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--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9            Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13   Two shift/reduce problems:
  14     -
  15     -
  16  */
  17
  18 /*
  19
  20 the rules for who is protecting what are very shady. TODO: uniformise
  21 this.
  22
  23
  24 */
  25
  26 #include <ctype.h>
  27
  28 #include "translator-def.hh"
  29 #include "lily-guile.hh"
  30 #include "misc.hh"
  31 #include "my-lily-lexer.hh"
  32 #include "paper-def.hh"
  33 #include "midi-def.hh"
  34 #include "main.hh"
  35 #include "file-path.hh"
  36 #include "warn.hh"
  37 #include "dimensions.hh"
  38 #include "my-lily-parser.hh"
  39 #include "score.hh"
  40 #include "input-file-results.hh"
  41 #include "input.hh"
  42 #include "lilypond-input-version.hh"
  43 #include "scm-hash.hh"
  44 #include "auto-change-iterator.hh"
  45 #include "chord.hh"
  46 #include "ly-modules.hh"
  47 #include "music-sequence.hh"
  48
  49 bool
  50 regular_identifier_b (SCM id)
  51 {
  52   String str = ly_scm2string (id);
  53   char const *s = str.to_str0 () ;
  54
  55   bool v = true;
  56   while (*s && v)
  57    {
  58         v = v && isalpha (*s);
  59         s++;
  60    }
  61   return v;
  62 }
  63
  64
  65
  66 bool
  67 is_duration_b (int t)
  68 {
  69   return t && t == 1 << intlog2 (t);
  70 }
  71
  72 void
  73 set_music_properties (Music *p, SCM a)
  74 {
  75   for (SCM k = a; gh_pair_p (k); k = ly_cdr (k))
  76         {
  77         p->internal_set_mus_property (ly_caar (k), ly_cdar (k));
  78         }
  79 }
  80
  81
  82
  83 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  84
  85 Music*
  86 set_property_music (SCM sym, SCM value)
  87 {
  88         Music * p = MY_MAKE_MUSIC("PropertySet");
  89         p->set_mus_property ("symbol", sym);
  90         p->set_mus_property ("value", value);
  91         return p;
  92 }
  93
  94 Music*
  95 make_span_req (SCM name)
  96 {
  97   static SCM proc;
  98   if (!proc)
  99     proc = scm_c_eval_string ("old-span-event->event");
 100   SCM m = scm_call_1 (proc, name);
 101   scm_gc_protect_object (m);
 102   return unsmob_music (m);
 103 }
 104
 105 // needed for bison.simple's malloc () and free ()
 106
 107 // #include <malloc.h>
 108 #include <stdlib.h>
 109
 110
 111
 112 #define YYERROR_VERBOSE 1
 113
 114 #define YYPARSE_PARAM my_lily_parser
 115 #define YYLEX_PARAM my_lily_parser
 116 #define THIS\
 117         ((My_lily_parser *) my_lily_parser)
 118
 119 #define yyerror THIS->parser_error
 120
 121 %}
 122
 123 /* We use SCMs to do strings, because it saves us the trouble of
 124 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 125 of the parse stack onto the heap. */
 126
 127
 128 %union {
 129
 130     Link_array<Music> *reqvec;
 131
 132     String *string; // needed by the lexer as temporary scratch area.
 133     Music *music;
 134     Score *score;
 135     Scheme_hash_table *scmhash;
 136     Music_output_def * outputdef;
 137     SCM scm;
 138     int i;
 139 }
 140 %{
 141
 142 int
 143 yylex (YYSTYPE *s,  void * v)
 144 {
 145         My_lily_parser   *pars = (My_lily_parser*) v;
 146         My_lily_lexer * lex = pars->lexer_;
 147
 148         lex->lexval = (void*) s;
 149         return lex->yylex ();
 150 }
 151
 152
 153 %}
 154
 155 %pure_parser
 156
 157 /* tokens which are not keywords */
 158 %token AUTOCHANGE
 159 %token ALIAS
 160 %token APPLY
 161 %token ARPEGGIO
 162 %token ACCEPTS
 163 %token ALTERNATIVE
 164 %token BAR
 165 %token BREATHE
 166 %token CHORDMODIFIERS
 167 %token CHORDS
 168 %token CHAR_T
 169 %token CLEF
 170 %token CM_T
 171 %token CONSISTS
 172 %token DURATION
 173 %token SEQUENTIAL
 174 %token GROBDESCRIPTIONS
 175 %token SIMULTANEOUS
 176 %token CONSISTSEND
 177 %token DENIES
 178 %token DURATION
 179 %token EXTENDER
 180 %token FIGURES FIGURE_OPEN FIGURE_CLOSE
 181 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 182 %token GLISSANDO
 183 %token GRACE
 184 %token HEADER
 185 %token HYPHEN
 186 %token IN_T
 187 %token INVALID
 188 %token KEY
 189 %token LYRICS
 190 %token MARK
 191 %token MULTI_MEASURE_REST
 192 %token MIDI
 193 %token MM_T
 194 %token PITCH
 195 %token DEFAULT
 196 %token NAME
 197 %token PITCHNAMES
 198 %token NOTES
 199 %token ONCE
 200 %token PAPER
 201 %token PARTIAL
 202 %token PENALTY
 203 %token PROPERTY
 204 %token OVERRIDE SET REVERT
 205 %token PT_T
 206 %token RELATIVE
 207 %token REMOVE
 208 %token REPEAT
 209 %token ADDLYRICS
 210 %token PARTCOMBINE
 211 %token SCM_T
 212 %token SCORE
 213 %token SCRIPT
 214 %token SKIP
 215 %token SPANREQUEST
 216 %token STYLESHEET
 217 %token COMMANDSPANREQUEST
 218 %token TEMPO
 219 %token OUTPUTPROPERTY
 220 %token TIME_T
 221 %token TIMES
 222 %token TRANSLATOR
 223 %token TRANSPOSE
 224 %token TYPE
 225 %token UNSET
 226 %token CONTEXT
 227 %token REST
 228
 229 /* escaped */
 230 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 231 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 232 %token E_BACKSLASH
 233 %token <i> E_UNSIGNED
 234 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 235 %token FIGURE_SPACE
 236
 237 %type <i>       exclamations questions dots optional_rest
 238 %type <i>       bass_number bass_mod
 239 %type <scm>     br_bass_figure bass_figure figure_list figure_spec
 240 %token <i>      DIGIT
 241 %token <scm>    NOTENAME_PITCH
 242 %token <scm>    TONICNAME_PITCH
 243 %token <scm>    CHORDMODIFIER_PITCH
 244 %token <scm>    DURATION_IDENTIFIER
 245 %token <scm>    FRACTION
 246 %token <id>     IDENTIFIER
 247
 248
 249 %token <scm>    SCORE_IDENTIFIER
 250 %token <scm>    MUSIC_OUTPUT_DEF_IDENTIFIER
 251
 252 %token <scm>    NUMBER_IDENTIFIER
 253 %token <scm>    EVENT_IDENTIFIER
 254 %token <scm>    MUSIC_IDENTIFIER TRANSLATOR_IDENTIFIER
 255 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 256 %token <scm>    RESTNAME
 257 %token <scm>    STRING
 258 %token <scm>    SCM_T
 259 %token <i>      UNSIGNED
 260 %token <scm>   REAL
 261
 262 %type <outputdef> output_def
 263 %type <scm>     lilypond_header lilypond_header_body
 264 %type <music>   open_event_parens close_event_parens open_event close_event
 265 %type <music> event_with_dir event_that_take_dir verbose_event
 266 %type <i>       sub_quotes sup_quotes
 267 %type <music>   simple_element  event_chord command_element Simple_music  Composite_music
 268 %type <music>   Repeated_music
 269 %type <scm>     Alternative_music
 270 %type <i>       tremolo_type
 271 %type <i>       bare_int  bare_unsigned
 272 %type <i>       script_dir
 273 %type <scm>     identifier_init
 274
 275 %type <scm> steno_duration optional_notemode_duration multiplied_duration
 276 %type <scm>  verbose_duration
 277
 278 %type <reqvec>  pre_events post_events
 279 %type <music> gen_text_def
 280 %type <scm>   steno_pitch pitch absolute_pitch
 281 %type <scm>   explicit_pitch steno_tonic_pitch
 282
 283 %type <scm>     chord_additions chord_subtractions chord_notes chord_step
 284 %type <music>   chord
 285 %type <scm>     chord_note chord_inversion chord_bass
 286 %type <scm>     duration_length fraction
 287
 288 %type <scm>  embedded_scm scalar
 289 %type <music>   Music Sequential_music Simultaneous_music
 290 %type <music>   relative_music re_rhythmed_music part_combined_music
 291 %type <music>   property_def translator_change  simple_property_def
 292 %type <scm> Music_list
 293 %type <outputdef>  music_output_def_body
 294 %type <music> shorthand_command_req
 295 %type <music>   post_event
 296 %type <music> command_req verbose_command_req
 297 %type <music>   extender_req
 298 %type <music> hyphen_req
 299 %type <music> string_event
 300 %type <scm>     string bare_number number_expression number_term number_factor
 301
 302 %type <score>   score_block score_body
 303
 304 %type <scm>     translator_spec_block translator_spec_body
 305 %type <music>   tempo_event
 306 %type <scm> notenames_body notenames_block chordmodifiers_block
 307 %type <scm>     script_abbreviation
 308
 309
 310
 311 %left '-' '+'
 312
 313 /* We don't assign precedence to / and *, because we might need varied
 314 prec levels in different prods */
 315
 316 %left UNARY_MINUS
 317
 318 %%
 319
 320 lilypond:       /* empty */
 321         | lilypond toplevel_expression {}
 322         | lilypond assignment  { }
 323         | lilypond error {
 324                 THIS->error_level_  = 1;
 325         }
 326         | lilypond INVALID      {
 327                 THIS->error_level_  = 1;
 328         }
 329         ;
 330
 331 toplevel_expression:
 332         notenames_block                 {
 333                 THIS->lexer_->pitchname_tab_ =  $1;
 334         }
 335         | chordmodifiers_block                  {
 336                 THIS->lexer_->chordmodifier_tab_  = $1;
 337         }
 338         | lilypond_header {
 339                 THIS->input_file_->header_ = $1;
 340         }
 341         | score_block {
 342                 THIS->input_file_->scores_.push ($1);
 343         }
 344         | output_def {
 345                 if (dynamic_cast<Paper_def*> ($1))
 346                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultpaper"), $1->self_scm ());
 347                 else if (dynamic_cast<Midi_def*> ($1))
 348                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultmidi"), $1->self_scm ());
 349         }
 350         | embedded_scm {
 351                 // junk value
 352         }
 353         ;
 354
 355 embedded_scm:
 356         SCM_T
 357         | SCM_IDENTIFIER
 358         ;
 359
 360
 361 chordmodifiers_block:
 362         CHORDMODIFIERS notenames_body   {  $$ = $2; }
 363         ;
 364
 365 notenames_block:
 366         PITCHNAMES notenames_body   {  $$ = $2; }
 367         ;
 368
 369 notenames_body:
 370         embedded_scm    {
 371           int i = scm_ilength ($1);
 372
 373           SCM tab = scm_make_vector (gh_int2scm (i), SCM_EOL);
 374           for (SCM s = $1; gh_pair_p (s); s = ly_cdr (s)) {
 375                 SCM pt = ly_cdar (s);
 376                 if (!unsmob_pitch (pt))
 377                         THIS->parser_error ("Need pitch object.");
 378                 else
 379                         scm_hashq_set_x (tab, ly_caar (s), pt);
 380           }
 381
 382           $$ = tab;
 383         }
 384         ;
 385
 386 lilypond_header_body:
 387         {
 388                 $$ = ly_make_anonymous_module ();
 389                 THIS->lexer_->add_scope ($$);
 390         }
 391         | lilypond_header_body assignment  {
 392
 393         }
 394         ;
 395
 396 lilypond_header:
 397         HEADER '{' lilypond_header_body '}'     {
 398                 $$ = THIS->lexer_-> remove_scope();
 399         }
 400         ;
 401
 402
 403 /*
 404         DECLARATIONS
 405 */
 406 assignment:
 407         STRING {
 408                 THIS->push_spot ();
 409         }
 410         /* cont */ '=' identifier_init  {
 411
 412         /*
 413                 Should find generic way of associating input with objects.
 414         */
 415                 Input ip = THIS->pop_spot ();
 416
 417                 if (! regular_identifier_b ($1))
 418                 {
 419                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 420                 }
 421
 422                 THIS->lexer_->set_identifier ($1, $4);
 423
 424 /*
 425  TODO: devise standard for protection in parser.
 426
 427   The parser stack lives on the C-stack, which means that
 428 all objects can be unprotected as soon as they're here.
 429
 430 */
 431         }
 432         ;
 433
 434
 435
 436 identifier_init:
 437         score_block {
 438                 $$ = $1->self_scm ();
 439                 scm_gc_unprotect_object ($$);
 440         }
 441         | output_def {
 442                 $$ = $1->self_scm ();
 443                 scm_gc_unprotect_object ($$);
 444         }
 445         | translator_spec_block {
 446                 $$ = $1;
 447         }
 448         | Music  {
 449                 $$ = $1->self_scm ();
 450                 scm_gc_unprotect_object ($$);
 451         }
 452         | post_event {
 453                 $$ = $1->self_scm ();
 454                 scm_gc_unprotect_object ($$);
 455         }
 456         | verbose_duration {
 457                 $$ = $1;
 458         }
 459         | number_expression {
 460                 $$ = $1;
 461         }
 462         | string {
 463                 $$ = $1;
 464         }
 465         | embedded_scm  {
 466                 $$ = $1;
 467         }
 468         ;
 469
 470 translator_spec_block:
 471         TRANSLATOR '{' translator_spec_body '}'
 472                 {
 473                 $$ = $3;
 474         }
 475         ;
 476
 477 translator_spec_body:
 478         TRANSLATOR_IDENTIFIER   {
 479                 $$ = unsmob_translator_def ($1)->clone_scm ();
 480                 unsmob_translator_def ($$)-> set_spot (THIS->here_input ());
 481         }
 482         | TYPE STRING   {
 483                 $$ = Translator_def::make_scm ();
 484                 Translator_def*td =  unsmob_translator_def ($$);
 485                 td->translator_group_type_ = $2;
 486                 td->set_spot (THIS->here_input ());
 487         }
 488         | translator_spec_body STRING '=' embedded_scm                  {
 489                 unsmob_translator_def ($$)->add_property_assign ($2, $4);
 490         }
 491         | translator_spec_body STRING OVERRIDE embedded_scm '=' embedded_scm {
 492                 unsmob_translator_def ($$)
 493                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 494         }
 495         | translator_spec_body STRING SET embedded_scm '=' embedded_scm {
 496                 unsmob_translator_def ($$)
 497                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 498         }
 499         | translator_spec_body STRING REVERT embedded_scm  {
 500           unsmob_translator_def ($$)->add_pop_property (
 501                 scm_string_to_symbol ($2), $4);
 502         }
 503         | translator_spec_body NAME STRING  {
 504                 unsmob_translator_def ($$)->type_name_ = $3;
 505         }
 506         | translator_spec_body CONSISTS STRING  {
 507                 unsmob_translator_def ($$)->add_element ($3);
 508         }
 509         | translator_spec_body ALIAS STRING  {
 510                 Translator_def*td = unsmob_translator_def ($$);
 511                 td->type_aliases_ = scm_cons ($3, td->type_aliases_);
 512         }
 513         | translator_spec_body GROBDESCRIPTIONS embedded_scm {
 514                 Translator_def*td = unsmob_translator_def($$);
 515                 // td->add_property_assign (ly_symbol2scm ("allGrobDescriptions"), $3);
 516                 for (SCM p = $3; gh_pair_p (p); p = ly_cdr (p))
 517                         td->add_property_assign (scm_symbol_to_string (ly_caar (p)), ly_cdar (p));
 518         }
 519         | translator_spec_body CONSISTSEND STRING  {
 520                 unsmob_translator_def ($$)->add_last_element ( $3);
 521         }
 522         | translator_spec_body ACCEPTS STRING  {
 523                 unsmob_translator_def ($$)->set_acceptor ($3,true);
 524         }
 525         | translator_spec_body DENIES STRING  {
 526                 unsmob_translator_def ($$)->set_acceptor ($3,false);
 527         }
 528         | translator_spec_body REMOVE STRING  {
 529                 unsmob_translator_def ($$)->remove_element ($3);
 530         }
 531         ;
 532
 533 /*
 534         SCORE
 535 */
 536 score_block:
 537         SCORE {
 538                 THIS->push_spot ();
 539         }
 540         /*cont*/ '{' score_body '}'     {
 541                 THIS->pop_spot ();
 542                 $$ = $4;
 543                 if (!$$->defs_.size ())
 544                 {
 545                   Music_output_def *id =
 546                         unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 547                   $$->add_output (id ? id->clone () :  new Paper_def );
 548                 }
 549         }
 550         ;
 551
 552 score_body:
 553         Music   {
 554                 $$ = new Score;
 555
 556                 $$->set_spot (THIS->here_input ());
 557                 SCM m = $1->self_scm ();
 558                 scm_gc_unprotect_object (m);
 559
 560                 /*
 561                         guh.
 562                 */
 563                 SCM check_funcs = scm_c_eval_string ("toplevel-music-functions");
 564                 for (; gh_pair_p (check_funcs); check_funcs = gh_cdr (check_funcs))
 565                         m = gh_call1 (gh_car (check_funcs), m);
 566                 $$->music_ = m;
 567
 568         }
 569         | SCORE_IDENTIFIER {
 570                 $$ = new Score (*unsmob_score ($1));
 571                 $$->set_spot (THIS->here_input ());
 572         }
 573         | score_body lilypond_header    {
 574                 $$->header_ = $2;
 575         }
 576         | score_body output_def {
 577                 $$->add_output ($2);
 578         }
 579         | score_body error {
 580
 581         }
 582         ;
 583
 584
 585 /*
 586         MIDI
 587 */
 588 output_def:
 589         music_output_def_body '}' {
 590                 $$ = $1;
 591                 THIS-> lexer_-> remove_scope ();
 592         }
 593         ;
 594
 595 music_output_def_body:
 596         MIDI '{'    {
 597                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultmidi"));
 598
 599
 600                 Midi_def* p =0;
 601                 if (id)
 602                         p = dynamic_cast<Midi_def*> (id->clone ());
 603                 else
 604                         p = new Midi_def;
 605
 606                 $$ = p;
 607                 THIS->lexer_->add_scope (p->scope_);
 608         }
 609         | PAPER '{'     {
 610                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 611                   Paper_def *p = 0;
 612                 if (id)
 613                         p = dynamic_cast<Paper_def*> (id->clone ());
 614                 else
 615                         p = new Paper_def;
 616                 THIS-> lexer_->add_scope (p->scope_);
 617                 $$ = p;
 618         }
 619         | PAPER '{' MUSIC_OUTPUT_DEF_IDENTIFIER         {
 620                 Music_output_def *p = unsmob_music_output_def ($3);
 621                 p = p->clone ();
 622                 THIS->lexer_->add_scope (p->scope_);
 623                 $$ = p;
 624         }
 625         | MIDI '{' MUSIC_OUTPUT_DEF_IDENTIFIER  {
 626                 Music_output_def *p = unsmob_music_output_def ($3);
 627                 p = p->clone ();
 628
 629                 THIS->lexer_->add_scope (p->scope_);
 630                 $$ = p;
 631         }
 632         | music_output_def_body assignment  {
 633
 634         }
 635         | music_output_def_body translator_spec_block   {
 636                 $$->assign_translator ($2);
 637         }
 638         | music_output_def_body STYLESHEET embedded_scm {
 639                 dynamic_cast<Paper_def*> ($$)-> style_sheet_ = $3;
 640         }
 641         | music_output_def_body tempo_event  {
 642                 /*
 643                         junk this ? there already is tempo stuff in
 644                         music.
 645                 */
 646                 int m = gh_scm2int ( $2->get_mus_property ("metronome-count"));
 647                 Duration *d = unsmob_duration ($2->get_mus_property ("duration"));
 648                 Midi_def * md = dynamic_cast<Midi_def*> ($$);
 649                 if (md)
 650                         md->set_tempo (d->get_length (), m);
 651         }
 652         | music_output_def_body error {
 653
 654         }
 655         ;
 656
 657 tempo_event:
 658         TEMPO steno_duration '=' bare_unsigned  {
 659                 $$ = MY_MAKE_MUSIC("TempoEvent");
 660                 $$->set_mus_property ("duration", $2);
 661                 $$->set_mus_property ("metronome-count", gh_int2scm ( $4));
 662         }
 663         ;
 664
 665 /*
 666 The representation of a  list is the
 667
 668   (LIST . LAST-CONS)
 669
 670  to have  efficient append.
 671 */
 672 Music_list: /* empty */ {
 673                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 674         }
 675         | Music_list Music {
 676                 SCM s = $$;
 677                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 678                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 679                 if (gh_pair_p (ly_cdr (s)))
 680                         gh_set_cdr_x (ly_cdr (s), c); /* append */
 681                 else
 682                         gh_set_car_x (s, c); /* set first cons */
 683                 gh_set_cdr_x (s, c) ;  /* remember last cell */
 684         }
 685         | Music_list error {
 686         }
 687         ;
 688
 689
 690 Music:
 691         Simple_music
 692         | Composite_music
 693         ;
 694
 695 Alternative_music:
 696         /* empty */ {
 697                 $$ = SCM_EOL;
 698         }
 699         | ALTERNATIVE '{' Music_list '}' {
 700                 $$ = $3;
 701         }
 702         ;
 703
 704 Repeated_music:
 705         REPEAT string bare_unsigned Music Alternative_music
 706         {
 707                 Music *beg = $4;
 708                 int times = $3;
 709                 SCM alts = gh_pair_p ($5) ? gh_car ($5) : SCM_EOL;
 710                 if (times < scm_ilength (alts)) {
 711                   unsmob_music (gh_car (alts))
 712                     ->origin ()->warning (
 713                     _("More alternatives than repeats.  Junking excess alternatives."));
 714                   alts = ly_truncate_list (times, alts);
 715                 }
 716
 717
 718                 static SCM proc;
 719                 if (!proc)
 720                         proc = scm_c_eval_string ("make-repeated-music");
 721
 722                 SCM mus = scm_call_1 (proc, $2);
 723                 scm_gc_protect_object (mus); // UGH.
 724                 Music *r =unsmob_music (mus);
 725                 if (beg)
 726                         {
 727                         r-> set_mus_property ("element", beg->self_scm ());
 728                         scm_gc_unprotect_object (beg->self_scm ());
 729                         }
 730                 r->set_mus_property ("repeat-count", gh_int2scm (times >? 1));
 731
 732                 r-> set_mus_property ("elements",alts);
 733                 if (gh_equal_p ($2, scm_makfrom0str ("tremolo")))
 734                 {
 735                 /*
 736                 we can not get durations and other stuff correct down the line, so we have to
 737                 add to the duration log here.
 738                 */
 739                         SCM func = scm_primitive_eval (ly_symbol2scm ("shift-duration-log"));
 740                         if (($3 % 3) == 0)
 741                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3*2/3)),gh_int2scm(1));
 742                         else
 743                           gh_call3 (func, r->self_scm (), gh_int2scm(-intlog2 ($3)), gh_int2scm(0));
 744                 }
 745                 r->set_spot (*$4->origin ());
 746
 747                 $$ = r;
 748         }
 749         ;
 750
 751 Sequential_music:
 752         SEQUENTIAL '{' Music_list '}'           {
 753                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 754                 $$->set_mus_property ("elements", ly_car ($3));
 755                 $$->set_spot(THIS->here_input());
 756         }
 757         | '{' Music_list '}'            {
 758                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 759                 $$->set_mus_property ("elements", ly_car ($2));
 760                 $$->set_spot(THIS->here_input());
 761         }
 762         ;
 763
 764 Simultaneous_music:
 765         SIMULTANEOUS '{' Music_list '}'{
 766                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 767                 $$->set_mus_property ("elements", ly_car ($3));
 768                 $$->set_spot(THIS->here_input());
 769
 770         }
 771         | '<' Music_list '>'    {
 772                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 773                 $$->set_mus_property ("elements", ly_car ($2));
 774                 $$->set_spot(THIS->here_input());
 775         }
 776         ;
 777
 778 Simple_music:
 779         event_chord             { $$ = $1; }
 780         | OUTPUTPROPERTY embedded_scm embedded_scm '=' embedded_scm     {
 781                 SCM pred = $2;
 782                 if (!gh_symbol_p ($3))
 783                 {
 784                         THIS->parser_error (_ ("Second argument must be a symbol"));
 785                 }
 786                 /* Should check # args */
 787                 if (!gh_procedure_p (pred))
 788                 {
 789                         THIS->parser_error (_ ("First argument must be a procedure taking one argument"));
 790                 }
 791
 792                 Music*m = MY_MAKE_MUSIC("OutputPropertySetMusic");
 793                 m->set_mus_property ("predicate", pred);
 794                 m->set_mus_property ("grob-property", $3);
 795                 m->set_mus_property ("grob-value",  $5);
 796
 797                 $$ = m;
 798         }
 799         | MUSIC_IDENTIFIER {
 800                 $$ = unsmob_music ($1)->clone ();
 801
 802                 $$->set_spot (THIS->here_input());
 803         }
 804         | property_def
 805         | translator_change
 806         ;
 807
 808
 809 Composite_music:
 810         CONTEXT STRING Music    {
 811                 Music*csm =MY_MAKE_MUSIC("ContextSpeccedMusic");
 812
 813                 csm->set_mus_property ("element", $3->self_scm ());
 814                 scm_gc_unprotect_object ($3->self_scm ());
 815
 816                 csm->set_mus_property ("context-type",$2);
 817                 csm->set_mus_property ("context-id", scm_makfrom0str (""));
 818
 819                 $$ = csm;
 820         }
 821         | AUTOCHANGE STRING Music       {
 822         Music*chm = MY_MAKE_MUSIC("AutoChangeMusic");
 823                 chm->set_mus_property ("element", $3->self_scm ());
 824                 chm->set_mus_property ("iterator-ctor", Auto_change_iterator::constructor_proc);
 825
 826                 scm_gc_unprotect_object ($3->self_scm ());
 827                 chm->set_mus_property ("what", $2);
 828
 829                 $$ = chm;
 830                 chm->set_spot (*$3->origin ());
 831         }
 832         | GRACE Music {
 833 #if 1
 834         /*
 835                 The other version is for easier debugging  of
 836                 Sequential_music_iterator in combination with grace notes.
 837         */
 838
 839                 SCM start = THIS->lexer_->lookup_identifier ("startGraceMusic");
 840                 SCM stop = THIS->lexer_->lookup_identifier ("stopGraceMusic");
 841                 Music *startm = unsmob_music (start);
 842                 Music *stopm = unsmob_music (stop);
 843
 844                 SCM ms = SCM_EOL;
 845                 if (stopm) {
 846                         stopm = stopm->clone ();
 847                         ms = scm_cons (stopm->self_scm (), ms);
 848                         scm_gc_unprotect_object (stopm->self_scm ());
 849                 }
 850                 ms = scm_cons ($2->self_scm (), ms);
 851                 scm_gc_unprotect_object ($2->self_scm());
 852                 if (startm) {
 853                         startm = startm->clone ();
 854                         ms = scm_cons (startm->self_scm () , ms);
 855                         scm_gc_unprotect_object (startm->self_scm ());
 856                 }
 857
 858
 859                 Music* seq = MY_MAKE_MUSIC("SequentialMusic");
 860                 seq->set_mus_property ("elements", ms);
 861
 862
 863                 $$ = MY_MAKE_MUSIC("GraceMusic");
 864                 $$->set_mus_property ("element", seq->self_scm ());
 865                 scm_gc_unprotect_object (seq->self_scm ());
 866 #else
 867                 $$ = MY_MAKE_MUSIC("GraceMusic");
 868                 $$->set_mus_property ("element", $2->self_scm ());
 869                 scm_gc_unprotect_object ($2->self_scm ());
 870 #endif
 871         }
 872         | CONTEXT string '=' string Music {
 873                 Music * csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
 874
 875                 csm->set_mus_property ("element", $5->self_scm ());
 876                 scm_gc_unprotect_object ($5->self_scm ());
 877
 878                 csm->set_mus_property ("context-type", $2);
 879                 csm->set_mus_property ("context-id", $4);
 880
 881                 $$ = csm;
 882         }
 883         | TIMES {
 884                 THIS->push_spot ();
 885         }
 886         /* CONTINUED */
 887                 fraction Music
 888
 889         {
 890                 int n = gh_scm2int (ly_car ($3)); int d = gh_scm2int (ly_cdr ($3));
 891                 Music *mp = $4;
 892         $$= MY_MAKE_MUSIC("TimeScaledMusic");
 893                 $$->set_spot (THIS->pop_spot ());
 894
 895
 896                 $$->set_mus_property ("element", mp->self_scm ());
 897                 scm_gc_unprotect_object (mp->self_scm ());
 898                 $$->set_mus_property ("numerator", gh_int2scm (n));
 899                 $$->set_mus_property ("denominator", gh_int2scm (d));
 900                 $$->compress (Moment (Rational (n,d)));
 901
 902         }
 903         | Repeated_music                { $$ = $1; }
 904         | Simultaneous_music            { $$ = $1; }
 905         | Sequential_music              { $$ = $1; }
 906         | TRANSPOSE pitch Music {
 907                 $$ = MY_MAKE_MUSIC("TransposedMusic");
 908                 Music *p = $3;
 909                 Pitch pit = *unsmob_pitch ($2);
 910
 911                 p->transpose (pit);
 912                 $$->set_mus_property ("element", p->self_scm ());
 913                 scm_gc_unprotect_object (p->self_scm ());
 914         }
 915         | TRANSPOSE steno_tonic_pitch Music {
 916                 $$ = MY_MAKE_MUSIC("TransposedMusic");
 917                 Music *p = $3;
 918                 Pitch pit = *unsmob_pitch ($2);
 919
 920                 p->transpose (pit);
 921                 $$->set_mus_property ("element", p->self_scm ());
 922                 scm_gc_unprotect_object (p->self_scm ());
 923
 924         }
 925         | APPLY embedded_scm Music  {
 926                 SCM ret = gh_call1 ($2, $3->self_scm ());
 927                 Music *m = unsmob_music (ret);
 928                 if (!m) {
 929                         THIS->parser_error ("\\apply must return a Music");
 930                         m = MY_MAKE_MUSIC("Music");
 931                         }
 932                 $$ = m;
 933         }
 934         | NOTES
 935                 { THIS->lexer_->push_note_state (); }
 936         Music
 937                 { $$ = $3;
 938                   THIS->lexer_->pop_state ();
 939                 }
 940         | FIGURES
 941                 { THIS->lexer_->push_figuredbass_state (); }
 942         Music
 943                 {
 944                   Music * chm = MY_MAKE_MUSIC("UntransposableMusic");
 945                   chm->set_mus_property ("element", $3->self_scm ());
 946                   $$ = chm;
 947                   scm_gc_unprotect_object ($3->self_scm());
 948
 949                   THIS->lexer_->pop_state ();
 950         }
 951         | CHORDS
 952                 { THIS->lexer_->push_chord_state (); }
 953         Music
 954                 {
 955                   Music * chm = MY_MAKE_MUSIC("UnrelativableMusic");
 956                   chm->set_mus_property ("element", $3->self_scm ());
 957                   scm_gc_unprotect_object ($3->self_scm());
 958                   $$ = chm;
 959
 960                   THIS->lexer_->pop_state ();
 961         }
 962         | LYRICS
 963                 { THIS->lexer_->push_lyric_state (); }
 964         Music
 965                 {
 966                   $$ = $3;
 967                   THIS->lexer_->pop_state ();
 968         }
 969         | relative_music        { $$ = $1; }
 970         | re_rhythmed_music     { $$ = $1; }
 971         | part_combined_music   { $$ = $1; }
 972         ;
 973
 974 relative_music:
 975         RELATIVE absolute_pitch Music {
 976                 Music * p = $3;
 977                 Pitch pit = *unsmob_pitch ($2);
 978                 $$ = MY_MAKE_MUSIC("RelativeOctaveMusic");
 979
 980                 $$->set_mus_property ("element", p->self_scm ());
 981                 scm_gc_unprotect_object (p->self_scm ());
 982
 983                 $$->set_mus_property ("last-pitch", p->to_relative_octave (pit).smobbed_copy ());
 984
 985         }
 986         ;
 987
 988 re_rhythmed_music:
 989         ADDLYRICS Music Music {
 990         Music*l =MY_MAKE_MUSIC("LyricCombineMusic");
 991           l->set_mus_property ("elements", gh_list ($2->self_scm (), $3->self_scm (), SCM_UNDEFINED));
 992           scm_gc_unprotect_object ($3->self_scm ());
 993           scm_gc_unprotect_object ($2->self_scm ());
 994           $$ = l;
 995         }
 996         ;
 997
 998 part_combined_music:
 999         PARTCOMBINE STRING Music Music {
1000         Music * p= MY_MAKE_MUSIC("PartCombineMusic");
1001                 p->set_mus_property ("what", $2);
1002                 p->set_mus_property ("elements", gh_list ($3->self_scm (),$4->self_scm (), SCM_UNDEFINED));
1003
1004                 scm_gc_unprotect_object ($3->self_scm ());
1005                 scm_gc_unprotect_object ($4->self_scm ());
1006
1007                 $$ = p;
1008         }
1009         ;
1010
1011 translator_change:
1012         TRANSLATOR STRING '=' STRING  {
1013                 Music*t= MY_MAKE_MUSIC("TranslatorChange");
1014                 t-> set_mus_property ("change-to-type", $2);
1015                 t-> set_mus_property ("change-to-id", $4);
1016
1017                 $$ = t;
1018                 $$->set_spot (THIS->here_input ());
1019         }
1020         ;
1021
1022 property_def:
1023         simple_property_def
1024         | ONCE simple_property_def {
1025                 $$ = $2;
1026                 SCM e = $2->get_mus_property ("element");
1027                 unsmob_music (e)->set_mus_property ("once", SCM_BOOL_T);
1028         }
1029         ;
1030
1031 simple_property_def:
1032         PROPERTY STRING '.' STRING '='  scalar {
1033                 Music *t = set_property_music (scm_string_to_symbol ($4), $6);
1034                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1035
1036                 csm->set_mus_property ("element", t->self_scm ());
1037                 scm_gc_unprotect_object (t->self_scm ());
1038
1039                 $$ = csm;
1040                 $$->set_spot (THIS->here_input ());
1041
1042                 csm-> set_mus_property ("context-type", $2);
1043         }
1044         | PROPERTY STRING '.' STRING UNSET {
1045
1046                 Music *t = MY_MAKE_MUSIC("PropertyUnset");
1047                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1048
1049                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1050                 csm->set_mus_property ("element", t->self_scm ());
1051                 scm_gc_unprotect_object (t->self_scm ());
1052
1053                 $$ = csm;
1054                 $$->set_spot (THIS->here_input ());
1055
1056                 csm-> set_mus_property ("context-type", $2);
1057         }
1058         | PROPERTY STRING '.' STRING SET embedded_scm '=' embedded_scm {
1059                 bool autobeam
1060                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1061                 bool itc = internal_type_checking_global_b;
1062                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1063                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1064                 t->set_mus_property ("pop-first", SCM_BOOL_T);
1065                 if (autobeam)
1066                         internal_type_checking_global_b = false;
1067                 t->set_mus_property ("grob-property", $6);
1068                 if (autobeam)
1069                         internal_type_checking_global_b = itc;
1070                 t->set_mus_property ("grob-value", $8);
1071
1072                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1073                 csm->set_mus_property ("element", t->self_scm ());
1074                 scm_gc_unprotect_object (t->self_scm ());
1075                 $$ = csm;
1076                 $$->set_spot (THIS->here_input ());
1077
1078                 csm-> set_mus_property ("context-type", $2);
1079         }
1080         | PROPERTY STRING '.' STRING OVERRIDE
1081                 embedded_scm '=' embedded_scm
1082         {
1083                 /*
1084                         UGH UGH UGH UGH.
1085                 */
1086                 bool autobeam
1087                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1088                 bool itc = internal_type_checking_global_b;
1089
1090                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1091                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1092                 if (autobeam)
1093                         internal_type_checking_global_b = false;
1094                 t->set_mus_property ("grob-property", $6);
1095                 t->set_mus_property ("grob-value", $8);
1096                 if (autobeam)
1097                         internal_type_checking_global_b = itc;
1098
1099                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1100                 csm->set_mus_property ("element", t->self_scm ());
1101                 scm_gc_unprotect_object (t->self_scm ());
1102
1103                 $$ = csm;
1104                 $$->set_spot (THIS->here_input ());
1105
1106                 csm-> set_mus_property ("context-type", $2);
1107
1108         }
1109         | PROPERTY STRING '.' STRING REVERT embedded_scm {
1110                 Music *t = MY_MAKE_MUSIC("RevertProperty");
1111                 bool autobeam
1112                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1113                 bool itc = internal_type_checking_global_b;
1114
1115                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1116                 if (autobeam)
1117                         internal_type_checking_global_b = false;
1118                 t->set_mus_property ("grob-property", $6);
1119                 if (autobeam)
1120                         internal_type_checking_global_b = itc;
1121
1122                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1123                 csm->set_mus_property ("element", t->self_scm ());
1124                 scm_gc_unprotect_object (t->self_scm ());
1125
1126                 $$ = csm;
1127                 $$->set_spot (THIS->here_input ());
1128
1129                 csm-> set_mus_property ("context-type", $2);
1130         }
1131         ;
1132
1133
1134 scalar:
1135         string          { $$ = $1; }
1136         | bare_int      { $$ = gh_int2scm ($1); }
1137         | embedded_scm  { $$ = $1; }
1138         ;
1139
1140
1141 event_chord:
1142         pre_events {
1143                 THIS->push_spot ();
1144         } /*cont */ simple_element post_events  {
1145                 Music_sequence *l = dynamic_cast<Music_sequence*> ($3);
1146
1147                 $1->concat (*$4);
1148                 for (int i=0; i < $1->size (); i++) {
1149                   Music * m = $1->elem (i);
1150                   l->append_music (m);
1151                 }
1152                 $$ = $3;
1153
1154                 delete $1;
1155                 delete $4;
1156         }
1157         | command_element
1158         ;
1159
1160 command_element:
1161         command_req {
1162                 $$ = MY_MAKE_MUSIC("EventChord");
1163                 $$->set_mus_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1164           scm_gc_unprotect_object ($1->self_scm());
1165
1166                 $$-> set_spot (THIS->here_input ());
1167                 $1-> set_spot (THIS->here_input ());
1168         }
1169         | E_LEFTSQUARE {
1170                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1171                 l->set_mus_property ("span-direction", gh_int2scm (START));
1172                 l->set_spot (THIS->here_input ());
1173
1174                 $$ = MY_MAKE_MUSIC("EventChord");
1175                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1176           scm_gc_unprotect_object (l->self_scm());
1177                 $$->set_spot (THIS->here_input ());
1178         }
1179         | E_RIGHTSQUARE {
1180                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1181                 l->set_mus_property ("span-direction", gh_int2scm (STOP));
1182                 l->set_spot (THIS->here_input ());
1183
1184                 $$ = MY_MAKE_MUSIC("EventChord");
1185                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1186                 $$->set_spot (THIS->here_input ());
1187           scm_gc_unprotect_object (l->self_scm());
1188
1189         }
1190         | E_BACKSLASH {
1191                 $$ = MY_MAKE_MUSIC("VoiceSeparator");
1192                 $$->set_spot (THIS->here_input ());
1193         }
1194         | '|'      {
1195
1196                 $$ = MY_MAKE_MUSIC("BarCheck");
1197                 $$->set_spot (THIS->here_input ());
1198         }
1199         | BAR STRING                    {
1200                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1201
1202                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1203                 csm->set_mus_property ("element", t->self_scm ());
1204                 scm_gc_unprotect_object (t->self_scm ());
1205
1206                 $$ = csm;
1207                 $$->set_spot (THIS->here_input ());
1208
1209                 csm->set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1210         }
1211         | PARTIAL duration_length       {
1212                 Moment m = - unsmob_duration ($2)->get_length ();
1213                 Music * p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1214
1215                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1216                 sp->set_mus_property ("element", p->self_scm ());
1217                 scm_gc_unprotect_object (p->self_scm ());
1218
1219                 $$ =sp ;
1220                 sp-> set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1221         }
1222         | CLEF STRING  {
1223                 static SCM proc ;
1224                 if (!proc)
1225                         proc = scm_c_eval_string ("make-clef-set");
1226
1227                 SCM result = scm_call_1 (proc, $2);
1228                 scm_gc_protect_object (result);
1229                 $$ = unsmob_music (result);
1230         }
1231         | TIME_T fraction  {
1232                 Music * p1 = set_property_music (ly_symbol2scm ( "timeSignatureFraction"), $2);
1233
1234                 int l = gh_scm2int (ly_car ($2));
1235                 int o = gh_scm2int (ly_cdr ($2));
1236
1237                 Moment one_beat = Moment (1)/Moment (o);
1238                 Moment len = Moment (l) * one_beat;
1239
1240
1241                 Music *p2 = set_property_music (ly_symbol2scm ("measureLength"), len.smobbed_copy ());
1242                 Music *p3 = set_property_music (ly_symbol2scm ("beatLength"), one_beat.smobbed_copy ());
1243
1244                 SCM list = scm_list_n (p1->self_scm (), p2->self_scm (), p3->self_scm(), SCM_UNDEFINED);
1245                 Music *seq = MY_MAKE_MUSIC("SequentialMusic");
1246                 seq->set_mus_property ("elements", list);
1247
1248
1249                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1250                 sp->set_mus_property ("element", seq->self_scm ());
1251
1252                 scm_gc_unprotect_object (p3->self_scm ());
1253                 scm_gc_unprotect_object (p2->self_scm ());
1254                 scm_gc_unprotect_object (p1->self_scm ());
1255                 scm_gc_unprotect_object (seq->self_scm ());
1256
1257                 $$ = sp;
1258
1259                 sp-> set_mus_property ("context-type", scm_makfrom0str ( "Timing"));
1260         }
1261         ;
1262
1263 command_req:
1264         shorthand_command_req   { $$ = $1; }
1265         | verbose_command_req   { $$ = $1; }
1266         ;
1267
1268 shorthand_command_req:
1269         extender_req {
1270                 $$ = $1;
1271         }
1272         | hyphen_req {
1273                 $$ = $1;
1274         }
1275         | '~'   {
1276                 $$ = MY_MAKE_MUSIC("TieEvent");
1277         }
1278         | '['           {
1279                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1280                 b->set_mus_property ("span-direction", gh_int2scm (START))
1281 ;
1282                 $$ =b;
1283
1284
1285                 THIS->last_beam_start_ = b->self_scm ();
1286         }
1287         | ']'           {
1288                 Music *b= MY_MAKE_MUSIC("BeamEvent");
1289                 b->set_mus_property ("span-direction", gh_int2scm (STOP));
1290                 $$ = b;
1291         }
1292         | BREATHE {
1293                 $$ = MY_MAKE_MUSIC("BreathingSignEvent");
1294         }
1295         | E_TILDE {
1296                 $$ = MY_MAKE_MUSIC("PorrectusEvent");
1297         }
1298         ;
1299
1300 verbose_command_req:
1301         COMMANDSPANREQUEST bare_int STRING {
1302                 Music *sp = make_span_req ($3);
1303                 sp->set_mus_property ("span-direction", gh_int2scm (Direction ($2)));
1304                 sp->set_spot (THIS->here_input ());
1305                 $$ = sp;
1306         }
1307         | MARK DEFAULT  {
1308                 Music * m = MY_MAKE_MUSIC("MarkEvent");
1309                 $$ = m;
1310         }
1311         | MARK scalar {
1312                 Music *m = MY_MAKE_MUSIC("MarkEvent");
1313                 m->set_mus_property ("label", $2);
1314                 $$ = m;
1315         }
1316         | PENALTY SCM_T         {
1317                 Music * b = MY_MAKE_MUSIC("BreakEvent");
1318                 SCM s = $2;
1319                 if (!gh_number_p (s))
1320                         s = gh_int2scm (0);
1321
1322                 b->set_mus_property ("penalty", s);
1323                 b->set_spot (THIS->here_input ());
1324                 $$ = b;
1325         }
1326         | SKIP duration_length {
1327                 Music * skip = MY_MAKE_MUSIC("SkipEvent");
1328                 skip->set_mus_property ("duration", $2);
1329
1330                 $$ = skip;
1331         }
1332         | tempo_event {
1333                 $$ = $1;
1334         }
1335         | KEY DEFAULT {
1336                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1337                 $$ = key;
1338         }
1339         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1340                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1341
1342                 key->set_mus_property ("pitch-alist", $3);
1343                 ((Music*)key)->transpose (* unsmob_pitch ($2));
1344                 $$ = key;
1345         }
1346         ;
1347
1348 post_events:
1349         {
1350                 $$ = new Link_array<Music>;
1351         }
1352         | post_events post_event {
1353                 $2->set_spot (THIS->here_input ());
1354                 $$->push ($2);
1355         }
1356         ;
1357
1358 post_event:
1359         verbose_event
1360         | event_with_dir
1361         | close_event
1362         | string_event
1363         ;
1364
1365
1366 string_event:
1367         E_UNSIGNED {
1368                 Music * s = MY_MAKE_MUSIC("StringNumberEvent");
1369                 s->set_mus_property ("string-number",  gh_int2scm($1));
1370                 s->set_spot (THIS->here_input ());
1371                 $$ = s;
1372         }
1373         ;
1374
1375
1376 event_that_take_dir:
1377         gen_text_def
1378         | verbose_event
1379         | script_abbreviation {
1380                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1381                 Music *a = MY_MAKE_MUSIC("ArticulationEvent");
1382                 if (gh_string_p (s))
1383                         a->set_mus_property ("articulation-type", s);
1384                 else THIS->parser_error (_ ("Expecting string as script definition"));
1385                 $$ = a;
1386         }
1387         ;
1388
1389 event_with_dir:
1390         script_dir event_that_take_dir  {
1391                 $2->set_mus_property ("direction", gh_int2scm ($1));
1392                 $$ = $2;
1393         }
1394         ;
1395
1396 verbose_event:
1397         EVENT_IDENTIFIER        {
1398                 $$ = unsmob_music ($1)->clone ();
1399                 $$->set_spot (THIS->here_input ());
1400         }
1401         | SPANREQUEST bare_int STRING {
1402
1403                 Music * sp = make_span_req ($3);
1404                 sp->set_mus_property ("span-direction", gh_int2scm ( $2));
1405                 sp->set_spot (THIS->here_input ());
1406                 $$ = sp;
1407         }
1408         | tremolo_type  {
1409                Music * a = MY_MAKE_MUSIC("TremoloEvent");
1410                a->set_spot (THIS->here_input ());
1411                a->set_mus_property ("tremolo-type", gh_int2scm ($1));
1412                $$ = a;
1413         }
1414         | SCRIPT STRING         {
1415                 Music * a = MY_MAKE_MUSIC("ArticulationEvent");
1416                 a->set_mus_property ("articulation-type", $2);
1417                 a->set_spot (THIS->here_input ());
1418                 $$ = a;
1419         }
1420
1421         /*
1422                 duh, junk this syntax from the parser, if possible.
1423         */
1424         | ARPEGGIO {
1425                 Music *a = MY_MAKE_MUSIC("ArpeggioEvent");
1426                 a->set_spot (THIS->here_input ());
1427                 $$ = a;
1428         }
1429         | GLISSANDO {
1430                 Music *g = MY_MAKE_MUSIC("GlissandoEvent");
1431                 g->set_spot /* No pun intended */ (THIS->here_input ());
1432                 $$ = g;
1433         }
1434         ;
1435
1436 sup_quotes:
1437         '\'' {
1438                 $$ = 1;
1439         }
1440         | sup_quotes '\'' {
1441                 $$ ++;
1442         }
1443         ;
1444
1445 sub_quotes:
1446         ',' {
1447                 $$ = 1;
1448         }
1449         | sub_quotes ',' {
1450                 $$ ++ ;
1451         }
1452         ;
1453
1454 steno_pitch:
1455         NOTENAME_PITCH  {
1456                 $$ = $1;
1457         }
1458         | NOTENAME_PITCH sup_quotes     {
1459                 Pitch p = *unsmob_pitch ($1);
1460                 p.octave_ +=  $2;
1461                 $$ = p.smobbed_copy ();
1462         }
1463         | NOTENAME_PITCH sub_quotes      {
1464                 Pitch p =* unsmob_pitch ($1);
1465
1466                 p.octave_ +=  -$2;
1467                 $$ = p.smobbed_copy ();
1468
1469         }
1470         ;
1471
1472 /*
1473 ugh. duplication
1474 */
1475
1476 steno_tonic_pitch:
1477         TONICNAME_PITCH {
1478                 $$ = $1;
1479         }
1480         | TONICNAME_PITCH sup_quotes    {
1481                 Pitch p = *unsmob_pitch ($1);
1482                 p.octave_ +=  $2;
1483                 $$ = p.smobbed_copy ();
1484         }
1485         | TONICNAME_PITCH sub_quotes     {
1486                 Pitch p =* unsmob_pitch ($1);
1487
1488                 p.octave_ +=  -$2;
1489                 $$ = p.smobbed_copy ();
1490
1491         }
1492         ;
1493
1494 pitch:
1495         steno_pitch {
1496                 $$ = $1;
1497         }
1498         | explicit_pitch {
1499                 $$ = $1;
1500         }
1501         ;
1502
1503 explicit_pitch:
1504         PITCH embedded_scm {
1505                 $$ = $2;
1506                 if (!unsmob_pitch ($2)) {
1507                         THIS->parser_error (_f ("Expecting musical-pitch value", 3));
1508                          $$ = Pitch ().smobbed_copy ();
1509                 }
1510         }
1511         ;
1512
1513 verbose_duration:
1514         DURATION embedded_scm   {
1515                 $$ = $2;
1516                 if (!unsmob_duration ($2))
1517                 {
1518                         THIS->parser_error (_ ("Must have duration object"));
1519                         $$ = Duration ().smobbed_copy ();
1520                 }
1521         }
1522         ;
1523
1524 extender_req:
1525         EXTENDER {
1526                 if (!THIS->lexer_->lyric_state_b ())
1527                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1528                 $$ = MY_MAKE_MUSIC("ExtenderEvent");
1529         }
1530         ;
1531
1532 hyphen_req:
1533         HYPHEN {
1534                 if (!THIS->lexer_->lyric_state_b ())
1535                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1536                 $$ = MY_MAKE_MUSIC("HyphenEvent");
1537         }
1538         ;
1539
1540 close_event:
1541         close_event_parens {
1542                 $$ = $1;
1543                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (START))
1544 ;
1545         }
1546         ;
1547
1548 close_event_parens:
1549         '('     {
1550                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1551                 $$ = s;
1552                 s->set_spot (THIS->here_input());
1553         }
1554         | E_OPEN        {
1555                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1556                 $$ = s;
1557                 s->set_spot (THIS->here_input());
1558         }
1559         | E_SMALLER {
1560                 Music *s =MY_MAKE_MUSIC("CrescendoEvent");
1561                 $$ = s;
1562                 s->set_spot (THIS->here_input());
1563         }
1564         | E_BIGGER {
1565                 Music *s =MY_MAKE_MUSIC("DecrescendoEvent");
1566                 $$ = s;
1567                 s->set_spot (THIS->here_input());
1568         }
1569         ;
1570
1571
1572 open_event:
1573         open_event_parens {
1574                 $$ = $1;
1575                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (STOP))
1576 ;
1577         }
1578         ;
1579
1580 open_event_parens:
1581         E_EXCLAMATION   {
1582                 Music *s =  MY_MAKE_MUSIC("CrescendoEvent");
1583                 s->set_spot (THIS->here_input());
1584
1585                 $$ = s;
1586         }
1587         | ')'   {
1588                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1589                 $$ = s;
1590                 s->set_spot (THIS->here_input());
1591
1592         }
1593         | E_CLOSE       {
1594                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1595                 $$ = s;
1596                 s->set_mus_property ("span-type", scm_makfrom0str ( "phrasing-slur"));
1597                 s->set_spot (THIS->here_input());
1598         }
1599         ;
1600
1601 gen_text_def:
1602         embedded_scm {
1603                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1604                 t->set_mus_property ("text", $1);
1605                 t->set_spot (THIS->here_input ());
1606                 $$ = t;
1607         }
1608         | string {
1609                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1610                 t->set_mus_property ("text", $1);
1611                 t->set_spot (THIS->here_input ());
1612                 $$ = t;
1613         }
1614         | DIGIT {
1615                 String ds = to_string ($1);
1616                 Music * t = MY_MAKE_MUSIC("TextScriptEvent");
1617                 SCM finger = ly_symbol2scm ("finger");
1618                 t->set_mus_property ("text",  scm_makfrom0str (ds.to_str0 ()));
1619                 t->set_mus_property ("text-type" , finger);
1620                 t->set_spot (THIS->here_input ());
1621                 $$ = t;
1622         }
1623         ;
1624
1625 script_abbreviation:
1626         '^'             {
1627                 $$ = scm_makfrom0str ("Hat");
1628         }
1629         | '+'           {
1630                 $$ = scm_makfrom0str ("Plus");
1631         }
1632         | '-'           {
1633                 $$ = scm_makfrom0str ("Dash");
1634         }
1635         | '|'           {
1636                 $$ = scm_makfrom0str ("Bar");
1637         }
1638         | '>'           {
1639                 $$ = scm_makfrom0str ("Larger");
1640         }
1641         | '.'           {
1642                 $$ = scm_makfrom0str ("Dot");
1643         }
1644         | '_' {
1645                 $$ = scm_makfrom0str ("Underscore");
1646         }
1647         ;
1648
1649 script_dir:
1650         '_'     { $$ = DOWN; }
1651         | '^'   { $$ = UP; }
1652         | '-'   { $$ = CENTER; }
1653         ;
1654
1655 pre_events:
1656         {
1657                 $$ = new Link_array<Music>;
1658         }
1659         | pre_events open_event {
1660                 $$->push ($2);
1661         }
1662         ;
1663
1664 absolute_pitch:
1665         steno_pitch     {
1666                 $$ = $1;
1667         }
1668         ;
1669
1670 duration_length:
1671         multiplied_duration {
1672                 $$ = $1;
1673         }
1674         | verbose_duration {
1675                 $$ = $1;
1676         }
1677         ;
1678
1679 optional_notemode_duration:
1680         {
1681                 Duration dd = THIS->default_duration_;
1682                 $$ = dd.smobbed_copy ();
1683
1684                 THIS->beam_check ($$);
1685         }
1686         | multiplied_duration   {
1687                 $$ = $1;
1688                 THIS->default_duration_ = *unsmob_duration ($$);
1689
1690                 THIS->beam_check ($$);
1691         }
1692         | verbose_duration {
1693                 $$ = $1;
1694                 THIS->default_duration_ = *unsmob_duration ($$);
1695         }
1696         ;
1697
1698 steno_duration:
1699         bare_unsigned dots              {
1700                 int l = 0;
1701                 if (!is_duration_b ($1))
1702                         THIS->parser_error (_f ("not a duration: %d", $1));
1703                 else
1704                         l =  intlog2 ($1);
1705
1706                 $$ = Duration (l, $2).smobbed_copy ();
1707         }
1708         | DURATION_IDENTIFIER dots      {
1709                 Duration *d =unsmob_duration ($1);
1710                 Duration k (d->duration_log (),d->dot_count () + $2);
1711                 $$ = k.smobbed_copy ();
1712         }
1713         ;
1714
1715
1716
1717
1718 multiplied_duration:
1719         steno_duration {
1720                 $$ = $1;
1721         }
1722         | multiplied_duration '*' bare_unsigned {
1723                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1724         }
1725         | multiplied_duration '*' FRACTION {
1726                 Rational  m (gh_scm2int (ly_car ($3)), gh_scm2int (ly_cdr ($3)));
1727
1728                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1729         }
1730         ;
1731
1732 fraction:
1733         FRACTION { $$ = $1; }
1734         | UNSIGNED '/' UNSIGNED {
1735                 $$ = scm_cons (gh_int2scm ($1), gh_int2scm ($3));
1736         }
1737         ;
1738
1739 dots:
1740         /* empty */     {
1741                 $$ = 0;
1742         }
1743         | dots '.' {
1744                 $$ ++;
1745         }
1746         ;
1747
1748
1749 tremolo_type:
1750         ':'     {
1751                 $$ =0;
1752         }
1753         | ':' bare_unsigned {
1754                 if (!is_duration_b ($2))
1755                         THIS->parser_error (_f ("not a duration: %d", $2));
1756                 $$ = $2;
1757         }
1758         ;
1759
1760
1761 bass_number:
1762         DIGIT
1763         | UNSIGNED
1764         ;
1765
1766 bass_mod:
1767         '-'     { $$ = -1; }
1768         | '+'   { $$ = 1; }
1769         | '!'   { $$ = 0; }
1770         ;
1771
1772 bass_figure:
1773         FIGURE_SPACE {
1774                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1775                 $$ = bfr->self_scm();
1776                 scm_gc_unprotect_object ($$);
1777         }
1778         | bass_number  {
1779                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1780                 $$ = bfr->self_scm();
1781
1782                 bfr->set_mus_property ("figure", gh_int2scm ($1));
1783
1784                 scm_gc_unprotect_object ($$);
1785         }
1786         | bass_figure bass_mod {
1787                 Music *m = unsmob_music ($1);
1788                 if ($2) {
1789                         SCM salter =m->get_mus_property ("alteration");
1790                         int alter = gh_number_p ( salter) ? gh_scm2int (salter) : 0;
1791                         m->set_mus_property ("alteration",
1792                                 gh_int2scm (alter + $2));
1793                 } else {
1794                         m->set_mus_property ("alteration", gh_int2scm (0));
1795                 }
1796         }
1797         ;
1798
1799 br_bass_figure:
1800         '[' bass_figure {
1801                 $$ = $2;
1802                 unsmob_music ($$)->set_mus_property ("bracket-start", SCM_BOOL_T);
1803         }
1804         | bass_figure   {
1805                 $$ = $1;
1806         }
1807         | br_bass_figure ']' {
1808                 $$ = $1;
1809                 unsmob_music ($1)->set_mus_property ("bracket-stop", SCM_BOOL_T);
1810         }
1811         ;
1812
1813 figure_list:
1814         /**/            {
1815                 $$ = SCM_EOL;
1816         }
1817         | figure_list br_bass_figure {
1818                 $$ = scm_cons ($2, $1);
1819         }
1820         ;
1821
1822 figure_spec:
1823         FIGURE_OPEN figure_list FIGURE_CLOSE {
1824                 Music * m = MY_MAKE_MUSIC("EventChord");
1825                 $2 = scm_reverse_x ($2, SCM_EOL);
1826                 m->set_mus_property ("elements",  $2);
1827                 $$ = m->self_scm ();
1828         }
1829         ;
1830
1831
1832 optional_rest:
1833         /**/   { $$ = 0; }
1834         | REST { $$ = 1; }
1835         ;
1836
1837 simple_element:
1838         pitch exclamations questions optional_notemode_duration optional_rest {
1839
1840                 Input i = THIS->pop_spot ();
1841                 if (!THIS->lexer_->note_state_b ())
1842                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
1843
1844                 Music *n = 0;
1845                 if ($5)
1846                         n =  MY_MAKE_MUSIC("RestEvent");
1847                 else
1848                         n =  MY_MAKE_MUSIC("NoteEvent");
1849
1850                 n->set_mus_property ("pitch", $1);
1851                 n->set_mus_property ("duration", $4);
1852
1853
1854                 if ($3 % 2)
1855                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1856                 if ($2 % 2 || $3 % 2)
1857                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1858
1859                 Music *v = MY_MAKE_MUSIC("EventChord");
1860                 v->set_mus_property ("elements", scm_list_n (n->self_scm (), SCM_UNDEFINED));
1861                 scm_gc_unprotect_object (n->self_scm());
1862
1863                 v->set_spot (i);
1864                 n->set_spot (i);
1865                 $$ = v;
1866         }
1867         | figure_spec optional_notemode_duration {
1868                 Music * m = unsmob_music ($1);
1869                 Input i = THIS->pop_spot ();
1870                 m->set_spot (i);
1871                 for (SCM s = m->get_mus_property ("elements"); gh_pair_p (s); s = ly_cdr (s))
1872                         {
1873                                 unsmob_music (ly_car (s))->set_mus_property ("duration", $2);
1874                         }
1875                 $$ = m;
1876         }
1877         | RESTNAME optional_notemode_duration           {
1878
1879                 Input i = THIS->pop_spot ();
1880                 SCM e = SCM_UNDEFINED;
1881                 if (ly_scm2string ($1) =="s") {
1882                         /* Space */
1883                         Music * skip = MY_MAKE_MUSIC("SkipEvent");
1884                         skip->set_mus_property ("duration" ,$2);
1885                         skip->set_spot (i);
1886                         e = skip->self_scm ();
1887                   }
1888                   else {
1889                         Music * rest_req = MY_MAKE_MUSIC("RestEvent");
1890                         rest_req->set_mus_property ("duration", $2);
1891                         rest_req->set_spot (i);
1892                         e = rest_req->self_scm ();
1893                     }
1894                 Music * velt = MY_MAKE_MUSIC("EventChord");
1895                 velt-> set_mus_property ("elements", scm_list_n (e,SCM_UNDEFINED));
1896                 velt->set_spot (i);
1897
1898                 $$ = velt;
1899         }
1900         | MULTI_MEASURE_REST optional_notemode_duration         {
1901                 THIS->pop_spot ();
1902
1903                 Music * sk = MY_MAKE_MUSIC("SkipEvent");
1904                 sk->set_mus_property ("duration", $2);
1905                 Music *sp1 = MY_MAKE_MUSIC("MultiMeasureRestEvent");
1906                 Music *sp2 = MY_MAKE_MUSIC("MultiMeasureRestEvent");
1907                 sp1-> set_mus_property ("span-direction", gh_int2scm (START))
1908 ;
1909                 sp2-> set_mus_property ("span-direction", gh_int2scm (STOP))
1910 ;
1911                 Music *rqc1 = MY_MAKE_MUSIC("EventChord");
1912                 rqc1->set_mus_property ("elements", scm_list_n (sp1->self_scm (), SCM_UNDEFINED));
1913                 Music *rqc2 = MY_MAKE_MUSIC("EventChord");
1914                 rqc2->set_mus_property ("elements", scm_list_n (sk->self_scm (), SCM_UNDEFINED));;
1915                 Music *rqc3 = MY_MAKE_MUSIC("EventChord");
1916                 rqc3->set_mus_property ("elements", scm_list_n (sp2->self_scm (), SCM_UNDEFINED));;
1917
1918                 SCM ms = scm_list_n (rqc1->self_scm (), rqc2->self_scm (), rqc3->self_scm (), SCM_UNDEFINED);
1919
1920                 $$ = MY_MAKE_MUSIC("SequentialMusic");
1921                 $$->set_mus_property ("elements", ms);
1922         }
1923         | STRING optional_notemode_duration     {
1924                 Input i = THIS->pop_spot ();
1925
1926                 Music * lreq = MY_MAKE_MUSIC("LyricEvent");
1927                 lreq->set_mus_property ("text", $1);
1928                 lreq->set_mus_property ("duration",$2);
1929                 lreq->set_spot (i);
1930                 Music * velt = MY_MAKE_MUSIC("EventChord");
1931                 velt->set_mus_property ("elements", scm_list_n (lreq->self_scm (), SCM_UNDEFINED));
1932
1933                 $$= velt;
1934         }
1935         | chord {
1936                 THIS->pop_spot ();
1937
1938                 if (!THIS->lexer_->chord_state_b ())
1939                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
1940                 $$ = $1;
1941         }
1942         ;
1943
1944
1945 chord:
1946         steno_tonic_pitch optional_notemode_duration chord_additions chord_subtractions chord_inversion chord_bass {
1947                 $$ = Chord::get_chord ($1, $3, $4, $5, $6, $2);
1948                 $$->set_spot (THIS->here_input ());
1949         };
1950
1951 chord_additions:
1952         {
1953                 $$ = SCM_EOL;
1954         }
1955         | CHORD_COLON chord_notes {
1956                 $$ = $2;
1957         }
1958         ;
1959
1960 chord_notes:
1961         chord_step {
1962                 $$ = $1;
1963         }
1964         | chord_notes '.' chord_step {
1965                 $$ = gh_append2 ($$, $3);
1966         }
1967         ;
1968
1969 chord_subtractions:
1970         {
1971                 $$ = SCM_EOL;
1972         }
1973         | CHORD_CARET chord_notes {
1974                 $$ = $2;
1975         }
1976         ;
1977
1978
1979 chord_inversion:
1980         {
1981                 $$ = SCM_EOL;
1982         }
1983         | CHORD_SLASH steno_tonic_pitch {
1984                 $$ = $2;
1985         }
1986         ;
1987
1988 chord_bass:
1989         {
1990                 $$ = SCM_EOL;
1991         }
1992         | CHORD_BASS steno_tonic_pitch {
1993                 $$ = $2;
1994         }
1995         ;
1996
1997 chord_step:
1998         chord_note {
1999                 $$ = scm_cons ($1, SCM_EOL);
2000         }
2001         | CHORDMODIFIER_PITCH {
2002                 $$ = scm_cons (unsmob_pitch ($1)->smobbed_copy (), SCM_EOL);
2003         }
2004         | CHORDMODIFIER_PITCH chord_note { /* Ugh. */
2005                 $$ = scm_list_n (unsmob_pitch ($1)->smobbed_copy (),
2006                         $2, SCM_UNDEFINED);
2007         }
2008         ;
2009
2010 chord_note:
2011         bare_unsigned {
2012                  Pitch m;
2013                 m.notename_ = ($1 - 1) % 7;
2014                 m.octave_ = $1 > 7 ? 1 : 0;
2015                 m.alteration_ = 0;
2016
2017                 $$ = m.smobbed_copy ();
2018         }
2019         | bare_unsigned '+' {
2020                 Pitch m;
2021                 m.notename_ = ($1 - 1) % 7;
2022                 m.octave_ = $1 > 7 ? 1 : 0;
2023                 m.alteration_ = 1;
2024
2025
2026                 $$ = m.smobbed_copy ();
2027         }
2028         | bare_unsigned CHORD_MINUS {
2029                 Pitch m;
2030                 m.notename_ = ($1 - 1) % 7;
2031                 m.octave_ = $1 > 7 ? 1 : 0;
2032                 m.alteration_ = -1;
2033
2034                 $$ = m.smobbed_copy ();
2035         }
2036         ;
2037
2038 /*
2039         UTILITIES
2040  */
2041 number_expression:
2042         number_expression '+' number_term {
2043                 $$ = scm_sum ($1, $3);
2044         }
2045         | number_expression '-' number_term {
2046                 $$ = scm_difference ($1, $3);
2047         }
2048         | number_term
2049         ;
2050
2051 number_term:
2052         number_factor {
2053                 $$ = $1;
2054         }
2055         | number_factor '*' number_factor {
2056                 $$ = scm_product ($1, $3);
2057         }
2058         | number_factor '/' number_factor {
2059                 $$ = scm_divide ($1, $3);
2060         }
2061         ;
2062
2063 number_factor:
2064         '(' number_expression ')'       {
2065                 $$ = $2;
2066         }
2067         | '-'  number_factor { /* %prec UNARY_MINUS */
2068                 $$ = scm_difference ($2, SCM_UNDEFINED);
2069         }
2070         | bare_number
2071         ;
2072
2073
2074 bare_number:
2075         UNSIGNED        {
2076                 $$ = gh_int2scm ($1);
2077         }
2078         | REAL          {
2079                 $$ = $1;
2080         }
2081         | NUMBER_IDENTIFIER             {
2082                 $$ = $1;
2083         }
2084         | REAL CM_T     {
2085                 $$ = gh_double2scm (gh_scm2double ($1) CM );
2086         }
2087         | REAL PT_T     {
2088                 $$ = gh_double2scm (gh_scm2double ($1) PT);
2089         }
2090         | REAL IN_T     {
2091                 $$ = gh_double2scm (gh_scm2double ($1) INCH);
2092         }
2093         | REAL MM_T     {
2094                 $$ = gh_double2scm (gh_scm2double ($1) MM);
2095         }
2096         | REAL CHAR_T   {
2097                 $$ = gh_double2scm (gh_scm2double ($1) CHAR);
2098         }
2099         ;
2100
2101
2102 bare_unsigned:
2103         UNSIGNED {
2104                         $$ = $1;
2105         }
2106         | DIGIT {
2107                 $$ = $1;
2108         }
2109         ;
2110
2111 bare_int:
2112         bare_number {
2113                 if (scm_integer_p ($1) == SCM_BOOL_T)
2114                 {
2115                         int k = gh_scm2int ($1);
2116                         $$ = k;
2117                 } else
2118                 {
2119                         THIS->parser_error (_ ("need integer number arg"));
2120                         $$ = 0;
2121                 }
2122         }
2123         | '-' bare_int {
2124                 $$ = -$2;
2125         }
2126         ;
2127
2128
2129 string:
2130         STRING          {
2131                 $$ = $1;
2132         }
2133         | STRING_IDENTIFIER     {
2134                 $$ = $1;
2135         }
2136         | string '+' string {
2137                 $$ = scm_string_append (scm_list_n ($1, $3, SCM_UNDEFINED));
2138         }
2139         ;
2140
2141
2142 exclamations:
2143                 { $$ = 0; }
2144         | exclamations '!'      { $$ ++; }
2145         ;
2146
2147 questions:
2148                 { $$ = 0; }
2149         | questions '?' { $$ ++; }
2150         ;
2151
2152
2153 %%
2154
2155 void
2156 My_lily_parser::set_yydebug (bool )
2157 {
2158 #if 0
2159         yydebug = b;
2160 #endif
2161 }
2162
2163 extern My_lily_parser * current_parser;
2164
2165 void
2166 My_lily_parser::do_yyparse ()
2167 {
2168
2169         current_parser = this;;
2170         yyparse ((void*)this);
2171 }
2172
2173
2174 /*
2175 Should make this optional?    It will also complain when you do
2176
2177         [s4]
2178
2179 which is entirely legitimate.
2180
2181 Or we can scrap it. Barchecks should detect wrong durations, and
2182 skipTypesetting speeds it up a lot.
2183 */
2184 void
2185 My_lily_parser::beam_check (SCM dur)
2186 {
2187   Duration *d = unsmob_duration (dur);
2188   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2189     {
2190       Music * m = unsmob_music (last_beam_start_);
2191       m->origin ()->warning (_("Suspect duration found following this beam"));
2192     }
2193   last_beam_start_ = SCM_EOL;
2194 }