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--2005 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 #include "context-def.hh"
  30 #include "dimensions.hh"
  31 #include "event.hh"
  32 #include "file-path.hh"
  33 #include "input-smob.hh"
  34 #include "input.hh"
  35 #include "lily-guile.hh"
  36 #include "lilypond-input-version.hh"
  37 #include "main.hh"
  38 #include "misc.hh"
  39 #include "lily-lexer.hh"
  40 #include "lily-parser.hh"
  41 #include "paper-book.hh"
  42 #include "output-def.hh"
  43 #include "scm-hash.hh"
  44 #include "scm-option.hh"
  45 #include "score.hh"
  46 #include "text-item.hh"
  47 #include "warn.hh"
  48
  49 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  50
  51 Music *property_op_to_music (SCM op);
  52 Music *context_spec_music (SCM type, SCM id, Music *m, SCM ops);
  53 SCM get_next_unique_context_id ();
  54 SCM get_next_unique_lyrics_context_id ();
  55
  56 #define YYERROR_VERBOSE 1
  57
  58 #define YYPARSE_PARAM my_lily_parser
  59 #define YYLEX_PARAM my_lily_parser
  60 #define THIS\
  61         ((Lily_parser *) my_lily_parser)
  62
  63 #define yyerror THIS->parser_error
  64
  65 /* We use custom location type: Input objects */
  66 #define YYLTYPE Input
  67 #define YYLLOC_DEFAULT(Current,Rhs,N) \
  68         ((Current).set_location ((Rhs)[1], (Rhs)[N]))
  69
  70
  71 /* Add symbols to the TAGS field of a music object.  */
  72
  73 void
  74 tag_music (Music *m, SCM tag, Input ip)
  75 {
  76         SCM tags = m->get_property ("tags");
  77         if (scm_is_symbol (tag))
  78                 tags = scm_cons (tag, tags);
  79         else if (ly_c_list_p (tag))
  80                 tags = ly_append2 (tag, tags);
  81         else
  82                 ip.warning (_ ("Tag must be symbol or list of symbols."));
  83
  84         m->set_property ("tags", tags);
  85 }
  86
  87 bool
  88 is_regular_identifier (SCM id)
  89 {
  90   String str = ly_scm2string (id);
  91   char const *s = str.to_str0 ();
  92
  93   bool v = true;
  94 #if 0
  95   isalpha (*s);
  96   s++;
  97 #endif
  98   while (*s && v)
  99    {
 100         v = v && isalnum (*s);
 101         s++;
 102    }
 103   return v;
 104 }
 105
 106
 107 SCM
 108 get_first_context_id (SCM type, Music *m)
 109 {
 110         SCM id = m->get_property ("context-id");
 111         if (SCM_BOOL_T == scm_equal_p (m->get_property ("context-type"), type)
 112             && scm_is_string (m->get_property ("context-id"))
 113             && scm_c_string_length (id) > 0)
 114         {
 115                 return id;
 116         }
 117         return SCM_EOL;
 118 }
 119
 120 SCM
 121 make_simple_markup (SCM a)
 122 {
 123         SCM simple = ly_lily_module_constant ("simple-markup");
 124         return scm_list_2 (simple, a);
 125 }
 126
 127 bool
 128 is_duration (int t)
 129 {
 130   return t && t == 1 << intlog2 (t);
 131 }
 132
 133 void
 134 set_music_properties (Music *p, SCM a)
 135 {
 136   for (SCM k = a; scm_is_pair (k); k = scm_cdr (k))
 137         p->internal_set_property (scm_caar (k), scm_cdar (k));
 138 }
 139
 140 SCM
 141 make_chord_step (int step, int alter)
 142 {
 143         if (step == 7)
 144                 alter += FLAT;
 145
 146         while (step < 0)
 147                 step += 7;
 148         Pitch m ((step -1) / 7, (step - 1) % 7, alter);
 149         return m.smobbed_copy ();
 150 }
 151
 152
 153 SCM
 154 make_chord (SCM pitch, SCM dur, SCM modification_list)
 155 {
 156         SCM chord_ctor = ly_lily_module_constant ("construct-chord");
 157         SCM ch = scm_call_3 (chord_ctor, pitch, dur, modification_list);
 158         scm_gc_protect_object (ch);
 159         return ch;
 160 }
 161
 162 /* Todo: actually also use apply iso. call too ...  */
 163 bool
 164 ly_input_procedure_p (SCM x)
 165 {
 166         return ly_c_procedure_p (x)
 167                 || (scm_is_pair (x) && ly_c_procedure_p (scm_car (x)));
 168 }
 169
 170 Music*
 171 set_property_music (SCM sym, SCM value)
 172 {
 173         Music *p = MY_MAKE_MUSIC ("PropertySet");
 174         p->set_property ("symbol", sym);
 175         p->set_property ("value", value);
 176         return p;
 177 }
 178
 179 Music*
 180 make_music_relative (Pitch start, Music *music)
 181 {
 182         Music *relative = MY_MAKE_MUSIC ("RelativeOctaveMusic");
 183         relative->set_property ("element", music->self_scm ());
 184
 185         Pitch last = music->to_relative_octave (start);
 186         if (lily_1_8_relative)
 187                 music->set_property ("last-pitch", last.smobbed_copy ());
 188         return relative;
 189 }
 190
 191 Music*
 192 make_lyric_combine_music (SCM name, Music *music)
 193 {
 194         Music *combine = MY_MAKE_MUSIC ("NewLyricCombineMusic");
 195         combine->set_property ("element", music->self_scm ());
 196         combine->set_property ("associated-context", name);
 197         return combine;
 198 }
 199
 200 %}
 201
 202 /* We use SCMs to do strings, because it saves us the trouble of
 203 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 204 of the parse stack onto the heap. */
 205
 206 %left ADDLYRICS
 207
 208 %union {
 209         Book *book;
 210         Output_def *outputdef;
 211         SCM scm;
 212         String *string;
 213         Music *music;
 214         Score *score;
 215         int i;
 216 }
 217 %{
 218
 219 int
 220 yylex (YYSTYPE *s, YYLTYPE *l, void *v)
 221 {
 222         Lily_parser *pars = (Lily_parser*) v;
 223         Lily_lexer *lex = pars->lexer_;
 224
 225         lex->lexval = (void*) s;
 226         lex->lexloc = l;
 227         lex->prepare_for_next_token ();
 228         return lex->yylex ();
 229 }
 230
 231
 232 %}
 233
 234 %expect 1
 235
 236 /* One shift/reduce problem
 237
 238 1.  \repeat
 239         \repeat .. \alternative
 240
 241     \repeat { \repeat .. \alternative }
 242
 243 or
 244
 245     \repeat { \repeat } \alternative
 246 */
 247
 248
 249 %pure_parser
 250 %locations
 251
 252 %token ACCEPTS
 253 %token ADDQUOTE
 254 %token LYRICSTO
 255 %token ALIAS
 256 %token ALTERNATIVE
 257 %token BAR
 258 %token BOOK
 259 %token CHANGE
 260 %token CHORDMODIFIERS
 261 %token CHORDS
 262 %token CHORDMODE
 263 %token DOUBLE_ANGLE_OPEN
 264 %token DOUBLE_ANGLE_CLOSE
 265 %token CLEF
 266 %token COMMANDSPANREQUEST
 267 %token CONSISTS
 268 %token CONTEXT
 269 %token DEFAULT
 270 %token DENIES
 271 %token DESCRIPTION
 272 %token EXTENDER
 273 %token FIGURES
 274 %token FIGUREMODE
 275 %token FIGURE_OPEN FIGURE_CLOSE
 276 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 277 %token GROBDESCRIPTIONS
 278 %token HEADER
 279 %token HYPHEN
 280 %token INVALID
 281 %token KEY
 282 %token LAYOUT
 283 %token LYRICS
 284 %token LYRIC_MARKUP
 285 %token LYRICMODE
 286 %token MARK
 287 %token MIDI
 288 %token MULTI_MEASURE_REST
 289 %token NAME
 290 %token NEWCONTEXT
 291 %token NOTEMODE
 292 %token OBJECTID
 293 %token OCTAVE
 294 %token ONCE
 295 %token OVERRIDE SET REVERT
 296 %token PAPER
 297 %token PARTIAL
 298 %token QUOTE
 299 %token RELATIVE
 300 %token REMOVE
 301 %token REPEAT
 302 %token REST
 303 %token SCM_T
 304 %token SCORE
 305 %token SEQUENTIAL
 306 %token ADDLYRICS
 307 %token SIMULTANEOUS
 308 %token SKIP
 309 %token SPANREQUEST
 310 %token TAG
 311 %token TEMPO
 312 %token TIMES
 313 %token TIME_T
 314 %token TRANSPOSE
 315 %token TRANSPOSITION
 316 %token TYPE
 317 %token UNSET
 318 %token WITH
 319 %token MARKUP
 320
 321 /* escaped */
 322 /* FIXME: this sucks.  The user will get to see these names:
 323     syntax error, unexpected E_CHAR:
 324                 \
 325                  %%
 326   */
 327
 328 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 329 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 330 %token E_BACKSLASH
 331 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 332 %token FIGURE_SPACE
 333
 334 %token <i>      DIGIT
 335 %token <i>      UNSIGNED
 336 %token <i> E_UNSIGNED
 337 %token <id>     IDENTIFIER
 338 %token <scm>    CHORDMODIFIER_PITCH
 339 %token <scm>    DRUM_PITCH
 340 %token <scm>    DURATION_IDENTIFIER
 341 %token <scm>    EVENT_IDENTIFIER
 342 %token <scm>    MUSIC_IDENTIFIER CONTEXT_DEF_IDENTIFIER
 343 %token <scm>    NOTENAME_PITCH
 344 %token <scm>    NUMBER_IDENTIFIER
 345 %token <scm>    OUTPUT_DEF_IDENTIFIER
 346 %token <scm>    RESTNAME
 347 %token <scm> LYRICS_STRING
 348 %token <scm>    SCM_T
 349 %token <scm>    SCORE_IDENTIFIER
 350 %token <scm>    STRING
 351 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 352 %token <scm>    TONICNAME_PITCH
 353 %token <scm>    CHORD_MODIFIER
 354 %token <scm>    FRACTION
 355 %token <scm>   REAL
 356 %token <scm> MARKUP_HEAD_EMPTY
 357 %token <scm> MARKUP_HEAD_MARKUP0
 358 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 359 %token <scm> MARKUP_HEAD_SCM0
 360 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 361 %token <scm> MARKUP_HEAD_SCM0_SCM1
 362 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 363 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 364 %token <scm> LYRIC_MARKUP_IDENTIFIER MARKUP_IDENTIFIER MARKUP_HEAD_LIST0
 365 %token <scm> MUSIC_FUNCTION
 366 %token <scm> MUSIC_FUNCTION_MUSIC
 367 %token <scm> MUSIC_FUNCTION_MUSIC_MUSIC
 368 %token <scm> MUSIC_FUNCTION_SCM
 369 %token <scm> MUSIC_FUNCTION_SCM_SCM
 370 %token <scm> MUSIC_FUNCTION_SCM_MUSIC
 371 %token <scm> MUSIC_FUNCTION_SCM_MUSIC_MUSIC
 372 %token <scm> MUSIC_FUNCTION_SCM_SCM_MUSIC
 373 %token <scm> MUSIC_FUNCTION_MARKUP
 374 %token <scm> MUSIC_FUNCTION_MARKUP_MARKUP
 375 %token <scm> MUSIC_FUNCTION_MARKUP_MUSIC
 376 %token <scm> MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC
 377 %token <scm> MUSIC_FUNCTION_MARKUP_MARKUP_MUSIC
 378
 379 %token DRUMS
 380 %token DRUMMODE
 381
 382
 383 %type <book>    book_block book_body
 384 %type <i>       bare_int  bare_unsigned
 385 %type <i>       exclamations questions dots optional_rest
 386 %type <i>       script_dir
 387 %type <i>       sub_quotes sup_quotes
 388 %type <i>       tremolo_type
 389 %type <i>       bass_mod
 390
 391 %type <music>   Composite_music Simple_music Prefix_composite_music Generic_prefix_music
 392 %type <music>   Grouped_music_list
 393 %type <music>   Music Sequential_music Simultaneous_music
 394 %type <music>   Repeated_music
 395 %type <music>   command_req
 396 %type <music>   gen_text_def direction_less_event direction_reqd_event
 397 %type <music>   music_property_def context_change
 398 %type <music>   note_chord_element chord_body chord_body_element
 399 %type <music>   post_event tagged_post_event
 400 %type <music>   relative_music re_rhythmed_music
 401 %type <music>   simple_element event_chord command_element
 402 %type <music>   string_number_event
 403 %type <music>   toplevel_music
 404 %type <music>   tempo_event
 405
 406 %type <outputdef>       output_def_body output_def_head
 407 %type <outputdef> output_def paper_block
 408
 409 %type <scm>     assignment_id
 410 %type <scm>     Music_list
 411 %type <scm>     chord_body_elements
 412 %type <scm>     chord_item chord_items chord_separator new_chord
 413 %type <scm>     context_def_spec_block context_def_spec_body
 414 %type <scm>     context_mod context_def_mod optional_context_mod
 415 %type <scm>     context_prop_spec
 416 %type <scm>     direction_less_char
 417 %type <scm>     duration_length fraction
 418 %type <scm>     embedded_scm scalar
 419 %type <scm>     identifier_init
 420 %type <scm>     lilypond_header lilypond_header_body
 421 %type <scm>     new_lyrics
 422 %type <scm>     post_events
 423 %type <scm>     property_operation
 424 %type <scm>     script_abbreviation
 425 %type <scm>     simple_string
 426 %type <scm>     steno_pitch pitch absolute_pitch pitch_also_in_chords
 427 %type <scm>     steno_tonic_pitch
 428 %type <scm>     step_number step_numbers
 429 %type <scm>     string bare_number number_expression number_term number_factor
 430 %type <scm>     bass_number br_bass_figure bass_figure figure_list figure_spec
 431 %type <scm>     context_mod_list
 432 %type <scm>     octave_check
 433 %type <scm>     steno_duration optional_notemode_duration multiplied_duration
 434 %type <scm>     Generic_prefix_music_scm
 435 %type <scm>     lyric_element
 436 %type <scm>     Alternative_music
 437 %type <scm>     full_markup lyric_markup
 438 %type <scm>     markup_list markup_composed_list markup_braced_list markup_braced_list_body
 439 %type <scm>     markup_head_1_item markup_head_1_list markup simple_markup markup_top
 440 %type <scm>     mode_changing_head
 441 %type <scm>     mode_changing_head_with_context
 442 %type <scm>     object_id_setting
 443
 444 %type <score>   score_block score_body
 445
 446
 447 %left '-' '+'
 448
 449 /* We don't assign precedence to / and *, because we might need varied
 450 prec levels in different prods */
 451
 452 %left UNARY_MINUS
 453
 454 %%
 455
 456 lilypond:       /* empty */
 457         | lilypond toplevel_expression {
 458         }
 459         | lilypond assignment {
 460         }
 461         | lilypond error {
 462                 THIS->error_level_ = 1;
 463         }
 464         | lilypond INVALID      {
 465                 THIS->error_level_ = 1;
 466         }
 467         ;
 468
 469
 470 object_id_setting:
 471         OBJECTID STRING { $$ = $2; }
 472         ;
 473
 474 toplevel_expression:
 475         lilypond_header {
 476                 THIS->lexer_->set_identifier (ly_symbol2scm ("$globalheader"), $1);
 477         }
 478         | add_quote {
 479
 480         }
 481         | book_block {
 482                 Book *book = $1;
 483                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-book-handler");
 484                 scm_call_2 (proc, THIS->self_scm (), book->self_scm ());
 485                 scm_gc_unprotect_object (book->self_scm ());
 486         }
 487         | score_block {
 488                 Score *score = $1;
 489
 490                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-score-handler");
 491                 scm_call_2 (proc, THIS->self_scm (), score->self_scm ());
 492                 scm_gc_unprotect_object (score->self_scm ());
 493         }
 494         | toplevel_music {
 495                 Music *music = $1;
 496                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-music-handler");
 497                 scm_call_2 (proc, THIS->self_scm (), music->self_scm ());
 498                 scm_gc_unprotect_object (music->self_scm ());
 499         }
 500         | full_markup {
 501                 SCM proc = THIS->lexer_->lookup_identifier ("toplevel-text-handler");
 502                 scm_call_2 (proc, THIS->self_scm (), $1);
 503         }
 504         | output_def {
 505                 SCM id = SCM_EOL;
 506                 Output_def * od = $1;
 507
 508                 if ($1->c_variable ("is-paper") == SCM_BOOL_T)
 509                         id = ly_symbol2scm ("$defaultpaper");
 510                 else if ($1->c_variable ("is-midi") == SCM_BOOL_T)
 511                         id = ly_symbol2scm ("$defaultmidi");
 512                 else if ($1->c_variable ("is-layout") == SCM_BOOL_T)
 513                         id = ly_symbol2scm ("$defaultlayout");
 514
 515                 THIS->lexer_->set_identifier (id, od->self_scm ());
 516                 scm_gc_unprotect_object (od->self_scm ());
 517         }
 518         ;
 519
 520 toplevel_music:
 521         Composite_music {
 522         }
 523         ;
 524
 525 embedded_scm:
 526         SCM_T
 527         | SCM_IDENTIFIER
 528         ;
 529
 530
 531 lilypond_header_body:
 532         {
 533                 $$ = ly_make_anonymous_module (be_safe_global);
 534                 THIS->lexer_->add_scope ($$);
 535         }
 536         | lilypond_header_body assignment  {
 537
 538         }
 539         ;
 540
 541 lilypond_header:
 542         HEADER '{' lilypond_header_body '}'     {
 543                 $$ = THIS->lexer_->remove_scope ();
 544         }
 545         ;
 546
 547 /*
 548         DECLARATIONS
 549 */
 550 assignment_id:
 551         STRING          { $$ = $1; }
 552         | LYRICS_STRING { $$ = $1; }
 553         ;
 554
 555 assignment:
 556         assignment_id '=' identifier_init  {
 557                 if (! is_regular_identifier ($1))
 558                 {
 559                         @1.warning (_ ("Identifier should have alphabetic characters only"));
 560                 }
 561
 562                 THIS->lexer_->set_identifier ($1, $3);
 563
 564 /*
 565  TODO: devise standard for protection in parser.
 566
 567   The parser stack lives on the C-stack, which means that
 568 all objects can be unprotected as soon as they're here.
 569
 570 */
 571         }
 572         | embedded_scm { }
 573         ;
 574
 575
 576 identifier_init:
 577         score_block {
 578                 $$ = $1->self_scm ();
 579                 scm_gc_unprotect_object ($$);
 580         }
 581         | output_def {
 582                 $$ = $1->self_scm ();
 583                 scm_gc_unprotect_object ($$);
 584         }
 585         | context_def_spec_block {
 586                 $$ = $1;
 587         }
 588         | Music  {
 589                 $$ = $1->self_scm ();
 590                 scm_gc_unprotect_object ($$);
 591         }
 592         | post_event {
 593                 $$ = $1->self_scm ();
 594                 scm_gc_unprotect_object ($$);
 595         }
 596         | number_expression {
 597                 $$ = $1;
 598         }
 599         | string {
 600                 $$ = $1;
 601         }
 602         | embedded_scm {
 603                 $$ = $1;
 604         }
 605         | full_markup {
 606                 $$ = $1;
 607         }
 608         | DIGIT {
 609                 $$ = scm_int2num ($1);
 610         }
 611         ;
 612
 613 context_def_spec_block:
 614         CONTEXT '{' context_def_spec_body '}'
 615                 {
 616                 $$ = $3;
 617         }
 618         ;
 619
 620 context_def_spec_body:
 621         /**/ {
 622                 $$ = Context_def::make_scm ();
 623                 unsmob_context_def ($$)->set_spot (@$);
 624         }
 625         | CONTEXT_DEF_IDENTIFIER {
 626                 $$ = $1;
 627                 unsmob_context_def ($$)->set_spot (@$);
 628         }
 629         | context_def_spec_body GROBDESCRIPTIONS embedded_scm {
 630                 Context_def*td = unsmob_context_def ($$);
 631
 632                 for (SCM p = $3; scm_is_pair (p); p = scm_cdr (p)) {
 633                         SCM tag = scm_caar (p);
 634
 635                         /* TODO: should make new tag "grob-definition" ? */
 636                         td->add_context_mod (scm_list_3 (ly_symbol2scm ("assign"),
 637                                                         tag, scm_cons (scm_cdar (p), SCM_EOL)));
 638                 }
 639         }
 640         | context_def_spec_body context_mod {
 641                 unsmob_context_def ($$)->add_context_mod ($2);
 642         }
 643         ;
 644
 645
 646
 647 book_block:
 648         BOOK '{' book_body '}'  {
 649                 $$ = $3;
 650         }
 651         ;
 652
 653 /* FIXME:
 654    * Use 'handlers' like for toplevel-* stuff?
 655    * grok \layout and \midi?  */
 656 book_body:
 657         {
 658                 $$ = new Book;
 659                 $$->set_spot (@$);
 660                 $$->paper_ = dynamic_cast<Output_def*> (unsmob_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"))->clone ());
 661                 scm_gc_unprotect_object ($$->paper_->self_scm ());
 662                 $$->header_ = THIS->lexer_->lookup_identifier ("$globalheader");
 663         }
 664         | book_body paper_block {
 665                 $$->paper_ = $2;
 666                 scm_gc_unprotect_object ($2->self_scm ());
 667         }
 668         | book_body score_block {
 669                 SCM s = $2->self_scm ();
 670                 $$->add_score (s);
 671                 scm_gc_unprotect_object (s);
 672         }
 673         | book_body lilypond_header {
 674                 $$->header_ = $2;
 675         }
 676         | book_body error {
 677                 $$->paper_ = 0;
 678                 $$->scores_ = SCM_EOL;
 679         }
 680         | book_body object_id_setting {
 681                 $$->user_key_ = ly_scm2string ($2);
 682         }
 683         ;
 684
 685 score_block:
 686         SCORE '{' score_body '}'        {
 687                 $$ = $3;
 688         }
 689         ;
 690
 691 score_body:
 692         /**/    {
 693                 $$ = new Score;
 694                 $$->set_spot (@$);
 695         }
 696         | SCORE_IDENTIFIER {
 697                 $$ = new Score ( *unsmob_score ($1));
 698                 $$->set_spot (@$);
 699         }
 700         | score_body object_id_setting {
 701                 $$->user_key_ = ly_scm2string ($2);
 702         }
 703         | score_body Music {
 704                 SCM m = $2->self_scm ();
 705                 scm_gc_unprotect_object (m);
 706                 $$->set_music (m, THIS->self_scm ());
 707         }
 708         | score_body lilypond_header    {
 709                 $$->header_ = $2;
 710         }
 711         | score_body output_def {
 712                 if ($2->lookup_variable (ly_symbol2scm ("is-paper")) == SCM_BOOL_T)
 713                 {
 714                         THIS->parser_error (@2, _("\\paper cannot be in \\score. Use \\layout instead"));
 715
 716                 }
 717                 else
 718                 {
 719                         $$->defs_.push ($2);
 720                 }
 721                 scm_gc_unprotect_object ($2->self_scm ());
 722         }
 723         | score_body error {
 724                 $$->error_found_ = true;
 725         }
 726         ;
 727
 728
 729 /*
 730         OUTPUT DEF
 731 */
 732
 733 paper_block:
 734         output_def {
 735                 $$ = $1;
 736                 if ($$->lookup_variable (ly_symbol2scm ("is-paper")) != SCM_BOOL_T)
 737                 {
 738                         THIS->parser_error (@1, _("Need \\paper for paper block."));
 739                         $$ = get_paper (THIS);
 740                 }
 741         }
 742         ;
 743
 744
 745 output_def:
 746         output_def_body '}' {
 747                 $$ = $1;
 748
 749                 THIS->lexer_->remove_scope ();
 750                 THIS->lexer_->pop_state ();
 751         }
 752         ;
 753
 754 output_def_head:
 755         PAPER {
 756                 $$ = get_paper (THIS);
 757                 $$->input_origin_ = @$;
 758                 THIS->lexer_->add_scope ($$->scope_);
 759         }
 760         | MIDI    {
 761                 Output_def *p = get_midi (THIS);
 762                 $$ = p;
 763                 THIS->lexer_->add_scope (p->scope_);
 764         }
 765         | LAYOUT        {
 766                 Output_def *p = get_layout (THIS);
 767
 768                 THIS->lexer_->add_scope (p->scope_);
 769                 $$ = p;
 770         }
 771         ;
 772
 773
 774 output_def_body:
 775         output_def_head '{' {
 776                 $$ = $1;
 777                 $$->input_origin_.set_spot (@$);
 778                 THIS->lexer_->push_initial_state ();
 779         }
 780         | output_def_head '{' OUTPUT_DEF_IDENTIFIER     {
 781                 scm_gc_unprotect_object ($1->self_scm ());
 782                 Output_def *o = unsmob_output_def ($3);
 783                 o->input_origin_.set_spot (@$);
 784                 $$ = o;
 785                 THIS->lexer_->remove_scope ();
 786                 THIS->lexer_->add_scope (o->scope_);
 787                 THIS->lexer_->push_initial_state ();
 788         }
 789         | output_def_body assignment  {
 790
 791         }
 792         | output_def_body context_def_spec_block        {
 793                 assign_context_def ($$, $2);
 794         }
 795         | output_def_body tempo_event  {
 796                 /*
 797                         junk this ? there already is tempo stuff in
 798                         music.
 799                 */
 800                 int m = scm_to_int ($2->get_property ("metronome-count"));
 801                 Duration *d = unsmob_duration ($2->get_property ("tempo-unit"));
 802                 set_tempo ($$, d->get_length (), m);
 803                 scm_gc_unprotect_object ($2->self_scm ());
 804         }
 805         | output_def_body error {
 806
 807         }
 808         ;
 809
 810 tempo_event:
 811         TEMPO steno_duration '=' bare_unsigned  {
 812                 $$ = MY_MAKE_MUSIC ("MetronomeChangeEvent");
 813                 $$->set_property ("tempo-unit", $2);
 814                 $$->set_property ("metronome-count", scm_int2num ( $4));
 815         }
 816         ;
 817
 818 /*
 819 The representation of a  list is the
 820
 821   (LIST . LAST-CONS)
 822
 823  to have efficient append.  */
 824
 825 Music_list:
 826         /* empty */ {
 827                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 828         }
 829         | Music_list Music {
 830                 SCM s = $$;
 831                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 832                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 833
 834                 if (scm_is_pair (scm_cdr (s)))
 835                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 836                 else
 837                         scm_set_car_x (s, c); /* set first cons */
 838                 scm_set_cdr_x (s, c);  /* remember last cell */
 839         }
 840         | Music_list embedded_scm {
 841
 842         }
 843         | Music_list error {
 844                 Music * m = MY_MAKE_MUSIC("Music");
 845                 // ugh. code dup
 846                 m->set_property ("error-found", SCM_BOOL_T);
 847                 SCM s = $$;
 848                 SCM c = scm_cons (m->self_scm (), SCM_EOL);
 849                 scm_gc_unprotect_object (m->self_scm ()); /* UGH */
 850
 851                 if (scm_is_pair (scm_cdr (s)))
 852                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 853                 else
 854                         scm_set_car_x (s, c); /* set first cons */
 855                 scm_set_cdr_x (s, c);  /* remember last cell */
 856         }
 857         ;
 858
 859 Music:
 860         Simple_music
 861         | Composite_music
 862         ;
 863
 864 Alternative_music:
 865         /* empty */ {
 866                 $$ = SCM_EOL;
 867         }
 868         | ALTERNATIVE '{' Music_list '}' {
 869                 $$ = $3;
 870         }
 871         ;
 872
 873
 874 Repeated_music:
 875         REPEAT simple_string bare_unsigned Music Alternative_music
 876         {
 877                 Music *beg = $4;
 878                 int times = $3;
 879                 SCM alts = scm_is_pair ($5) ? scm_car ($5) : SCM_EOL;
 880                 if (times < scm_ilength (alts)) {
 881                   unsmob_music (scm_car (alts))
 882                     ->origin ()->warning (
 883                     _ ("More alternatives than repeats.  Junking excess alternatives."));
 884                   alts = ly_truncate_list (times, alts);
 885                 }
 886
 887
 888                 SCM proc = ly_lily_module_constant ("make-repeated-music");
 889
 890                 SCM mus = scm_call_1 (proc, $2);
 891                 scm_gc_protect_object (mus); // UGH.
 892                 Music *r = unsmob_music (mus);
 893                 if (beg)
 894                         {
 895                         r-> set_property ("element", beg->self_scm ());
 896                         scm_gc_unprotect_object (beg->self_scm ());
 897                         }
 898                 r->set_property ("repeat-count", scm_int2num (times >? 1));
 899
 900                 r-> set_property ("elements",alts);
 901                 if (ly_c_equal_p ($2, scm_makfrom0str ("tremolo"))) {
 902                         /*
 903                         TODO: move this code to Scheme.
 904                         */
 905
 906                         /*
 907                         we can not get durations and other stuff correct down the line, so we have to
 908                         add to the duration log here.
 909                         */
 910                         SCM func = ly_lily_module_constant ("shift-duration-log");
 911
 912                         int dots = ($3 % 3) ? 0 : 1;
 913                         int shift = -intlog2 ((dots) ? ($3*2/3) : $3);
 914
 915
 916                         if ($4->is_mus_type ("sequential-music"))
 917                         {
 918                                 int list_len = scm_ilength ($4->get_property ("elements"));
 919                                 if (list_len != 2)
 920                                         $4->origin ()->warning ("Chord tremolo must have 2 elements.");
 921                                 shift -= 1;
 922                                 r->compress (Moment (Rational (1, list_len)));
 923                         }
 924                         scm_call_3 (func, r->self_scm (), scm_int2num (shift), scm_int2num (dots));
 925
 926                 }
 927                 r->set_spot (*$4->origin ());
 928
 929                 $$ = r;
 930         }
 931         ;
 932
 933 Sequential_music:
 934         SEQUENTIAL '{' Music_list '}'           {
 935                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 936                 $$->set_property ("elements", scm_car ($3));
 937                 $$->set_spot (@$);
 938         }
 939         | '{' Music_list '}'            {
 940                 $$ = MY_MAKE_MUSIC ("SequentialMusic");
 941                 $$->set_property ("elements", scm_car ($2));
 942                 $$->set_spot (@$);
 943         }
 944         ;
 945
 946 Simultaneous_music:
 947         SIMULTANEOUS '{' Music_list '}'{
 948                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 949                 $$->set_property ("elements", scm_car ($3));
 950                 $$->set_spot (@$);
 951
 952         }
 953         | simul_open Music_list simul_close     {
 954                 $$ = MY_MAKE_MUSIC ("SimultaneousMusic");
 955                 $$->set_property ("elements", scm_car ($2));
 956                 $$->set_spot (@$);
 957         }
 958         ;
 959
 960 Simple_music:
 961         event_chord             { $$ = $1; }
 962         | MUSIC_IDENTIFIER {
 963                 $$ = unsmob_music ($1);
 964         }
 965         | music_property_def
 966         | context_change
 967         ;
 968
 969
 970 optional_context_mod:
 971         /**/ { $$ = SCM_EOL; }
 972         | WITH { THIS->lexer_->push_initial_state (); }
 973         '{' context_mod_list '}'
 974         {
 975                 THIS->lexer_->pop_state ();
 976                 $$ = $4;
 977         }
 978         ;
 979
 980 context_mod_list:
 981         /* */  { $$ = SCM_EOL; }
 982         | context_mod_list context_mod  {
 983                  $$ = scm_cons ($2, $1);
 984         }
 985         ;
 986
 987
 988 Composite_music:
 989         Prefix_composite_music { $$ = $1; }
 990         | Grouped_music_list { $$ = $1; }
 991         ;
 992
 993 Grouped_music_list:
 994         Simultaneous_music              { $$ = $1; }
 995         | Sequential_music              { $$ = $1; }
 996         ;
 997
 998 Generic_prefix_music_scm:
 999         MUSIC_FUNCTION {
1000                 $$ = scm_list_2 ($1, make_input (@$));
1001         }
1002         | MUSIC_FUNCTION_SCM embedded_scm {
1003                 $$ = scm_list_3 ($1, make_input (@$), $2);
1004         }
1005         | MUSIC_FUNCTION_MARKUP full_markup {
1006                 $$ = scm_list_3 ($1, make_input (@$), $2);
1007         }
1008         | MUSIC_FUNCTION_MUSIC Music {
1009                 $$ = scm_list_3 ($1, make_input (@$), $2->self_scm ());
1010                 scm_gc_unprotect_object ($2->self_scm ());
1011         }
1012         | MUSIC_FUNCTION_SCM_MUSIC embedded_scm Music {
1013                 $$ = scm_list_4 ($1, make_input (@$), $2, $3->self_scm ());
1014                 scm_gc_unprotect_object ($3->self_scm ());
1015         }
1016         | MUSIC_FUNCTION_SCM_SCM embedded_scm embedded_scm {
1017                 $$ = scm_list_4 ($1, make_input (@$), $2, $3);
1018         }
1019         | MUSIC_FUNCTION_SCM_SCM_MUSIC embedded_scm embedded_scm Music {
1020                 $$ = scm_list_5 ($1, make_input (@$), $2, $3, $4->self_scm ());
1021         }
1022         | MUSIC_FUNCTION_MARKUP_MUSIC full_markup Music {
1023                 $$ = scm_list_4 ($1, make_input (@$), $2, $3->self_scm ());
1024                 scm_gc_unprotect_object ($3->self_scm ());
1025         }
1026         | MUSIC_FUNCTION_MARKUP_MARKUP full_markup full_markup {
1027                 $$ = scm_list_4 ($1, make_input (@$), $2, $3);
1028         }
1029         | MUSIC_FUNCTION_MUSIC_MUSIC Music Music {
1030                 $$ = scm_list_4 ($1, make_input (@$), $2->self_scm (), $3->self_scm ());
1031                 scm_gc_unprotect_object ($2->self_scm ());
1032                 scm_gc_unprotect_object ($3->self_scm ());
1033         }
1034         | MUSIC_FUNCTION_SCM_MUSIC_MUSIC embedded_scm Music Music {
1035                 $$ = scm_list_5 ($1, make_input (@$), $2, $3->self_scm (), $4->self_scm ());
1036                 scm_gc_unprotect_object ($4->self_scm ());
1037                 scm_gc_unprotect_object ($3->self_scm ());
1038         }
1039         | MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC full_markup Music Music {
1040                 $$ = scm_list_5 ($1, make_input (@$), $2, $3->self_scm (), $4->self_scm ());
1041                 scm_gc_unprotect_object ($3->self_scm ());
1042                 scm_gc_unprotect_object ($4->self_scm ());
1043         }
1044         ;
1045
1046 Generic_prefix_music:
1047         Generic_prefix_music_scm {
1048                 SCM func = scm_car ($1);
1049                 Input *loc = unsmob_input (scm_cadr ($1));
1050                 SCM args = scm_cddr ($1);
1051                 SCM sig = scm_object_property (func, ly_symbol2scm ("music-function-signature"));
1052
1053                 SCM type_check_proc = ly_lily_module_constant ("type-check-list");
1054                 bool ok  = true;
1055
1056                 if (!to_boolean (scm_call_3  (type_check_proc, scm_cadr ($1), sig, args)))
1057                 {
1058                         THIS->error_level_ = 1;
1059                         ok = false;
1060                 }
1061
1062                 SCM m = SCM_EOL;
1063                 if (ok)
1064                         m = scm_apply_0 (func, scm_cons (THIS->self_scm(),
1065                                                          scm_cdr ($1)));
1066
1067                 if (unsmob_music (m))
1068                         {
1069                         $$ = unsmob_music (m);
1070                         scm_gc_protect_object (m);
1071                         }
1072                 else
1073                         {
1074                         if (ok)
1075                                 loc->error (_ ("Music head function should return Music object."));
1076                         $$ = MY_MAKE_MUSIC ("Music");
1077                         }
1078                 $$->set_spot (*loc);
1079         }
1080         ;
1081
1082
1083 Prefix_composite_music:
1084         Generic_prefix_music {
1085                 $$ = $1;
1086         }
1087         | CONTEXT simple_string '=' simple_string optional_context_mod Music {
1088                 $$ = context_spec_music ($2, $4, $6, $5);
1089
1090         }
1091         | CONTEXT simple_string optional_context_mod Music {
1092                 $$ = context_spec_music ($2, SCM_UNDEFINED, $4, $3);
1093         }
1094         | NEWCONTEXT simple_string optional_context_mod Music {
1095                 $$ = context_spec_music ($2, get_next_unique_context_id (), $4,
1096                         $3);
1097         }
1098
1099         | TIMES fraction Music
1100
1101         {
1102                 int n = scm_to_int (scm_car ($2)); int d = scm_to_int (scm_cdr ($2));
1103                 Music *mp = $3;
1104
1105                 $$= MY_MAKE_MUSIC ("TimeScaledMusic");
1106                 $$->set_spot (@$);
1107
1108                 $$->set_property ("element", mp->self_scm ());
1109                 scm_gc_unprotect_object (mp->self_scm ());
1110                 $$->set_property ("numerator", scm_int2num (n));
1111                 $$->set_property ("denominator", scm_int2num (d));
1112                 $$->compress (Moment (Rational (n,d)));
1113
1114         }
1115         | Repeated_music                { $$ = $1; }
1116         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
1117                 $$ = MY_MAKE_MUSIC ("TransposedMusic");
1118                 Music *p = $4;
1119                 Pitch from = *unsmob_pitch ($2);
1120                 Pitch to = *unsmob_pitch ($3);
1121
1122                 p->transpose (pitch_interval (from, to));
1123                 $$->set_property ("element", p->self_scm ());
1124                 scm_gc_unprotect_object (p->self_scm ());
1125         }
1126         | mode_changing_head Grouped_music_list {
1127                 if ($1 == ly_symbol2scm ("chords"))
1128                 {
1129                   Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
1130                   chm->set_property ("element", $2->self_scm ());
1131                   $$ = chm;
1132                   scm_gc_unprotect_object ($2->self_scm ());
1133                 }
1134                 else
1135                 {
1136                   $$ = $2;
1137                 }
1138                 THIS->lexer_->pop_state ();
1139         }
1140         | mode_changing_head_with_context optional_context_mod Grouped_music_list {
1141                 $$ = context_spec_music ($1, get_next_unique_context_id (),
1142                                          $3, $2);
1143                 if ($1 == ly_symbol2scm ("ChordNames"))
1144                 {
1145                   Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
1146                   chm->set_property ("element", $$->self_scm ());
1147                   scm_gc_unprotect_object ($$->self_scm ());
1148                   $$ = chm;
1149                 }
1150                 THIS->lexer_->pop_state ();
1151         }
1152         | relative_music        { $$ = $1; }
1153         | re_rhythmed_music     { $$ = $1; }
1154         | TAG embedded_scm Music {
1155                 tag_music ($3, $2, @$);
1156                 $$ = $3;
1157         }
1158         ;
1159
1160 mode_changing_head:
1161         NOTEMODE {
1162                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
1163                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1164
1165                 $$ = ly_symbol2scm ("notes");
1166         }
1167         | DRUMMODE
1168                 {
1169                 SCM nn = THIS->lexer_->lookup_identifier ("drumPitchNames");
1170                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1171
1172                 $$ = ly_symbol2scm ("drums");
1173         }
1174         | FIGUREMODE {
1175                 THIS->lexer_->push_figuredbass_state ();
1176
1177                 $$ = ly_symbol2scm ("figures");
1178         }
1179         | CHORDMODE {
1180                 SCM nn = THIS->lexer_->lookup_identifier ("chordmodifiers");
1181                 THIS->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1182                 nn = THIS->lexer_->lookup_identifier ("pitchnames");
1183                 THIS->lexer_->push_chord_state (alist_to_hashq (nn));
1184                 $$ = ly_symbol2scm ("chords");
1185
1186         }
1187         | LYRICMODE
1188                 { THIS->lexer_->push_lyric_state ();
1189                 $$ = ly_symbol2scm ("lyrics");
1190         }
1191         ;
1192
1193 mode_changing_head_with_context:
1194         DRUMS {
1195                 SCM nn = THIS->lexer_->lookup_identifier ("drumPitchNames");
1196                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
1197
1198                 $$ = ly_symbol2scm ("DrumStaff");
1199         }
1200         | FIGURES {
1201                 THIS->lexer_->push_figuredbass_state ();
1202
1203                 $$ = ly_symbol2scm ("FiguredBass");
1204         }
1205         | CHORDS {
1206                 SCM nn = THIS->lexer_->lookup_identifier ("chordmodifiers");
1207                 THIS->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1208                 nn = THIS->lexer_->lookup_identifier ("pitchnames");
1209                 THIS->lexer_->push_chord_state (alist_to_hashq (nn));
1210                 $$ = ly_symbol2scm ("ChordNames");
1211         }
1212         | LYRICS
1213                 { THIS->lexer_->push_lyric_state ();
1214                 $$ = ly_symbol2scm ("Lyrics");
1215         }
1216         ;
1217
1218
1219 relative_music:
1220         RELATIVE absolute_pitch Music {
1221                 Music *m = $3;
1222                 Pitch start = *unsmob_pitch ($2);
1223                 $$ = make_music_relative (start, m);
1224                 scm_gc_unprotect_object (m->self_scm ());
1225         }
1226         | RELATIVE Composite_music {
1227                 Music *m = $2;
1228
1229                 Pitch middle_c (0, 0, 0);
1230                 $$ = make_music_relative (middle_c, m);
1231                 scm_gc_unprotect_object (m->self_scm ());
1232         }
1233         ;
1234
1235 new_lyrics:
1236         ADDLYRICS { THIS->lexer_->push_lyric_state (); }
1237         /*cont */
1238         Grouped_music_list {
1239         /* Can also use Music at the expensive of two S/Rs similar to
1240            \repeat \alternative */
1241                 THIS->lexer_->pop_state ();
1242
1243                 $$ = scm_cons ($3->self_scm (), SCM_EOL);
1244         }
1245         | new_lyrics ADDLYRICS {
1246                 THIS->lexer_->push_lyric_state ();
1247         } Grouped_music_list {
1248                 THIS->lexer_->pop_state ();
1249                 $$ = scm_cons ($4->self_scm (), $1);
1250         }
1251         ;
1252
1253 re_rhythmed_music:
1254         Grouped_music_list new_lyrics {
1255                 Music * voice = $1;
1256                 SCM name = get_first_context_id (scm_makfrom0str ("Voice"), voice);
1257                 if (!scm_is_string (name))
1258                 {
1259                         name = get_next_unique_lyrics_context_id ();
1260                         voice = context_spec_music (scm_makfrom0str ("Voice"),
1261                                                     name,
1262                                                     voice, SCM_EOL);
1263                 }
1264
1265                 SCM context = scm_makfrom0str ("Lyrics");
1266                 Music *all = MY_MAKE_MUSIC ("SimultaneousMusic");
1267
1268                 SCM lst = SCM_EOL;
1269                 for (SCM s = $2; scm_is_pair (s); s = scm_cdr (s))
1270                 {
1271                         Music *music = unsmob_music (scm_car (s));
1272                         Music *com = make_lyric_combine_music (name, music);
1273                         Music *csm = context_spec_music (context,
1274                                 get_next_unique_context_id (), com, SCM_EOL);
1275                         lst = scm_cons (csm->self_scm (), lst);
1276                 }
1277                 all->set_property ("elements", scm_cons (voice->self_scm (),
1278                         lst));
1279                 $$ = all;
1280                 scm_gc_unprotect_object (voice->self_scm ());
1281         }
1282         | LYRICSTO simple_string {
1283                 THIS->lexer_->push_lyric_state ();
1284         } Music {
1285                 THIS->lexer_->pop_state ();
1286                 Music *music = $4;
1287                 SCM name = $2;
1288                 $$ = make_lyric_combine_music (name, music);
1289                 scm_gc_unprotect_object (music->self_scm ());
1290         }
1291         ;
1292
1293 context_change:
1294         CHANGE STRING '=' STRING  {
1295                 Music*t = MY_MAKE_MUSIC ("ContextChange");
1296                 t-> set_property ("change-to-type", scm_string_to_symbol ($2));
1297                 t-> set_property ("change-to-id", $4);
1298
1299                 $$ = t;
1300                 $$->set_spot (@$);
1301         }
1302         ;
1303
1304 property_operation:
1305         STRING '=' scalar {
1306                 $$ = scm_list_3 (ly_symbol2scm ("assign"),
1307                         scm_string_to_symbol ($1), $3);
1308         }
1309         | UNSET simple_string {
1310                 $$ = scm_list_2 (ly_symbol2scm ("unset"),
1311                         scm_string_to_symbol ($2));
1312         }
1313         | OVERRIDE simple_string embedded_scm '=' embedded_scm {
1314                 $$ = scm_list_4 (ly_symbol2scm ("push"),
1315                         scm_string_to_symbol ($2), $3, $5);
1316         }
1317         | REVERT simple_string embedded_scm {
1318                 $$ = scm_list_3 (ly_symbol2scm ("pop"),
1319                         scm_string_to_symbol ($2), $3);
1320         }
1321         ;
1322
1323 context_def_mod:
1324         CONSISTS { $$ = ly_symbol2scm ("consists"); }
1325         | REMOVE { $$ = ly_symbol2scm ("remove"); }
1326
1327         | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
1328         | DENIES { $$ = ly_symbol2scm ("denies"); }
1329
1330         | ALIAS { $$ = ly_symbol2scm ("alias"); }
1331         | TYPE { $$ = ly_symbol2scm ("translator-type"); }
1332         | DESCRIPTION { $$ = ly_symbol2scm ("description"); }
1333         | NAME { $$ = ly_symbol2scm ("context-name"); }
1334         ;
1335
1336 context_mod:
1337         property_operation { $$ = $1; }
1338         | context_def_mod STRING {
1339                 $$ = scm_list_2 ($1, $2);
1340         }
1341         ;
1342
1343 context_prop_spec:
1344         simple_string {
1345                 if (!is_regular_identifier ($1))
1346                 {
1347                         @$.error (_("Grob name should be alphanumeric"));
1348                 }
1349
1350                 $$ = scm_list_2 (ly_symbol2scm ("Bottom"),
1351                         scm_string_to_symbol ($1));
1352         }
1353         | simple_string '.' simple_string {
1354                 $$ = scm_list_2 (scm_string_to_symbol ($1),
1355                         scm_string_to_symbol ($3));
1356         }
1357         ;
1358
1359 music_property_def:
1360         OVERRIDE context_prop_spec embedded_scm '=' scalar {
1361                 $$ = property_op_to_music (scm_list_4 (
1362                         ly_symbol2scm ("poppush"),
1363                         scm_cadr ($2),
1364                         $3, $5));
1365                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1366         }
1367         | REVERT context_prop_spec embedded_scm {
1368                 $$ = property_op_to_music (scm_list_3 (
1369                         ly_symbol2scm ("pop"),
1370                         scm_cadr ($2),
1371                         $3));
1372
1373                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1374         }
1375         | SET context_prop_spec '=' scalar {
1376                 $$ = property_op_to_music (scm_list_3 (
1377                         ly_symbol2scm ("assign"),
1378                         scm_cadr ($2),
1379                         $4));
1380                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1381         }
1382         | UNSET context_prop_spec {
1383                 $$ = property_op_to_music (scm_list_2 (
1384                         ly_symbol2scm ("unset"),
1385                         scm_cadr ($2)));
1386                 $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
1387         }
1388         | ONCE music_property_def {
1389                 SCM e = $2->get_property ("element");
1390                 unsmob_music (e)->set_property ("once", SCM_BOOL_T);
1391                 $$ = $2;
1392
1393         }
1394         ;
1395
1396
1397 string:
1398         STRING {
1399                 $$ = $1;
1400         }
1401         | STRING_IDENTIFIER {
1402                 $$ = $1;
1403         }
1404         | string '+' string {
1405                 $$ = scm_string_append (scm_list_2 ($1, $3));
1406         }
1407         ;
1408
1409 simple_string: STRING {
1410                 $$ = $1;
1411         }
1412         | LYRICS_STRING {
1413                 $$ = $1;
1414         }
1415         ;
1416
1417 scalar: string {
1418                 $$ = $1;
1419         }
1420         | LYRICS_STRING {
1421                 $$ = $1;
1422         }
1423         | bare_int {
1424                 $$ = scm_int2num ($1);
1425         }
1426         | embedded_scm {
1427                 $$ = $1;
1428         }
1429         | full_markup {
1430                 $$ = $1;
1431         }
1432         | DIGIT {
1433                 $$ = scm_int2num ($1);
1434         }
1435         ;
1436
1437 /*
1438
1439 pre_events doesn't contain anything. It is a trick:
1440
1441 Adding pre_events to the simple_element
1442 makes the choice between
1443
1444   string:  STRING
1445
1446 and
1447
1448   simple_element: STRING
1449
1450 a single shift/reduction conflict.
1451
1452 nevertheless, this is not very clean, and we should find a different
1453 solution.
1454
1455 */
1456 pre_events: /* empty */
1457         ;
1458
1459 event_chord:
1460         pre_events simple_element post_events   {
1461                 SCM elts = $2-> get_property ("elements");
1462
1463                 elts = ly_append2 (elts, scm_reverse_x ($3, SCM_EOL));
1464
1465                 $2->set_property ("elements", elts);
1466                 /* why is this giving wrong start location? -ns
1467                  * $2->set_spot (@$); */
1468                 Input i;
1469                 i.set_location (@2, @3);
1470                 $2->set_spot (i);
1471                 $$ = $2;
1472         }
1473         | command_element
1474         | note_chord_element
1475         ;
1476
1477
1478 note_chord_element:
1479         chord_body optional_notemode_duration post_events
1480         {
1481                 SCM dur = unsmob_duration ($2)->smobbed_copy ();
1482                 SCM es = $1->get_property ("elements");
1483                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1484
1485                 for (SCM s = es; scm_is_pair (s); s = scm_cdr (s))
1486                   unsmob_music (scm_car (s))->set_property ("duration", dur);
1487                 es = ly_append2 (es, postevs);
1488
1489                 $1-> set_property ("elements", es);
1490                 $1->set_spot (@$);
1491                 $$ = $1;
1492         }
1493         ;
1494
1495 chord_open: '<'
1496         ;
1497
1498 chord_close: '>'
1499         ;
1500
1501 simul_open: DOUBLE_ANGLE_OPEN
1502         ;
1503
1504 simul_close: DOUBLE_ANGLE_CLOSE
1505         ;
1506
1507 chord_body:
1508         chord_open chord_body_elements chord_close
1509         {
1510                 $$ = MY_MAKE_MUSIC ("EventChord");
1511                 $$->set_spot (@$);
1512                 $$->set_property ("elements",
1513                         scm_reverse_x ($2, SCM_EOL));
1514         }
1515         ;
1516
1517 chord_body_elements:
1518         /* empty */             { $$ = SCM_EOL; }
1519         | chord_body_elements chord_body_element {
1520                 $$ = scm_cons ($2->self_scm (), $1);
1521                 scm_gc_unprotect_object ($2->self_scm ());
1522         }
1523         ;
1524
1525 chord_body_element:
1526         pitch exclamations questions octave_check post_events
1527         {
1528                 int q = $3;
1529                 int ex = $2;
1530                 SCM check = $4;
1531                 SCM post = $5;
1532
1533                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1534                 n->set_property ("pitch", $1);
1535                 n->set_spot (@$);
1536                 if (q % 2)
1537                         n->set_property ("cautionary", SCM_BOOL_T);
1538                 if (ex % 2 || q % 2)
1539                         n->set_property ("force-accidental", SCM_BOOL_T);
1540
1541                 if (scm_is_pair (post)) {
1542                         SCM arts = scm_reverse_x (post, SCM_EOL);
1543                         n->set_property ("articulations", arts);
1544                 }
1545                 if (scm_is_number (check))
1546                 {
1547                         int q = scm_to_int (check);
1548                         n->set_property ("absolute-octave", scm_int2num (q-1));
1549                 }
1550
1551
1552                 $$ = n;
1553         }
1554         | DRUM_PITCH post_events {
1555                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
1556                 n->set_property ("duration", $2);
1557                 n->set_property ("drum-type", $1);
1558                 n->set_spot (@$);
1559
1560                 if (scm_is_pair ($2)) {
1561                         SCM arts = scm_reverse_x ($2, SCM_EOL);
1562                         n->set_property ("articulations", arts);
1563                 }
1564                 $$ = n;
1565         }
1566         ;
1567
1568 add_quote:
1569         ADDQUOTE string Music {
1570                 SCM adder = ly_lily_module_constant ("add-quotable");
1571
1572                 scm_call_2 (adder, $2, $3->self_scm ());
1573                 scm_gc_unprotect_object ($3->self_scm ());
1574         }
1575         ;
1576
1577 command_element:
1578         command_req {
1579                 $$ = MY_MAKE_MUSIC ("EventChord");
1580                 $$->set_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1581                 scm_gc_unprotect_object ($1->self_scm ());
1582
1583                 $$-> set_spot (@$);
1584                 $1-> set_spot (@$);
1585         }
1586         | SKIP duration_length {
1587                 Music *skip = MY_MAKE_MUSIC ("SkipMusic");
1588                 skip->set_property ("duration", $2);
1589                 skip->set_spot (@$);
1590                 $$ = skip;
1591         }
1592         | OCTAVE pitch {
1593                 Music *m = MY_MAKE_MUSIC ("RelativeOctaveCheck");
1594                 $$ = m;
1595                 $$->set_spot (@$);
1596                 $$->set_property ("pitch", $2);
1597         }
1598         | E_LEFTSQUARE {
1599                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1600                 m->set_property ("span-direction", scm_int2num (START));
1601                 m->set_spot (@$);
1602
1603                 $$ = MY_MAKE_MUSIC ("EventChord");
1604                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1605                 scm_gc_unprotect_object (m->self_scm ());
1606                 $$->set_spot (@$);
1607         }
1608         | E_RIGHTSQUARE {
1609                 Music *m = MY_MAKE_MUSIC ("LigatureEvent");
1610                 m->set_property ("span-direction", scm_int2num (STOP));
1611                 m->set_spot (@$);
1612
1613                 $$ = MY_MAKE_MUSIC ("EventChord");
1614                 $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
1615                 $$->set_spot (@$);
1616                 scm_gc_unprotect_object (m->self_scm ());
1617         }
1618         | E_BACKSLASH {
1619                 $$ = MY_MAKE_MUSIC ("VoiceSeparator");
1620                 $$->set_spot (@$);
1621         }
1622         | '|'      {
1623                 SCM pipe = THIS->lexer_->lookup_identifier ("pipeSymbol");
1624
1625                 if (Music * m = unsmob_music (pipe))
1626                         $$ = m->clone ();
1627                 else
1628                         $$ = MY_MAKE_MUSIC ("BarCheck");
1629
1630                 $$->set_spot (@$);
1631         }
1632         | TRANSPOSITION pitch {
1633                 Pitch middle_c;
1634                 Pitch sounds_as_c = pitch_interval (*unsmob_pitch ($2), middle_c);
1635                 $$ = set_property_music (ly_symbol2scm ("instrumentTransposition"),
1636                                          sounds_as_c.smobbed_copy());
1637                 $$->set_spot (@$);
1638                 $$ = context_spec_music (ly_symbol2scm ("Staff"), SCM_UNDEFINED,
1639                         $$, SCM_EOL);
1640         }
1641         | BAR STRING                    {
1642                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1643
1644                 Music *csm = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1645                                         t, SCM_EOL);
1646                 $$ = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED, csm, SCM_EOL);
1647                 $$->set_spot (@$);
1648                 t->set_spot (@$);
1649         }
1650         | PARTIAL duration_length       {
1651                 Moment m = - unsmob_duration ($2)->get_length ();
1652                 Music *p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1653                 p->set_spot (@$);
1654                 p = context_spec_music (ly_symbol2scm ("Timing"), SCM_UNDEFINED,
1655                                         p, SCM_EOL);
1656                 p = context_spec_music (ly_symbol2scm ("Score"), SCM_UNDEFINED,
1657                                         p, SCM_EOL);
1658                 $$ = p;
1659         }
1660         | CLEF STRING  {
1661                 SCM proc = ly_lily_module_constant ("make-clef-set");
1662
1663                 SCM result = scm_call_1 (proc, $2);
1664                 scm_gc_protect_object (result);
1665                 $$ = unsmob_music (result);
1666         }
1667         | TIME_T fraction  {
1668                 SCM proc = ly_lily_module_constant ("make-time-signature-set");
1669
1670                 SCM result = scm_apply_2   (proc, scm_car ($2), scm_cdr ($2), SCM_EOL);
1671                 scm_gc_protect_object (result);
1672                 $$ = unsmob_music (result);
1673         }
1674         | MARK scalar {
1675                 SCM proc = ly_lily_module_constant ("make-mark-set");
1676
1677                 SCM result = scm_call_1 (proc, $2);
1678                 scm_gc_protect_object (result);
1679                 $$ = unsmob_music (result);
1680         }
1681         ;
1682
1683 command_req:
1684         E_TILDE {
1685                 $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent");
1686         }
1687         | MARK DEFAULT  {
1688                 Music *m = MY_MAKE_MUSIC ("MarkEvent");
1689                 $$ = m;
1690         }
1691         | tempo_event {
1692                 $$ = $1;
1693         }
1694         | KEY DEFAULT {
1695                 Music *key = MY_MAKE_MUSIC ("KeyChangeEvent");
1696                 $$ = key;
1697         }
1698         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1699
1700                 Music *key = MY_MAKE_MUSIC ("KeyChangeEvent");
1701                 if (scm_ilength ($3) > 0)
1702                 {
1703                         key->set_property ("pitch-alist", $3);
1704                         key->set_property ("tonic", Pitch (0,0,0).smobbed_copy ());
1705                         key->transpose (* unsmob_pitch ($2));
1706                 } else {
1707                         THIS->parser_error (@3, _ ("Second argument must be pitch list."));
1708                 }
1709
1710                 $$ = key;
1711         }
1712         ;
1713
1714
1715 post_events:
1716         /* empty */ {
1717                 $$ = SCM_EOL;
1718         }
1719         | post_events post_event {
1720                 $2->set_spot (@2);
1721                 $$ = scm_cons ($2->self_scm (), $$);
1722                 scm_gc_unprotect_object ($2->self_scm ());
1723         }
1724         | post_events tagged_post_event {
1725                 $2 -> set_spot (@2);
1726                 $$ = scm_cons ($2->self_scm (), $$);
1727                 scm_gc_unprotect_object ($2->self_scm ());
1728         }
1729         ;
1730
1731
1732 tagged_post_event:
1733         '-' TAG embedded_scm post_event {
1734                 tag_music ($4, $3, @$);
1735                 $$ = $4;
1736         }
1737         ;
1738
1739
1740 post_event:
1741         direction_less_event {
1742                 $$ = $1;
1743         }
1744         | HYPHEN {
1745                 if (!THIS->lexer_->is_lyric_state ())
1746                         THIS->parser_error (@1, _ ("Have to be in Lyric mode for lyrics"));
1747                 $$ = MY_MAKE_MUSIC ("HyphenEvent");
1748         }
1749         | EXTENDER {
1750                 if (!THIS->lexer_->is_lyric_state ())
1751                         THIS->parser_error (@1, _ ("Have to be in Lyric mode for lyrics"));
1752                 $$ = MY_MAKE_MUSIC ("ExtenderEvent");
1753         }
1754         | script_dir direction_reqd_event {
1755                 if ($1)
1756                         $2->set_property ("direction", scm_int2num ($1));
1757                 $$ = $2;
1758         }
1759         | script_dir direction_less_event {
1760                 if ($1)
1761                         $2->set_property ("direction", scm_int2num ($1));
1762                 $$ = $2;
1763         }
1764         | string_number_event
1765         ;
1766
1767 string_number_event:
1768         E_UNSIGNED {
1769                 Music *s = MY_MAKE_MUSIC ("StringNumberEvent");
1770                 s->set_property ("string-number", scm_int2num ($1));
1771                 s->set_spot (@$);
1772                 $$ = s;
1773         }
1774         ;
1775
1776 direction_less_char:
1777         '['  {
1778                 $$ = ly_symbol2scm ("bracketOpenSymbol");
1779         }
1780         | ']'  {
1781                 $$ = ly_symbol2scm ("bracketCloseSymbol");
1782         }
1783         | '~'  {
1784                 $$ = ly_symbol2scm ("tildeSymbol");
1785         }
1786         | '('  {
1787                 $$ = ly_symbol2scm ("parenthesisOpenSymbol");
1788         }
1789         | ')'  {
1790                 $$ = ly_symbol2scm ("parenthesisCloseSymbol");
1791         }
1792         | E_EXCLAMATION  {
1793                 $$ = ly_symbol2scm ("escapedExclamationSymbol");
1794         }
1795         | E_OPEN  {
1796                 $$ = ly_symbol2scm ("escapedParenthesisOpenSymbol");
1797         }
1798         | E_CLOSE  {
1799                 $$ = ly_symbol2scm ("escapedParenthesisCloseSymbol");
1800         }
1801         | E_BIGGER  {
1802                 $$ = ly_symbol2scm ("escapedBiggerSymbol");
1803         }
1804         | E_SMALLER  {
1805                 $$ = ly_symbol2scm ("escapedSmallerSymbol");
1806         }
1807         ;
1808
1809 direction_less_event:
1810         direction_less_char {
1811                 SCM predefd = THIS->lexer_->lookup_identifier_symbol ($1);
1812                 Music * m = 0;
1813                 if (unsmob_music (predefd))
1814                 {
1815                         m = unsmob_music (predefd)->clone ();
1816                 }
1817                 else
1818                 {
1819                         m = MY_MAKE_MUSIC ("Music");
1820                 }
1821                 m->set_spot (@$);
1822                 $$ = m;
1823         }
1824         | EVENT_IDENTIFIER      {
1825                 $$ = unsmob_music ($1);
1826         }
1827         | tremolo_type  {
1828                Music *a = MY_MAKE_MUSIC ("TremoloEvent");
1829                a->set_spot (@$);
1830                a->set_property ("tremolo-type", scm_int2num ($1));
1831                $$ = a;
1832         }
1833         ;
1834
1835 direction_reqd_event:
1836         gen_text_def {
1837                 $$ = $1;
1838         }
1839         | script_abbreviation {
1840                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1841                 Music *a = MY_MAKE_MUSIC ("ArticulationEvent");
1842                 if (scm_is_string (s))
1843                         a->set_property ("articulation-type", s);
1844                 else THIS->parser_error (@1, _ ("Expecting string as script definition"));
1845                 $$ = a;
1846         }
1847         ;
1848
1849 octave_check:
1850         /**/ { $$ = SCM_EOL; }
1851         | '='  { $$ = scm_int2num (0); }
1852         | '=' sub_quotes { $$ = scm_int2num ($2); }
1853         | '=' sup_quotes { $$ = scm_int2num ($2); }
1854         ;
1855
1856 sup_quotes:
1857         '\'' {
1858                 $$ = 1;
1859         }
1860         | sup_quotes '\'' {
1861                 $$ ++;
1862         }
1863         ;
1864
1865 sub_quotes:
1866         ',' {
1867                 $$ = 1;
1868         }
1869         | sub_quotes ',' {
1870                 $$++;
1871         }
1872         ;
1873
1874 steno_pitch:
1875         NOTENAME_PITCH  {
1876                 $$ = $1;
1877         }
1878         | NOTENAME_PITCH sup_quotes     {
1879                 Pitch p = *unsmob_pitch ($1);
1880                 p = p.transposed (Pitch ($2,0,0));
1881                 $$ = p.smobbed_copy ();
1882         }
1883         | NOTENAME_PITCH sub_quotes      {
1884                 Pitch p =* unsmob_pitch ($1);
1885                 p = p.transposed (Pitch (-$2,0,0));
1886                 $$ = p.smobbed_copy ();
1887         }
1888         ;
1889
1890 /*
1891 ugh. duplication
1892 */
1893
1894 steno_tonic_pitch:
1895         TONICNAME_PITCH {
1896                 $$ = $1;
1897         }
1898         | TONICNAME_PITCH sup_quotes    {
1899                 Pitch p = *unsmob_pitch ($1);
1900                 p = p.transposed (Pitch ($2,0,0));
1901                 $$ = p.smobbed_copy ();
1902         }
1903         | TONICNAME_PITCH sub_quotes     {
1904                 Pitch p =* unsmob_pitch ($1);
1905
1906                 p = p.transposed (Pitch (-$2,0,0));
1907                 $$ = p.smobbed_copy ();
1908         }
1909         ;
1910
1911 pitch:
1912         steno_pitch {
1913                 $$ = $1;
1914         }
1915         ;
1916
1917 pitch_also_in_chords:
1918         pitch
1919         | steno_tonic_pitch
1920         ;
1921
1922 gen_text_def:
1923         full_markup {
1924                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1925                 t->set_property ("text", $1);
1926                 t->set_spot (@$);
1927                 $$ = t;
1928         }
1929         | string {
1930                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent");
1931                 t->set_property ("text",
1932                         make_simple_markup ($1));
1933                 t->set_spot (@$);
1934                 $$ = t;
1935
1936         }
1937         | DIGIT {
1938                 Music *t = MY_MAKE_MUSIC ("FingerEvent");
1939                 t->set_property ("digit", scm_int2num ($1));
1940                 t->set_spot (@$);
1941                 $$ = t;
1942         }
1943         ;
1944
1945 script_abbreviation:
1946         '^'             {
1947                 $$ = scm_makfrom0str ("Hat");
1948         }
1949         | '+'           {
1950                 $$ = scm_makfrom0str ("Plus");
1951         }
1952         | '-'           {
1953                 $$ = scm_makfrom0str ("Dash");
1954         }
1955         | '|'           {
1956                 $$ = scm_makfrom0str ("Bar");
1957         }
1958         | '>'           {
1959                 $$ = scm_makfrom0str ("Larger");
1960         }
1961         | '.'           {
1962                 $$ = scm_makfrom0str ("Dot");
1963         }
1964         | '_' {
1965                 $$ = scm_makfrom0str ("Underscore");
1966         }
1967         ;
1968
1969 script_dir:
1970         '_'     { $$ = DOWN; }
1971         | '^'   { $$ = UP; }
1972         | '-'   { $$ = CENTER; }
1973         ;
1974
1975
1976 absolute_pitch:
1977         steno_pitch     {
1978                 $$ = $1;
1979         }
1980         ;
1981
1982 duration_length:
1983         multiplied_duration {
1984                 $$ = $1;
1985         }
1986         ;
1987
1988 optional_notemode_duration:
1989         {
1990                 Duration dd = THIS->default_duration_;
1991                 $$ = dd.smobbed_copy ();
1992
1993                 THIS->beam_check ($$);
1994         }
1995         | multiplied_duration   {
1996                 $$ = $1;
1997                 THIS->default_duration_ = *unsmob_duration ($$);
1998
1999                 THIS->beam_check ($$);
2000         }
2001         ;
2002
2003 steno_duration:
2004         bare_unsigned dots              {
2005                 int len = 0;
2006                 if (!is_duration ($1))
2007                         THIS->parser_error (@1, _f ("not a duration: %d", $1));
2008                 else
2009                         len = intlog2 ($1);
2010
2011                 $$ = Duration (len, $2).smobbed_copy ();
2012         }
2013         | DURATION_IDENTIFIER dots      {
2014                 Duration *d = unsmob_duration ($1);
2015                 Duration k (d->duration_log (), d->dot_count () + $2);
2016                 *d = k;
2017                 $$ = $1;
2018         }
2019         ;
2020
2021 multiplied_duration:
2022         steno_duration {
2023                 $$ = $1;
2024         }
2025         | multiplied_duration '*' bare_unsigned {
2026                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
2027         }
2028         | multiplied_duration '*' FRACTION {
2029                 Rational  m (scm_to_int (scm_car ($3)), scm_to_int (scm_cdr ($3)));
2030
2031                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
2032         }
2033         ;
2034
2035 fraction:
2036         FRACTION { $$ = $1; }
2037         | UNSIGNED '/' UNSIGNED {
2038                 $$ = scm_cons (scm_int2num ($1), scm_int2num ($3));
2039         }
2040         ;
2041
2042 dots:
2043         /* empty */     {
2044                 $$ = 0;
2045         }
2046         | dots '.' {
2047                 $$ ++;
2048         }
2049         ;
2050
2051 tremolo_type:
2052         ':'     {
2053                 $$ = 0;
2054         }
2055         | ':' bare_unsigned {
2056                 if (!is_duration ($2))
2057                         THIS->parser_error (@2, _f ("not a duration: %d", $2));
2058                 $$ = $2;
2059         }
2060         ;
2061
2062 bass_number:
2063         DIGIT   {
2064                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2065                 $$ = scm_list_2 (ly_lily_module_constant ("number-markup"),
2066                                 $$);
2067         }
2068         | UNSIGNED {
2069                 $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
2070                 $$ = scm_list_2 (ly_lily_module_constant ("number-markup"),
2071                                 $$);
2072         }
2073         | STRING { $$ = $1; }
2074         ;
2075
2076 bass_mod:
2077         '-'     { $$ = -2; }
2078         | '+'   { $$ = 2; }
2079         | '!'   { $$ = 0; }
2080         ;
2081
2082 bass_figure:
2083         FIGURE_SPACE {
2084                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2085                 $$ = bfr->self_scm ();
2086                 scm_gc_unprotect_object ($$);
2087         }
2088         | bass_number  {
2089                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
2090                 $$ = bfr->self_scm ();
2091
2092                 bfr->set_property ("figure", $1);
2093
2094                 scm_gc_unprotect_object ($$);
2095         }
2096         | bass_figure bass_mod {
2097                 Music *m = unsmob_music ($1);
2098                 if ($2) {
2099                         SCM salter = m->get_property ("alteration");
2100                         int alter = scm_is_number (salter) ? scm_to_int (salter) : 0;
2101                         m->set_property ("alteration",
2102                                 scm_int2num (alter + $2));
2103                 } else {
2104                         m->set_property ("alteration", scm_int2num (0));
2105                 }
2106         }
2107         ;
2108
2109 br_bass_figure:
2110         '[' bass_figure {
2111                 $$ = $2;
2112                 unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
2113         }
2114         | bass_figure   {
2115                 $$ = $1;
2116         }
2117         | br_bass_figure ']' {
2118                 $$ = $1;
2119                 unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
2120         }
2121         ;
2122
2123 figure_list:
2124         /**/            {
2125                 $$ = SCM_EOL;
2126         }
2127         | figure_list br_bass_figure {
2128                 $$ = scm_cons ($2, $1);
2129         }
2130         ;
2131
2132 figure_spec:
2133         FIGURE_OPEN figure_list FIGURE_CLOSE {
2134                 Music *m = MY_MAKE_MUSIC ("EventChord");
2135                 $2 = scm_reverse_x ($2, SCM_EOL);
2136                 m->set_property ("elements", $2);
2137                 $$ = m->self_scm ();
2138         }
2139         ;
2140
2141
2142 optional_rest:
2143         /**/   { $$ = 0; }
2144         | REST { $$ = 1; }
2145         ;
2146
2147 simple_element:
2148         pitch exclamations questions octave_check optional_notemode_duration optional_rest {
2149                 if (!THIS->lexer_->is_note_state ())
2150                         THIS->parser_error (@1, _ ("Have to be in Note mode for notes"));
2151
2152                 Music *n = 0;
2153                 if ($6)
2154                         n = MY_MAKE_MUSIC ("RestEvent");
2155                 else
2156                         n = MY_MAKE_MUSIC ("NoteEvent");
2157
2158                 n->set_property ("pitch", $1);
2159                 n->set_property ("duration", $5);
2160
2161                 if (scm_is_number ($4))
2162                 {
2163                         int q = scm_to_int ($4);
2164                         n->set_property ("absolute-octave", scm_int2num (q-1));
2165                 }
2166
2167                 if ($3 % 2)
2168                         n->set_property ("cautionary", SCM_BOOL_T);
2169                 if ($2 % 2 || $3 % 2)
2170                         n->set_property ("force-accidental", SCM_BOOL_T);
2171
2172                 Music *v = MY_MAKE_MUSIC ("EventChord");
2173                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2174                 scm_gc_unprotect_object (n->self_scm ());
2175
2176                 v->set_spot (@$);
2177                 n->set_spot (@$);
2178                 $$ = v;
2179         }
2180         | DRUM_PITCH optional_notemode_duration {
2181                 Music *n = MY_MAKE_MUSIC ("NoteEvent");
2182                 n->set_property ("duration", $2);
2183                 n->set_property ("drum-type", $1);
2184
2185                 Music *v = MY_MAKE_MUSIC ("EventChord");
2186                 v->set_property ("elements", scm_list_1 (n->self_scm ()));
2187                 scm_gc_unprotect_object (n->self_scm ());
2188                 v->set_spot (@$);
2189                 n->set_spot (@$);
2190                 $$ = v;
2191
2192         }
2193         | figure_spec optional_notemode_duration {
2194                 Music *m = unsmob_music ($1);
2195                 m->set_spot (@$);
2196                 for (SCM s = m->get_property ("elements"); scm_is_pair (s); s = scm_cdr (s))
2197                 {
2198                         unsmob_music (scm_car (s))->set_property ("duration", $2);
2199                 }
2200                 $$ = m;
2201         }
2202         | RESTNAME optional_notemode_duration           {
2203                 Music *ev = 0;
2204                 if (ly_scm2string ($1) == "s") {
2205                         /* Space */
2206                         ev = MY_MAKE_MUSIC ("SkipEvent");
2207                   }
2208                 else {
2209                         ev = MY_MAKE_MUSIC ("RestEvent");
2210
2211                     }
2212                 ev->set_property ("duration", $2);
2213                 ev->set_spot (@$);
2214                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2215                 velt->set_property ("elements", scm_list_1 (ev->self_scm ()));
2216                 velt->set_spot (@$);
2217
2218                 scm_gc_unprotect_object (ev->self_scm ());
2219
2220                 $$ = velt;
2221         }
2222         | MULTI_MEASURE_REST optional_notemode_duration         {
2223                 SCM proc = ly_lily_module_constant ("make-multi-measure-rest");
2224                 SCM mus = scm_call_2 (proc, $2, make_input (@$));
2225                 scm_gc_protect_object (mus);
2226                 $$ = unsmob_music (mus);
2227         }
2228
2229         | lyric_element optional_notemode_duration      {
2230                 if (!THIS->lexer_->is_lyric_state ())
2231                         THIS->parser_error (@1, _ ("Have to be in Lyric mode for lyrics"));
2232
2233                 Music *lreq = MY_MAKE_MUSIC ("LyricEvent");
2234                 lreq->set_property ("text", $1);
2235                 lreq->set_property ("duration",$2);
2236                 lreq->set_spot (@$);
2237                 Music *velt = MY_MAKE_MUSIC ("EventChord");
2238                 velt->set_property ("elements", scm_list_1 (lreq->self_scm ()));
2239
2240                 $$= velt;
2241         }
2242         | new_chord {
2243                 if (!THIS->lexer_->is_chord_state ())
2244                         THIS->parser_error (@1, _ ("Have to be in Chord mode for chords"));
2245                 $$ = unsmob_music ($1);
2246         }
2247         ;
2248
2249 lyric_element:
2250         lyric_markup {
2251                 $$ = $1;
2252         }
2253         | LYRICS_STRING {
2254                 $$ = make_simple_markup ($1);
2255         }
2256         ;
2257
2258 new_chord:
2259         steno_tonic_pitch optional_notemode_duration   {
2260                 $$ = make_chord ($1, $2, SCM_EOL);
2261         }
2262         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2263                 SCM its = scm_reverse_x ($4, SCM_EOL);
2264                 $$ = make_chord ($1, $2, scm_cons ($3, its));
2265         }
2266         ;
2267
2268 chord_items:
2269         /**/ {
2270                 $$ = SCM_EOL;
2271         }
2272         | chord_items chord_item {
2273                 $$ = scm_cons ($2, $$);
2274         }
2275         ;
2276
2277 chord_separator:
2278         CHORD_COLON {
2279                 $$ = ly_symbol2scm ("chord-colon");
2280         }
2281         | CHORD_CARET {
2282                 $$ = ly_symbol2scm ("chord-caret");
2283         }
2284         | CHORD_SLASH steno_tonic_pitch {
2285                 $$ = scm_list_2 (ly_symbol2scm ("chord-slash"), $2);
2286         }
2287         | CHORD_BASS steno_tonic_pitch {
2288                 $$ = scm_list_2 (ly_symbol2scm ("chord-bass"), $2);
2289         }
2290         ;
2291
2292 chord_item:
2293         chord_separator {
2294                 $$ = $1;
2295         }
2296         | step_numbers {
2297                 $$ = scm_reverse_x ($1, SCM_EOL);
2298         }
2299         | CHORD_MODIFIER  {
2300                 $$ = $1;
2301         }
2302         ;
2303
2304 step_numbers:
2305         step_number { $$ = scm_cons ($1, SCM_EOL); }
2306         | step_numbers '.' step_number {
2307                 $$ = scm_cons ($3, $$);
2308         }
2309         ;
2310
2311 step_number:
2312         bare_unsigned {
2313                 $$ = make_chord_step ($1, 0);
2314         }
2315         | bare_unsigned '+' {
2316                 $$ = make_chord_step ($1, SHARP);
2317         }
2318         | bare_unsigned CHORD_MINUS {
2319                 $$ = make_chord_step ($1, FLAT);
2320         }
2321         ;
2322
2323 /*
2324         UTILITIES
2325
2326 TODO: should deprecate in favor of Scheme?
2327
2328  */
2329 number_expression:
2330         number_expression '+' number_term {
2331                 $$ = scm_sum ($1, $3);
2332         }
2333         | number_expression '-' number_term {
2334                 $$ = scm_difference ($1, $3);
2335         }
2336         | number_term
2337         ;
2338
2339 number_term:
2340         number_factor {
2341                 $$ = $1;
2342         }
2343         | number_factor '*' number_factor {
2344                 $$ = scm_product ($1, $3);
2345         }
2346         | number_factor '/' number_factor {
2347                 $$ = scm_divide ($1, $3);
2348         }
2349         ;
2350
2351 number_factor:
2352         '-'  number_factor { /* %prec UNARY_MINUS */
2353                 $$ = scm_difference ($2, SCM_UNDEFINED);
2354         }
2355         | bare_number
2356         ;
2357
2358
2359 bare_number:
2360         UNSIGNED        {
2361                 $$ = scm_int2num ($1);
2362         }
2363         | REAL          {
2364                 $$ = $1;
2365         }
2366         | NUMBER_IDENTIFIER             {
2367                 $$ = $1;
2368         }
2369         | REAL NUMBER_IDENTIFIER        {
2370                 $$ = scm_make_real (scm_to_double ($1) *scm_to_double ($2));
2371         }
2372         | UNSIGNED NUMBER_IDENTIFIER    {
2373                 $$ = scm_make_real ($1 *scm_to_double ($2));
2374         }
2375         ;
2376
2377
2378 bare_unsigned:
2379         UNSIGNED {
2380                         $$ = $1;
2381         }
2382         | DIGIT {
2383                 $$ = $1;
2384         }
2385         ;
2386
2387 bare_int:
2388         bare_number {
2389                 if (scm_integer_p ($1) == SCM_BOOL_T)
2390                 {
2391                         int k = scm_to_int ($1);
2392                         $$ = k;
2393                 } else
2394                 {
2395                         THIS->parser_error (@1, _ ("need integer number arg"));
2396                         $$ = 0;
2397                 }
2398         }
2399         | '-' bare_int {
2400                 $$ = -$2;
2401         }
2402         ;
2403
2404 exclamations:
2405                 { $$ = 0; }
2406         | exclamations '!'      { $$ ++; }
2407         ;
2408
2409 questions:
2410                 { $$ = 0; }
2411         | questions '?' { $$ ++; }
2412         ;
2413
2414 /*
2415 This should be done more dynamically if possible.
2416 */
2417
2418 lyric_markup:
2419         LYRIC_MARKUP_IDENTIFIER {
2420                 $$ = $1;
2421         }
2422         | LYRIC_MARKUP
2423                 { THIS->lexer_->push_markup_state (); }
2424         markup_top {
2425                 $$ = $3;
2426                 THIS->lexer_->pop_state ();
2427         }
2428         ;
2429
2430 full_markup:
2431         MARKUP_IDENTIFIER {
2432                 $$ = $1;
2433         }
2434         | MARKUP
2435                 { THIS->lexer_->push_markup_state (); }
2436         markup_top {
2437                 $$ = $3;
2438                 THIS->lexer_->pop_state ();
2439         }
2440         ;
2441
2442 markup_top:
2443         markup_list {
2444                 $$ = scm_list_2 (ly_lily_module_constant ("line-markup"),  $1);
2445         }
2446         | markup_head_1_list simple_markup      {
2447                 $$ = scm_car (scm_call_2 (ly_lily_module_constant ("map-markup-command-list"), $1, scm_list_1 ($2)));
2448         }
2449         | simple_markup {
2450                 $$ = $1;
2451         }
2452         ;
2453
2454 markup_list:
2455         markup_composed_list {
2456                 $$ = $1;
2457         }
2458         | markup_braced_list {
2459                 $$ = $1;
2460         }
2461         ;
2462
2463 markup_composed_list:
2464         markup_head_1_list markup_braced_list {
2465                 $$ = scm_call_2 (ly_lily_module_constant ("map-markup-command-list"), $1, $2);
2466
2467         }
2468         ;
2469
2470 markup_braced_list:
2471         '{' markup_braced_list_body '}' {
2472                 $$ = scm_reverse_x ($2, SCM_EOL);
2473         }
2474         ;
2475
2476 markup_braced_list_body:
2477         /* empty */     {  $$ = scm_list (SCM_EOL); }
2478         | markup_braced_list_body markup {
2479                 $$ = scm_cons ($2, $1);
2480         }
2481         | markup_braced_list_body markup_list {
2482                 $$ = scm_append_x (scm_list_2 (scm_reverse_x ($2, SCM_EOL), $1));
2483         }
2484         ;
2485
2486 markup_head_1_item:
2487         MARKUP_HEAD_MARKUP0     {
2488                 $$ = scm_list_1 ($1);
2489         }
2490         | MARKUP_HEAD_SCM0_MARKUP1 embedded_scm {
2491                 $$ = scm_list_2 ($1, $2);
2492         }
2493         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm       {
2494                 $$ = scm_list_3 ($1, $2, $3);
2495         }
2496         ;
2497
2498 markup_head_1_list:
2499         markup_head_1_item      {
2500                 $$ = scm_list_1 ($1);
2501         }
2502         | markup_head_1_list markup_head_1_item {
2503                 $$ = scm_cons ($2, $1);
2504         }
2505         ;
2506
2507 simple_markup:
2508         STRING {
2509                 $$ = make_simple_markup ($1);
2510         }
2511         | MARKUP_IDENTIFIER {
2512                 $$ = $1;
2513         }
2514         | LYRIC_MARKUP_IDENTIFIER {
2515                 $$ = $1;
2516         }
2517         | STRING_IDENTIFIER {
2518                 $$ = $1;
2519         }
2520         | SCORE {
2521                 SCM nn = THIS->lexer_->lookup_identifier ("pitchnames");
2522                 THIS->lexer_->push_note_state (alist_to_hashq (nn));
2523         } '{' score_body '}' {
2524                 Score * sc = $4;
2525                 $$ = scm_list_2 (ly_lily_module_constant ("score-markup"), sc->self_scm ());
2526                 scm_gc_unprotect_object (sc->self_scm ());
2527                 THIS->lexer_->pop_state ();
2528         }
2529         | MARKUP_HEAD_SCM0 embedded_scm {
2530                 $$ = scm_list_2 ($1, $2);
2531         }
2532         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2533                 $$ = scm_list_4 ($1, $2, $3, $4);
2534         }
2535         | MARKUP_HEAD_SCM0_SCM1 embedded_scm embedded_scm {
2536                 $$ = scm_list_3 ($1, $2, $3);
2537         }
2538         | MARKUP_HEAD_EMPTY {
2539                 $$ = scm_list_1 ($1);
2540         }
2541         | MARKUP_HEAD_LIST0 markup_list {
2542                 $$ = scm_list_2 ($1,$2);
2543         }
2544         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2545                 $$ = scm_list_3 ($1, $2, $3);
2546         }
2547         ;
2548
2549 markup:
2550         markup_head_1_list simple_markup        {
2551                 $$ = scm_car (scm_call_2 (ly_lily_module_constant ("map-markup-command-list"), $1, scm_list_1 ($2)));
2552         }
2553         | simple_markup {
2554                 $$ = $1;
2555         }
2556         ;
2557
2558 %%
2559
2560 void
2561 Lily_parser::set_yydebug (bool )
2562 {
2563 #if 0
2564         yydebug = 1;
2565 #endif
2566 }
2567
2568 void
2569 Lily_parser::do_yyparse ()
2570 {
2571         yyparse ((void*)this);
2572 }
2573
2574
2575 /*
2576 Should make this optional?    It will also complain when you do
2577
2578         [s4]
2579
2580 which is entirely legitimate.
2581
2582 Or we can scrap it. Barchecks should detect wrong durations, and
2583 skipTypesetting speeds it up a lot.
2584 */
2585
2586 void
2587 Lily_parser::beam_check (SCM dur)
2588 {
2589   Duration *d = unsmob_duration (dur);
2590   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2591     {
2592       Music *m = unsmob_music (last_beam_start_);
2593       m->origin ()->warning (_ ("Suspect duration found following this beam"));
2594     }
2595   last_beam_start_ = SCM_EOL;
2596 }
2597
2598
2599
2600
2601 /*
2602
2603 It is a little strange to have this function in this file, but
2604 otherwise, we have to import music classes into the lexer.
2605
2606 */
2607 int
2608 Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
2609 {
2610         if (scm_is_string (sid)) {
2611                 *destination = sid;
2612                 return STRING_IDENTIFIER;
2613         } else if (scm_is_number (sid)) {
2614                 *destination = sid;
2615                 return NUMBER_IDENTIFIER;
2616         } else if (unsmob_context_def (sid)) {
2617                 *destination = unsmob_context_def (sid)->clone_scm ();
2618                 return CONTEXT_DEF_IDENTIFIER;
2619         } else if (unsmob_score (sid)) {
2620                 Score *score = new Score (*unsmob_score (sid));
2621                 *destination = score->self_scm ();
2622                 return SCORE_IDENTIFIER;
2623         } else if (Music *mus = unsmob_music (sid)) {
2624                 mus = mus->clone ();
2625                 *destination = mus->self_scm ();
2626                 unsmob_music (*destination)->
2627                         set_property ("origin", make_input (last_input_));
2628                 return dynamic_cast<Event*> (mus)
2629                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2630         } else if (unsmob_duration (sid)) {
2631                 *destination = unsmob_duration (sid)->smobbed_copy ();
2632                 return DURATION_IDENTIFIER;
2633         } else if (unsmob_output_def (sid)) {
2634                 Output_def *p = unsmob_output_def (sid);
2635                 p = p->clone ();
2636
2637                 *destination = p->self_scm ();
2638                 return OUTPUT_DEF_IDENTIFIER;
2639         } else if (Text_interface::markup_p (sid)) {
2640                 *destination = sid;
2641                 if (is_lyric_state ())
2642                         return LYRIC_MARKUP_IDENTIFIER;
2643                 return MARKUP_IDENTIFIER;
2644         }
2645
2646         return -1;
2647 }
2648
2649 Music *
2650 property_op_to_music (SCM op)
2651 {
2652         Music *m = 0;
2653         SCM tag = scm_car (op);
2654         SCM symbol = scm_cadr (op);
2655         SCM args = scm_cddr (op);
2656         SCM grob_val = SCM_UNDEFINED;
2657         SCM grob_sym = SCM_UNDEFINED;
2658         SCM val = SCM_UNDEFINED;
2659
2660         if (tag == ly_symbol2scm ("assign"))
2661                 {
2662                 m = MY_MAKE_MUSIC ("PropertySet");
2663                 val = scm_car (args);
2664                 }
2665         else if (tag == ly_symbol2scm ("unset"))
2666                 m = MY_MAKE_MUSIC ("PropertyUnset");
2667         else if (tag == ly_symbol2scm ("poppush")
2668                  || tag == ly_symbol2scm ("push"))
2669                 {
2670                 m = MY_MAKE_MUSIC ("OverrideProperty");
2671                 grob_sym = scm_car (args);
2672                 grob_val = scm_cadr (args);
2673                 }
2674         else if (tag == ly_symbol2scm ("pop")) {
2675                 m = MY_MAKE_MUSIC ("RevertProperty");
2676                 grob_sym = scm_car (args);
2677                 }
2678
2679         m->set_property ("symbol", symbol);
2680
2681         if (val != SCM_UNDEFINED)
2682                 m->set_property ("value", val);
2683         if (grob_val != SCM_UNDEFINED)
2684                 m->set_property ("grob-value", grob_val);
2685
2686         if (grob_sym != SCM_UNDEFINED)
2687                 {
2688                 bool itc = do_internal_type_checking_global;
2689                 /* UGH.
2690                 */
2691                 bool autobeam = ly_c_equal_p (symbol, ly_symbol2scm ("autoBeamSettings"));
2692                 if (autobeam)
2693                         do_internal_type_checking_global = false;
2694                 m->set_property ("grob-property", grob_sym);
2695                 if (autobeam)
2696                         do_internal_type_checking_global = itc;
2697                 }
2698
2699         if (tag == ly_symbol2scm ("poppush"))
2700                 m->set_property ("pop-first", SCM_BOOL_T);
2701
2702
2703         return m;
2704 }
2705
2706 Music*
2707 context_spec_music (SCM type, SCM id, Music *m, SCM ops)
2708 {
2709         Music *csm = MY_MAKE_MUSIC ("ContextSpeccedMusic");
2710
2711         csm->set_property ("element", m->self_scm ());
2712         scm_gc_unprotect_object (m->self_scm ());
2713
2714         csm->set_property ("context-type",
2715                 scm_is_symbol (type) ? type : scm_string_to_symbol (type));
2716         csm->set_property ("property-operations", ops);
2717
2718         if (scm_is_string (id))
2719                 csm->set_property ("context-id", id);
2720         return csm;
2721 }
2722
2723 SCM
2724 get_next_unique_context_id ()
2725 {
2726         return scm_makfrom0str ("$uniqueContextId");
2727 }
2728
2729
2730 SCM
2731 get_next_unique_lyrics_context_id ()
2732 {
2733         static int new_context_count;
2734         char s[128];
2735         snprintf (s, 1024, "uniqueContext%d", new_context_count++);
2736         return scm_makfrom0str (s);
2737 }