lily/parser.yy

   1 %{ // -*-Fundamental-*-
   2
   3 /*
   4   parser.yy -- Bison/C++ parser for lilypond
   5
   6   source file of the GNU LilyPond music typesetter
   7
   8   (c)  1997--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9            Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13   Two shift/reduce problems:
  14
  15 1.      foo = bar.
  16
  17         "bar" -> String -> Lyric -> Music -> music-assignment
  18
  19         "bar" -> String -> string-assignment
  20
  21
  22 2.  \repeat
  23         \repeat .. \alternative
  24
  25
  26     \repeat { \repeat .. \alternative }
  27
  28 or
  29
  30     \repeat { \repeat } \alternative
  31
  32 )
  33
  34 --hwn
  35
  36  */
  37
  38 /*
  39
  40 TODO:
  41
  42 * The rules for who is protecting what are very shady. Uniformise
  43   this.
  44
  45 * There are too many lexical modes?
  46
  47 */
  48
  49 #include <ctype.h>
  50 #include <stdlib.h>
  51
  52 #include "translator-def.hh"
  53 #include "lily-guile.hh"
  54 #include "misc.hh"
  55 #include "my-lily-lexer.hh"
  56 #include "paper-def.hh"
  57 #include "midi-def.hh"
  58 #include "main.hh"
  59 #include "file-path.hh"
  60 #include "warn.hh"
  61 #include "dimensions.hh"
  62 #include "my-lily-parser.hh"
  63 #include "score.hh"
  64 #include "input-file-results.hh"
  65 #include "input.hh"
  66 #include "lilypond-input-version.hh"
  67 #include "scm-hash.hh"
  68 #include "auto-change-iterator.hh"
  69 #include "ly-modules.hh"
  70 #include "music-sequence.hh"
  71 #include "input-smob.hh"
  72 #include "event.hh"
  73 #include "text-item.hh"
  74
  75
  76
  77 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  78
  79
  80
  81 #define YYERROR_VERBOSE 1
  82
  83 My_lily_parser* my_lily_parser;
  84 #define YYPARSE_PARAM my_lily_parser
  85 #define YYLEX_PARAM my_lily_parser
  86 #define THIS\
  87         ((My_lily_parser *) my_lily_parser)
  88
  89 #define yyerror THIS->parser_error
  90
  91
  92
  93
  94
  95 bool
  96 regular_identifier_b (SCM id)
  97 {
  98   String str = ly_scm2string (id);
  99   char const *s = str.to_str0 () ;
 100
 101   bool v = true;
 102   while (*s && v)
 103    {
 104         v = v && isalpha (*s);
 105         s++;
 106    }
 107   return v;
 108 }
 109
 110 SCM
 111 make_simple_markup (SCM a)
 112 {
 113         static SCM simple;
 114         if (!simple)
 115         simple = scm_c_eval_string ("simple-markup");
 116
 117         return scm_list_n (simple, a, SCM_UNDEFINED);
 118 }
 119
 120
 121 bool
 122 is_duration_b (int t)
 123 {
 124   return t && t == 1 << intlog2 (t);
 125 }
 126
 127 void
 128 set_music_properties (Music *p, SCM a)
 129 {
 130   for (SCM k = a; gh_pair_p (k); k = ly_cdr (k))
 131         {
 132         p->internal_set_mus_property (ly_caar (k), ly_cdar (k));
 133         }
 134 }
 135
 136
 137 SCM
 138 make_chord_step (int step, int alter)
 139 {
 140         if (step == 7)
 141                 alter--;
 142
 143         /* ugh: fucks up above 13 */
 144         Pitch m(step > 7 ? 1 : 0,(step - 1) % 7, alter);
 145         return m.smobbed_copy ();
 146 }
 147
 148
 149 SCM
 150 make_chord (SCM pitch, SCM dur, SCM modification_list)
 151 {
 152         static SCM chord_ctor;
 153         if (!chord_ctor)
 154                 chord_ctor= scm_c_eval_string ("construct-chord");
 155         SCM ch=  scm_call_3 (chord_ctor, pitch, dur, modification_list);
 156         scm_gc_protect_object (ch);
 157         return ch;
 158 }
 159
 160
 161
 162 Music*
 163 set_property_music (SCM sym, SCM value)
 164 {
 165         Music * p = MY_MAKE_MUSIC("PropertySet");
 166         p->set_mus_property ("symbol", sym);
 167         p->set_mus_property ("value", value);
 168         return p;
 169 }
 170
 171 %}
 172
 173 /* We use SCMs to do strings, because it saves us the trouble of
 174 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 175 of the parse stack onto the heap. */
 176
 177
 178 %union {
 179         String * string;
 180     Music *music;
 181     Score *score;
 182     Music_output_def * outputdef;
 183     SCM scm;
 184     int i;
 185 }
 186 %{
 187
 188 int
 189 yylex (YYSTYPE *s,  void * v)
 190 {
 191         My_lily_parser   *pars = (My_lily_parser*) v;
 192         My_lily_lexer * lex = pars->lexer_;
 193
 194         lex->lexval = (void*) s;
 195         lex->prepare_for_next_token();
 196         return lex->yylex ();
 197 }
 198
 199
 200 %}
 201
 202 %pure_parser
 203
 204 /* tokens which are not keywords */
 205 %token AUTOCHANGE
 206 %token ALIAS
 207 %token APPLYCONTEXT
 208 %token APPLY
 209 %token ACCEPTS
 210 %token ALTERNATIVE
 211 %token BAR
 212 %token BREATHE
 213 %token CHORDMODIFIERS
 214 %token CHORDS
 215 %token CLEF
 216 %token CONSISTS
 217 %token DURATION
 218 %token SEQUENTIAL
 219 %token GROBDESCRIPTIONS
 220 %token SIMULTANEOUS
 221 %token CONSISTSEND
 222 %token DENIES
 223 %token EXTENDER
 224 %token FIGURES FIGURE_OPEN FIGURE_CLOSE
 225 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 226 %token GRACE
 227 %token HEADER
 228 %token HYPHEN
 229 %token INVALID
 230 %token KEY
 231 %token LYRICS
 232 %token MARK
 233 %token MULTI_MEASURE_REST
 234 %token MIDI
 235 %token PITCH
 236 %token DEFAULT
 237 %token NAME
 238 %token PITCHNAMES
 239 %token NOTES
 240 %token ONCE
 241 %token PAPER
 242 %token PARTIAL
 243 %token PROPERTY
 244 %token OVERRIDE SET REVERT
 245 %token RELATIVE
 246 %token REMOVE
 247 %token REPEAT
 248 %token ADDLYRICS
 249 %token PARTCOMBINE
 250 %token SCM_T
 251 %token SCORE
 252 %token SKIP
 253 %token SPANREQUEST
 254 %token COMMANDSPANREQUEST
 255 %token TEMPO
 256 %token OUTPUTPROPERTY
 257 %token TIME_T
 258 %token TIMES
 259 %token TRANSLATOR
 260 %token TRANSPOSE
 261 %token TYPE
 262 %token UNSET
 263 %token CONTEXT
 264 %token REST
 265
 266 %token CHORD_OPEN
 267 %token CHORD_CLOSE
 268
 269
 270 /* escaped */
 271 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 272 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 273 %token E_BACKSLASH
 274 %token <i> E_UNSIGNED
 275 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 276 %token FIGURE_SPACE
 277
 278 %type <i>       exclamations questions dots optional_rest
 279 %type <i>       bass_number bass_mod
 280 %type <scm>     br_bass_figure bass_figure figure_list figure_spec
 281 %token <i>      DIGIT
 282 %token <scm>    NOTENAME_PITCH
 283 %token <scm>    TONICNAME_PITCH
 284 %token <scm>    CHORDMODIFIER_PITCH
 285 %token <scm>    DURATION_IDENTIFIER
 286 %token <scm>    FRACTION
 287 %token <id>     IDENTIFIER
 288 %token <scm>    CHORDNAMES CHORDNAMES_IDENTIFIER
 289
 290 %token <scm> CHORD_MODIFIER
 291
 292 %token <scm>    SCORE_IDENTIFIER
 293 %token <scm>    MUSIC_OUTPUT_DEF_IDENTIFIER
 294 %token <scm>    NUMBER_IDENTIFIER
 295 %token <scm>    EVENT_IDENTIFIER
 296 %token <scm>    MUSIC_IDENTIFIER TRANSLATOR_IDENTIFIER
 297 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 298 %token <scm>    RESTNAME
 299 %token <scm>    STRING
 300 %token <scm>    SCM_T
 301 %token <i>      UNSIGNED
 302 %token <scm>   REAL
 303
 304 %token MARKUP
 305 %token <scm> MARKUP_HEAD_MARKUP0
 306 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 307 %token <scm> MARKUP_HEAD_SCM0
 308 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 309 %token <scm> MARKUP_HEAD_SCM0_SCM1
 310 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 311
 312 %token <scm> MARKUP_IDENTIFIER MARKUP_HEAD_LIST0
 313 %type <scm> markup markup_line markup_list  markup_list_body full_markup
 314
 315 %type <outputdef> output_def
 316 %type <scm>     lilypond_header lilypond_header_body
 317 %type <music>   open_event_parens close_event_parens open_event close_event
 318 %type <music> event_with_dir event_that_take_dir verbose_event
 319 %type <i>       sub_quotes sup_quotes
 320 %type <music>   simple_element  event_chord command_element Simple_music  Composite_music
 321 %type <music>   Repeated_music
 322 %type <scm>     Alternative_music
 323 %type <i>       tremolo_type
 324 %type <i>       bare_int  bare_unsigned
 325 %type <i>       script_dir
 326 %type <scm>     identifier_init
 327
 328 %type <music> note_chord_element chord_body chord_body_element
 329 %type <scm>  chord_body_elements
 330 %type <scm> steno_duration optional_notemode_duration multiplied_duration
 331 %type <scm>  verbose_duration
 332
 333 %type <scm>  pre_events post_events
 334 %type <music> gen_text_def
 335 %type <scm>   steno_pitch pitch absolute_pitch pitch_also_in_chords
 336 %type <scm>   explicit_pitch steno_tonic_pitch
 337
 338 /* %type <scm>  chord_additions chord_subtractions chord_notes chord_step */
 339 /* %type <music>        chord */
 340 /* %type <scm>  chord_note chord_inversion chord_bass */
 341 %type <scm>     duration_length fraction
 342
 343 %type <scm> new_chord step_number chord_items chord_item chord_separator step_numbers
 344
 345 %type <scm>  embedded_scm scalar
 346 %type <music>   Music Sequential_music Simultaneous_music
 347 %type <music>   relative_music re_rhythmed_music part_combined_music
 348 %type <music>   property_def translator_change  simple_property_def
 349 %type <scm> Music_list
 350 %type <outputdef>  music_output_def_body
 351 %type <music> shorthand_command_req
 352 %type <music>   post_event
 353 %type <music> command_req verbose_command_req
 354 %type <music>   extender_req
 355 %type <music> hyphen_req
 356 %type <music> string_event
 357 %type <scm>     string bare_number number_expression number_term number_factor
 358 %type <score>   score_block score_body
 359
 360 %type <scm>     translator_spec_block translator_spec_body
 361 %type <music>   tempo_event
 362 %type <scm> notenames_body notenames_block chordmodifiers_block
 363 %type <scm>     script_abbreviation
 364
 365
 366
 367 %left '-' '+'
 368
 369 /* We don't assign precedence to / and *, because we might need varied
 370 prec levels in different prods */
 371
 372 %left UNARY_MINUS
 373
 374 %%
 375
 376 lilypond:       /* empty */
 377         | lilypond toplevel_expression {}
 378         | lilypond assignment  { }
 379         | lilypond error {
 380                 THIS->error_level_  = 1;
 381         }
 382         | lilypond INVALID      {
 383                 THIS->error_level_  = 1;
 384         }
 385         ;
 386
 387 toplevel_expression:
 388         notenames_block                 {
 389                 THIS->lexer_->pitchname_tab_ =  $1;
 390         }
 391         | chordmodifiers_block                  {
 392                 THIS->lexer_->chordmodifier_tab_  = $1;
 393         }
 394         | lilypond_header {
 395                 THIS->input_file_->header_ = $1;
 396         }
 397         | score_block {
 398                 THIS->input_file_->scores_.push ($1);
 399         }
 400         | output_def {
 401                 if (dynamic_cast<Paper_def*> ($1))
 402                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultpaper"), $1->self_scm ());
 403                 else if (dynamic_cast<Midi_def*> ($1))
 404                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultmidi"), $1->self_scm ());
 405         }
 406         ;
 407
 408 embedded_scm:
 409         SCM_T
 410         | SCM_IDENTIFIER
 411         ;
 412
 413
 414 chordmodifiers_block:
 415         CHORDMODIFIERS notenames_body   {  $$ = $2; }
 416         ;
 417
 418 notenames_block:
 419         PITCHNAMES notenames_body   {  $$ = $2; }
 420         ;
 421
 422 notenames_body:
 423         embedded_scm    {
 424           int i = scm_ilength ($1);
 425
 426           SCM tab = scm_make_vector (gh_int2scm (i), SCM_EOL);
 427           for (SCM s = $1; gh_pair_p (s); s = ly_cdr (s)) {
 428                 SCM pt = ly_cdar (s);
 429                 scm_hashq_set_x (tab, ly_caar (s), pt);
 430           }
 431           $$ = tab;
 432         }
 433         ;
 434
 435 lilypond_header_body:
 436         {
 437                 $$ = ly_make_anonymous_module ();
 438                 THIS->lexer_->add_scope ($$);
 439         }
 440         | lilypond_header_body assignment  {
 441
 442         }
 443         ;
 444
 445 lilypond_header:
 446         HEADER '{' lilypond_header_body '}'     {
 447                 $$ = THIS->lexer_-> remove_scope();
 448         }
 449         ;
 450
 451
 452 /*
 453         DECLARATIONS
 454 */
 455 assignment:
 456         STRING {
 457                 THIS->push_spot ();
 458         }
 459         /* cont */ '=' identifier_init  {
 460
 461         /*
 462                 Should find generic way of associating input with objects.
 463         */
 464                 Input ip = THIS->pop_spot ();
 465
 466                 if (! regular_identifier_b ($1))
 467                 {
 468                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 469                 }
 470
 471                 THIS->lexer_->set_identifier ($1, $4);
 472
 473 /*
 474  TODO: devise standard for protection in parser.
 475
 476   The parser stack lives on the C-stack, which means that
 477 all objects can be unprotected as soon as they're here.
 478
 479 */
 480         }
 481         | embedded_scm { }
 482         ;
 483
 484
 485
 486 identifier_init:
 487         score_block {
 488                 $$ = $1->self_scm ();
 489                 scm_gc_unprotect_object ($$);
 490         }
 491         | full_markup {
 492                 $$ = $1;
 493         }
 494         | output_def {
 495                 $$ = $1->self_scm ();
 496                 scm_gc_unprotect_object ($$);
 497         }
 498         | translator_spec_block {
 499                 $$ = $1;
 500         }
 501         | Music  {
 502                 $$ = $1->self_scm ();
 503                 scm_gc_unprotect_object ($$);
 504         }
 505         | post_event {
 506                 $$ = $1->self_scm ();
 507                 scm_gc_unprotect_object ($$);
 508         }
 509         | verbose_duration {
 510                 $$ = $1;
 511         }
 512         | number_expression {
 513                 $$ = $1;
 514         }
 515         | string {
 516                 $$ = $1;
 517         }
 518         | embedded_scm  {
 519                 $$ = $1;
 520         }
 521         ;
 522
 523 translator_spec_block:
 524         TRANSLATOR '{' translator_spec_body '}'
 525                 {
 526                 $$ = $3;
 527         }
 528         ;
 529
 530 translator_spec_body:
 531         TRANSLATOR_IDENTIFIER   {
 532                 $$ = $1;
 533                 unsmob_translator_def ($$)-> set_spot (THIS->here_input ());
 534         }
 535         | TYPE STRING   {
 536                 $$ = Translator_def::make_scm ();
 537                 Translator_def*td =  unsmob_translator_def ($$);
 538                 td->translator_group_type_ = $2;
 539                 td->set_spot (THIS->here_input ());
 540         }
 541         | translator_spec_body STRING '=' embedded_scm                  {
 542                 unsmob_translator_def ($$)->add_property_assign ($2, $4);
 543         }
 544         | translator_spec_body STRING OVERRIDE embedded_scm '=' embedded_scm {
 545                 unsmob_translator_def ($$)
 546                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 547         }
 548         | translator_spec_body STRING SET embedded_scm '=' embedded_scm {
 549                 unsmob_translator_def ($$)
 550                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 551         }
 552         | translator_spec_body STRING REVERT embedded_scm  {
 553           unsmob_translator_def ($$)->add_pop_property (
 554                 scm_string_to_symbol ($2), $4);
 555         }
 556         | translator_spec_body NAME STRING  {
 557                 unsmob_translator_def ($$)->type_name_ = $3;
 558         }
 559         | translator_spec_body CONSISTS STRING  {
 560                 unsmob_translator_def ($$)->add_element ($3);
 561         }
 562         | translator_spec_body ALIAS STRING  {
 563                 Translator_def*td = unsmob_translator_def ($$);
 564                 td->type_aliases_ = scm_cons ($3, td->type_aliases_);
 565         }
 566         | translator_spec_body GROBDESCRIPTIONS embedded_scm {
 567                 Translator_def*td = unsmob_translator_def($$);
 568                 // td->add_property_assign (ly_symbol2scm ("allGrobDescriptions"), $3);
 569                 for (SCM p = $3; gh_pair_p (p); p = ly_cdr (p))
 570                         td->add_property_assign (scm_symbol_to_string (ly_caar (p)), ly_cdar (p));
 571         }
 572         | translator_spec_body CONSISTSEND STRING  {
 573                 unsmob_translator_def ($$)->add_last_element ( $3);
 574         }
 575         | translator_spec_body ACCEPTS STRING  {
 576                 unsmob_translator_def ($$)->set_acceptor ($3,true);
 577         }
 578         | translator_spec_body DENIES STRING  {
 579                 unsmob_translator_def ($$)->set_acceptor ($3,false);
 580         }
 581         | translator_spec_body REMOVE STRING  {
 582                 unsmob_translator_def ($$)->remove_element ($3);
 583         }
 584         ;
 585
 586 /*
 587         SCORE
 588 */
 589 score_block:
 590         SCORE {
 591                 THIS->push_spot ();
 592         }
 593         /*cont*/ '{' score_body '}'     {
 594                 THIS->pop_spot ();
 595                 $$ = $4;
 596                 if (!$$->defs_.size ())
 597                 {
 598                   Music_output_def *id =
 599                         unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 600                   $$->add_output (id ? id->clone () :  new Paper_def );
 601                 }
 602         }
 603         ;
 604
 605 score_body:
 606         Music   {
 607                 $$ = new Score;
 608
 609                 $$->set_spot (THIS->here_input ());
 610                 SCM m = $1->self_scm ();
 611                 scm_gc_unprotect_object (m);
 612
 613                 /*
 614                         guh.
 615                 */
 616                 SCM check_funcs = scm_c_eval_string ("toplevel-music-functions");
 617                 for (; gh_pair_p (check_funcs); check_funcs = gh_cdr (check_funcs))
 618                         m = gh_call1 (gh_car (check_funcs), m);
 619                 $$->music_ = m;
 620
 621         }
 622         | SCORE_IDENTIFIER {
 623                 $$ = unsmob_score ($1);
 624                 $$->set_spot (THIS->here_input ());
 625         }
 626         | score_body lilypond_header    {
 627                 $$->header_ = $2;
 628         }
 629         | score_body output_def {
 630                 $$->add_output ($2);
 631         }
 632         | score_body error {
 633
 634         }
 635         ;
 636
 637
 638 /*
 639         MIDI
 640 */
 641 output_def:
 642         music_output_def_body '}' {
 643                 $$ = $1;
 644                 THIS-> lexer_-> remove_scope ();
 645         }
 646         ;
 647
 648 music_output_def_body:
 649         MIDI '{'    {
 650                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultmidi"));
 651
 652
 653                 Midi_def* p =0;
 654                 if (id)
 655                         p = dynamic_cast<Midi_def*> (id->clone ());
 656                 else
 657                         p = new Midi_def;
 658
 659                 $$ = p;
 660                 THIS->lexer_->add_scope (p->scope_);
 661         }
 662         | PAPER '{'     {
 663                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 664                   Paper_def *p = 0;
 665                 if (id)
 666                         p = dynamic_cast<Paper_def*> (id->clone ());
 667                 else
 668                         p = new Paper_def;
 669
 670                 THIS->lexer_->add_scope (p->scope_);
 671                 $$ = p;
 672         }
 673         | PAPER '{' MUSIC_OUTPUT_DEF_IDENTIFIER         {
 674                 Music_output_def * o =  unsmob_music_output_def ($3);
 675                 $$ =o;
 676
 677                 THIS->lexer_->add_scope (o->scope_);
 678         }
 679         | MIDI '{' MUSIC_OUTPUT_DEF_IDENTIFIER  {
 680                 Music_output_def * o =  unsmob_music_output_def ($3);
 681                 $$ = o;
 682
 683                 THIS->lexer_->add_scope (o->scope_);
 684         }
 685         | music_output_def_body assignment  {
 686
 687         }
 688         | music_output_def_body translator_spec_block   {
 689                 $$->assign_translator ($2);
 690         }
 691         | music_output_def_body tempo_event  {
 692                 /*
 693                         junk this ? there already is tempo stuff in
 694                         music.
 695                 */
 696                 int m = gh_scm2int ( $2->get_mus_property ("metronome-count"));
 697                 Duration *d = unsmob_duration ($2->get_mus_property ("tempo-unit"));
 698                 Midi_def * md = dynamic_cast<Midi_def*> ($$);
 699                 if (md)
 700                         md->set_tempo (d->get_length (), m);
 701         }
 702         | music_output_def_body error {
 703
 704         }
 705         ;
 706
 707 tempo_event:
 708         TEMPO steno_duration '=' bare_unsigned  {
 709                 $$ = MY_MAKE_MUSIC("TempoEvent");
 710                 $$->set_mus_property ("tempo-unit", $2);
 711                 $$->set_mus_property ("metronome-count", gh_int2scm ( $4));
 712         }
 713         ;
 714
 715 /*
 716 The representation of a  list is the
 717
 718   (LIST . LAST-CONS)
 719
 720  to have  efficient append.
 721 */
 722 Music_list:
 723         /* empty */ {
 724                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 725         }
 726         | Music_list Music {
 727                 SCM s = $$;
 728                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 729                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 730                 if (gh_pair_p (ly_cdr (s)))
 731                         gh_set_cdr_x (ly_cdr (s), c); /* append */
 732                 else
 733                         gh_set_car_x (s, c); /* set first cons */
 734                 gh_set_cdr_x (s, c) ;  /* remember last cell */
 735         }
 736         | Music_list error {
 737         }
 738         ;
 739
 740
 741 Music:
 742         Simple_music
 743         | Composite_music
 744         ;
 745
 746 Alternative_music:
 747         /* empty */ {
 748                 $$ = SCM_EOL;
 749         }
 750         | ALTERNATIVE '{' Music_list '}' {
 751                 $$ = $3;
 752         }
 753         ;
 754
 755 Repeated_music:
 756         REPEAT string bare_unsigned Music Alternative_music
 757         {
 758                 Music *beg = $4;
 759                 int times = $3;
 760                 SCM alts = gh_pair_p ($5) ? gh_car ($5) : SCM_EOL;
 761                 if (times < scm_ilength (alts)) {
 762                   unsmob_music (gh_car (alts))
 763                     ->origin ()->warning (
 764                     _("More alternatives than repeats.  Junking excess alternatives."));
 765                   alts = ly_truncate_list (times, alts);
 766                 }
 767
 768
 769                 static SCM proc;
 770                 if (!proc)
 771                         proc = scm_c_eval_string ("make-repeated-music");
 772
 773                 SCM mus = scm_call_1 (proc, $2);
 774                 scm_gc_protect_object (mus); // UGH.
 775                 Music *r =unsmob_music (mus);
 776                 if (beg)
 777                         {
 778                         r-> set_mus_property ("element", beg->self_scm ());
 779                         scm_gc_unprotect_object (beg->self_scm ());
 780                         }
 781                 r->set_mus_property ("repeat-count", gh_int2scm (times >? 1));
 782
 783                 r-> set_mus_property ("elements",alts);
 784                 if (gh_equal_p ($2, scm_makfrom0str ("tremolo")))
 785                 {
 786                 /*
 787                 we can not get durations and other stuff correct down the line, so we have to
 788                 add to the duration log here.
 789                 */
 790                         SCM func = scm_primitive_eval (ly_symbol2scm ("shift-duration-log"));
 791                         if (($3 % 3) == 0)
 792                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3*2/3)),gh_int2scm(1));
 793                         else
 794                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3)), gh_int2scm(0));
 795                 }
 796                 r->set_spot (*$4->origin ());
 797
 798                 $$ = r;
 799         }
 800         ;
 801
 802 Sequential_music:
 803         SEQUENTIAL '{' Music_list '}'           {
 804                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 805                 $$->set_mus_property ("elements", ly_car ($3));
 806                 $$->set_spot(THIS->here_input());
 807         }
 808         | '{' Music_list '}'            {
 809                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 810                 $$->set_mus_property ("elements", ly_car ($2));
 811                 $$->set_spot(THIS->here_input());
 812         }
 813         ;
 814
 815 Simultaneous_music:
 816         SIMULTANEOUS '{' Music_list '}'{
 817                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 818                 $$->set_mus_property ("elements", ly_car ($3));
 819                 $$->set_spot(THIS->here_input());
 820
 821         }
 822         | '<' Music_list '>'    {
 823                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 824                 $$->set_mus_property ("elements", ly_car ($2));
 825                 $$->set_spot(THIS->here_input());
 826         }
 827         ;
 828
 829 Simple_music:
 830         event_chord             { $$ = $1; }
 831         | APPLYCONTEXT embedded_scm {
 832                 if (!gh_procedure_p ($2))
 833                         THIS->parser_error (_ ("\applycontext takes function argument"));
 834                 $$ = MY_MAKE_MUSIC ("ApplyContext");
 835                 $$->set_mus_property ("procedure", $2);
 836                 $$->set_spot (THIS->here_input());
 837         }
 838         | OUTPUTPROPERTY embedded_scm embedded_scm '=' embedded_scm     {
 839                 SCM pred = $2;
 840                 if (!gh_symbol_p ($3))
 841                 {
 842                         THIS->parser_error (_ ("Second argument must be a symbol"));
 843                 }
 844                 /* Should check # args */
 845                 if (!gh_procedure_p (pred))
 846                 {
 847                         THIS->parser_error (_ ("First argument must be a procedure taking one argument"));
 848                 }
 849
 850                 Music*m = MY_MAKE_MUSIC("OutputPropertySetMusic");
 851                 m->set_mus_property ("predicate", pred);
 852                 m->set_mus_property ("grob-property", $3);
 853                 m->set_mus_property ("grob-value",  $5);
 854
 855                 $$ = m;
 856         }
 857         | MUSIC_IDENTIFIER {
 858                 $$ = unsmob_music ($1);
 859         }
 860         | property_def
 861         | translator_change
 862         ;
 863
 864
 865 Composite_music:
 866         CONTEXT STRING Music    {
 867                 Music*csm =MY_MAKE_MUSIC("ContextSpeccedMusic");
 868
 869                 csm->set_mus_property ("element", $3->self_scm ());
 870                 scm_gc_unprotect_object ($3->self_scm ());
 871
 872                 csm->set_mus_property ("context-type",$2);
 873                 csm->set_mus_property ("context-id", scm_makfrom0str (""));
 874
 875                 $$ = csm;
 876         }
 877         | AUTOCHANGE STRING Music       {
 878         Music*chm = MY_MAKE_MUSIC("AutoChangeMusic");
 879                 chm->set_mus_property ("element", $3->self_scm ());
 880                 chm->set_mus_property ("iterator-ctor", Auto_change_iterator::constructor_proc);
 881
 882                 scm_gc_unprotect_object ($3->self_scm ());
 883                 chm->set_mus_property ("what", $2);
 884
 885                 $$ = chm;
 886                 chm->set_spot (*$3->origin ());
 887         }
 888         | GRACE Music {
 889 #if 1
 890         /*
 891                 The other version is for easier debugging  of
 892                 Sequential_music_iterator in combination with grace notes.
 893         */
 894
 895                 SCM start = THIS->lexer_->lookup_identifier ("startGraceMusic");
 896                 SCM stop = THIS->lexer_->lookup_identifier ("stopGraceMusic");
 897                 Music *startm = unsmob_music (start);
 898                 Music *stopm = unsmob_music (stop);
 899
 900                 SCM ms = SCM_EOL;
 901                 if (stopm) {
 902                         stopm = stopm->clone ();
 903                         ms = scm_cons (stopm->self_scm (), ms);
 904                         scm_gc_unprotect_object (stopm->self_scm ());
 905                 }
 906                 ms = scm_cons ($2->self_scm (), ms);
 907                 scm_gc_unprotect_object ($2->self_scm());
 908                 if (startm) {
 909                         startm = startm->clone ();
 910                         ms = scm_cons (startm->self_scm () , ms);
 911                         scm_gc_unprotect_object (startm->self_scm ());
 912                 }
 913
 914
 915                 Music* seq = MY_MAKE_MUSIC("SequentialMusic");
 916                 seq->set_mus_property ("elements", ms);
 917
 918
 919                 $$ = MY_MAKE_MUSIC("GraceMusic");
 920                 $$->set_mus_property ("element", seq->self_scm ());
 921                 scm_gc_unprotect_object (seq->self_scm ());
 922 #else
 923                 $$ = MY_MAKE_MUSIC("GraceMusic");
 924                 $$->set_mus_property ("element", $2->self_scm ());
 925                 scm_gc_unprotect_object ($2->self_scm ());
 926 #endif
 927         }
 928         | CONTEXT string '=' string Music {
 929                 Music * csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
 930
 931                 csm->set_mus_property ("element", $5->self_scm ());
 932                 scm_gc_unprotect_object ($5->self_scm ());
 933
 934                 csm->set_mus_property ("context-type", $2);
 935                 csm->set_mus_property ("context-id", $4);
 936
 937                 $$ = csm;
 938         }
 939         | TIMES {
 940                 THIS->push_spot ();
 941         }
 942         /* CONTINUED */
 943                 fraction Music
 944
 945         {
 946                 int n = gh_scm2int (ly_car ($3)); int d = gh_scm2int (ly_cdr ($3));
 947                 Music *mp = $4;
 948         $$= MY_MAKE_MUSIC("TimeScaledMusic");
 949                 $$->set_spot (THIS->pop_spot ());
 950
 951
 952                 $$->set_mus_property ("element", mp->self_scm ());
 953                 scm_gc_unprotect_object (mp->self_scm ());
 954                 $$->set_mus_property ("numerator", gh_int2scm (n));
 955                 $$->set_mus_property ("denominator", gh_int2scm (d));
 956                 $$->compress (Moment (Rational (n,d)));
 957
 958         }
 959         | Repeated_music                { $$ = $1; }
 960         | Simultaneous_music            { $$ = $1; }
 961         | Sequential_music              { $$ = $1; }
 962         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
 963                 $$ = MY_MAKE_MUSIC("TransposedMusic");
 964                 Music *p = $4;
 965                 Pitch from = *unsmob_pitch ($2);
 966                 Pitch to = *unsmob_pitch ($3);
 967
 968                 p->transpose (interval (from, to));
 969                 $$->set_mus_property ("element", p->self_scm ());
 970                 scm_gc_unprotect_object (p->self_scm ());
 971         }
 972         | APPLY embedded_scm Music  {
 973                 SCM ret = gh_call1 ($2, $3->self_scm ());
 974                 Music *m = unsmob_music (ret);
 975                 if (!m) {
 976                         THIS->parser_error ("\\apply must return a Music");
 977                         m = MY_MAKE_MUSIC("Music");
 978                         }
 979                 $$ = m;
 980         }
 981         | NOTES
 982                 { THIS->lexer_->push_note_state (); }
 983         Music
 984                 { $$ = $3;
 985                   THIS->lexer_->pop_state ();
 986                 }
 987         | FIGURES
 988                 { THIS->lexer_->push_figuredbass_state (); }
 989         Music
 990                 {
 991                   Music * chm = MY_MAKE_MUSIC("UntransposableMusic");
 992                   chm->set_mus_property ("element", $3->self_scm ());
 993                   $$ = chm;
 994                   scm_gc_unprotect_object ($3->self_scm());
 995
 996                   THIS->lexer_->pop_state ();
 997         }
 998         | CHORDS
 999                 { THIS->lexer_->push_chord_state (); }
1000         Music
1001                 {
1002                   Music * chm = MY_MAKE_MUSIC("UnrelativableMusic");
1003                   chm->set_mus_property ("element", $3->self_scm ());
1004                   scm_gc_unprotect_object ($3->self_scm());
1005                   $$ = chm;
1006
1007                   THIS->lexer_->pop_state ();
1008         }
1009         | LYRICS
1010                 { THIS->lexer_->push_lyric_state (); }
1011         Music
1012                 {
1013                   $$ = $3;
1014                   THIS->lexer_->pop_state ();
1015         }
1016         | relative_music        { $$ = $1; }
1017         | re_rhythmed_music     { $$ = $1; }
1018         | part_combined_music   { $$ = $1; }
1019         ;
1020
1021 relative_music:
1022         RELATIVE absolute_pitch Music {
1023                 Music * p = $3;
1024                 Pitch pit = *unsmob_pitch ($2);
1025                 $$ = MY_MAKE_MUSIC("RelativeOctaveMusic");
1026
1027                 $$->set_mus_property ("element", p->self_scm ());
1028                 scm_gc_unprotect_object (p->self_scm ());
1029
1030                 $$->set_mus_property ("last-pitch", p->to_relative_octave (pit).smobbed_copy ());
1031
1032         }
1033         ;
1034
1035 re_rhythmed_music:
1036         ADDLYRICS Music Music {
1037         Music*l =MY_MAKE_MUSIC("LyricCombineMusic");
1038           l->set_mus_property ("elements", gh_list ($2->self_scm (), $3->self_scm (), SCM_UNDEFINED));
1039           scm_gc_unprotect_object ($3->self_scm ());
1040           scm_gc_unprotect_object ($2->self_scm ());
1041           $$ = l;
1042         }
1043         ;
1044
1045 part_combined_music:
1046         PARTCOMBINE STRING Music Music {
1047         Music * p= MY_MAKE_MUSIC("PartCombineMusic");
1048                 p->set_mus_property ("what", $2);
1049                 p->set_mus_property ("elements", gh_list ($3->self_scm (),$4->self_scm (), SCM_UNDEFINED));
1050
1051                 scm_gc_unprotect_object ($3->self_scm ());
1052                 scm_gc_unprotect_object ($4->self_scm ());
1053
1054                 $$ = p;
1055         }
1056         ;
1057
1058 translator_change:
1059         TRANSLATOR STRING '=' STRING  {
1060                 Music*t= MY_MAKE_MUSIC("TranslatorChange");
1061                 t-> set_mus_property ("change-to-type", $2);
1062                 t-> set_mus_property ("change-to-id", $4);
1063
1064                 $$ = t;
1065                 $$->set_spot (THIS->here_input ());
1066         }
1067         ;
1068
1069 property_def:
1070         simple_property_def
1071         | ONCE simple_property_def {
1072                 $$ = $2;
1073                 SCM e = $2->get_mus_property ("element");
1074                 unsmob_music (e)->set_mus_property ("once", SCM_BOOL_T);
1075         }
1076         ;
1077
1078 simple_property_def:
1079         PROPERTY STRING '.' STRING '='  scalar {
1080                 Music *t = set_property_music (scm_string_to_symbol ($4), $6);
1081                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1082
1083                 csm->set_mus_property ("element", t->self_scm ());
1084                 scm_gc_unprotect_object (t->self_scm ());
1085
1086                 $$ = csm;
1087                 $$->set_spot (THIS->here_input ());
1088
1089                 csm-> set_mus_property ("context-type", $2);
1090         }
1091         | PROPERTY STRING '.' STRING UNSET {
1092
1093                 Music *t = MY_MAKE_MUSIC("PropertyUnset");
1094                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1095
1096                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1097                 csm->set_mus_property ("element", t->self_scm ());
1098                 scm_gc_unprotect_object (t->self_scm ());
1099
1100                 $$ = csm;
1101                 $$->set_spot (THIS->here_input ());
1102
1103                 csm-> set_mus_property ("context-type", $2);
1104         }
1105         | PROPERTY STRING '.' STRING SET embedded_scm '=' embedded_scm {
1106                 bool autobeam
1107                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1108                 bool itc = internal_type_checking_global_b;
1109                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1110                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1111                 t->set_mus_property ("pop-first", SCM_BOOL_T);
1112                 if (autobeam)
1113                         internal_type_checking_global_b = false;
1114                 t->set_mus_property ("grob-property", $6);
1115                 if (autobeam)
1116                         internal_type_checking_global_b = itc;
1117                 t->set_mus_property ("grob-value", $8);
1118
1119                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1120                 csm->set_mus_property ("element", t->self_scm ());
1121                 scm_gc_unprotect_object (t->self_scm ());
1122                 $$ = csm;
1123                 $$->set_spot (THIS->here_input ());
1124
1125                 csm-> set_mus_property ("context-type", $2);
1126         }
1127         | PROPERTY STRING '.' STRING OVERRIDE
1128                 embedded_scm '=' embedded_scm
1129         {
1130                 /*
1131                         UGH UGH UGH UGH.
1132                 */
1133                 bool autobeam
1134                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1135                 bool itc = internal_type_checking_global_b;
1136
1137                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1138                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1139                 if (autobeam)
1140                         internal_type_checking_global_b = false;
1141                 t->set_mus_property ("grob-property", $6);
1142                 t->set_mus_property ("grob-value", $8);
1143                 if (autobeam)
1144                         internal_type_checking_global_b = itc;
1145
1146                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1147                 csm->set_mus_property ("element", t->self_scm ());
1148                 scm_gc_unprotect_object (t->self_scm ());
1149
1150                 $$ = csm;
1151                 $$->set_spot (THIS->here_input ());
1152
1153                 csm-> set_mus_property ("context-type", $2);
1154
1155         }
1156         | PROPERTY STRING '.' STRING REVERT embedded_scm {
1157                 Music *t = MY_MAKE_MUSIC("RevertProperty");
1158                 bool autobeam
1159                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1160                 bool itc = internal_type_checking_global_b;
1161
1162                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1163                 if (autobeam)
1164                         internal_type_checking_global_b = false;
1165                 t->set_mus_property ("grob-property", $6);
1166                 if (autobeam)
1167                         internal_type_checking_global_b = itc;
1168
1169                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1170                 csm->set_mus_property ("element", t->self_scm ());
1171                 scm_gc_unprotect_object (t->self_scm ());
1172
1173                 $$ = csm;
1174                 $$->set_spot (THIS->here_input ());
1175
1176                 csm-> set_mus_property ("context-type", $2);
1177         }
1178         ;
1179
1180
1181 scalar:
1182         string          { $$ = $1; }
1183         | bare_int      { $$ = gh_int2scm ($1); }
1184         | embedded_scm  { $$ = $1; }
1185         | full_markup {  $$ = $1; }
1186         | DIGIT { $$ = gh_int2scm ($1); }
1187         ;
1188
1189
1190 event_chord:
1191         pre_events {
1192                 THIS->push_spot ();
1193         } /*cont */ simple_element post_events  {
1194                 SCM elts = $3-> get_mus_property ("elements");
1195
1196                 elts = gh_append3 (elts, scm_reverse_x ($1, SCM_EOL),
1197                                    scm_reverse_x ($4, SCM_EOL));
1198
1199                 $3-> set_mus_property ("elements", elts);
1200                 $$ = $3;
1201         }
1202         | command_element
1203         | note_chord_element
1204         ;
1205
1206
1207 note_chord_element:
1208         chord_body optional_notemode_duration post_events
1209         {
1210                 SCM dur = unsmob_duration ($2)->smobbed_copy();
1211                 SCM es = $1->get_mus_property ("elements");
1212                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1213
1214                 for (SCM s = es; gh_pair_p (s); s = gh_cdr (s))
1215                   unsmob_music (gh_car(s))->set_mus_property ("duration", dur);
1216                 es = gh_append2 (es, postevs);
1217
1218                 $1-> set_mus_property ("elements", es);
1219                 $$ = $1;
1220         }
1221         ;
1222
1223 chord_body:
1224         CHORD_OPEN chord_body_elements CHORD_CLOSE
1225         {
1226                 $$ = MY_MAKE_MUSIC("EventChord");
1227                 $$->set_mus_property ("elements",
1228                         scm_reverse_x ($2, SCM_EOL));
1229         }
1230         ;
1231
1232 chord_body_elements:
1233         /* empty */             { $$ = SCM_EOL; }
1234         | chord_body_elements chord_body_element {
1235                 $$ = gh_cons ($2->self_scm(), $1);
1236                 scm_gc_unprotect_object ($2->self_scm());
1237         }
1238         ;
1239
1240 chord_body_element:
1241         pitch exclamations questions post_events
1242         {
1243                 Music * n = MY_MAKE_MUSIC("NoteEvent");
1244                 n->set_mus_property ("pitch", $1);
1245                 if ($3 % 2)
1246                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1247                 if ($2 % 2 || $3 % 2)
1248                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1249
1250                 SCM arts = scm_reverse_x ($4, SCM_EOL);
1251                 n->set_mus_property ("articulations", arts);
1252
1253                 $$ = n;
1254         }
1255         ;
1256
1257 command_element:
1258         command_req {
1259                 $$ = MY_MAKE_MUSIC("EventChord");
1260                 $$->set_mus_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1261           scm_gc_unprotect_object ($1->self_scm());
1262
1263                 $$-> set_spot (THIS->here_input ());
1264                 $1-> set_spot (THIS->here_input ());
1265         }
1266         | E_LEFTSQUARE {
1267                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1268                 l->set_mus_property ("span-direction", gh_int2scm (START));
1269                 l->set_spot (THIS->here_input ());
1270
1271                 $$ = MY_MAKE_MUSIC("EventChord");
1272                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1273                 scm_gc_unprotect_object (l->self_scm());
1274                 $$->set_spot (THIS->here_input ());
1275         }
1276         | E_RIGHTSQUARE {
1277                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1278                 l->set_mus_property ("span-direction", gh_int2scm (STOP));
1279                 l->set_spot (THIS->here_input ());
1280
1281                 $$ = MY_MAKE_MUSIC("EventChord");
1282                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1283                 $$->set_spot (THIS->here_input ());
1284                 scm_gc_unprotect_object (l->self_scm());
1285         }
1286         | E_BACKSLASH {
1287                 $$ = MY_MAKE_MUSIC("VoiceSeparator");
1288                 $$->set_spot (THIS->here_input ());
1289         }
1290         | '|'      {
1291
1292                 $$ = MY_MAKE_MUSIC("BarCheck");
1293                 $$->set_spot (THIS->here_input ());
1294         }
1295         | BAR STRING                    {
1296                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1297
1298                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1299                 csm->set_mus_property ("element", t->self_scm ());
1300                 scm_gc_unprotect_object (t->self_scm ());
1301
1302                 $$ = csm;
1303                 $$->set_spot (THIS->here_input ());
1304
1305                 csm->set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1306         }
1307         | PARTIAL duration_length       {
1308                 Moment m = - unsmob_duration ($2)->get_length ();
1309                 Music * p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1310
1311                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1312                 sp->set_mus_property ("element", p->self_scm ());
1313                 scm_gc_unprotect_object (p->self_scm ());
1314
1315                 $$ =sp ;
1316                 sp-> set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1317         }
1318         | CLEF STRING  {
1319                 static SCM proc ;
1320                 if (!proc)
1321                         proc = scm_c_eval_string ("make-clef-set");
1322
1323                 SCM result = scm_call_1 (proc, $2);
1324                 scm_gc_protect_object (result);
1325                 $$ = unsmob_music (result);
1326         }
1327         | TIME_T fraction  {
1328                 static SCM proc;
1329                 if (!proc)
1330                         proc = scm_c_eval_string ("make-time-signature-set");
1331
1332                 SCM result = scm_apply_2   (proc, gh_car ($2), gh_cdr ($2), SCM_EOL);
1333                 scm_gc_protect_object (result);
1334                 $$ = unsmob_music (result);
1335         }
1336         ;
1337
1338 command_req:
1339         shorthand_command_req   { $$ = $1; }
1340         | verbose_command_req   { $$ = $1; }
1341         ;
1342
1343 shorthand_command_req:
1344         extender_req {
1345                 $$ = $1;
1346         }
1347         | hyphen_req {
1348                 $$ = $1;
1349         }
1350         | '~'   {
1351                 $$ = MY_MAKE_MUSIC("TieEvent");
1352         }
1353         | '['           {
1354                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1355                 b->set_mus_property ("span-direction", gh_int2scm (START));
1356                 $$ = b;
1357
1358                 THIS->last_beam_start_ = b->self_scm ();
1359         }
1360         | ']'           {
1361                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1362                 b->set_mus_property ("span-direction", gh_int2scm (STOP));
1363                 $$ = b;
1364         }
1365         | BREATHE {
1366                 $$ = MY_MAKE_MUSIC("BreathingSignEvent");
1367         }
1368         | E_TILDE {
1369                 $$ = MY_MAKE_MUSIC("PorrectusEvent");
1370         }
1371         ;
1372
1373 verbose_command_req:
1374         MARK DEFAULT  {
1375                 Music * m = MY_MAKE_MUSIC("MarkEvent");
1376                 $$ = m;
1377         }
1378         | MARK scalar {
1379                 Music *m = MY_MAKE_MUSIC("MarkEvent");
1380                 m->set_mus_property ("label", $2);
1381                 $$ = m;
1382         }
1383         | SKIP duration_length {
1384                 Music * skip = MY_MAKE_MUSIC("SkipEvent");
1385                 skip->set_mus_property ("duration", $2);
1386
1387                 $$ = skip;
1388         }
1389         | tempo_event {
1390                 $$ = $1;
1391         }
1392         | KEY DEFAULT {
1393                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1394                 $$ = key;
1395         }
1396         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1397                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1398
1399                 key->set_mus_property ("pitch-alist", $3);
1400                 key->set_mus_property ("tonic", Pitch (0,0,0).smobbed_copy());
1401                 ((Music*)key)->transpose (* unsmob_pitch ($2));
1402
1403                 $$ = key;
1404         }
1405         ;
1406
1407 post_events:
1408         /* empty */ {
1409                 $$ = SCM_EOL;
1410         }
1411         | post_events post_event {
1412                 $2->set_spot (THIS->here_input ());
1413                 $$ = gh_cons ($2->self_scm(), $$);
1414                 scm_gc_unprotect_object ($2->self_scm());
1415         }
1416         ;
1417
1418 post_event:
1419         verbose_event
1420         | event_with_dir
1421         | close_event
1422         | string_event
1423         ;
1424
1425 string_event:
1426         E_UNSIGNED {
1427                 Music * s = MY_MAKE_MUSIC("StringNumberEvent");
1428                 s->set_mus_property ("string-number",  gh_int2scm($1));
1429                 s->set_spot (THIS->here_input ());
1430                 $$ = s;
1431         }
1432         ;
1433
1434
1435 event_that_take_dir:
1436         gen_text_def
1437         | verbose_event
1438         | close_event
1439         | open_event
1440         | '['  {
1441                 Music * m = MY_MAKE_MUSIC ("NewBeamEvent");
1442                 m->set_spot (THIS->here_input());
1443                 m->set_mus_property ("span-direction" , gh_int2scm (START));
1444                 $$ = m;
1445         }
1446         | ']'  {
1447                 Music * m = MY_MAKE_MUSIC ("NewBeamEvent");
1448                 m->set_spot (THIS->here_input());
1449                 m->set_mus_property ("span-direction" , gh_int2scm (STOP));
1450                 $$ = m;
1451         }
1452         | '~' {
1453                 Music * m = MY_MAKE_MUSIC ("NewTieEvent");
1454                 m->set_spot (THIS->here_input());
1455                 $$ = m;
1456         }
1457         | script_abbreviation {
1458                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1459                 Music *a = MY_MAKE_MUSIC("ArticulationEvent");
1460                 if (gh_string_p (s))
1461                         a->set_mus_property ("articulation-type", s);
1462                 else THIS->parser_error (_ ("Expecting string as script definition"));
1463                 $$ = a;
1464         }
1465         ;
1466
1467 event_with_dir:
1468         script_dir event_that_take_dir  {
1469                 $2->set_mus_property ("direction", gh_int2scm ($1));
1470                 $$ = $2;
1471         }
1472         ;
1473
1474 verbose_event:
1475         EVENT_IDENTIFIER        {
1476                 $$ = unsmob_music ($1);
1477         }
1478         | tremolo_type  {
1479                Music * a = MY_MAKE_MUSIC("TremoloEvent");
1480                a->set_spot (THIS->here_input ());
1481                a->set_mus_property ("tremolo-type", gh_int2scm ($1));
1482                $$ = a;
1483         }
1484         ;
1485
1486 sup_quotes:
1487         '\'' {
1488                 $$ = 1;
1489         }
1490         | sup_quotes '\'' {
1491                 $$ ++;
1492         }
1493         ;
1494
1495 sub_quotes:
1496         ',' {
1497                 $$ = 1;
1498         }
1499         | sub_quotes ',' {
1500                 $$ ++ ;
1501         }
1502         ;
1503
1504 steno_pitch:
1505         NOTENAME_PITCH  {
1506                 $$ = $1;
1507         }
1508         | NOTENAME_PITCH sup_quotes     {
1509                 Pitch p = *unsmob_pitch ($1);
1510                 p = p.transposed (Pitch ($2,0,0));
1511                 $$ = p.smobbed_copy ();
1512         }
1513         | NOTENAME_PITCH sub_quotes      {
1514                 Pitch p =* unsmob_pitch ($1);
1515                 p = p.transposed (Pitch (-$2,0,0));
1516                 $$ = p.smobbed_copy ();
1517         }
1518         ;
1519
1520 /*
1521 ugh. duplication
1522 */
1523
1524 steno_tonic_pitch:
1525         TONICNAME_PITCH {
1526                 $$ = $1;
1527         }
1528         | TONICNAME_PITCH sup_quotes    {
1529                 Pitch p = *unsmob_pitch ($1);
1530                 p = p.transposed (Pitch ($2,0,0));
1531                 $$ = p.smobbed_copy ();
1532         }
1533         | TONICNAME_PITCH sub_quotes     {
1534                 Pitch p =* unsmob_pitch ($1);
1535
1536                 p = p.transposed (Pitch (-$2,0,0));
1537                 $$ = p.smobbed_copy ();
1538         }
1539         ;
1540
1541 pitch:
1542         steno_pitch {
1543                 $$ = $1;
1544         }
1545         | explicit_pitch {
1546                 $$ = $1;
1547         }
1548         ;
1549
1550 pitch_also_in_chords:
1551         pitch
1552         | steno_tonic_pitch
1553         ;
1554
1555 explicit_pitch:
1556         PITCH embedded_scm {
1557                 $$ = $2;
1558                 if (!unsmob_pitch ($2)) {
1559                         THIS->parser_error (_f ("Expecting musical-pitch value", 3));
1560                          $$ = Pitch ().smobbed_copy ();
1561                 }
1562         }
1563         ;
1564
1565 verbose_duration:
1566         DURATION embedded_scm   {
1567                 $$ = $2;
1568                 if (!unsmob_duration ($2))
1569                 {
1570                         THIS->parser_error (_ ("Must have duration object"));
1571                         $$ = Duration ().smobbed_copy ();
1572                 }
1573         }
1574         ;
1575
1576 extender_req:
1577         EXTENDER {
1578                 if (!THIS->lexer_->lyric_state_b ())
1579                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1580                 $$ = MY_MAKE_MUSIC("ExtenderEvent");
1581         }
1582         ;
1583
1584 hyphen_req:
1585         HYPHEN {
1586                 if (!THIS->lexer_->lyric_state_b ())
1587                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1588                 $$ = MY_MAKE_MUSIC("HyphenEvent");
1589         }
1590         ;
1591
1592 close_event:
1593         close_event_parens {
1594                 $$ = $1;
1595                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (START))
1596 ;
1597         }
1598         ;
1599
1600 close_event_parens:
1601         '('     {
1602                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1603                 $$ = s;
1604                 s->set_spot (THIS->here_input());
1605         }
1606         | E_OPEN        {
1607                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1608                 $$ = s;
1609                 s->set_spot (THIS->here_input());
1610         }
1611         | E_SMALLER {
1612                 Music *s =MY_MAKE_MUSIC("CrescendoEvent");
1613                 $$ = s;
1614                 s->set_spot (THIS->here_input());
1615         }
1616         | E_BIGGER {
1617                 Music *s =MY_MAKE_MUSIC("DecrescendoEvent");
1618                 $$ = s;
1619                 s->set_spot (THIS->here_input());
1620         }
1621         ;
1622
1623
1624 open_event:
1625         open_event_parens {
1626                 $$ = $1;
1627                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (STOP))
1628 ;
1629         }
1630         ;
1631
1632 open_event_parens:
1633         E_EXCLAMATION   {
1634                 Music *s =  MY_MAKE_MUSIC("CrescendoEvent");
1635                 s->set_spot (THIS->here_input());
1636
1637                 $$ = s;
1638         }
1639         | ')'   {
1640                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1641                 $$ = s;
1642                 s->set_spot (THIS->here_input());
1643
1644         }
1645         | E_CLOSE       {
1646                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1647                 $$ = s;
1648                 s->set_mus_property ("span-type", scm_makfrom0str ( "phrasing-slur"));
1649                 s->set_spot (THIS->here_input());
1650         }
1651         ;
1652
1653 gen_text_def:
1654         embedded_scm {
1655                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1656                 t->set_mus_property ("text", $1);
1657                 t->set_spot (THIS->here_input ());
1658                 $$ = t;
1659         }
1660         | full_markup {
1661                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1662                 t->set_mus_property ("text", $1);
1663                 t->set_spot (THIS->here_input ());
1664                 $$ = t;
1665         }
1666         | string {
1667                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1668                 t->set_mus_property ("text", make_simple_markup ($1));
1669                 t->set_spot (THIS->here_input ());
1670                 $$ = t;
1671
1672         }
1673         | DIGIT {
1674                 Music * t = MY_MAKE_MUSIC("FingerEvent");
1675                 t->set_mus_property ("digit",  gh_int2scm ($1));
1676                 t->set_spot (THIS->here_input ());
1677                 $$ = t;
1678         }
1679         ;
1680
1681 script_abbreviation:
1682         '^'             {
1683                 $$ = scm_makfrom0str ("Hat");
1684         }
1685         | '+'           {
1686                 $$ = scm_makfrom0str ("Plus");
1687         }
1688         | '-'           {
1689                 $$ = scm_makfrom0str ("Dash");
1690         }
1691         | '|'           {
1692                 $$ = scm_makfrom0str ("Bar");
1693         }
1694         | '>'           {
1695                 $$ = scm_makfrom0str ("Larger");
1696         }
1697         | '.'           {
1698                 $$ = scm_makfrom0str ("Dot");
1699         }
1700         | '_' {
1701                 $$ = scm_makfrom0str ("Underscore");
1702         }
1703         ;
1704
1705 script_dir:
1706         '_'     { $$ = DOWN; }
1707         | '^'   { $$ = UP; }
1708         | '-'   { $$ = CENTER; }
1709         ;
1710
1711 pre_events:
1712         /* empty */ {
1713                 $$ = SCM_EOL;
1714         }
1715         | pre_events open_event {
1716                 $$ = gh_cons ($2->self_scm(), $$);
1717                 scm_gc_unprotect_object ($2->self_scm());
1718         }
1719         ;
1720
1721 absolute_pitch:
1722         steno_pitch     {
1723                 $$ = $1;
1724         }
1725         ;
1726
1727 duration_length:
1728         multiplied_duration {
1729                 $$ = $1;
1730         }
1731         | verbose_duration {
1732                 $$ = $1;
1733         }
1734         ;
1735
1736 optional_notemode_duration:
1737         {
1738                 Duration dd = THIS->default_duration_;
1739                 $$ = dd.smobbed_copy ();
1740
1741                 THIS->beam_check ($$);
1742         }
1743         | multiplied_duration   {
1744                 $$ = $1;
1745                 THIS->default_duration_ = *unsmob_duration ($$);
1746
1747                 THIS->beam_check ($$);
1748         }
1749         | verbose_duration {
1750                 $$ = $1;
1751                 THIS->default_duration_ = *unsmob_duration ($$);
1752         }
1753         ;
1754
1755 steno_duration:
1756         bare_unsigned dots              {
1757                 int l = 0;
1758                 if (!is_duration_b ($1))
1759                         THIS->parser_error (_f ("not a duration: %d", $1));
1760                 else
1761                         l =  intlog2 ($1);
1762
1763                 $$ = Duration (l, $2).smobbed_copy ();
1764         }
1765         | DURATION_IDENTIFIER dots      {
1766                 Duration *d =unsmob_duration ($1);
1767                 Duration k (d->duration_log (),d->dot_count () + $2);
1768
1769                 *d = k;
1770                 $$ = $1;
1771         }
1772         ;
1773
1774
1775
1776
1777 multiplied_duration:
1778         steno_duration {
1779                 $$ = $1;
1780         }
1781         | multiplied_duration '*' bare_unsigned {
1782                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1783         }
1784         | multiplied_duration '*' FRACTION {
1785                 Rational  m (gh_scm2int (ly_car ($3)), gh_scm2int (ly_cdr ($3)));
1786
1787                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1788         }
1789         ;
1790
1791 fraction:
1792         FRACTION { $$ = $1; }
1793         | UNSIGNED '/' UNSIGNED {
1794                 $$ = scm_cons (gh_int2scm ($1), gh_int2scm ($3));
1795         }
1796         ;
1797
1798 dots:
1799         /* empty */     {
1800                 $$ = 0;
1801         }
1802         | dots '.' {
1803                 $$ ++;
1804         }
1805         ;
1806
1807
1808 tremolo_type:
1809         ':'     {
1810                 $$ =0;
1811         }
1812         | ':' bare_unsigned {
1813                 if (!is_duration_b ($2))
1814                         THIS->parser_error (_f ("not a duration: %d", $2));
1815                 $$ = $2;
1816         }
1817         ;
1818
1819
1820
1821 /*****************************************************************
1822                 BASS FIGURES
1823 *****************************************************************/
1824 bass_number:
1825         DIGIT
1826         | UNSIGNED
1827         ;
1828
1829 bass_mod:
1830         '-'     { $$ = -1; }
1831         | '+'   { $$ = 1; }
1832         | '!'   { $$ = 0; }
1833         ;
1834
1835 bass_figure:
1836         FIGURE_SPACE {
1837                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1838                 $$ = bfr->self_scm();
1839                 scm_gc_unprotect_object ($$);
1840         }
1841         | bass_number  {
1842                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1843                 $$ = bfr->self_scm();
1844
1845                 bfr->set_mus_property ("figure", gh_int2scm ($1));
1846
1847                 scm_gc_unprotect_object ($$);
1848         }
1849         | bass_figure bass_mod {
1850                 Music *m = unsmob_music ($1);
1851                 if ($2) {
1852                         SCM salter =m->get_mus_property ("alteration");
1853                         int alter = gh_number_p ( salter) ? gh_scm2int (salter) : 0;
1854                         m->set_mus_property ("alteration",
1855                                 gh_int2scm (alter + $2));
1856                 } else {
1857                         m->set_mus_property ("alteration", gh_int2scm (0));
1858                 }
1859         }
1860         ;
1861
1862 br_bass_figure:
1863         '[' bass_figure {
1864                 $$ = $2;
1865                 unsmob_music ($$)->set_mus_property ("bracket-start", SCM_BOOL_T);
1866         }
1867         | bass_figure   {
1868                 $$ = $1;
1869         }
1870         | br_bass_figure ']' {
1871                 $$ = $1;
1872                 unsmob_music ($1)->set_mus_property ("bracket-stop", SCM_BOOL_T);
1873         }
1874         ;
1875
1876 figure_list:
1877         /**/            {
1878                 $$ = SCM_EOL;
1879         }
1880         | figure_list br_bass_figure {
1881                 $$ = scm_cons ($2, $1);
1882         }
1883         ;
1884
1885 figure_spec:
1886         FIGURE_OPEN figure_list FIGURE_CLOSE {
1887                 Music * m = MY_MAKE_MUSIC("EventChord");
1888                 $2 = scm_reverse_x ($2, SCM_EOL);
1889                 m->set_mus_property ("elements",  $2);
1890                 $$ = m->self_scm ();
1891         }
1892         ;
1893
1894
1895 optional_rest:
1896         /**/   { $$ = 0; }
1897         | REST { $$ = 1; }
1898         ;
1899
1900 simple_element:
1901         pitch exclamations questions optional_notemode_duration optional_rest {
1902
1903                 Input i = THIS->pop_spot ();
1904                 if (!THIS->lexer_->note_state_b ())
1905                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
1906
1907                 Music *n = 0;
1908                 if ($5)
1909                         n =  MY_MAKE_MUSIC("RestEvent");
1910                 else
1911                         n =  MY_MAKE_MUSIC("NoteEvent");
1912
1913                 n->set_mus_property ("pitch", $1);
1914                 n->set_mus_property ("duration", $4);
1915
1916
1917                 if ($3 % 2)
1918                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1919                 if ($2 % 2 || $3 % 2)
1920                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1921
1922                 Music *v = MY_MAKE_MUSIC("EventChord");
1923                 v->set_mus_property ("elements", scm_list_n (n->self_scm (), SCM_UNDEFINED));
1924                 scm_gc_unprotect_object (n->self_scm());
1925
1926                 v->set_spot (i);
1927                 n->set_spot (i);
1928                 $$ = v;
1929         }
1930         | figure_spec optional_notemode_duration {
1931                 Music * m = unsmob_music ($1);
1932                 Input i = THIS->pop_spot ();
1933                 m->set_spot (i);
1934                 for (SCM s = m->get_mus_property ("elements"); gh_pair_p (s); s = ly_cdr (s))
1935                 {
1936                         unsmob_music (ly_car (s))->set_mus_property ("duration", $2);
1937                 }
1938                 $$ = m;
1939         }
1940         | RESTNAME optional_notemode_duration           {
1941
1942                 Input i = THIS->pop_spot ();
1943                 Music * ev = 0;
1944                 if (ly_scm2string ($1) =="s") {
1945                         /* Space */
1946                         ev = MY_MAKE_MUSIC("SkipEvent");
1947                   }
1948                 else {
1949                         ev = MY_MAKE_MUSIC("RestEvent");
1950
1951                     }
1952                 ev->set_mus_property ("duration" ,$2);
1953                 ev->set_spot (i);
1954                 Music * velt = MY_MAKE_MUSIC("EventChord");
1955                 velt->set_mus_property ("elements", scm_list_n (ev->self_scm (),SCM_UNDEFINED));
1956                 velt->set_spot (i);
1957
1958                 $$ = velt;
1959         }
1960         | MULTI_MEASURE_REST optional_notemode_duration         {
1961                 THIS->pop_spot ();
1962
1963                 static SCM proc ;
1964                 if (!proc)
1965                         proc = scm_c_eval_string ("make-multi-measure-rest");
1966
1967                 SCM mus = scm_call_2 (proc, $2,
1968                         make_input (THIS->here_input()));
1969                 scm_gc_protect_object (mus);
1970                 $$ = unsmob_music (mus);
1971         }
1972         | STRING optional_notemode_duration     {
1973                 Input i = THIS->pop_spot ();
1974
1975                 Music * lreq = MY_MAKE_MUSIC("LyricEvent");
1976                 lreq->set_mus_property ("text", $1);
1977                 lreq->set_mus_property ("duration",$2);
1978                 lreq->set_spot (i);
1979                 Music * velt = MY_MAKE_MUSIC("EventChord");
1980                 velt->set_mus_property ("elements", scm_list_n (lreq->self_scm (), SCM_UNDEFINED));
1981
1982                 $$= velt;
1983         }
1984         | new_chord {
1985                 THIS->pop_spot ();
1986
1987                 if (!THIS->lexer_->chord_state_b ())
1988                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
1989                 $$ = unsmob_music ($1);
1990         }
1991         ;
1992
1993 new_chord:
1994         steno_tonic_pitch optional_notemode_duration   {
1995                 $$ = make_chord ($1, $2, SCM_EOL);
1996         }
1997         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
1998                 SCM its = scm_reverse_x ($4, SCM_EOL);
1999                 $$ = make_chord ($1, $2, gh_cons ($3, its));
2000         }
2001         ;
2002
2003 chord_items:
2004         /**/ {
2005                 $$ = SCM_EOL;
2006         }
2007         | chord_items chord_item {
2008                 $$ = gh_cons ($2, $$);
2009         }
2010         ;
2011
2012 chord_separator:
2013         CHORD_COLON {
2014                 $$ = ly_symbol2scm ("chord-colon");
2015         }
2016         | CHORD_CARET {
2017                 $$ = ly_symbol2scm ("chord-caret");
2018         }
2019         | CHORD_SLASH steno_tonic_pitch {
2020                 $$ = scm_list_n (ly_symbol2scm ("chord-slash"), $2, SCM_UNDEFINED);
2021         }
2022         | CHORD_BASS steno_tonic_pitch {
2023                 $$ = scm_list_n (ly_symbol2scm ("chord-bass"), $2, SCM_UNDEFINED);
2024         }
2025         ;
2026
2027 chord_item:
2028         chord_separator {
2029                 $$ = $1;
2030         }
2031         | step_numbers {
2032                 $$ = scm_reverse_x ($1, SCM_EOL);
2033         }
2034         | CHORD_MODIFIER  {
2035                 $$ = $1;
2036         }
2037         ;
2038
2039 step_numbers:
2040         step_number { $$ = gh_cons ($1, SCM_EOL); }
2041         | step_numbers '.' step_number {
2042                 $$ = gh_cons ($3, $$);
2043         }
2044         ;
2045
2046 step_number:
2047         bare_unsigned {
2048                 $$ = make_chord_step ($1, 0);
2049         }
2050         | bare_unsigned '+' {
2051                 $$ = make_chord_step ($1, 1);
2052         }
2053         | bare_unsigned CHORD_MINUS {
2054                 $$ = make_chord_step ($1,-1);
2055         }
2056         ;
2057
2058 /*
2059         UTILITIES
2060  */
2061 number_expression:
2062         number_expression '+' number_term {
2063                 $$ = scm_sum ($1, $3);
2064         }
2065         | number_expression '-' number_term {
2066                 $$ = scm_difference ($1, $3);
2067         }
2068         | number_term
2069         ;
2070
2071 number_term:
2072         number_factor {
2073                 $$ = $1;
2074         }
2075         | number_factor '*' number_factor {
2076                 $$ = scm_product ($1, $3);
2077         }
2078         | number_factor '/' number_factor {
2079                 $$ = scm_divide ($1, $3);
2080         }
2081         ;
2082
2083 number_factor:
2084         '-'  number_factor { /* %prec UNARY_MINUS */
2085                 $$ = scm_difference ($2, SCM_UNDEFINED);
2086         }
2087         | bare_number
2088         ;
2089
2090
2091 bare_number:
2092         UNSIGNED        {
2093                 $$ = gh_int2scm ($1);
2094         }
2095         | REAL          {
2096                 $$ = $1;
2097         }
2098         | NUMBER_IDENTIFIER             {
2099                 $$ = $1;
2100         }
2101         | REAL NUMBER_IDENTIFIER        {
2102                 $$ = gh_double2scm (gh_scm2double ($1) * gh_scm2double ($2));
2103         }
2104         | UNSIGNED NUMBER_IDENTIFIER    {
2105                 $$ = gh_double2scm ($1 * gh_scm2double ($2));
2106         }
2107         ;
2108
2109
2110 bare_unsigned:
2111         UNSIGNED {
2112                         $$ = $1;
2113         }
2114         | DIGIT {
2115                 $$ = $1;
2116         }
2117         ;
2118
2119 bare_int:
2120         bare_number {
2121                 if (scm_integer_p ($1) == SCM_BOOL_T)
2122                 {
2123                         int k = gh_scm2int ($1);
2124                         $$ = k;
2125                 } else
2126                 {
2127                         THIS->parser_error (_ ("need integer number arg"));
2128                         $$ = 0;
2129                 }
2130         }
2131         | '-' bare_int {
2132                 $$ = -$2;
2133         }
2134         ;
2135
2136
2137 string:
2138         STRING          {
2139                 $$ = $1;
2140         }
2141         | STRING_IDENTIFIER     {
2142                 $$ = $1;
2143         }
2144         | string '+' string {
2145                 $$ = scm_string_append (scm_list_n ($1, $3, SCM_UNDEFINED));
2146         }
2147         ;
2148
2149
2150 exclamations:
2151                 { $$ = 0; }
2152         | exclamations '!'      { $$ ++; }
2153         ;
2154
2155 questions:
2156                 { $$ = 0; }
2157         | questions '?' { $$ ++; }
2158         ;
2159
2160
2161
2162 full_markup:
2163         MARKUP_IDENTIFIER {
2164                 $$ = $1;
2165         }
2166         | MARKUP
2167                 { THIS->lexer_->push_markup_state (); }
2168         markup
2169                 { $$ = $3;
2170                   THIS->lexer_->pop_state ();
2171                 }
2172         ;
2173
2174 markup:
2175         STRING {
2176                 $$ = make_simple_markup ($1);
2177         }
2178         | MARKUP_HEAD_MARKUP0 markup {
2179                 $$ = scm_list_n ($1, $2, SCM_UNDEFINED);
2180         }
2181         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2182                 $$ = scm_list_n ($1, $2, $3, SCM_UNDEFINED);
2183         }
2184         | MARKUP_HEAD_SCM0_MARKUP1 SCM_T markup {
2185                 $$  = scm_list_n ($1, $2, $3, SCM_UNDEFINED);
2186         }
2187         | markup_line {
2188                 $$ = $1;
2189         }
2190         | MARKUP_HEAD_LIST0 markup_list {
2191                 $$ = scm_list_n ($1,$2, SCM_UNDEFINED);
2192         }
2193         | MARKUP_HEAD_SCM0 embedded_scm {
2194                 $$ = scm_list_n ($1, $2, SCM_UNDEFINED);
2195         }
2196         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm markup {
2197                 $$ = scm_list_n ($1, $2, $3, $4, SCM_UNDEFINED);
2198         }
2199         | MARKUP_IDENTIFIER {
2200                 $$ = $1;
2201         }
2202
2203         ;
2204
2205 markup_list:
2206         CHORD_OPEN markup_list_body CHORD_CLOSE { $$ = scm_reverse_x ($2, SCM_EOL); }
2207         ;
2208
2209 markup_line:
2210         '{' markup_list_body '}' {
2211                 static SCM line ;
2212                 if (!line)
2213                         line = scm_c_eval_string ("line-markup");
2214
2215                 $$ = scm_list_n (line, scm_reverse_x ($2, SCM_EOL), SCM_UNDEFINED);
2216         }
2217         ;
2218
2219 markup_list_body:
2220         /**/ {  $$ = SCM_EOL; }
2221         | markup_list_body markup {
2222                 $$ = gh_cons ($2, $1) ;
2223         }
2224         ;
2225
2226
2227 %%
2228
2229 void
2230 My_lily_parser::set_yydebug (bool )
2231 {
2232 #if 0
2233         yydebug = 1;
2234 #endif
2235 }
2236
2237 extern My_lily_parser * current_parser;
2238
2239 void
2240 My_lily_parser::do_yyparse ()
2241 {
2242         current_parser = this;;
2243         yyparse ((void*)this);
2244 }
2245
2246
2247 /*
2248 Should make this optional?    It will also complain when you do
2249
2250         [s4]
2251
2252 which is entirely legitimate.
2253
2254 Or we can scrap it. Barchecks should detect wrong durations, and
2255 skipTypesetting speeds it up a lot.
2256 */
2257
2258 void
2259 My_lily_parser::beam_check (SCM dur)
2260 {
2261   Duration *d = unsmob_duration (dur);
2262   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2263     {
2264       Music * m = unsmob_music (last_beam_start_);
2265       m->origin ()->warning (_("Suspect duration found following this beam"));
2266     }
2267   last_beam_start_ = SCM_EOL;
2268 }
2269
2270
2271
2272 bool
2273 markup_p (SCM x)
2274 {
2275         return gh_pair_p (x)
2276                 && SCM_BOOL_F != scm_object_property (gh_car (x), ly_symbol2scm ("markup-signature"));
2277 }
2278 /*
2279 It is a little strange, to have this function in this file, but
2280 otherwise, we have to import music classes into the lexer.
2281
2282 */
2283 int
2284 My_lily_lexer::try_special_identifiers (SCM * destination, SCM sid)
2285 {
2286         if (gh_string_p (sid)) {
2287                 *destination = sid;
2288                 return STRING_IDENTIFIER;
2289         } else if (gh_number_p (sid)) {
2290                 *destination = sid;
2291                 return NUMBER_IDENTIFIER;
2292         } else if (unsmob_translator_def (sid)) {
2293                 *destination = unsmob_translator_def (sid)->clone_scm();
2294                 return TRANSLATOR_IDENTIFIER;
2295         } else if (unsmob_score (sid)) {
2296                 Score *sc =  new Score (*unsmob_score (sid));
2297                 *destination =sc->self_scm ();
2298                 return SCORE_IDENTIFIER;
2299         } else if (Music * mus =unsmob_music (sid)) {
2300                 *destination = unsmob_music (sid)->clone ()->self_scm();
2301                 unsmob_music (*destination)->
2302                         set_mus_property ("origin", make_input (last_input_));
2303                 return dynamic_cast<Event*> (mus)
2304                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2305         } else if (unsmob_duration (sid)) {
2306                 *destination = unsmob_duration (sid)->smobbed_copy();
2307                 return DURATION_IDENTIFIER;
2308         } else if (unsmob_music_output_def (sid)) {
2309                 Music_output_def *p = unsmob_music_output_def (sid);
2310                 p = p->clone ();
2311
2312                 *destination = p->self_scm();
2313                 return MUSIC_OUTPUT_DEF_IDENTIFIER;
2314         } else if (new_markup_p (sid)) {
2315                 *destination = sid;
2316                 return MARKUP_IDENTIFIER;
2317         }
2318
2319         return -1;
2320 }