lily/parser.yy

   1 %{ // -*-Fundamental-*-
   2
   3 /*
   4   parser.yy -- Bison/C++ parser for LilyPond
   5
   6   source file of the GNU LilyPond music typesetter
   7
   8   (c) 1997--2004 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9                  Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13
  14 TODO:
  15
  16 * The rules for who is protecting what are very shady. Uniformise
  17   this.
  18
  19 * There are too many lexical modes?
  20
  21 */
  22
  23 #include <ctype.h>
  24 #include <stdlib.h>
  25 #include <stdio.h>
  26
  27
  28 #include "book.hh"
  29
  30 #include "context-def.hh"
  31 #include "dimensions.hh"
  32 #include "event.hh"
  33 #include "file-path.hh"
  34 #include "input-smob.hh"
  35 #include "input.hh"
  36 #include "lily-guile.hh"
  37 #include "lilypond-input-version.hh"
  38 #include "ly-module.hh"
  39 #include "main.hh"
  40 #include "misc.hh"
  41 #include "music-list.hh"
  42 #include "music-sequence.hh"
  43 #include "lily-lexer.hh"
  44 #include "lily-parser.hh"
  45 #include "paper-book.hh"
  46 #include "output-def.hh"
  47 #include "scm-hash.hh"
  48 #include "scm-option.hh"
  49 #include "score.hh"
  50 #include "text-item.hh"
  51 #include "warn.hh"
  52
  53 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  54
  55 Music *property_op_to_music (SCM op);
  56 Music *context_spec_music (SCM type, SCM id, Music *m, SCM ops);
  57 SCM get_next_unique_context_id ();
  58 SCM get_next_unique_lyrics_context_id ();
  59
  60 #define YYERROR_VERBOSE 1
  61
  62 #define YYPARSE_PARAM my_lily_parser
  63 #define YYLEX_PARAM my_lily_parser
  64 #define THIS\
  65         ((Lily_parser *) my_lily_parser)
  66
  67 #define yyerror THIS->parser_error
  68
  69 /* Add symbols to the TAGS field of a music object.  */
  70
  71 void
  72 tag_music (Music *m, SCM tag, Input ip)
  73 {
  74         SCM tags = m->get_property ("tags");
  75         if (scm_is_symbol (tag))
  76                 tags = scm_cons (tag, tags);
  77         else if (ly_c_list_p (tag))
  78                 tags = ly_append2 (tag, tags);
  79         else
  80                 ip.warning (_ ("Tag must be symbol or list of symbols."));
  81
  82         m->set_property ("tags", tags);
  83 }
  84
  85 bool
  86 is_regular_identifier (SCM id)
  87 {
  88   String str = ly_scm2string (id);
  89   char const *s = str.to_str0 ();
  90
  91   bool v = true;
  92 #if 0
  93   isalpha (*s);
  94   s++;
  95 #endif
  96   while (*s && v)
  97    {
  98         v = v && isalnum (*s);
  99         s++;
 100    }
 101   return v;
 102 }
 103
 104
 105 SCM
 106 get_first_context_id (SCM type, Music *m)
 107 {
 108         SCM id = m->get_property ("context-id");
 109         if (SCM_BOOL_T == scm_equal_p (m->get_property ("context-type"), type)
 110             && scm_is_string (m->get_property ("context-id"))
 111             && scm_c_string_length (id) > 0)
 112         {
 113                 return id;
 114         }
 115         return SCM_EOL;
 116 }
 117
 118 SCM
 119 make_simple_markup (SCM encoding, SCM a)
 120 {
 121         SCM simple = ly_scheme_function ("simple-markup");
 122         if (scm_is_symbol (encoding))
 123                 return scm_list_3 (ly_scheme_function ("encoded-simple-markup"),
 124                            encoding, a);
 125         return scm_list_2 (simple, a);
 126 }
 127
 128 bool
 129 is_duration (int t)
 130 {
 131   return t && t == 1 << intlog2 (t);
 132 }
 133
 134 void
 135 set_music_properties (Music *p, SCM a)
 136 {
 137   for (SCM k = a; scm_is_pair (k); k = scm_cdr (k))
 138         p->internal_set_property (scm_caar (k), scm_cdar (k));
 139 }
 140
 141 SCM
 142 make_chord_step (int step, int alter)
 143 {
 144         if (step == 7)
 145                 alter += FLAT;
 146
 147         while (step < 0)
 148                 step += 7;
 149         Pitch m ((step -1) / 7, (step - 1) % 7, alter);
 150         return m.smobbed_copy ();
 151 }
 152
 153
 154 SCM
 155 make_chord (SCM pitch, SCM dur, SCM modification_list)
 156 {
 157         SCM chord_ctor = ly_scheme_function ("construct-chord");
 158         SCM ch = scm_call_3 (chord_ctor, pitch, dur, modification_list);
 159         scm_gc_protect_object (ch);
 160         return ch;
 161 }
 162
 163 /* Todo: actually also use apply iso. call too ...  */
 164 bool
 165 ly_input_procedure_p (SCM x)
 166 {
 167         return ly_c_procedure_p (x)
 168                 || (scm_is_pair (x) && ly_c_procedure_p (scm_car (x)));
 169 }
 170
 171 Music*
 172 set_property_music (SCM sym, SCM value)
 173 {
 174         Music *p = MY_MAKE_MUSIC ("PropertySet");
 175         p->set_property ("symbol", sym);
 176         p->set_property ("value", value);
 177         return p;
 178 }
 179
 180 Music*
 181 make_music_relative (Pitch start, Music *music)
 182 {
 183         Music *relative = MY_MAKE_MUSIC ("RelativeOctaveMusic");
 184         relative->set_property ("element", music->self_scm ());
 185
 186         Pitch last = music->to_relative_octave (start);
 187         if (lily_1_8_relative)
 188                 music->set_property ("last-pitch", last.smobbed_copy ());
 189         return relative;
 190 }
 191
 192 Music*
 193 make_lyric_combine_music (SCM name, Music *music)
 194 {
 195         Music *combine = MY_MAKE_MUSIC ("NewLyricCombineMusic");
 196         combine->set_property ("element", music->self_scm ());
 197         combine->set_property ("associated-context", name);
 198         return combine;
 199 }
 200
 201 %}
 202
 203 /* We use SCMs to do strings, because it saves us the trouble of
 204 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 205 of the parse stack onto the heap. */
 206
 207 %left ADDLYRICS
 208
 209 %union {
 210         Book *book;
 211         Output_def *outputdef;
 212         SCM scm;
 213         String *string;
 214         Music *music;
 215         Score *score;
 216         int i;
 217 }
 218 %{
 219
 220 int
 221 yylex (YYSTYPE *s, void *v)
 222 {
 223         Lily_parser *pars = (Lily_parser*) v;
 224         Lily_lexer *lex = pars->lexer_;
 225
 226         lex->lexval = (void*) s;
 227         lex->prepare_for_next_token ();
 228         return lex->yylex ();
 229 }
 230
 231
 232 %}
 233
 234 %expect 3
 235
 236 /*
 237   Three shift/reduce problems:
 238
 239 2. \markup identifier.
 240
 241   (what? --hwn)
 242
 243 3. \markup { }
 244
 245   (what? --hwn)
 246
 247
 248 4.  \repeat
 249         \repeat .. \alternative
 250
 251
 252     \repeat { \repeat .. \alternative }
 253
 254 or
 255
 256     \repeat { \repeat } \alternative
 257
 258 )
 259  */
 260
 261
 262 %pure_parser
 263
 264 %token ACCEPTS
 265 %token ADDQUOTE
 266 %token LYRICSTO
 267 %token ALIAS
 268 %token ALTERNATIVE
 269 %token BAR
 270 %token BOOK
 271 %token CHANGE
 272 %token CHORDMODIFIERS
 273 %token CHORDS
 274 %token CHORDMODE
 275 %token DOUBLE_ANGLE_OPEN
 276 %token DOUBLE_ANGLE_CLOSE
 277 %token CLEF
 278 %token COMMANDSPANREQUEST
 279 %token CONSISTS
 280 %token CONTEXT
 281 %token DEFAULT
 282 %token DENIES
 283 %token DESCRIPTION
 284 %token EXTENDER
 285 %token FIGURES
 286 %token FIGUREMODE
 287 %token FIGURE_OPEN FIGURE_CLOSE
 288 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 289 %token GROBDESCRIPTIONS
 290 %token HEADER
 291 %token HYPHEN
 292 %token INVALID
 293 %token KEY
 294 %token LAYOUT
 295 %token LYRICS
 296 %token LYRICMODE
 297 %token MARK
 298 %token MIDI
 299 %token MULTI_MEASURE_REST
 300 %token NAME
 301 %token NEWCONTEXT
 302 %token NOTEMODE
 303 %token OBJECTID
 304 %token OCTAVE
 305 %token ONCE
 306 %token OVERRIDE SET REVERT
 307 %token PAPER
 308 %token PARTIAL
 309 %token QUOTE
 310 %token RELATIVE
 311 %token REMOVE
 312 %token REPEAT
 313 %token REST
 314 %token SCM_T
 315 %token SCORE
 316 %token SEQUENTIAL
 317 %token ADDLYRICS
 318 %token SIMULTANEOUS
 319 %token SKIP
 320 %token SPANREQUEST
 321 %token TAG
 322 %token TEMPO
 323 %token TIMES
 324 %token TIME_T
 325 %token TRANSPOSE
 326 %token TRANSPOSITION
 327 %token TYPE
 328 %token UNSET
 329 %token WITH
 330 %token MARKUP
 331
 332 /* escaped */
 333 /* FIXME: this sucks.  The user will get to see these names:
 334     syntax error, unexpected E_CHAR:
 335                 \
 336                  %%
 337   */
 338
 339 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 340 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 341 %token E_BACKSLASH
 342 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 343 %token FIGURE_SPACE
 344
 345 %token <i>      DIGIT
 346 %token <i>      UNSIGNED
 347 %token <i> E_UNSIGNED
 348 %token <id>     IDENTIFIER
 349 %token <scm>    CHORDMODIFIER_PITCH
 350 %token <scm>    DRUM_PITCH
 351 %token <scm>    DURATION_IDENTIFIER
 352 %token <scm>    EVENT_IDENTIFIER
 353 %token <scm>    MUSIC_IDENTIFIER CONTEXT_DEF_IDENTIFIER
 354 %token <scm>    NOTENAME_PITCH
 355 %token <scm>    NUMBER_IDENTIFIER
 356 %token <scm>    OUTPUT_DEF_IDENTIFIER
 357 %token <scm>    RESTNAME
 358 %token <scm> LYRICS_STRING
 359 %token <scm>    SCM_T
 360 %token <scm>    SCORE_IDENTIFIER
 361 %token <scm>    STRING
 362 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 363 %token <scm>    TONICNAME_PITCH
 364 %token <scm>    CHORD_MODIFIER
 365 %token <scm>    FRACTION
 366 %token <scm>   REAL
 367 %token <scm> MARKUP_HEAD_EMPTY
 368 %token <scm> MARKUP_HEAD_MARKUP0
 369 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 370 %token <scm> MARKUP_HEAD_SCM0
 371 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 372 %token <scm> MARKUP_HEAD_SCM0_SCM1
 373 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 374 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 375 %token <scm> MARKUP_IDENTIFIER MARKUP_HEAD_LIST0
 376 %token <scm> MUSIC_FUNCTION
 377 %token <scm> MUSIC_FUNCTION_MUSIC
 378 %token <scm> MUSIC_FUNCTION_MUSIC_MUSIC
 379 %token <scm> MUSIC_FUNCTION_SCM
 380 %token <scm> MUSIC_FUNCTION_SCM_SCM
 381 %token <scm> MUSIC_FUNCTION_SCM_MUSIC
 382 %token <scm> MUSIC_FUNCTION_SCM_MUSIC_MUSIC
 383 %token <scm> MUSIC_FUNCTION_SCM_SCM_MUSIC
 384 %token <scm> MUSIC_FUNCTION_MARKUP
 385 %token <scm> MUSIC_FUNCTION_MARKUP_MARKUP
 386 %token <scm> MUSIC_FUNCTION_MARKUP_MUSIC
 387 %token <scm> MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC
 388 %token <scm> MUSIC_FUNCTION_MARKUP_MARKUP_MUSIC
 389
 390 %token DRUMS
 391 %token DRUMMODE
 392
 393
 394 %type <book>    book_block book_body
 395 %type <i>       bare_int  bare_unsigned
 396 %type <i>       exclamations questions dots optional_rest
 397 %type <i>       script_dir
 398 %type <i>       sub_quotes sup_quotes
 399 %type <i>       tremolo_type
 400 %type <i>       bass_mod
 401
 402 %type <music>   Composite_music Simple_music Prefix_composite_music Generic_prefix_music
 403 %type <music>   Grouped_music_list
 404 %type <music>   Music Sequential_music Simultaneous_music
 405 %type <music>   Repeated_music
 406 %type <music>   command_req
 407 %type <music>   gen_text_def direction_less_event direction_reqd_event
 408 %type <music>   music_property_def context_change
 409 %type <music>   note_chord_element chord_body chord_body_element
 410 %type <music>   post_event tagged_post_event
 411 %type <music>   relative_music re_rhythmed_music
 412 %type <music>   simple_element event_chord command_element
 413 %type <music>   string_number_event
 414 %type <music>   toplevel_music
 415 %type <music>   tempo_event
 416
 417 %type <outputdef>       output_def_body output_def_head
 418 %type <outputdef> output_def paper_block
 419
 420 %type <scm>     Music_list
 421 %type <scm>     chord_body_elements
 422 %type <scm>     chord_item chord_items chord_separator new_chord
 423 %type <scm>     context_def_spec_block context_def_spec_body
 424 %type <scm>     context_mod context_def_mod optional_context_mod
 425 %type <scm>     context_prop_spec
 426 %type <scm>     direction_less_char
 427 %type <scm>     duration_length fraction
 428 %type <scm>     embedded_scm scalar
 429 %type <scm>     identifier_init
 430 %type <scm>     lilypond_header lilypond_header_body
 431 %type <scm>     new_lyrics
 432 %type <scm>     post_events
 433 %type <scm>     property_operation
 434 %type <scm>     script_abbreviation
 435 %type <scm>     simple_string
 436 %type <scm>     steno_pitch pitch absolute_pitch pitch_also_in_chords
 437 %type <scm>     steno_tonic_pitch
 438 %type <scm>     step_number step_numbers
 439 %type <scm>     string bare_number number_expression number_term number_factor
 440 %type <scm>     bass_number br_bass_figure bass_figure figure_list figure_spec
 441 %type <scm>     context_mod_list
 442 %type <scm>     octave_check
 443 %type <scm>     steno_duration optional_notemode_duration multiplied_duration
 444 %type <scm>     Generic_prefix_music_scm
 445 %type <scm>     lyric_element
 446 %type <scm>     Alternative_music
 447 %type <scm>     full_markup markup_composed_list markup_braced_list markup_braced_list_body markup_head_1_item markup_head_1_list markup simple_markup markup_top
 448 %type <scm>     mode_changing_head
 449 %type <scm>     mode_changing_head_with_context
 450 %type <scm>     object_id_setting
 451
 452 %type <score>   score_block score_body
 453
 454
 455 %left '-' '+'
 456
 457 /* We don't assign precedence to / and *, because we might need varied
 458 prec levels in different prods */
 459
 460 %left UNARY_MINUS
 461
 462 %%
 463
 464 lilypond:       /* empty */
 465         | lilypond toplevel_expression {
 466         }
 467         | lilypond assignment {
 468         }
 469         | lilypond error {
 470                 THIS->error_level_ = 1;
 471         }
 472         | lilypond INVALID      {
 473                 THIS->error_level_ = 1;
 474         }
 475         ;
 476
 477
 478 object_id_setting:
 479         OBJECTID STRING { $$ = $2; }
 480         ;
 481
 482 toplevel_expression:
 483         lilypond_header {
 484                 THIS->lexer_->set_identifier (ly_symbol2scm ("$globalheader"), $1);
 485         }
 486         | add_quote {
 487
 488         }
 489         | book_block {
 490                 Book *book = $1;
 491                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-book-handler");
 492                 scm_call_2 (proc, THIS->self_scm (), book->self_scm ());
 493                 scm_gc_unprotect_object (book->self_scm ());
 494         }
 495         | score_block {
 496                 Score *score = $1;
 497
 498                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-score-handler");
 499                 scm_call_2 (proc, THIS->self_scm (), score->self_scm ());
 500                 scm_gc_unprotect_object (score->self_scm ());
 501         }
 502         | toplevel_music {
 503                 Music *music = $1;
 504                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-music-handler");
 505                 scm_call_2 (proc, THIS->self_scm (), music->self_scm ());
 506                 scm_gc_unprotect_object (music->self_scm ());
 507         }
 508         | output_def {
 509                 SCM id = SCM_EOL;
 510                 Output_def * od = $1;
 511
 512                 if ($1->c_variable ("is-paper") == SCM_BOOL_T)
 513                         id = ly_symbol2scm ("$defaultpaper");
 514                 else if ($1->c_variable ("is-midi") == SCM_BOOL_T)
 515                         id = ly_symbol2scm ("$defaultmidi");
 516                 else if ($1->c_variable ("is-layout") == SCM_BOOL_T)
 517                         id = ly_symbol2scm ("$defaultlayout");
 518
 519                 THIS->lexer_->set_identifier (id, od->self_scm ());
 520                 scm_gc_unprotect_object (od->self_scm ());
 521         }
 522         ;
 523
 524 toplevel_music:
 525         Composite_music {
 526         }
 527         ;
 528
 529 embedded_scm:
 530         SCM_T
 531         | SCM_IDENTIFIER
 532         ;
 533
 534
 535 lilypond_header_body:
 536         {
 537                 $$ = ly_make_anonymous_module (safe_global_b);
 538                 THIS->lexer_->add_scope ($$);
 539         }
 540         | lilypond_header_body assignment  {
 541
 542         }
 543         ;
 544
 545 lilypond_header:
 546         HEADER '{' lilypond_header_body '}'     {
 547                 $$ = THIS->lexer_->remove_scope ();
 548         }
 549         ;
 550
 551
 552 /*
 553         DECLARATIONS
 554 */
 555 assignment:
 556         STRING {
 557                 THIS->push_spot ();
 558         }
 559         /* cont */ '=' identifier_init  {
 560
 561         /*
 562                 Should find generic way of associating input with objects.
 563         */
 564                 Input ip = THIS->pop_spot ();
 565
 566                 if (! is_regular_identifier ($1))
 567                 {
 568                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 569                 }
 570
 571                 THIS->lexer_->set_identifier ($1, $4);
 572
 573 /*
 574  TODO: devise standard for protection in parser.
 575
 576   The parser stack lives on the C-stack, which means that
 577 all objects can be unprotected as soon as they're here.
 578
 579 */
 580         }
 581         | embedded_scm { }
 582         ;
 583
 584
 585 identifier_init:
 586         score_block {
 587                 $$ = $1->self_scm ();
 588                 scm_gc_unprotect_object ($$);
 589         }
 590         | output_def {
 591                 $$ = $1->self_scm ();
 592                 scm_gc_unprotect_object ($$);
 593         }
 594         | context_def_spec_block {
 595                 $$ = $1;
 596         }
 597         | Music  {
 598                 $$ = $1->self_scm ();
 599                 scm_gc_unprotect_object ($$);
 600         }
 601         | post_event {
 602                 $$ = $1->self_scm ();
 603                 scm_gc_unprotect_object ($$);
 604         }
 605         | number_expression {
 606                 $$ = $1;
 607         }
 608         | string {
 609                 $$ = $1;
 610         }
 611         | embedded_scm {
 612                 $$ = $1;
 613         }
 614         | full_markup {
 615                 $$ = $1;
 616         }
 617         | DIGIT {
 618                 $$ = scm_int2num ($1);
 619         }
 620         ;
 621
 622 context_def_spec_block:
 623         CONTEXT '{' context_def_spec_body '}'
 624                 {
 625                 $$ = $3;
 626         }
 627         ;
 628
 629 context_def_spec_body:
 630         /**/ {
 631                 $$ = Context_def::make_scm ();
 632                 unsmob_context_def ($$)->set_spot (THIS->here_input ());
 633         }
 634         | CONTEXT_DEF_IDENTIFIER {
 635                 $$ = $1;
 636                 unsmob_context_def ($$)->set_spot (THIS->here_input ());
 637         }
 638         | context_def_spec_body GROBDESCRIPTIONS embedded_scm {
 639                 Context_def*td = unsmob_context_def ($$);
 640
 641                 for (SCM p = $3; scm_is_pair (p); p = scm_cdr (p)) {
 642                         SCM tag = scm_caar (p);
 643
 644                         /* TODO: should make new tag "grob-definition" ? */
 645                         td->add_context_mod (scm_list_3 (ly_symbol2scm ("assign"),
 646                                                         tag, scm_cons (scm_cdar (p), SCM_EOL)));
 647                 }
 648         }
 649         | context_def_spec_body context_mod {
 650                 unsmob_context_def ($$)->add_context_mod ($2);
 651         }
 652         ;
 653
 654
 655
 656 book_block:
 657         BOOK {
 658                 THIS->push_spot ();
 659         }
 660         /*cont*/ '{' book_body '}'      {
 661                 THIS->pop_spot ();
 662                 $$ = $4;
 663         }
 664         ;
 665
 666 /* FIXME:
 667    * Use 'handlers' like for toplevel-* stuff?
 668    * grok \layout and \midi?  */
 669 book_body:
 670         {
 671                 $$ = new Book;
 672                 $$->set_spot (THIS->here_input ());
 673                 $$->paper_ = dynamic_cast<Output_def*> (unsmob_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"))->clone ());
 674                 scm_gc_unprotect_object ($$->paper_->self_scm ());
 675                 $$->header_ = THIS->lexer_->lookup_identifier ("$globalheader");
 676         }
 677         | book_body paper_block {
 678                 $$->paper_ = $2;
 679                 scm_gc_unprotect_object ($2->self_scm ());
 680         }
 681         | book_body score_block {
 682                 Score *score = $2;
 683                 $$->add_score (score);
 684         }
 685         | book_body lilypond_header {
 686                 $$->header_ = $2;
 687         }
 688         | book_body error {
 689                 $$->paper_ = 0;
 690                 $$->scores_.clear();
 691         }
 692         | book_body object_id_setting {
 693                 $$->user_key_ = ly_scm2string ($2);
 694         }
 695         ;
 696
 697 score_block:
 698         SCORE {
 699                 THIS->push_spot ();
 700         }
 701         /*cont*/ '{' score_body '}'     {
 702                 THIS->pop_spot ();
 703                 $$ = $4;
 704         }
 705         ;
 706
 707 score_body:
 708         /**/    {
 709                 $$ = new Score;
 710
 711                 $$->set_spot (THIS->here_input ());
 712         }
 713         | SCORE_IDENTIFIER {
 714                 $$ = new Score ( *unsmob_score ($1));
 715                 $$->set_spot (THIS->here_input ());
 716         }
 717         | score_body object_id_setting {
 718                 $$->user_key_ = ly_scm2string ($2);
 719         }
 720         | score_body Music {
 721                 SCM m = $2->self_scm ();
 722                 scm_gc_unprotect_object (m);
 723                 $$->set_music (m, THIS->self_scm ());
 724         }
 725         | score_body lilypond_header    {
 726                 $$->header_ = $2;
 727         }
 728         | score_body output_def {
 729                 if ($2->lookup_variable (ly_symbol2scm ("is-paper")) == SCM_BOOL_T)
 730                 {
 731                         THIS->parser_error (_("\\paper cannot be in \\score. Use \\layout instead"));
 732
 733                 }
 734                 else
 735                 {
 736                         $$->defs_.push ($2);
 737                 }
 738                 scm_gc_unprotect_object ($2->self_scm ());
 739         }
 740         | score_body error {
 741                 $$->error_found_ = true;
 742         }
 743         ;
 744
 745
 746 /*
 747         OUTPUT DEF
 748 */
 749
 750 paper_block:
 751         output_def {
 752                 $$ = $1;
 753                 if ($$->lookup_variable (ly_symbol2scm ("is-paper")) != SCM_BOOL_T)
 754                 {
 755                         THIS->parser_error (_("Need \\paper for paper block."));
 756                         $$ = get_paper (THIS);
 757                 }
 758         }
 759         ;
 760
 761
 762 output_def:
 763         output_def_body '}' {
 764                 $$ = $1;
 765
 766                 THIS->lexer_->remove_scope ();
 767                 THIS->lexer_->pop_state ();
 768         }
 769         ;
 770
 771 output_def_head:
 772         PAPER {
 773                 $$ = get_paper (THIS);
 774                 $$->input_origin_ = THIS->here_input ();
 775                 THIS->lexer_->add_scope ($$->scope_);
 776         }
 777         | MIDI    {
 778                 Output_def *p = get_midi (THIS);
 779                 $$ = p;
 780                 THIS->lexer_->add_scope (p->scope_);
 781         }
 782         | LAYOUT        {
 783                 Output_def *p = get_layout (THIS);
 784
 785                 THIS->lexer_->add_scope (p->scope_);
 786                 $$ = p;
 787         }
 788         ;
 789
 790
 791 output_def_body:
 792         output_def_head '{' {
 793                 $$ = $1;
 794                 $$->input_origin_.set_spot (THIS->here_input ());
 795                 THIS->lexer_->push_initial_state ();
 796         }
 797         | output_def_head '{' OUTPUT_DEF_IDENTIFIER     {
 798                 scm_gc_unprotect_object ($1->self_scm ());
 799                 Output_def *o = unsmob_output_def ($3);
 800                 o->input_origin_.set_spot (THIS->here_input ());
 801                 $$ = o;
 802                 THIS->lexer_->remove_scope ();
 803                 THIS->lexer_->add_scope (o->scope_);
 804                 THIS->lexer_->push_initial_state ();
 805         }
 806         | output_def_body assignment  {
 807
 808         }
 809         | output_def_body context_def_spec_block        {
 810                 assign_context_def ($$, $2);
 811         }
 812         | output_def_body tempo_event  {
 813                 /*
 814                         junk this ? there already is tempo stuff in
 815                         music.
 816                 */
 817                 int m = scm_to_int ($2->get_property ("metronome-count"));
 818                 Duration *d = unsmob_duration ($2->get_property ("tempo-unit"));
 819                 set_tempo ($$, d->get_length (), m);
 820                 scm_gc_unprotect_object ($2->self_scm ());
 821         }
 822         | output_def_body error {
 823
 824         }
 825         ;
 826
 827 tempo_event:
 828         TEMPO steno_duration '=' bare_unsigned  {
 829                 $$ = MY_MAKE_MUSIC ("MetronomeChangeEvent");
 830                 $$->set_property ("tempo-unit", $2);
 831                 $$->set_property ("metronome-count", scm_int2num ( $4));
 832         }
 833         ;
 834
 835 /*
 836 The representation of a  list is the
 837
 838   (LIST . LAST-CONS)
 839
 840  to have efficient append.  */
 841
 842 Music_list:
 843         /* empty */ {
 844                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 845         }
 846         | Music_list Music {
 847                 SCM s = $$;
 848                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 849                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 850
 851                 if (scm_is_pair (scm_cdr (s)))
 852                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 853                 else
 854                         scm_set_car_x (s, c); /* set first cons */
 855                 scm_set_cdr_x (s, c);  /* remember last cell */
 856         }
 857         | Music_list embedded_scm {
 858
 859         }
 860         | Music_list error {
 861                 Music * m = MY_MAKE_MUSIC("Music");
 862                 // ugh. code dup
 863                 m->set_property ("error-found", SCM_BOOL_T);
 864                 SCM s = $$;
 865                 SCM c = scm_cons (m->self_scm (), SCM_EOL);
 866                 scm_gc_unprotect_object (m->self_scm ()); /* UGH */
 867
 868                 if (scm_is_pair (scm_cdr (s)))
 869                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 870                 else
 871                         scm_set_car_x (s, c); /* set first cons */
 872                 scm_set_cdr_x (s, c);  /* remember last cell */
 873         }
 874         ;
 875
 876 Music:
 877         Simple_music
 878         | Composite_music
 879         ;
 880
 881 Alternative_music:
 882         /* empty */ {
 883                 $$ = SCM_EOL;
 884         }
 885         | ALTERNATIVE '{' Music_list '}' {
 886                 $$ = $3;
 887         }
 888         ;
 889
 890
 891 Repeated_music:
 892         REPEAT simple_string bare_unsigned Music Alternative_music
 893         {
 894                 Music *beg = $4;
 895                 int times = $3;
 896                 SCM alts = scm_is_pair ($5) ? scm_car ($5) : SCM_EOL;
 897                 if (times < scm_ilength (alts)) {
 898                   unsmob_music (scm_car (alts))
 899                     ->origin ()->warning (
 900                     _ ("More alternatives than repeats.  Junking excess alternatives."));
 901                   alts = ly_truncate_list (times, alts);
 902                 }
 903
 904
 905                 SCM proc = ly_scheme_function ("make-repeated-music");
 906
 907                 SCM mus = scm_call_1 (proc, $2);
 908                 scm_gc_protect_object (mus); // UGH.
 909                 Music *r = unsmob_music (mus);
 910                 if (beg)
 911                         {
 912                         r-> set_property ("element", beg->self_scm ());
 913                         scm_gc_unprotect_object (beg->self_scm ());
 914                         }
 915                 r->set_property ("repeat-count", scm_int2num (times >? 1));
 916
 917                 r-> set_property ("elements",alts);
 918                 if (ly_c_equal_p ($2, scm_makfrom0str ("tremolo"))) {
 919                         /*
 920                         TODO: move this code to Scheme.
 921                         */
 922
 923                         /*
 924                         we can not get durations and other stuff correct down the line, so we have to
 925                         add to the duration log here.
 926                         */
 927                         SCM func = ly_scheme_function ("shift-duration-log");
 928
 929                         int dots = ($3 % 3) ? 0 : 1;
 930                         int shift = -intlog2 ((dots) ? ($3*2/3) : $3);
 931
 932                         Sequential_music *seq = dynamic_cast<Sequential_music*> ($4);
 933
 934                         if (seq) {
 935                                 int list_len = scm_ilength (seq->music_list ());
 936                                 if (list_len != 2)
 937                                         seq->origin ()->warning ("Chord tremolo must have 2 elements.");
 938                                 shift -= 1;
 939                                 r->compress (Moment (Rational (1, list_len)));
 940                                 }
 941                         scm_call_3 (func, r->self_scm (), scm_int2num (shift),scm_int2num (dots));
 942
 943                 }
 944                 r->set_spot (*$4->origin ());
 945
 946                 $$ = r;
 947         }
 948         ;
 949
 950 Sequential_music:
 951         SEQUENTIAL '{' Music_list '}'           {
 952                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 953                 $$->set_property ("elements", scm_car ($3));
 954                 $$->set_spot (THIS->here_input ());
 955         }
 956         | '{' Music_list '}'            {
 957                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 958                 $$->set_property ("elements", scm_car ($2));
 959                 $$->set_spot (THIS->here_input ());
 960         }
 961         ;
 962
 963 Simultaneous_music:
 964         SIMULTANEOUS '{' Music_list '}'{
 965                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 966                 $$->set_property ("elements", scm_car ($3));
 967                 $$->set_spot (THIS->here_input ());
 968
 969         }
 970         | simul_open Music_list simul_close     {
 971                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 972                 $$->set_property ("elements", scm_car ($2));
 973                 $$->set_spot (THIS->here_input ());
 974         }
 975         ;
 976
 977 Simple_music:
 978         event_chord             { $$ = $1; }
 979         | MUSIC_IDENTIFIER {
 980                 $$ = unsmob_music ($1);
 981         }
 982         | music_property_def
 983         | context_change
 984         ;
 985
 986
 987 optional_context_mod:
 988         /**/ { $$ = SCM_EOL; }
 989         | WITH { THIS->lexer_->push_initial_state (); }
 990         '{' context_mod_list '}'
 991         {
 992                 THIS->lexer_->pop_state ();
 993                 $$ = $4;
 994         }
 995         ;
 996
 997 context_mod_list:
 998         /* */  { $$ = SCM_EOL; }
 999         | context_mod_list context_mod  {
1000                  $$ = scm_cons ($2, $1);
1001         }
1002         ;
1003
1004
1005 Composite_music:
1006         Prefix_composite_music { $$ = $1; }
1007         | Grouped_music_list { $$ = $1; }
1008         ;
1009
1010 Grouped_music_list:
1011         Simultaneous_music              { $$ = $1; }
1012         | Sequential_music              { $$ = $1; }
1013         ;
1014
1015 Generic_prefix_music_scm:
1016         MUSIC_FUNCTION {
1017                 $$ = scm_list_2 ($1, make_input (THIS->here_input ()));
1018         }
1019         | MUSIC_FUNCTION_SCM {
1020                 THIS->push_spot ();
1021         } embedded_scm {
1022                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3);
1023         }
1024         | MUSIC_FUNCTION_MARKUP {
1025                 THIS->push_spot ();
1026         } full_markup {
1027                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3);
1028         }
1029         | MUSIC_FUNCTION_MUSIC {
1030                 THIS->push_spot ();
1031         } Music {
1032                 $$ = scm_list_3 ($1, make_input (THIS->pop_spot ()), $3->self_scm ());
1033                 scm_gc_unprotect_object ($3->self_scm ());
1034         }
1035         | MUSIC_FUNCTION_SCM_MUSIC {
1036                 THIS->push_spot ();
1037         }  embedded_scm Music {
1038                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4->self_scm ());
1039                 scm_gc_unprotect_object ($4->self_scm ());
1040         }
1041         | MUSIC_FUNCTION_SCM_SCM {
1042                 THIS->push_spot ();
1043         }  embedded_scm embedded_scm {
1044                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4);
1045         }
1046         | MUSIC_FUNCTION_SCM_SCM_MUSIC {
1047                 THIS->push_spot ();
1048         }  embedded_scm embedded_scm Music {
1049                 $$ = scm_list_5 ($1, make_input (THIS->pop_spot ()), $3, $4, $5->self_scm ());
1050         }
1051         | MUSIC_FUNCTION_MARKUP_MUSIC {
1052                 THIS->push_spot ();
1053         }  full_markup Music {
1054                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4->self_scm ());
1055                 scm_gc_unprotect_object ($4->self_scm ());
1056         }
1057         | MUSIC_FUNCTION_MARKUP_MARKUP {
1058                 THIS->push_spot ();
1059         }  full_markup full_markup {
1060                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3, $4);
1061         }
1062         | MUSIC_FUNCTION_MUSIC_MUSIC {
1063                 THIS->push_spot ();
1064         }  Music  Music {
1065                 $$ = scm_list_4 ($1, make_input (THIS->pop_spot ()), $3->self_scm (), $4->self_scm ());
1066                 scm_gc_unprotect_object ($3->self_scm ());
1067                 scm_gc_unprotect_object ($4->self_scm ());
1068         }
1069         | MUSIC_FUNCTION_SCM_MUSIC_MUSIC {
1070                 THIS->push_spot ();
1071         } embedded_scm Music Music {
1072                 $$ = scm_list_5 ($1, make_input (THIS->pop_spot ()),
1073                         $3, $4->self_scm (), $5->self_scm ());
1074                 scm_gc_unprotect_object ($5->self_scm ());
1075                 scm_gc_unprotect_object ($4->self_scm ());
1076         }
1077         | MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC {
1078                 THIS->push_spot ();
1079         } full_markup Music Music {
1080                 $$ = scm_list_5 ($1, make_input (THIS->pop_spot ()),
1081                         $3, $4->self_scm (), $5->self_scm ());
1082                 scm_gc_unprotect_object ($5->self_scm ());
1083                 scm_gc_unprotect_object ($4->self_scm ());
1084         }
1085         ;
1086
1087 Generic_prefix_music:
1088         Generic_prefix_music_scm {
1089                 SCM func = scm_car ($1);
1090                 Input *loc = unsmob_input (scm_cadr ($1));
1091                 SCM args = scm_cddr ($1);
1092                 SCM sig = scm_object_property (func, ly_symbol2scm ("music-function-signature"));
1093
1094                 SCM type_check_proc = ly_scheme_function ("type-check-list");
1095                 bool ok  = true;
1096
1097                 if (!to_boolean (scm_call_3  (type_check_proc, scm_cadr ($1), sig, args)))
1098                 {
1099                         THIS->error_level_ = 1;
1100                         ok = false;
1101                 }
1102
1103                 SCM m = SCM_EOL;
1104                 if (ok)
1105                         m = scm_apply_0 (func, scm_cons (THIS->self_scm(),
1106                                                          scm_cdr ($1)));
1107
1108                 if (unsmob_music (m))
1109                         {
1110                         $$ = unsmob_music (m);
1111                         scm_gc_protect_object (m);
1112                         }
1113                 else
1114                         {
1115                         if (ok)
1116                                 loc->error (_ ("Music head function should return Music object."));
1117                         $$ = MY_MAKE_MUSIC ("Music");
1118                         }
1119                 $$->set_spot (*loc);
1120         }
1121         ;
1122
1123
1124 Prefix_composite_music:
1125         Generic_prefix_music {
1126                 $$ = $1;
1127         }
1128         | CONTEXT simple_string '=' simple_string optional_context_mod Music {
1129                 $$ = context_spec_music ($2, $4, $6, $5);
1130
1131         }
1132         | CONTEXT simple_string optional_context_mod Music {
1133                 $$ = context_spec_music ($2, SCM_UNDEFINED, $4, $3);
1134         }
1135         | NEWCONTEXT simple_string optional_context_mod Music {
1136                 $$ = context_spec_music ($2, get_next_unique_context_id (), $4,
1137                         $3);
1138         }
1139
1140         | TIMES {
1141                 THIS->push_spot ();
1142         }
1143         /* CONTINUED */
1144                 fraction Music
1145
1146         {
1147                 int n = scm_to_int (scm_car ($3)); int d = scm_to_int (scm_cdr ($3));
1148                 Music *mp = $4;
1149
1150                 $$= MY_MAKE_MUSIC ("TimeScaledMusic");
1151                 $$->set_spot (THIS->pop_spot ());
1152
1153                 $$->set_property ("element", mp->self_scm ());
1154                 scm_gc_unprotect_object (mp->self_scm ());
1155                 $$->set_property ("numerator", scm_int2num (n));
1156                 $$->set_property ("denominator", scm_int2num (d));
1157                 $$->compress (Moment (Rational (n,d)));
1158
1159         }
1160         | Repeated_music                { $$ = $1; }
1161         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
1162                 $$ = MY_MAKE_MUSIC ("TransposedMusic");
1163                 Music *p = $4;
1164                 Pitch from = *unsmob_pitch ($2);
1165                 Pitch to = *unsmob_pitch ($3);
1166
1167                 p->transpose (pitch_interval (from, to));
1168                 $$->set_property ("element", p->self_scm ());
1169                 scm_gc_unprotect_object (p->self_scm ());
1170         }
1171         | mode_changing_head Grouped_music_list {
1172                 if ($1 == ly_symbol2scm ("chords"))
1173                 {
1174                   Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
1175                   chm->set_property ("element", $2->self_scm ());
1176                   $$ = chm;
1177                   scm_gc_unprotect_object ($2->self_scm ());
1178                 }
1179                 else
1180                 {
1181                   $$ = $2;
1182                 }
1183                 THIS->lexer_->pop_state ();
1184         }
1185         | mode_changing_head_with_context optional_context_mod Grouped_music_list {
1186                 $$ = context_spec_music ($1, get_next_unique_context_id (),
1187                                          $3, $2);
1188                 if ($1 == ly_symbol2scm ("ChordNames"))
1189                 {
1190                   Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
1191                   chm->set_property ("element", $$->self_scm ());
1192                   scm_gc_unprotect_object ($$->self_scm ());
1193                   $$ = chm;
1194                 }
1195                 THIS->lexer_->pop_state ();
1196         }
1197         | relative_music        { $$ = $1; }
1198         | re_rhythmed_music     { $$ = $1; }
1199         | TAG embedded_scm Music {
1200                 tag_music ($3, $2, THIS->here_input ());
1201                 $$ = $3;
1202         }
1203         ;
1204
1205 mode_changing_head:
1206         NOTEMODE {
1207                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
1208                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1209
1210                 $$ = ly_symbol2scm ("notes");
1211         }
1212         | DRUMMODE
1213                 {
1214                 SCM nn = THIS->lexer_->lookup_identifier ("drumPitchNames");
1215                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1216
1217                 $$ = ly_symbol2scm ("drums");
1218         }
1219         | FIGUREMODE {
1220                 THIS->lexer_->push_figuredbass_state ();
1221
1222                 $$ = ly_symbol2scm ("figures");
1223         }
1224         | CHORDMODE {
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                 $$ = ly_symbol2scm ("chords");
1230
1231         }
1232         | LYRICMODE
1233                 { THIS->lexer_->push_lyric_state ();
1234                 $$ = ly_symbol2scm ("lyrics");
1235         }
1236         ;
1237
1238 mode_changing_head_with_context:
1239         DRUMS {
1240                 SCM nn = THIS->lexer_->lookup_identifier ("drumPitchNames");
1241                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1242
1243                 $$ = ly_symbol2scm ("DrumStaff");
1244         }
1245         | FIGURES {
1246                 THIS->lexer_->push_figuredbass_state ();
1247
1248                 $$ = ly_symbol2scm ("FiguredBass");
1249         }
1250         | CHORDS {
1251                 SCM nn = THIS->lexer_->lookup_identifier ("chordmodifiers");
1252                 THIS->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1253                 nn = THIS->lexer_->lookup_identifier ("pitchnames");
1254                 THIS->lexer_->push_chord_state (alist_to_hashq (nn));
1255                 $$ = ly_symbol2scm ("ChordNames");
1256         }
1257         | LYRICS
1258                 { THIS->lexer_->push_lyric_state ();
1259                 $$ = ly_symbol2scm ("Lyrics");
1260         }
1261         ;
1262
1263
1264 relative_music:
1265         RELATIVE absolute_pitch Music {
1266                 Music *m = $3;
1267                 Pitch start = *unsmob_pitch ($2);
1268                 $$ = make_music_relative (start, m);
1269                 scm_gc_unprotect_object (m->self_scm ());
1270         }
1271         | RELATIVE Composite_music {
1272                 Music *m = $2;
1273
1274                 Pitch middle_c (0, 0, 0);
1275                 $$ = make_music_relative (middle_c, m);
1276                 scm_gc_unprotect_object (m->self_scm ());
1277         }
1278         ;
1279
1280 new_lyrics:
1281         ADDLYRICS { THIS->lexer_->push_lyric_state (); }
1282         /*cont */
1283         Grouped_music_list {
1284         /* Can also use Music at the expensive of two S/Rs similar to
1285            \repeat \alternative */
1286                 THIS->lexer_->pop_state ();
1287
1288                 $$ = scm_cons ($3->self_scm (), SCM_EOL);
1289         }
1290         | new_lyrics ADDLYRICS {
1291                 THIS->lexer_->push_lyric_state ();
1292         } Grouped_music_list {
1293                 THIS->lexer_->pop_state ();
1294                 $$ = scm_cons ($4->self_scm (), $1);
1295         }
1296         ;
1297
1298 re_rhythmed_music:
1299         Grouped_music_list new_lyrics {
1300                 Music * voice = $1;
1301                 SCM name = get_first_context_id (scm_makfrom0str ("Voice"), voice);
1302                 if (!scm_is_string (name))
1303                 {
1304                         name = get_next_unique_lyrics_context_id ();
1305                         voice = context_spec_music (scm_makfrom0str ("Voice"),
1306                                                     name,
1307                                                     voice, SCM_EOL);
1308                 }
1309
1310                 SCM context = scm_makfrom0str ("Lyrics");
1311                 Music *all = MY_MAKE_MUSIC ("SimultaneousMusic");
1312
1313                 SCM lst = SCM_EOL;
1314                 for (SCM s = $2; scm_is_pair (s); s = scm_cdr (s))
1315                 {
1316                         Music *music = unsmob_music (scm_car (s));
1317                         Music *com = make_lyric_combine_music (name, music);
1318                         Music *csm = context_spec_music (context,
1319                                 get_next_unique_context_id (), com, SCM_EOL);
1320                         lst = scm_cons (csm->self_scm (), lst);
1321                 }
1322                 all->set_property ("elements", scm_cons (voice->self_scm (),
1323                         lst));
1324                 $$ = all;
1325                 scm_gc_unprotect_object (voice->self_scm ());
1326         }
1327         | LYRICSTO {
1328                 THIS->lexer_->push_lyric_state ();
1329         } simple_string Music {
1330                 THIS->lexer_->pop_state ();
1331                 Music *music = $4;
1332                 SCM name = $3;
1333                 $$ = make_lyric_combine_music (name, music);
1334                 scm_gc_unprotect_object (music->self_scm ());
1335         }
1336         ;
1337
1338 context_change:
1339         CHANGE STRING '=' STRING  {
1340                 Music*t= MY_MAKE_MUSIC ("ContextChange");
1341                 t-> set_property ("change-to-type", scm_string_to_symbol ($2));
1342                 t-> set_property ("change-to-id", $4);
1343
1344                 $$ = t;
1345                 $$->set_spot (THIS->here_input ());
1346         }
1347         ;
1348
1349 property_operation:
1350         STRING '=' scalar {
1351                 $$ = scm_list_3 (ly_symbol2scm ("assign"),
1352                         scm_string_to_symbol ($1), $3);
1353         }
1354         | UNSET simple_string {
1355                 $$ = scm_list_2 (ly_symbol2scm ("unset"),
1356                         scm_string_to_symbol ($2));
1357         }
1358         | OVERRIDE simple_string embedded_scm '=' embedded_scm {
1359                 $$ = scm_list_4 (ly_symbol2scm ("push"),
1360                         scm_string_to_symbol ($2), $3, $5);
1361         }
1362         | REVERT simple_string embedded_scm {
1363                 $$ = scm_list_3 (ly_symbol2scm ("pop"),
1364                         scm_string_to_symbol ($2), $3);
1365         }
1366         ;
1367
1368 context_def_mod:
1369         CONSISTS { $$ = ly_symbol2scm ("consists"); }
1370         | REMOVE { $$ = ly_symbol2scm ("remove"); }
1371
1372         | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
1373         | DENIES { $$ = ly_symbol2scm ("denies"); }
1374
1375         | ALIAS { $$ = ly_symbol2scm ("alias"); }
1376         | TYPE { $$ = ly_symbol2scm ("translator-type"); }
1377         | DESCRIPTION { $$ = ly_symbol2scm ("description"); }
1378         | NAME { $$ = ly_symbol2scm ("context-name"); }
1379         ;
1380
1381 context_mod:
1382         property_operation { $$ = $1; }
1383         | context_def_mod STRING {
1384                 $$ = scm_list_2 ($1, $2);
1385         }
1386         ;
1387
1388 context_prop_spec:
1389         simple_string {
1390                 if (!is_regular_identifier ($1))
1391                 {
1392                         THIS->here_input ().error (_("Grob name should be alphanumeric"));
1393                 }
1394
1395                 $$ = scm_list_2 (ly_symbol2scm ("Bottom"),
1396                         scm_string_to_symbol ($1));
1397         }
1398         | simple_string '.' simple_string {
1399                 $$ = scm_list_2 (scm_string_to_symbol ($1),
1400                         scm_string_to_symbol ($3));
1401         }
1402         ;
1403
1404 music_property_def:
1405         OVERRIDE context_prop_spec embedded_scm '=' scalar {
1406                 $$ = property_op_to_music (scm_list_4 (
1407                         ly_symbol2scm ("poppush"),
1408                         scm_cadr ($2),
1409                         $3, $5));
1410                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1411         }
1412         | REVERT context_prop_spec embedded_scm {
1413                 $$ = property_op_to_music (scm_list_3 (
1414                         ly_symbol2scm ("pop"),
1415                         scm_cadr ($2),
1416                         $3));
1417
1418                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1419         }
1420         | SET context_prop_spec '=' scalar {
1421                 $$ = property_op_to_music (scm_list_3 (
1422                         ly_symbol2scm ("assign"),
1423                         scm_cadr ($2),
1424                         $4));
1425                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1426         }
1427         | UNSET context_prop_spec {
1428                 $$ = property_op_to_music (scm_list_2 (
1429                         ly_symbol2scm ("unset"),
1430                         scm_cadr ($2)));
1431                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1432         }
1433         | ONCE music_property_def {
1434                 SCM e = $2->get_property ("element");
1435                 unsmob_music (e)->set_property ("once", SCM_BOOL_T);
1436                 $$ = $2;
1437
1438         }
1439         ;
1440
1441
1442 string:
1443         STRING {
1444                 $$ = $1;
1445         }
1446         | STRING_IDENTIFIER {
1447                 $$ = $1;
1448         }
1449         | string '+' string {
1450                 $$ = scm_string_append (scm_list_2 ($1, $3));
1451         }
1452         ;
1453
1454 simple_string: STRING {
1455                 $$ = $1;
1456         }
1457         | LYRICS_STRING {
1458                 $$ = $1;
1459         }
1460         ;
1461
1462 scalar: string {
1463                 $$ = $1;
1464         }
1465         | LYRICS_STRING {
1466                 $$ = $1;
1467         }
1468         | bare_int {
1469                 $$ = scm_int2num ($1);
1470         }
1471         | embedded_scm {
1472                 $$ = $1;
1473         }
1474         | full_markup {
1475                 $$ = $1;
1476         }
1477         | DIGIT {
1478                 $$ = scm_int2num ($1);
1479         }
1480         ;
1481
1482 /*
1483
1484 pre_events doesn't contain anything. It is a trick:
1485
1486 Adding pre_events to the simple_element
1487 makes the choice between
1488
1489   string:  STRING
1490
1491 and
1492
1493   simple_element: STRING
1494
1495 a single shift/reduction conflict.
1496
1497 nevertheless, this is not very clean, and we should find a different
1498 solution.
1499
1500 */
1501 pre_events: {
1502                 THIS->push_spot ();
1503         }
1504         ;
1505
1506 event_chord:
1507         pre_events simple_element post_events   {
1508                 SCM elts = $2-> get_property ("elements");
1509
1510                 elts = ly_append2 (elts, scm_reverse_x ($3, SCM_EOL));
1511
1512                 $2->set_property ("elements", elts);
1513                 $$ = $2;
1514         }
1515         | command_element
1516         | note_chord_element
1517         ;
1518
1519
1520 note_chord_element:
1521         chord_body optional_notemode_duration post_events
1522         {
1523                 SCM dur = unsmob_duration ($2)->smobbed_copy ();
1524                 SCM es = $1->get_property ("elements");
1525                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1526
1527                 for (SCM s = es; scm_is_pair (s); s = scm_cdr (s))
1528                   unsmob_music (scm_car (s))->set_property ("duration", dur);
1529                 es = ly_append2 (es, postevs);
1530
1531                 $1-> set_property ("elements", es);
1532                 $$ = $1;
1533         }
1534         ;
1535
1536 chord_open: '<'
1537         ;
1538
1539 chord_close: '>'
1540         ;
1541
1542 simul_open: DOUBLE_ANGLE_OPEN
1543         ;
1544
1545 simul_close: DOUBLE_ANGLE_CLOSE
1546         ;
1547
1548 chord_body:
1549         chord_open chord_body_elements chord_close
1550         {
1551                 $$ = MY_MAKE_MUSIC ("EventChord");
1552                 $$->set_property ("elements",
1553                         scm_reverse_x ($2, SCM_EOL));
1554         }
1555         ;
1556
1557 chord_body_elements:
1558         /* empty */             { $$ = SCM_EOL; }
1559         | chord_body_elements chord_body_element {
1560                 $$ = scm_cons ($2->self_scm (), $1);
1561                 scm_gc_unprotect_object ($2->self_scm ());
1562         }
1563         ;
1564
1565 chord_body_element:
1566         pitch  exclamations questions octave_check post_events
1567         {
1568                 int q = $3;
1569                 int ex = $2;
1570                 SCM check = $4;
1571                 SCM post = $5;
1572
1573                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1574                 n->set_property ("pitch", $1);
1575                 if (q % 2)
1576                         n->set_property ("cautionary", SCM_BOOL_T);
1577                 if (ex % 2 || q % 2)
1578                         n->set_property ("force-accidental", SCM_BOOL_T);
1579
1580                 if (scm_is_pair (post)) {
1581                         SCM arts = scm_reverse_x (post, SCM_EOL);
1582                         n->set_property ("articulations", arts);
1583                 }
1584                 if (scm_is_number (check))
1585                 {
1586                         int q = scm_to_int (check);
1587                         n->set_property ("absolute-octave", scm_int2num (q-1));
1588                 }
1589
1590
1591                 $$ = n;
1592         }
1593         | DRUM_PITCH post_events {
1594                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1595                 n->set_property ("duration", $2);
1596                 n->set_property ("drum-type", $1);
1597                 n->set_spot (THIS->here_input ());
1598
1599                 if (scm_is_pair ($2)) {
1600                         SCM arts = scm_reverse_x ($2, SCM_EOL);
1601                         n->set_property ("articulations", arts);
1602                 }
1603                 $$ = n;
1604         }
1605         ;
1606
1607 add_quote:
1608         ADDQUOTE string Music {
1609                 SCM adder = ly_scheme_function ("add-quotable");
1610
1611                 scm_call_2 (adder, $2, $3->self_scm ());
1612                 scm_gc_unprotect_object ($3->self_scm ());
1613         }
1614         ;
1615
1616 command_element:
1617         command_req {
1618                 $$ = MY_MAKE_MUSIC ("EventChord");
1619                 $$->set_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1620                 scm_gc_unprotect_object ($1->self_scm ());
1621
1622                 $$-> set_spot (THIS->here_input ());
1623                 $1-> set_spot (THIS->here_input ());
1624         }
1625         | SKIP duration_length {
1626                 Music *skip = MY_MAKE_MUSIC ("SkipMusic");
1627                 skip->set_property ("duration", $2);
1628
1629                 $$ = skip;
1630         }
1631         | OCTAVE { THIS->push_spot (); }
1632           pitch {
1633                 Music *m = MY_MAKE_MUSIC ("RelativeOctaveCheck");
1634                 $$ = m;
1635                 $$->set_spot (THIS->pop_spot ());
1636                 $$->set_property ("pitch", $3);
1637         }
1638         | E_LEFTSQUARE {
1639                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1640                 m->set_property ("span-direction", scm_int2num (START));
1641                 m->set_spot (THIS->here_input ());
1642
1643                 $$ = MY_MAKE_MUSIC ("EventChord");
1644                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1645                 scm_gc_unprotect_object (m->self_scm ());
1646                 $$->set_spot (THIS->here_input ());
1647         }
1648         | E_RIGHTSQUARE {
1649                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1650                 m->set_property ("span-direction", scm_int2num (STOP));
1651                 m->set_spot (THIS->here_input ());
1652
1653                 $$ = MY_MAKE_MUSIC ("EventChord");
1654                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1655                 $$->set_spot (THIS->here_input ());
1656                 scm_gc_unprotect_object (m->self_scm ());
1657         }
1658         | E_BACKSLASH {
1659                 $$ = MY_MAKE_MUSIC ("VoiceSeparator");
1660                 $$->set_spot (THIS->here_input ());
1661         }
1662         | '|'      {
1663                 SCM pipe =THIS->lexer_->lookup_identifier ("pipeSymbol");
1664
1665                 if (Music * m = unsmob_music (pipe))
1666                         $$ = m->clone ();
1667                 else
1668                         $$ = MY_MAKE_MUSIC ("BarCheck");
1669
1670                 $$->set_spot (THIS->here_input ());
1671         }
1672         | TRANSPOSITION pitch {
1673                 Pitch middle_c;
1674                 Pitch sounds_as_c = pitch_interval (*unsmob_pitch ($2), middle_c);
1675                 $$ = set_property_music (ly_symbol2scm ("instrumentTransposition"),
1676                                          sounds_as_c.smobbed_copy());
1677                 $$->set_spot (THIS-> here_input ());
1678                 $$ = context_spec_music (ly_symbol2scm ("Staff"), SCM_UNDEFINED,
1679                         $$, SCM_EOL);
1680         }
1681         | BAR STRING                    {
1682                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1683
1684                 Music *csm = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1685                                         t, SCM_EOL);
1686                 $$ = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED, csm, SCM_EOL);
1687                 $$->set_spot (THIS->here_input ());
1688                 t->set_spot (THIS->here_input ());
1689         }
1690         | PARTIAL duration_length       {
1691                 Moment m = - unsmob_duration ($2)->get_length ();
1692                 Music *p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1693                 p->set_spot (THIS->here_input ());
1694                 p = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1695                                         p, SCM_EOL);
1696                 p = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED,
1697                                         p, SCM_EOL);
1698                 $$ = p;
1699         }
1700         | CLEF STRING  {
1701                 SCM proc = ly_scheme_function ("make-clef-set");
1702
1703                 SCM result = scm_call_1 (proc, $2);
1704                 scm_gc_protect_object (result);
1705                 $$ = unsmob_music (result);
1706         }
1707         | TIME_T fraction  {
1708                 SCM proc= ly_scheme_function ("make-time-signature-set");
1709
1710                 SCM result = scm_apply_2   (proc, scm_car ($2), scm_cdr ($2), SCM_EOL);
1711                 scm_gc_protect_object (result);
1712                 $$ = unsmob_music (result);
1713         }
1714         | MARK scalar {
1715                 SCM proc = ly_scheme_function ("make-mark-set");
1716
1717                 SCM result = scm_call_1 (proc, $2);
1718                 scm_gc_protect_object (result);
1719                 $$ = unsmob_music (result);
1720         }
1721         ;
1722
1723 command_req:
1724         E_TILDE {
1725                 $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent");
1726         }
1727         | MARK DEFAULT  {
1728                 Music *m = MY_MAKE_MUSIC ("MarkEvent");
1729                 $$ = m;
1730         }
1731         | tempo_event {
1732                 $$ = $1;
1733         }
1734         | KEY DEFAULT {
1735                 Music *key= MY_MAKE_MUSIC ("KeyChangeEvent");
1736                 $$ = key;
1737         }
1738         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1739
1740                 Music *key= MY_MAKE_MUSIC ("KeyChangeEvent");
1741                 if (scm_ilength ($3) > 0)
1742                 {
1743                         key->set_property ("pitch-alist", $3);
1744                         key->set_property ("tonic", Pitch (0,0,0).smobbed_copy ());
1745                         key->transpose (* unsmob_pitch ($2));
1746                 } else {
1747                         THIS->parser_error (_ ("Second argument must be pitch list."));
1748                 }
1749
1750                 $$ = key;
1751         }
1752         ;
1753
1754 post_events:
1755         /* empty */ {
1756                 $$ = SCM_EOL;
1757         }
1758         | post_events post_event {
1759                 $2->set_spot (THIS->here_input ());
1760                 $$ = scm_cons ($2->self_scm (), $$);
1761                 scm_gc_unprotect_object ($2->self_scm ());
1762         }
1763         | post_events tagged_post_event {
1764                 $2 -> set_spot (THIS->here_input ());
1765                 $$ = scm_cons ($2->self_scm (), $$);
1766                 scm_gc_unprotect_object ($2->self_scm ());
1767         }
1768         ;
1769
1770
1771 tagged_post_event:
1772         '-' TAG embedded_scm post_event {
1773                 tag_music ($4, $3, THIS->here_input ());
1774                 $$ = $4;
1775         }
1776         ;
1777
1778 post_event:
1779         direction_less_event {
1780                 $$ = $1;
1781         }
1782         | HYPHEN {
1783                 if (!THIS->lexer_->is_lyric_state ())
1784                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1785                 $$ = MY_MAKE_MUSIC ("HyphenEvent");
1786         }
1787         | EXTENDER {
1788                 if (!THIS->lexer_->is_lyric_state ())
1789                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1790                 $$ = MY_MAKE_MUSIC ("ExtenderEvent");
1791         }
1792         | script_dir direction_reqd_event {
1793                 if ($1)
1794                         $2->set_property ("direction", scm_int2num ($1));
1795                 $$ = $2;
1796         }
1797         | script_dir direction_less_event {
1798                 if ($1)
1799                         $2->set_property ("direction", scm_int2num ($1));
1800                 $$ = $2;
1801         }
1802         | string_number_event
1803         ;
1804
1805 string_number_event:
1806         E_UNSIGNED {
1807                 Music *s = MY_MAKE_MUSIC ("StringNumberEvent");
1808                 s->set_property ("string-number", scm_int2num ($1));
1809                 s->set_spot (THIS->here_input ());
1810                 $$ = s;
1811         }
1812         ;
1813
1814 direction_less_char:
1815         '['  {
1816                 $$ = ly_symbol2scm ("bracketOpenSymbol");
1817         }
1818         | ']'  {
1819                 $$ = ly_symbol2scm ("bracketCloseSymbol");
1820         }
1821         | '~'  {
1822                 $$ = ly_symbol2scm ("tildeSymbol");
1823         }
1824         | '('  {
1825                 $$ = ly_symbol2scm ("parenthesisOpenSymbol");
1826         }
1827         | ')'  {
1828                 $$ = ly_symbol2scm ("parenthesisCloseSymbol");
1829         }
1830         | E_EXCLAMATION  {
1831                 $$ = ly_symbol2scm ("escapedExclamationSymbol");
1832         }
1833         | E_OPEN  {
1834                 $$ = ly_symbol2scm ("escapedParenthesisOpenSymbol");
1835         }
1836         | E_CLOSE  {
1837                 $$ = ly_symbol2scm ("escapedParenthesisCloseSymbol");
1838         }
1839         | E_BIGGER  {
1840                 $$ = ly_symbol2scm ("escapedBiggerSymbol");
1841         }
1842         | E_SMALLER  {
1843                 $$ = ly_symbol2scm ("escapedSmallerSymbol");
1844         }
1845         ;
1846
1847 direction_less_event:
1848         direction_less_char {
1849                 SCM predefd = THIS->lexer_->lookup_identifier_symbol ($1);
1850                 Music * m = 0;
1851                 if (unsmob_music (predefd))
1852                 {
1853                         m = unsmob_music (predefd)->clone ();
1854                 }
1855                 else
1856                 {
1857                         m = MY_MAKE_MUSIC ("Music");
1858                 }
1859                 m->set_spot (THIS->here_input ());
1860                 $$ = m;
1861         }
1862         | EVENT_IDENTIFIER      {
1863                 $$ = unsmob_music ($1);
1864         }
1865         | tremolo_type  {
1866                Music *a = MY_MAKE_MUSIC ("TremoloEvent");
1867                a->set_spot (THIS->here_input ());
1868                a->set_property ("tremolo-type", scm_int2num ($1));
1869                $$ = a;
1870         }
1871         ;
1872
1873 direction_reqd_event:
1874         gen_text_def {
1875                 $$ = $1;
1876         }
1877         | script_abbreviation {
1878                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1879                 Music *a = MY_MAKE_MUSIC ("ArticulationEvent");
1880                 if (scm_is_string (s))
1881                         a->set_property ("articulation-type", s);
1882                 else THIS->parser_error (_ ("Expecting string as script definition"));
1883                 $$ = a;
1884         }
1885         ;
1886
1887 octave_check:
1888         /**/ { $$ = SCM_EOL; }
1889         | '='  { $$ = scm_int2num (0); }
1890         | '=' sub_quotes { $$ = scm_int2num ($2); }
1891         | '=' sup_quotes { $$ = scm_int2num ($2); }
1892         ;
1893
1894 sup_quotes:
1895         '\'' {
1896                 $$ = 1;
1897         }
1898         | sup_quotes '\'' {
1899                 $$ ++;
1900         }
1901         ;
1902
1903 sub_quotes:
1904         ',' {
1905                 $$ = 1;
1906         }
1907         | sub_quotes ',' {
1908                 $$++;
1909         }
1910         ;
1911
1912 steno_pitch:
1913         NOTENAME_PITCH  {
1914                 $$ = $1;
1915         }
1916         | NOTENAME_PITCH sup_quotes     {
1917                 Pitch p = *unsmob_pitch ($1);
1918                 p = p.transposed (Pitch ($2,0,0));
1919                 $$ = p.smobbed_copy ();
1920         }
1921         | NOTENAME_PITCH sub_quotes      {
1922                 Pitch p =* unsmob_pitch ($1);
1923                 p = p.transposed (Pitch (-$2,0,0));
1924                 $$ = p.smobbed_copy ();
1925         }
1926         ;
1927
1928 /*
1929 ugh. duplication
1930 */
1931
1932 steno_tonic_pitch:
1933         TONICNAME_PITCH {
1934                 $$ = $1;
1935         }
1936         | TONICNAME_PITCH sup_quotes    {
1937                 Pitch p = *unsmob_pitch ($1);
1938                 p = p.transposed (Pitch ($2,0,0));
1939                 $$ = p.smobbed_copy ();
1940         }
1941         | TONICNAME_PITCH sub_quotes     {
1942                 Pitch p =* unsmob_pitch ($1);
1943
1944                 p = p.transposed (Pitch (-$2,0,0));
1945                 $$ = p.smobbed_copy ();
1946         }
1947         ;
1948
1949 pitch:
1950         steno_pitch {
1951                 $$ = $1;
1952         }
1953         ;
1954
1955 pitch_also_in_chords:
1956         pitch
1957         | steno_tonic_pitch
1958         ;
1959
1960 gen_text_def:
1961         full_markup {
1962                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1963                 t->set_property ("text", $1);
1964                 t->set_spot (THIS->here_input ());
1965                 $$ = t;
1966         }
1967         | string {
1968                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1969                 t->set_property ("text",
1970                         make_simple_markup (THIS->lexer_->encoding (), $1));
1971                 t->set_spot (THIS->here_input ());
1972                 $$ = t;
1973
1974         }
1975         | DIGIT {
1976                 Music *t = MY_MAKE_MUSIC ("FingerEvent");
1977                 t->set_property ("digit", scm_int2num ($1));
1978                 t->set_spot (THIS->here_input ());
1979                 $$ = t;
1980         }
1981         ;
1982
1983 script_abbreviation:
1984         '^'             {
1985                 $$ = scm_makfrom0str ("Hat");
1986         }
1987         | '+'           {
1988                 $$ = scm_makfrom0str ("Plus");
1989         }
1990         | '-'           {
1991                 $$ = scm_makfrom0str ("Dash");
1992         }
1993         | '|'           {
1994                 $$ = scm_makfrom0str ("Bar");
1995         }
1996         | '>'           {
1997                 $$ = scm_makfrom0str ("Larger");
1998         }
1999         | '.'           {
2000                 $$ = scm_makfrom0str ("Dot");
2001         }
2002         | '_' {
2003                 $$ = scm_makfrom0str ("Underscore");
2004         }
2005         ;
2006
2007 script_dir:
2008         '_'     { $$ = DOWN; }
2009         | '^'   { $$ = UP; }
2010         | '-'   { $$ = CENTER; }
2011         ;
2012
2013
2014 absolute_pitch:
2015         steno_pitch     {
2016                 $$ = $1;
2017         }
2018         ;
2019
2020 duration_length:
2021         multiplied_duration {
2022                 $$ = $1;
2023         }
2024         ;
2025
2026 optional_notemode_duration:
2027         {
2028                 Duration dd = THIS->default_duration_;
2029                 $$ = dd.smobbed_copy ();
2030
2031                 THIS->beam_check ($$);
2032         }
2033         | multiplied_duration   {
2034                 $$ = $1;
2035                 THIS->default_duration_ = *unsmob_duration ($$);
2036
2037                 THIS->beam_check ($$);
2038         }
2039         ;
2040
2041 steno_duration:
2042         bare_unsigned dots              {
2043                 int len = 0;
2044                 if (!is_duration ($1))
2045                         THIS->parser_error (_f ("not a duration: %d", $1));
2046                 else
2047                         len = intlog2 ($1);
2048
2049                 $$ = Duration (len, $2).smobbed_copy ();
2050         }
2051         | DURATION_IDENTIFIER dots      {
2052                 Duration *d = unsmob_duration ($1);
2053                 Duration k (d->duration_log (), d->dot_count () + $2);
2054                 *d = k;
2055                 $$ = $1;
2056         }
2057         ;
2058
2059 multiplied_duration:
2060         steno_duration {
2061                 $$ = $1;
2062         }
2063         | multiplied_duration '*' bare_unsigned {
2064                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
2065         }
2066         | multiplied_duration '*' FRACTION {
2067                 Rational  m (scm_to_int (scm_car ($3)), scm_to_int (scm_cdr ($3)));
2068
2069                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
2070         }
2071         ;
2072
2073 fraction:
2074         FRACTION { $$ = $1; }
2075         | UNSIGNED '/' UNSIGNED {
2076                 $$ = scm_cons (scm_int2num ($1), scm_int2num ($3));
2077         }
2078         ;
2079
2080 dots:
2081         /* empty */     {
2082                 $$ = 0;
2083         }
2084         | dots '.' {
2085                 $$ ++;
2086         }
2087         ;
2088
2089 tremolo_type:
2090         ':'     {
2091                 $$ = 0;
2092         }
2093         | ':' bare_unsigned {
2094                 if (!is_duration ($2))
2095                         THIS->parser_error (_f ("not a duration: %d", $2));
2096                 $$ = $2;
2097         }
2098         ;
2099
2100 bass_number:
2101         DIGIT   {
2102                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2103                 $$ = scm_list_2 (ly_scheme_function ("number-markup"),
2104                                 $$);
2105         }
2106         | UNSIGNED {
2107                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2108                 $$ = scm_list_2 (ly_scheme_function ("number-markup"),
2109                                 $$);
2110         }
2111         | STRING { $$ = $1; }
2112         ;
2113
2114 bass_mod:
2115         '-'     { $$ = -2; }
2116         | '+'   { $$ = 2; }
2117         | '!'   { $$ = 0; }
2118         ;
2119
2120 bass_figure:
2121         FIGURE_SPACE {
2122                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2123                 $$ = bfr->self_scm ();
2124                 scm_gc_unprotect_object ($$);
2125         }
2126         | bass_number  {
2127                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2128                 $$ = bfr->self_scm ();
2129
2130                 bfr->set_property ("figure", $1);
2131
2132                 scm_gc_unprotect_object ($$);
2133         }
2134         | bass_figure bass_mod {
2135                 Music *m = unsmob_music ($1);
2136                 if ($2) {
2137                         SCM salter = m->get_property ("alteration");
2138                         int alter = scm_is_number (salter) ? scm_to_int (salter) : 0;
2139                         m->set_property ("alteration",
2140                                 scm_int2num (alter + $2));
2141                 } else {
2142                         m->set_property ("alteration", scm_int2num (0));
2143                 }
2144         }
2145         ;
2146
2147 br_bass_figure:
2148         '[' bass_figure {
2149                 $$ = $2;
2150                 unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
2151         }
2152         | bass_figure   {
2153                 $$ = $1;
2154         }
2155         | br_bass_figure ']' {
2156                 $$ = $1;
2157                 unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
2158         }
2159         ;
2160
2161 figure_list:
2162         /**/            {
2163                 $$ = SCM_EOL;
2164         }
2165         | figure_list br_bass_figure {
2166                 $$ = scm_cons ($2, $1);
2167         }
2168         ;
2169
2170 figure_spec:
2171         FIGURE_OPEN figure_list FIGURE_CLOSE {
2172                 Music *m = MY_MAKE_MUSIC ("EventChord");
2173                 $2 = scm_reverse_x ($2, SCM_EOL);
2174                 m->set_property ("elements", $2);
2175                 $$ = m->self_scm ();
2176         }
2177         ;
2178
2179
2180 optional_rest:
2181         /**/   { $$ = 0; }
2182         | REST { $$ = 1; }
2183         ;
2184
2185 simple_element:
2186         pitch exclamations questions octave_check optional_notemode_duration optional_rest {
2187
2188                 Input i = THIS->pop_spot ();
2189                 if (!THIS->lexer_->is_note_state ())
2190                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
2191
2192                 Music *n = 0;
2193                 if ($6)
2194                         n = MY_MAKE_MUSIC ("RestEvent");
2195                 else
2196                         n = MY_MAKE_MUSIC ("NoteEvent");
2197
2198                 n->set_property ("pitch", $1);
2199                 n->set_property ("duration", $5);
2200
2201                 if (scm_is_number ($4))
2202                 {
2203                         int q = scm_to_int ($4);
2204                         n->set_property ("absolute-octave", scm_int2num (q-1));
2205                 }
2206
2207                 if ($3 % 2)
2208                         n->set_property ("cautionary", SCM_BOOL_T);
2209                 if ($2 % 2 || $3 % 2)
2210                         n->set_property ("force-accidental", SCM_BOOL_T);
2211
2212                 Music *v = MY_MAKE_MUSIC ("EventChord");
2213                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2214                 scm_gc_unprotect_object (n->self_scm ());
2215
2216                 v->set_spot (i);
2217                 n->set_spot (i);
2218                 $$ = v;
2219         }
2220         | DRUM_PITCH optional_notemode_duration {
2221                 Input i = THIS->pop_spot ();
2222
2223                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
2224                 n->set_property ("duration", $2);
2225                 n->set_property ("drum-type", $1);
2226
2227                 Music *v = MY_MAKE_MUSIC ("EventChord");
2228                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2229                 scm_gc_unprotect_object (n->self_scm ());
2230                 v->set_spot (i);
2231                 n->set_spot (i);
2232                 $$ = v;
2233
2234         }
2235         | figure_spec optional_notemode_duration {
2236                 Music *m = unsmob_music ($1);
2237                 Input i = THIS->pop_spot ();
2238                 m->set_spot (i);
2239                 for (SCM s = m->get_property ("elements"); scm_is_pair (s); s = scm_cdr (s))
2240                 {
2241                         unsmob_music (scm_car (s))->set_property ("duration", $2);
2242                 }
2243                 $$ = m;
2244         }
2245         | RESTNAME optional_notemode_duration           {
2246
2247                 Input i = THIS->pop_spot ();
2248                 Music *ev = 0;
2249                 if (ly_scm2string ($1) == "s") {
2250                         /* Space */
2251                         ev = MY_MAKE_MUSIC ("SkipEvent");
2252                   }
2253                 else {
2254                         ev = MY_MAKE_MUSIC ("RestEvent");
2255
2256                     }
2257                 ev->set_property ("duration", $2);
2258                 ev->set_spot (i);
2259                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2260                 velt->set_property ("elements", scm_list_1 (ev->self_scm ()));
2261                 velt->set_spot (i);
2262
2263                 scm_gc_unprotect_object (ev->self_scm ());
2264
2265                 $$ = velt;
2266         }
2267         | MULTI_MEASURE_REST optional_notemode_duration         {
2268                 THIS->pop_spot ();
2269
2270                 SCM proc = ly_scheme_function ("make-multi-measure-rest");
2271                 SCM mus = scm_call_2 (proc, $2,
2272                         make_input (THIS->here_input ()));
2273                 scm_gc_protect_object (mus);
2274                 $$ = unsmob_music (mus);
2275         }
2276
2277         | lyric_element optional_notemode_duration      {
2278                 Input i = THIS->pop_spot ();
2279                 if (!THIS->lexer_->is_lyric_state ())
2280                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
2281
2282                 Music *lreq = MY_MAKE_MUSIC ("LyricEvent");
2283                 lreq->set_property ("text", $1);
2284                 lreq->set_property ("duration",$2);
2285                 lreq->set_spot (i);
2286                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2287                 velt->set_property ("elements", scm_list_1 (lreq->self_scm ()));
2288
2289                 $$= velt;
2290         }
2291         | new_chord {
2292                 THIS->pop_spot ();
2293
2294                 if (!THIS->lexer_->is_chord_state ())
2295                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
2296                 $$ = unsmob_music ($1);
2297         }
2298         ;
2299
2300 lyric_element:
2301         /* FIXME: lyric flavoured markup would be better */
2302         full_markup {
2303                 $$ = $1;
2304         }
2305         | LYRICS_STRING {
2306                 $$ = make_simple_markup (THIS->lexer_->encoding (), $1);
2307         }
2308         ;
2309
2310 new_chord:
2311         steno_tonic_pitch optional_notemode_duration   {
2312                 $$ = make_chord ($1, $2, SCM_EOL);
2313         }
2314         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2315                 SCM its = scm_reverse_x ($4, SCM_EOL);
2316                 $$ = make_chord ($1, $2, scm_cons ($3, its));
2317         }
2318         ;
2319
2320 chord_items:
2321         /**/ {
2322                 $$ = SCM_EOL;
2323         }
2324         | chord_items chord_item {
2325                 $$ = scm_cons ($2, $$);
2326         }
2327         ;
2328
2329 chord_separator:
2330         CHORD_COLON {
2331                 $$ = ly_symbol2scm ("chord-colon");
2332         }
2333         | CHORD_CARET {
2334                 $$ = ly_symbol2scm ("chord-caret");
2335         }
2336         | CHORD_SLASH steno_tonic_pitch {
2337                 $$ = scm_list_2 (ly_symbol2scm ("chord-slash"), $2);
2338         }
2339         | CHORD_BASS steno_tonic_pitch {
2340                 $$ = scm_list_2 (ly_symbol2scm ("chord-bass"), $2);
2341         }
2342         ;
2343
2344 chord_item:
2345         chord_separator {
2346                 $$ = $1;
2347         }
2348         | step_numbers {
2349                 $$ = scm_reverse_x ($1, SCM_EOL);
2350         }
2351         | CHORD_MODIFIER  {
2352                 $$ = $1;
2353         }
2354         ;
2355
2356 step_numbers:
2357         step_number { $$ = scm_cons ($1, SCM_EOL); }
2358         | step_numbers '.' step_number {
2359                 $$ = scm_cons ($3, $$);
2360         }
2361         ;
2362
2363 step_number:
2364         bare_unsigned {
2365                 $$ = make_chord_step ($1, 0);
2366         }
2367         | bare_unsigned '+' {
2368                 $$ = make_chord_step ($1, SHARP);
2369         }
2370         | bare_unsigned CHORD_MINUS {
2371                 $$ = make_chord_step ($1, FLAT);
2372         }
2373         ;
2374
2375 /*
2376         UTILITIES
2377
2378 TODO: should deprecate in favor of Scheme?
2379
2380  */
2381 number_expression:
2382         number_expression '+' number_term {
2383                 $$ = scm_sum ($1, $3);
2384         }
2385         | number_expression '-' number_term {
2386                 $$ = scm_difference ($1, $3);
2387         }
2388         | number_term
2389         ;
2390
2391 number_term:
2392         number_factor {
2393                 $$ = $1;
2394         }
2395         | number_factor '*' number_factor {
2396                 $$ = scm_product ($1, $3);
2397         }
2398         | number_factor '/' number_factor {
2399                 $$ = scm_divide ($1, $3);
2400         }
2401         ;
2402
2403 number_factor:
2404         '-'  number_factor { /* %prec UNARY_MINUS */
2405                 $$ = scm_difference ($2, SCM_UNDEFINED);
2406         }
2407         | bare_number
2408         ;
2409
2410
2411 bare_number:
2412         UNSIGNED        {
2413                 $$ = scm_int2num ($1);
2414         }
2415         | REAL          {
2416                 $$ = $1;
2417         }
2418         | NUMBER_IDENTIFIER             {
2419                 $$ = $1;
2420         }
2421         | REAL NUMBER_IDENTIFIER        {
2422                 $$ = scm_make_real (scm_to_double ($1) *scm_to_double ($2));
2423         }
2424         | UNSIGNED NUMBER_IDENTIFIER    {
2425                 $$ = scm_make_real ($1 *scm_to_double ($2));
2426         }
2427         ;
2428
2429
2430 bare_unsigned:
2431         UNSIGNED {
2432                         $$ = $1;
2433         }
2434         | DIGIT {
2435                 $$ = $1;
2436         }
2437         ;
2438
2439 bare_int:
2440         bare_number {
2441                 if (scm_integer_p ($1) == SCM_BOOL_T)
2442                 {
2443                         int k = scm_to_int ($1);
2444                         $$ = k;
2445                 } else
2446                 {
2447                         THIS->parser_error (_ ("need integer number arg"));
2448                         $$ = 0;
2449                 }
2450         }
2451         | '-' bare_int {
2452                 $$ = -$2;
2453         }
2454         ;
2455
2456 exclamations:
2457                 { $$ = 0; }
2458         | exclamations '!'      { $$ ++; }
2459         ;
2460
2461 questions:
2462                 { $$ = 0; }
2463         | questions '?' { $$ ++; }
2464         ;
2465
2466 /*
2467 This should be done more dynamically if possible.
2468 */
2469
2470 full_markup:
2471         MARKUP_IDENTIFIER {
2472                 $$ = $1;
2473         }
2474         | MARKUP
2475                 { THIS->lexer_->push_markup_state (); }
2476         markup_top {
2477                 $$ = $3;
2478                 THIS->lexer_->pop_state ();
2479         }
2480         ;
2481
2482 markup_top:
2483         markup_composed_list {
2484                 $$ = scm_list_2 (ly_scheme_function ("line-markup"),  $1);
2485         }
2486         | markup_head_1_list simple_markup      {
2487                 $$ = scm_car (scm_call_2 (ly_scheme_function ("map-markup-command-list"), $1, scm_list_1 ($2)));
2488         }
2489         | simple_markup {
2490                 $$ = $1;
2491         }
2492         | markup_braced_list    {
2493                 $$ = scm_list_2 (ly_scheme_function ("line-markup"), $1);
2494         }
2495         ;
2496
2497 markup_composed_list:
2498         markup_head_1_list markup_braced_list {
2499                 $$ = scm_call_2 (ly_scheme_function ("map-markup-command-list"), $1, $2);
2500
2501         }
2502         ;
2503
2504 markup_braced_list:
2505         '{' markup_braced_list_body '}' {
2506                 $$ = scm_reverse_x ($2, SCM_EOL);
2507         }
2508         ;
2509
2510 markup_braced_list_body:
2511         /* empty */     {  $$ = scm_list (SCM_EOL); }
2512         | markup_braced_list_body markup {
2513                 $$ = scm_cons ($2, $1);
2514         }
2515         | markup_braced_list_body markup_composed_list {
2516                 $$ = scm_append_x (scm_list_2 (scm_reverse_x ($2, SCM_EOL), $1));
2517         }
2518         ;
2519
2520 markup_head_1_item:
2521         MARKUP_HEAD_MARKUP0     {
2522                 $$ = scm_list_1 ($1);
2523         }
2524         | MARKUP_HEAD_SCM0_MARKUP1 embedded_scm {
2525                 $$ = scm_list_2 ($1, $2);
2526         }
2527         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm       {
2528                 $$ = scm_list_3 ($1, $2, $3);
2529         }
2530         ;
2531
2532 markup_head_1_list:
2533         markup_head_1_item      {
2534                 $$ = scm_list_1 ($1);
2535         }
2536         | markup_head_1_list markup_head_1_item {
2537                 $$ = scm_cons ($2, $1);
2538         }
2539         ;
2540
2541 simple_markup:
2542         STRING {
2543                 $$ = make_simple_markup (THIS->lexer_->encoding (), $1);
2544         }
2545         | MARKUP_IDENTIFIER {
2546                 $$ = $1;
2547         }
2548         | STRING_IDENTIFIER {
2549                 $$ = $1;
2550         }
2551         | SCORE {
2552                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
2553                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
2554         } '{' score_body '}' {
2555                 Score * sc = $4;
2556                 $$ = scm_list_2 (ly_scheme_function ("score-markup"), sc->self_scm ());
2557                 scm_gc_unprotect_object (sc->self_scm ());
2558                 THIS->lexer_->pop_state ();
2559         }
2560         | MARKUP_HEAD_SCM0 embedded_scm {
2561                 $$ = scm_list_2 ($1, $2);
2562         }
2563         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2564                 $$ = scm_list_4 ($1, $2, $3, $4);
2565         }
2566         | MARKUP_HEAD_SCM0_SCM1 embedded_scm embedded_scm {
2567                 $$ = scm_list_3 ($1, $2, $3);
2568         }
2569         | MARKUP_HEAD_EMPTY {
2570                 $$ = scm_list_1 ($1);
2571         }
2572         | MARKUP_HEAD_LIST0 markup_braced_list {
2573                 $$ = scm_list_2 ($1,$2);
2574         }
2575         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2576                 $$ = scm_list_3 ($1, $2, $3);
2577         }
2578         ;
2579
2580 markup:
2581         markup_head_1_list simple_markup        {
2582                 $$ = scm_car (scm_call_2 (ly_scheme_function ("map-markup-command-list"), $1, scm_list_1 ($2)));
2583         }
2584         | simple_markup {
2585                 $$ = $1;
2586         }
2587         | markup_braced_list {
2588                 $$ = scm_list_2 (ly_scheme_function ("line-markup"), $1);
2589         }
2590         ;
2591
2592 %%
2593
2594 void
2595 Lily_parser::set_yydebug (bool )
2596 {
2597 #if 0
2598         yydebug = 1;
2599 #endif
2600 }
2601
2602 void
2603 Lily_parser::do_yyparse ()
2604 {
2605         yyparse ((void*)this);
2606 }
2607
2608
2609 /*
2610 Should make this optional?    It will also complain when you do
2611
2612         [s4]
2613
2614 which is entirely legitimate.
2615
2616 Or we can scrap it. Barchecks should detect wrong durations, and
2617 skipTypesetting speeds it up a lot.
2618 */
2619
2620 void
2621 Lily_parser::beam_check (SCM dur)
2622 {
2623   Duration *d = unsmob_duration (dur);
2624   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2625     {
2626       Music *m = unsmob_music (last_beam_start_);
2627       m->origin ()->warning (_ ("Suspect duration found following this beam"));
2628     }
2629   last_beam_start_ = SCM_EOL;
2630 }
2631
2632
2633
2634
2635 /*
2636
2637 It is a little strange to have this function in this file, but
2638 otherwise, we have to import music classes into the lexer.
2639
2640 */
2641 int
2642 Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
2643 {
2644         if (scm_is_string (sid)) {
2645                 *destination = sid;
2646                 return STRING_IDENTIFIER;
2647         } else if (scm_is_number (sid)) {
2648                 *destination = sid;
2649                 return NUMBER_IDENTIFIER;
2650         } else if (unsmob_context_def (sid)) {
2651                 *destination = unsmob_context_def (sid)->clone_scm ();
2652                 return CONTEXT_DEF_IDENTIFIER;
2653         } else if (unsmob_score (sid)) {
2654                 Score *score = new Score (*unsmob_score (sid));
2655                 *destination = score->self_scm ();
2656                 return SCORE_IDENTIFIER;
2657         } else if (Music *mus = unsmob_music (sid)) {
2658                 mus = mus->clone ();
2659                 *destination = mus->self_scm ();
2660                 unsmob_music (*destination)->
2661                         set_property ("origin", make_input (last_input_));
2662                 return dynamic_cast<Event*> (mus)
2663                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2664         } else if (unsmob_duration (sid)) {
2665                 *destination = unsmob_duration (sid)->smobbed_copy ();
2666                 return DURATION_IDENTIFIER;
2667         } else if (unsmob_output_def (sid)) {
2668                 Output_def *p = unsmob_output_def (sid);
2669                 p = p->clone ();
2670
2671                 *destination = p->self_scm ();
2672                 return OUTPUT_DEF_IDENTIFIER;
2673         } else if (Text_interface::markup_p (sid)) {
2674                 *destination = sid;
2675                 return MARKUP_IDENTIFIER;
2676         }
2677
2678         return -1;
2679 }
2680
2681 Music *
2682 property_op_to_music (SCM op)
2683 {
2684         Music *m = 0;
2685         SCM tag = scm_car (op);
2686         SCM symbol = scm_cadr (op);
2687         SCM args = scm_cddr (op);
2688         SCM grob_val = SCM_UNDEFINED;
2689         SCM grob_sym = SCM_UNDEFINED;
2690         SCM val = SCM_UNDEFINED;
2691
2692         if (tag == ly_symbol2scm ("assign"))
2693                 {
2694                 m = MY_MAKE_MUSIC ("PropertySet");
2695                 val = scm_car (args);
2696                 }
2697         else if (tag == ly_symbol2scm ("unset"))
2698                 m = MY_MAKE_MUSIC ("PropertyUnset");
2699         else if (tag == ly_symbol2scm ("poppush")
2700                  || tag == ly_symbol2scm ("push"))
2701                 {
2702                 m = MY_MAKE_MUSIC ("OverrideProperty");
2703                 grob_sym = scm_car (args);
2704                 grob_val = scm_cadr (args);
2705                 }
2706         else if (tag == ly_symbol2scm ("pop")) {
2707                 m = MY_MAKE_MUSIC ("RevertProperty");
2708                 grob_sym = scm_car (args);
2709                 }
2710
2711         m->set_property ("symbol", symbol);
2712
2713         if (val != SCM_UNDEFINED)
2714                 m->set_property ("value", val);
2715         if (grob_val != SCM_UNDEFINED)
2716                 m->set_property ("grob-value", grob_val);
2717
2718         if (grob_sym != SCM_UNDEFINED)
2719                 {
2720                 bool itc = internal_type_checking_global_b;
2721                 /* UGH.
2722                 */
2723                 bool autobeam = ly_c_equal_p (symbol, ly_symbol2scm ("autoBeamSettings"));
2724                 if (autobeam)
2725                         internal_type_checking_global_b = false;
2726                 m->set_property ("grob-property", grob_sym);
2727                 if (autobeam)
2728                         internal_type_checking_global_b = itc;
2729                 }
2730
2731         if (tag == ly_symbol2scm ("poppush"))
2732                 m->set_property ("pop-first", SCM_BOOL_T);
2733
2734
2735         return m;
2736 }
2737
2738 Music*
2739 context_spec_music (SCM type, SCM id, Music *m, SCM ops)
2740 {
2741         Music *csm = MY_MAKE_MUSIC ("ContextSpeccedMusic");
2742
2743         csm->set_property ("element", m->self_scm ());
2744         scm_gc_unprotect_object (m->self_scm ());
2745
2746         csm->set_property ("context-type",
2747                 scm_is_symbol (type) ? type : scm_string_to_symbol (type));
2748         csm->set_property ("property-operations", ops);
2749
2750         if (scm_is_string (id))
2751                 csm->set_property ("context-id", id);
2752         return csm;
2753 }
2754
2755 SCM
2756 get_next_unique_context_id ()
2757 {
2758         return scm_makfrom0str ("$uniqueContextId");
2759 }
2760
2761
2762 SCM
2763 get_next_unique_lyrics_context_id ()
2764 {
2765         static int new_context_count;
2766         char s[128];
2767         snprintf (s, 1024, "uniqueContext%d", new_context_count++);
2768         return scm_makfrom0str (s);
2769 }