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--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9                  Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13
  14 TODO:
  15
  16 * The rules for who is protecting what are very shady. Uniformise
  17   this.
  18
  19 * There are too many lexical modes?
  20
  21 */
  22
  23 #include <ctype.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26
  27
  28 #include "book.hh"
  29
  30 #include "context-def.hh"
  31 #include "dimensions.hh"
  32 #include "event.hh"
  33 #include "file-path.hh"
  34 #include "input-smob.hh"
  35 #include "input.hh"
  36 #include "lily-guile.hh"
  37 #include "lilypond-input-version.hh"
  38 #include "ly-module.hh"
  39 #include "main.hh"
  40 #include "misc.hh"
  41 #include "music-list.hh"
  42 #include "music-sequence.hh"
  43 #include "lily-lexer.hh"
  44 #include "lily-parser.hh"
  45 #include "paper-book.hh"
  46 #include "output-def.hh"
  47 #include "scm-hash.hh"
  48 #include "scm-option.hh"
  49 #include "score.hh"
  50 #include "text-item.hh"
  51 #include "warn.hh"
  52
  53 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  54
  55 Music *property_op_to_music (SCM op);
  56 Music *context_spec_music (SCM type, SCM id, Music *m, SCM ops);
  57 SCM get_next_unique_context_id ();
  58 SCM get_next_unique_lyrics_context_id ();
  59
  60 #define YYERROR_VERBOSE 1
  61
  62 #define YYPARSE_PARAM my_lily_parser
  63 #define YYLEX_PARAM my_lily_parser
  64 #define THIS\
  65         ((Lily_parser *) my_lily_parser)
  66
  67 #define yyerror THIS->parser_error
  68
  69 /* Add symbols to the TAGS field of a music object.  */
  70
  71 void
  72 tag_music (Music *m, SCM tag, Input ip)
  73 {
  74         SCM tags = m->get_property ("tags");
  75         if (scm_is_symbol (tag))
  76                 tags = scm_cons (tag, tags);
  77         else if (ly_c_list_p (tag))
  78                 tags = ly_append2 (tag, tags);
  79         else
  80                 ip.warning (_ ("Tag must be symbol or list of symbols."));
  81
  82         m->set_property ("tags", tags);
  83 }
  84
  85 bool
  86 is_regular_identifier (SCM id)
  87 {
  88   String str = ly_scm2string (id);
  89   char const *s = str.to_str0 ();
  90
  91   bool v = true;
  92 #if 0
  93   isalpha (*s);
  94   s++;
  95 #endif
  96   while (*s && v)
  97    {
  98         v = v && isalnum (*s);
  99         s++;
 100    }
 101   return v;
 102 }
 103
 104
 105 SCM
 106 get_first_context_id (SCM type, Music *m)
 107 {
 108         SCM id = m->get_property ("context-id");
 109         if (SCM_BOOL_T == scm_equal_p (m->get_property ("context-type"), type)
 110             && scm_is_string (m->get_property ("context-id"))
 111             && scm_c_string_length (id) > 0)
 112         {
 113                 return id;
 114         }
 115         return SCM_EOL;
 116 }
 117
 118 SCM
 119 make_simple_markup (SCM encoding, SCM a)
 120 {
 121         SCM simple = ly_scheme_function ("simple-markup");
 122         if (scm_is_symbol (encoding))
 123                 return scm_list_3 (ly_scheme_function ("encoded-simple-markup"),
 124                            encoding, a);
 125         return scm_list_2 (simple, a);
 126 }
 127
 128 bool
 129 is_duration (int t)
 130 {
 131   return t && t == 1 << intlog2 (t);
 132 }
 133
 134 void
 135 set_music_properties (Music *p, SCM a)
 136 {
 137   for (SCM k = a; scm_is_pair (k); k = scm_cdr (k))
 138         p->internal_set_property (scm_caar (k), scm_cdar (k));
 139 }
 140
 141 SCM
 142 make_chord_step (int step, int alter)
 143 {
 144         if (step == 7)
 145                 alter += FLAT;
 146
 147         while (step < 0)
 148                 step += 7;
 149         Pitch m ((step -1) / 7, (step - 1) % 7, alter);
 150         return m.smobbed_copy ();
 151 }
 152
 153
 154 SCM
 155 make_chord (SCM pitch, SCM dur, SCM modification_list)
 156 {
 157         SCM chord_ctor = ly_scheme_function ("construct-chord");
 158         SCM ch = scm_call_3 (chord_ctor, pitch, dur, modification_list);
 159         scm_gc_protect_object (ch);
 160         return ch;
 161 }
 162
 163 /* Todo: actually also use apply iso. call too ...  */
 164 bool
 165 ly_input_procedure_p (SCM x)
 166 {
 167         return ly_c_procedure_p (x)
 168                 || (scm_is_pair (x) && ly_c_procedure_p (scm_car (x)));
 169 }
 170
 171 Music*
 172 set_property_music (SCM sym, SCM value)
 173 {
 174         Music *p = MY_MAKE_MUSIC ("PropertySet");
 175         p->set_property ("symbol", sym);
 176         p->set_property ("value", value);
 177         return p;
 178 }
 179
 180 Music*
 181 make_music_relative (Pitch start, Music *music)
 182 {
 183         Music *relative = MY_MAKE_MUSIC ("RelativeOctaveMusic");
 184         relative->set_property ("element", music->self_scm ());
 185
 186         Pitch last = music->to_relative_octave (start);
 187         if (lily_1_8_relative)
 188                 music->set_property ("last-pitch", last.smobbed_copy ());
 189         return relative;
 190 }
 191
 192 Music*
 193 make_lyric_combine_music (SCM name, Music *music)
 194 {
 195         Music *combine = MY_MAKE_MUSIC ("NewLyricCombineMusic");
 196         combine->set_property ("element", music->self_scm ());
 197         combine->set_property ("associated-context", name);
 198         return combine;
 199 }
 200
 201 %}
 202
 203 /* We use SCMs to do strings, because it saves us the trouble of
 204 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 205 of the parse stack onto the heap. */
 206
 207 %left ADDLYRICS
 208
 209 %union {
 210         Book *book;
 211         Output_def *outputdef;
 212         SCM scm;
 213         String *string;
 214         Music *music;
 215         Score *score;
 216         int i;
 217 }
 218 %{
 219
 220 int
 221 yylex (YYSTYPE *s, void *v)
 222 {
 223         Lily_parser *pars = (Lily_parser*) v;
 224         Lily_lexer *lex = pars->lexer_;
 225
 226         lex->lexval = (void*) s;
 227         lex->prepare_for_next_token ();
 228         return lex->yylex ();
 229 }
 230
 231
 232 %}
 233
 234 %expect 3
 235
 236 /*
 237   Three shift/reduce problems:
 238
 239 2. \markup identifier.
 240
 241   (what? --hwn)
 242
 243 3. \markup { }
 244
 245   (what? --hwn)
 246
 247
 248 4.  \repeat
 249         \repeat .. \alternative
 250
 251
 252     \repeat { \repeat .. \alternative }
 253
 254 or
 255
 256     \repeat { \repeat } \alternative
 257
 258 )
 259  */
 260
 261
 262 %pure_parser
 263
 264 %token ACCEPTS
 265 %token ADDQUOTE
 266 %token LYRICSTO
 267 %token ALIAS
 268 %token ALTERNATIVE
 269 %token BAR
 270 %token BOOK
 271 %token CHANGE
 272 %token CHORDMODIFIERS
 273 %token CHORDS
 274 %token CHORDMODE
 275 %token DOUBLE_ANGLE_OPEN
 276 %token DOUBLE_ANGLE_CLOSE
 277 %token CLEF
 278 %token COMMANDSPANREQUEST
 279 %token CONSISTS
 280 %token CONTEXT
 281 %token DEFAULT
 282 %token DENIES
 283 %token DESCRIPTION
 284 %token EXTENDER
 285 %token FIGURES
 286 %token FIGUREMODE
 287 %token FIGURE_OPEN FIGURE_CLOSE
 288 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 289 %token GROBDESCRIPTIONS
 290 %token HEADER
 291 %token HYPHEN
 292 %token INVALID
 293 %token KEY
 294 %token LAYOUT
 295 %token LYRICS
 296 %token LYRICMODE
 297 %token MARK
 298 %token MIDI
 299 %token MULTI_MEASURE_REST
 300 %token NAME
 301 %token NEWCONTEXT
 302 %token NOTEMODE
 303 %token OBJECTID
 304 %token OCTAVE
 305 %token ONCE
 306 %token OVERRIDE SET REVERT
 307 %token PAPER
 308 %token PARTIAL
 309 %token QUOTE
 310 %token RELATIVE
 311 %token REMOVE
 312 %token REPEAT
 313 %token REST
 314 %token SCM_T
 315 %token SCORE
 316 %token SEQUENTIAL
 317 %token ADDLYRICS
 318 %token SIMULTANEOUS
 319 %token SKIP
 320 %token SPANREQUEST
 321 %token TAG
 322 %token TEMPO
 323 %token TIMES
 324 %token TIME_T
 325 %token TRANSPOSE
 326 %token TRANSPOSITION
 327 %token TYPE
 328 %token UNSET
 329 %token WITH
 330 %token MARKUP
 331
 332 /* escaped */
 333 /* FIXME: this sucks.  The user will get to see these names:
 334     syntax error, unexpected E_CHAR:
 335                 \
 336                  %%
 337   */
 338
 339 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 340 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 341 %token E_BACKSLASH
 342 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 343 %token FIGURE_SPACE
 344
 345 %token <i>      DIGIT
 346 %token <i>      UNSIGNED
 347 %token <i> E_UNSIGNED
 348 %token <id>     IDENTIFIER
 349 %token <scm>    CHORDMODIFIER_PITCH
 350 %token <scm>    DRUM_PITCH
 351 %token <scm>    DURATION_IDENTIFIER
 352 %token <scm>    EVENT_IDENTIFIER
 353 %token <scm>    MUSIC_IDENTIFIER CONTEXT_DEF_IDENTIFIER
 354 %token <scm>    NOTENAME_PITCH
 355 %token <scm>    NUMBER_IDENTIFIER
 356 %token <scm>    OUTPUT_DEF_IDENTIFIER
 357 %token <scm>    RESTNAME
 358 %token <scm> LYRICS_STRING
 359 %token <scm>    SCM_T
 360 %token <scm>    SCORE_IDENTIFIER
 361 %token <scm>    STRING
 362 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 363 %token <scm>    TONICNAME_PITCH
 364 %token <scm>    CHORD_MODIFIER
 365 %token <scm>    FRACTION
 366 %token <scm>   REAL
 367 %token <scm> MARKUP_HEAD_EMPTY
 368 %token <scm> MARKUP_HEAD_MARKUP0
 369 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 370 %token <scm> MARKUP_HEAD_SCM0
 371 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 372 %token <scm> MARKUP_HEAD_SCM0_SCM1
 373 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 374 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 375 %token <scm> MARKUP_IDENTIFIER MARKUP_HEAD_LIST0
 376 %token <scm> MUSIC_FUNCTION
 377 %token <scm> MUSIC_FUNCTION_MUSIC
 378 %token <scm> MUSIC_FUNCTION_MUSIC_MUSIC
 379 %token <scm> MUSIC_FUNCTION_SCM
 380 %token <scm> MUSIC_FUNCTION_SCM_SCM
 381 %token <scm> MUSIC_FUNCTION_SCM_MUSIC
 382 %token <scm> MUSIC_FUNCTION_SCM_MUSIC_MUSIC
 383 %token <scm> MUSIC_FUNCTION_SCM_SCM_MUSIC
 384 %token <scm> MUSIC_FUNCTION_MARKUP
 385 %token <scm> MUSIC_FUNCTION_MARKUP_MARKUP
 386 %token <scm> MUSIC_FUNCTION_MARKUP_MUSIC
 387 %token <scm> MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC
 388 %token <scm> MUSIC_FUNCTION_MARKUP_MARKUP_MUSIC
 389
 390 %token DRUMS
 391 %token DRUMMODE
 392
 393
 394 %type <book>    book_block book_body
 395 %type <i>       bare_int  bare_unsigned
 396 %type <i>       exclamations questions dots optional_rest
 397 %type <i>       script_dir
 398 %type <i>       sub_quotes sup_quotes
 399 %type <i>       tremolo_type
 400 %type <i>       bass_mod
 401
 402 %type <music>   Composite_music Simple_music Prefix_composite_music Generic_prefix_music
 403 %type <music>   Grouped_music_list
 404 %type <music>   Music Sequential_music Simultaneous_music
 405 %type <music>   Repeated_music
 406 %type <music>   command_req
 407 %type <music>   gen_text_def direction_less_event direction_reqd_event
 408 %type <music>   music_property_def context_change
 409 %type <music>   note_chord_element chord_body chord_body_element
 410 %type <music>   post_event tagged_post_event
 411 %type <music>   relative_music re_rhythmed_music
 412 %type <music>   simple_element event_chord command_element
 413 %type <music>   string_number_event
 414 %type <music>   toplevel_music
 415 %type <music>   tempo_event
 416
 417 %type <outputdef>       output_def_body output_def_head
 418 %type <outputdef> output_def paper_block
 419
 420 %type <scm>     Music_list
 421 %type <scm>     chord_body_elements
 422 %type <scm>     chord_item chord_items chord_separator new_chord
 423 %type <scm>     context_def_spec_block context_def_spec_body
 424 %type <scm>     context_mod context_def_mod optional_context_mod
 425 %type <scm>     context_prop_spec
 426 %type <scm>     direction_less_char
 427 %type <scm>     duration_length fraction
 428 %type <scm>     embedded_scm scalar
 429 %type <scm>     identifier_init
 430 %type <scm>     lilypond_header lilypond_header_body
 431 %type <scm>     new_lyrics
 432 %type <scm>     post_events
 433 %type <scm>     property_operation
 434 %type <scm>     script_abbreviation
 435 %type <scm>     simple_string
 436 %type <scm>     steno_pitch pitch absolute_pitch pitch_also_in_chords
 437 %type <scm>     steno_tonic_pitch
 438 %type <scm>     step_number step_numbers
 439 %type <scm>     string bare_number number_expression number_term number_factor
 440 %type <scm>     bass_number br_bass_figure bass_figure figure_list figure_spec
 441 %type <scm>     context_mod_list
 442 %type <scm>     octave_check
 443 %type <scm>     steno_duration optional_notemode_duration multiplied_duration
 444 %type <scm>     Generic_prefix_music_scm
 445 %type <scm>     lyric_element
 446 %type <scm>     Alternative_music
 447 %type <scm>     markup markup_line markup_list markup_list_body full_markup
 448 %type <scm>     mode_changing_head
 449 %type <scm>     mode_changing_head_with_context
 450 %type <scm>     object_id_setting
 451
 452 %type <score>   score_block score_body
 453
 454
 455 %left '-' '+'
 456
 457 /* We don't assign precedence to / and *, because we might need varied
 458 prec levels in different prods */
 459
 460 %left UNARY_MINUS
 461
 462 %%
 463
 464 lilypond:       /* empty */
 465         | lilypond toplevel_expression {
 466         }
 467         | lilypond assignment {
 468         }
 469         | lilypond error {
 470                 THIS->error_level_ = 1;
 471         }
 472         | lilypond INVALID      {
 473                 THIS->error_level_ = 1;
 474         }
 475         ;
 476
 477
 478 object_id_setting:
 479         OBJECTID STRING { $$ = $2; }
 480         ;
 481
 482 toplevel_expression:
 483         lilypond_header {
 484                 THIS->lexer_->set_identifier (ly_symbol2scm ("$globalheader"), $1);
 485         }
 486         | add_quote {
 487
 488         }
 489         | book_block {
 490                 Book *book = $1;
 491                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-book-handler");
 492                 scm_call_2 (proc, THIS->self_scm (), book->self_scm ());
 493                 scm_gc_unprotect_object (book->self_scm ());
 494         }
 495         | score_block {
 496                 Score *score = $1;
 497
 498                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-score-handler");
 499                 scm_call_2 (proc, THIS->self_scm (), score->self_scm ());
 500                 scm_gc_unprotect_object (score->self_scm ());
 501         }
 502         | toplevel_music {
 503                 Music *music = $1;
 504                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-music-handler");
 505                 scm_call_2 (proc, THIS->self_scm (), music->self_scm ());
 506                 scm_gc_unprotect_object (music->self_scm ());
 507         }
 508         | output_def {
 509                 SCM id = SCM_EOL;
 510                 Output_def * od = $1;
 511
 512                 if ($1->c_variable ("is-paper") == SCM_BOOL_T)
 513                         id = ly_symbol2scm ("$defaultpaper");
 514                 else if ($1->c_variable ("is-midi") == SCM_BOOL_T)
 515                         id = ly_symbol2scm ("$defaultmidi");
 516                 else if ($1->c_variable ("is-layout") == SCM_BOOL_T)
 517                         id = ly_symbol2scm ("$defaultlayout");
 518
 519                 THIS->lexer_->set_identifier (id, od->self_scm ());
 520                 scm_gc_unprotect_object (od->self_scm ());
 521         }
 522         ;
 523
 524 toplevel_music:
 525         Composite_music {
 526         }
 527         ;
 528
 529 embedded_scm:
 530         SCM_T
 531         | SCM_IDENTIFIER
 532         ;
 533
 534
 535 lilypond_header_body:
 536         {
 537                 $$ = ly_make_anonymous_module (safe_global_b);
 538                 THIS->lexer_->add_scope ($$);
 539         }
 540         | lilypond_header_body assignment  {
 541
 542         }
 543         ;
 544
 545 lilypond_header:
 546         HEADER '{' lilypond_header_body '}'     {
 547                 $$ = THIS->lexer_->remove_scope ();
 548         }
 549         ;
 550
 551
 552 /*
 553         DECLARATIONS
 554 */
 555 assignment:
 556         STRING {
 557                 THIS->push_spot ();
 558         }
 559         /* cont */ '=' identifier_init  {
 560
 561         /*
 562                 Should find generic way of associating input with objects.
 563         */
 564                 Input ip = THIS->pop_spot ();
 565
 566                 if (! is_regular_identifier ($1))
 567                 {
 568                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 569                 }
 570
 571                 THIS->lexer_->set_identifier ($1, $4);
 572
 573 /*
 574  TODO: devise standard for protection in parser.
 575
 576   The parser stack lives on the C-stack, which means that
 577 all objects can be unprotected as soon as they're here.
 578
 579 */
 580         }
 581         | embedded_scm { }
 582         ;
 583
 584
 585 identifier_init:
 586         score_block {
 587                 $$ = $1->self_scm ();
 588                 scm_gc_unprotect_object ($$);
 589         }
 590         | output_def {
 591                 $$ = $1->self_scm ();
 592                 scm_gc_unprotect_object ($$);
 593         }
 594         | context_def_spec_block {
 595                 $$ = $1;
 596         }
 597         | Music  {
 598                 $$ = $1->self_scm ();
 599                 scm_gc_unprotect_object ($$);
 600         }
 601         | post_event {
 602                 $$ = $1->self_scm ();
 603                 scm_gc_unprotect_object ($$);
 604         }
 605         | number_expression {
 606                 $$ = $1;
 607         }
 608         | string {
 609                 $$ = $1;
 610         }
 611         | embedded_scm {
 612                 $$ = $1;
 613         }
 614         | full_markup {
 615                 $$ = $1;
 616         }
 617         | DIGIT {
 618                 $$ = scm_int2num ($1);
 619         }
 620         ;
 621
 622 context_def_spec_block:
 623         CONTEXT '{' context_def_spec_body '}'
 624                 {
 625                 $$ = $3;
 626         }
 627         ;
 628
 629 context_def_spec_body:
 630         /**/ {
 631                 $$ = Context_def::make_scm ();
 632                 unsmob_context_def ($$)->set_spot (THIS->here_input ());
 633         }
 634         | CONTEXT_DEF_IDENTIFIER {
 635                 $$ = $1;
 636                 unsmob_context_def ($$)->set_spot (THIS->here_input ());
 637         }
 638         | context_def_spec_body GROBDESCRIPTIONS embedded_scm {
 639                 Context_def*td = unsmob_context_def ($$);
 640
 641                 for (SCM p = $3; scm_is_pair (p); p = scm_cdr (p)) {
 642                         SCM tag = scm_caar (p);
 643
 644                         /* TODO: should make new tag "grob-definition" ? */
 645                         td->add_context_mod (scm_list_3 (ly_symbol2scm ("assign"),
 646                                                         tag, scm_cons (scm_cdar (p), SCM_EOL)));
 647                 }
 648         }
 649         | context_def_spec_body context_mod {
 650                 unsmob_context_def ($$)->add_context_mod ($2);
 651         }
 652         ;
 653
 654
 655
 656 book_block:
 657         BOOK {
 658                 THIS->push_spot ();
 659         }
 660         /*cont*/ '{' book_body '}'      {
 661                 THIS->pop_spot ();
 662                 $$ = $4;
 663         }
 664         ;
 665
 666 /* FIXME:
 667    * Use 'handlers' like for toplevel-* stuff?
 668    * grok \layout and \midi?  */
 669 book_body:
 670         {
 671                 $$ = new Book;
 672                 $$->set_spot (THIS->here_input ());
 673                 $$->paper_ = dynamic_cast<Output_def*> (unsmob_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"))->clone ());
 674                 scm_gc_unprotect_object ($$->paper_->self_scm ());
 675                 $$->header_ = THIS->lexer_->lookup_identifier ("$globalheader");
 676         }
 677         | book_body paper_block {
 678                 $$->paper_ = $2;
 679                 scm_gc_unprotect_object ($2->self_scm ());
 680         }
 681         | book_body score_block {
 682                 Score *score = $2;
 683                 $$->add_score (score);
 684         }
 685         | book_body lilypond_header {
 686                 $$->header_ = $2;
 687         }
 688         | book_body error {
 689                 $$->paper_ = 0;
 690                 $$->scores_.clear();
 691         }
 692         | book_body object_id_setting {
 693                 $$->user_key_ = ly_scm2string ($2);
 694         }
 695         ;
 696
 697 score_block:
 698         SCORE {
 699                 THIS->push_spot ();
 700         }
 701         /*cont*/ '{' score_body '}'     {
 702                 THIS->pop_spot ();
 703                 $$ = $4;
 704         }
 705         ;
 706
 707 score_body:
 708         /**/    {
 709                 $$ = new Score;
 710
 711                 $$->set_spot (THIS->here_input ());
 712         }
 713         | SCORE_IDENTIFIER {
 714                 $$ = new Score ( *unsmob_score ($1));
 715                 $$->set_spot (THIS->here_input ());
 716         }
 717         | score_body object_id_setting {
 718                 $$->user_key_ = ly_scm2string ($2);
 719         }
 720         | score_body Music {
 721                 SCM m = $2->self_scm ();
 722                 scm_gc_unprotect_object (m);
 723                 $$->set_music (m, THIS->self_scm ());
 724         }
 725         | score_body lilypond_header    {
 726                 $$->header_ = $2;
 727         }
 728         | score_body output_def {
 729                 if ($2->lookup_variable (ly_symbol2scm ("is-paper")) == SCM_BOOL_T)
 730                 {
 731                         THIS->parser_error (_("\\paper cannot be in \\score. Use \\layout instead"));
 732
 733                 }
 734                 else
 735                 {
 736                         $$->defs_.push ($2);
 737                 }
 738                 scm_gc_unprotect_object ($2->self_scm ());
 739         }
 740         | score_body error {
 741                 $$->error_found_ = true;
 742         }
 743         ;
 744
 745
 746 /*
 747         OUTPUT DEF
 748 */
 749
 750 paper_block:
 751         output_def {
 752                 $$ = $1;
 753                 if ($$->lookup_variable (ly_symbol2scm ("is-paper")) != SCM_BOOL_T)
 754                 {
 755                         THIS->parser_error (_("Need \\paper for paper block."));
 756                         $$ = get_paper (THIS);
 757                 }
 758         }
 759         ;
 760
 761
 762 output_def:
 763         output_def_body '}' {
 764                 $$ = $1;
 765
 766                 THIS->lexer_->remove_scope ();
 767                 THIS->lexer_->pop_state ();
 768         }
 769         ;
 770
 771 output_def_head:
 772         PAPER {
 773                 $$ = get_paper (THIS);
 774                 $$->input_origin_ = THIS->here_input ();
 775                 THIS->lexer_->add_scope ($$->scope_);
 776         }
 777         | MIDI    {
 778                 Output_def *p = get_midi (THIS);
 779                 $$ = p;
 780                 THIS->lexer_->add_scope (p->scope_);
 781         }
 782         | LAYOUT        {
 783                 Output_def *p = get_layout (THIS);
 784
 785                 THIS->lexer_->add_scope (p->scope_);
 786                 $$ = p;
 787         }
 788         ;
 789
 790
 791 output_def_body:
 792         output_def_head '{' {
 793                 $$ = $1;
 794                 $$->input_origin_.set_spot (THIS->here_input ());
 795                 THIS->lexer_->push_initial_state ();
 796         }
 797         | output_def_head '{' OUTPUT_DEF_IDENTIFIER     {
 798                 scm_gc_unprotect_object ($1->self_scm ());
 799                 Output_def *o = unsmob_output_def ($3);
 800                 o->input_origin_.set_spot (THIS->here_input ());
 801                 $$ = o;
 802                 THIS->lexer_->remove_scope ();
 803                 THIS->lexer_->add_scope (o->scope_);
 804                 THIS->lexer_->push_initial_state ();
 805         }
 806         | output_def_body assignment  {
 807
 808         }
 809         | output_def_body context_def_spec_block        {
 810                 assign_context_def ($$, $2);
 811         }
 812         | output_def_body tempo_event  {
 813                 /*
 814                         junk this ? there already is tempo stuff in
 815                         music.
 816                 */
 817                 int m = scm_to_int ($2->get_property ("metronome-count"));
 818                 Duration *d = unsmob_duration ($2->get_property ("tempo-unit"));
 819                 set_tempo ($$, d->get_length (), m);
 820                 scm_gc_unprotect_object ($2->self_scm ());
 821         }
 822         | output_def_body error {
 823
 824         }
 825         ;
 826
 827 tempo_event:
 828         TEMPO steno_duration '=' bare_unsigned  {
 829                 $$ = MY_MAKE_MUSIC ("MetronomeChangeEvent");
 830                 $$->set_property ("tempo-unit", $2);
 831                 $$->set_property ("metronome-count", scm_int2num ( $4));
 832         }
 833         ;
 834
 835 /*
 836 The representation of a  list is the
 837
 838   (LIST . LAST-CONS)
 839
 840  to have efficient append.  */
 841
 842 Music_list:
 843         /* empty */ {
 844                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 845         }
 846         | Music_list Music {
 847                 SCM s = $$;
 848                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 849                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 850
 851                 if (scm_is_pair (scm_cdr (s)))
 852                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 853                 else
 854                         scm_set_car_x (s, c); /* set first cons */
 855                 scm_set_cdr_x (s, c);  /* remember last cell */
 856         }
 857         | Music_list embedded_scm {
 858
 859         }
 860         | Music_list error {
 861                 Music * m = MY_MAKE_MUSIC("Music");
 862                 // ugh. code dup
 863                 m->set_property ("error-found", SCM_BOOL_T);
 864                 SCM s = $$;
 865                 SCM c = scm_cons (m->self_scm (), SCM_EOL);
 866                 scm_gc_unprotect_object (m->self_scm ()); /* UGH */
 867
 868                 if (scm_is_pair (scm_cdr (s)))
 869                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 870                 else
 871                         scm_set_car_x (s, c); /* set first cons */
 872                 scm_set_cdr_x (s, c);  /* remember last cell */
 873         }
 874         ;
 875
 876 Music:
 877         Simple_music
 878         | Composite_music
 879         ;
 880
 881 Alternative_music:
 882         /* empty */ {
 883                 $$ = SCM_EOL;
 884         }
 885         | ALTERNATIVE '{' Music_list '}' {
 886                 $$ = $3;
 887         }
 888         ;
 889
 890
 891 Repeated_music:
 892         REPEAT simple_string bare_unsigned Music Alternative_music
 893         {
 894                 Music *beg = $4;
 895                 int times = $3;
 896                 SCM alts = scm_is_pair ($5) ? scm_car ($5) : SCM_EOL;
 897                 if (times < scm_ilength (alts)) {
 898                   unsmob_music (scm_car (alts))
 899                     ->origin ()->warning (
 900                     _ ("More alternatives than repeats.  Junking excess alternatives."));
 901                   alts = ly_truncate_list (times, alts);
 902                 }
 903
 904
 905                 SCM proc = ly_scheme_function ("make-repeated-music");
 906
 907                 SCM mus = scm_call_1 (proc, $2);
 908                 scm_gc_protect_object (mus); // UGH.
 909                 Music *r = unsmob_music (mus);
 910                 if (beg)
 911                         {
 912                         r-> set_property ("element", beg->self_scm ());
 913                         scm_gc_unprotect_object (beg->self_scm ());
 914                         }
 915                 r->set_property ("repeat-count", scm_int2num (times >? 1));
 916
 917                 r-> set_property ("elements",alts);
 918                 if (ly_c_equal_p ($2, scm_makfrom0str ("tremolo"))) {
 919                         /*
 920                         TODO: move this code to Scheme.
 921                         */
 922
 923                         /*
 924                         we can not get durations and other stuff correct down the line, so we have to
 925                         add to the duration log here.
 926                         */
 927                         SCM func = ly_scheme_function ("shift-duration-log");
 928
 929                         int dots = ($3 % 3) ? 0 : 1;
 930                         int shift = -intlog2 ((dots) ? ($3*2/3) : $3);
 931
 932                         Sequential_music *seq = dynamic_cast<Sequential_music*> ($4);
 933
 934                         if (seq) {
 935                                 int list_len = scm_ilength (seq->music_list ());
 936                                 if (list_len != 2)
 937                                         seq->origin ()->warning ("Chord tremolo must have 2 elements.");
 938                                 shift -= 1;
 939                                 r->compress (Moment (Rational (1, list_len)));
 940                                 }
 941                         scm_call_3 (func, r->self_scm (), scm_int2num (shift),scm_int2num (dots));
 942
 943                 }
 944                 r->set_spot (*$4->origin ());
 945
 946                 $$ = r;
 947         }
 948         ;
 949
 950 Sequential_music:
 951         SEQUENTIAL '{' Music_list '}'           {
 952                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 953                 $$->set_property ("elements", scm_car ($3));
 954                 $$->set_spot (THIS->here_input ());
 955         }
 956         | '{' Music_list '}'            {
 957                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 958                 $$->set_property ("elements", scm_car ($2));
 959                 $$->set_spot (THIS->here_input ());
 960         }
 961         ;
 962
 963 Simultaneous_music:
 964         SIMULTANEOUS '{' Music_list '}'{
 965                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 966                 $$->set_property ("elements", scm_car ($3));
 967                 $$->set_spot (THIS->here_input ());
 968
 969         }
 970         | simul_open Music_list simul_close     {
 971                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 972                 $$->set_property ("elements", scm_car ($2));
 973                 $$->set_spot (THIS->here_input ());
 974         }
 975         ;
 976
 977 Simple_music:
 978         event_chord             { $$ = $1; }
 979         | MUSIC_IDENTIFIER {
 980                 $$ = unsmob_music ($1);
 981         }
 982         | music_property_def
 983         | context_change
 984         ;
 985
 986
 987 optional_context_mod:
 988         /**/ { $$ = SCM_EOL; }
 989         | WITH { THIS->lexer_->push_initial_state (); }
 990         '{' context_mod_list '}'
 991         {
 992                 THIS->lexer_->pop_state ();
 993                 $$ = $4;
 994         }
 995         ;
 996
 997 context_mod_list:
 998         /* */  { $$ = SCM_EOL; }
 999         | context_mod_list context_mod  {
1000                  $$ = scm_cons ($2, $1);
1001         }
1002         ;
1003
1004
1005 Composite_music:
1006         Prefix_composite_music { $$ = $1; }
1007         | Grouped_music_list { $$ = $1; }
1008         ;
1009
1010 Grouped_music_list:
1011         Simultaneous_music              { $$ = $1; }
1012         | Sequential_music              { $$ = $1; }
1013         ;
1014
1015 Generic_prefix_music_scm:
1016         MUSIC_FUNCTION {
1017                 $$ = scm_list_2 ($1, make_input (THIS->here_input ()));
1018         }
1019         | MUSIC_FUNCTION_SCM {
1020                 THIS->push_spot ();
1021         } embedded_scm {
1022                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3);
1023         }
1024         | MUSIC_FUNCTION_MARKUP {
1025                 THIS->push_spot ();
1026         } full_markup {
1027                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3);
1028         }
1029         | MUSIC_FUNCTION_MUSIC {
1030                 THIS->push_spot ();
1031         } Music {
1032                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3->self_scm ());
1033                 scm_gc_unprotect_object ($3->self_scm ());
1034         }
1035         | MUSIC_FUNCTION_SCM_MUSIC {
1036                 THIS->push_spot ();
1037         }  embedded_scm Music {
1038                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4->self_scm ());
1039                 scm_gc_unprotect_object ($4->self_scm ());
1040         }
1041         | MUSIC_FUNCTION_SCM_SCM {
1042                 THIS->push_spot ();
1043         }  embedded_scm embedded_scm {
1044                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4);
1045         }
1046         | MUSIC_FUNCTION_SCM_SCM_MUSIC {
1047                 THIS->push_spot ();
1048         }  embedded_scm embedded_scm Music {
1049                 $$ = scm_list_5 ($1, make_input (THIS->pop_spot ()), $3, $4, $5->self_scm ());
1050         }
1051         | MUSIC_FUNCTION_MARKUP_MUSIC {
1052                 THIS->push_spot ();
1053         }  full_markup Music {
1054                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4->self_scm ());
1055                 scm_gc_unprotect_object ($4->self_scm ());
1056         }
1057         | MUSIC_FUNCTION_MARKUP_MARKUP {
1058                 THIS->push_spot ();
1059         }  full_markup full_markup {
1060                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4);
1061         }
1062         | MUSIC_FUNCTION_MUSIC_MUSIC {
1063                 THIS->push_spot ();
1064         }  Music  Music {
1065                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3->self_scm (), $4->self_scm ());
1066                 scm_gc_unprotect_object ($3->self_scm ());
1067                 scm_gc_unprotect_object ($4->self_scm ());
1068         }
1069         | MUSIC_FUNCTION_SCM_MUSIC_MUSIC {
1070                 THIS->push_spot ();
1071         } embedded_scm Music Music {
1072                 $$ = scm_list_5 ($1, make_input (THIS->pop_spot ()),
1073                         $3, $4->self_scm (), $5->self_scm ());
1074                 scm_gc_unprotect_object ($5->self_scm ());
1075                 scm_gc_unprotect_object ($4->self_scm ());
1076         }
1077         | MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC {
1078                 THIS->push_spot ();
1079         } full_markup Music Music {
1080                 $$ = scm_list_5 ($1, make_input (THIS->pop_spot ()),
1081                         $3, $4->self_scm (), $5->self_scm ());
1082                 scm_gc_unprotect_object ($5->self_scm ());
1083                 scm_gc_unprotect_object ($4->self_scm ());
1084         }
1085         ;
1086
1087 Generic_prefix_music:
1088         Generic_prefix_music_scm {
1089                 SCM func = scm_car ($1);
1090                 Input *loc = unsmob_input (scm_cadr ($1));
1091                 SCM args = scm_cddr ($1);
1092                 SCM sig = scm_object_property (func, ly_symbol2scm ("music-function-signature"));
1093
1094                 SCM type_check_proc = ly_scheme_function ("type-check-list");
1095                 bool ok  = true;
1096
1097                 if (!to_boolean (scm_call_3  (type_check_proc, scm_cadr ($1), sig, args)))
1098                 {
1099                         THIS->error_level_ = 1;
1100                         ok = false;
1101                 }
1102
1103                 SCM m = SCM_EOL;
1104                 if (ok)
1105                         m = scm_apply_0 (func, scm_cdr ($1));
1106
1107                 if (unsmob_music (m))
1108                         {
1109                         $$ = unsmob_music (m);
1110                         scm_gc_protect_object (m);
1111                         }
1112                 else
1113                         {
1114                         if (ok)
1115                                 loc->error (_ ("Music head function should return Music object."));
1116                         $$ = MY_MAKE_MUSIC ("Music");
1117                         }
1118                 $$->set_spot (*loc);
1119         }
1120         ;
1121
1122
1123 Prefix_composite_music:
1124         Generic_prefix_music {
1125                 $$ = $1;
1126         }
1127         | CONTEXT simple_string '=' simple_string optional_context_mod Music {
1128                 $$ = context_spec_music ($2, $4, $6, $5);
1129
1130         }
1131         | CONTEXT simple_string optional_context_mod Music {
1132                 $$ = context_spec_music ($2, SCM_UNDEFINED, $4, $3);
1133         }
1134         | NEWCONTEXT simple_string optional_context_mod Music {
1135                 $$ = context_spec_music ($2, get_next_unique_context_id (), $4,
1136                         $3);
1137         }
1138
1139         | TIMES {
1140                 THIS->push_spot ();
1141         }
1142         /* CONTINUED */
1143                 fraction Music
1144
1145         {
1146                 int n = scm_to_int (scm_car ($3)); int d = scm_to_int (scm_cdr ($3));
1147                 Music *mp = $4;
1148
1149                 $$= MY_MAKE_MUSIC ("TimeScaledMusic");
1150                 $$->set_spot (THIS->pop_spot ());
1151
1152                 $$->set_property ("element", mp->self_scm ());
1153                 scm_gc_unprotect_object (mp->self_scm ());
1154                 $$->set_property ("numerator", scm_int2num (n));
1155                 $$->set_property ("denominator", scm_int2num (d));
1156                 $$->compress (Moment (Rational (n,d)));
1157
1158         }
1159         | Repeated_music                { $$ = $1; }
1160         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
1161                 $$ = MY_MAKE_MUSIC ("TransposedMusic");
1162                 Music *p = $4;
1163                 Pitch from = *unsmob_pitch ($2);
1164                 Pitch to = *unsmob_pitch ($3);
1165
1166                 p->transpose (pitch_interval (from, to));
1167                 $$->set_property ("element", p->self_scm ());
1168                 scm_gc_unprotect_object (p->self_scm ());
1169         }
1170         | mode_changing_head Grouped_music_list {
1171                 if ($1 == ly_symbol2scm ("chords"))
1172                 {
1173                   Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
1174                   chm->set_property ("element", $2->self_scm ());
1175                   $$ = chm;
1176                   scm_gc_unprotect_object ($2->self_scm ());
1177                 }
1178                 else
1179                 {
1180                   $$ = $2;
1181                 }
1182                 THIS->lexer_->pop_state ();
1183         }
1184         | mode_changing_head_with_context optional_context_mod Grouped_music_list {
1185                 $$ = context_spec_music ($1, get_next_unique_context_id (),
1186                                          $3, $2);
1187                 if ($1 == ly_symbol2scm ("ChordNames"))
1188                 {
1189                   Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
1190                   chm->set_property ("element", $$->self_scm ());
1191                   scm_gc_unprotect_object ($$->self_scm ());
1192                   $$ = chm;
1193                 }
1194                 THIS->lexer_->pop_state ();
1195         }
1196         | relative_music        { $$ = $1; }
1197         | re_rhythmed_music     { $$ = $1; }
1198         | TAG embedded_scm Music {
1199                 tag_music ($3, $2, THIS->here_input ());
1200                 $$ = $3;
1201         }
1202         ;
1203
1204 mode_changing_head:
1205         NOTEMODE {
1206                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
1207                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1208
1209                 $$ = ly_symbol2scm ("notes");
1210         }
1211         | DRUMMODE
1212                 {
1213                 SCM nn = THIS->lexer_->lookup_identifier ("drumPitchNames");
1214                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1215
1216                 $$ = ly_symbol2scm ("drums");
1217         }
1218         | FIGUREMODE {
1219                 THIS->lexer_->push_figuredbass_state ();
1220
1221                 $$ = ly_symbol2scm ("figures");
1222         }
1223         | CHORDMODE {
1224                 SCM nn = THIS->lexer_->lookup_identifier ("chordmodifiers");
1225                 THIS->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1226                 nn = THIS->lexer_->lookup_identifier ("pitchnames");
1227                 THIS->lexer_->push_chord_state (alist_to_hashq (nn));
1228                 $$ = ly_symbol2scm ("chords");
1229
1230         }
1231         | LYRICMODE
1232                 { THIS->lexer_->push_lyric_state ();
1233                 $$ = ly_symbol2scm ("lyrics");
1234         }
1235         ;
1236
1237 mode_changing_head_with_context:
1238         DRUMS {
1239                 SCM nn = THIS->lexer_->lookup_identifier ("drumPitchNames");
1240                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1241
1242                 $$ = ly_symbol2scm ("DrumStaff");
1243         }
1244         | FIGURES {
1245                 THIS->lexer_->push_figuredbass_state ();
1246
1247                 $$ = ly_symbol2scm ("FiguredBass");
1248         }
1249         | CHORDS {
1250                 SCM nn = THIS->lexer_->lookup_identifier ("chordmodifiers");
1251                 THIS->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1252                 nn = THIS->lexer_->lookup_identifier ("pitchnames");
1253                 THIS->lexer_->push_chord_state (alist_to_hashq (nn));
1254                 $$ = ly_symbol2scm ("ChordNames");
1255         }
1256         | LYRICS
1257                 { THIS->lexer_->push_lyric_state ();
1258                 $$ = ly_symbol2scm ("Lyrics");
1259         }
1260         ;
1261
1262
1263 relative_music:
1264         RELATIVE absolute_pitch Music {
1265                 Music *m = $3;
1266                 Pitch start = *unsmob_pitch ($2);
1267                 $$ = make_music_relative (start, m);
1268                 scm_gc_unprotect_object (m->self_scm ());
1269         }
1270         | RELATIVE Composite_music {
1271                 Music *m = $2;
1272
1273                 Pitch middle_c (0, 0, 0);
1274                 $$ = make_music_relative (middle_c, m);
1275                 scm_gc_unprotect_object (m->self_scm ());
1276         }
1277         ;
1278
1279 new_lyrics:
1280         ADDLYRICS { THIS->lexer_->push_lyric_state (); }
1281         /*cont */
1282         Grouped_music_list {
1283         /* Can also use Music at the expensive of two S/Rs similar to
1284            \repeat \alternative */
1285                 THIS->lexer_->pop_state ();
1286
1287                 $$ = scm_cons ($3->self_scm (), SCM_EOL);
1288         }
1289         | new_lyrics ADDLYRICS {
1290                 THIS->lexer_->push_lyric_state ();
1291         } Grouped_music_list {
1292                 THIS->lexer_->pop_state ();
1293                 $$ = scm_cons ($4->self_scm (), $1);
1294         }
1295         ;
1296
1297 re_rhythmed_music:
1298         Grouped_music_list new_lyrics {
1299                 Music * voice = $1;
1300                 SCM name = get_first_context_id (scm_makfrom0str ("Voice"), voice);
1301                 if (!scm_is_string (name))
1302                 {
1303                         name = get_next_unique_lyrics_context_id ();
1304                         voice = context_spec_music (scm_makfrom0str ("Voice"),
1305                                                     name,
1306                                                     voice, SCM_EOL);
1307                 }
1308
1309                 SCM context = scm_makfrom0str ("Lyrics");
1310                 Music *all = MY_MAKE_MUSIC ("SimultaneousMusic");
1311
1312                 SCM lst = SCM_EOL;
1313                 for (SCM s = $2; scm_is_pair (s); s = scm_cdr (s))
1314                 {
1315                         Music *music = unsmob_music (scm_car (s));
1316                         Music *com = make_lyric_combine_music (name, music);
1317                         Music *csm = context_spec_music (context,
1318                                 get_next_unique_context_id (), com, SCM_EOL);
1319                         lst = scm_cons (csm->self_scm (), lst);
1320                 }
1321                 all->set_property ("elements", scm_cons (voice->self_scm (),
1322                         lst));
1323                 $$ = all;
1324                 scm_gc_unprotect_object (voice->self_scm ());
1325         }
1326         | LYRICSTO {
1327                 THIS->lexer_->push_lyric_state ();
1328         } simple_string Music {
1329                 THIS->lexer_->pop_state ();
1330                 Music *music = $4;
1331                 SCM name = $3;
1332                 $$ = make_lyric_combine_music (name, music);
1333                 scm_gc_unprotect_object (music->self_scm ());
1334         }
1335         ;
1336
1337 context_change:
1338         CHANGE STRING '=' STRING  {
1339                 Music*t= MY_MAKE_MUSIC ("ContextChange");
1340                 t-> set_property ("change-to-type", scm_string_to_symbol ($2));
1341                 t-> set_property ("change-to-id", $4);
1342
1343                 $$ = t;
1344                 $$->set_spot (THIS->here_input ());
1345         }
1346         ;
1347
1348 property_operation:
1349         STRING '=' scalar {
1350                 $$ = scm_list_3 (ly_symbol2scm ("assign"),
1351                         scm_string_to_symbol ($1), $3);
1352         }
1353         | UNSET simple_string {
1354                 $$ = scm_list_2 (ly_symbol2scm ("unset"),
1355                         scm_string_to_symbol ($2));
1356         }
1357         | OVERRIDE simple_string embedded_scm '=' embedded_scm {
1358                 $$ = scm_list_4 (ly_symbol2scm ("push"),
1359                         scm_string_to_symbol ($2), $3, $5);
1360         }
1361         | REVERT simple_string embedded_scm {
1362                 $$ = scm_list_3 (ly_symbol2scm ("pop"),
1363                         scm_string_to_symbol ($2), $3);
1364         }
1365         ;
1366
1367 context_def_mod:
1368         CONSISTS { $$ = ly_symbol2scm ("consists"); }
1369         | REMOVE { $$ = ly_symbol2scm ("remove"); }
1370
1371         | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
1372         | DENIES { $$ = ly_symbol2scm ("denies"); }
1373
1374         | ALIAS { $$ = ly_symbol2scm ("alias"); }
1375         | TYPE { $$ = ly_symbol2scm ("translator-type"); }
1376         | DESCRIPTION { $$ = ly_symbol2scm ("description"); }
1377         | NAME { $$ = ly_symbol2scm ("context-name"); }
1378         ;
1379
1380 context_mod:
1381         property_operation { $$ = $1; }
1382         | context_def_mod STRING {
1383                 $$ = scm_list_2 ($1, $2);
1384         }
1385         ;
1386
1387 context_prop_spec:
1388         simple_string {
1389                 if (!is_regular_identifier ($1))
1390                 {
1391                         THIS->here_input ().error (_("Grob name should be alphanumeric"));
1392                 }
1393
1394                 $$ = scm_list_2 (ly_symbol2scm ("Bottom"),
1395                         scm_string_to_symbol ($1));
1396         }
1397         | simple_string '.' simple_string {
1398                 $$ = scm_list_2 (scm_string_to_symbol ($1),
1399                         scm_string_to_symbol ($3));
1400         }
1401         ;
1402
1403 music_property_def:
1404         OVERRIDE context_prop_spec embedded_scm '=' scalar {
1405                 $$ = property_op_to_music (scm_list_4 (
1406                         ly_symbol2scm ("poppush"),
1407                         scm_cadr ($2),
1408                         $3, $5));
1409                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1410         }
1411         | REVERT context_prop_spec embedded_scm {
1412                 $$ = property_op_to_music (scm_list_3 (
1413                         ly_symbol2scm ("pop"),
1414                         scm_cadr ($2),
1415                         $3));
1416
1417                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1418         }
1419         | SET context_prop_spec '=' scalar {
1420                 $$ = property_op_to_music (scm_list_3 (
1421                         ly_symbol2scm ("assign"),
1422                         scm_cadr ($2),
1423                         $4));
1424                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1425         }
1426         | UNSET context_prop_spec {
1427                 $$ = property_op_to_music (scm_list_2 (
1428                         ly_symbol2scm ("unset"),
1429                         scm_cadr ($2)));
1430                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1431         }
1432         | ONCE music_property_def {
1433                 SCM e = $2->get_property ("element");
1434                 unsmob_music (e)->set_property ("once", SCM_BOOL_T);
1435                 $$ = $2;
1436
1437         }
1438         ;
1439
1440
1441 string:
1442         STRING {
1443                 $$ = $1;
1444         }
1445         | STRING_IDENTIFIER {
1446                 $$ = $1;
1447         }
1448         | string '+' string {
1449                 $$ = scm_string_append (scm_list_2 ($1, $3));
1450         }
1451         ;
1452
1453 simple_string: STRING {
1454                 $$ = $1;
1455         }
1456         | LYRICS_STRING {
1457                 $$ = $1;
1458         }
1459         ;
1460
1461 scalar: string {
1462                 $$ = $1;
1463         }
1464         | LYRICS_STRING {
1465                 $$ = $1;
1466         }
1467         | bare_int {
1468                 $$ = scm_int2num ($1);
1469         }
1470         | embedded_scm {
1471                 $$ = $1;
1472         }
1473         | full_markup {
1474                 $$ = $1;
1475         }
1476         | DIGIT {
1477                 $$ = scm_int2num ($1);
1478         }
1479         ;
1480
1481 /*
1482
1483 pre_events doesn't contain anything. It is a trick:
1484
1485 Adding pre_events to the simple_element
1486 makes the choice between
1487
1488   string:  STRING
1489
1490 and
1491
1492   simple_element: STRING
1493
1494 a single shift/reduction conflict.
1495
1496 nevertheless, this is not very clean, and we should find a different
1497 solution.
1498
1499 */
1500 pre_events: {
1501                 THIS->push_spot ();
1502         }
1503         ;
1504
1505 event_chord:
1506         pre_events simple_element post_events   {
1507                 SCM elts = $2-> get_property ("elements");
1508
1509                 elts = ly_append2 (elts, scm_reverse_x ($3, SCM_EOL));
1510
1511                 $2->set_property ("elements", elts);
1512                 $$ = $2;
1513         }
1514         | command_element
1515         | note_chord_element
1516         ;
1517
1518
1519 note_chord_element:
1520         chord_body optional_notemode_duration post_events
1521         {
1522                 SCM dur = unsmob_duration ($2)->smobbed_copy ();
1523                 SCM es = $1->get_property ("elements");
1524                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1525
1526                 for (SCM s = es; scm_is_pair (s); s = scm_cdr (s))
1527                   unsmob_music (scm_car (s))->set_property ("duration", dur);
1528                 es = ly_append2 (es, postevs);
1529
1530                 $1-> set_property ("elements", es);
1531                 $$ = $1;
1532         }
1533         ;
1534
1535 chord_open: '<'
1536         ;
1537
1538 chord_close: '>'
1539         ;
1540
1541 simul_open: DOUBLE_ANGLE_OPEN
1542         ;
1543
1544 simul_close: DOUBLE_ANGLE_CLOSE
1545         ;
1546
1547 chord_body:
1548         chord_open chord_body_elements chord_close
1549         {
1550                 $$ = MY_MAKE_MUSIC ("EventChord");
1551                 $$->set_property ("elements",
1552                         scm_reverse_x ($2, SCM_EOL));
1553         }
1554         ;
1555
1556 chord_body_elements:
1557         /* empty */             { $$ = SCM_EOL; }
1558         | chord_body_elements chord_body_element {
1559                 $$ = scm_cons ($2->self_scm (), $1);
1560                 scm_gc_unprotect_object ($2->self_scm ());
1561         }
1562         ;
1563
1564 chord_body_element:
1565         pitch  exclamations questions octave_check post_events
1566         {
1567                 int q = $3;
1568                 int ex = $2;
1569                 SCM check = $4;
1570                 SCM post = $5;
1571
1572                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1573                 n->set_property ("pitch", $1);
1574                 if (q % 2)
1575                         n->set_property ("cautionary", SCM_BOOL_T);
1576                 if (ex % 2 || q % 2)
1577                         n->set_property ("force-accidental", SCM_BOOL_T);
1578
1579                 if (scm_is_pair (post)) {
1580                         SCM arts = scm_reverse_x (post, SCM_EOL);
1581                         n->set_property ("articulations", arts);
1582                 }
1583                 if (scm_is_number (check))
1584                 {
1585                         int q = scm_to_int (check);
1586                         n->set_property ("absolute-octave", scm_int2num (q-1));
1587                 }
1588
1589
1590                 $$ = n;
1591         }
1592         | DRUM_PITCH post_events {
1593                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1594                 n->set_property ("duration", $2);
1595                 n->set_property ("drum-type", $1);
1596                 n->set_spot (THIS->here_input ());
1597
1598                 if (scm_is_pair ($2)) {
1599                         SCM arts = scm_reverse_x ($2, SCM_EOL);
1600                         n->set_property ("articulations", arts);
1601                 }
1602                 $$ = n;
1603         }
1604         ;
1605
1606 add_quote:
1607         ADDQUOTE string Music {
1608                 SCM adder = ly_scheme_function ("add-quotable");
1609
1610                 scm_call_2 (adder, $2, $3->self_scm ());
1611                 scm_gc_unprotect_object ($3->self_scm ());
1612         }
1613         ;
1614
1615 command_element:
1616         command_req {
1617                 $$ = MY_MAKE_MUSIC ("EventChord");
1618                 $$->set_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1619                 scm_gc_unprotect_object ($1->self_scm ());
1620
1621                 $$-> set_spot (THIS->here_input ());
1622                 $1-> set_spot (THIS->here_input ());
1623         }
1624         | SKIP duration_length {
1625                 Music *skip = MY_MAKE_MUSIC ("SkipMusic");
1626                 skip->set_property ("duration", $2);
1627
1628                 $$ = skip;
1629         }
1630         | OCTAVE { THIS->push_spot (); }
1631           pitch {
1632                 Music *m = MY_MAKE_MUSIC ("RelativeOctaveCheck");
1633                 $$ = m;
1634                 $$->set_spot (THIS->pop_spot ());
1635                 $$->set_property ("pitch", $3);
1636         }
1637         | E_LEFTSQUARE {
1638                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1639                 m->set_property ("span-direction", scm_int2num (START));
1640                 m->set_spot (THIS->here_input ());
1641
1642                 $$ = MY_MAKE_MUSIC ("EventChord");
1643                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1644                 scm_gc_unprotect_object (m->self_scm ());
1645                 $$->set_spot (THIS->here_input ());
1646         }
1647         | E_RIGHTSQUARE {
1648                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1649                 m->set_property ("span-direction", scm_int2num (STOP));
1650                 m->set_spot (THIS->here_input ());
1651
1652                 $$ = MY_MAKE_MUSIC ("EventChord");
1653                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1654                 $$->set_spot (THIS->here_input ());
1655                 scm_gc_unprotect_object (m->self_scm ());
1656         }
1657         | E_BACKSLASH {
1658                 $$ = MY_MAKE_MUSIC ("VoiceSeparator");
1659                 $$->set_spot (THIS->here_input ());
1660         }
1661         | '|'      {
1662                 SCM pipe =THIS->lexer_->lookup_identifier ("pipeSymbol");
1663
1664                 if (Music * m = unsmob_music (pipe))
1665                         $$ = m->clone ();
1666                 else
1667                         $$ = MY_MAKE_MUSIC ("BarCheck");
1668
1669                 $$->set_spot (THIS->here_input ());
1670         }
1671         | TRANSPOSITION pitch {
1672                 Pitch middle_c;
1673                 Pitch sounds_as_c = pitch_interval (*unsmob_pitch ($2), middle_c);
1674                 $$ = set_property_music (ly_symbol2scm ("instrumentTransposition"),
1675                                          sounds_as_c.smobbed_copy());
1676                 $$->set_spot (THIS-> here_input ());
1677                 $$ = context_spec_music (ly_symbol2scm ("Staff"), SCM_UNDEFINED,
1678                         $$, SCM_EOL);
1679         }
1680         | BAR STRING                    {
1681                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1682
1683                 Music *csm = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1684                                         t, SCM_EOL);
1685                 $$ = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED, csm, SCM_EOL);
1686                 $$->set_spot (THIS->here_input ());
1687                 t->set_spot (THIS->here_input ());
1688         }
1689         | PARTIAL duration_length       {
1690                 Moment m = - unsmob_duration ($2)->get_length ();
1691                 Music *p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1692                 p->set_spot (THIS->here_input ());
1693                 p = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1694                                         p, SCM_EOL);
1695                 p = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED,
1696                                         p, SCM_EOL);
1697                 $$ = p;
1698         }
1699         | CLEF STRING  {
1700                 SCM proc = ly_scheme_function ("make-clef-set");
1701
1702                 SCM result = scm_call_1 (proc, $2);
1703                 scm_gc_protect_object (result);
1704                 $$ = unsmob_music (result);
1705         }
1706         | TIME_T fraction  {
1707                 SCM proc= ly_scheme_function ("make-time-signature-set");
1708
1709                 SCM result = scm_apply_2   (proc, scm_car ($2), scm_cdr ($2), SCM_EOL);
1710                 scm_gc_protect_object (result);
1711                 $$ = unsmob_music (result);
1712         }
1713         | MARK scalar {
1714                 SCM proc = ly_scheme_function ("make-mark-set");
1715
1716                 SCM result = scm_call_1 (proc, $2);
1717                 scm_gc_protect_object (result);
1718                 $$ = unsmob_music (result);
1719         }
1720         ;
1721
1722 command_req:
1723         E_TILDE {
1724                 $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent");
1725         }
1726         | MARK DEFAULT  {
1727                 Music *m = MY_MAKE_MUSIC ("MarkEvent");
1728                 $$ = m;
1729         }
1730         | tempo_event {
1731                 $$ = $1;
1732         }
1733         | KEY DEFAULT {
1734                 Music *key= MY_MAKE_MUSIC ("KeyChangeEvent");
1735                 $$ = key;
1736         }
1737         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1738
1739                 Music *key= MY_MAKE_MUSIC ("KeyChangeEvent");
1740                 if (scm_ilength ($3) > 0)
1741                 {
1742                         key->set_property ("pitch-alist", $3);
1743                         key->set_property ("tonic", Pitch (0,0,0).smobbed_copy ());
1744                         key->transpose (* unsmob_pitch ($2));
1745                 } else {
1746                         THIS->parser_error (_ ("Second argument must be pitch list."));
1747                 }
1748
1749                 $$ = key;
1750         }
1751         ;
1752
1753 post_events:
1754         /* empty */ {
1755                 $$ = SCM_EOL;
1756         }
1757         | post_events post_event {
1758                 $2->set_spot (THIS->here_input ());
1759                 $$ = scm_cons ($2->self_scm (), $$);
1760                 scm_gc_unprotect_object ($2->self_scm ());
1761         }
1762         | post_events tagged_post_event {
1763                 $2 -> set_spot (THIS->here_input ());
1764                 $$ = scm_cons ($2->self_scm (), $$);
1765                 scm_gc_unprotect_object ($2->self_scm ());
1766         }
1767         ;
1768
1769
1770 tagged_post_event:
1771         '-' TAG embedded_scm post_event {
1772                 tag_music ($4, $3, THIS->here_input ());
1773                 $$ = $4;
1774         }
1775         ;
1776
1777 post_event:
1778         direction_less_event {
1779                 $$ = $1;
1780         }
1781         | HYPHEN {
1782                 if (!THIS->lexer_->is_lyric_state ())
1783                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1784                 $$ = MY_MAKE_MUSIC ("HyphenEvent");
1785         }
1786         | EXTENDER {
1787                 if (!THIS->lexer_->is_lyric_state ())
1788                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1789                 $$ = MY_MAKE_MUSIC ("ExtenderEvent");
1790         }
1791         | script_dir direction_reqd_event {
1792                 if ($1)
1793                         $2->set_property ("direction", scm_int2num ($1));
1794                 $$ = $2;
1795         }
1796         | script_dir direction_less_event {
1797                 if ($1)
1798                         $2->set_property ("direction", scm_int2num ($1));
1799                 $$ = $2;
1800         }
1801         | string_number_event
1802         ;
1803
1804 string_number_event:
1805         E_UNSIGNED {
1806                 Music *s = MY_MAKE_MUSIC ("StringNumberEvent");
1807                 s->set_property ("string-number", scm_int2num ($1));
1808                 s->set_spot (THIS->here_input ());
1809                 $$ = s;
1810         }
1811         ;
1812
1813 direction_less_char:
1814         '['  {
1815                 $$ = ly_symbol2scm ("bracketOpenSymbol");
1816         }
1817         | ']'  {
1818                 $$ = ly_symbol2scm ("bracketCloseSymbol");
1819         }
1820         | '~'  {
1821                 $$ = ly_symbol2scm ("tildeSymbol");
1822         }
1823         | '('  {
1824                 $$ = ly_symbol2scm ("parenthesisOpenSymbol");
1825         }
1826         | ')'  {
1827                 $$ = ly_symbol2scm ("parenthesisCloseSymbol");
1828         }
1829         | E_EXCLAMATION  {
1830                 $$ = ly_symbol2scm ("escapedExclamationSymbol");
1831         }
1832         | E_OPEN  {
1833                 $$ = ly_symbol2scm ("escapedParenthesisOpenSymbol");
1834         }
1835         | E_CLOSE  {
1836                 $$ = ly_symbol2scm ("escapedParenthesisCloseSymbol");
1837         }
1838         | E_BIGGER  {
1839                 $$ = ly_symbol2scm ("escapedBiggerSymbol");
1840         }
1841         | E_SMALLER  {
1842                 $$ = ly_symbol2scm ("escapedSmallerSymbol");
1843         }
1844         ;
1845
1846 direction_less_event:
1847         direction_less_char {
1848                 SCM predefd = THIS->lexer_->lookup_identifier_symbol ($1);
1849                 Music * m = 0;
1850                 if (unsmob_music (predefd))
1851                 {
1852                         m = unsmob_music (predefd)->clone ();
1853                 }
1854                 else
1855                 {
1856                         m = MY_MAKE_MUSIC ("Music");
1857                 }
1858                 m->set_spot (THIS->here_input ());
1859                 $$ = m;
1860         }
1861         | EVENT_IDENTIFIER      {
1862                 $$ = unsmob_music ($1);
1863         }
1864         | tremolo_type  {
1865                Music *a = MY_MAKE_MUSIC ("TremoloEvent");
1866                a->set_spot (THIS->here_input ());
1867                a->set_property ("tremolo-type", scm_int2num ($1));
1868                $$ = a;
1869         }
1870         ;
1871
1872 direction_reqd_event:
1873         gen_text_def {
1874                 $$ = $1;
1875         }
1876         | script_abbreviation {
1877                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1878                 Music *a = MY_MAKE_MUSIC ("ArticulationEvent");
1879                 if (scm_is_string (s))
1880                         a->set_property ("articulation-type", s);
1881                 else THIS->parser_error (_ ("Expecting string as script definition"));
1882                 $$ = a;
1883         }
1884         ;
1885
1886 octave_check:
1887         /**/ { $$ = SCM_EOL; }
1888         | '='  { $$ = scm_int2num (0); }
1889         | '=' sub_quotes { $$ = scm_int2num ($2); }
1890         | '=' sup_quotes { $$ = scm_int2num ($2); }
1891         ;
1892
1893 sup_quotes:
1894         '\'' {
1895                 $$ = 1;
1896         }
1897         | sup_quotes '\'' {
1898                 $$ ++;
1899         }
1900         ;
1901
1902 sub_quotes:
1903         ',' {
1904                 $$ = 1;
1905         }
1906         | sub_quotes ',' {
1907                 $$++;
1908         }
1909         ;
1910
1911 steno_pitch:
1912         NOTENAME_PITCH  {
1913                 $$ = $1;
1914         }
1915         | NOTENAME_PITCH sup_quotes     {
1916                 Pitch p = *unsmob_pitch ($1);
1917                 p = p.transposed (Pitch ($2,0,0));
1918                 $$ = p.smobbed_copy ();
1919         }
1920         | NOTENAME_PITCH sub_quotes      {
1921                 Pitch p =* unsmob_pitch ($1);
1922                 p = p.transposed (Pitch (-$2,0,0));
1923                 $$ = p.smobbed_copy ();
1924         }
1925         ;
1926
1927 /*
1928 ugh. duplication
1929 */
1930
1931 steno_tonic_pitch:
1932         TONICNAME_PITCH {
1933                 $$ = $1;
1934         }
1935         | TONICNAME_PITCH sup_quotes    {
1936                 Pitch p = *unsmob_pitch ($1);
1937                 p = p.transposed (Pitch ($2,0,0));
1938                 $$ = p.smobbed_copy ();
1939         }
1940         | TONICNAME_PITCH sub_quotes     {
1941                 Pitch p =* unsmob_pitch ($1);
1942
1943                 p = p.transposed (Pitch (-$2,0,0));
1944                 $$ = p.smobbed_copy ();
1945         }
1946         ;
1947
1948 pitch:
1949         steno_pitch {
1950                 $$ = $1;
1951         }
1952         ;
1953
1954 pitch_also_in_chords:
1955         pitch
1956         | steno_tonic_pitch
1957         ;
1958
1959 gen_text_def:
1960         full_markup {
1961                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1962                 t->set_property ("text", $1);
1963                 t->set_spot (THIS->here_input ());
1964                 $$ = t;
1965         }
1966         | string {
1967                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1968                 t->set_property ("text",
1969                         make_simple_markup (THIS->lexer_->encoding (), $1));
1970                 t->set_spot (THIS->here_input ());
1971                 $$ = t;
1972
1973         }
1974         | DIGIT {
1975                 Music *t = MY_MAKE_MUSIC ("FingerEvent");
1976                 t->set_property ("digit", scm_int2num ($1));
1977                 t->set_spot (THIS->here_input ());
1978                 $$ = t;
1979         }
1980         ;
1981
1982 script_abbreviation:
1983         '^'             {
1984                 $$ = scm_makfrom0str ("Hat");
1985         }
1986         | '+'           {
1987                 $$ = scm_makfrom0str ("Plus");
1988         }
1989         | '-'           {
1990                 $$ = scm_makfrom0str ("Dash");
1991         }
1992         | '|'           {
1993                 $$ = scm_makfrom0str ("Bar");
1994         }
1995         | '>'           {
1996                 $$ = scm_makfrom0str ("Larger");
1997         }
1998         | '.'           {
1999                 $$ = scm_makfrom0str ("Dot");
2000         }
2001         | '_' {
2002                 $$ = scm_makfrom0str ("Underscore");
2003         }
2004         ;
2005
2006 script_dir:
2007         '_'     { $$ = DOWN; }
2008         | '^'   { $$ = UP; }
2009         | '-'   { $$ = CENTER; }
2010         ;
2011
2012
2013 absolute_pitch:
2014         steno_pitch     {
2015                 $$ = $1;
2016         }
2017         ;
2018
2019 duration_length:
2020         multiplied_duration {
2021                 $$ = $1;
2022         }
2023         ;
2024
2025 optional_notemode_duration:
2026         {
2027                 Duration dd = THIS->default_duration_;
2028                 $$ = dd.smobbed_copy ();
2029
2030                 THIS->beam_check ($$);
2031         }
2032         | multiplied_duration   {
2033                 $$ = $1;
2034                 THIS->default_duration_ = *unsmob_duration ($$);
2035
2036                 THIS->beam_check ($$);
2037         }
2038         ;
2039
2040 steno_duration:
2041         bare_unsigned dots              {
2042                 int len = 0;
2043                 if (!is_duration ($1))
2044                         THIS->parser_error (_f ("not a duration: %d", $1));
2045                 else
2046                         len = intlog2 ($1);
2047
2048                 $$ = Duration (len, $2).smobbed_copy ();
2049         }
2050         | DURATION_IDENTIFIER dots      {
2051                 Duration *d = unsmob_duration ($1);
2052                 Duration k (d->duration_log (), d->dot_count () + $2);
2053                 *d = k;
2054                 $$ = $1;
2055         }
2056         ;
2057
2058 multiplied_duration:
2059         steno_duration {
2060                 $$ = $1;
2061         }
2062         | multiplied_duration '*' bare_unsigned {
2063                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
2064         }
2065         | multiplied_duration '*' FRACTION {
2066                 Rational  m (scm_to_int (scm_car ($3)), scm_to_int (scm_cdr ($3)));
2067
2068                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
2069         }
2070         ;
2071
2072 fraction:
2073         FRACTION { $$ = $1; }
2074         | UNSIGNED '/' UNSIGNED {
2075                 $$ = scm_cons (scm_int2num ($1), scm_int2num ($3));
2076         }
2077         ;
2078
2079 dots:
2080         /* empty */     {
2081                 $$ = 0;
2082         }
2083         | dots '.' {
2084                 $$ ++;
2085         }
2086         ;
2087
2088 tremolo_type:
2089         ':'     {
2090                 $$ = 0;
2091         }
2092         | ':' bare_unsigned {
2093                 if (!is_duration ($2))
2094                         THIS->parser_error (_f ("not a duration: %d", $2));
2095                 $$ = $2;
2096         }
2097         ;
2098
2099 bass_number:
2100         DIGIT   {
2101                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2102                 $$ = scm_list_2 (ly_scheme_function ("number-markup"),
2103                                 $$);
2104         }
2105         | UNSIGNED {
2106                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2107                 $$ = scm_list_2 (ly_scheme_function ("number-markup"),
2108                                 $$);
2109         }
2110         | STRING { $$ = $1; }
2111         ;
2112
2113 bass_mod:
2114         '-'     { $$ = -2; }
2115         | '+'   { $$ = 2; }
2116         | '!'   { $$ = 0; }
2117         ;
2118
2119 bass_figure:
2120         FIGURE_SPACE {
2121                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2122                 $$ = bfr->self_scm ();
2123                 scm_gc_unprotect_object ($$);
2124         }
2125         | bass_number  {
2126                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2127                 $$ = bfr->self_scm ();
2128
2129                 bfr->set_property ("figure", $1);
2130
2131                 scm_gc_unprotect_object ($$);
2132         }
2133         | bass_figure bass_mod {
2134                 Music *m = unsmob_music ($1);
2135                 if ($2) {
2136                         SCM salter = m->get_property ("alteration");
2137                         int alter = scm_is_number (salter) ? scm_to_int (salter) : 0;
2138                         m->set_property ("alteration",
2139                                 scm_int2num (alter + $2));
2140                 } else {
2141                         m->set_property ("alteration", scm_int2num (0));
2142                 }
2143         }
2144         ;
2145
2146 br_bass_figure:
2147         '[' bass_figure {
2148                 $$ = $2;
2149                 unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
2150         }
2151         | bass_figure   {
2152                 $$ = $1;
2153         }
2154         | br_bass_figure ']' {
2155                 $$ = $1;
2156                 unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
2157         }
2158         ;
2159
2160 figure_list:
2161         /**/            {
2162                 $$ = SCM_EOL;
2163         }
2164         | figure_list br_bass_figure {
2165                 $$ = scm_cons ($2, $1);
2166         }
2167         ;
2168
2169 figure_spec:
2170         FIGURE_OPEN figure_list FIGURE_CLOSE {
2171                 Music *m = MY_MAKE_MUSIC ("EventChord");
2172                 $2 = scm_reverse_x ($2, SCM_EOL);
2173                 m->set_property ("elements", $2);
2174                 $$ = m->self_scm ();
2175         }
2176         ;
2177
2178
2179 optional_rest:
2180         /**/   { $$ = 0; }
2181         | REST { $$ = 1; }
2182         ;
2183
2184 simple_element:
2185         pitch exclamations questions octave_check optional_notemode_duration optional_rest {
2186
2187                 Input i = THIS->pop_spot ();
2188                 if (!THIS->lexer_->is_note_state ())
2189                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
2190
2191                 Music *n = 0;
2192                 if ($6)
2193                         n = MY_MAKE_MUSIC ("RestEvent");
2194                 else
2195                         n = MY_MAKE_MUSIC ("NoteEvent");
2196
2197                 n->set_property ("pitch", $1);
2198                 n->set_property ("duration", $5);
2199
2200                 if (scm_is_number ($4))
2201                 {
2202                         int q = scm_to_int ($4);
2203                         n->set_property ("absolute-octave", scm_int2num (q-1));
2204                 }
2205
2206                 if ($3 % 2)
2207                         n->set_property ("cautionary", SCM_BOOL_T);
2208                 if ($2 % 2 || $3 % 2)
2209                         n->set_property ("force-accidental", SCM_BOOL_T);
2210
2211                 Music *v = MY_MAKE_MUSIC ("EventChord");
2212                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2213                 scm_gc_unprotect_object (n->self_scm ());
2214
2215                 v->set_spot (i);
2216                 n->set_spot (i);
2217                 $$ = v;
2218         }
2219         | DRUM_PITCH optional_notemode_duration {
2220                 Input i = THIS->pop_spot ();
2221
2222                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
2223                 n->set_property ("duration", $2);
2224                 n->set_property ("drum-type", $1);
2225
2226                 Music *v = MY_MAKE_MUSIC ("EventChord");
2227                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2228                 scm_gc_unprotect_object (n->self_scm ());
2229                 v->set_spot (i);
2230                 n->set_spot (i);
2231                 $$ = v;
2232
2233         }
2234         | figure_spec optional_notemode_duration {
2235                 Music *m = unsmob_music ($1);
2236                 Input i = THIS->pop_spot ();
2237                 m->set_spot (i);
2238                 for (SCM s = m->get_property ("elements"); scm_is_pair (s); s = scm_cdr (s))
2239                 {
2240                         unsmob_music (scm_car (s))->set_property ("duration", $2);
2241                 }
2242                 $$ = m;
2243         }
2244         | RESTNAME optional_notemode_duration           {
2245
2246                 Input i = THIS->pop_spot ();
2247                 Music *ev = 0;
2248                 if (ly_scm2string ($1) == "s") {
2249                         /* Space */
2250                         ev = MY_MAKE_MUSIC ("SkipEvent");
2251                   }
2252                 else {
2253                         ev = MY_MAKE_MUSIC ("RestEvent");
2254
2255                     }
2256                 ev->set_property ("duration", $2);
2257                 ev->set_spot (i);
2258                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2259                 velt->set_property ("elements", scm_list_1 (ev->self_scm ()));
2260                 velt->set_spot (i);
2261
2262                 scm_gc_unprotect_object (ev->self_scm ());
2263
2264                 $$ = velt;
2265         }
2266         | MULTI_MEASURE_REST optional_notemode_duration         {
2267                 THIS->pop_spot ();
2268
2269                 SCM proc = ly_scheme_function ("make-multi-measure-rest");
2270                 SCM mus = scm_call_2 (proc, $2,
2271                         make_input (THIS->here_input ()));
2272                 scm_gc_protect_object (mus);
2273                 $$ = unsmob_music (mus);
2274         }
2275
2276         | lyric_element optional_notemode_duration      {
2277                 Input i = THIS->pop_spot ();
2278                 if (!THIS->lexer_->is_lyric_state ())
2279                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
2280
2281                 Music *lreq = MY_MAKE_MUSIC ("LyricEvent");
2282                 lreq->set_property ("text", $1);
2283                 lreq->set_property ("duration",$2);
2284                 lreq->set_spot (i);
2285                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2286                 velt->set_property ("elements", scm_list_1 (lreq->self_scm ()));
2287
2288                 $$= velt;
2289         }
2290         | new_chord {
2291                 THIS->pop_spot ();
2292
2293                 if (!THIS->lexer_->is_chord_state ())
2294                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
2295                 $$ = unsmob_music ($1);
2296         }
2297         ;
2298
2299 lyric_element:
2300         /* FIXME: lyric flavoured markup would be better */
2301         full_markup {
2302                 $$ = $1;
2303         }
2304         | LYRICS_STRING {
2305                 $$ = make_simple_markup (THIS->lexer_->encoding (), $1);
2306         }
2307         ;
2308
2309 new_chord:
2310         steno_tonic_pitch optional_notemode_duration   {
2311                 $$ = make_chord ($1, $2, SCM_EOL);
2312         }
2313         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2314                 SCM its = scm_reverse_x ($4, SCM_EOL);
2315                 $$ = make_chord ($1, $2, scm_cons ($3, its));
2316         }
2317         ;
2318
2319 chord_items:
2320         /**/ {
2321                 $$ = SCM_EOL;
2322         }
2323         | chord_items chord_item {
2324                 $$ = scm_cons ($2, $$);
2325         }
2326         ;
2327
2328 chord_separator:
2329         CHORD_COLON {
2330                 $$ = ly_symbol2scm ("chord-colon");
2331         }
2332         | CHORD_CARET {
2333                 $$ = ly_symbol2scm ("chord-caret");
2334         }
2335         | CHORD_SLASH steno_tonic_pitch {
2336                 $$ = scm_list_2 (ly_symbol2scm ("chord-slash"), $2);
2337         }
2338         | CHORD_BASS steno_tonic_pitch {
2339                 $$ = scm_list_2 (ly_symbol2scm ("chord-bass"), $2);
2340         }
2341         ;
2342
2343 chord_item:
2344         chord_separator {
2345                 $$ = $1;
2346         }
2347         | step_numbers {
2348                 $$ = scm_reverse_x ($1, SCM_EOL);
2349         }
2350         | CHORD_MODIFIER  {
2351                 $$ = $1;
2352         }
2353         ;
2354
2355 step_numbers:
2356         step_number { $$ = scm_cons ($1, SCM_EOL); }
2357         | step_numbers '.' step_number {
2358                 $$ = scm_cons ($3, $$);
2359         }
2360         ;
2361
2362 step_number:
2363         bare_unsigned {
2364                 $$ = make_chord_step ($1, 0);
2365         }
2366         | bare_unsigned '+' {
2367                 $$ = make_chord_step ($1, SHARP);
2368         }
2369         | bare_unsigned CHORD_MINUS {
2370                 $$ = make_chord_step ($1, FLAT);
2371         }
2372         ;
2373
2374 /*
2375         UTILITIES
2376
2377 TODO: should deprecate in favor of Scheme?
2378
2379  */
2380 number_expression:
2381         number_expression '+' number_term {
2382                 $$ = scm_sum ($1, $3);
2383         }
2384         | number_expression '-' number_term {
2385                 $$ = scm_difference ($1, $3);
2386         }
2387         | number_term
2388         ;
2389
2390 number_term:
2391         number_factor {
2392                 $$ = $1;
2393         }
2394         | number_factor '*' number_factor {
2395                 $$ = scm_product ($1, $3);
2396         }
2397         | number_factor '/' number_factor {
2398                 $$ = scm_divide ($1, $3);
2399         }
2400         ;
2401
2402 number_factor:
2403         '-'  number_factor { /* %prec UNARY_MINUS */
2404                 $$ = scm_difference ($2, SCM_UNDEFINED);
2405         }
2406         | bare_number
2407         ;
2408
2409
2410 bare_number:
2411         UNSIGNED        {
2412                 $$ = scm_int2num ($1);
2413         }
2414         | REAL          {
2415                 $$ = $1;
2416         }
2417         | NUMBER_IDENTIFIER             {
2418                 $$ = $1;
2419         }
2420         | REAL NUMBER_IDENTIFIER        {
2421                 $$ = scm_make_real (scm_to_double ($1) *scm_to_double ($2));
2422         }
2423         | UNSIGNED NUMBER_IDENTIFIER    {
2424                 $$ = scm_make_real ($1 *scm_to_double ($2));
2425         }
2426         ;
2427
2428
2429 bare_unsigned:
2430         UNSIGNED {
2431                         $$ = $1;
2432         }
2433         | DIGIT {
2434                 $$ = $1;
2435         }
2436         ;
2437
2438 bare_int:
2439         bare_number {
2440                 if (scm_integer_p ($1) == SCM_BOOL_T)
2441                 {
2442                         int k = scm_to_int ($1);
2443                         $$ = k;
2444                 } else
2445                 {
2446                         THIS->parser_error (_ ("need integer number arg"));
2447                         $$ = 0;
2448                 }
2449         }
2450         | '-' bare_int {
2451                 $$ = -$2;
2452         }
2453         ;
2454
2455 exclamations:
2456                 { $$ = 0; }
2457         | exclamations '!'      { $$ ++; }
2458         ;
2459
2460 questions:
2461                 { $$ = 0; }
2462         | questions '?' { $$ ++; }
2463         ;
2464
2465
2466
2467 full_markup:
2468         MARKUP_IDENTIFIER {
2469                 $$ = $1;
2470         }
2471         | MARKUP
2472                 { THIS->lexer_->push_markup_state (); }
2473         markup
2474                 { $$ = $3;
2475                   THIS->lexer_->pop_state ();
2476                 }
2477         ;
2478
2479
2480 /*
2481 This should be done more dynamically if possible.
2482 */
2483 markup:
2484         STRING {
2485                 $$ = make_simple_markup (THIS->lexer_->encoding (), $1);
2486         }
2487         | MARKUP_HEAD_EMPTY {
2488                 $$ = scm_list_1 ($1);
2489         }
2490         | MARKUP_HEAD_MARKUP0 markup {
2491                 $$ = scm_list_2 ($1, $2);
2492         }
2493         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2494                 $$ = scm_list_3 ($1, $2, $3);
2495         }
2496         | MARKUP_HEAD_SCM0_MARKUP1 SCM_T markup {
2497                 $$ = scm_list_3 ($1, $2, $3);
2498         }
2499         | markup_line {
2500                 $$ = $1;
2501         }
2502         | MARKUP_HEAD_LIST0 markup_list {
2503                 $$ = scm_list_2 ($1,$2);
2504         }
2505         | MARKUP_HEAD_SCM0 embedded_scm {
2506                 $$ = scm_list_2 ($1, $2);
2507         }
2508         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm markup {
2509                 $$ = scm_list_4 ($1, $2, $3, $4);
2510         }
2511         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2512                 $$ = scm_list_4 ($1, $2, $3, $4);
2513         }
2514         | MARKUP_HEAD_SCM0_SCM1 embedded_scm embedded_scm {
2515                 $$ = scm_list_3 ($1, $2, $3);
2516         }
2517         | MARKUP_IDENTIFIER {
2518                 $$ = $1;
2519         }
2520         | STRING_IDENTIFIER {
2521                 $$ = $1;
2522         }
2523         | SCORE {
2524                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
2525                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
2526         } '{' score_body '}' {
2527                 Score * sc = $4;
2528                 $$ = scm_list_2 (ly_scheme_function ("score-markup"), sc->self_scm ());
2529                 scm_gc_unprotect_object (sc->self_scm ());
2530                 THIS->lexer_->pop_state ();
2531         }
2532         ;
2533
2534 markup_list:
2535         chord_open markup_list_body chord_close { $$ = scm_reverse_x ($2, SCM_EOL); }
2536         ;
2537
2538 markup_line:
2539         '{' markup_list_body '}' {
2540                 SCM line = ly_scheme_function ("line-markup");
2541
2542                 $$ = scm_list_2 (line, scm_reverse_x ($2, SCM_EOL));
2543         }
2544         ;
2545
2546 markup_list_body:
2547         /**/ {  $$ = SCM_EOL; }
2548         | markup_list_body markup {
2549                 $$ = scm_cons ($2, $1);
2550         }
2551         ;
2552
2553
2554 %%
2555
2556 void
2557 Lily_parser::set_yydebug (bool )
2558 {
2559 #if 0
2560         yydebug = 1;
2561 #endif
2562 }
2563
2564 void
2565 Lily_parser::do_yyparse ()
2566 {
2567         yyparse ((void*)this);
2568 }
2569
2570
2571 /*
2572 Should make this optional?    It will also complain when you do
2573
2574         [s4]
2575
2576 which is entirely legitimate.
2577
2578 Or we can scrap it. Barchecks should detect wrong durations, and
2579 skipTypesetting speeds it up a lot.
2580 */
2581
2582 void
2583 Lily_parser::beam_check (SCM dur)
2584 {
2585   Duration *d = unsmob_duration (dur);
2586   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2587     {
2588       Music *m = unsmob_music (last_beam_start_);
2589       m->origin ()->warning (_ ("Suspect duration found following this beam"));
2590     }
2591   last_beam_start_ = SCM_EOL;
2592 }
2593
2594
2595
2596
2597 /*
2598
2599 It is a little strange to have this function in this file, but
2600 otherwise, we have to import music classes into the lexer.
2601
2602 */
2603 int
2604 Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
2605 {
2606         if (scm_is_string (sid)) {
2607                 *destination = sid;
2608                 return STRING_IDENTIFIER;
2609         } else if (scm_is_number (sid)) {
2610                 *destination = sid;
2611                 return NUMBER_IDENTIFIER;
2612         } else if (unsmob_context_def (sid)) {
2613                 *destination = unsmob_context_def (sid)->clone_scm ();
2614                 return CONTEXT_DEF_IDENTIFIER;
2615         } else if (unsmob_score (sid)) {
2616                 Score *score = new Score (*unsmob_score (sid));
2617                 *destination = score->self_scm ();
2618                 return SCORE_IDENTIFIER;
2619         } else if (Music *mus = unsmob_music (sid)) {
2620                 mus = mus->clone ();
2621                 *destination = mus->self_scm ();
2622                 unsmob_music (*destination)->
2623                         set_property ("origin", make_input (last_input_));
2624                 return dynamic_cast<Event*> (mus)
2625                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2626         } else if (unsmob_duration (sid)) {
2627                 *destination = unsmob_duration (sid)->smobbed_copy ();
2628                 return DURATION_IDENTIFIER;
2629         } else if (unsmob_output_def (sid)) {
2630                 Output_def *p = unsmob_output_def (sid);
2631                 p = p->clone ();
2632
2633                 *destination = p->self_scm ();
2634                 return OUTPUT_DEF_IDENTIFIER;
2635         } else if (Text_interface::markup_p (sid)) {
2636                 *destination = sid;
2637                 return MARKUP_IDENTIFIER;
2638         }
2639
2640         return -1;
2641 }
2642
2643 Music *
2644 property_op_to_music (SCM op)
2645 {
2646         Music *m = 0;
2647         SCM tag = scm_car (op);
2648         SCM symbol = scm_cadr (op);
2649         SCM args = scm_cddr (op);
2650         SCM grob_val = SCM_UNDEFINED;
2651         SCM grob_sym = SCM_UNDEFINED;
2652         SCM val = SCM_UNDEFINED;
2653
2654         if (tag == ly_symbol2scm ("assign"))
2655                 {
2656                 m = MY_MAKE_MUSIC ("PropertySet");
2657                 val = scm_car (args);
2658                 }
2659         else if (tag == ly_symbol2scm ("unset"))
2660                 m = MY_MAKE_MUSIC ("PropertyUnset");
2661         else if (tag == ly_symbol2scm ("poppush")
2662                  || tag == ly_symbol2scm ("push"))
2663                 {
2664                 m = MY_MAKE_MUSIC ("OverrideProperty");
2665                 grob_sym = scm_car (args);
2666                 grob_val = scm_cadr (args);
2667                 }
2668         else if (tag == ly_symbol2scm ("pop")) {
2669                 m = MY_MAKE_MUSIC ("RevertProperty");
2670                 grob_sym = scm_car (args);
2671                 }
2672
2673         m->set_property ("symbol", symbol);
2674
2675         if (val != SCM_UNDEFINED)
2676                 m->set_property ("value", val);
2677         if (grob_val != SCM_UNDEFINED)
2678                 m->set_property ("grob-value", grob_val);
2679
2680         if (grob_sym != SCM_UNDEFINED)
2681                 {
2682                 bool itc = internal_type_checking_global_b;
2683                 /* UGH.
2684                 */
2685                 bool autobeam = ly_c_equal_p (symbol, ly_symbol2scm ("autoBeamSettings"));
2686                 if (autobeam)
2687                         internal_type_checking_global_b = false;
2688                 m->set_property ("grob-property", grob_sym);
2689                 if (autobeam)
2690                         internal_type_checking_global_b = itc;
2691                 }
2692
2693         if (tag == ly_symbol2scm ("poppush"))
2694                 m->set_property ("pop-first", SCM_BOOL_T);
2695
2696
2697         return m;
2698 }
2699
2700 Music*
2701 context_spec_music (SCM type, SCM id, Music *m, SCM ops)
2702 {
2703         Music *csm = MY_MAKE_MUSIC ("ContextSpeccedMusic");
2704
2705         csm->set_property ("element", m->self_scm ());
2706         scm_gc_unprotect_object (m->self_scm ());
2707
2708         csm->set_property ("context-type",
2709                 scm_is_symbol (type) ? type : scm_string_to_symbol (type));
2710         csm->set_property ("property-operations", ops);
2711
2712         if (scm_is_string (id))
2713                 csm->set_property ("context-id", id);
2714         return csm;
2715 }
2716
2717 SCM
2718 get_next_unique_context_id ()
2719 {
2720         return scm_makfrom0str ("$uniqueContextId");
2721 }
2722
2723
2724 SCM
2725 get_next_unique_lyrics_context_id ()
2726 {
2727         static int new_context_count;
2728         char s[128];
2729         snprintf (s, 1024, "uniqueContext%d", new_context_count++);
2730         return scm_makfrom0str (s);
2731 }