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--2003 Han-Wen Nienhuys <hanwen@cs.uu.nl>
   9            Jan Nieuwenhuizen <janneke@gnu.org>
  10 */
  11
  12 /*
  13   Two shift/reduce problems:
  14
  15 1.      foo = bar.
  16
  17         "bar" -> String -> Lyric -> Music -> music-assignment
  18
  19         "bar" -> String -> string-assignment
  20
  21
  22 2.  \repeat
  23         \repeat .. \alternative
  24
  25
  26     \repeat { \repeat .. \alternative }
  27
  28 or
  29
  30     \repeat { \repeat } \alternative
  31
  32 )
  33
  34 --hwn
  35
  36  */
  37
  38 /*
  39
  40 TODO:
  41
  42 * The rules for who is protecting what are very shady. Uniformise
  43   this.
  44
  45 * There are too many lexical modes?
  46
  47 */
  48
  49 #include <ctype.h>
  50 #include <stdlib.h>
  51
  52
  53
  54 #include "translator-def.hh"
  55 #include "lily-guile.hh"
  56 #include "misc.hh"
  57 #include "my-lily-lexer.hh"
  58 #include "paper-def.hh"
  59 #include "midi-def.hh"
  60 #include "main.hh"
  61 #include "file-path.hh"
  62 #include "warn.hh"
  63 #include "dimensions.hh"
  64 #include "my-lily-parser.hh"
  65 #include "score.hh"
  66 #include "input-file-results.hh"
  67 #include "input.hh"
  68 #include "lilypond-input-version.hh"
  69 #include "scm-hash.hh"
  70 #include "auto-change-iterator.hh"
  71 #include "ly-modules.hh"
  72 #include "music-sequence.hh"
  73 #include "input-smob.hh"
  74 #include "event.hh"
  75 #include "text-item.hh"
  76 #include "music-list.hh"
  77
  78
  79 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
  80
  81
  82
  83 #define YYERROR_VERBOSE 1
  84
  85 My_lily_parser* my_lily_parser;
  86 #define YYPARSE_PARAM my_lily_parser
  87 #define YYLEX_PARAM my_lily_parser
  88 #define THIS\
  89         ((My_lily_parser *) my_lily_parser)
  90
  91 #define yyerror THIS->parser_error
  92
  93
  94
  95
  96
  97 bool
  98 regular_identifier_b (SCM id)
  99 {
 100   String str = ly_scm2string (id);
 101   char const *s = str.to_str0 () ;
 102
 103   bool v = true;
 104   while (*s && v)
 105    {
 106         v = v && isalpha (*s);
 107         s++;
 108    }
 109   return v;
 110 }
 111
 112 SCM
 113 make_simple_markup (SCM a)
 114 {
 115         static SCM simple;
 116         if (!simple)
 117         simple = scm_c_eval_string ("simple-markup");
 118
 119         return scm_list_n (simple, a, SCM_UNDEFINED);
 120 }
 121
 122
 123 bool
 124 is_duration_b (int t)
 125 {
 126   return t && t == 1 << intlog2 (t);
 127 }
 128
 129 void
 130 set_music_properties (Music *p, SCM a)
 131 {
 132   for (SCM k = a; gh_pair_p (k); k = ly_cdr (k))
 133         {
 134         p->internal_set_mus_property (ly_caar (k), ly_cdar (k));
 135         }
 136 }
 137
 138 SCM
 139 make_chord_step (int step, int alter)
 140 {
 141         if (step == 7)
 142                 alter--;
 143
 144         /* ugh: fucks up above 13 */
 145         Pitch m(step > 7 ? 1 : 0,(step - 1) % 7, alter);
 146         return m.smobbed_copy ();
 147 }
 148
 149
 150 SCM
 151 make_chord (SCM pitch, SCM dur, SCM modification_list)
 152 {
 153         static SCM chord_ctor;
 154         if (!chord_ctor)
 155                 chord_ctor= scm_c_eval_string ("construct-chord");
 156         SCM ch=  scm_call_3 (chord_ctor, pitch, dur, modification_list);
 157         scm_gc_protect_object (ch);
 158         return ch;
 159 }
 160
 161 /*
 162   Todo: actually also use apply iso. call too ...
 163 */
 164 bool
 165 ly_input_procedure_p (SCM x)
 166 {
 167         return gh_procedure_p (x)
 168                 || (gh_pair_p (x) && gh_procedure_p (gh_car (x)));
 169 }
 170
 171 Music*
 172 set_property_music (SCM sym, SCM value)
 173 {
 174         Music * p = MY_MAKE_MUSIC("PropertySet");
 175         p->set_mus_property ("symbol", sym);
 176         p->set_mus_property ("value", value);
 177         return p;
 178 }
 179
 180 %}
 181
 182 /* We use SCMs to do strings, because it saves us the trouble of
 183 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 184 of the parse stack onto the heap. */
 185
 186
 187 %union {
 188         String * string;
 189     Music *music;
 190     Score *score;
 191     Music_output_def * outputdef;
 192     SCM scm;
 193     int i;
 194 }
 195 %{
 196
 197 int
 198 yylex (YYSTYPE *s,  void * v)
 199 {
 200         My_lily_parser   *pars = (My_lily_parser*) v;
 201         My_lily_lexer * lex = pars->lexer_;
 202
 203         lex->lexval = (void*) s;
 204         lex->prepare_for_next_token();
 205         return lex->yylex ();
 206 }
 207
 208
 209 %}
 210
 211 %pure_parser
 212
 213 /* tokens which are not keywords */
 214 %token AUTOCHANGE
 215 %token ALIAS
 216 %token APPLYCONTEXT
 217 %token APPLYOUTPUT
 218 %token APPLY
 219 %token ACCEPTS
 220 %token ALTERNATIVE
 221 %token BAR
 222 %token BREATHE
 223 %token CHORDMODIFIERS
 224 %token CHORDS
 225 %token CLEF
 226 %token CONSISTS
 227 %token DURATION
 228 %token SEQUENTIAL
 229 %token GROBDESCRIPTIONS
 230 %token SIMULTANEOUS
 231 %token CONSISTSEND
 232 %token DENIES
 233 %token DESCRIPTION
 234 %token EXTENDER
 235 %token FIGURES FIGURE_OPEN FIGURE_CLOSE
 236 %token FIGURE_BRACKET_CLOSE FIGURE_BRACKET_OPEN
 237 %token GRACE
 238 %token HEADER
 239 %token HYPHEN
 240 %token INVALID
 241 %token KEY
 242 %token LYRICS
 243 %token MARK
 244 %token MULTI_MEASURE_REST
 245 %token MIDI
 246 %token PITCH
 247 %token DEFAULT
 248 %token NAME
 249 %token PITCHNAMES
 250 %token NOTES
 251 %token ONCE
 252 %token PAPER
 253 %token PARTIAL
 254 %token PROPERTY
 255 %token OVERRIDE SET REVERT
 256 %token RELATIVE
 257 %token REMOVE
 258 %token REPEAT
 259 %token ADDLYRICS
 260 %token PARTCOMBINE
 261 %token SCM_T
 262 %token SCORE
 263 %token SKIP
 264 %token SPANREQUEST
 265 %token COMMANDSPANREQUEST
 266 %token TEMPO
 267 %token OUTPUTPROPERTY
 268 %token TIME_T
 269 %token TIMES
 270 %token TRANSLATOR
 271 %token TRANSPOSE
 272 %token TYPE
 273 %token UNSET
 274 %token CONTEXT
 275 %token REST
 276
 277 %token CHORD_OPEN
 278 %token CHORD_CLOSE
 279
 280
 281 /* escaped */
 282 %token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 283 %token E_LEFTSQUARE E_RIGHTSQUARE E_TILDE
 284 %token E_BACKSLASH
 285 %token <i> E_UNSIGNED
 286 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET  CHORD_SLASH
 287 %token FIGURE_SPACE
 288
 289 %type <i>       exclamations questions dots optional_rest
 290 %type <i>        bass_mod
 291 %type <scm>     bass_number br_bass_figure bass_figure figure_list figure_spec
 292 %token <i>      DIGIT
 293 %token <scm>    NOTENAME_PITCH
 294 %token <scm>    TONICNAME_PITCH
 295 %token <scm>    CHORDMODIFIER_PITCH
 296 %token <scm>    DURATION_IDENTIFIER
 297 %token <scm>    FRACTION
 298 %token <id>     IDENTIFIER
 299 %token <scm>    CHORDNAMES
 300
 301 %token <scm> CHORD_MODIFIER
 302
 303 %token <scm>    SCORE_IDENTIFIER
 304 %token <scm>    MUSIC_OUTPUT_DEF_IDENTIFIER
 305 %token <scm>    NUMBER_IDENTIFIER
 306 %token <scm>    EVENT_IDENTIFIER
 307 %token <scm>    MUSIC_IDENTIFIER TRANSLATOR_IDENTIFIER
 308 %token <scm>    STRING_IDENTIFIER SCM_IDENTIFIER
 309 %token <scm>    RESTNAME
 310 %token <scm>    STRING
 311 %token <scm>    SCM_T
 312 %token <i>      UNSIGNED
 313 %token <scm>   REAL
 314
 315 %token MARKUP
 316 %token <scm> MARKUP_HEAD_MARKUP0
 317 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 318 %token <scm> MARKUP_HEAD_SCM0
 319 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 320 %token <scm> MARKUP_HEAD_SCM0_SCM1
 321 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 322 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 323
 324 %token <scm> MARKUP_IDENTIFIER MARKUP_HEAD_LIST0
 325 %type <scm> markup markup_line markup_list  markup_list_body full_markup
 326
 327 %type <outputdef> output_def
 328 %type <scm>     lilypond_header lilypond_header_body
 329 %type <music>   open_event close_event
 330 %type <i>       sub_quotes sup_quotes
 331 %type <music>   simple_element  event_chord command_element Simple_music  Composite_music
 332 %type <music>   Repeated_music
 333 %type <scm>     Alternative_music
 334 %type <i>       tremolo_type
 335 %type <i>       bare_int  bare_unsigned
 336 %type <i>       script_dir
 337 %type <scm>     identifier_init
 338
 339 %type <music> note_chord_element chord_body chord_body_element
 340 %type <scm>  chord_body_elements
 341 %type <scm> steno_duration optional_notemode_duration multiplied_duration
 342 %type <scm>  verbose_duration
 343
 344 %type <scm>   post_events
 345 %type <music> gen_text_def direction_less_event direction_reqd_event
 346 %type <scm>   steno_pitch pitch absolute_pitch pitch_also_in_chords
 347 %type <scm>   explicit_pitch steno_tonic_pitch
 348
 349 /* %type <scm>  chord_additions chord_subtractions chord_notes chord_step */
 350 /* %type <music>        chord */
 351 /* %type <scm>  chord_note chord_inversion chord_bass */
 352 %type <scm>     duration_length fraction
 353
 354 %type <scm> new_chord step_number chord_items chord_item chord_separator step_numbers
 355
 356 %type <scm>  embedded_scm scalar
 357 %type <music>   Music Sequential_music Simultaneous_music
 358 %type <music>   relative_music re_rhythmed_music part_combined_music
 359 %type <music>   property_def translator_change  simple_property_def
 360 %type <scm> Music_list
 361 %type <outputdef>  music_output_def_body
 362 %type <music> shorthand_command_req
 363 %type <music>   post_event
 364 %type <music> command_req verbose_command_req
 365 %type <music>   extender_req
 366 %type <music> hyphen_req
 367 %type <music> string_number_event
 368 %type <scm>     string bare_number number_expression number_term number_factor
 369 %type <score>   score_block score_body
 370
 371 %type <scm>     translator_spec_block translator_spec_body
 372 %type <music>   tempo_event
 373 %type <scm> notenames_body notenames_block chordmodifiers_block
 374 %type <scm>     script_abbreviation
 375
 376
 377
 378 %left '-' '+'
 379
 380 /* We don't assign precedence to / and *, because we might need varied
 381 prec levels in different prods */
 382
 383 %left UNARY_MINUS
 384
 385 %%
 386
 387 lilypond:       /* empty */
 388         | lilypond toplevel_expression {}
 389         | lilypond assignment  { }
 390         | lilypond error {
 391                 THIS->error_level_  = 1;
 392         }
 393         | lilypond INVALID      {
 394                 THIS->error_level_  = 1;
 395         }
 396         ;
 397
 398 toplevel_expression:
 399         notenames_block                 {
 400                 THIS->lexer_->pitchname_tab_ =  $1;
 401         }
 402         | chordmodifiers_block                  {
 403                 THIS->lexer_->chordmodifier_tab_  = $1;
 404         }
 405         | lilypond_header {
 406                 THIS->input_file_->header_ = $1;
 407         }
 408         | score_block {
 409                 THIS->input_file_->scores_.push ($1);
 410         }
 411         | output_def {
 412                 if (dynamic_cast<Paper_def*> ($1))
 413                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultpaper"), $1->self_scm ());
 414                 else if (dynamic_cast<Midi_def*> ($1))
 415                         THIS->lexer_->set_identifier (scm_makfrom0str ("$defaultmidi"), $1->self_scm ());
 416         }
 417         ;
 418
 419 embedded_scm:
 420         SCM_T
 421         | SCM_IDENTIFIER
 422         ;
 423
 424
 425 chordmodifiers_block:
 426         CHORDMODIFIERS notenames_body   {  $$ = $2; }
 427         ;
 428
 429 notenames_block:
 430         PITCHNAMES notenames_body   {  $$ = $2; }
 431         ;
 432
 433 notenames_body:
 434         embedded_scm    {
 435           int i = scm_ilength ($1);
 436
 437           SCM tab = scm_make_vector (gh_int2scm (i), SCM_EOL);
 438           for (SCM s = $1; gh_pair_p (s); s = ly_cdr (s)) {
 439                 SCM pt = ly_cdar (s);
 440                 scm_hashq_set_x (tab, ly_caar (s), pt);
 441           }
 442           $$ = tab;
 443         }
 444         ;
 445
 446 lilypond_header_body:
 447         {
 448                 $$ = ly_make_anonymous_module ();
 449                 THIS->lexer_->add_scope ($$);
 450         }
 451         | lilypond_header_body assignment  {
 452
 453         }
 454         ;
 455
 456 lilypond_header:
 457         HEADER '{' lilypond_header_body '}'     {
 458                 $$ = THIS->lexer_-> remove_scope();
 459         }
 460         ;
 461
 462
 463 /*
 464         DECLARATIONS
 465 */
 466 assignment:
 467         STRING {
 468                 THIS->push_spot ();
 469         }
 470         /* cont */ '=' identifier_init  {
 471
 472         /*
 473                 Should find generic way of associating input with objects.
 474         */
 475                 Input ip = THIS->pop_spot ();
 476
 477                 if (! regular_identifier_b ($1))
 478                 {
 479                         ip.warning (_ ("Identifier should have alphabetic characters only"));
 480                 }
 481
 482                 THIS->lexer_->set_identifier ($1, $4);
 483
 484 /*
 485  TODO: devise standard for protection in parser.
 486
 487   The parser stack lives on the C-stack, which means that
 488 all objects can be unprotected as soon as they're here.
 489
 490 */
 491         }
 492         | embedded_scm { }
 493         ;
 494
 495
 496
 497 identifier_init:
 498         score_block {
 499                 $$ = $1->self_scm ();
 500                 scm_gc_unprotect_object ($$);
 501         }
 502         | full_markup {
 503                 $$ = $1;
 504         }
 505         | output_def {
 506                 $$ = $1->self_scm ();
 507                 scm_gc_unprotect_object ($$);
 508         }
 509         | translator_spec_block {
 510                 $$ = $1;
 511         }
 512         | Music  {
 513                 $$ = $1->self_scm ();
 514                 scm_gc_unprotect_object ($$);
 515         }
 516         | post_event {
 517                 $$ = $1->self_scm ();
 518                 scm_gc_unprotect_object ($$);
 519         }
 520         | verbose_duration {
 521                 $$ = $1;
 522         }
 523         | number_expression {
 524                 $$ = $1;
 525         }
 526         | string {
 527                 $$ = $1;
 528         }
 529         | embedded_scm  {
 530                 $$ = $1;
 531         }
 532         ;
 533
 534 translator_spec_block:
 535         TRANSLATOR '{' translator_spec_body '}'
 536                 {
 537                 $$ = $3;
 538         }
 539         ;
 540
 541 translator_spec_body:
 542         TRANSLATOR_IDENTIFIER   {
 543                 $$ = $1;
 544                 unsmob_translator_def ($$)-> set_spot (THIS->here_input ());
 545         }
 546         | TYPE STRING   {
 547                 $$ = Translator_def::make_scm ();
 548                 Translator_def*td =  unsmob_translator_def ($$);
 549                 td->translator_group_type_ = $2;
 550                 td->set_spot (THIS->here_input ());
 551         }
 552         | translator_spec_body DESCRIPTION string  {
 553                 unsmob_translator_def ($$)->description_ = $3;
 554         }
 555         | translator_spec_body STRING '=' embedded_scm                  {
 556                 unsmob_translator_def ($$)->add_property_assign ($2, $4);
 557         }
 558         | translator_spec_body STRING OVERRIDE embedded_scm '=' embedded_scm {
 559                 unsmob_translator_def ($$)
 560                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 561         }
 562         | translator_spec_body STRING SET embedded_scm '=' embedded_scm {
 563                 unsmob_translator_def ($$)
 564                         ->add_push_property (scm_string_to_symbol ($2), $4, $6);
 565         }
 566         | translator_spec_body STRING REVERT embedded_scm  {
 567           unsmob_translator_def ($$)->add_pop_property (
 568                 scm_string_to_symbol ($2), $4);
 569         }
 570         | translator_spec_body NAME STRING  {
 571                 unsmob_translator_def ($$)->type_name_ = $3;
 572         }
 573         | translator_spec_body CONSISTS STRING  {
 574                 unsmob_translator_def ($$)->add_element ($3);
 575         }
 576         | translator_spec_body ALIAS STRING  {
 577                 Translator_def*td = unsmob_translator_def ($$);
 578                 td->type_aliases_ = scm_cons ($3, td->type_aliases_);
 579         }
 580         | translator_spec_body GROBDESCRIPTIONS embedded_scm {
 581                 Translator_def*td = unsmob_translator_def($$);
 582                 // td->add_property_assign (ly_symbol2scm ("allGrobDescriptions"), $3);
 583                 for (SCM p = $3; gh_pair_p (p); p = ly_cdr (p))
 584                         td->add_property_assign (scm_symbol_to_string (ly_caar (p)), ly_cdar (p));
 585         }
 586         | translator_spec_body CONSISTSEND STRING  {
 587                 unsmob_translator_def ($$)->add_last_element ( $3);
 588         }
 589         | translator_spec_body ACCEPTS STRING  {
 590                 unsmob_translator_def ($$)->set_acceptor ($3,true);
 591         }
 592         | translator_spec_body DENIES STRING  {
 593                 unsmob_translator_def ($$)->set_acceptor ($3,false);
 594         }
 595         | translator_spec_body REMOVE STRING  {
 596                 unsmob_translator_def ($$)->remove_element ($3);
 597         }
 598         ;
 599
 600 /*
 601         SCORE
 602 */
 603 score_block:
 604         SCORE {
 605                 THIS->push_spot ();
 606         }
 607         /*cont*/ '{' score_body '}'     {
 608                 THIS->pop_spot ();
 609                 $$ = $4;
 610                 if (!$$->defs_.size ())
 611                 {
 612                   Music_output_def *id =
 613                         unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 614                   $$->add_output (id ? id->clone () :  new Paper_def );
 615                 }
 616         }
 617         ;
 618
 619 score_body:
 620         Music   {
 621                 $$ = new Score;
 622
 623                 $$->set_spot (THIS->here_input ());
 624                 SCM m = $1->self_scm ();
 625                 scm_gc_unprotect_object (m);
 626
 627                 /*
 628                         guh.
 629                 */
 630                 SCM check_funcs = scm_c_eval_string ("toplevel-music-functions");
 631                 for (; gh_pair_p (check_funcs); check_funcs = gh_cdr (check_funcs))
 632                         m = gh_call1 (gh_car (check_funcs), m);
 633                 $$->music_ = m;
 634
 635         }
 636         | SCORE_IDENTIFIER {
 637                 $$ = unsmob_score ($1);
 638                 $$->set_spot (THIS->here_input ());
 639         }
 640         | score_body lilypond_header    {
 641                 $$->header_ = $2;
 642         }
 643         | score_body output_def {
 644                 $$->add_output ($2);
 645         }
 646         | score_body error {
 647
 648         }
 649         ;
 650
 651
 652 /*
 653         MIDI
 654 */
 655 output_def:
 656         music_output_def_body '}' {
 657                 $$ = $1;
 658                 THIS-> lexer_-> remove_scope ();
 659         }
 660         ;
 661
 662 music_output_def_body:
 663         MIDI '{'    {
 664                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultmidi"));
 665
 666
 667                 Midi_def* p =0;
 668                 if (id)
 669                         p = dynamic_cast<Midi_def*> (id->clone ());
 670                 else
 671                         p = new Midi_def;
 672
 673                 $$ = p;
 674                 THIS->lexer_->add_scope (p->scope_);
 675         }
 676         | PAPER '{'     {
 677                 Music_output_def *id = unsmob_music_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"));
 678                   Paper_def *p = 0;
 679                 if (id)
 680                         p = dynamic_cast<Paper_def*> (id->clone ());
 681                 else
 682                         p = new Paper_def;
 683
 684                 THIS->lexer_->add_scope (p->scope_);
 685                 $$ = p;
 686         }
 687         | PAPER '{' MUSIC_OUTPUT_DEF_IDENTIFIER         {
 688                 Music_output_def * o =  unsmob_music_output_def ($3);
 689                 $$ =o;
 690
 691                 THIS->lexer_->add_scope (o->scope_);
 692         }
 693         | MIDI '{' MUSIC_OUTPUT_DEF_IDENTIFIER  {
 694                 Music_output_def * o =  unsmob_music_output_def ($3);
 695                 $$ = o;
 696
 697                 THIS->lexer_->add_scope (o->scope_);
 698         }
 699         | music_output_def_body assignment  {
 700
 701         }
 702         | music_output_def_body translator_spec_block   {
 703                 $$->assign_translator ($2);
 704         }
 705         | music_output_def_body tempo_event  {
 706                 /*
 707                         junk this ? there already is tempo stuff in
 708                         music.
 709                 */
 710                 int m = gh_scm2int ( $2->get_mus_property ("metronome-count"));
 711                 Duration *d = unsmob_duration ($2->get_mus_property ("tempo-unit"));
 712                 Midi_def * md = dynamic_cast<Midi_def*> ($$);
 713                 if (md)
 714                         md->set_tempo (d->get_length (), m);
 715         }
 716         | music_output_def_body error {
 717
 718         }
 719         ;
 720
 721 tempo_event:
 722         TEMPO steno_duration '=' bare_unsigned  {
 723                 $$ = MY_MAKE_MUSIC("MetronomeChangeEvent");
 724                 $$->set_mus_property ("tempo-unit", $2);
 725                 $$->set_mus_property ("metronome-count", gh_int2scm ( $4));
 726         }
 727         ;
 728
 729 /*
 730 The representation of a  list is the
 731
 732   (LIST . LAST-CONS)
 733
 734  to have  efficient append.
 735 */
 736 Music_list:
 737         /* empty */ {
 738                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 739         }
 740         | Music_list Music {
 741                 SCM s = $$;
 742                 SCM c = scm_cons ($2->self_scm (), SCM_EOL);
 743                 scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
 744                 if (gh_pair_p (ly_cdr (s)))
 745                         gh_set_cdr_x (ly_cdr (s), c); /* append */
 746                 else
 747                         gh_set_car_x (s, c); /* set first cons */
 748                 gh_set_cdr_x (s, c) ;  /* remember last cell */
 749         }
 750         | Music_list error {
 751         }
 752         ;
 753
 754
 755 Music:
 756         Simple_music
 757         | Composite_music
 758         ;
 759
 760 Alternative_music:
 761         /* empty */ {
 762                 $$ = SCM_EOL;
 763         }
 764         | ALTERNATIVE '{' Music_list '}' {
 765                 $$ = $3;
 766         }
 767         ;
 768
 769 Repeated_music:
 770         REPEAT string bare_unsigned Music Alternative_music
 771         {
 772                 Music *beg = $4;
 773                 int times = $3;
 774                 SCM alts = gh_pair_p ($5) ? gh_car ($5) : SCM_EOL;
 775                 if (times < scm_ilength (alts)) {
 776                   unsmob_music (gh_car (alts))
 777                     ->origin ()->warning (
 778                     _("More alternatives than repeats.  Junking excess alternatives."));
 779                   alts = ly_truncate_list (times, alts);
 780                 }
 781
 782
 783                 static SCM proc;
 784                 if (!proc)
 785                         proc = scm_c_eval_string ("make-repeated-music");
 786
 787                 SCM mus = scm_call_1 (proc, $2);
 788                 scm_gc_protect_object (mus); // UGH.
 789                 Music *r =unsmob_music (mus);
 790                 if (beg)
 791                         {
 792                         r-> set_mus_property ("element", beg->self_scm ());
 793                         scm_gc_unprotect_object (beg->self_scm ());
 794                         }
 795                 r->set_mus_property ("repeat-count", gh_int2scm (times >? 1));
 796
 797                 r-> set_mus_property ("elements",alts);
 798                 if (gh_equal_p ($2, scm_makfrom0str ("tremolo"))) {
 799                         /*
 800                         we can not get durations and other stuff correct down the line, so we have to
 801                         add to the duration log here.
 802                         */
 803                         static SCM func;
 804
 805                         if (!func)
 806                                 func = scm_primitive_eval (ly_symbol2scm ("shift-duration-log"));
 807
 808                         int dots = ($3 % 3) ? 0 : 1;
 809                         int shift = -intlog2 ((dots) ? ($3*2/3) : $3);
 810
 811                         Sequential_music * seq = dynamic_cast<Sequential_music*> ($4);
 812
 813                         if (seq) {
 814                                 int list_len =scm_ilength (seq->music_list ());
 815                                 if (list_len != 2)
 816                                         seq->origin ()->warning ("Chord tremolo must have 2 elements.");
 817                                 shift -= 1;
 818                                 r->compress (Moment (Rational (1,list_len)));
 819                                 }
 820                         gh_call3 (func, r->self_scm (), gh_int2scm(shift),gh_int2scm(dots));
 821
 822                 }
 823                 r->set_spot (*$4->origin ());
 824
 825                 $$ = r;
 826         }
 827         ;
 828
 829 Sequential_music:
 830         SEQUENTIAL '{' Music_list '}'           {
 831                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 832                 $$->set_mus_property ("elements", ly_car ($3));
 833                 $$->set_spot(THIS->here_input());
 834         }
 835         | '{' Music_list '}'            {
 836                 $$ = MY_MAKE_MUSIC("SequentialMusic");
 837                 $$->set_mus_property ("elements", ly_car ($2));
 838                 $$->set_spot(THIS->here_input());
 839         }
 840         ;
 841
 842 Simultaneous_music:
 843         SIMULTANEOUS '{' Music_list '}'{
 844                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 845                 $$->set_mus_property ("elements", ly_car ($3));
 846                 $$->set_spot(THIS->here_input());
 847
 848         }
 849         | '<' Music_list '>'    {
 850                 $$ = MY_MAKE_MUSIC("SimultaneousMusic");
 851                 $$->set_mus_property ("elements", ly_car ($2));
 852                 $$->set_spot(THIS->here_input());
 853         }
 854         ;
 855
 856 Simple_music:
 857         event_chord             { $$ = $1; }
 858         | APPLYOUTPUT embedded_scm {
 859                 if (!ly_input_procedure_p ($2))
 860                         THIS->parser_error (_ ("\\applycontext takes function argument"));
 861                 $$ = MY_MAKE_MUSIC ("ApplyOutputEvent");
 862                 $$->set_mus_property ("procedure", $2);
 863                 $$->set_spot (THIS->here_input());
 864         }
 865         | APPLYCONTEXT embedded_scm {
 866                 if (!ly_input_procedure_p ($2))
 867                         THIS->parser_error (_ ("\\applycontext takes function argument"));
 868                 $$ = MY_MAKE_MUSIC ("ApplyContext");
 869                 $$->set_mus_property ("procedure", $2);
 870                 $$->set_spot (THIS->here_input());
 871         }
 872         | OUTPUTPROPERTY embedded_scm embedded_scm '=' embedded_scm     {
 873                 SCM pred = $2;
 874                 if (!gh_symbol_p ($3))
 875                 {
 876                         THIS->parser_error (_ ("Second argument must be a symbol"));
 877                 }
 878                 /* Should check # args */
 879                 if (!gh_procedure_p (pred))
 880                 {
 881                         THIS->parser_error (_ ("First argument must be a procedure taking one argument"));
 882                 }
 883
 884                 Music*m = MY_MAKE_MUSIC("OutputPropertySetMusic");
 885                 m->set_mus_property ("predicate", pred);
 886                 m->set_mus_property ("grob-property", $3);
 887                 m->set_mus_property ("grob-value",  $5);
 888
 889                 $$ = m;
 890         }
 891         | MUSIC_IDENTIFIER {
 892                 $$ = unsmob_music ($1);
 893         }
 894         | property_def
 895         | translator_change
 896         ;
 897
 898
 899 Composite_music:
 900         CONTEXT STRING Music    {
 901                 Music*csm =MY_MAKE_MUSIC("ContextSpeccedMusic");
 902
 903                 csm->set_mus_property ("element", $3->self_scm ());
 904                 scm_gc_unprotect_object ($3->self_scm ());
 905
 906                 csm->set_mus_property ("context-type",$2);
 907                 csm->set_mus_property ("context-id", scm_makfrom0str (""));
 908
 909                 $$ = csm;
 910         }
 911         | AUTOCHANGE STRING Music       {
 912         Music*chm = MY_MAKE_MUSIC("AutoChangeMusic");
 913                 chm->set_mus_property ("element", $3->self_scm ());
 914                 chm->set_mus_property ("iterator-ctor", Auto_change_iterator::constructor_proc);
 915
 916                 scm_gc_unprotect_object ($3->self_scm ());
 917                 chm->set_mus_property ("what", $2);
 918
 919                 $$ = chm;
 920                 chm->set_spot (*$3->origin ());
 921         }
 922         | GRACE Music {
 923 #if 1
 924         /*
 925                 The other version is for easier debugging  of
 926                 Sequential_music_iterator in combination with grace notes.
 927         */
 928
 929                 SCM start = THIS->lexer_->lookup_identifier ("startGraceMusic");
 930                 SCM stop = THIS->lexer_->lookup_identifier ("stopGraceMusic");
 931                 Music *startm = unsmob_music (start);
 932                 Music *stopm = unsmob_music (stop);
 933
 934                 SCM ms = SCM_EOL;
 935                 if (stopm) {
 936                         stopm = stopm->clone ();
 937                         ms = scm_cons (stopm->self_scm (), ms);
 938                         scm_gc_unprotect_object (stopm->self_scm ());
 939                 }
 940                 ms = scm_cons ($2->self_scm (), ms);
 941                 scm_gc_unprotect_object ($2->self_scm());
 942                 if (startm) {
 943                         startm = startm->clone ();
 944                         ms = scm_cons (startm->self_scm () , ms);
 945                         scm_gc_unprotect_object (startm->self_scm ());
 946                 }
 947
 948
 949                 Music* seq = MY_MAKE_MUSIC("SequentialMusic");
 950                 seq->set_mus_property ("elements", ms);
 951
 952
 953                 $$ = MY_MAKE_MUSIC("GraceMusic");
 954                 $$->set_mus_property ("element", seq->self_scm ());
 955                 scm_gc_unprotect_object (seq->self_scm ());
 956 #else
 957                 $$ = MY_MAKE_MUSIC("GraceMusic");
 958                 $$->set_mus_property ("element", $2->self_scm ());
 959                 scm_gc_unprotect_object ($2->self_scm ());
 960 #endif
 961         }
 962         | CONTEXT string '=' string Music {
 963                 Music * csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
 964
 965                 csm->set_mus_property ("element", $5->self_scm ());
 966                 scm_gc_unprotect_object ($5->self_scm ());
 967
 968                 csm->set_mus_property ("context-type", $2);
 969                 csm->set_mus_property ("context-id", $4);
 970
 971                 $$ = csm;
 972         }
 973         | TIMES {
 974                 THIS->push_spot ();
 975         }
 976         /* CONTINUED */
 977                 fraction Music
 978
 979         {
 980                 int n = gh_scm2int (ly_car ($3)); int d = gh_scm2int (ly_cdr ($3));
 981                 Music *mp = $4;
 982         $$= MY_MAKE_MUSIC("TimeScaledMusic");
 983                 $$->set_spot (THIS->pop_spot ());
 984
 985
 986                 $$->set_mus_property ("element", mp->self_scm ());
 987                 scm_gc_unprotect_object (mp->self_scm ());
 988                 $$->set_mus_property ("numerator", gh_int2scm (n));
 989                 $$->set_mus_property ("denominator", gh_int2scm (d));
 990                 $$->compress (Moment (Rational (n,d)));
 991
 992         }
 993         | Repeated_music                { $$ = $1; }
 994         | Simultaneous_music            { $$ = $1; }
 995         | Sequential_music              { $$ = $1; }
 996         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords Music {
 997                 $$ = MY_MAKE_MUSIC("TransposedMusic");
 998                 Music *p = $4;
 999                 Pitch from = *unsmob_pitch ($2);
1000                 Pitch to = *unsmob_pitch ($3);
1001
1002                 p->transpose (interval (from, to));
1003                 $$->set_mus_property ("element", p->self_scm ());
1004                 scm_gc_unprotect_object (p->self_scm ());
1005         }
1006         | APPLY embedded_scm Music  {
1007                 if (!ly_input_procedure_p ($2))
1008                         THIS->parser_error (_ ("\\apply takes function argument"));
1009
1010                 SCM ret = gh_call1 ($2, $3->self_scm ());
1011                 Music *m = unsmob_music (ret);
1012                 if (!m) {
1013                         THIS->parser_error ("\\apply must return a Music");
1014                         m = MY_MAKE_MUSIC("Music");
1015                         }
1016                 $$ = m;
1017         }
1018         | NOTES
1019                 { THIS->lexer_->push_note_state (); }
1020         Music
1021                 { $$ = $3;
1022                   THIS->lexer_->pop_state ();
1023                 }
1024         | FIGURES
1025                 { THIS->lexer_->push_figuredbass_state (); }
1026         Music
1027                 {
1028                   Music * chm = MY_MAKE_MUSIC("UntransposableMusic");
1029                   chm->set_mus_property ("element", $3->self_scm ());
1030                   $$ = chm;
1031                   scm_gc_unprotect_object ($3->self_scm());
1032
1033                   THIS->lexer_->pop_state ();
1034         }
1035         | CHORDS
1036                 { THIS->lexer_->push_chord_state (); }
1037         Music
1038                 {
1039                   Music * chm = MY_MAKE_MUSIC("UnrelativableMusic");
1040                   chm->set_mus_property ("element", $3->self_scm ());
1041                   scm_gc_unprotect_object ($3->self_scm());
1042                   $$ = chm;
1043
1044                   THIS->lexer_->pop_state ();
1045         }
1046         | LYRICS
1047                 { THIS->lexer_->push_lyric_state (); }
1048         Music
1049                 {
1050                   $$ = $3;
1051                   THIS->lexer_->pop_state ();
1052         }
1053         | relative_music        { $$ = $1; }
1054         | re_rhythmed_music     { $$ = $1; }
1055         | part_combined_music   { $$ = $1; }
1056         ;
1057
1058 relative_music:
1059         RELATIVE absolute_pitch Music {
1060                 Music * p = $3;
1061                 Pitch pit = *unsmob_pitch ($2);
1062                 $$ = MY_MAKE_MUSIC("RelativeOctaveMusic");
1063
1064                 $$->set_mus_property ("element", p->self_scm ());
1065                 scm_gc_unprotect_object (p->self_scm ());
1066
1067
1068                 if (lily_1_8_relative)
1069                         $$->set_mus_property ("last-pitch", p->to_relative_octave (pit).smobbed_copy ());
1070
1071         }
1072         ;
1073
1074 re_rhythmed_music:
1075         ADDLYRICS Music Music {
1076         Music*l =MY_MAKE_MUSIC("LyricCombineMusic");
1077           l->set_mus_property ("elements", gh_list ($2->self_scm (), $3->self_scm (), SCM_UNDEFINED));
1078           scm_gc_unprotect_object ($3->self_scm ());
1079           scm_gc_unprotect_object ($2->self_scm ());
1080           $$ = l;
1081         }
1082         ;
1083
1084 part_combined_music:
1085         PARTCOMBINE STRING Music Music {
1086         Music * p= MY_MAKE_MUSIC("PartCombineMusic");
1087                 p->set_mus_property ("what", $2);
1088                 p->set_mus_property ("elements", gh_list ($3->self_scm (),$4->self_scm (), SCM_UNDEFINED));
1089
1090                 scm_gc_unprotect_object ($3->self_scm ());
1091                 scm_gc_unprotect_object ($4->self_scm ());
1092
1093                 $$ = p;
1094         }
1095         ;
1096
1097 translator_change:
1098         TRANSLATOR STRING '=' STRING  {
1099                 Music*t= MY_MAKE_MUSIC("TranslatorChange");
1100                 t-> set_mus_property ("change-to-type", $2);
1101                 t-> set_mus_property ("change-to-id", $4);
1102
1103                 $$ = t;
1104                 $$->set_spot (THIS->here_input ());
1105         }
1106         ;
1107
1108 property_def:
1109         simple_property_def
1110         | ONCE simple_property_def {
1111                 $$ = $2;
1112                 SCM e = $2->get_mus_property ("element");
1113                 unsmob_music (e)->set_mus_property ("once", SCM_BOOL_T);
1114         }
1115         ;
1116
1117 simple_property_def:
1118         PROPERTY STRING '.' STRING '='  scalar {
1119                 Music *t = set_property_music (scm_string_to_symbol ($4), $6);
1120                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1121
1122                 csm->set_mus_property ("element", t->self_scm ());
1123                 scm_gc_unprotect_object (t->self_scm ());
1124
1125                 $$ = csm;
1126                 $$->set_spot (THIS->here_input ());
1127
1128                 csm-> set_mus_property ("context-type", $2);
1129         }
1130         | PROPERTY STRING '.' STRING UNSET {
1131
1132                 Music *t = MY_MAKE_MUSIC("PropertyUnset");
1133                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1134
1135                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1136                 csm->set_mus_property ("element", t->self_scm ());
1137                 scm_gc_unprotect_object (t->self_scm ());
1138
1139                 $$ = csm;
1140                 $$->set_spot (THIS->here_input ());
1141
1142                 csm-> set_mus_property ("context-type", $2);
1143         }
1144         | PROPERTY STRING '.' STRING SET embedded_scm '=' embedded_scm {
1145                 bool autobeam
1146                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1147                 bool itc = internal_type_checking_global_b;
1148                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1149                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1150                 t->set_mus_property ("pop-first", SCM_BOOL_T);
1151                 if (autobeam)
1152                         internal_type_checking_global_b = false;
1153                 t->set_mus_property ("grob-property", $6);
1154                 if (autobeam)
1155                         internal_type_checking_global_b = itc;
1156                 t->set_mus_property ("grob-value", $8);
1157
1158                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1159                 csm->set_mus_property ("element", t->self_scm ());
1160                 scm_gc_unprotect_object (t->self_scm ());
1161                 $$ = csm;
1162                 $$->set_spot (THIS->here_input ());
1163
1164                 csm-> set_mus_property ("context-type", $2);
1165         }
1166         | PROPERTY STRING '.' STRING OVERRIDE
1167                 embedded_scm '=' embedded_scm
1168         {
1169                 /*
1170                         UGH UGH UGH UGH.
1171                 */
1172                 bool autobeam
1173                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1174                 bool itc = internal_type_checking_global_b;
1175
1176                 Music *t = MY_MAKE_MUSIC("OverrideProperty");
1177                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1178                 if (autobeam)
1179                         internal_type_checking_global_b = false;
1180                 t->set_mus_property ("grob-property", $6);
1181                 t->set_mus_property ("grob-value", $8);
1182                 if (autobeam)
1183                         internal_type_checking_global_b = itc;
1184
1185                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1186                 csm->set_mus_property ("element", t->self_scm ());
1187                 scm_gc_unprotect_object (t->self_scm ());
1188
1189                 $$ = csm;
1190                 $$->set_spot (THIS->here_input ());
1191
1192                 csm-> set_mus_property ("context-type", $2);
1193
1194         }
1195         | PROPERTY STRING '.' STRING REVERT embedded_scm {
1196                 Music *t = MY_MAKE_MUSIC("RevertProperty");
1197                 bool autobeam
1198                   = gh_equal_p ($4, scm_makfrom0str ("autoBeamSettings"));
1199                 bool itc = internal_type_checking_global_b;
1200
1201                 t->set_mus_property ("symbol", scm_string_to_symbol ($4));
1202                 if (autobeam)
1203                         internal_type_checking_global_b = false;
1204                 t->set_mus_property ("grob-property", $6);
1205                 if (autobeam)
1206                         internal_type_checking_global_b = itc;
1207
1208                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1209                 csm->set_mus_property ("element", t->self_scm ());
1210                 scm_gc_unprotect_object (t->self_scm ());
1211
1212                 $$ = csm;
1213                 $$->set_spot (THIS->here_input ());
1214
1215                 csm-> set_mus_property ("context-type", $2);
1216         }
1217         ;
1218
1219
1220 scalar:
1221         string          { $$ = $1; }
1222         | bare_int      { $$ = gh_int2scm ($1); }
1223         | embedded_scm  { $$ = $1; }
1224         | full_markup {  $$ = $1; }
1225         | DIGIT { $$ = gh_int2scm ($1); }
1226         ;
1227
1228
1229
1230 /*
1231 This is a trick:
1232
1233 Adding pre_events to the simple_element
1234 makes the choice between
1235
1236   string:  STRING
1237
1238 and
1239
1240   simple_element: STRING
1241
1242 a single shift/reduction conflict.
1243
1244 nevertheless, this is not very clean, and we should find a different
1245 solution.
1246
1247 */
1248 pre_events: {
1249                 THIS->push_spot ();
1250         }
1251         ;
1252
1253 event_chord:
1254         pre_events simple_element post_events   {
1255                 SCM elts = $2-> get_mus_property ("elements");
1256
1257                 elts = gh_append2 (elts, scm_reverse_x ($3, SCM_EOL));
1258
1259                 $2->set_mus_property ("elements", elts);
1260                 $$ = $2;
1261         }
1262         | command_element
1263         | note_chord_element
1264         ;
1265
1266
1267 note_chord_element:
1268         chord_body optional_notemode_duration post_events
1269         {
1270                 SCM dur = unsmob_duration ($2)->smobbed_copy();
1271                 SCM es = $1->get_mus_property ("elements");
1272                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1273
1274                 for (SCM s = es; gh_pair_p (s); s = gh_cdr (s))
1275                   unsmob_music (gh_car(s))->set_mus_property ("duration", dur);
1276                 es = gh_append2 (es, postevs);
1277
1278                 $1-> set_mus_property ("elements", es);
1279                 $$ = $1;
1280         }
1281         ;
1282
1283 chord_body:
1284         CHORD_OPEN chord_body_elements CHORD_CLOSE
1285         {
1286                 $$ = MY_MAKE_MUSIC("EventChord");
1287                 $$->set_mus_property ("elements",
1288                         scm_reverse_x ($2, SCM_EOL));
1289         }
1290         ;
1291
1292 chord_body_elements:
1293         /* empty */             { $$ = SCM_EOL; }
1294         | chord_body_elements chord_body_element {
1295                 $$ = gh_cons ($2->self_scm(), $1);
1296                 scm_gc_unprotect_object ($2->self_scm());
1297         }
1298         ;
1299
1300 chord_body_element:
1301         pitch exclamations questions post_events
1302         {
1303                 Music * n = MY_MAKE_MUSIC("NoteEvent");
1304                 n->set_mus_property ("pitch", $1);
1305                 if ($3 % 2)
1306                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1307                 if ($2 % 2 || $3 % 2)
1308                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1309
1310                 SCM arts = scm_reverse_x ($4, SCM_EOL);
1311                 n->set_mus_property ("articulations", arts);
1312
1313                 $$ = n;
1314         }
1315         ;
1316
1317 command_element:
1318         command_req {
1319                 $$ = MY_MAKE_MUSIC("EventChord");
1320                 $$->set_mus_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
1321           scm_gc_unprotect_object ($1->self_scm());
1322
1323                 $$-> set_spot (THIS->here_input ());
1324                 $1-> set_spot (THIS->here_input ());
1325         }
1326         | E_LEFTSQUARE {
1327                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1328                 l->set_mus_property ("span-direction", gh_int2scm (START));
1329                 l->set_spot (THIS->here_input ());
1330
1331                 $$ = MY_MAKE_MUSIC("EventChord");
1332                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1333                 scm_gc_unprotect_object (l->self_scm());
1334                 $$->set_spot (THIS->here_input ());
1335         }
1336         | E_RIGHTSQUARE {
1337                 Music *l = MY_MAKE_MUSIC("LigatureEvent");
1338                 l->set_mus_property ("span-direction", gh_int2scm (STOP));
1339                 l->set_spot (THIS->here_input ());
1340
1341                 $$ = MY_MAKE_MUSIC("EventChord");
1342                 $$->set_mus_property ("elements", scm_cons (l->self_scm (), SCM_EOL));
1343                 $$->set_spot (THIS->here_input ());
1344                 scm_gc_unprotect_object (l->self_scm());
1345         }
1346         | E_BACKSLASH {
1347                 $$ = MY_MAKE_MUSIC("VoiceSeparator");
1348                 $$->set_spot (THIS->here_input ());
1349         }
1350         | '|'      {
1351
1352                 $$ = MY_MAKE_MUSIC("BarCheck");
1353                 $$->set_spot (THIS->here_input ());
1354         }
1355         | BAR STRING                    {
1356                 Music *t = set_property_music (ly_symbol2scm ("whichBar"), $2);
1357
1358                 Music *csm = MY_MAKE_MUSIC("ContextSpeccedMusic");
1359                 csm->set_mus_property ("element", t->self_scm ());
1360                 scm_gc_unprotect_object (t->self_scm ());
1361
1362                 $$ = csm;
1363                 $$->set_spot (THIS->here_input ());
1364
1365                 csm->set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1366         }
1367         | PARTIAL duration_length       {
1368                 Moment m = - unsmob_duration ($2)->get_length ();
1369                 Music * p = set_property_music (ly_symbol2scm ( "measurePosition"),m.smobbed_copy ());
1370
1371                 Music * sp = MY_MAKE_MUSIC("ContextSpeccedMusic");
1372                 sp->set_mus_property ("element", p->self_scm ());
1373                 scm_gc_unprotect_object (p->self_scm ());
1374
1375                 $$ =sp ;
1376                 sp-> set_mus_property ("context-type", scm_makfrom0str ("Timing"));
1377         }
1378         | CLEF STRING  {
1379                 static SCM proc ;
1380                 if (!proc)
1381                         proc = scm_c_eval_string ("make-clef-set");
1382
1383                 SCM result = scm_call_1 (proc, $2);
1384                 scm_gc_protect_object (result);
1385                 $$ = unsmob_music (result);
1386         }
1387         | TIME_T fraction  {
1388                 static SCM proc;
1389                 if (!proc)
1390                         proc = scm_c_eval_string ("make-time-signature-set");
1391
1392                 SCM result = scm_apply_2   (proc, gh_car ($2), gh_cdr ($2), SCM_EOL);
1393                 scm_gc_protect_object (result);
1394                 $$ = unsmob_music (result);
1395         }
1396         ;
1397
1398 command_req:
1399         shorthand_command_req   { $$ = $1; }
1400         | verbose_command_req   { $$ = $1; }
1401         ;
1402
1403 shorthand_command_req:
1404         extender_req {
1405                 $$ = $1;
1406         }
1407         | hyphen_req {
1408                 $$ = $1;
1409         }
1410         | BREATHE {
1411                 $$ = MY_MAKE_MUSIC("BreathingSignEvent");
1412         }
1413         | E_TILDE {
1414                 $$ = MY_MAKE_MUSIC("PesOrFlexaEvent");
1415         }
1416         ;
1417
1418 verbose_command_req:
1419         MARK DEFAULT  {
1420                 Music * m = MY_MAKE_MUSIC("MarkEvent");
1421                 $$ = m;
1422         }
1423         | MARK scalar {
1424                 Music *m = MY_MAKE_MUSIC("MarkEvent");
1425                 m->set_mus_property ("label", $2);
1426                 $$ = m;
1427         }
1428         | SKIP duration_length {
1429                 Music * skip = MY_MAKE_MUSIC("SkipEvent");
1430                 skip->set_mus_property ("duration", $2);
1431
1432                 $$ = skip;
1433         }
1434         | tempo_event {
1435                 $$ = $1;
1436         }
1437         | KEY DEFAULT {
1438                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1439                 $$ = key;
1440         }
1441         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1442
1443                 Music *key= MY_MAKE_MUSIC("KeyChangeEvent");
1444                 if (scm_ilength ($3) > 0)
1445                 {
1446                         key->set_mus_property ("pitch-alist", $3);
1447                         key->set_mus_property ("tonic", Pitch (0,0,0).smobbed_copy());
1448                         ((Music*)key)->transpose (* unsmob_pitch ($2));
1449                 } else {
1450                         THIS->parser_error (_("Second argument must be pitch list."));
1451                 }
1452
1453                 $$ = key;
1454         }
1455         ;
1456
1457 post_events:
1458         /* empty */ {
1459                 $$ = SCM_EOL;
1460         }
1461         | post_events post_event {
1462                 $2->set_spot (THIS->here_input ());
1463                 $$ = gh_cons ($2->self_scm(), $$);
1464                 scm_gc_unprotect_object ($2->self_scm());
1465         }
1466         ;
1467
1468
1469
1470 post_event:
1471         direction_less_event {
1472                 $$ = $1;
1473         }
1474         | script_dir direction_reqd_event {
1475                 $2->set_mus_property ("direction", gh_int2scm ($1));
1476                 $$ = $2;
1477         }
1478         | script_dir direction_less_event {
1479                 $2->set_mus_property ("direction", gh_int2scm ($1));
1480                 $$ = $2;
1481         }
1482         | string_number_event
1483         ;
1484
1485 string_number_event:
1486         E_UNSIGNED {
1487                 Music * s = MY_MAKE_MUSIC("StringNumberEvent");
1488                 s->set_mus_property ("string-number",  gh_int2scm($1));
1489                 s->set_spot (THIS->here_input ());
1490                 $$ = s;
1491         }
1492         ;
1493
1494
1495 direction_less_event:
1496         '['  {
1497
1498
1499 /*
1500
1501 TODO: should take all these defs out of the parser, adn make use
1502 configurable, i.e.
1503
1504
1505 (set-articulation '~ "trill")
1506
1507 */
1508                 Music * m = MY_MAKE_MUSIC ("NewBeamEvent");
1509                 m->set_spot (THIS->here_input());
1510                 m->set_mus_property ("span-direction" , gh_int2scm (START));
1511                 $$ = m;
1512         }
1513         | ']'  {
1514                 Music * m = MY_MAKE_MUSIC ("NewBeamEvent");
1515                 m->set_spot (THIS->here_input());
1516                 m->set_mus_property ("span-direction" , gh_int2scm (STOP));
1517                 $$ = m;
1518         }
1519         | '~' {
1520                 Music * m = MY_MAKE_MUSIC ("NewTieEvent");
1521                 m->set_spot (THIS->here_input());
1522                 $$ = m;
1523         }
1524         | close_event {
1525                 $$ = $1;
1526                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (START));
1527         }
1528         | open_event {
1529                 $$ = $1;
1530                 dynamic_cast<Music *> ($$)->set_mus_property ("span-direction", gh_int2scm (STOP))
1531         }
1532         | EVENT_IDENTIFIER      {
1533                 $$ = unsmob_music ($1);
1534         }
1535         | tremolo_type  {
1536                Music * a = MY_MAKE_MUSIC("TremoloEvent");
1537                a->set_spot (THIS->here_input ());
1538                a->set_mus_property ("tremolo-type", gh_int2scm ($1));
1539                $$ = a;
1540         }
1541         ;
1542
1543 direction_reqd_event:
1544         gen_text_def {
1545                 $$ = $1;
1546         }
1547         | script_abbreviation {
1548                 SCM s = THIS->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1549                 Music *a = MY_MAKE_MUSIC("ArticulationEvent");
1550                 if (gh_string_p (s))
1551                         a->set_mus_property ("articulation-type", s);
1552                 else THIS->parser_error (_ ("Expecting string as script definition"));
1553                 $$ = a;
1554         }
1555         ;
1556
1557 sup_quotes:
1558         '\'' {
1559                 $$ = 1;
1560         }
1561         | sup_quotes '\'' {
1562                 $$ ++;
1563         }
1564         ;
1565
1566 sub_quotes:
1567         ',' {
1568                 $$ = 1;
1569         }
1570         | sub_quotes ',' {
1571                 $$ ++ ;
1572         }
1573         ;
1574
1575 steno_pitch:
1576         NOTENAME_PITCH  {
1577                 $$ = $1;
1578         }
1579         | NOTENAME_PITCH sup_quotes     {
1580                 Pitch p = *unsmob_pitch ($1);
1581                 p = p.transposed (Pitch ($2,0,0));
1582                 $$ = p.smobbed_copy ();
1583         }
1584         | NOTENAME_PITCH sub_quotes      {
1585                 Pitch p =* unsmob_pitch ($1);
1586                 p = p.transposed (Pitch (-$2,0,0));
1587                 $$ = p.smobbed_copy ();
1588         }
1589         ;
1590
1591 /*
1592 ugh. duplication
1593 */
1594
1595 steno_tonic_pitch:
1596         TONICNAME_PITCH {
1597                 $$ = $1;
1598         }
1599         | TONICNAME_PITCH sup_quotes    {
1600                 Pitch p = *unsmob_pitch ($1);
1601                 p = p.transposed (Pitch ($2,0,0));
1602                 $$ = p.smobbed_copy ();
1603         }
1604         | TONICNAME_PITCH sub_quotes     {
1605                 Pitch p =* unsmob_pitch ($1);
1606
1607                 p = p.transposed (Pitch (-$2,0,0));
1608                 $$ = p.smobbed_copy ();
1609         }
1610         ;
1611
1612 pitch:
1613         steno_pitch {
1614                 $$ = $1;
1615         }
1616         | explicit_pitch {
1617                 $$ = $1;
1618         }
1619         ;
1620
1621 pitch_also_in_chords:
1622         pitch
1623         | steno_tonic_pitch
1624         ;
1625
1626 explicit_pitch:
1627         PITCH embedded_scm {
1628                 $$ = $2;
1629                 if (!unsmob_pitch ($2)) {
1630                         THIS->parser_error (_f ("Expecting musical-pitch value", 3));
1631                          $$ = Pitch ().smobbed_copy ();
1632                 }
1633         }
1634         ;
1635
1636 verbose_duration:
1637         DURATION embedded_scm   {
1638                 $$ = $2;
1639                 if (!unsmob_duration ($2))
1640                 {
1641                         THIS->parser_error (_ ("Must have duration object"));
1642                         $$ = Duration ().smobbed_copy ();
1643                 }
1644         }
1645         ;
1646
1647 extender_req:
1648         EXTENDER {
1649                 if (!THIS->lexer_->lyric_state_b ())
1650                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1651                 $$ = MY_MAKE_MUSIC("ExtenderEvent");
1652         }
1653         ;
1654
1655 hyphen_req:
1656         HYPHEN {
1657                 if (!THIS->lexer_->lyric_state_b ())
1658                         THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
1659                 $$ = MY_MAKE_MUSIC("HyphenEvent");
1660         }
1661         ;
1662
1663 close_event:
1664         '('     {
1665                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1666                 $$ = s;
1667                 s->set_spot (THIS->here_input());
1668         }
1669         | E_OPEN        {
1670                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1671                 $$ = s;
1672                 s->set_spot (THIS->here_input());
1673         }
1674         | E_SMALLER {
1675                 Music *s =MY_MAKE_MUSIC("CrescendoEvent");
1676                 $$ = s;
1677                 s->set_spot (THIS->here_input());
1678         }
1679         | E_BIGGER {
1680                 Music *s =MY_MAKE_MUSIC("DecrescendoEvent");
1681                 $$ = s;
1682                 s->set_spot (THIS->here_input());
1683         }
1684         ;
1685
1686
1687 open_event:
1688         E_EXCLAMATION   {
1689                 Music *s =  MY_MAKE_MUSIC("CrescendoEvent");
1690                 s->set_spot (THIS->here_input());
1691
1692                 $$ = s;
1693         }
1694         | ')'   {
1695                 Music * s= MY_MAKE_MUSIC("SlurEvent");
1696                 $$ = s;
1697                 s->set_spot (THIS->here_input());
1698
1699         }
1700         | E_CLOSE       {
1701                 Music * s= MY_MAKE_MUSIC("PhrasingSlurEvent");
1702                 $$ = s;
1703                 s->set_mus_property ("span-type", scm_makfrom0str ( "phrasing-slur"));
1704                 s->set_spot (THIS->here_input());
1705         }
1706         ;
1707
1708 gen_text_def:
1709         full_markup {
1710                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1711                 t->set_mus_property ("text", $1);
1712                 t->set_spot (THIS->here_input ());
1713                 $$ = t;
1714         }
1715         | string {
1716                 Music *t = MY_MAKE_MUSIC("TextScriptEvent");
1717                 t->set_mus_property ("text", make_simple_markup ($1));
1718                 t->set_spot (THIS->here_input ());
1719                 $$ = t;
1720
1721         }
1722         | DIGIT {
1723                 Music * t = MY_MAKE_MUSIC("FingerEvent");
1724                 t->set_mus_property ("digit",  gh_int2scm ($1));
1725                 t->set_spot (THIS->here_input ());
1726                 $$ = t;
1727         }
1728         ;
1729
1730 script_abbreviation:
1731         '^'             {
1732                 $$ = scm_makfrom0str ("Hat");
1733         }
1734         | '+'           {
1735                 $$ = scm_makfrom0str ("Plus");
1736         }
1737         | '-'           {
1738                 $$ = scm_makfrom0str ("Dash");
1739         }
1740         | '|'           {
1741                 $$ = scm_makfrom0str ("Bar");
1742         }
1743         | '>'           {
1744                 $$ = scm_makfrom0str ("Larger");
1745         }
1746         | '.'           {
1747                 $$ = scm_makfrom0str ("Dot");
1748         }
1749         | '_' {
1750                 $$ = scm_makfrom0str ("Underscore");
1751         }
1752         ;
1753
1754 script_dir:
1755         '_'     { $$ = DOWN; }
1756         | '^'   { $$ = UP; }
1757         | '-'   { $$ = CENTER; }
1758         ;
1759
1760
1761 absolute_pitch:
1762         steno_pitch     {
1763                 $$ = $1;
1764         }
1765         ;
1766
1767 duration_length:
1768         multiplied_duration {
1769                 $$ = $1;
1770         }
1771         | verbose_duration {
1772                 $$ = $1;
1773         }
1774         ;
1775
1776 optional_notemode_duration:
1777         {
1778                 Duration dd = THIS->default_duration_;
1779                 $$ = dd.smobbed_copy ();
1780
1781                 THIS->beam_check ($$);
1782         }
1783         | multiplied_duration   {
1784                 $$ = $1;
1785                 THIS->default_duration_ = *unsmob_duration ($$);
1786
1787                 THIS->beam_check ($$);
1788         }
1789         | verbose_duration {
1790                 $$ = $1;
1791                 THIS->default_duration_ = *unsmob_duration ($$);
1792         }
1793         ;
1794
1795 steno_duration:
1796         bare_unsigned dots              {
1797                 int l = 0;
1798                 if (!is_duration_b ($1))
1799                         THIS->parser_error (_f ("not a duration: %d", $1));
1800                 else
1801                         l =  intlog2 ($1);
1802
1803                 $$ = Duration (l, $2).smobbed_copy ();
1804         }
1805         | DURATION_IDENTIFIER dots      {
1806                 Duration *d =unsmob_duration ($1);
1807                 Duration k (d->duration_log (),d->dot_count () + $2);
1808
1809                 *d = k;
1810                 $$ = $1;
1811         }
1812         ;
1813
1814
1815
1816
1817 multiplied_duration:
1818         steno_duration {
1819                 $$ = $1;
1820         }
1821         | multiplied_duration '*' bare_unsigned {
1822                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1823         }
1824         | multiplied_duration '*' FRACTION {
1825                 Rational  m (gh_scm2int (ly_car ($3)), gh_scm2int (ly_cdr ($3)));
1826
1827                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1828         }
1829         ;
1830
1831 fraction:
1832         FRACTION { $$ = $1; }
1833         | UNSIGNED '/' UNSIGNED {
1834                 $$ = scm_cons (gh_int2scm ($1), gh_int2scm ($3));
1835         }
1836         ;
1837
1838 dots:
1839         /* empty */     {
1840                 $$ = 0;
1841         }
1842         | dots '.' {
1843                 $$ ++;
1844         }
1845         ;
1846
1847
1848 tremolo_type:
1849         ':'     {
1850                 $$ =0;
1851         }
1852         | ':' bare_unsigned {
1853                 if (!is_duration_b ($2))
1854                         THIS->parser_error (_f ("not a duration: %d", $2));
1855                 $$ = $2;
1856         }
1857         ;
1858
1859
1860
1861 /*****************************************************************
1862                 BASS FIGURES
1863 *****************************************************************/
1864 bass_number:
1865         DIGIT   {
1866                 $$ = scm_number_to_string (gh_int2scm ($1), gh_int2scm (10));
1867         }
1868         | UNSIGNED {
1869                 $$ = scm_number_to_string (gh_int2scm ($1), gh_int2scm (10));
1870         }
1871         | STRING { $$ =  $1 }
1872         ;
1873
1874 bass_mod:
1875         '-'     { $$ = -1; }
1876         | '+'   { $$ = 1; }
1877         | '!'   { $$ = 0; }
1878         ;
1879
1880 bass_figure:
1881         FIGURE_SPACE {
1882                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1883                 $$ = bfr->self_scm();
1884                 scm_gc_unprotect_object ($$);
1885         }
1886         | bass_number  {
1887                 Music *bfr = MY_MAKE_MUSIC("BassFigureEvent");
1888                 $$ = bfr->self_scm();
1889
1890                 bfr->set_mus_property ("figure", $1);
1891
1892                 scm_gc_unprotect_object ($$);
1893         }
1894         | bass_figure bass_mod {
1895                 Music *m = unsmob_music ($1);
1896                 if ($2) {
1897                         SCM salter =m->get_mus_property ("alteration");
1898                         int alter = gh_number_p ( salter) ? gh_scm2int (salter) : 0;
1899                         m->set_mus_property ("alteration",
1900                                 gh_int2scm (alter + $2));
1901                 } else {
1902                         m->set_mus_property ("alteration", gh_int2scm (0));
1903                 }
1904         }
1905         ;
1906
1907 br_bass_figure:
1908         '[' bass_figure {
1909                 $$ = $2;
1910                 unsmob_music ($$)->set_mus_property ("bracket-start", SCM_BOOL_T);
1911         }
1912         | bass_figure   {
1913                 $$ = $1;
1914         }
1915         | br_bass_figure ']' {
1916                 $$ = $1;
1917                 unsmob_music ($1)->set_mus_property ("bracket-stop", SCM_BOOL_T);
1918         }
1919         ;
1920
1921 figure_list:
1922         /**/            {
1923                 $$ = SCM_EOL;
1924         }
1925         | figure_list br_bass_figure {
1926                 $$ = scm_cons ($2, $1);
1927         }
1928         ;
1929
1930 figure_spec:
1931         FIGURE_OPEN figure_list FIGURE_CLOSE {
1932                 Music * m = MY_MAKE_MUSIC("EventChord");
1933                 $2 = scm_reverse_x ($2, SCM_EOL);
1934                 m->set_mus_property ("elements",  $2);
1935                 $$ = m->self_scm ();
1936         }
1937         ;
1938
1939
1940 optional_rest:
1941         /**/   { $$ = 0; }
1942         | REST { $$ = 1; }
1943         ;
1944
1945 simple_element:
1946         pitch exclamations questions optional_notemode_duration optional_rest {
1947
1948                 Input i = THIS->pop_spot ();
1949                 if (!THIS->lexer_->note_state_b ())
1950                         THIS->parser_error (_ ("Have to be in Note mode for notes"));
1951
1952                 Music *n = 0;
1953                 if ($5)
1954                         n =  MY_MAKE_MUSIC("RestEvent");
1955                 else
1956                         n =  MY_MAKE_MUSIC("NoteEvent");
1957
1958                 n->set_mus_property ("pitch", $1);
1959                 n->set_mus_property ("duration", $4);
1960
1961
1962                 if ($3 % 2)
1963                         n->set_mus_property ("cautionary", SCM_BOOL_T);
1964                 if ($2 % 2 || $3 % 2)
1965                         n->set_mus_property ("force-accidental", SCM_BOOL_T);
1966
1967                 Music *v = MY_MAKE_MUSIC("EventChord");
1968                 v->set_mus_property ("elements", scm_list_n (n->self_scm (), SCM_UNDEFINED));
1969                 scm_gc_unprotect_object (n->self_scm());
1970
1971                 v->set_spot (i);
1972                 n->set_spot (i);
1973                 $$ = v;
1974         }
1975         | figure_spec optional_notemode_duration {
1976                 Music * m = unsmob_music ($1);
1977                 Input i = THIS->pop_spot ();
1978                 m->set_spot (i);
1979                 for (SCM s = m->get_mus_property ("elements"); gh_pair_p (s); s = ly_cdr (s))
1980                 {
1981                         unsmob_music (ly_car (s))->set_mus_property ("duration", $2);
1982                 }
1983                 $$ = m;
1984         }
1985         | RESTNAME optional_notemode_duration           {
1986
1987                 Input i = THIS->pop_spot ();
1988                 Music * ev = 0;
1989                 if (ly_scm2string ($1) =="s") {
1990                         /* Space */
1991                         ev = MY_MAKE_MUSIC("SkipEvent");
1992                   }
1993                 else {
1994                         ev = MY_MAKE_MUSIC("RestEvent");
1995
1996                     }
1997                 ev->set_mus_property ("duration" ,$2);
1998                 ev->set_spot (i);
1999                 Music * velt = MY_MAKE_MUSIC("EventChord");
2000                 velt->set_mus_property ("elements", scm_list_n (ev->self_scm (),SCM_UNDEFINED));
2001                 velt->set_spot (i);
2002
2003                 $$ = velt;
2004         }
2005         | MULTI_MEASURE_REST optional_notemode_duration         {
2006                 THIS->pop_spot ();
2007
2008                 static SCM proc ;
2009                 if (!proc)
2010                         proc = scm_c_eval_string ("make-multi-measure-rest");
2011
2012                 SCM mus = scm_call_2 (proc, $2,
2013                         make_input (THIS->here_input()));
2014                 scm_gc_protect_object (mus);
2015                 $$ = unsmob_music (mus);
2016         }
2017         | STRING optional_notemode_duration     {
2018                 Input i = THIS->pop_spot ();
2019
2020                 Music * lreq = MY_MAKE_MUSIC("LyricEvent");
2021                 lreq->set_mus_property ("text", $1);
2022                 lreq->set_mus_property ("duration",$2);
2023                 lreq->set_spot (i);
2024                 Music * velt = MY_MAKE_MUSIC("EventChord");
2025                 velt->set_mus_property ("elements", scm_list_n (lreq->self_scm (), SCM_UNDEFINED));
2026
2027                 $$= velt;
2028         }
2029         | new_chord {
2030                 THIS->pop_spot ();
2031
2032                 if (!THIS->lexer_->chord_state_b ())
2033                         THIS->parser_error (_ ("Have to be in Chord mode for chords"));
2034                 $$ = unsmob_music ($1);
2035         }
2036         ;
2037
2038 new_chord:
2039         steno_tonic_pitch optional_notemode_duration   {
2040                 $$ = make_chord ($1, $2, SCM_EOL);
2041         }
2042         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2043                 SCM its = scm_reverse_x ($4, SCM_EOL);
2044                 $$ = make_chord ($1, $2, gh_cons ($3, its));
2045         }
2046         ;
2047
2048 chord_items:
2049         /**/ {
2050                 $$ = SCM_EOL;
2051         }
2052         | chord_items chord_item {
2053                 $$ = gh_cons ($2, $$);
2054         }
2055         ;
2056
2057 chord_separator:
2058         CHORD_COLON {
2059                 $$ = ly_symbol2scm ("chord-colon");
2060         }
2061         | CHORD_CARET {
2062                 $$ = ly_symbol2scm ("chord-caret");
2063         }
2064         | CHORD_SLASH steno_tonic_pitch {
2065                 $$ = scm_list_n (ly_symbol2scm ("chord-slash"), $2, SCM_UNDEFINED);
2066         }
2067         | CHORD_BASS steno_tonic_pitch {
2068                 $$ = scm_list_n (ly_symbol2scm ("chord-bass"), $2, SCM_UNDEFINED);
2069         }
2070         ;
2071
2072 chord_item:
2073         chord_separator {
2074                 $$ = $1;
2075         }
2076         | step_numbers {
2077                 $$ = scm_reverse_x ($1, SCM_EOL);
2078         }
2079         | CHORD_MODIFIER  {
2080                 $$ = $1;
2081         }
2082         ;
2083
2084 step_numbers:
2085         step_number { $$ = gh_cons ($1, SCM_EOL); }
2086         | step_numbers '.' step_number {
2087                 $$ = gh_cons ($3, $$);
2088         }
2089         ;
2090
2091 step_number:
2092         bare_unsigned {
2093                 $$ = make_chord_step ($1, 0);
2094         }
2095         | bare_unsigned '+' {
2096                 $$ = make_chord_step ($1, 1);
2097         }
2098         | bare_unsigned CHORD_MINUS {
2099                 $$ = make_chord_step ($1,-1);
2100         }
2101         ;
2102
2103 /*
2104         UTILITIES
2105
2106 TODO: should deprecate in favor of Scheme?
2107
2108  */
2109 number_expression:
2110         number_expression '+' number_term {
2111                 $$ = scm_sum ($1, $3);
2112         }
2113         | number_expression '-' number_term {
2114                 $$ = scm_difference ($1, $3);
2115         }
2116         | number_term
2117         ;
2118
2119 number_term:
2120         number_factor {
2121                 $$ = $1;
2122         }
2123         | number_factor '*' number_factor {
2124                 $$ = scm_product ($1, $3);
2125         }
2126         | number_factor '/' number_factor {
2127                 $$ = scm_divide ($1, $3);
2128         }
2129         ;
2130
2131 number_factor:
2132         '-'  number_factor { /* %prec UNARY_MINUS */
2133                 $$ = scm_difference ($2, SCM_UNDEFINED);
2134         }
2135         | bare_number
2136         ;
2137
2138
2139 bare_number:
2140         UNSIGNED        {
2141                 $$ = gh_int2scm ($1);
2142         }
2143         | REAL          {
2144                 $$ = $1;
2145         }
2146         | NUMBER_IDENTIFIER             {
2147                 $$ = $1;
2148         }
2149         | REAL NUMBER_IDENTIFIER        {
2150                 $$ = gh_double2scm (gh_scm2double ($1) * gh_scm2double ($2));
2151         }
2152         | UNSIGNED NUMBER_IDENTIFIER    {
2153                 $$ = gh_double2scm ($1 * gh_scm2double ($2));
2154         }
2155         ;
2156
2157
2158 bare_unsigned:
2159         UNSIGNED {
2160                         $$ = $1;
2161         }
2162         | DIGIT {
2163                 $$ = $1;
2164         }
2165         ;
2166
2167 bare_int:
2168         bare_number {
2169                 if (scm_integer_p ($1) == SCM_BOOL_T)
2170                 {
2171                         int k = gh_scm2int ($1);
2172                         $$ = k;
2173                 } else
2174                 {
2175                         THIS->parser_error (_ ("need integer number arg"));
2176                         $$ = 0;
2177                 }
2178         }
2179         | '-' bare_int {
2180                 $$ = -$2;
2181         }
2182         ;
2183
2184
2185 string:
2186         STRING          {
2187                 $$ = $1;
2188         }
2189         | STRING_IDENTIFIER     {
2190                 $$ = $1;
2191         }
2192         | string '+' string {
2193                 $$ = scm_string_append (scm_list_n ($1, $3, SCM_UNDEFINED));
2194         }
2195         ;
2196
2197
2198 exclamations:
2199                 { $$ = 0; }
2200         | exclamations '!'      { $$ ++; }
2201         ;
2202
2203 questions:
2204                 { $$ = 0; }
2205         | questions '?' { $$ ++; }
2206         ;
2207
2208
2209
2210 full_markup:
2211         MARKUP_IDENTIFIER {
2212                 $$ = $1;
2213         }
2214         | MARKUP
2215                 { THIS->lexer_->push_markup_state (); }
2216         markup
2217                 { $$ = $3;
2218                   THIS->lexer_->pop_state ();
2219                 }
2220         ;
2221
2222
2223 /*
2224 This should be done more dynamically if possible.
2225 */
2226 markup:
2227         STRING {
2228                 $$ = make_simple_markup ($1);
2229         }
2230         | MARKUP_HEAD_MARKUP0 markup {
2231                 $$ = scm_list_n ($1, $2, SCM_UNDEFINED);
2232         }
2233         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2234                 $$ = scm_list_n ($1, $2, $3, SCM_UNDEFINED);
2235         }
2236         | MARKUP_HEAD_SCM0_MARKUP1 SCM_T markup {
2237                 $$  = scm_list_n ($1, $2, $3, SCM_UNDEFINED);
2238         }
2239         | markup_line {
2240                 $$ = $1;
2241         }
2242         | MARKUP_HEAD_LIST0 markup_list {
2243                 $$ = scm_list_n ($1,$2, SCM_UNDEFINED);
2244         }
2245         | MARKUP_HEAD_SCM0 embedded_scm {
2246                 $$ = scm_list_n ($1, $2, SCM_UNDEFINED);
2247         }
2248         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm markup {
2249                 $$ = scm_list_n ($1, $2, $3, $4, SCM_UNDEFINED);
2250         }
2251         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2252                 $$ = scm_list_n ($1, $2, $3, $4, SCM_UNDEFINED);
2253         }
2254         | MARKUP_IDENTIFIER {
2255                 $$ = $1;
2256         }
2257
2258         ;
2259
2260 markup_list:
2261         CHORD_OPEN markup_list_body CHORD_CLOSE { $$ = scm_reverse_x ($2, SCM_EOL); }
2262         ;
2263
2264 markup_line:
2265         '{' markup_list_body '}' {
2266                 static SCM line ;
2267                 if (!line)
2268                         line = scm_c_eval_string ("line-markup");
2269
2270                 $$ = scm_list_n (line, scm_reverse_x ($2, SCM_EOL), SCM_UNDEFINED);
2271         }
2272         ;
2273
2274 markup_list_body:
2275         /**/ {  $$ = SCM_EOL; }
2276         | markup_list_body markup {
2277                 $$ = gh_cons ($2, $1) ;
2278         }
2279         ;
2280
2281
2282 %%
2283
2284 void
2285 My_lily_parser::set_yydebug (bool )
2286 {
2287 #if 0
2288         yydebug = 1;
2289 #endif
2290 }
2291
2292 extern My_lily_parser * current_parser;
2293
2294 void
2295 My_lily_parser::do_yyparse ()
2296 {
2297         current_parser = this;;
2298         yyparse ((void*)this);
2299 }
2300
2301
2302 /*
2303 Should make this optional?    It will also complain when you do
2304
2305         [s4]
2306
2307 which is entirely legitimate.
2308
2309 Or we can scrap it. Barchecks should detect wrong durations, and
2310 skipTypesetting speeds it up a lot.
2311 */
2312
2313 void
2314 My_lily_parser::beam_check (SCM dur)
2315 {
2316   Duration *d = unsmob_duration (dur);
2317   if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
2318     {
2319       Music * m = unsmob_music (last_beam_start_);
2320       m->origin ()->warning (_("Suspect duration found following this beam"));
2321     }
2322   last_beam_start_ = SCM_EOL;
2323 }
2324
2325
2326
2327 bool
2328 markup_p (SCM x)
2329 {
2330         return gh_pair_p (x)
2331                 && SCM_BOOL_F != scm_object_property (gh_car (x), ly_symbol2scm ("markup-signature"));
2332 }
2333
2334
2335 /*
2336
2337 It is a little strange to have this function in this file, but
2338 otherwise, we have to import music classes into the lexer.
2339
2340 */
2341 int
2342 My_lily_lexer::try_special_identifiers (SCM * destination, SCM sid)
2343 {
2344         if (gh_string_p (sid)) {
2345                 *destination = sid;
2346                 return STRING_IDENTIFIER;
2347         } else if (gh_number_p (sid)) {
2348                 *destination = sid;
2349                 return NUMBER_IDENTIFIER;
2350         } else if (unsmob_translator_def (sid)) {
2351                 *destination = unsmob_translator_def (sid)->clone_scm();
2352                 return TRANSLATOR_IDENTIFIER;
2353         } else if (unsmob_score (sid)) {
2354                 Score *sc =  new Score (*unsmob_score (sid));
2355                 *destination =sc->self_scm ();
2356                 return SCORE_IDENTIFIER;
2357         } else if (Music * mus =unsmob_music (sid)) {
2358                 *destination = unsmob_music (sid)->clone ()->self_scm();
2359                 unsmob_music (*destination)->
2360                         set_mus_property ("origin", make_input (last_input_));
2361                 return dynamic_cast<Event*> (mus)
2362                         ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2363         } else if (unsmob_duration (sid)) {
2364                 *destination = unsmob_duration (sid)->smobbed_copy();
2365                 return DURATION_IDENTIFIER;
2366         } else if (unsmob_music_output_def (sid)) {
2367                 Music_output_def *p = unsmob_music_output_def (sid);
2368                 p = p->clone ();
2369
2370                 *destination = p->self_scm();
2371                 return MUSIC_OUTPUT_DEF_IDENTIFIER;
2372         } else if (new_markup_p (sid)) {
2373                 *destination = sid;
2374                 return MARKUP_IDENTIFIER;
2375         }
2376
2377         return -1;
2378 }