$->header_ = $2;
 588         }
 589         | score_body output_def {
 590                 $$->add_output ($2);
 591         }
 592         | score_body error {
 593
 594         }
 595         ;
 596
 597
 598 /*
 599         MIDI
 600 */
 601 output_def:
 602         music_output_def_body '}' {
 603                 $$ = $1;
 604                 THIS-> lexer_-> remove_scope ();
 605         }
 606         ;
 607
 608 music_output_def_body:
 609         MIDI '{'    {
 610                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultmidi"));
 611
 612
 613                 Midi_def* p =0;
 614                 if (id)
 615                         p = dynamic_cast<Midi_def*> (id->clone ());
 616                 else
 617                         p = new Midi_def;
 618
 619                 $$ = p;
 620                 THIS->lexer_->add_scope (p->scope_);
 621         }
 622         | PAPER '{'     {
 623                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 624                   Paper_def *p = 0;
 625                 if (id)
 626                         p = dynamic_cast<Paper_def*> (id->clone ());
 627                 else
 628                         p = new Paper_def;
 629
 630                 THIS->lexer_->add_scope (p->scope_);
 631                 $$ = p;
 632         }
 633         | PAPER '{' MUSIC_OUTPUT_DEF_IDENTIFIER         {
 634                 Music_output_def * o =  unsmob_music_output_def ($3);
 635                 $$ =o;
 636
 637                 THIS->lexer_->add_scope (o->scope_);
 638         }
 639         | MIDI '{' MUSIC_OUTPUT_DEF_IDENTIFIER  {
 640                 Music_output_def * o =  unsmob_music_output_def ($3);
 641                 $$ = o;
 642
 643                 THIS->lexer_->add_scope (o->scope_);
 644         }
 645         | music_output_def_body assignment  {
 646
 647         }
 648         | music_output_def_body translator_spec_block   {
 649                 $$->assign_translator ($2);
 650         }
 651         | music_output_def_body tempo_event  {
 652                 /*
 653                         junk this ? there already is tempo stuff in
 654                         music.
 655                 */
 656                 int m = gh_scm2int ( $2->get_mus_property ("metronome-count"));
 657                 Duration *d = unsmob_duration ($2->get_mus_property ("duration"));
 658                 Midi_def * md = dynamic_cast<Midi_def*> ($$);
 659                 if (md)
 660                         md->set_tempo (d->get_length (), m);
 661         }
 662         | music_output_def_body error {
 663
 664         }
 665         ;
 666
 667 tempo_event:
 668         TEMPO steno_duration '=' bare_unsigned  {
 669                 $$ = MY_MAKE_MUSIC("TempoEvent");
 670                 $$->set_mus_property ("duration", $2);
 671                 $$->set_mus_property ("metronome-count", gh_int2scm ( $4));
 672         }
 673         ;
 674
 675 /*
 676 The representation of a  list is the
 677
 678   (LIST . LAST-CONS)
 679
 680  to have  efficient append.
 681 */
 682 Music_list: /* empty */ {
 683                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 684         }
 685         | Music_list Music {
 686                 SCM s = $$;
 687                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 688                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 689                 if (gh_pair_p (ly_cdr (s)))
 690                         gh_set_cdr_x (ly_cdr (s), c); /* append */
 691                 else
 692                         gh_set_car_x (s, c); /* set first cons */
 693                 gh_set_cdr_x (s, c) ;  /* remember last cell */
 694         }
 695         | Music_list error {
 696         }
 697         ;
 698
 699
 700 Music:
 701         Simple_music
 702         | Composite_music
 703         ;
 704
 705 Alternative_music:
 706         /* empty */ {
 707                 $$ = SCM_EOL;
 708         }
 709         | ALTERNATIVE '{' Music_list '}' {
 710                 $$ = $3;
 711         }
 712         ;
 713
 714 Repeated_music:
 715         REPEAT string bare_unsigned Music Alternative_music
 716         {
 717                 Music *beg = $4;
 718                 int times = $3;
 719                 SCM alts = gh_pair_p ($5) ? gh_car ($5) : SCM_EOL;
 720                 if (times < scm_ilength (alts)) {
 721                   unsmob_music (gh_car (alts))
 722                     ->origin ()->warning (
 723                     _("More alternatives than repeats.  Junking excess alternatives."));
 724                   alts = ly_truncate_list (times, alts);
 725                 }
 726
 727
 728                 static SCM proc;
 729                 if (!proc)
 730                         proc = scm_c_eval_string ("make-repeated-music");
 731
 732                 SCM mus = scm_call_1 (proc, $2);
 733                 scm_gc_protect_object (mus); // UGH.
 734                 Music *r =unsmob_music (mus);
 735                 if (beg)
 736                         {
 737                         r-> set_mus_property ("element", beg->self_scm ());
 738                         scm_gc_unprotect_object (beg->self_scm ());
 739                         }
 740                 r->set_mus_property ("repeat-count", gh_int2scm (times >? 1));
 741
 742                 r-> set_mus_property ("elements",alts);
 743                 if (gh_equal_p ($2, scm_makfrom0str ("tremolo")))
 744                 {
 745                 /*
 746                 we can not get durations and other stuff correct down the line, so we have to
 747                 add to the duration log here.
 748                 */
 749                         SCM func = scm_primitive_eval (ly_symbol2scm ("shift-duration-log"));
 750                         if (($3 % 3) == 0)
 751                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3*2/3)),gh_int2scm(1));
 752                         else
 753                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3)), gh_int2scm(0));
 754                 }
 755                 r->set_spot (*$4->origin ());
 756
 757                 $$ = r;
 758         }
 759         ;
 760
 761 Sequential_music:
 762         SEQUENTIAL '{' Music_list '}'           {
 763                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 764                 $$->set_mus_property ("elements", ly_car ($3));
 765                 $$->set_spot(THIS->here_input());
 766         }
 767         | '{' Music_list '}'            {
 768                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 769                 $$->set_mus_property ("elements", ly_car ($2));
 770                 $$->set_spot(THIS->here_input());
 771         }
 772         ;
 773
 774 Simultaneous_music:
 775         SIMULTANEOUS '{' Music_list '}'{
 776                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 777                 $$->set_mus_property ("elements", ly_car ($3));
 778                 $$->set_spot(THIS->here_input());
 779
 780         }
 781         | '<' Music_list '>'    {
 782                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 783                 $$->set_mus_property ("elements", ly_car ($2));
 784                 $$->set_spot(THIS->here_input());
 785         }
 786         ;
 787
 788 Simple_music:
 789         event_chord             { $$ = $1; }
 790         | OUTPUTPROPERTY embedded_scm embedded_scm '=' embedded_scm     {
 791                 SCM pred = $2;
 792                 if (!gh_symbol_p ($3))
 793                 {
 794                         THIS->parser_error (_ ("Second argument must be a symbol"));
 795                 }
 796                 /* Should check # args */
 797                 if (!gh_procedure_p (pred))
 798                 {
 799                         THIS->parser_error (_ ("First argument must be a procedure taking one argument"));
 800                 }
 801
 802                 Music*m = MY_MAKE_MUSIC("OutputPropertySetMusic");
 803                 m->set_mus_property ("predicate", pred);
 804                 m->set_mus_property ("grob-property", $3);
 805                 m->set_mus_property ("grob-value",  $5);
 806
 807                 $$ = m;
 808         }
 809         | MUSIC_IDENTIFIER {
 810                 $$ = unsmob_music ($1);
 811         }
 812         | property_def
 813         | translator_change
 814         ;
 815
 816
 817 Composite_music:
 818         CONTEXT STRING Music    {
 819                 Music*csm =MY_MAKE_MUSIC("ContextSpeccedMusic");
 820
 821                 csm->set_mus_property ("element", $3->self_scm ());
 822                 scm_gc_unprotect_object ($3->self_scm ());
 823
 824                 csm->set_mus_property ("context-type",$2);
 825                 csm->set_mus_property ("context-id", scm_makfrom0str (""));
 826
 827                 $$ = csm;
 828         }
 829         | AUTOCHANGE STRING Music       {
 830         Music*chm = MY_MAKE_MUSIC("AutoChangeMusic");
 831                 chm->set_mus_property ("element", $3->self_scm ());
 832                 chm->set_mus_property ("iterator-ctor", Auto_change_iterator::constructor_proc);
 833
 834                 scm_gc_unprotect_object ($3->self_scm ());
 835                 chm->set_mus_property ("what", $2);
 836
 837                 $$ = chm;
 838                 chm->set_spot (*$3->origin ());
 839         }
 840         | GRACE Music {
 841 #if 1
 842         /*
 843                 The other version is for easier debugging  of
 844                 Sequential_music_iterator in combination with grace notes.
 845         */
 846
 847                 SCM start = THIS->lexer_->lookup_identifier ("startGraceMusic");
 848                 SCM stop = THIS->lexer_->lookup_identifier ("stopGraceMusic");
 849                 Music *startm = unsmob_music (start);
 850                 Music *stopm = unsmob_music (stop);
 851
 852                 SCM ms = SCM_EOL;
 853                 if (stopm) {
 854                         stopm = stopm->clone ();
 855                         ms = scm_cons (stopm->self_scm (), ms);
 856                         scm_gc_unprotect_object (stopm->self_scm ());
 857                 }
 858                 ms = scm_cons ($2->self_scm (), ms);
 859                 scm_gc_unprotect_object ($2->self_scm());
 860                 if (startm) {
 861                         startm = startm->clone ();
 862                         ms = scm_cons (startm->self_scm () , ms);
 863                         scm_gc_unprotect_object (startm->self_scm ());
 864                 }
 865
 866
 867                 Music* seq = MY_MAKE_MUSIC("SequentialMusic");
 868                 seq->set_mus_property ("elements", ms);
 869
 870
 871                 $$ = MY_MAKE_MUSIC("GraceMusic");
 872                 $$->set_mus_property ("element", seq->self_scm ());
 873                 scm_gc_unprotect_object (seq->self_scm ());
 874 #else
 875                 $$ = MY_MAKE_MUSIC("GraceMusic");
 876                 $$->set_mus_property ("element", $2->self_scm ());
 877                 scm_gc_unprotect_object ($2->self_scm ());
 878 #endif
 879         }
 880         | CONTEXT string '=' string Music {
 881                 Music * csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
 882
 883                 csm->set_mus_property ("element", $5->self_scm ());
 884                 scm_gc_unprotect_object ($5->self_scm ());
 885
 886                 csm->set_mus_property ("context-type", $2);
 887                 csm->set_mus_property ("context-id", $4);
 888
 889                 $$ = csm;
 890         }
 891         | TIMES {
 892                 THIS->push_spot ();
 893         }
 894         /* CONTINUED */
 895                 fraction Music
 896
 897         {
 898                 int n = gh_scm2int (ly_car ($3)); int d = gh_scm2int (ly_cdr ($3));
 899                 Music *mp = $4;
 900         $$= MY_MAKE_MUSIC("TimeScaledMusic");
 901                 $$->set_spot (THIS->pop_spot ());
 902
 903
 904                 $$->set_mus_property ("element", mp->self_scm ());
 905                 scm_gc_unprotect_object (mp->self_scm ());
 906                 $$->set_mus_property ("numerator", gh_int2scm (n));
 907                 $$->set_mus_property ("denominator", gh_int2scm (d));
 908                 $$->compress (Moment (Rational (n,d)));
 909
 910         }
 911         | Repeated_music                { $$ = $1; }
 912         | Simultaneous_music            { $$ = $1; }
 913         | Sequential_music              { $$ = $1; }
 914         | TRANSPOSE pitch Music {
 915                 $$ = MY_MAKE_MUSIC("TransposedMusic");
 916                 Music *p = $3;
 917                 Pitch pit = *unsmob_pitch ($2);
 918
 919                 p->transpose (pit);
 920                 $$->set_mus_property ("element", p->self_scm ());
 921                 scm_gc_unprotect_object (p->self_scm ());
 922         }
 923         | TRANSPOSE steno_tonic_pitch Music {
 924                 $$ = MY_MAKE_MUSIC("TransposedMusic");
 925                 Music *p = $3;
 926                 Pitch pit = *unsmob_pitch ($2);
 927
 928                 p->transpose (pit);
 929                 $$->set_mus_property ("element", p->self_scm ());
 930                 scm_gc_unprotect_object (p->self_scm ());
 931
 932         }
 933         | APPLY embedded_scm Music  {
 934                 SCM ret = gh_call1 ($2, $3->self_scm ());
 935                 Music *m = unsmob_music (ret);
 936                 if (!m) {
 937                         THIS->parser_error ("\\apply must return a Music");
 938                         m = MY_MAKE_MUSIC("Music");
 939                         }
 940                 $$ = m;
 941         }
 942         | NOTES
 943                 { THIS->lexer_->push_note_state (); }
 944         Music
 945                 { $$ = $3;
 946                   THIS->lexer_->pop_state ();
 947                 }
 948         | FIGURES
 949                 { THIS->lexer_->push_figuredbass_state (); }
 950         Music
 951                 {
 952                   Music * chm = MY_MAKE_MUSIC("UntransposableMusic");
 953                   chm->set_mus_property ("element", $3->self_scm ());
 954                   $$ = chm;
 955                   scm_gc_unprotect_object ($3->self_scm());
 956
 957                   THIS->lexer_->pop_state ();
 958         }
 959         | CHORDS
 960                 { THIS->lexer_->push_chord_state (); }
 961         Music
 962                 {
 963                   Music * chm = MY_MAKE_MUSIC("UnrelativableMusic");
 964                   chm->set_mus_property ("element", $3->self_scm ());
 965                   scm_gc_unprotect_object ($3->self_scm());
 966                   $$ = chm;
 967
 968                   THIS->lexer_->pop_state ();
 969         }
 970         | LYRICS
 971                 { THIS->lexer_->push_lyric_state (); }
 972         Music
 973                 {
 974                   $$ = $3;
 975                   THIS->lexer_->pop_state ();
 976         }
 977         | relative_music        { $$ = $1; }
 978         | re_rhythmed_music     { $$ = $1; }
 979         | part_combined_music   { $$ = $1; }
 980         ;
 981
 982 relative_music:
 983         RELATIVE absolute_pitch Music {
 984                 Music * p = $3;
 985                 Pitch pit = *unsmob_pitch ($2);
 986                 $$ = MY_MAKE_MUSIC("RelativeOctaveMusic");
 987
 988                 $$->set_mus_property ("element", p->self_scm ());
 989                 scm_gc_unprotect_object (p->self_scm ());
 990
 991                 $$->set_mus_property ("last-pitch", p->to_relative_octave (pit).smobbed_copy ());
 992
 993         }
 994         ;
 995
 996 re_rhythmed_music:
 997         ADDLYRICS Music Music {
 998         Music*l =MY_MAKE_MUSIC("LyricCombineMusic");
 999           l->set_mus_property ("elements", gh_list ($2->self_scm (), $3->self_scm (), SCM_UNDEFINED));
1000           scm_gc_unprotect_object ($3->self_scm ());
1001           scm_gc_unprotect_object ($2->self_scm ());
1002           $$ = l;
1003         }
1004         ;
1005
1006 part_combined_music:
1007         PARTCOMBINE STRING Music Music {
1008         Music * p= MY_MAKE_MUSIC("PartCombineMusic");
1009                 p->set_mus_property ("what", $2);
1010                 p->set_mus_property ("elements", gh_list ($3->self_scm (),$4->self_scm (), SCM_UNDEFINED));
1011
1012                 scm_gc_unprotect_object ($3->self_scm ());
1013                 scm_gc_unprotect_object ($4->self_scm ());
1014
1015                 $$ = p;
1016         }
1017         ;
1018
1019 translator_change:
1020         TRANSLATOR STRING '=' STRING  {
1021                 Music*t= MY_MAKE_MUSIC("TranslatorChange");
1022                 t-> set_mus_property ("change-to-type", $2);
1023                 t-> set_mus_property ("change-to-id", $4);
1024
1025                 $$ = t;
1026                 $$->set_spot (THIS->here_input ());
1027         }
1028         ;
1029
1030 property_def:
1031         simple_property_def
1032         | ONCE simple_property_def {
1033                 $$ = $2;
1034                 SCM e = $2->get_mus_property ("element");
1035                 unsmob_music (e)->set_mus_property ("once", SCM_BOOL_T);
1036         }
1037         ;
1038
1039 simple_property_def:
1040         PROPERTY STRING '.' STRING '='  scalar {
1041                 Music *t = set_property_music (scm_string_to_symbol ($4), $6);
1042                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1043
1044                 csm->set_mus_property ("element", t->self_scm ());
1045                 scm_gc_unprotect_object (t->self_scm ());
1046
1047                 $$ = csm;
1048                 $$->set_spot (THIS->here_input ());
1049
1050                 csm-> set_mus_property ("context-type", $2);
1051         }
1052         | PROPERTY STRING '.' STRING UNSET {
1053
1054                 Music *t = MY_MAKE_MUSIC("PropertyUnset");
1055                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1056
1057                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1058                 csm->set_mus_property ("element", t->self_scm ());
1059                 scm_gc_unprotect_object (t->self_scm ());
1060
1061                 $$ = csm;
1062                 $$->set_spot (THIS->here_input ());
1063
1064                 csm-> set_mus_property ("context-type", $2);
1065         }
1066         | PROPERTY STRING '.' STRING SET embedded_scm '=' embedded_scm {
1067                 bool autobeam
1068                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1069                 bool itc = internal_type_checking_global_b;
1070                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1071                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1072                 t->set_mus_property ("pop-first", SCM_BOOL_T);
1073                 if (autobeam)
1074                         internal_type_checking_global_b = false;
1075                 t->set_mus_property ("grob-property", $6);
1076                 if (autobeam)
1077                         internal_type_checking_global_b = itc;
1078                 t->set_mus_property ("grob-value", $8);
1079
1080                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1081                 csm->set_mus_property ("element", t->self_scm ());
1082                 scm_gc_unprotect_object (t->self_scm ());
1083                 $$ = csm;
1084                 $$->set_spot (THIS->here_input ());
1085
1086                 csm-> set_mus_property ("context-type", $2);
1087         }
1088         | PROPERTY STRING '.' STRING OVERRIDE
1089                 embedded_scm '=' embedded_scm
1090         {
1091                 /*
1092                         UGH UGH UGH UGH.
1093                 */
1094                 bool autobeam
1095                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1096                 bool itc = internal_type_checking_global_b;
1097
1098                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1099                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1100                 if (autobeam)
1101                         internal_type_checking_global_b = false;
1102                 t->set_mus_property ("grob-property", $6);
1103                 t->set_mus_property ("grob-value", $8);
1104                 if (autobeam)
1105                         internal_type_checking_global_b = itc;
1106
1107                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1108                 csm->set_mus_property ("element", t->self_scm ());
1109                 scm_gc_unprotect_object (t->self_scm ());
1110
1111                 $$ = csm;
1112                 $$->set_spot (THIS->here_input ());
1113
1114                 csm-> set_mus_property ("context-type", $2);
1115
1116         }
1117         | PROPERTY STRING '.' STRING REVERT embedded_scm {
1118                 Music *t = MY_MAKE_MUSIC("RevertProperty");
1119                 bool autobeam
1120                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1121                 bool itc = internal_type_checking_global_b;
1122
1123                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1124                 if (autobeam)
1125                         internal_type_checking_global_b = false;
1126                 t->set_mus_property ("grob-property", $6);
1127                 if (autobeam)
1128                         internal_type_checking_global_b = itc;
1129
1130                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1131                 csm->set_mus_property ("element", t->self_scm ());
1132                 scm_gc_unprotect_object (t->self_scm ());
1133
1134                 $$ = csm;
1135                 $$->set_spot (THIS->here_input ());
1136
1137                 csm-> set_mus_property ("context-type", $2);
1138         }
1139         ;
1140
1141
1142 scalar:
1143         string          { $$ = $1; }
1144         | bare_int      { $$ = gh_int2scm ($1); }
1145         | embedded_scm  { $$ = $1; }
1146         ;
1147
1148
1149 event_chord:
1150         pre_events {
1151                 THIS->push_spot ();
1152         } /*cont */ simple_element post_events  {
1153                 SCM elts = $3-> get_mus_property ("elements");
1154
1155                 elts = gh_append3 (elts, scm_reverse_x ($1, SCM_EOL),
1156                                    scm_reverse_x ($4, SCM_EOL));
1157
1158                 $3-> set_mus_property ("elements", elts);
1159                 $$ = $3;
1160         }
1161         | command_element
1162         | note_chord_element
1163         ;
1164
1165
1166 note_chord_element:
1167         chord_body optional_notemode_duration post_events
1168         {
1169                 SCM dur = unsmob_duration ($2)->smobbed_copy();
1170                 SCM es = $1->get_mus_property ("elements");
1171                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1172
1173                 for (SCM s = es; gh_pair_p (s); s = gh_cdr (s))
1174                   unsmob_music (gh_car(s))->set_mus_property ("duration", dur);
1175                 es = gh_append2 (es, postevs);
1176
1177                 $1-> set_mus_property ("elements", es);
1178                 $$ = $1;
1179         }
1180         ;
1181
1182 chord_body:
1183         CHORD_OPEN chord_body_elements CHORD_CLOSE
1184         {
1185                 $$ = MY_MAKE_MUSIC("EventChord");
1186                 $$->set_mus_property ("elements",
1187                         scm_reverse_x ($2, SCM_EOL));
1188         }
1189         ;
1190
1191 chord_body_elements:
1192         /* empty */             { $$ = SCM_EOL; }
1193         | chord_body_elements chord_body_element {
1194                 $$ = gh_cons ($2->self_scm(), $1);
1195                 scm_gc_unprotect_object ($2->self_scm());
1196         }
1197         ;
1198
1199 chord_body_element:
1200         pitch exclamations questions post_events
1201         {
1202                 Music * n = MY_MAKE_MUSIC("NoteEvent");
1203                 n->set_mus_property ("pitch", $1);
1204                 if ($3 % 2)
1205                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1206                 if ($2 % 2 || $3 % 2)
1207                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1208
1209                 SCM arts = scm_reverse_x ($4, SCM_EOL);
1210                 n->set_mus_property ("articulations", arts);
1211
1212                 $$ = n;
1213         }
1214         ;
1215
1216 command_element:
1217         command_req {
1218                 $$ = MY_MAKE_MUSIC("EventChord");
1219                 $$->set_mus_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1220           scm_gc_unprotect_object ($1->self_scm());
1221
1222                 $$-> set_spot (THIS->here_input ());
1223                 $1-> set_spot (THIS->here_input ());
1224         }
1225         | E_LEFTSQUARE {
1226                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1227                 l->set_mus_property ("span-direction", gh_int2scm (START));
1228                 l->set_spot (THIS->here_input ());
1229
1230                 $$ = MY_MAKE_MUSIC("EventChord");
1231                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1232           scm_gc_unprotect_object (l->self_scm());
1233                 $$->set_spot (THIS->here_input ());
1234         }
1235         | E_RIGHTSQUARE {
1236                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1237                 l->set_mus_property ("span-direction", gh_int2scm (STOP));
1238                 l->set_spot (THIS->here_input ());
1239
1240                 $$ = MY_MAKE_MUSIC("EventChord");
1241                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1242                 $$->set_spot (THIS->here_input ());
1243           scm_gc_unprotect_object (l->self_scm());
1244
1245         }
1246         | E_BACKSLASH {
1247                 $$ = MY_MAKE_MUSIC("VoiceSeparator");
1248                 $$->set_spot (THIS->here_input ());
1249         }
1250         | '|'      {
1251
1252                 $$ = MY_MAKE_MUSIC("BarCheck");
1253                 $$->set_spot (THIS->here_input ());
1254         }
1255         | BAR STRING                    {
1256                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1257
1258                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1259                 csm->set_mus_property ("element", t->self_scm ());
1260                 scm_gc_unprotect_object (t->self_scm ());
1261
1262                 $$ = csm;
1263                 $$->set_spot (THIS->here_input ());
1264
1265                 csm->set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1266         }
1267         | PARTIAL duration_length       {
1268                 Moment m = - unsmob_duration ($2)->get_length ();
1269                 Music * p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1270
1271                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1272                 sp->set_mus_property ("element", p->self_scm ());
1273                 scm_gc_unprotect_object (p->self_scm ());
1274
1275                 $$ =sp ;
1276                 sp-> set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1277         }
1278         | CLEF STRING  {
1279                 static SCM proc ;
1280                 if (!proc)
1281                         proc = scm_c_eval_string ("make-clef-set");
1282
1283                 SCM result = scm_call_1 (proc, $2);
1284                 scm_gc_protect_object (result);
1285                 $$ = unsmob_music (result);
1286         }
1287         | TIME_T fraction  {
1288                 Music * p1 = set_property_music (ly_symbol2scm ( "timeSignatureFraction"), $2);
1289
1290                 int l = gh_scm2int (ly_car ($2));
1291                 int o = gh_scm2int (ly_cdr ($2));
1292
1293                 Moment one_beat = Moment (1)/Moment (o);
1294                 Moment len = Moment (l) * one_beat;
1295
1296
1297                 Music *p2 = set_property_music (ly_symbol2scm ("measureLength"), len.smobbed_copy ());
1298                 Music *p3 = set_property_music (ly_symbol2scm ("beatLength"), one_beat.smobbed_copy ());
1299
1300                 SCM list = scm_list_n (p1->self_scm (), p2->self_scm (), p3->self_scm(), SCM_UNDEFINED);
1301                 Music *seq = MY_MAKE_MUSIC("SequentialMusic");
1302                 seq->set_mus_property ("elements", list);
1303
1304
1305                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1306                 sp->set_mus_property ("element", seq->self_scm ());
1307
1308                 scm_gc_unprotect_object (p3->self_scm ());
1309                 scm_gc_unprotect_object (p2->self_scm ());
1310                 scm_gc_unprotect_object (p1->self_scm ());
1311                 scm_gc_unprotect_object (seq->self_scm ());
1312
1313                 $$ = sp;
1314
1315                 sp-> set_mus_property ("context-type", scm_makfrom0str ( "Timing"));
1316         }
1317         ;
1318
1319 command_req:
1320         shorthand_command_req   { $$ = $1; }
1321         | verbose_command_req   { $$ = $1; }
1322         ;
1323
1324 shorthand_command_req:
1325         extender_req {
1326                 $$ = $1;
1327         }
1328         | hyphen_req {
1329                 $$ = $1;
1330         }
1331         | '~'   {
1332                 $$ = MY_MAKE_MUSIC("TieEvent");
1333         }
1334         | '['           {
1335                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1336                 b->set_mus_property ("span-direction", gh_int2scm (START))
1337 ;
1338                 $$ =b;
1339
1340
1341                 THIS->last_beam_start_ = b->self_scm ();
1342         }
1343         | ']'           {
1344                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1345                 b->set_mus_property ("span-direction", gh_int2scm (STOP));
1346                 $$ = b;
1347         }
1348         | BREATHE {
1349                 $$ = MY_MAKE_MUSIC("BreathingSignEvent");
1350         }
1351         | E_TILDE {
1352                 $$ = MY_MAKE_MUSIC("PorrectusEvent");
1353         }
1354         ;
1355
1356 verbose_command_req:
1357         MARK DEFAULT  {
1358                 Music * m = MY_MAKE_MUSIC("MarkEvent");
1359                 $$ = m;
1360         }
1361         | MARK scalar {
1362                 Music *m = MY_MAKE_MUSIC("MarkEvent");
1363                 m->set_mus_property ("label", $2);
1364                 $$ = m;
1365         }
1366         | SKIP duration_length {
1367                 Music * skip = MY_MAKE_MUSIC("SkipEvent");
1368                 skip->set_mus_property ("duration", $2);
1369
1370                 $$ = skip;
1371         }
1372         | tempo_event {
1373                 $$ = $1;
1374         }
1375         | KEY DEFAULT {
1376                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1377                 $$ = key;
1378         }
1379         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1380                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1381
1382                 key->set_mus_property ("pitch-alist", $3);
1383                 ((Music*)key)->transpose (* unsmob_pitch ($2));
1384                 $$ = key;
1385         }
1386         ;
1387
1388 post_events:
1389         /* empty */ {
1390                 $$ = SCM_EOL;
1391         }
1392         | post_events post_event {
1393                 $2->set_spot (THIS->here_input ());
1394                 $$ = gh_cons ($2->self_scm(), $$);
1395                 scm_gc_unprotect_object ($2->self_scm());
1396         }
1397         ;
1398
1399 post_event:
1400         verbose_event
1401         | event_with_dir
1402         | close_event
1403         | string_event
1404         ;
1405
1406 string_event:
1407         E_UNSIGNED {
1408                 Music * s = MY_MAKE_MUSIC("StringNumberEvent");
1409                 s->set_mus_property ("string-number",  gh_int2scm($1));
1410                 s->set_spot (THIS->here_input ());
1411                 $$ = s;
1412         }
1413         ;
1414
1415
1416 event_that_take_dir:
1417         gen_text_def
1418         | verbose_event
1419         | close_event
1420         | open_event
1421         | script_abbreviation {
1422                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1423                 Music *a = MY_MAKE_MUSIC("ArticulationEvent");
1424                 if (gh_string_p (s))
1425                         a->set_mus_property ("articulation-type", s);
1426                 else THIS->parser_error (_ ("Expecting string as script definition"));
1427                 $$ = a;
1428         }
1429         ;
1430
1431 event_with_dir:
1432         script_dir event_that_take_dir  {
1433                 $2->set_mus_property ("direction", gh_int2scm ($1));
1434                 $$ = $2;
1435         }
1436         ;
1437
1438 verbose_event:
1439         EVENT_IDENTIFIER        {
1440                 $$ = unsmob_music ($1);
1441         }
1442         | tremolo_type  {
1443                Music * a = MY_MAKE_MUSIC("TremoloEvent");
1444                a->set_spot (THIS->here_input ());
1445                a->set_mus_property ("tremolo-type", gh_int2scm ($1));
1446                $$ = a;
1447         }
1448         ;
1449
1450 sup_quotes:
1451         '\'' {
1452                 $$ = 1;
1453         }
1454         | sup_quotes '\'' {
1455                 $$ ++;
1456         }
1457         ;
1458
1459 sub_quotes:
1460         ',' {
1461                 $$ = 1;
1462         }
1463         | sub_quotes ',' {
1464                 $$ ++ ;
1465         }
1466         ;
1467
1468 steno_pitch:
1469         NOTENAME_PITCH  {
1470                 $$ = $1;
1471         }
1472         | NOTENAME_PITCH sup_quotes     {
1473                 Pitch p = *unsmob_pitch ($1);
1474                 p.octave_ +=  $2;
1475                 $$ = p.smobbed_copy ();
1476         }
1477         | NOTENAME_PITCH sub_quotes      {
1478                 Pitch p =* unsmob_pitch ($1);
1479
1480                 p.octave_ +=  -$2;
1481                 $$ = p.smobbed_copy ();
1482
1483         }
1484         ;
1485
1486 /*
1487 ugh. duplication
1488 */
1489
1490 steno_tonic_pitch:
1491         TONICNAME_PITCH {
1492                 $$ = $1;
1493         }
1494         | TONICNAME_PITCH sup_quotes    {
1495                 Pitch p = *unsmob_pitch ($1);
1496                 p.octave_ +=  $2;
1497                 $$ = p.smobbed_copy ();
1498         }
1499         | TONICNAME_PITCH sub_quotes     {
1500                 Pitch p =* unsmob_pitch ($1);
1501
1502                 p.octave_ +=  -$2;
1503                 $$ = p.smobbed_copy ();
1504
1505         }
1506         ;
1507
1508 pitch:
1509         steno_pitch {
1510                 $$ = $1;
1511         }
1512         | explicit_pitch {
1513                 $$ = $1;
1514         }
1515         ;
1516
1517 explicit_pitch:
1518         PITCH embedded_scm {
1519                 $$ = $2;
1520                 if (!unsmob_pitch ($2)) {
1521                         THIS->parser_error (_f ("Expecting musical-pitch value", 3));
1522                          $$ = Pitch ().smobbed_copy ();
1523                 }
1524         }
1525         ;
1526
1527 verbose_duration:
1528         DURATION embedded_scm   {
1529                 $$ = $2;
1530                 if (!unsmob_duration ($2))
1531                 {
1532                         THIS->parser_error (_ ("Must have duration object"));
1533                         $$ = Duration ().smobbed_copy ();
1534                 }
1535         }
1536         ;
1537
1538 extender_req:
1539         EXTENDER {
1540                 if (!THIS->lexer_->lyric_state_b ())
1541                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1542                 $$ = MY_MAKE_MUSIC("ExtenderEvent");
1543         }
1544         ;
1545
1546 hyphen_req:
1547         HYPHEN {
1548                 if (!THIS->lexer_->lyric_state_b ())
1549                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1550                 $$ = MY_MAKE_MUSIC("HyphenEvent");
1551         }
1552         ;
1553
1554 close_event:
1555         close_event_parens {
1556                 $$ = $1;
1557                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (START))
1558 ;
1559         }
1560         ;
1561
1562 close_event_parens:
1563         '('     {
1564                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1565                 $$ = s;
1566                 s->set_spot (THIS->here_input());
1567         }
1568         | E_OPEN        {
1569                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1570                 $$ = s;
1571                 s->set_spot (THIS->here_input());
1572         }
1573         | E_SMALLER {
1574                 Music *s =MY_MAKE_MUSIC("CrescendoEvent");
1575                 $$ = s;
1576                 s->set_spot (THIS->here_input());
1577         }
1578         | E_BIGGER {
1579                 Music *s =MY_MAKE_MUSIC("DecrescendoEvent");
1580                 $$ = s;
1581                 s->set_spot (THIS->here_input());
1582         }
1583         ;
1584
1585
1586 open_event:
1587         open_event_parens {
1588                 $$ = $1;
1589                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (STOP))
1590 ;
1591         }
1592         ;
1593
1594 open_event_parens:
1595         E_EXCLAMATION   {
1596                 Music *s =  MY_MAKE_MUSIC("CrescendoEvent");
1597                 s->set_spot (THIS->here_input());
1598
1599                 $$ = s;
1600         }
1601         | ')'   {
1602                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1603                 $$ = s;
1604                 s->set_spot (THIS->here_input());
1605
1606         }
1607         | E_CLOSE       {
1608                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1609                 $$ = s;
1610                 s->set_mus_property ("span-type", scm_makfrom0str ( "phrasing-slur"));
1611                 s->set_spot (THIS->here_input());
1612         }
1613         ;
1614
1615 gen_text_def:
1616         embedded_scm {
1617                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1618                 t->set_mus_property ("text", $1);
1619                 t->set_spot (THIS->here_input ());
1620                 $$ = t;
1621         }
1622         | string {
1623                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1624                 t->set_mus_property ("text", $1);
1625                 t->set_spot (THIS->here_input ());
1626                 $$ = t;
1627         }
1628         | DIGIT {
1629                 Music * t = MY_MAKE_MUSIC("FingerEvent");
1630                 SCM finger = ly_symbol2scm ("finger");
1631                 t->set_mus_property ("digit",  gh_int2scm ($1));
1632                 t->set_spot (THIS->here_input ());
1633                 $$ = t;
1634         }
1635         ;
1636
1637 script_abbreviation:
1638         '^'             {
1639                 $$ = scm_makfrom0str ("Hat");
1640         }
1641         | '+'           {
1642                 $$ = scm_makfrom0str ("Plus");
1643         }
1644         | '-'           {
1645                 $$ = scm_makfrom0str ("Dash");
1646         }
1647         | '|'           {
1648                 $$ = scm_makfrom0str ("Bar");
1649         }
1650         | '>'           {
1651                 $$ = scm_makfrom0str ("Larger");
1652         }
1653         | '.'           {
1654                 $$ = scm_makfrom0str ("Dot");
1655         }
1656         | '_' {
1657                 $$ = scm_makfrom0str ("Underscore");
1658         }
1659         ;
1660
1661 script_dir:
1662         '_'     { $$ = DOWN; }
1663         | '^'   { $$ = UP; }
1664         | '-'   { $$ = CENTER; }
1665         ;
1666
1667 pre_events:
1668         /* empty */ {
1669                 $$ = SCM_EOL;
1670         }
1671         | pre_events open_event {
1672                 $$ = gh_cons ($2->self_scm(), $$);
1673                 scm_gc_unprotect_object ($2->self_scm());
1674         }
1675         ;
1676
1677 absolute_pitch:
1678         steno_pitch     {
1679                 $$ = $1;
1680         }
1681         ;
1682
1683 duration_length:
1684         multiplied_duration {
1685                 $$ = $1;
1686         }
1687         | verbose_duration {
1688                 $$ = $1;
1689         }
1690         ;
1691
1692 optional_notemode_duration:
1693         {
1694                 Duration dd = THIS->default_duration_;
1695                 $$ = dd.smobbed_copy ();
1696
1697                 THIS->beam_check ($$);
1698         }
1699         | multiplied_duration   {
1700                 $$ = $1;
1701                 THIS->default_duration_ = *unsmob_duration ($$);
1702
1703                 THIS->beam_check ($$);
1704         }
1705         | verbose_duration {
1706                 $$ = $1;
1707                 THIS->default_duration_ = *unsmob_duration ($$);
1708         }
1709         ;
1710
1711 steno_duration:
1712         bare_unsigned dots              {
1713                 int l = 0;
1714                 if (!is_duration_b ($1))
1715                         THIS->parser_error (_f ("not a duration: %d", $1));
1716                 else
1717                         l =  intlog2 ($1);
1718
1719                 $$ = Duration (l, $2).smobbed_copy ();
1720         }
1721         | DURATION_IDENTIFIER dots      {
1722                 Duration *d =unsmob_duration ($1);
1723                 Duration k (d->duration_log (),d->dot_count () + $2);
1724
1725                 *d = k;
1726                 $$ = $1;
1727         }
1728         ;
1729
1730
1731
1732
1733 multiplied_duration:
1734         steno_duration {
1735                 $$ = $1;
1736         }
1737         | multiplied_duration '*' bare_unsigned {
1738                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1739         }
1740         | multiplied_duration '*' FRACTION {
1741                 Rational  m (gh_scm2int (ly_car ($3)), gh_scm2int (ly_cdr ($3)));
1742
1743                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1744         }
1745         ;
1746
1747 fraction:
1748         FRACTION { $$ = $1; }
1749         | UNSIGNED '/' UNSIGNED {
1750                 $$ = scm_cons (gh_int2scm ($1), gh_int2scm ($3));
1751         }
1752         ;
1753
1754 dots:
1755         /* empty */     {
1756                 $$ = 0;
1757         }
1758         | dots '.' {
1759                 $$ ++;
1760         }
1761         ;
1762
1763
1764 tremolo_type:
1765         ':'     {
1766                 $$ =0;
1767         }
1768         | ':' bare_unsigned {
1769                 if (!is_duration_b ($2))
1770                         THIS->parser_error (_f ("not a duration: %d", $2));
1771                 $$ = $2;
1772         }
1773         ;
1774
1775
1776
1777 /*****************************************************************
1778                 BASS FIGURES
1779 *****************************************************************/
1780 bass_number:
1781         DIGIT
1782         | UNSIGNED
1783         ;
1784
1785 bass_mod:
1786         '-'     { $$ = -1; }
1787         | '+'   { $$ = 1; }
1788         | '!'   { $$ = 0; }
1789         ;
1790
1791 bass_figure:
1792         FIGURE_SPACE {
1793                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1794                 $$ = bfr->self_scm();
1795                 scm_gc_unprotect_object ($$);
1796         }
1797         | bass_number  {
1798                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1799                 $$ = bfr->self_scm();
1800
1801                 bfr->set_mus_property ("figure", gh_int2scm ($1));
1802
1803                 scm_gc_unprotect_object ($$);
1804         }
1805         | bass_figure bass_mod {
1806                 Music *m = unsmob_music ($1);
1807                 if ($2) {
1808                         SCM salter =m->get_mus_property ("alteration");
1809                         int alter = gh_number_p ( salter) ? gh_scm2int (salter) : 0;
1810                         m->set_mus_property ("alteration",
1811                                 gh_int2scm (alter + $2));
1812                 } else {
1813                         m->set_mus_property ("alteration", gh_int2scm (0));
1814                 }
1815         }
1816         ;
1817
1818 br_bass_figure:
1819         '[' bass_figure {
1820                 $$ = $2;
1821                 unsmob_music ($$)->set_mus_property ("bracket-start", SCM_BOOL_T);
1822         }
1823         | bass_figure   {
1824                 $$ = $1;
1825         }
1826         | br_bass_figure ']' {
1827                 $$ = $1;
1828                 unsmob_music ($1)->set_mus_property ("bracket-stop", SCM_BOOL_T);
1829         }
1830         ;
1831
1832 figure_list:
1833         /**/            {
1834                 $$ = SCM_EOL;
1835         }
1836         | figure_list br_bass_figure {
1837                 $$ = scm_cons ($2, $1);
1838         }
1839         ;
1840
1841 figure_spec:
1842         FIGURE_OPEN figure_list FIGURE_CLOSE {
1843                 Music * m = MY_MAKE_MUSIC("EventChord");
1844                 $2 = scm_reverse_x ($2, SCM_EOL);
1845                 m->set_mus_property ("elements",  $2);
1846                 $$ = m->self_scm ();
1847         }
1848         ;
1849
1850
1851 optional_rest:
1852         /**/   { $$ = 0; }
1853         | REST { $$ = 1; }
1854         ;
1855
1856 simple_element:
1857         pitch exclamations questions optional_notemode_duration optional_rest {
1858
1859                 Input i = THIS->pop_spot ();
1860                 if (!THIS->lexer_->note_state_b ())
1861                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
1862
1863                 Music *n = 0;
1864                 if ($5)
1865                         n =  MY_MAKE_MUSIC("RestEvent");
1866                 else
1867                         n =  MY_MAKE_MUSIC("NoteEvent");
1868
1869                 n->set_mus_property ("pitch", $1);
1870                 n->set_mus_property ("duration", $4);
1871
1872
1873                 if ($3 % 2)
1874                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1875                 if ($2 % 2 || $3 % 2)
1876                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1877
1878                 Music *v = MY_MAKE_MUSIC("EventChord");
1879                 v->set_mus_property ("elements", scm_list_n (n->self_scm (), SCM_UNDEFINED));
1880                 scm_gc_unprotect_object (n->self_scm());
1881
1882                 v->set_spot (i);
1883                 n->set_spot (i);
1884                 $$ = v;
1885         }
1886         | figure_spec optional_notemode_duration {
1887                 Music * m = unsmob_music ($1);
1888                 Input i = THIS->pop_spot ();
1889                 m->set_spot (i);
1890                 for (SCM s = m->get_mus_property ("elements"); gh_pair_p (s); s = ly_cdr (s))
1891                 {
1892                         unsmob_music (ly_car (s))->set_mus_property ("duration", $2);
1893                 }
1894                 $$ = m;
1895         }
1896         | RESTNAME optional_notemode_duration           {
1897
1898                 Input i = THIS->pop_spot ();
1899                 Music * ev = 0;
1900                 if (ly_scm2string ($1) =="s") {
1901                         /* Space */
1902                         ev = MY_MAKE_MUSIC("SkipEvent");
1903                   }
1904                 else {
1905                         ev = MY_MAKE_MUSIC("RestEvent");
1906
1907                     }
1908                 ev->set_mus_property ("duration" ,$2);
1909                 ev->set_spot (i);
1910                 Music * velt = MY_MAKE_MUSIC("EventChord");
1911                 velt->set_mus_property ("elements", scm_list_n (ev->self_scm (),SCM_UNDEFINED));
1912                 velt->set_spot (i);
1913
1914                 $$ = velt;
1915         }
1916         | MULTI_MEASURE_REST optional_notemode_duration         {
1917                 THIS->pop_spot ();
1918
1919                 static SCM proc ;
1920                 if (!proc)
1921                         proc = scm_c_eval_string ("make-multi-measure-rest");
1922
1923                 SCM mus = scm_call_2 (proc, $2,
1924                         make_input (THIS->here_input()));
1925                 scm_gc_protect_object (mus);
1926                 $$ = unsmob_music (mus);
1927         }
1928         | STRING optional_notemode_duration     {
1929                 Input i = THIS->pop_spot ();
1930
1931                 Music * lreq = MY_MAKE_MUSIC("LyricEvent");
1932                 lreq->set_mus_property ("text", $1);
1933                 lreq->set_mus_property ("duration",$2);
1934                 lreq->set_spot (i);
1935                 Music * velt = MY_MAKE_MUSIC("EventChord");
1936                 velt->set_mus_property ("elements", scm_list_n (lreq->self_scm (), SCM_UNDEFINED));
1937
1938                 $$= velt;
1939         }
1940         | chord {
1941                 THIS->pop_spot ();
1942
1943                 if (!THIS->lexer_->chord_state_b ())
1944                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
1945                 $$ = $1;
1946         }
1947         ;
1948
1949
1950 chord:
1951         steno_tonic_pitch optional_notemode_duration chord_additions chord_subtractions chord_inversion chord_bass {
1952                 $$ = Chord::get_chord ($1, $3, $4, $5, $6, $2);
1953                 $$->set_spot (THIS->here_input ());
1954         };
1955
1956 chord_additions:
1957         {
1958                 $$ = SCM_EOL;
1959         }
1960         | CHORD_COLON chord_notes {
1961                 $$ = $2;
1962         }
1963         ;
1964
1965 chord_notes:
1966         chord_step {
1967                 $$ = $1;
1968         }
1969         | chord_notes '.' chord_step {
1970                 $$ = gh_append2 ($$, $3);
1971         }
1972         ;
1973
1974 chord_subtractions:
1975         {
1976                 $$ = SCM_EOL;
1977         }
1978         | CHORD_CARET chord_notes {
1979                 $$ = $2;
1980         }
1981         ;
1982
1983
1984 chord_inversion:
1985         {
1986                 $$ = SCM_EOL;
1987         }
1988         | CHORD_SLASH steno_tonic_pitch {
1989                 $$ = $2;
1990         }
1991         ;
1992
1993 chord_bass:
1994         {
1995                 $$ = SCM_EOL;
1996         }
1997         | CHORD_BASS steno_tonic_pitch {
1998                 $$ = $2;
1999         }
2000         ;
2001
2002 chord_step:
2003         chord_note {
2004                 $$ = scm_cons ($1, SCM_EOL);
2005         }
2006         | CHORDMODIFIER_PITCH {
2007                 $$ = scm_cons (unsmob_pitch ($1)->smobbed_copy (), SCM_EOL);
2008         }
2009         | CHORDMODIFIER_PITCH chord_note { /* Ugh. */
2010                 $$ = scm_list_n (unsmob_pitch ($1)->smobbed_copy (),
2011                         $2, SCM_UNDEFINED);
2012         }
2013         ;
2014
2015 chord_note:
2016         bare_unsigned {
2017                  Pitch m;
2018                 m.notename_ = ($1 - 1) % 7;
2019                 m.octave_ = $1 > 7 ? 1 : 0;
2020                 m.alteration_ = 0;
2021
2022                 $$ = m.smobbed_copy ();
2023         }
2024         | bare_unsigned '+' {
2025                 Pitch m;
2026                 m.notename_ = ($1 - 1) % 7;
2027                 m.octave_ = $1 > 7 ? 1 : 0;
2028                 m.alteration_ = 1;
2029
2030
2031                 $$ = m.smobbed_copy ();
2032         }
2033         | bare_unsigned CHORD_MINUS {
2034                 Pitch m;
2035                 m.notename_ = ($1 - 1) % 7;
2036                 m.octave_ = $1 > 7 ? 1 : 0;
2037                 m.alteration_ = -1;
2038
2039                 $$ = m.smobbed_copy ();
2040         }
2041         ;
2042
2043 /*
2044         UTILITIES
2045  */
2046 number_expression:
2047         number_expression '+' number_term {
2048                 $$ = scm_sum ($1, $3);
2049         }
2050         | number_expression '-' number_term {
2051                 $$ = scm_difference ($1, $3);
2052         }
2053         | number_term
2054         ;
2055
2056 number_term:
2057         number_factor {
2058                 $$ = $1;
2059         }
2060         | number_factor '*' number_factor {
2061                 $$ = scm_product ($1, $3);
2062         }
2063         | number_factor '/' number_factor {
2064                 $$ = scm_divide ($1, $3);
2065         }
2066         ;
2067
2068 number_factor:
2069         '-'  number_factor { /* %prec UNARY_MINUS */
2070                 $$ = scm_difference ($2, SCM_UNDEFINED);
2071         }
2072         | bare_number
2073         ;
2074
2075
2076 bare_number:
2077         UNSIGNED        {
2078                 $$ = gh_int2scm ($1);
2079         }
2080         | REAL          {
2081                 $$ = $1;
2082         }
2083         | NUMBER_IDENTIFIER             {
2084                 $$ = $1;
2085         }
2086         | REAL NUMBER_IDENTIFIER        {
2087                 $$ = gh_double2scm (gh_scm2double ($1) * gh_scm2double ($2));
2088         }
2089         | UNSIGNED NUMBER_IDENTIFIER    {
2090                 $$ = gh_double2scm ($1 * gh_scm2double ($2));
2091         }
2092         ;
2093
2094
2095 bare_unsigned:
2096         UNSIGNED {
2097                         $$ = $1;
2098         }
2099         | DIGIT {
2100                 $$ = $1;
2101         }
2102         ;
2103
2104 bare_int:
2105         bare_number {
2106                 if (scm_integer_p ($1) == SCM_BOOL_T)
2107                 {
2108                         int k = gh_scm2int ($1);
2109                         $$ = k;
2110                 } else
2111                 {
2112                         THIS->parser_error (_ ("need integer number arg"));
2113                         $$ = 0;
2114                 }
2115         }
2116         | '-' bare_int {
2117                 $$ = -$2;
2118         }
2119         ;
2120
2121
2122 string:
2123         STRING          {
2124                 $$ = $1;
2125         }
2126         | STRING_IDENTIFIER     {
2127                 $$ = $1;
2128         }
2129         | string '+' string {
2130                 $$ = scm_string_append (scm_list_n ($1, $3, SCM_UNDEFINED));
2131         }
2132         ;
2133
2134
2135 exclamations:
2136                 { $$ = 0; }
2137         | exclamations '!'      { $$ ++; }
2138         ;
2139
2140 questions:
2141                 { $$ = 0; }
2142         | questions '?' { $$ ++; }
2143         ;
2144
2145
2146 %%
2147
2148 void
2149 My_lily_parser::set_yydebug (bool )
2150 {
2151 #if 0
2152         yydebug = 1;
2153 #endif
2154 }
2155
2156 extern My_lily_parser * current_parser;
2157
2158 void
2159 My_lily_parser::do_yyparse ()
2160 {
2161         current_parser = this;;
2162         yyparse ((void*)this);
2163 }
2164
2165
2166 /*
2167 Should make this optional?    It will also complain when you do
2168
2169         [s4]
2170
2171 which is entirely legitimate.
2172
2173 Or we can scrap it. Barchecks should detect wrong durations, and
2174 skipTypesetting speeds it up a lot.
2175 */
2176
2177 void
2178 My_lily_parser::beam_check (SCM dur)
2179 {
2180   Duration *d = unsmob_duration (dur);
2181   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2182     {
2183       Music * m = unsmob_music (last_beam_start_);
2184       m->origin ()->warning (_("Suspect duration found following this beam"));
2185     }
2186   last_beam_start_ = SCM_EOL;
2187 }
2188
2189
2190 /*
2191 It is a little strange, to have this function in this file, but
2192 otherwise, we have to import music classes into the lexer.
2193
2194 */
2195 int
2196 My_lily_lexer::try_special_identifiers (SCM * destination, SCM sid)
2197 {
2198         if (gh_string_p (sid)) {
2199                 *destination = sid;
2200                 return STRING_IDENTIFIER;
2201         } else if (gh_number_p (sid)) {
2202                 *destination = sid;
2203                 return NUMBER_IDENTIFIER;
2204         } else if (unsmob_translator_def (sid)) {
2205                 *destination = unsmob_translator_def (sid)->clone_scm();
2206                 return TRANSLATOR_IDENTIFIER;
2207         } else if (unsmob_score (sid)) {
2208                 Score *sc =  new Score (*unsmob_score (sid));
2209                 *destination =sc->self_scm ();
2210                 return SCORE_IDENTIFIER;
2211         } else if (Music * mus =unsmob_music (sid)) {
2212                 *destination = unsmob_music (sid)->clone ()->self_scm();
2213                 unsmob_music (*destination)->
2214                         set_mus_property ("origin", make_input (last_input_));
2215                 return dynamic_cast<Event*> (mus)
2216                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2217         } else if (unsmob_duration (sid)) {
2218                 *destination = unsmob_duration (sid)->smobbed_copy();
2219                 return DURATION_IDENTIFIER;
2220         } else if (unsmob_music_output_def (sid)) {
2221                 Music_output_def *p = unsmob_music_output_def (sid);
2222                 p = p->clone ();
2223
2224                 *destination = p->self_scm();
2225                 return MUSIC_OUTPUT_DEF_IDENTIFIER;
2226         }
2227         return -1;
2228 }