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