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 pitch_also_in_chords
 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:
 683         /* empty */ {
 684                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 685         }
 686         | Music_list Music {
 687                 SCM s = $$;
 688                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 689                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 690                 if (gh_pair_p (ly_cdr (s)))
 691                         gh_set_cdr_x (ly_cdr (s), c); /* append */
 692                 else
 693                         gh_set_car_x (s, c); /* set first cons */
 694                 gh_set_cdr_x (s, c) ;  /* remember last cell */
 695         }
 696         | Music_list error {
 697         }
 698         ;
 699
 700
 701 Music:
 702         Simple_music
 703         | Composite_music
 704         ;
 705
 706 Alternative_music:
 707         /* empty */ {
 708                 $$ = SCM_EOL;
 709         }
 710         | ALTERNATIVE '{' Music_list '}' {
 711                 $$ = $3;
 712         }
 713         ;
 714
 715 Repeated_music:
 716         REPEAT string bare_unsigned Music Alternative_music
 717         {
 718                 Music *beg = $4;
 719                 int times = $3;
 720                 SCM alts = gh_pair_p ($5) ? gh_car ($5) : SCM_EOL;
 721                 if (times < scm_ilength (alts)) {
 722                   unsmob_music (gh_car (alts))
 723                     ->origin ()->warning (
 724                     _("More alternatives than repeats.  Junking excess alternatives."));
 725                   alts = ly_truncate_list (times, alts);
 726                 }
 727
 728
 729                 static SCM proc;
 730                 if (!proc)
 731                         proc = scm_c_eval_string ("make-repeated-music");
 732
 733                 SCM mus = scm_call_1 (proc, $2);
 734                 scm_gc_protect_object (mus); // UGH.
 735                 Music *r =unsmob_music (mus);
 736                 if (beg)
 737                         {
 738                         r-> set_mus_property ("element", beg->self_scm ());
 739                         scm_gc_unprotect_object (beg->self_scm ());
 740                         }
 741                 r->set_mus_property ("repeat-count", gh_int2scm (times >? 1));
 742
 743                 r-> set_mus_property ("elements",alts);
 744                 if (gh_equal_p ($2, scm_makfrom0str ("tremolo")))
 745                 {
 746                 /*
 747                 we can not get durations and other stuff correct down the line, so we have to
 748                 add to the duration log here.
 749                 */
 750                         SCM func = scm_primitive_eval (ly_symbol2scm ("shift-duration-log"));
 751                         if (($3 % 3) == 0)
 752                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3*2/3)),gh_int2scm(1));
 753                         else
 754                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3)), gh_int2scm(0));
 755                 }
 756                 r->set_spot (*$4->origin ());
 757
 758                 $$ = r;
 759         }
 760         ;
 761
 762 Sequential_music:
 763         SEQUENTIAL '{' Music_list '}'           {
 764                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 765                 $$->set_mus_property ("elements", ly_car ($3));
 766                 $$->set_spot(THIS->here_input());
 767         }
 768         | '{' Music_list '}'            {
 769                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 770                 $$->set_mus_property ("elements", ly_car ($2));
 771                 $$->set_spot(THIS->here_input());
 772         }
 773         ;
 774
 775 Simultaneous_music:
 776         SIMULTANEOUS '{' Music_list '}'{
 777                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 778                 $$->set_mus_property ("elements", ly_car ($3));
 779                 $$->set_spot(THIS->here_input());
 780
 781         }
 782         | '<' Music_list '>'    {
 783                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 784                 $$->set_mus_property ("elements", ly_car ($2));
 785                 $$->set_spot(THIS->here_input());
 786         }
 787         ;
 788
 789 Simple_music:
 790         event_chord             { $$ = $1; }
 791         | OUTPUTPROPERTY embedded_scm embedded_scm '=' embedded_scm     {
 792                 SCM pred = $2;
 793                 if (!gh_symbol_p ($3))
 794                 {
 795                         THIS->parser_error (_ ("Second argument must be a symbol"));
 796                 }
 797                 /* Should check # args */
 798                 if (!gh_procedure_p (pred))
 799                 {
 800                         THIS->parser_error (_ ("First argument must be a procedure taking one argument"));
 801                 }
 802
 803                 Music*m = MY_MAKE_MUSIC("OutputPropertySetMusic");
 804                 m->set_mus_property ("predicate", pred);
 805                 m->set_mus_property ("grob-property", $3);
 806                 m->set_mus_property ("grob-value",  $5);
 807
 808                 $$ = m;
 809         }
 810         | MUSIC_IDENTIFIER {
 811                 $$ = unsmob_music ($1);
 812         }
 813         | property_def
 814         | translator_change
 815         ;
 816
 817
 818 Composite_music:
 819         CONTEXT STRING Music    {
 820                 Music*csm =MY_MAKE_MUSIC("ContextSpeccedMusic");
 821
 822                 csm->set_mus_property ("element", $3->self_scm ());
 823                 scm_gc_unprotect_object ($3->self_scm ());
 824
 825                 csm->set_mus_property ("context-type",$2);
 826                 csm->set_mus_property ("context-id", scm_makfrom0str (""));
 827
 828                 $$ = csm;
 829         }
 830         | AUTOCHANGE STRING Music       {
 831         Music*chm = MY_MAKE_MUSIC("AutoChangeMusic");
 832                 chm->set_mus_property ("element", $3->self_scm ());
 833                 chm->set_mus_property ("iterator-ctor", Auto_change_iterator::constructor_proc);
 834
 835                 scm_gc_unprotect_object ($3->self_scm ());
 836                 chm->set_mus_property ("what", $2);
 837
 838                 $$ = chm;
 839                 chm->set_spot (*$3->origin ());
 840         }
 841         | GRACE Music {
 842 #if 1
 843         /*
 844                 The other version is for easier debugging  of
 845                 Sequential_music_iterator in combination with grace notes.
 846         */
 847
 848                 SCM start = THIS->lexer_->lookup_identifier ("startGraceMusic");
 849                 SCM stop = THIS->lexer_->lookup_identifier ("stopGraceMusic");
 850                 Music *startm = unsmob_music (start);
 851                 Music *stopm = unsmob_music (stop);
 852
 853                 SCM ms = SCM_EOL;
 854                 if (stopm) {
 855                         stopm = stopm->clone ();
 856                         ms = scm_cons (stopm->self_scm (), ms);
 857                         scm_gc_unprotect_object (stopm->self_scm ());
 858                 }
 859                 ms = scm_cons ($2->self_scm (), ms);
 860                 scm_gc_unprotect_object ($2->self_scm());
 861                 if (startm) {
 862                         startm = startm->clone ();
 863                         ms = scm_cons (startm->self_scm () , ms);
 864                         scm_gc_unprotect_object (startm->self_scm ());
 865                 }
 866
 867
 868                 Music* seq = MY_MAKE_MUSIC("SequentialMusic");
 869                 seq->set_mus_property ("elements", ms);
 870
 871
 872                 $$ = MY_MAKE_MUSIC("GraceMusic");
 873                 $$->set_mus_property ("element", seq->self_scm ());
 874                 scm_gc_unprotect_object (seq->self_scm ());
 875 #else
 876                 $$ = MY_MAKE_MUSIC("GraceMusic");
 877                 $$->set_mus_property ("element", $2->self_scm ());
 878                 scm_gc_unprotect_object ($2->self_scm ());
 879 #endif
 880         }
 881         | CONTEXT string '=' string Music {
 882                 Music * csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
 883
 884                 csm->set_mus_property ("element", $5->self_scm ());
 885                 scm_gc_unprotect_object ($5->self_scm ());
 886
 887                 csm->set_mus_property ("context-type", $2);
 888                 csm->set_mus_property ("context-id", $4);
 889
 890                 $$ = csm;
 891         }
 892         | TIMES {
 893                 THIS->push_spot ();
 894         }
 895         /* CONTINUED */
 896                 fraction Music
 897
 898         {
 899                 int n = gh_scm2int (ly_car ($3)); int d = gh_scm2int (ly_cdr ($3));
 900                 Music *mp = $4;
 901         $$= MY_MAKE_MUSIC("TimeScaledMusic");
 902                 $$->set_spot (THIS->pop_spot ());
 903
 904
 905                 $$->set_mus_property ("element", mp->self_scm ());
 906                 scm_gc_unprotect_object (mp->self_scm ());
 907                 $$->set_mus_property ("numerator", gh_int2scm (n));
 908                 $$->set_mus_property ("denominator", gh_int2scm (d));
 909                 $$->compress (Moment (Rational (n,d)));
 910
 911         }
 912         | Repeated_music                { $$ = $1; }
 913         | Simultaneous_music            { $$ = $1; }
 914         | Sequential_music              { $$ = $1; }
 915         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
 916                 $$ = MY_MAKE_MUSIC("TransposedMusic");
 917                 Music *p = $4;
 918                 Pitch from = *unsmob_pitch ($2);
 919                 Pitch to = *unsmob_pitch ($3);
 920
 921                 p->transpose (interval (from, to));
 922                 $$->set_mus_property ("element", p->self_scm ());
 923                 scm_gc_unprotect_object (p->self_scm ());
 924         }
 925         | APPLY embedded_scm Music  {
 926                 SCM ret = gh_call1 ($2, $3->self_scm ());
 927                 Music *m = unsmob_music (ret);
 928                 if (!m) {
 929                         THIS->parser_error ("\\apply must return a Music");
 930                         m = MY_MAKE_MUSIC("Music");
 931                         }
 932                 $$ = m;
 933         }
 934         | NOTES
 935                 { THIS->lexer_->push_note_state (); }
 936         Music
 937                 { $$ = $3;
 938                   THIS->lexer_->pop_state ();
 939                 }
 940         | FIGURES
 941                 { THIS->lexer_->push_figuredbass_state (); }
 942         Music
 943                 {
 944                   Music * chm = MY_MAKE_MUSIC("UntransposableMusic");
 945                   chm->set_mus_property ("element", $3->self_scm ());
 946                   $$ = chm;
 947                   scm_gc_unprotect_object ($3->self_scm());
 948
 949                   THIS->lexer_->pop_state ();
 950         }
 951         | CHORDS
 952                 { THIS->lexer_->push_chord_state (); }
 953         Music
 954                 {
 955                   Music * chm = MY_MAKE_MUSIC("UnrelativableMusic");
 956                   chm->set_mus_property ("element", $3->self_scm ());
 957                   scm_gc_unprotect_object ($3->self_scm());
 958                   $$ = chm;
 959
 960                   THIS->lexer_->pop_state ();
 961         }
 962         | LYRICS
 963                 { THIS->lexer_->push_lyric_state (); }
 964         Music
 965                 {
 966                   $$ = $3;
 967                   THIS->lexer_->pop_state ();
 968         }
 969         | relative_music        { $$ = $1; }
 970         | re_rhythmed_music     { $$ = $1; }
 971         | part_combined_music   { $$ = $1; }
 972         ;
 973
 974 relative_music:
 975         RELATIVE absolute_pitch Music {
 976                 Music * p = $3;
 977                 Pitch pit = *unsmob_pitch ($2);
 978                 $$ = MY_MAKE_MUSIC("RelativeOctaveMusic");
 979
 980                 $$->set_mus_property ("element", p->self_scm ());
 981                 scm_gc_unprotect_object (p->self_scm ());
 982
 983                 $$->set_mus_property ("last-pitch", p->to_relative_octave (pit).smobbed_copy ());
 984
 985         }
 986         ;
 987
 988 re_rhythmed_music:
 989         ADDLYRICS Music Music {
 990         Music*l =MY_MAKE_MUSIC("LyricCombineMusic");
 991           l->set_mus_property ("elements", gh_list ($2->self_scm (), $3->self_scm (), SCM_UNDEFINED));
 992           scm_gc_unprotect_object ($3->self_scm ());
 993           scm_gc_unprotect_object ($2->self_scm ());
 994           $$ = l;
 995         }
 996         ;
 997
 998 part_combined_music:
 999         PARTCOMBINE STRING Music Music {
1000         Music * p= MY_MAKE_MUSIC("PartCombineMusic");
1001                 p->set_mus_property ("what", $2);
1002                 p->set_mus_property ("elements", gh_list ($3->self_scm (),$4->self_scm (), SCM_UNDEFINED));
1003
1004                 scm_gc_unprotect_object ($3->self_scm ());
1005                 scm_gc_unprotect_object ($4->self_scm ());
1006
1007                 $$ = p;
1008         }
1009         ;
1010
1011 translator_change:
1012         TRANSLATOR STRING '=' STRING  {
1013                 Music*t= MY_MAKE_MUSIC("TranslatorChange");
1014                 t-> set_mus_property ("change-to-type", $2);
1015                 t-> set_mus_property ("change-to-id", $4);
1016
1017                 $$ = t;
1018                 $$->set_spot (THIS->here_input ());
1019         }
1020         ;
1021
1022 property_def:
1023         simple_property_def
1024         | ONCE simple_property_def {
1025                 $$ = $2;
1026                 SCM e = $2->get_mus_property ("element");
1027                 unsmob_music (e)->set_mus_property ("once", SCM_BOOL_T);
1028         }
1029         ;
1030
1031 simple_property_def:
1032         PROPERTY STRING '.' STRING '='  scalar {
1033                 Music *t = set_property_music (scm_string_to_symbol ($4), $6);
1034                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1035
1036                 csm->set_mus_property ("element", t->self_scm ());
1037                 scm_gc_unprotect_object (t->self_scm ());
1038
1039                 $$ = csm;
1040                 $$->set_spot (THIS->here_input ());
1041
1042                 csm-> set_mus_property ("context-type", $2);
1043         }
1044         | PROPERTY STRING '.' STRING UNSET {
1045
1046                 Music *t = MY_MAKE_MUSIC("PropertyUnset");
1047                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1048
1049                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1050                 csm->set_mus_property ("element", t->self_scm ());
1051                 scm_gc_unprotect_object (t->self_scm ());
1052
1053                 $$ = csm;
1054                 $$->set_spot (THIS->here_input ());
1055
1056                 csm-> set_mus_property ("context-type", $2);
1057         }
1058         | PROPERTY STRING '.' STRING SET embedded_scm '=' embedded_scm {
1059                 bool autobeam
1060                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1061                 bool itc = internal_type_checking_global_b;
1062                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1063                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1064                 t->set_mus_property ("pop-first", SCM_BOOL_T);
1065                 if (autobeam)
1066                         internal_type_checking_global_b = false;
1067                 t->set_mus_property ("grob-property", $6);
1068                 if (autobeam)
1069                         internal_type_checking_global_b = itc;
1070                 t->set_mus_property ("grob-value", $8);
1071
1072                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1073                 csm->set_mus_property ("element", t->self_scm ());
1074                 scm_gc_unprotect_object (t->self_scm ());
1075                 $$ = csm;
1076                 $$->set_spot (THIS->here_input ());
1077
1078                 csm-> set_mus_property ("context-type", $2);
1079         }
1080         | PROPERTY STRING '.' STRING OVERRIDE
1081                 embedded_scm '=' embedded_scm
1082         {
1083                 /*
1084                         UGH UGH UGH UGH.
1085                 */
1086                 bool autobeam
1087                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1088                 bool itc = internal_type_checking_global_b;
1089
1090                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1091                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1092                 if (autobeam)
1093                         internal_type_checking_global_b = false;
1094                 t->set_mus_property ("grob-property", $6);
1095                 t->set_mus_property ("grob-value", $8);
1096                 if (autobeam)
1097                         internal_type_checking_global_b = itc;
1098
1099                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1100                 csm->set_mus_property ("element", t->self_scm ());
1101                 scm_gc_unprotect_object (t->self_scm ());
1102
1103                 $$ = csm;
1104                 $$->set_spot (THIS->here_input ());
1105
1106                 csm-> set_mus_property ("context-type", $2);
1107
1108         }
1109         | PROPERTY STRING '.' STRING REVERT embedded_scm {
1110                 Music *t = MY_MAKE_MUSIC("RevertProperty");
1111                 bool autobeam
1112                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1113                 bool itc = internal_type_checking_global_b;
1114
1115                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1116                 if (autobeam)
1117                         internal_type_checking_global_b = false;
1118                 t->set_mus_property ("grob-property", $6);
1119                 if (autobeam)
1120                         internal_type_checking_global_b = itc;
1121
1122                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1123                 csm->set_mus_property ("element", t->self_scm ());
1124                 scm_gc_unprotect_object (t->self_scm ());
1125
1126                 $$ = csm;
1127                 $$->set_spot (THIS->here_input ());
1128
1129                 csm-> set_mus_property ("context-type", $2);
1130         }
1131         ;
1132
1133
1134 scalar:
1135         string          { $$ = $1; }
1136         | bare_int      { $$ = gh_int2scm ($1); }
1137         | embedded_scm  { $$ = $1; }
1138         ;
1139
1140
1141 event_chord:
1142         pre_events {
1143                 THIS->push_spot ();
1144         } /*cont */ simple_element post_events  {
1145                 SCM elts = $3-> get_mus_property ("elements");
1146
1147                 elts = gh_append3 (elts, scm_reverse_x ($1, SCM_EOL),
1148                                    scm_reverse_x ($4, SCM_EOL));
1149
1150                 $3-> set_mus_property ("elements", elts);
1151                 $$ = $3;
1152         }
1153         | command_element
1154         | note_chord_element
1155         ;
1156
1157
1158 note_chord_element:
1159         chord_body optional_notemode_duration post_events
1160         {
1161                 SCM dur = unsmob_duration ($2)->smobbed_copy();
1162                 SCM es = $1->get_mus_property ("elements");
1163                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1164
1165                 for (SCM s = es; gh_pair_p (s); s = gh_cdr (s))
1166                   unsmob_music (gh_car(s))->set_mus_property ("duration", dur);
1167                 es = gh_append2 (es, postevs);
1168
1169                 $1-> set_mus_property ("elements", es);
1170                 $$ = $1;
1171         }
1172         ;
1173
1174 chord_body:
1175         CHORD_OPEN chord_body_elements CHORD_CLOSE
1176         {
1177                 $$ = MY_MAKE_MUSIC("EventChord");
1178                 $$->set_mus_property ("elements",
1179                         scm_reverse_x ($2, SCM_EOL));
1180         }
1181         ;
1182
1183 chord_body_elements:
1184         /* empty */             { $$ = SCM_EOL; }
1185         | chord_body_elements chord_body_element {
1186                 $$ = gh_cons ($2->self_scm(), $1);
1187                 scm_gc_unprotect_object ($2->self_scm());
1188         }
1189         ;
1190
1191 chord_body_element:
1192         pitch exclamations questions post_events
1193         {
1194                 Music * n = MY_MAKE_MUSIC("NoteEvent");
1195                 n->set_mus_property ("pitch", $1);
1196                 if ($3 % 2)
1197                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1198                 if ($2 % 2 || $3 % 2)
1199                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1200
1201                 SCM arts = scm_reverse_x ($4, SCM_EOL);
1202                 n->set_mus_property ("articulations", arts);
1203
1204                 $$ = n;
1205         }
1206         ;
1207
1208 command_element:
1209         command_req {
1210                 $$ = MY_MAKE_MUSIC("EventChord");
1211                 $$->set_mus_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1212           scm_gc_unprotect_object ($1->self_scm());
1213
1214                 $$-> set_spot (THIS->here_input ());
1215                 $1-> set_spot (THIS->here_input ());
1216         }
1217         | E_LEFTSQUARE {
1218                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1219                 l->set_mus_property ("span-direction", gh_int2scm (START));
1220                 l->set_spot (THIS->here_input ());
1221
1222                 $$ = MY_MAKE_MUSIC("EventChord");
1223                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1224                 scm_gc_unprotect_object (l->self_scm());
1225                 $$->set_spot (THIS->here_input ());
1226         }
1227         | E_RIGHTSQUARE {
1228                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1229                 l->set_mus_property ("span-direction", gh_int2scm (STOP));
1230                 l->set_spot (THIS->here_input ());
1231
1232                 $$ = MY_MAKE_MUSIC("EventChord");
1233                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1234                 $$->set_spot (THIS->here_input ());
1235                 scm_gc_unprotect_object (l->self_scm());
1236         }
1237         | E_BACKSLASH {
1238                 $$ = MY_MAKE_MUSIC("VoiceSeparator");
1239                 $$->set_spot (THIS->here_input ());
1240         }
1241         | '|'      {
1242
1243                 $$ = MY_MAKE_MUSIC("BarCheck");
1244                 $$->set_spot (THIS->here_input ());
1245         }
1246         | BAR STRING                    {
1247                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1248
1249                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1250                 csm->set_mus_property ("element", t->self_scm ());
1251                 scm_gc_unprotect_object (t->self_scm ());
1252
1253                 $$ = csm;
1254                 $$->set_spot (THIS->here_input ());
1255
1256                 csm->set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1257         }
1258         | PARTIAL duration_length       {
1259                 Moment m = - unsmob_duration ($2)->get_length ();
1260                 Music * p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1261
1262                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1263                 sp->set_mus_property ("element", p->self_scm ());
1264                 scm_gc_unprotect_object (p->self_scm ());
1265
1266                 $$ =sp ;
1267                 sp-> set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1268         }
1269         | CLEF STRING  {
1270                 static SCM proc ;
1271                 if (!proc)
1272                         proc = scm_c_eval_string ("make-clef-set");
1273
1274                 SCM result = scm_call_1 (proc, $2);
1275                 scm_gc_protect_object (result);
1276                 $$ = unsmob_music (result);
1277         }
1278         | TIME_T fraction  {
1279                 static SCM proc;
1280                 if (!proc)
1281                         proc = scm_c_eval_string ("make-time-signature-set");
1282
1283                 SCM result = scm_apply_2   (proc, gh_car ($2), gh_cdr ($2), SCM_EOL);
1284                 scm_gc_protect_object (result);
1285                 $$ = unsmob_music (result);
1286         }
1287         ;
1288
1289 command_req:
1290         shorthand_command_req   { $$ = $1; }
1291         | verbose_command_req   { $$ = $1; }
1292         ;
1293
1294 shorthand_command_req:
1295         extender_req {
1296                 $$ = $1;
1297         }
1298         | hyphen_req {
1299                 $$ = $1;
1300         }
1301         | '~'   {
1302                 $$ = MY_MAKE_MUSIC("TieEvent");
1303         }
1304         | '['           {
1305                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1306                 b->set_mus_property ("span-direction", gh_int2scm (START));
1307                 $$ = b;
1308
1309                 THIS->last_beam_start_ = b->self_scm ();
1310         }
1311         | ']'           {
1312                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1313                 b->set_mus_property ("span-direction", gh_int2scm (STOP));
1314                 $$ = b;
1315         }
1316         | BREATHE {
1317                 $$ = MY_MAKE_MUSIC("BreathingSignEvent");
1318         }
1319         | E_TILDE {
1320                 $$ = MY_MAKE_MUSIC("PorrectusEvent");
1321         }
1322         ;
1323
1324 verbose_command_req:
1325         MARK DEFAULT  {
1326                 Music * m = MY_MAKE_MUSIC("MarkEvent");
1327                 $$ = m;
1328         }
1329         | MARK scalar {
1330                 Music *m = MY_MAKE_MUSIC("MarkEvent");
1331                 m->set_mus_property ("label", $2);
1332                 $$ = m;
1333         }
1334         | SKIP duration_length {
1335                 Music * skip = MY_MAKE_MUSIC("SkipEvent");
1336                 skip->set_mus_property ("duration", $2);
1337
1338                 $$ = skip;
1339         }
1340         | tempo_event {
1341                 $$ = $1;
1342         }
1343         | KEY DEFAULT {
1344                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1345                 $$ = key;
1346         }
1347         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1348                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1349
1350                 key->set_mus_property ("pitch-alist", $3);
1351                 ((Music*)key)->transpose (* unsmob_pitch ($2));
1352                 $$ = key;
1353         }
1354         ;
1355
1356 post_events:
1357         /* empty */ {
1358                 $$ = SCM_EOL;
1359         }
1360         | post_events post_event {
1361                 $2->set_spot (THIS->here_input ());
1362                 $$ = gh_cons ($2->self_scm(), $$);
1363                 scm_gc_unprotect_object ($2->self_scm());
1364         }
1365         ;
1366
1367 post_event:
1368         verbose_event
1369         | event_with_dir
1370         | close_event
1371         | string_event
1372         ;
1373
1374 string_event:
1375         E_UNSIGNED {
1376                 Music * s = MY_MAKE_MUSIC("StringNumberEvent");
1377                 s->set_mus_property ("string-number",  gh_int2scm($1));
1378                 s->set_spot (THIS->here_input ());
1379                 $$ = s;
1380         }
1381         ;
1382
1383
1384 event_that_take_dir:
1385         gen_text_def
1386         | verbose_event
1387         | close_event
1388         | open_event
1389         | '['  {
1390                 Music * m = MY_MAKE_MUSIC ("NewBeamEvent");
1391                 m->set_spot (THIS->here_input());
1392                 m->set_mus_property ("span-direction" , gh_int2scm (START));
1393                 $$ = m;
1394         }
1395         | ']'  {
1396                 Music * m = MY_MAKE_MUSIC ("NewBeamEvent");
1397                 m->set_spot (THIS->here_input());
1398                 m->set_mus_property ("span-direction" , gh_int2scm (STOP));
1399                 $$ = m;
1400         }
1401         | '~' {
1402                 Music * m = MY_MAKE_MUSIC ("NewTieEvent");
1403                 m->set_spot (THIS->here_input());
1404                 $$ = m;
1405         }
1406         | script_abbreviation {
1407                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1408                 Music *a = MY_MAKE_MUSIC("ArticulationEvent");
1409                 if (gh_string_p (s))
1410                         a->set_mus_property ("articulation-type", s);
1411                 else THIS->parser_error (_ ("Expecting string as script definition"));
1412                 $$ = a;
1413         }
1414         ;
1415
1416 event_with_dir:
1417         script_dir event_that_take_dir  {
1418                 $2->set_mus_property ("direction", gh_int2scm ($1));
1419                 $$ = $2;
1420         }
1421         ;
1422
1423 verbose_event:
1424         EVENT_IDENTIFIER        {
1425                 $$ = unsmob_music ($1);
1426         }
1427         | tremolo_type  {
1428                Music * a = MY_MAKE_MUSIC("TremoloEvent");
1429                a->set_spot (THIS->here_input ());
1430                a->set_mus_property ("tremolo-type", gh_int2scm ($1));
1431                $$ = a;
1432         }
1433         ;
1434
1435 sup_quotes:
1436         '\'' {
1437                 $$ = 1;
1438         }
1439         | sup_quotes '\'' {
1440                 $$ ++;
1441         }
1442         ;
1443
1444 sub_quotes:
1445         ',' {
1446                 $$ = 1;
1447         }
1448         | sub_quotes ',' {
1449                 $$ ++ ;
1450         }
1451         ;
1452
1453 steno_pitch:
1454         NOTENAME_PITCH  {
1455                 $$ = $1;
1456         }
1457         | NOTENAME_PITCH sup_quotes     {
1458                 Pitch p = *unsmob_pitch ($1);
1459                 p.octave_ +=  $2;
1460                 $$ = p.smobbed_copy ();
1461         }
1462         | NOTENAME_PITCH sub_quotes      {
1463                 Pitch p =* unsmob_pitch ($1);
1464
1465                 p.octave_ +=  -$2;
1466                 $$ = p.smobbed_copy ();
1467
1468         }
1469         ;
1470
1471 /*
1472 ugh. duplication
1473 */
1474
1475 steno_tonic_pitch:
1476         TONICNAME_PITCH {
1477                 $$ = $1;
1478         }
1479         | TONICNAME_PITCH sup_quotes    {
1480                 Pitch p = *unsmob_pitch ($1);
1481                 p.octave_ +=  $2;
1482                 $$ = p.smobbed_copy ();
1483         }
1484         | TONICNAME_PITCH sub_quotes     {
1485                 Pitch p =* unsmob_pitch ($1);
1486
1487                 p.octave_ +=  -$2;
1488                 $$ = p.smobbed_copy ();
1489
1490         }
1491         ;
1492
1493 pitch:
1494         steno_pitch {
1495                 $$ = $1;
1496         }
1497         | explicit_pitch {
1498                 $$ = $1;
1499         }
1500         ;
1501
1502 pitch_also_in_chords:
1503         pitch
1504         | steno_tonic_pitch
1505         ;
1506
1507 explicit_pitch:
1508         PITCH embedded_scm {
1509                 $$ = $2;
1510                 if (!unsmob_pitch ($2)) {
1511                         THIS->parser_error (_f ("Expecting musical-pitch value", 3));
1512                          $$ = Pitch ().smobbed_copy ();
1513                 }
1514         }
1515         ;
1516
1517 verbose_duration:
1518         DURATION embedded_scm   {
1519                 $$ = $2;
1520                 if (!unsmob_duration ($2))
1521                 {
1522                         THIS->parser_error (_ ("Must have duration object"));
1523                         $$ = Duration ().smobbed_copy ();
1524                 }
1525         }
1526         ;
1527
1528 extender_req:
1529         EXTENDER {
1530                 if (!THIS->lexer_->lyric_state_b ())
1531                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1532                 $$ = MY_MAKE_MUSIC("ExtenderEvent");
1533         }
1534         ;
1535
1536 hyphen_req:
1537         HYPHEN {
1538                 if (!THIS->lexer_->lyric_state_b ())
1539                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1540                 $$ = MY_MAKE_MUSIC("HyphenEvent");
1541         }
1542         ;
1543
1544 close_event:
1545         close_event_parens {
1546                 $$ = $1;
1547                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (START))
1548 ;
1549         }
1550         ;
1551
1552 close_event_parens:
1553         '('     {
1554                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1555                 $$ = s;
1556                 s->set_spot (THIS->here_input());
1557         }
1558         | E_OPEN        {
1559                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1560                 $$ = s;
1561                 s->set_spot (THIS->here_input());
1562         }
1563         | E_SMALLER {
1564                 Music *s =MY_MAKE_MUSIC("CrescendoEvent");
1565                 $$ = s;
1566                 s->set_spot (THIS->here_input());
1567         }
1568         | E_BIGGER {
1569                 Music *s =MY_MAKE_MUSIC("DecrescendoEvent");
1570                 $$ = s;
1571                 s->set_spot (THIS->here_input());
1572         }
1573         ;
1574
1575
1576 open_event:
1577         open_event_parens {
1578                 $$ = $1;
1579                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (STOP))
1580 ;
1581         }
1582         ;
1583
1584 open_event_parens:
1585         E_EXCLAMATION   {
1586                 Music *s =  MY_MAKE_MUSIC("CrescendoEvent");
1587                 s->set_spot (THIS->here_input());
1588
1589                 $$ = s;
1590         }
1591         | ')'   {
1592                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1593                 $$ = s;
1594                 s->set_spot (THIS->here_input());
1595
1596         }
1597         | E_CLOSE       {
1598                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1599                 $$ = s;
1600                 s->set_mus_property ("span-type", scm_makfrom0str ( "phrasing-slur"));
1601                 s->set_spot (THIS->here_input());
1602         }
1603         ;
1604
1605 gen_text_def:
1606         embedded_scm {
1607                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1608                 t->set_mus_property ("text", $1);
1609                 t->set_spot (THIS->here_input ());
1610                 $$ = t;
1611         }
1612         | string {
1613                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1614                 t->set_mus_property ("text", $1);
1615                 t->set_spot (THIS->here_input ());
1616                 $$ = t;
1617         }
1618         | DIGIT {
1619                 Music * t = MY_MAKE_MUSIC("FingerEvent");
1620                 t->set_mus_property ("digit",  gh_int2scm ($1));
1621                 t->set_spot (THIS->here_input ());
1622                 $$ = t;
1623         }
1624         ;
1625
1626 script_abbreviation:
1627         '^'             {
1628                 $$ = scm_makfrom0str ("Hat");
1629         }
1630         | '+'           {
1631                 $$ = scm_makfrom0str ("Plus");
1632         }
1633         | '-'           {
1634                 $$ = scm_makfrom0str ("Dash");
1635         }
1636         | '|'           {
1637                 $$ = scm_makfrom0str ("Bar");
1638         }
1639         | '>'           {
1640                 $$ = scm_makfrom0str ("Larger");
1641         }
1642         | '.'           {
1643                 $$ = scm_makfrom0str ("Dot");
1644         }
1645         | '_' {
1646                 $$ = scm_makfrom0str ("Underscore");
1647         }
1648         ;
1649
1650 script_dir:
1651         '_'     { $$ = DOWN; }
1652         | '^'   { $$ = UP; }
1653         | '-'   { $$ = CENTER; }
1654         ;
1655
1656 pre_events:
1657         /* empty */ {
1658                 $$ = SCM_EOL;
1659         }
1660         | pre_events open_event {
1661                 $$ = gh_cons ($2->self_scm(), $$);
1662                 scm_gc_unprotect_object ($2->self_scm());
1663         }
1664         ;
1665
1666 absolute_pitch:
1667         steno_pitch     {
1668                 $$ = $1;
1669         }
1670         ;
1671
1672 duration_length:
1673         multiplied_duration {
1674                 $$ = $1;
1675         }
1676         | verbose_duration {
1677                 $$ = $1;
1678         }
1679         ;
1680
1681 optional_notemode_duration:
1682         {
1683                 Duration dd = THIS->default_duration_;
1684                 $$ = dd.smobbed_copy ();
1685
1686                 THIS->beam_check ($$);
1687         }
1688         | multiplied_duration   {
1689                 $$ = $1;
1690                 THIS->default_duration_ = *unsmob_duration ($$);
1691
1692                 THIS->beam_check ($$);
1693         }
1694         | verbose_duration {
1695                 $$ = $1;
1696                 THIS->default_duration_ = *unsmob_duration ($$);
1697         }
1698         ;
1699
1700 steno_duration:
1701         bare_unsigned dots              {
1702                 int l = 0;
1703                 if (!is_duration_b ($1))
1704                         THIS->parser_error (_f ("not a duration: %d", $1));
1705                 else
1706                         l =  intlog2 ($1);
1707
1708                 $$ = Duration (l, $2).smobbed_copy ();
1709         }
1710         | DURATION_IDENTIFIER dots      {
1711                 Duration *d =unsmob_duration ($1);
1712                 Duration k (d->duration_log (),d->dot_count () + $2);
1713
1714                 *d = k;
1715                 $$ = $1;
1716         }
1717         ;
1718
1719
1720
1721
1722 multiplied_duration:
1723         steno_duration {
1724                 $$ = $1;
1725         }
1726         | multiplied_duration '*' bare_unsigned {
1727                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1728         }
1729         | multiplied_duration '*' FRACTION {
1730                 Rational  m (gh_scm2int (ly_car ($3)), gh_scm2int (ly_cdr ($3)));
1731
1732                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1733         }
1734         ;
1735
1736 fraction:
1737         FRACTION { $$ = $1; }
1738         | UNSIGNED '/' UNSIGNED {
1739                 $$ = scm_cons (gh_int2scm ($1), gh_int2scm ($3));
1740         }
1741         ;
1742
1743 dots:
1744         /* empty */     {
1745                 $$ = 0;
1746         }
1747         | dots '.' {
1748                 $$ ++;
1749         }
1750         ;
1751
1752
1753 tremolo_type:
1754         ':'     {
1755                 $$ =0;
1756         }
1757         | ':' bare_unsigned {
1758                 if (!is_duration_b ($2))
1759                         THIS->parser_error (_f ("not a duration: %d", $2));
1760                 $$ = $2;
1761         }
1762         ;
1763
1764
1765
1766 /*****************************************************************
1767                 BASS FIGURES
1768 *****************************************************************/
1769 bass_number:
1770         DIGIT
1771         | UNSIGNED
1772         ;
1773
1774 bass_mod:
1775         '-'     { $$ = -1; }
1776         | '+'   { $$ = 1; }
1777         | '!'   { $$ = 0; }
1778         ;
1779
1780 bass_figure:
1781         FIGURE_SPACE {
1782                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1783                 $$ = bfr->self_scm();
1784                 scm_gc_unprotect_object ($$);
1785         }
1786         | bass_number  {
1787                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1788                 $$ = bfr->self_scm();
1789
1790                 bfr->set_mus_property ("figure", gh_int2scm ($1));
1791
1792                 scm_gc_unprotect_object ($$);
1793         }
1794         | bass_figure bass_mod {
1795                 Music *m = unsmob_music ($1);
1796                 if ($2) {
1797                         SCM salter =m->get_mus_property ("alteration");
1798                         int alter = gh_number_p ( salter) ? gh_scm2int (salter) : 0;
1799                         m->set_mus_property ("alteration",
1800                                 gh_int2scm (alter + $2));
1801                 } else {
1802                         m->set_mus_property ("alteration", gh_int2scm (0));
1803                 }
1804         }
1805         ;
1806
1807 br_bass_figure:
1808         '[' bass_figure {
1809                 $$ = $2;
1810                 unsmob_music ($$)->set_mus_property ("bracket-start", SCM_BOOL_T);
1811         }
1812         | bass_figure   {
1813                 $$ = $1;
1814         }
1815         | br_bass_figure ']' {
1816                 $$ = $1;
1817                 unsmob_music ($1)->set_mus_property ("bracket-stop", SCM_BOOL_T);
1818         }
1819         ;
1820
1821 figure_list:
1822         /**/            {
1823                 $$ = SCM_EOL;
1824         }
1825         | figure_list br_bass_figure {
1826                 $$ = scm_cons ($2, $1);
1827         }
1828         ;
1829
1830 figure_spec:
1831         FIGURE_OPEN figure_list FIGURE_CLOSE {
1832                 Music * m = MY_MAKE_MUSIC("EventChord");
1833                 $2 = scm_reverse_x ($2, SCM_EOL);
1834                 m->set_mus_property ("elements",  $2);
1835                 $$ = m->self_scm ();
1836         }
1837         ;
1838
1839
1840 optional_rest:
1841         /**/   { $$ = 0; }
1842         | REST { $$ = 1; }
1843         ;
1844
1845 simple_element:
1846         pitch exclamations questions optional_notemode_duration optional_rest {
1847
1848                 Input i = THIS->pop_spot ();
1849                 if (!THIS->lexer_->note_state_b ())
1850                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
1851
1852                 Music *n = 0;
1853                 if ($5)
1854                         n =  MY_MAKE_MUSIC("RestEvent");
1855                 else
1856                         n =  MY_MAKE_MUSIC("NoteEvent");
1857
1858                 n->set_mus_property ("pitch", $1);
1859                 n->set_mus_property ("duration", $4);
1860
1861
1862                 if ($3 % 2)
1863                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1864                 if ($2 % 2 || $3 % 2)
1865                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1866
1867                 Music *v = MY_MAKE_MUSIC("EventChord");
1868                 v->set_mus_property ("elements", scm_list_n (n->self_scm (), SCM_UNDEFINED));
1869                 scm_gc_unprotect_object (n->self_scm());
1870
1871                 v->set_spot (i);
1872                 n->set_spot (i);
1873                 $$ = v;
1874         }
1875         | figure_spec optional_notemode_duration {
1876                 Music * m = unsmob_music ($1);
1877                 Input i = THIS->pop_spot ();
1878                 m->set_spot (i);
1879                 for (SCM s = m->get_mus_property ("elements"); gh_pair_p (s); s = ly_cdr (s))
1880                 {
1881                         unsmob_music (ly_car (s))->set_mus_property ("duration", $2);
1882                 }
1883                 $$ = m;
1884         }
1885         | RESTNAME optional_notemode_duration           {
1886
1887                 Input i = THIS->pop_spot ();
1888                 Music * ev = 0;
1889                 if (ly_scm2string ($1) =="s") {
1890                         /* Space */
1891                         ev = MY_MAKE_MUSIC("SkipEvent");
1892                   }
1893                 else {
1894                         ev = MY_MAKE_MUSIC("RestEvent");
1895
1896                     }
1897                 ev->set_mus_property ("duration" ,$2);
1898                 ev->set_spot (i);
1899                 Music * velt = MY_MAKE_MUSIC("EventChord");
1900                 velt->set_mus_property ("elements", scm_list_n (ev->self_scm (),SCM_UNDEFINED));
1901                 velt->set_spot (i);
1902
1903                 $$ = velt;
1904         }
1905         | MULTI_MEASURE_REST optional_notemode_duration         {
1906                 THIS->pop_spot ();
1907
1908                 static SCM proc ;
1909                 if (!proc)
1910                         proc = scm_c_eval_string ("make-multi-measure-rest");
1911
1912                 SCM mus = scm_call_2 (proc, $2,
1913                         make_input (THIS->here_input()));
1914                 scm_gc_protect_object (mus);
1915                 $$ = unsmob_music (mus);
1916         }
1917         | STRING optional_notemode_duration     {
1918                 Input i = THIS->pop_spot ();
1919
1920                 Music * lreq = MY_MAKE_MUSIC("LyricEvent");
1921                 lreq->set_mus_property ("text", $1);
1922                 lreq->set_mus_property ("duration",$2);
1923                 lreq->set_spot (i);
1924                 Music * velt = MY_MAKE_MUSIC("EventChord");
1925                 velt->set_mus_property ("elements", scm_list_n (lreq->self_scm (), SCM_UNDEFINED));
1926
1927                 $$= velt;
1928         }
1929         | chord {
1930                 THIS->pop_spot ();
1931
1932                 if (!THIS->lexer_->chord_state_b ())
1933                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
1934                 $$ = $1;
1935         }
1936         ;
1937
1938
1939 chord:
1940         steno_tonic_pitch optional_notemode_duration chord_additions chord_subtractions chord_inversion chord_bass {
1941                 $$ = Chord::get_chord ($1, $3, $4, $5, $6, $2);
1942                 $$->set_spot (THIS->here_input ());
1943         };
1944
1945 chord_additions:
1946         {
1947                 $$ = SCM_EOL;
1948         }
1949         | CHORD_COLON chord_notes {
1950                 $$ = $2;
1951         }
1952         ;
1953
1954 chord_notes:
1955         chord_step {
1956                 $$ = $1;
1957         }
1958         | chord_notes '.' chord_step {
1959                 $$ = gh_append2 ($$, $3);
1960         }
1961         ;
1962
1963 chord_subtractions:
1964         {
1965                 $$ = SCM_EOL;
1966         }
1967         | CHORD_CARET chord_notes {
1968                 $$ = $2;
1969         }
1970         ;
1971
1972
1973 chord_inversion:
1974         {
1975                 $$ = SCM_EOL;
1976         }
1977         | CHORD_SLASH steno_tonic_pitch {
1978                 $$ = $2;
1979         }
1980         ;
1981
1982 chord_bass:
1983         {
1984                 $$ = SCM_EOL;
1985         }
1986         | CHORD_BASS steno_tonic_pitch {
1987                 $$ = $2;
1988         }
1989         ;
1990
1991 chord_step:
1992         chord_note {
1993                 $$ = scm_cons ($1, SCM_EOL);
1994         }
1995         | CHORDMODIFIER_PITCH {
1996                 $$ = scm_cons (unsmob_pitch ($1)->smobbed_copy (), SCM_EOL);
1997         }
1998         | CHORDMODIFIER_PITCH chord_note { /* Ugh. */
1999                 $$ = scm_list_n (unsmob_pitch ($1)->smobbed_copy (),
2000                         $2, SCM_UNDEFINED);
2001         }
2002         ;
2003
2004 chord_note:
2005         bare_unsigned {
2006                  Pitch m;
2007                 m.notename_ = ($1 - 1) % 7;
2008                 m.octave_ = $1 > 7 ? 1 : 0;
2009                 m.alteration_ = 0;
2010
2011                 $$ = m.smobbed_copy ();
2012         }
2013         | bare_unsigned '+' {
2014                 Pitch m;
2015                 m.notename_ = ($1 - 1) % 7;
2016                 m.octave_ = $1 > 7 ? 1 : 0;
2017                 m.alteration_ = 1;
2018
2019
2020                 $$ = m.smobbed_copy ();
2021         }
2022         | bare_unsigned CHORD_MINUS {
2023                 Pitch m;
2024                 m.notename_ = ($1 - 1) % 7;
2025                 m.octave_ = $1 > 7 ? 1 : 0;
2026                 m.alteration_ = -1;
2027
2028                 $$ = m.smobbed_copy ();
2029         }
2030         ;
2031
2032 /*
2033         UTILITIES
2034  */
2035 number_expression:
2036         number_expression '+' number_term {
2037                 $$ = scm_sum ($1, $3);
2038         }
2039         | number_expression '-' number_term {
2040                 $$ = scm_difference ($1, $3);
2041         }
2042         | number_term
2043         ;
2044
2045 number_term:
2046         number_factor {
2047                 $$ = $1;
2048         }
2049         | number_factor '*' number_factor {
2050                 $$ = scm_product ($1, $3);
2051         }
2052         | number_factor '/' number_factor {
2053                 $$ = scm_divide ($1, $3);
2054         }
2055         ;
2056
2057 number_factor:
2058         '-'  number_factor { /* %prec UNARY_MINUS */
2059                 $$ = scm_difference ($2, SCM_UNDEFINED);
2060         }
2061         | bare_number
2062         ;
2063
2064
2065 bare_number:
2066         UNSIGNED        {
2067                 $$ = gh_int2scm ($1);
2068         }
2069         | REAL          {
2070                 $$ = $1;
2071         }
2072         | NUMBER_IDENTIFIER             {
2073                 $$ = $1;
2074         }
2075         | REAL NUMBER_IDENTIFIER        {
2076                 $$ = gh_double2scm (gh_scm2double ($1) * gh_scm2double ($2));
2077         }
2078         | UNSIGNED NUMBER_IDENTIFIER    {
2079                 $$ = gh_double2scm ($1 * gh_scm2double ($2));
2080         }
2081         ;
2082
2083
2084 bare_unsigned:
2085         UNSIGNED {
2086                         $$ = $1;
2087         }
2088         | DIGIT {
2089                 $$ = $1;
2090         }
2091         ;
2092
2093 bare_int:
2094         bare_number {
2095                 if (scm_integer_p ($1) == SCM_BOOL_T)
2096                 {
2097                         int k = gh_scm2int ($1);
2098                         $$ = k;
2099                 } else
2100                 {
2101                         THIS->parser_error (_ ("need integer number arg"));
2102                         $$ = 0;
2103                 }
2104         }
2105         | '-' bare_int {
2106                 $$ = -$2;
2107         }
2108         ;
2109
2110
2111 string:
2112         STRING          {
2113                 $$ = $1;
2114         }
2115         | STRING_IDENTIFIER     {
2116                 $$ = $1;
2117         }
2118         | string '+' string {
2119                 $$ = scm_string_append (scm_list_n ($1, $3, SCM_UNDEFINED));
2120         }
2121         ;
2122
2123
2124 exclamations:
2125                 { $$ = 0; }
2126         | exclamations '!'      { $$ ++; }
2127         ;
2128
2129 questions:
2130                 { $$ = 0; }
2131         | questions '?' { $$ ++; }
2132         ;
2133
2134
2135 %%
2136
2137 void
2138 My_lily_parser::set_yydebug (bool )
2139 {
2140 #if 0
2141         yydebug = 1;
2142 #endif
2143 }
2144
2145 extern My_lily_parser * current_parser;
2146
2147 void
2148 My_lily_parser::do_yyparse ()
2149 {
2150         current_parser = this;;
2151         yyparse ((void*)this);
2152 }
2153
2154
2155 /*
2156 Should make this optional?    It will also complain when you do
2157
2158         [s4]
2159
2160 which is entirely legitimate.
2161
2162 Or we can scrap it. Barchecks should detect wrong durations, and
2163 skipTypesetting speeds it up a lot.
2164 */
2165
2166 void
2167 My_lily_parser::beam_check (SCM dur)
2168 {
2169   Duration *d = unsmob_duration (dur);
2170   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2171     {
2172       Music * m = unsmob_music (last_beam_start_);
2173       m->origin ()->warning (_("Suspect duration found following this beam"));
2174     }
2175   last_beam_start_ = SCM_EOL;
2176 }
2177
2178
2179 /*
2180 It is a little strange, to have this function in this file, but
2181 otherwise, we have to import music classes into the lexer.
2182
2183 */
2184 int
2185 My_lily_lexer::try_special_identifiers (SCM * destination, SCM sid)
2186 {
2187         if (gh_string_p (sid)) {
2188                 *destination = sid;
2189                 return STRING_IDENTIFIER;
2190         } else if (gh_number_p (sid)) {
2191                 *destination = sid;
2192                 return NUMBER_IDENTIFIER;
2193         } else if (unsmob_translator_def (sid)) {
2194                 *destination = unsmob_translator_def (sid)->clone_scm();
2195                 return TRANSLATOR_IDENTIFIER;
2196         } else if (unsmob_score (sid)) {
2197                 Score *sc =  new Score (*unsmob_score (sid));
2198                 *destination =sc->self_scm ();
2199                 return SCORE_IDENTIFIER;
2200         } else if (Music * mus =unsmob_music (sid)) {
2201                 *destination = unsmob_music (sid)->clone ()->self_scm();
2202                 unsmob_music (*destination)->
2203                         set_mus_property ("origin", make_input (last_input_));
2204                 return dynamic_cast<Event*> (mus)
2205                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2206         } else if (unsmob_duration (sid)) {
2207                 *destination = unsmob_duration (sid)->smobbed_copy();
2208                 return DURATION_IDENTIFIER;
2209         } else if (unsmob_music_output_def (sid)) {
2210                 Music_output_def *p = unsmob_music_output_def (sid);
2211                 p = p->clone ();
2212
2213                 *destination = p->self_scm();
2214                 return MUSIC_OUTPUT_DEF_IDENTIFIER;
2215         }
2216         return -1;
2217 }
2218 #if 0
2219
2220 markup:
2221         STRING {
2222                 $$ = scm_list_n (scm_c_eval_string ("simple-markup"), $1, SCM_UNDEFINED);
2223         }
2224         | MARKUP_HEAD0 markup
2225         | MARKUP_HEAD1 SCM_T markup
2226         | MARKUP_HEAD2 markup
2227         | MARKUP_LIST_HEAD
2228         | MARKUP_LIST_HEAD
2229         | markup_list {
2230                 $$ = $1
2231         ;
2232
2233 markup_list:
2234         '<' markup_list_body '>' { $$ = scm_reverse_x ($1, SCM_EOL); }
2235         ;
2236
2237 markup_line:
2238         '{' markup_list_body '}' { $$ = .. scm_reverse_x ($1, SCM_EOL); }
2239
2240         ;
2241 markup_list_body:
2242         /**/ {  $$ = SCM_EOL; }
2243         markup_list_body markup {
2244                 $$ = gh_cons ($2, $1) ;
2245         }
2246         ;
2247 #endif