lily/parser.yy

   1 /*
   2   parser.yy -- Bison/C++ parser for LilyPond
   3
   4   source file of the GNU LilyPond music typesetter
   5
   6   (c) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   7                  Jan Nieuwenhuizen <janneke@gnu.org>
   8 */
   9
  10 %{
  11
  12 #define YYDEBUG 1
  13 #define YYERROR_VERBOSE 1
  14 #define YYPARSE_PARAM my_lily_parser
  15 #define YYLEX_PARAM my_lily_parser
  16 #define PARSER ((Lily_parser *) my_lily_parser)
  17
  18 #define yyerror PARSER->parser_error
  19
  20 /* We use custom location type: Input objects */
  21 #define YYLTYPE Input
  22 #define YYLLOC_DEFAULT(Current,Rhs,N) \
  23         ((Current).set_location ((Rhs)[1], (Rhs)[N]))
  24
  25
  26 %}
  27
  28 /* We use SCMs to do strings, because it saves us the trouble of
  29 deleting them.  Let's hope that a stack overflow doesnt trigger a move
  30 of the parse stack onto the heap. */
  31
  32 %left PREC_TOP
  33 %left ADDLYRICS
  34 %left PREC_BOT
  35
  36 %expect 1
  37
  38 /* One shift/reduce problem
  39
  40 1.  \repeat
  41         \repeat .. \alternative
  42
  43     \repeat { \repeat .. \alternative }
  44
  45 or
  46
  47     \repeat { \repeat } \alternative
  48 */
  49
  50
  51 %pure_parser
  52 %locations
  53
  54
  55
  56 %{ // -*-Fundamental-*-
  57
  58 /*
  59 FIXME:
  60
  61    * The rules for who is protecting what are very shady.  Uniformise
  62      this.
  63
  64    * There are too many lexical modes?
  65 */
  66
  67 #include "config.hh"
  68
  69 #include <cctype>
  70 #include <cstdlib>
  71 #include <cstdio>
  72 using namespace std;
  73
  74 #include "book.hh"
  75 #include "context-def.hh"
  76 #include "dimensions.hh"
  77 #include "file-path.hh"
  78 #include "input.hh"
  79 #include "international.hh"
  80 #include "lily-guile.hh"
  81 #include "lily-lexer.hh"
  82 #include "lily-parser.hh"
  83 #include "main.hh"
  84 #include "misc.hh"
  85 #include "music.hh"
  86 #include "music.hh"
  87 #include "output-def.hh"
  88 #include "paper-book.hh"
  89 #include "program-option.hh"
  90 #include "scm-hash.hh"
  91 #include "score.hh"
  92 #include "text-interface.hh"
  93 #include "warn.hh"
  94
  95 %}
  96
  97
  98 %union {
  99         Book *book;
 100         Output_def *outputdef;
 101         SCM scm;
 102         std::string *string;
 103         Music *music;
 104         Score *score;
 105         int i;
 106 }
 107
 108 %{
 109
 110 #define MY_MAKE_MUSIC(x, spot)  make_music_with_input (ly_symbol2scm (x), spot)
 111
 112 /* ES TODO:
 113 - Don't use lily module, create a new module instead.
 114 - delay application of the function
 115 */
 116 #define LOWLEVEL_MAKE_SYNTAX(proc, args)        \
 117   scm_apply_0 (proc, args)
 118 /* Syntactic Sugar. */
 119 #define MAKE_SYNTAX(name, location, ...)        \
 120   LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant (name), scm_list_n (PARSER->self_scm (), make_input (location), __VA_ARGS__, SCM_UNDEFINED));
 121
 122 SCM get_next_unique_context_id ();
 123 SCM get_next_unique_lyrics_context_id ();
 124
 125 #undef _
 126 #if !HAVE_GETTEXT
 127 #define _(x) x
 128 #else
 129 #include <libintl.h>
 130 #define _(x) gettext (x)
 131 #endif
 132
 133
 134 static Music *make_music_with_input (SCM name, Input where);
 135 SCM make_music_relative (Pitch start, SCM music, Input loc);
 136 SCM run_music_function (Lily_parser *, SCM expr);
 137 SCM get_first_context_id (SCM type, Music *m);
 138 SCM make_chord_elements (SCM pitch, SCM dur, SCM modification_list);
 139 SCM make_chord_step (int step, Rational alter);
 140 SCM make_simple_markup (SCM a);
 141 bool is_duration (int t);
 142 bool is_regular_identifier (SCM id);
 143 bool ly_input_procedure_p (SCM x);
 144 int yylex (YYSTYPE *s, YYLTYPE *loc, void *v);
 145 void set_music_properties (Music *p, SCM a);
 146
 147 %}
 148
 149 /* The third option is an alias that will be used to display the
 150    syntax error.  Bison CVS now correctly handles backslash escapes.
 151
 152    FIXME: Bison needs to translate some of these, eg, STRING.
 153
 154 */
 155
 156 /* Keyword tokens with plain escaped name.  */
 157 %token ACCEPTS "\\accepts"
 158 %token ADDLYRICS "\\addlyrics"
 159 %token ALIAS "\\alias"
 160 %token ALTERNATIVE "\\alternative"
 161 %token BOOK "\\book"
 162 %token BOOKPART "\\bookpart"
 163 %token CHANGE "\\change"
 164 %token CHORDMODE "\\chordmode"
 165 %token CHORDS "\\chords"
 166 %token CONSISTS "\\consists"
 167 %token CONTEXT "\\context"
 168 %token DEFAULT "\\default"
 169 %token DEFAULTCHILD "\\defaultchild"
 170 %token DENIES "\\denies"
 171 %token DESCRIPTION "\\description"
 172 %token DRUMMODE "\\drummode"
 173 %token DRUMS "\\drums"
 174 %token FIGUREMODE "\\figuremode"
 175 %token FIGURES "\\figures"
 176 %token GROBDESCRIPTIONS "\\grobdescriptions"
 177 %token HEADER "\\header"
 178 %token INVALID "\\invalid"
 179 %token KEY "\\key"
 180 %token LAYOUT "\\layout"
 181 %token LYRICMODE "\\lyricmode"
 182 %token LYRICS "\\lyrics"
 183 %token LYRICSTO "\\lyricsto"
 184 %token MARK "\\mark"
 185 %token MARKUP "\\markup"
 186 %token MARKUPLINES "\\markuplines"
 187 %token MIDI "\\midi"
 188 %token NAME "\\name"
 189 %token NOTEMODE "\\notemode"
 190 %token OBJECTID "\\objectid"
 191 %token OCTAVE "\\octave"
 192 %token ONCE "\\once"
 193 %token OVERRIDE "\\override"
 194 %token PAPER "\\paper"
 195 %token PARTIAL "\\partial"
 196 %token RELATIVE "\\relative"
 197 %token REMOVE "\\remove"
 198 %token REPEAT "\\repeat"
 199 %token REST "\\rest"
 200 %token REVERT "\\revert"
 201 %token SCORE "\\score"
 202 %token SEQUENTIAL "\\sequential"
 203 %token SET "\\set"
 204 %token SIMULTANEOUS "\\simultaneous"
 205 %token SKIP "\\skip"
 206 %token TEMPO "\\tempo"
 207 %token TIMES "\\times"
 208 %token TRANSPOSE "\\transpose"
 209 %token TYPE "\\type"
 210 %token UNSET "\\unset"
 211 %token WITH "\\with"
 212
 213 /* Keyword token exceptions.  */
 214 %token TIME_T "\\time"
 215 %token NEWCONTEXT "\\new"
 216
 217
 218 /* Other string tokens.  */
 219
 220 %token CHORD_BASS "/+"
 221 %token CHORD_CARET "^"
 222 %token CHORD_COLON ":"
 223 %token CHORD_MINUS "-"
 224 %token CHORD_SLASH "/"
 225 %token ANGLE_OPEN "<"
 226 %token ANGLE_CLOSE ">"
 227 %token DOUBLE_ANGLE_OPEN "<<"
 228 %token DOUBLE_ANGLE_CLOSE ">>"
 229 %token E_BACKSLASH "\\"
 230 %token E_ANGLE_CLOSE "\\>"
 231 %token E_CHAR "\\C[haracter]"
 232 %token E_CLOSE "\\)"
 233 %token E_EXCLAMATION "\\!"
 234 %token E_BRACKET_OPEN "\\["
 235 %token E_OPEN "\\("
 236 %token E_BRACKET_CLOSE "\\]"
 237 %token E_ANGLE_OPEN "\\<"
 238 %token E_PLUS "\\+"
 239 %token E_TILDE "\\~"
 240 %token EXTENDER "__"
 241
 242 /*
 243 If we give names, Bison complains.
 244 */
 245 %token FIGURE_CLOSE /* "\\>" */
 246 %token FIGURE_OPEN /* "\\<" */
 247 %token FIGURE_SPACE "_"
 248 %token HYPHEN "--"
 249
 250 %token CHORDMODIFIERS
 251 %token LYRIC_MARKUP
 252 %token MULTI_MEASURE_REST
 253
 254
 255 %token <i> DIGIT
 256 %token <i> E_UNSIGNED
 257 %token <i> UNSIGNED
 258
 259 /* Artificial tokens, for more generic function syntax */
 260 %token <i> EXPECT_MARKUP;
 261 %token <i> EXPECT_MUSIC;
 262 %token <i> EXPECT_SCM;
 263 /* After the last argument. */
 264 %token <i> EXPECT_NO_MORE_ARGS;
 265
 266 %token <scm> BOOK_IDENTIFIER
 267 %token <scm> CHORDMODIFIER_PITCH
 268 %token <scm> CHORD_MODIFIER
 269 %token <scm> CONTEXT_DEF_IDENTIFIER
 270 %token <scm> DRUM_PITCH
 271 %token <scm> DURATION_IDENTIFIER
 272 %token <scm> EVENT_IDENTIFIER
 273 %token <scm> FRACTION
 274 %token <scm> LYRICS_STRING
 275 %token <scm> LYRIC_MARKUP_IDENTIFIER
 276 %token <scm> MARKUP_HEAD_EMPTY
 277 %token <scm> MARKUP_HEAD_LIST0
 278 %token <scm> MARKUP_HEAD_MARKUP0
 279 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 280 %token <scm> MARKUP_HEAD_SCM0
 281 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 282 %token <scm> MARKUP_HEAD_SCM0_SCM1
 283 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 284 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2_MARKUP3
 285 %token <scm> MARKUP_HEAD_SCM0_MARKUP1_MARKUP2
 286 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 287 %token <scm> MARKUP_LIST_HEAD_EMPTY
 288 %token <scm> MARKUP_LIST_HEAD_LIST0
 289 %token <scm> MARKUP_LIST_HEAD_SCM0
 290 %token <scm> MARKUP_LIST_HEAD_SCM0_LIST1
 291 %token <scm> MARKUP_LIST_HEAD_SCM0_SCM1_LIST2
 292 %token <scm> MARKUP_IDENTIFIER
 293 %token <scm> MUSIC_FUNCTION
 294 %token <scm> MUSIC_IDENTIFIER
 295 %token <scm> NOTENAME_PITCH
 296 %token <scm> NUMBER_IDENTIFIER
 297 %token <scm> OUTPUT_DEF_IDENTIFIER
 298 %token <scm> REAL
 299 %token <scm> RESTNAME
 300 %token <scm> SCM_IDENTIFIER
 301 %token <scm> SCM_TOKEN
 302 %token <scm> SCORE_IDENTIFIER
 303 %token <scm> STRING
 304 %token <scm> STRING_IDENTIFIER
 305 %token <scm> TONICNAME_PITCH
 306
 307
 308 %type <book> book_block
 309 %type <book> book_body
 310 %type <book> bookpart_block
 311 %type <book> bookpart_body
 312
 313 %type <i> bare_unsigned
 314 %type <scm> figured_bass_alteration
 315 %type <i> dots
 316 %type <i> exclamations
 317 %type <i> optional_rest
 318 %type <i> questions
 319 %type <i> script_dir
 320 %type <i> sub_quotes
 321 %type <i> sup_quotes
 322 %type <i> tremolo_type
 323
 324 /* Music */
 325 %type <scm> composite_music
 326 %type <scm> grouped_music_list
 327 %type <scm> music
 328 %type <scm> prefix_composite_music
 329 %type <scm> repeated_music
 330 %type <scm> sequential_music
 331 %type <scm> simple_music
 332 %type <scm> simultaneous_music
 333 %type <scm> chord_body
 334 %type <scm> chord_body_element
 335 %type <scm> command_element
 336 %type <scm> command_event
 337 %type <scm> context_change
 338 %type <scm> direction_less_event
 339 %type <scm> direction_reqd_event
 340 %type <scm> event_chord
 341 %type <scm> gen_text_def
 342 %type <scm> music_property_def
 343 %type <scm> note_chord_element
 344 %type <scm> post_event
 345 %type <scm> re_rhythmed_music
 346 %type <scm> relative_music
 347 %type <scm> simple_element
 348 %type <scm> simple_music_property_def
 349 %type <scm> string_number_event
 350 %type <scm> tempo_event
 351
 352 %type <outputdef> output_def_body
 353 %type <outputdef> output_def_head
 354 %type <outputdef> output_def_head_with_mode_switch
 355 %type <outputdef> output_def
 356 %type <outputdef> paper_block
 357
 358 %type <scm> alternative_music
 359 %type <scm> generic_prefix_music_scm
 360 %type <scm> music_list
 361 %type <scm> absolute_pitch
 362 %type <scm> assignment_id
 363 %type <scm> bare_number
 364 %type <scm> unsigned_number
 365 %type <scm> bass_figure
 366 %type <scm> figured_bass_modification
 367 %type <scm> br_bass_figure
 368 %type <scm> bass_number
 369 %type <scm> chord_body_elements
 370 %type <scm> chord_item
 371 %type <scm> chord_items
 372 %type <scm> chord_separator
 373 %type <scm> context_def_mod
 374 %type <scm> context_def_spec_block
 375 %type <scm> context_def_spec_body
 376 %type <scm> context_mod
 377 %type <scm> context_mod_list
 378 %type <scm> context_prop_spec
 379 %type <scm> direction_less_char
 380 %type <scm> duration_length
 381 %type <scm> embedded_scm
 382 %type <scm> figure_list
 383 %type <scm> figure_spec
 384 %type <scm> fraction
 385 %type <scm> full_markup
 386 %type <scm> full_markup_list
 387 %type <scm> function_scm_argument
 388 %type <scm> function_arglist
 389 %type <scm> function_arglist_music_last
 390 %type <scm> function_arglist_nonmusic_last
 391 %type <scm> function_arglist_nonmusic
 392 %type <scm> identifier_init
 393 %type <scm> lilypond_header
 394 %type <scm> lilypond_header_body
 395 %type <scm> lyric_element
 396 %type <scm> lyric_markup
 397 %type <scm> markup
 398 %type <scm> markup_braced_list
 399 %type <scm> markup_braced_list_body
 400 %type <scm> markup_composed_list
 401 %type <scm> markup_command_list
 402 %type <scm> markup_head_1_item
 403 %type <scm> markup_head_1_list
 404 %type <scm> markup_list
 405 %type <scm> markup_top
 406 %type <scm> mode_changing_head
 407 %type <scm> mode_changing_head_with_context
 408 %type <scm> multiplied_duration
 409 %type <scm> music_function_identifier_musicless_prefix
 410 %type <scm> music_function_event
 411 %type <scm> music_function_chord_body
 412 %type <scm> new_chord
 413 %type <scm> new_lyrics
 414 %type <scm> number_expression
 415 %type <scm> number_factor
 416 %type <scm> number_term
 417 %type <scm> object_id_setting
 418 %type <scm> octave_check
 419 %type <scm> optional_context_mod
 420 %type <scm> optional_id
 421 %type <scm> optional_notemode_duration
 422 %type <scm> pitch
 423 %type <scm> pitch_also_in_chords
 424 %type <scm> post_events
 425 %type <scm> property_operation
 426 %type <scm> property_path property_path_revved
 427 %type <scm> scalar
 428 %type <scm> script_abbreviation
 429 %type <scm> simple_chord_elements
 430 %type <scm> simple_markup
 431 %type <scm> simple_string
 432 %type <scm> steno_duration
 433 %type <scm> steno_pitch
 434 %type <scm> steno_tonic_pitch
 435 %type <scm> step_number
 436 %type <scm> step_numbers
 437 %type <scm> string
 438
 439 %type <score> score_block
 440 %type <score> score_body
 441
 442
 443 %left '-' '+'
 444
 445 /* We don't assign precedence to / and *, because we might need varied
 446 prec levels in different prods */
 447
 448 %left UNARY_MINUS
 449
 450 %%
 451
 452 lilypond:       /* empty */
 453         | lilypond toplevel_expression {
 454         }
 455         | lilypond assignment {
 456         }
 457         | lilypond error {
 458                 PARSER->error_level_ = 1;
 459         }
 460         | lilypond INVALID      {
 461                 PARSER->error_level_ = 1;
 462         }
 463         ;
 464
 465
 466 object_id_setting:
 467         OBJECTID STRING { $$ = $2; }
 468         ;
 469
 470 toplevel_expression:
 471         lilypond_header {
 472                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$defaultheader"), $1);
 473         }
 474         | book_block {
 475                 Book *book = $1;
 476                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-book-handler");
 477                 scm_call_2 (proc, PARSER->self_scm (), book->self_scm ());
 478                 book->unprotect ();
 479         }
 480         | bookpart_block {
 481                 Book *bookpart = $1;
 482                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-bookpart-handler");
 483                 scm_call_2 (proc, PARSER->self_scm (), bookpart->self_scm ());
 484                 bookpart->unprotect ();
 485         }
 486         | score_block {
 487                 Score *score = $1;
 488
 489                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-score-handler");
 490                 scm_call_2 (proc, PARSER->self_scm (), score->self_scm ());
 491                 score->unprotect ();
 492         }
 493         | composite_music {
 494                 Music *music = unsmob_music ($1);
 495                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-music-handler");
 496                 scm_call_2 (proc, PARSER->self_scm (), music->self_scm ());
 497         }
 498         | full_markup {
 499                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-text-handler");
 500                 scm_call_2 (proc, PARSER->self_scm (), scm_list_1 ($1));
 501         }
 502         | full_markup_list {
 503                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-text-handler");
 504                 scm_call_2 (proc, PARSER->self_scm (), $1);
 505         }
 506         | output_def {
 507                 SCM id = SCM_EOL;
 508                 Output_def * od = $1;
 509
 510                 if ($1->c_variable ("is-paper") == SCM_BOOL_T)
 511                         id = ly_symbol2scm ("$defaultpaper");
 512                 else if ($1->c_variable ("is-midi") == SCM_BOOL_T)
 513                         id = ly_symbol2scm ("$defaultmidi");
 514                 else if ($1->c_variable ("is-layout") == SCM_BOOL_T)
 515                         id = ly_symbol2scm ("$defaultlayout");
 516
 517                 PARSER->lexer_->set_identifier (id, od->self_scm ());
 518                 od->unprotect();
 519         }
 520         ;
 521
 522 embedded_scm:
 523         SCM_TOKEN
 524         | SCM_IDENTIFIER
 525         ;
 526
 527
 528 lilypond_header_body:
 529         {
 530                 $$ = get_header (PARSER);
 531                 PARSER->lexer_->add_scope ($$);
 532         }
 533         | lilypond_header_body assignment  {
 534
 535         }
 536         ;
 537
 538 lilypond_header:
 539         HEADER '{' lilypond_header_body '}'     {
 540                 $$ = PARSER->lexer_->remove_scope ();
 541         }
 542         ;
 543
 544 /*
 545         DECLARATIONS
 546 */
 547 assignment_id:
 548         STRING          { $$ = $1; }
 549         | LYRICS_STRING { $$ = $1; }
 550         ;
 551
 552 assignment:
 553         assignment_id '=' identifier_init  {
 554                 PARSER->lexer_->set_identifier ($1, $3);
 555
 556 /*
 557  TODO: devise standard for protection in parser.
 558
 559   The parser stack lives on the C-stack, which means that
 560 all objects can be unprotected as soon as they're here.
 561
 562 */
 563         }
 564         | embedded_scm { }
 565         ;
 566
 567
 568 identifier_init:
 569         score_block {
 570                 $$ = $1->self_scm ();
 571                 $1->unprotect ();
 572         }
 573         | book_block {
 574                 $$ = $1->self_scm ();
 575                 $1->unprotect ();
 576         }
 577         | bookpart_block {
 578                 $$ = $1->self_scm ();
 579                 $1->unprotect ();
 580         }
 581         | output_def {
 582                 $$ = $1->self_scm ();
 583                 $1->unprotect ();
 584         }
 585         | context_def_spec_block {
 586                 $$ = $1;
 587         }
 588         | music  {
 589                 /* Hack: Create event-chord around standalone events.
 590                    Prevents the identifier from being interpreted as a post-event. */
 591                 Music *mus = unsmob_music ($1);
 592                 bool is_event = mus &&
 593                         (scm_memq (ly_symbol2scm ("event"), mus->get_property ("types"))
 594                                 != SCM_BOOL_F);
 595                 if (!is_event)
 596                         $$ = $1;
 597                 else
 598                         $$ = MAKE_SYNTAX ("event-chord", @$, scm_list_1 ($1));
 599         }
 600         | post_event {
 601                 $$ = $1;
 602         }
 603         | number_expression {
 604                 $$ = $1;
 605         }
 606         | string {
 607                 $$ = $1;
 608         }
 609         | embedded_scm {
 610                 $$ = $1;
 611         }
 612         | full_markup {
 613                 $$ = $1;
 614         }
 615         | DIGIT {
 616                 $$ = scm_from_int ($1);
 617         }
 618         ;
 619
 620 context_def_spec_block:
 621         CONTEXT '{' context_def_spec_body '}'
 622                 {
 623                 $$ = $3;
 624         }
 625         ;
 626
 627 context_def_spec_body:
 628         /**/ {
 629                 $$ = Context_def::make_scm ();
 630                 unsmob_context_def ($$)->origin ()->set_spot (@$);
 631         }
 632         | CONTEXT_DEF_IDENTIFIER {
 633                 $$ = $1;
 634                 unsmob_context_def ($$)->origin ()->set_spot (@$);
 635         }
 636         | context_def_spec_body GROBDESCRIPTIONS embedded_scm {
 637                 Context_def*td = unsmob_context_def ($$);
 638
 639                 for (SCM p = $3; scm_is_pair (p); p = scm_cdr (p)) {
 640                         SCM tag = scm_caar (p);
 641
 642                         /* TODO: should make new tag "grob-definition" ? */
 643                         td->add_context_mod (scm_list_3 (ly_symbol2scm ("assign"),
 644                                                         tag, scm_cons (scm_cdar (p), SCM_EOL)));
 645                 }
 646         }
 647         | context_def_spec_body context_mod {
 648                 unsmob_context_def ($$)->add_context_mod ($2);
 649         }
 650         ;
 651
 652
 653
 654 book_block:
 655         BOOK '{' book_body '}'  {
 656                 $$ = $3;
 657                 pop_paper (PARSER);
 658                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-book"), SCM_BOOL_F);
 659         }
 660         ;
 661
 662 /* FIXME:
 663    * Use 'handlers' like for toplevel-* stuff?
 664    * grok \layout and \midi?  */
 665 book_body:
 666         {
 667                 $$ = new Book;
 668                 init_papers (PARSER);
 669                 $$->origin ()->set_spot (@$);
 670                 $$->paper_ = dynamic_cast<Output_def*> (unsmob_output_def (PARSER->lexer_->lookup_identifier ("$defaultpaper"))->clone ());
 671                 $$->paper_->unprotect ();
 672                 push_paper (PARSER, $$->paper_);
 673                 $$->header_ = PARSER->lexer_->lookup_identifier ("$defaultheader");
 674                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-book"), $$->self_scm ());
 675                 PARSER->lexer_->set_identifier (ly_symbol2scm ("book-output-suffix"), SCM_BOOL_F);
 676                 PARSER->lexer_->set_identifier (ly_symbol2scm ("book-filename"), SCM_BOOL_F);
 677         }
 678         | BOOK_IDENTIFIER {
 679                 $$ = unsmob_book ($1);
 680                 $$->protect ();
 681                 $$->origin ()->set_spot (@$);
 682                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-book"), $1);
 683         }
 684         | book_body paper_block {
 685                 $$->paper_ = $2;
 686                 $2->unprotect ();
 687                 set_paper (PARSER, $2);
 688         }
 689         | book_body bookpart_block {
 690                 Book *bookpart = $2;
 691                 SCM proc = PARSER->lexer_->lookup_identifier ("book-bookpart-handler");
 692                 scm_call_2 (proc, $$->self_scm (), bookpart->self_scm ());
 693                 bookpart->unprotect ();
 694         }
 695         | book_body score_block {
 696                 Score *score = $2;
 697                 SCM proc = PARSER->lexer_->lookup_identifier ("book-score-handler");
 698                 scm_call_2 (proc, $$->self_scm (), score->self_scm ());
 699                 score->unprotect ();
 700         }
 701         | book_body composite_music {
 702                 Music *music = unsmob_music ($2);
 703                 SCM proc = PARSER->lexer_->lookup_identifier ("book-music-handler");
 704                 scm_call_3 (proc, PARSER->self_scm (), $$->self_scm (), music->self_scm ());
 705         }
 706         | book_body full_markup {
 707                 SCM proc = PARSER->lexer_->lookup_identifier ("book-text-handler");
 708                 scm_call_2 (proc, $$->self_scm (), scm_list_1 ($2));
 709         }
 710         | book_body full_markup_list {
 711                 SCM proc = PARSER->lexer_->lookup_identifier ("book-text-handler");
 712                 scm_call_2 (proc, $$->self_scm (), $2);
 713         }
 714         | book_body lilypond_header {
 715                 $$->header_ = $2;
 716         }
 717         | book_body error {
 718                 $$->paper_ = 0;
 719                 $$->scores_ = SCM_EOL;
 720                 $$->bookparts_ = SCM_EOL;
 721         }
 722         | book_body object_id_setting {
 723                 $$->user_key_ = ly_scm2string ($2);
 724         }
 725         ;
 726
 727 bookpart_block:
 728         BOOKPART '{' bookpart_body '}' {
 729                 $$ = $3;
 730                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), SCM_BOOL_F);
 731         }
 732         ;
 733
 734 bookpart_body:
 735         {
 736                 $$ = new Book;
 737                 $$->origin ()->set_spot (@$);
 738                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), $$->self_scm ());
 739         }
 740         | BOOK_IDENTIFIER {
 741                 $$ = unsmob_book ($1);
 742                 $$->protect ();
 743                 $$->origin ()->set_spot (@$);
 744                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), $1);
 745         }
 746         | bookpart_body paper_block {
 747                 $$->paper_ = $2;
 748                 $2->unprotect ();
 749         }
 750         | bookpart_body score_block {
 751                 Score *score = $2;
 752                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-score-handler");
 753                 scm_call_2 (proc, $$->self_scm (), score->self_scm ());
 754                 score->unprotect ();
 755         }
 756         | bookpart_body composite_music {
 757                 Music *music = unsmob_music ($2);
 758                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-music-handler");
 759                 scm_call_3 (proc, PARSER->self_scm (), $$->self_scm (), music->self_scm ());
 760         }
 761         | bookpart_body full_markup {
 762                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-text-handler");
 763                 scm_call_2 (proc, $$->self_scm (), scm_list_1 ($2));
 764         }
 765         | bookpart_body full_markup_list {
 766                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-text-handler");
 767                 scm_call_2 (proc, $$->self_scm (), $2);
 768         }
 769         | bookpart_body lilypond_header {
 770                 $$->header_ = $2;
 771         }
 772         | bookpart_body error {
 773                 $$->paper_ = 0;
 774                 $$->scores_ = SCM_EOL;
 775         }
 776         | bookpart_body object_id_setting {
 777                 $$->user_key_ = ly_scm2string ($2);
 778         }
 779         ;
 780
 781 score_block:
 782         SCORE '{' score_body '}'        {
 783                 $$ = $3;
 784         }
 785         ;
 786
 787 score_body:
 788         music {
 789                 SCM m = $1;
 790                 SCM scorify = ly_lily_module_constant ("scorify-music");
 791                 SCM score = scm_call_2 (scorify, m, PARSER->self_scm ());
 792
 793                 // pass ownernship to C++ again.
 794                 $$ = unsmob_score (score);
 795                 $$->protect ();
 796                 $$->origin ()->set_spot (@$);
 797         }
 798         | SCORE_IDENTIFIER {
 799                 $$ = unsmob_score ($1);
 800                 $$->protect ();
 801                 $$->origin ()->set_spot (@$);
 802         }
 803         | score_body object_id_setting {
 804                 $$->user_key_ = ly_scm2string ($2);
 805         }
 806         | score_body lilypond_header    {
 807                 $$->set_header ($2);
 808         }
 809         | score_body output_def {
 810                 if ($2->lookup_variable (ly_symbol2scm ("is-paper")) == SCM_BOOL_T)
 811                 {
 812                         PARSER->parser_error (@2, _("\\paper cannot be used in \\score, use \\layout instead"));
 813
 814                 }
 815                 else
 816                 {
 817                         $$->add_output_def ($2);
 818                 }
 819                 $2->unprotect ();
 820         }
 821         | score_body error {
 822                 $$->error_found_ = true;
 823         }
 824         ;
 825
 826
 827 /*
 828         OUTPUT DEF
 829 */
 830
 831 paper_block:
 832         output_def {
 833                 $$ = $1;
 834                 if ($$->lookup_variable (ly_symbol2scm ("is-paper")) != SCM_BOOL_T)
 835                 {
 836                         PARSER->parser_error (@1, _ ("need \\paper for paper block"));
 837                         $1->unprotect ();
 838                         $$ = get_paper (PARSER);
 839                 }
 840         }
 841         ;
 842
 843
 844 output_def:
 845         output_def_body '}' {
 846                 $$ = $1;
 847
 848                 PARSER->lexer_->remove_scope ();
 849                 PARSER->lexer_->pop_state ();
 850         }
 851         ;
 852
 853 output_def_head:
 854         PAPER {
 855                 $$ = get_paper (PARSER);
 856                 $$->input_origin_ = @$;
 857                 PARSER->lexer_->add_scope ($$->scope_);
 858         }
 859         | MIDI    {
 860                 Output_def *p = get_midi (PARSER);
 861                 $$ = p;
 862                 PARSER->lexer_->add_scope (p->scope_);
 863         }
 864         | LAYOUT        {
 865                 Output_def *p = get_layout (PARSER);
 866
 867                 PARSER->lexer_->add_scope (p->scope_);
 868                 $$ = p;
 869         }
 870         ;
 871
 872 output_def_head_with_mode_switch:
 873         output_def_head {
 874                 PARSER->lexer_->push_initial_state ();
 875                 $$ = $1;
 876         }
 877         ;
 878
 879 output_def_body:
 880         output_def_head_with_mode_switch '{' {
 881                 $$ = $1;
 882                 $$->input_origin_.set_spot (@$);
 883         }
 884         | output_def_head_with_mode_switch '{' OUTPUT_DEF_IDENTIFIER    {
 885                 $1->unprotect ();
 886
 887                 Output_def *o = unsmob_output_def ($3);
 888                 o->input_origin_.set_spot (@$);
 889                 $$ = o;
 890                 $$->protect ();
 891                 PARSER->lexer_->remove_scope ();
 892                 PARSER->lexer_->add_scope (o->scope_);
 893         }
 894         | output_def_body assignment  {
 895
 896         }
 897         | output_def_body context_def_spec_block        {
 898                 assign_context_def ($$, $2);
 899         }
 900         | output_def_body error {
 901
 902         }
 903         ;
 904
 905 tempo_event:
 906         TEMPO steno_duration '=' bare_unsigned  {
 907                 $$ = MAKE_SYNTAX ("tempo", @$, SCM_BOOL_F, $2, scm_int2num ($4));
 908         }
 909         | TEMPO string steno_duration '=' bare_unsigned {
 910                 $$ = MAKE_SYNTAX ("tempo", @$, make_simple_markup($2), $3, scm_int2num ($5));
 911         }
 912         | TEMPO full_markup steno_duration '=' bare_unsigned    {
 913                 $$ = MAKE_SYNTAX ("tempo", @$, $2, $3, scm_int2num ($5));
 914         }
 915         | TEMPO string {
 916                 $$ = MAKE_SYNTAX ("tempoText", @$, make_simple_markup($2) );
 917         }
 918         | TEMPO full_markup {
 919                 $$ = MAKE_SYNTAX ("tempoText", @$, $2 );
 920         }
 921         ;
 922
 923 /*
 924 The representation of a  list is the
 925
 926   (LIST . LAST-CONS)
 927
 928  to have efficient append.  */
 929
 930 music_list:
 931         /* empty */ {
 932                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 933         }
 934         | music_list music {
 935                 SCM s = $$;
 936                 SCM c = scm_cons ($2, SCM_EOL);
 937
 938                 if (scm_is_pair (scm_cdr (s)))
 939                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 940                 else
 941                         scm_set_car_x (s, c); /* set first cons */
 942                 scm_set_cdr_x (s, c);  /* remember last cell */
 943         }
 944         | music_list embedded_scm {
 945
 946         }
 947         | music_list error {
 948                 Music *m = MY_MAKE_MUSIC("Music", @$);
 949                 // ugh. code dup
 950                 m->set_property ("error-found", SCM_BOOL_T);
 951                 SCM s = $$;
 952                 SCM c = scm_cons (m->self_scm (), SCM_EOL);
 953                 m->unprotect (); /* UGH */
 954
 955                 if (scm_is_pair (scm_cdr (s)))
 956                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 957                 else
 958                         scm_set_car_x (s, c); /* set first cons */
 959                 scm_set_cdr_x (s, c);  /* remember last cell */
 960         }
 961         ;
 962
 963 music:
 964         simple_music
 965         | composite_music
 966         ;
 967
 968 alternative_music:
 969         /* empty */ {
 970                 $$ = SCM_EOL;
 971         }
 972         | ALTERNATIVE '{' music_list '}' {
 973                 $$ = scm_car ($3);
 974         }
 975         ;
 976
 977
 978 repeated_music:
 979         REPEAT simple_string unsigned_number music alternative_music
 980         {
 981                 $$ = MAKE_SYNTAX ("repeat", @$, $2, $3, $4, $5);
 982         }
 983         ;
 984
 985 sequential_music:
 986         SEQUENTIAL '{' music_list '}'           {
 987                 $$ = MAKE_SYNTAX ("sequential-music", @$, scm_car ($3));
 988         }
 989         | '{' music_list '}'            {
 990                 $$ = MAKE_SYNTAX ("sequential-music", @$, scm_car ($2));
 991         }
 992         ;
 993
 994 simultaneous_music:
 995         SIMULTANEOUS '{' music_list '}'{
 996                 $$ = MAKE_SYNTAX ("simultaneous-music", @$, scm_car ($3));
 997         }
 998         | DOUBLE_ANGLE_OPEN music_list DOUBLE_ANGLE_CLOSE       {
 999                 $$ = MAKE_SYNTAX ("simultaneous-music", @$, scm_car ($2));
1000         }
1001         ;
1002
1003 simple_music:
1004         event_chord
1005         | MUSIC_IDENTIFIER
1006         | music_property_def
1007         | context_change
1008         ;
1009
1010 optional_context_mod:
1011         /**/ { $$ = SCM_EOL; }
1012         | WITH { PARSER->lexer_->push_initial_state (); }
1013         '{' context_mod_list '}'
1014         {
1015                 PARSER->lexer_->pop_state ();
1016                 $$ = $4;
1017         }
1018         ;
1019
1020 context_mod_list:
1021         /* */  { $$ = SCM_EOL; }
1022         | context_mod_list context_mod  {
1023                  $$ = scm_cons ($2, $1);
1024         }
1025         ;
1026
1027 composite_music:
1028         prefix_composite_music { $$ = $1; }
1029         | grouped_music_list { $$ = $1; }
1030         ;
1031
1032 grouped_music_list:
1033         simultaneous_music              { $$ = $1; }
1034         | sequential_music              { $$ = $1; }
1035         ;
1036
1037 function_scm_argument:
1038         embedded_scm
1039         | simple_string
1040         ;
1041
1042 /* An argument list. If a function \foo expects scm scm music, then the lexer expands \foo into the token sequence:
1043  MUSIC_FUNCTION EXPECT_MUSIC EXPECT_SCM EXPECT_SCM
1044 and this rule returns the reversed list of arguments. */
1045
1046 function_arglist_music_last:
1047         EXPECT_MUSIC function_arglist music {
1048                 $$ = scm_cons ($3, $2);
1049         }
1050         ;
1051
1052 function_arglist_nonmusic_last:
1053         EXPECT_MARKUP function_arglist full_markup {
1054                 $$ = scm_cons ($3, $2);
1055         }
1056         | EXPECT_SCM function_arglist function_scm_argument {
1057                 $$ = scm_cons ($3, $2);
1058         }
1059         ;
1060
1061 function_arglist_nonmusic: EXPECT_NO_MORE_ARGS {
1062                 $$ = SCM_EOL;
1063         }
1064         | EXPECT_MARKUP function_arglist_nonmusic full_markup {
1065                 $$ = scm_cons ($3, $2);
1066         }
1067         | EXPECT_SCM function_arglist_nonmusic function_scm_argument {
1068                 $$ = scm_cons ($3, $2);
1069         }
1070         ;
1071
1072 function_arglist: EXPECT_NO_MORE_ARGS {
1073                 /* This is for 0-ary functions, so they don't need to
1074                    read a lookahead token */
1075                 $$ = SCM_EOL;
1076         }
1077         | function_arglist_music_last
1078         | function_arglist_nonmusic_last
1079         ;
1080
1081 generic_prefix_music_scm:
1082         MUSIC_FUNCTION function_arglist {
1083                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
1084         }
1085         ;
1086
1087
1088 optional_id:
1089         /**/ { $$ = SCM_EOL; }
1090         | '=' simple_string {
1091                 $$ = $2;
1092         }
1093         ;
1094
1095
1096 prefix_composite_music:
1097         generic_prefix_music_scm {
1098                 $$ = run_music_function (PARSER, $1);
1099         }
1100         | CONTEXT simple_string optional_id optional_context_mod music {
1101                 $$ = MAKE_SYNTAX ("context-specification", @$, $2, $3, $5, $4, SCM_BOOL_F);
1102         }
1103         | NEWCONTEXT simple_string optional_id optional_context_mod music {
1104                 $$ = MAKE_SYNTAX ("context-specification", @$, $2, $3, $5, $4, SCM_BOOL_T);
1105         }
1106
1107         | TIMES fraction music {
1108                 $$ = MAKE_SYNTAX ("time-scaled-music", @$, $2, $3);
1109         }
1110         | repeated_music                { $$ = $1; }
1111         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords music {
1112                 Pitch from = *unsmob_pitch ($2);
1113                 Pitch to = *unsmob_pitch ($3);
1114                 SCM pitch = pitch_interval (from, to).smobbed_copy ();
1115                 $$ = MAKE_SYNTAX ("transpose-music", @$, pitch, $4);
1116         }
1117         | mode_changing_head grouped_music_list {
1118                 if ($1 == ly_symbol2scm ("chords"))
1119                 {
1120                   $$ = MAKE_SYNTAX ("unrelativable-music", @$, $2);
1121                 }
1122                 else
1123                 {
1124                   $$ = $2;
1125                 }
1126                 PARSER->lexer_->pop_state ();
1127         }
1128         | mode_changing_head_with_context optional_context_mod grouped_music_list {
1129                 $$ = MAKE_SYNTAX ("context-specification", @$, $1, SCM_EOL, $3, $2, SCM_BOOL_T);
1130                 if ($1 == ly_symbol2scm ("ChordNames"))
1131                 {
1132                   $$ = MAKE_SYNTAX ("unrelativable-music", @$, $$);
1133                 }
1134                 PARSER->lexer_->pop_state ();
1135         }
1136         | relative_music        { $$ = $1; }
1137         | re_rhythmed_music     { $$ = $1; }
1138         ;
1139
1140 mode_changing_head:
1141         NOTEMODE {
1142                 SCM nn = PARSER->lexer_->lookup_identifier ("pitchnames");
1143                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
1144
1145                 $$ = ly_symbol2scm ("notes");
1146         }
1147         | DRUMMODE
1148                 {
1149                 SCM nn = PARSER->lexer_->lookup_identifier ("drumPitchNames");
1150                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
1151
1152                 $$ = ly_symbol2scm ("drums");
1153         }
1154         | FIGUREMODE {
1155                 PARSER->lexer_->push_figuredbass_state ();
1156
1157                 $$ = ly_symbol2scm ("figures");
1158         }
1159         | CHORDMODE {
1160                 SCM nn = PARSER->lexer_->lookup_identifier ("chordmodifiers");
1161                 PARSER->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1162                 nn = PARSER->lexer_->lookup_identifier ("pitchnames");
1163                 PARSER->lexer_->push_chord_state (alist_to_hashq (nn));
1164                 $$ = ly_symbol2scm ("chords");
1165
1166         }
1167         | LYRICMODE
1168                 { PARSER->lexer_->push_lyric_state ();
1169                 $$ = ly_symbol2scm ("lyrics");
1170         }
1171         ;
1172
1173 mode_changing_head_with_context:
1174         DRUMS {
1175                 SCM nn = PARSER->lexer_->lookup_identifier ("drumPitchNames");
1176                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
1177
1178                 $$ = ly_symbol2scm ("DrumStaff");
1179         }
1180         | FIGURES {
1181                 PARSER->lexer_->push_figuredbass_state ();
1182
1183                 $$ = ly_symbol2scm ("FiguredBass");
1184         }
1185         | CHORDS {
1186                 SCM nn = PARSER->lexer_->lookup_identifier ("chordmodifiers");
1187                 PARSER->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1188                 nn = PARSER->lexer_->lookup_identifier ("pitchnames");
1189                 PARSER->lexer_->push_chord_state (alist_to_hashq (nn));
1190                 $$ = ly_symbol2scm ("ChordNames");
1191         }
1192         | LYRICS
1193                 { PARSER->lexer_->push_lyric_state ();
1194                 $$ = ly_symbol2scm ("Lyrics");
1195         }
1196         ;
1197
1198
1199 relative_music:
1200         RELATIVE absolute_pitch music {
1201                 Pitch start = *unsmob_pitch ($2);
1202                 $$ = make_music_relative (start, $3, @$);
1203         }
1204         | RELATIVE composite_music {
1205                 Pitch middle_c (0, 0, 0);
1206                 $$ = make_music_relative (middle_c, $2, @$);
1207         }
1208         ;
1209
1210 new_lyrics:
1211         ADDLYRICS { PARSER->lexer_->push_lyric_state (); }
1212         /*cont */
1213         grouped_music_list {
1214         /* Can also use music at the expensive of two S/Rs similar to
1215            \repeat \alternative */
1216                 PARSER->lexer_->pop_state ();
1217
1218                 $$ = scm_cons ($3, SCM_EOL);
1219         }
1220         | new_lyrics ADDLYRICS {
1221                 PARSER->lexer_->push_lyric_state ();
1222         } grouped_music_list {
1223                 PARSER->lexer_->pop_state ();
1224                 $$ = scm_cons ($4, $1);
1225         }
1226         ;
1227
1228 re_rhythmed_music:
1229         grouped_music_list new_lyrics {
1230                 $$ = MAKE_SYNTAX ("add-lyrics", @$, $1, scm_reverse_x ($2, SCM_EOL));
1231         }
1232         | LYRICSTO simple_string {
1233                 PARSER->lexer_->push_lyric_state ();
1234         } music {
1235                 PARSER->lexer_->pop_state ();
1236                 $$ = MAKE_SYNTAX ("lyric-combine", @$, $2, $4);
1237         }
1238         ;
1239
1240 context_change:
1241         CHANGE STRING '=' STRING  {
1242                 $$ = MAKE_SYNTAX ("context-change", @$, scm_string_to_symbol ($2), $4);
1243         }
1244         ;
1245
1246
1247 property_path_revved:
1248         embedded_scm {
1249                 $$ = scm_cons ($1, SCM_EOL);
1250         }
1251         | property_path_revved embedded_scm {
1252                 $$ = scm_cons ($2, $1);
1253         }
1254         ;
1255
1256 property_path:
1257         property_path_revved  {
1258                 $$ = scm_reverse_x ($1, SCM_EOL);
1259         }
1260         ;
1261
1262 property_operation:
1263         STRING '=' scalar {
1264                 $$ = scm_list_3 (ly_symbol2scm ("assign"),
1265                         scm_string_to_symbol ($1), $3);
1266         }
1267         | UNSET simple_string {
1268                 $$ = scm_list_2 (ly_symbol2scm ("unset"),
1269                         scm_string_to_symbol ($2));
1270         }
1271         | OVERRIDE simple_string property_path '=' embedded_scm {
1272                 $$ = scm_append (scm_list_2 (scm_list_3 (ly_symbol2scm ("push"),
1273                                                         scm_string_to_symbol ($2), $5),
1274                                              $3));
1275         }
1276         | REVERT simple_string embedded_scm {
1277                 $$ = scm_list_3 (ly_symbol2scm ("pop"),
1278                         scm_string_to_symbol ($2), $3);
1279         }
1280         ;
1281
1282 context_def_mod:
1283         CONSISTS { $$ = ly_symbol2scm ("consists"); }
1284         | REMOVE { $$ = ly_symbol2scm ("remove"); }
1285
1286         | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
1287         | DEFAULTCHILD { $$ = ly_symbol2scm ("default-child"); }
1288         | DENIES { $$ = ly_symbol2scm ("denies"); }
1289
1290         | ALIAS { $$ = ly_symbol2scm ("alias"); }
1291         | TYPE { $$ = ly_symbol2scm ("translator-type"); }
1292         | DESCRIPTION { $$ = ly_symbol2scm ("description"); }
1293         | NAME { $$ = ly_symbol2scm ("context-name"); }
1294         ;
1295
1296 context_mod:
1297         property_operation { $$ = $1; }
1298         | context_def_mod STRING {
1299                 $$ = scm_list_2 ($1, $2);
1300         }
1301         ;
1302
1303 context_prop_spec:
1304         simple_string {
1305                 if (!is_regular_identifier ($1))
1306                 {
1307                         @$.error (_("Grob name should be alphanumeric"));
1308                 }
1309
1310                 $$ = scm_list_2 (ly_symbol2scm ("Bottom"),
1311                         scm_string_to_symbol ($1));
1312         }
1313         | simple_string '.' simple_string {
1314                 $$ = scm_list_2 (scm_string_to_symbol ($1),
1315                         scm_string_to_symbol ($3));
1316         }
1317         ;
1318
1319 simple_music_property_def:
1320         OVERRIDE context_prop_spec property_path '=' scalar {
1321                 $$ = scm_append (scm_list_2 (scm_list_n (scm_car ($2),
1322                                 ly_symbol2scm ("OverrideProperty"),
1323                                 scm_cadr ($2),
1324                                 $5, SCM_UNDEFINED),
1325                                 $3));
1326         }
1327         | REVERT context_prop_spec embedded_scm {
1328                 $$ = scm_list_4 (scm_car ($2),
1329                         ly_symbol2scm ("RevertProperty"),
1330                         scm_cadr ($2),
1331                         $3);
1332         }
1333         | SET context_prop_spec '=' scalar {
1334                 $$ = scm_list_4 (scm_car ($2),
1335                         ly_symbol2scm ("PropertySet"),
1336                         scm_cadr ($2),
1337                         $4);
1338         }
1339         | UNSET context_prop_spec {
1340                 $$ = scm_list_3 (scm_car ($2),
1341                         ly_symbol2scm ("PropertyUnset"),
1342                         scm_cadr ($2));
1343         }
1344         ;
1345
1346 music_property_def:
1347         simple_music_property_def {
1348                 $$ = LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("property-operation"), scm_cons (PARSER->self_scm (), scm_cons2 (make_input (@$), SCM_BOOL_F, $1)));
1349         }
1350         | ONCE simple_music_property_def {
1351                 $$ = LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("property-operation"), scm_cons (PARSER->self_scm (), scm_cons2 (make_input (@$), SCM_BOOL_T, $2)));
1352         }
1353         ;
1354
1355 string:
1356         STRING {
1357                 $$ = $1;
1358         }
1359         | STRING_IDENTIFIER {
1360                 $$ = $1;
1361         }
1362         | string '+' string {
1363                 $$ = scm_string_append (scm_list_2 ($1, $3));
1364         }
1365         ;
1366
1367 simple_string: STRING {
1368                 $$ = $1;
1369         }
1370         | LYRICS_STRING {
1371                 $$ = $1;
1372         }
1373         | STRING_IDENTIFIER {
1374                 $$ = $1;
1375         }
1376         ;
1377
1378 scalar: string {
1379                 $$ = $1;
1380         }
1381         | LYRICS_STRING {
1382                 $$ = $1;
1383         }
1384         | bare_number {
1385                 $$ = $1;
1386         }
1387         | embedded_scm {
1388                 $$ = $1;
1389         }
1390         | full_markup {
1391                 $$ = $1;
1392         }
1393         | DIGIT {
1394                 $$ = scm_from_int ($1);
1395         }
1396         ;
1397
1398 event_chord:
1399         /* TODO: Create a special case that avoids the creation of
1400            EventChords around simple_elements that have no post_events?
1401          */
1402         simple_chord_elements post_events       {
1403                 SCM elts = ly_append2 ($1, scm_reverse_x ($2, SCM_EOL));
1404
1405                 Input i;
1406                 /* why is this giving wrong start location? -ns
1407                  * i = @$; */
1408                 i.set_location (@1, @2);
1409                 $$ = MAKE_SYNTAX ("event-chord", i, elts);
1410         }
1411         | MULTI_MEASURE_REST optional_notemode_duration post_events {
1412                 Input i;
1413                 i.set_location (@1, @3);
1414                 $$ = MAKE_SYNTAX ("multi-measure-rest", i, $2, $3);
1415         }
1416         | command_element
1417         | note_chord_element
1418         ;
1419
1420
1421 note_chord_element:
1422         chord_body optional_notemode_duration post_events
1423         {
1424                 Music *m = unsmob_music ($1);
1425                 SCM dur = unsmob_duration ($2)->smobbed_copy ();
1426                 SCM es = m->get_property ("elements");
1427                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1428
1429                 for (SCM s = es; scm_is_pair (s); s = scm_cdr (s))
1430                   unsmob_music (scm_car (s))->set_property ("duration", dur);
1431                 es = ly_append2 (es, postevs);
1432
1433                 m-> set_property ("elements", es);
1434                 m->set_spot (@$);
1435                 $$ = m->self_scm ();
1436         }
1437         ;
1438
1439 chord_body:
1440         ANGLE_OPEN chord_body_elements ANGLE_CLOSE
1441         {
1442                 $$ = MAKE_SYNTAX ("event-chord", @$, scm_reverse_x ($2, SCM_EOL));
1443         }
1444         ;
1445
1446 chord_body_elements:
1447         /* empty */             { $$ = SCM_EOL; }
1448         | chord_body_elements chord_body_element {
1449                 $$ = scm_cons ($2, $1);
1450         }
1451         ;
1452
1453 chord_body_element:
1454         pitch exclamations questions octave_check post_events
1455         {
1456                 int q = $3;
1457                 int ex = $2;
1458                 SCM check = $4;
1459                 SCM post = $5;
1460
1461                 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
1462                 n->set_property ("pitch", $1);
1463                 if (q % 2)
1464                         n->set_property ("cautionary", SCM_BOOL_T);
1465                 if (ex % 2 || q % 2)
1466                         n->set_property ("force-accidental", SCM_BOOL_T);
1467
1468                 if (scm_is_pair (post)) {
1469                         SCM arts = scm_reverse_x (post, SCM_EOL);
1470                         n->set_property ("articulations", arts);
1471                 }
1472                 if (scm_is_number (check))
1473                 {
1474                         int q = scm_to_int (check);
1475                         n->set_property ("absolute-octave", scm_from_int (q-1));
1476                 }
1477
1478                 $$ = n->unprotect ();
1479         }
1480         | DRUM_PITCH post_events {
1481                 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
1482                 n->set_property ("duration", $2);
1483                 n->set_property ("drum-type", $1);
1484
1485                 if (scm_is_pair ($2)) {
1486                         SCM arts = scm_reverse_x ($2, SCM_EOL);
1487                         n->set_property ("articulations", arts);
1488                 }
1489                 $$ = n->unprotect ();
1490         }
1491         | music_function_chord_body {
1492                 $$ = run_music_function (PARSER, $1);
1493         }
1494         ;
1495
1496 music_function_identifier_musicless_prefix: MUSIC_FUNCTION {
1497                 SCM sig = scm_object_property (yylval.scm, ly_symbol2scm ("music-function-signature"));
1498                 if (scm_is_pair (sig) && to_boolean (scm_memq (ly_music_p_proc, scm_cdr (scm_reverse (sig)))))
1499                 {
1500                         PARSER->parser_error (@$, "Music function applied to event may not have a Music argument, except as the last argument.");
1501                 }
1502         }
1503         ;
1504
1505 music_function_chord_body:
1506         /* We could allow chord functions to have multiple music arguments,
1507            but it's more consistent with music_function_event if we
1508            prohibit it here too */
1509         music_function_identifier_musicless_prefix EXPECT_MUSIC function_arglist_nonmusic chord_body_element {
1510                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($3, scm_list_1 ($4)));
1511         }
1512         | music_function_identifier_musicless_prefix function_arglist_nonmusic {
1513                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
1514         }
1515         ;
1516
1517 music_function_event:
1518         /* Post-events can only have the last argument as music, without this
1519            restriction we get a shift/reduce conflict from e.g.
1520            c8-\partcombine c8 -. */
1521         music_function_identifier_musicless_prefix EXPECT_MUSIC function_arglist_nonmusic post_event {
1522                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($3, scm_list_1 ($4)));
1523         }
1524         | music_function_identifier_musicless_prefix function_arglist_nonmusic {
1525                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
1526         }
1527         ;
1528
1529 command_element:
1530         command_event {
1531                 $$ = $1;
1532         }
1533         | SKIP duration_length {
1534                 $$ = MAKE_SYNTAX ("skip-music", @$, $2);
1535         }
1536         | E_BRACKET_OPEN {
1537                 Music *m = MY_MAKE_MUSIC ("LigatureEvent", @$);
1538                 m->set_property ("span-direction", scm_from_int (START));
1539                 $$ = m->unprotect();
1540         }
1541         | E_BRACKET_CLOSE {
1542                 Music *m = MY_MAKE_MUSIC ("LigatureEvent", @$);
1543                 m->set_property ("span-direction", scm_from_int (STOP));
1544                 $$ = m->unprotect ();
1545         }
1546         | E_BACKSLASH {
1547                 $$ = MAKE_SYNTAX ("voice-separator", @$, SCM_UNDEFINED);
1548         }
1549         | '|'      {
1550                 SCM pipe = PARSER->lexer_->lookup_identifier ("pipeSymbol");
1551
1552                 Music *m = unsmob_music (pipe);
1553                 if (m)
1554                 {
1555                         m = m->clone ();
1556                         m->set_spot (@$);
1557                         $$ = m->unprotect ();
1558                 }
1559                 else
1560                         $$ = MAKE_SYNTAX ("bar-check", @$, SCM_UNDEFINED);
1561
1562         }
1563         | PARTIAL duration_length       {
1564                 Moment m = - unsmob_duration ($2)->get_length ();
1565                 $$ = MAKE_SYNTAX ("property-operation", @$, SCM_BOOL_F, ly_symbol2scm ("Timing"), ly_symbol2scm ("PropertySet"), ly_symbol2scm ("measurePosition"), m.smobbed_copy ());
1566                 $$ = MAKE_SYNTAX ("context-specification", @$, ly_symbol2scm ("Score"), SCM_BOOL_F, $$, SCM_EOL, SCM_BOOL_F);
1567         }
1568
1569         | TIME_T fraction  {
1570                 SCM proc = ly_lily_module_constant ("make-time-signature-set");
1571
1572                 $$ = scm_apply_2   (proc, scm_car ($2), scm_cdr ($2), SCM_EOL);
1573         }
1574         | MARK scalar {
1575                 SCM proc = ly_lily_module_constant ("make-mark-set");
1576
1577                 $$ = scm_call_1 (proc, $2);
1578         }
1579         ;
1580
1581 command_event:
1582         E_TILDE {
1583                 $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent", @$)->unprotect ();
1584         }
1585         | MARK DEFAULT  {
1586                 Music *m = MY_MAKE_MUSIC ("MarkEvent", @$);
1587                 $$ = m->unprotect ();
1588         }
1589         | tempo_event {
1590                 $$ = $1;
1591         }
1592         | KEY DEFAULT {
1593                 Music *key = MY_MAKE_MUSIC ("KeyChangeEvent", @$);
1594                 $$ = key->unprotect ();
1595         }
1596         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1597
1598                 Music *key = MY_MAKE_MUSIC ("KeyChangeEvent", @$);
1599                 if (scm_ilength ($3) > 0)
1600                 {
1601                         key->set_property ("pitch-alist", $3);
1602                         key->set_property ("tonic", Pitch (0, 0, 0).smobbed_copy ());
1603                         key->transpose (* unsmob_pitch ($2));
1604                 } else {
1605                         PARSER->parser_error (@3, _ ("second argument must be pitch list"));
1606                 }
1607
1608                 $$ = key->unprotect ();
1609         }
1610         ;
1611
1612
1613 post_events:
1614         /* empty */ {
1615                 $$ = SCM_EOL;
1616         }
1617         | post_events post_event {
1618                 unsmob_music ($2)->set_spot (@2);
1619                 $$ = scm_cons ($2, $$);
1620         }
1621         ;
1622
1623 post_event:
1624         direction_less_event {
1625                 $$ = $1;
1626         }
1627         | '-' music_function_event {
1628                 $$ = run_music_function (PARSER, $2);
1629         }
1630         | HYPHEN {
1631                 if (!PARSER->lexer_->is_lyric_state ())
1632                         PARSER->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
1633                 $$ = MY_MAKE_MUSIC ("HyphenEvent", @$)->unprotect ();
1634         }
1635         | EXTENDER {
1636                 if (!PARSER->lexer_->is_lyric_state ())
1637                         PARSER->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
1638                 $$ = MY_MAKE_MUSIC ("ExtenderEvent", @$)->unprotect ();
1639         }
1640         | script_dir direction_reqd_event {
1641                 if ($1)
1642                 {
1643                         Music *m = unsmob_music ($2);
1644                         m->set_property ("direction", scm_from_int ($1));
1645                 }
1646                 $$ = $2;
1647         }
1648         | script_dir direction_less_event {
1649                 if ($1)
1650                 {
1651                         Music *m = unsmob_music ($2);
1652                         m->set_property ("direction", scm_from_int ($1));
1653                 }
1654                 $$ = $2;
1655         }
1656         | string_number_event
1657         ;
1658
1659 string_number_event:
1660         E_UNSIGNED {
1661                 Music *s = MY_MAKE_MUSIC ("StringNumberEvent", @$);
1662                 s->set_property ("string-number", scm_from_int ($1));
1663                 $$ = s->unprotect ();
1664         }
1665         ;
1666
1667 direction_less_char:
1668         '['  {
1669                 $$ = ly_symbol2scm ("bracketOpenSymbol");
1670         }
1671         | ']'  {
1672                 $$ = ly_symbol2scm ("bracketCloseSymbol");
1673         }
1674         | '~'  {
1675                 $$ = ly_symbol2scm ("tildeSymbol");
1676         }
1677         | '('  {
1678                 $$ = ly_symbol2scm ("parenthesisOpenSymbol");
1679         }
1680         | ')'  {
1681                 $$ = ly_symbol2scm ("parenthesisCloseSymbol");
1682         }
1683         | E_EXCLAMATION  {
1684                 $$ = ly_symbol2scm ("escapedExclamationSymbol");
1685         }
1686         | E_OPEN  {
1687                 $$ = ly_symbol2scm ("escapedParenthesisOpenSymbol");
1688         }
1689         | E_CLOSE  {
1690                 $$ = ly_symbol2scm ("escapedParenthesisCloseSymbol");
1691         }
1692         | E_ANGLE_CLOSE  {
1693                 $$ = ly_symbol2scm ("escapedBiggerSymbol");
1694         }
1695         | E_ANGLE_OPEN  {
1696                 $$ = ly_symbol2scm ("escapedSmallerSymbol");
1697         }
1698         ;
1699
1700 direction_less_event:
1701         direction_less_char {
1702                 SCM predefd = PARSER->lexer_->lookup_identifier_symbol ($1);
1703                 Music *m = 0;
1704                 if (unsmob_music (predefd))
1705                 {
1706                         m = unsmob_music (predefd)->clone ();
1707                         m->set_spot (@$);
1708                 }
1709                 else
1710                 {
1711                         m = MY_MAKE_MUSIC ("Music", @$);
1712                 }
1713                 $$ = m->unprotect ();
1714         }
1715         | EVENT_IDENTIFIER      {
1716                 $$ = $1;
1717         }
1718         | tremolo_type  {
1719                Music *a = MY_MAKE_MUSIC ("TremoloEvent", @$);
1720                a->set_property ("tremolo-type", scm_from_int ($1));
1721                $$ = a->unprotect ();
1722         }
1723         ;
1724
1725 direction_reqd_event:
1726         gen_text_def {
1727                 $$ = $1;
1728         }
1729         | script_abbreviation {
1730                 SCM s = PARSER->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1731                 Music *a = MY_MAKE_MUSIC ("ArticulationEvent", @$);
1732                 if (scm_is_string (s))
1733                         a->set_property ("articulation-type", s);
1734                 else PARSER->parser_error (@1, _ ("expecting string as script definition"));
1735                 $$ = a->unprotect ();
1736         }
1737         ;
1738
1739 octave_check:
1740         /**/ { $$ = SCM_EOL; }
1741         | '='  { $$ = scm_from_int (0); }
1742         | '=' sub_quotes { $$ = scm_from_int (-$2); }
1743         | '=' sup_quotes { $$ = scm_from_int ($2); }
1744         ;
1745
1746 sup_quotes:
1747         '\'' {
1748                 $$ = 1;
1749         }
1750         | sup_quotes '\'' {
1751                 $$ ++;
1752         }
1753         ;
1754
1755 sub_quotes:
1756         ',' {
1757                 $$ = 1;
1758         }
1759         | sub_quotes ',' {
1760                 $$++;
1761         }
1762         ;
1763
1764 steno_pitch:
1765         NOTENAME_PITCH  {
1766                 $$ = $1;
1767         }
1768         | NOTENAME_PITCH sup_quotes     {
1769                 Pitch p = *unsmob_pitch ($1);
1770                 p = p.transposed (Pitch ($2,0,0));
1771                 $$ = p.smobbed_copy ();
1772         }
1773         | NOTENAME_PITCH sub_quotes      {
1774                 Pitch p =* unsmob_pitch ($1);
1775                 p = p.transposed (Pitch (-$2,0,0));
1776                 $$ = p.smobbed_copy ();
1777         }
1778         ;
1779
1780 /*
1781 ugh. duplication
1782 */
1783
1784 steno_tonic_pitch:
1785         TONICNAME_PITCH {
1786                 $$ = $1;
1787         }
1788         | TONICNAME_PITCH sup_quotes    {
1789                 Pitch p = *unsmob_pitch ($1);
1790                 p = p.transposed (Pitch ($2,0,0));
1791                 $$ = p.smobbed_copy ();
1792         }
1793         | TONICNAME_PITCH sub_quotes     {
1794                 Pitch p = *unsmob_pitch ($1);
1795
1796                 p = p.transposed (Pitch (-$2,0,0));
1797                 $$ = p.smobbed_copy ();
1798         }
1799         ;
1800
1801 pitch:
1802         steno_pitch {
1803                 $$ = $1;
1804         }
1805         ;
1806
1807 pitch_also_in_chords:
1808         pitch
1809         | steno_tonic_pitch
1810         ;
1811
1812 gen_text_def:
1813         full_markup {
1814                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
1815                 t->set_property ("text", $1);
1816                 $$ = t->unprotect ();
1817         }
1818         | string {
1819                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
1820                 t->set_property ("text",
1821                         make_simple_markup ($1));
1822                 $$ = t->unprotect ();
1823         }
1824         | DIGIT {
1825                 Music *t = MY_MAKE_MUSIC ("FingeringEvent", @$);
1826                 t->set_property ("digit", scm_from_int ($1));
1827                 $$ = t->unprotect ();
1828         }
1829         ;
1830
1831 script_abbreviation:
1832         '^'             {
1833                 $$ = scm_from_locale_string ("Hat");
1834         }
1835         | '+'           {
1836                 $$ = scm_from_locale_string ("Plus");
1837         }
1838         | '-'           {
1839                 $$ = scm_from_locale_string ("Dash");
1840         }
1841         | '|'           {
1842                 $$ = scm_from_locale_string ("Bar");
1843         }
1844         | ANGLE_CLOSE   {
1845                 $$ = scm_from_locale_string ("Larger");
1846         }
1847         | '.'           {
1848                 $$ = scm_from_locale_string ("Dot");
1849         }
1850         | '_' {
1851                 $$ = scm_from_locale_string ("Underscore");
1852         }
1853         ;
1854
1855 script_dir:
1856         '_'     { $$ = DOWN; }
1857         | '^'   { $$ = UP; }
1858         | '-'   { $$ = CENTER; }
1859         ;
1860
1861
1862 absolute_pitch:
1863         steno_pitch     {
1864                 $$ = $1;
1865         }
1866         ;
1867
1868 duration_length:
1869         multiplied_duration {
1870                 $$ = $1;
1871         }
1872         ;
1873
1874 optional_notemode_duration:
1875         {
1876                 Duration dd = PARSER->default_duration_;
1877                 $$ = dd.smobbed_copy ();
1878         }
1879         | multiplied_duration   {
1880                 $$ = $1;
1881                 PARSER->default_duration_ = *unsmob_duration ($$);
1882         }
1883         ;
1884
1885 steno_duration:
1886         bare_unsigned dots              {
1887                 int len = 0;
1888                 if (!is_duration ($1))
1889                         PARSER->parser_error (@1, _f ("not a duration: %d", $1));
1890                 else
1891                         len = intlog2 ($1);
1892
1893                 $$ = Duration (len, $2).smobbed_copy ();
1894         }
1895         | DURATION_IDENTIFIER dots      {
1896                 Duration *d = unsmob_duration ($1);
1897                 Duration k (d->duration_log (), d->dot_count () + $2);
1898                 *d = k;
1899                 $$ = $1;
1900         }
1901         ;
1902
1903 multiplied_duration:
1904         steno_duration {
1905                 $$ = $1;
1906         }
1907         | multiplied_duration '*' bare_unsigned {
1908                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1909         }
1910         | multiplied_duration '*' FRACTION {
1911                 Rational  m (scm_to_int (scm_car ($3)), scm_to_int (scm_cdr ($3)));
1912
1913                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1914         }
1915         ;
1916
1917 fraction:
1918         FRACTION { $$ = $1; }
1919         | UNSIGNED '/' UNSIGNED {
1920                 $$ = scm_cons (scm_from_int ($1), scm_from_int ($3));
1921         }
1922         ;
1923
1924 dots:
1925         /* empty */     {
1926                 $$ = 0;
1927         }
1928         | dots '.' {
1929                 $$ ++;
1930         }
1931         ;
1932
1933 tremolo_type:
1934         ':'     {
1935                 $$ = 0;
1936         }
1937         | ':' bare_unsigned {
1938                 if (!is_duration ($2))
1939                         PARSER->parser_error (@2, _f ("not a duration: %d", $2));
1940                 $$ = $2;
1941         }
1942         ;
1943
1944 bass_number:
1945         DIGIT   {
1946                 $$ = scm_from_int ($1);
1947         }
1948         | UNSIGNED {
1949                 $$ = scm_from_int ($1);
1950         }
1951         | STRING { $$ = $1; }
1952         | full_markup { $$ = $1; }
1953         ;
1954
1955 figured_bass_alteration:
1956         '-'     { $$ = ly_rational2scm (FLAT_ALTERATION); }
1957         | '+'   { $$ = ly_rational2scm (SHARP_ALTERATION); }
1958         | '!'   { $$ = scm_from_int (0); }
1959         ;
1960
1961 bass_figure:
1962         FIGURE_SPACE {
1963                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent", @$);
1964                 $$ = bfr->unprotect ();
1965         }
1966         | bass_number  {
1967                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent", @$);
1968                 $$ = bfr->self_scm ();
1969
1970                 if (scm_is_number ($1))
1971                         bfr->set_property ("figure", $1);
1972                 else if (Text_interface::is_markup ($1))
1973                         bfr->set_property ("text", $1);
1974
1975                 bfr->unprotect ();
1976         }
1977         | bass_figure ']' {
1978                 $$ = $1;
1979                 unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
1980         }
1981         | bass_figure figured_bass_alteration {
1982                 Music *m = unsmob_music ($1);
1983                 if (scm_to_double ($2)) {
1984                         SCM salter = m->get_property ("alteration");
1985                         SCM alter = scm_is_number (salter) ? salter : scm_from_int (0);
1986                         m->set_property ("alteration",
1987                                          scm_sum (alter, $2));
1988                 } else {
1989                         m->set_property ("alteration", scm_from_int (0));
1990                 }
1991         }
1992         | bass_figure figured_bass_modification  {
1993                 Music *m = unsmob_music ($1);
1994                 if ($2 == ly_symbol2scm ("plus"))
1995                         {
1996                         m->set_property ("augmented", SCM_BOOL_T);
1997                         }
1998                 else if ($2 == ly_symbol2scm ("slash"))
1999                         {
2000                         m->set_property ("diminished", SCM_BOOL_T);
2001                         }
2002                 else if ($2 == ly_symbol2scm ("exclamation"))
2003                         {
2004                         m->set_property ("no-continuation", SCM_BOOL_T);
2005                         }
2006                 else if ($2 == ly_symbol2scm ("backslash"))
2007                         {
2008                         m->set_property ("augmented-slash", SCM_BOOL_T);
2009                         }
2010         }
2011         ;
2012
2013
2014 figured_bass_modification:
2015         E_PLUS          {
2016                 $$ = ly_symbol2scm ("plus");
2017         }
2018         | E_EXCLAMATION {
2019                 $$ = ly_symbol2scm ("exclamation");
2020         }
2021         | '/'           {
2022                 $$ = ly_symbol2scm ("slash");
2023         }
2024         | E_BACKSLASH {
2025                 $$ = ly_symbol2scm ("backslash");
2026         }
2027         ;
2028
2029 br_bass_figure:
2030         bass_figure {
2031                 $$ = $1;
2032         }
2033         | '[' bass_figure {
2034                 $$ = $2;
2035                 unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
2036         }
2037         ;
2038
2039 figure_list:
2040         /**/            {
2041                 $$ = SCM_EOL;
2042         }
2043         | figure_list br_bass_figure {
2044                 $$ = scm_cons ($2, $1);
2045         }
2046         ;
2047
2048 figure_spec:
2049         FIGURE_OPEN figure_list FIGURE_CLOSE {
2050                 $$ = scm_reverse_x ($2, SCM_EOL);
2051         }
2052         ;
2053
2054
2055 optional_rest:
2056         /**/   { $$ = 0; }
2057         | REST { $$ = 1; }
2058         ;
2059
2060 simple_element:
2061         pitch exclamations questions octave_check optional_notemode_duration optional_rest {
2062                 if (!PARSER->lexer_->is_note_state ())
2063                         PARSER->parser_error (@1, _ ("have to be in Note mode for notes"));
2064
2065                 Music *n = 0;
2066                 if ($6)
2067                         n = MY_MAKE_MUSIC ("RestEvent", @$);
2068                 else
2069                         n = MY_MAKE_MUSIC ("NoteEvent", @$);
2070
2071                 n->set_property ("pitch", $1);
2072                 n->set_property ("duration", $5);
2073
2074                 if (scm_is_number ($4))
2075                 {
2076                         int q = scm_to_int ($4);
2077                         n->set_property ("absolute-octave", scm_from_int (q-1));
2078                 }
2079
2080                 if ($3 % 2)
2081                         n->set_property ("cautionary", SCM_BOOL_T);
2082                 if ($2 % 2 || $3 % 2)
2083                         n->set_property ("force-accidental", SCM_BOOL_T);
2084
2085                 $$ = n->unprotect ();
2086         }
2087         | DRUM_PITCH optional_notemode_duration {
2088                 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
2089                 n->set_property ("duration", $2);
2090                 n->set_property ("drum-type", $1);
2091
2092                 $$ = n->unprotect ();
2093         }
2094         | RESTNAME optional_notemode_duration           {
2095                 Music *ev = 0;
2096                 if (ly_scm2string ($1) == "s") {
2097                         /* Space */
2098                         ev = MY_MAKE_MUSIC ("SkipEvent", @$);
2099                   }
2100                 else {
2101                         ev = MY_MAKE_MUSIC ("RestEvent", @$);
2102
2103                     }
2104                 ev->set_property ("duration", $2);
2105                 $$ = ev->unprotect ();
2106         }
2107         | lyric_element optional_notemode_duration      {
2108                 if (!PARSER->lexer_->is_lyric_state ())
2109                         PARSER->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
2110
2111                 Music *levent = MY_MAKE_MUSIC ("LyricEvent", @$);
2112                 levent->set_property ("text", $1);
2113                 levent->set_property ("duration",$2);
2114                 $$= levent->unprotect ();
2115         }
2116         ;
2117
2118 simple_chord_elements:
2119         simple_element  {
2120                 $$ = scm_list_1 ($1);
2121         }
2122         | new_chord {
2123                 if (!PARSER->lexer_->is_chord_state ())
2124                         PARSER->parser_error (@1, _ ("have to be in Chord mode for chords"));
2125                 $$ = $1;
2126         }
2127         | figure_spec optional_notemode_duration {
2128                 for (SCM s = $1; scm_is_pair (s); s = scm_cdr (s))
2129                 {
2130                         unsmob_music (scm_car (s))->set_property ("duration", $2);
2131                 }
2132                 $$ = $1;
2133         }
2134         ;
2135
2136 lyric_element:
2137         lyric_markup {
2138                 $$ = $1;
2139         }
2140         | LYRICS_STRING {
2141                 $$ = $1;
2142         }
2143         ;
2144
2145 new_chord:
2146         steno_tonic_pitch optional_notemode_duration   {
2147                 $$ = make_chord_elements ($1, $2, SCM_EOL);
2148         }
2149         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2150                 SCM its = scm_reverse_x ($4, SCM_EOL);
2151                 $$ = make_chord_elements ($1, $2, scm_cons ($3, its));
2152         }
2153         ;
2154
2155 chord_items:
2156         /**/ {
2157                 $$ = SCM_EOL;
2158         }
2159         | chord_items chord_item {
2160                 $$ = scm_cons ($2, $$);
2161         }
2162         ;
2163
2164 chord_separator:
2165         CHORD_COLON {
2166                 $$ = ly_symbol2scm ("chord-colon");
2167         }
2168         | CHORD_CARET {
2169                 $$ = ly_symbol2scm ("chord-caret");
2170         }
2171         | CHORD_SLASH steno_tonic_pitch {
2172                 $$ = scm_list_2 (ly_symbol2scm ("chord-slash"), $2);
2173         }
2174         | CHORD_BASS steno_tonic_pitch {
2175                 $$ = scm_list_2 (ly_symbol2scm ("chord-bass"), $2);
2176         }
2177         ;
2178
2179 chord_item:
2180         chord_separator {
2181                 $$ = $1;
2182         }
2183         | step_numbers {
2184                 $$ = scm_reverse_x ($1, SCM_EOL);
2185         }
2186         | CHORD_MODIFIER  {
2187                 $$ = $1;
2188         }
2189         ;
2190
2191 step_numbers:
2192         step_number { $$ = scm_cons ($1, SCM_EOL); }
2193         | step_numbers '.' step_number {
2194                 $$ = scm_cons ($3, $$);
2195         }
2196         ;
2197
2198 step_number:
2199         bare_unsigned {
2200                 $$ = make_chord_step ($1, 0);
2201         }
2202         | bare_unsigned '+' {
2203                 $$ = make_chord_step ($1, SHARP_ALTERATION);
2204         }
2205         | bare_unsigned CHORD_MINUS {
2206                 $$ = make_chord_step ($1, FLAT_ALTERATION);
2207         }
2208         ;
2209
2210 /*
2211         UTILITIES
2212
2213 TODO: should deprecate in favor of Scheme?
2214
2215  */
2216 number_expression:
2217         number_expression '+' number_term {
2218                 $$ = scm_sum ($1, $3);
2219         }
2220         | number_expression '-' number_term {
2221                 $$ = scm_difference ($1, $3);
2222         }
2223         | number_term
2224         ;
2225
2226 number_term:
2227         number_factor {
2228                 $$ = $1;
2229         }
2230         | number_factor '*' number_factor {
2231                 $$ = scm_product ($1, $3);
2232         }
2233         | number_factor '/' number_factor {
2234                 $$ = scm_divide ($1, $3);
2235         }
2236         ;
2237
2238 number_factor:
2239         '-'  number_factor { /* %prec UNARY_MINUS */
2240                 $$ = scm_difference ($2, SCM_UNDEFINED);
2241         }
2242         | bare_number
2243         ;
2244
2245
2246 bare_number:
2247         UNSIGNED        {
2248                 $$ = scm_from_int ($1);
2249         }
2250         | REAL          {
2251                 $$ = $1;
2252         }
2253         | NUMBER_IDENTIFIER             {
2254                 $$ = $1;
2255         }
2256         | REAL NUMBER_IDENTIFIER        {
2257                 $$ = scm_from_double (scm_to_double ($1) *scm_to_double ($2));
2258         }
2259         | UNSIGNED NUMBER_IDENTIFIER    {
2260                 $$ = scm_from_double ($1 *scm_to_double ($2));
2261         }
2262         ;
2263
2264
2265 bare_unsigned:
2266         UNSIGNED {
2267                         $$ = $1;
2268         }
2269         | DIGIT {
2270                 $$ = $1;
2271         }
2272         ;
2273
2274 unsigned_number:
2275         bare_unsigned  { $$ = scm_from_int ($1); }
2276         | NUMBER_IDENTIFIER {
2277                 $$ = $1;
2278         }
2279         ;
2280
2281
2282 exclamations:
2283                 { $$ = 0; }
2284         | exclamations '!'      { $$ ++; }
2285         ;
2286
2287 questions:
2288                 { $$ = 0; }
2289         | questions '?' { $$ ++; }
2290         ;
2291
2292 /*
2293 This should be done more dynamically if possible.
2294 */
2295
2296 lyric_markup:
2297         LYRIC_MARKUP_IDENTIFIER {
2298                 $$ = $1;
2299         }
2300         | LYRIC_MARKUP
2301                 { PARSER->lexer_->push_markup_state (); }
2302         markup_top {
2303                 $$ = $3;
2304                 PARSER->lexer_->pop_state ();
2305         }
2306         ;
2307
2308 full_markup_list:
2309         MARKUPLINES
2310                 { PARSER->lexer_->push_markup_state (); }
2311         markup_list {
2312                 $$ = $3;
2313                 PARSER->lexer_->pop_state ();
2314         }
2315         ;
2316
2317 full_markup:
2318         MARKUP_IDENTIFIER {
2319                 $$ = $1;
2320         }
2321         | MARKUP
2322                 { PARSER->lexer_->push_markup_state (); }
2323         markup_top {
2324                 $$ = $3;
2325                 PARSER->lexer_->pop_state ();
2326         }
2327         ;
2328
2329 markup_top:
2330         markup_list {
2331                 $$ = scm_list_2 (ly_lily_module_constant ("line-markup"),  $1);
2332         }
2333         | markup_head_1_list simple_markup      {
2334                 $$ = scm_car (scm_call_2 (ly_lily_module_constant ("map-markup-command-list"), $1, scm_list_1 ($2)));
2335         }
2336         | simple_markup {
2337                 $$ = $1;
2338         }
2339         ;
2340
2341 markup_list:
2342         markup_composed_list {
2343                 $$ = $1;
2344         }
2345         | markup_braced_list {
2346                 $$ = $1;
2347         }
2348         | markup_command_list {
2349                 $$ = scm_list_1 ($1);
2350         }
2351         ;
2352
2353 markup_composed_list:
2354         markup_head_1_list markup_braced_list {
2355                 $$ = scm_call_2 (ly_lily_module_constant ("map-markup-command-list"), $1, $2);
2356
2357         }
2358         ;
2359
2360 markup_braced_list:
2361         '{' markup_braced_list_body '}' {
2362                 $$ = scm_reverse_x ($2, SCM_EOL);
2363         }
2364         ;
2365
2366 markup_braced_list_body:
2367         /* empty */     {  $$ = SCM_EOL; }
2368         | markup_braced_list_body markup {
2369                 $$ = scm_cons ($2, $1);
2370         }
2371         | markup_braced_list_body markup_list {
2372                 $$ = scm_append_x (scm_list_2 (scm_reverse_x ($2, SCM_EOL), $1));
2373         }
2374         ;
2375
2376 markup_command_list:
2377         MARKUP_LIST_HEAD_EMPTY  {
2378                 $$ = scm_list_1 ($1);
2379         }
2380         | MARKUP_LIST_HEAD_LIST0 markup_list    {
2381                 $$ = scm_list_2 ($1, $2);
2382         }
2383         | MARKUP_LIST_HEAD_SCM0 embedded_scm    {
2384                 $$ = scm_list_2 ($1, $2);
2385         }
2386         | MARKUP_LIST_HEAD_SCM0_LIST1 embedded_scm markup_list  {
2387                 $$ = scm_list_3 ($1, $2, $3);
2388         }
2389         | MARKUP_LIST_HEAD_SCM0_SCM1_LIST2 embedded_scm embedded_scm markup_list        {
2390                 $$ = scm_list_4 ($1, $2, $3, $4);
2391         }
2392         ;
2393
2394 markup_head_1_item:
2395         MARKUP_HEAD_MARKUP0     {
2396                 $$ = scm_list_1 ($1);
2397         }
2398         | MARKUP_HEAD_SCM0_MARKUP1 embedded_scm {
2399                 $$ = scm_list_2 ($1, $2);
2400         }
2401         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm       {
2402                 $$ = scm_list_3 ($1, $2, $3);
2403         }
2404         ;
2405
2406 markup_head_1_list:
2407         markup_head_1_item      {
2408                 $$ = scm_list_1 ($1);
2409         }
2410         | markup_head_1_list markup_head_1_item {
2411                 $$ = scm_cons ($2, $1);
2412         }
2413         ;
2414
2415 simple_markup:
2416         STRING {
2417                 $$ = make_simple_markup ($1);
2418         }
2419         | MARKUP_IDENTIFIER {
2420                 $$ = $1;
2421         }
2422         | LYRIC_MARKUP_IDENTIFIER {
2423                 $$ = $1;
2424         }
2425         | STRING_IDENTIFIER {
2426                 $$ = $1;
2427         }
2428         | SCORE {
2429                 SCM nn = PARSER->lexer_->lookup_identifier ("pitchnames");
2430                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
2431         } '{' score_body '}' {
2432                 Score * sc = $4;
2433                 $$ = scm_list_2 (ly_lily_module_constant ("score-markup"), sc->self_scm ());
2434                 sc->unprotect ();
2435                 PARSER->lexer_->pop_state ();
2436         }
2437         | MARKUP_HEAD_SCM0 embedded_scm {
2438                 $$ = scm_list_2 ($1, $2);
2439         }
2440         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2441                 $$ = scm_list_4 ($1, $2, $3, $4);
2442         }
2443         | MARKUP_HEAD_SCM0_SCM1 embedded_scm embedded_scm {
2444                 $$ = scm_list_3 ($1, $2, $3);
2445         }
2446         | MARKUP_HEAD_SCM0_MARKUP1_MARKUP2 embedded_scm markup markup {
2447                 $$ = scm_list_4 ($1, $2, $3, $4);
2448         }
2449         | MARKUP_HEAD_SCM0_SCM1_MARKUP2_MARKUP3 embedded_scm embedded_scm markup markup {
2450                 $$ = scm_list_5 ($1, $2, $3, $4, $5);
2451         }
2452         | MARKUP_HEAD_EMPTY {
2453                 $$ = scm_list_1 ($1);
2454         }
2455         | MARKUP_HEAD_LIST0 markup_list {
2456                 $$ = scm_list_2 ($1,$2);
2457         }
2458         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2459                 $$ = scm_list_3 ($1, $2, $3);
2460         }
2461         ;
2462
2463 markup:
2464         markup_head_1_list simple_markup        {
2465                 SCM mapper = ly_lily_module_constant ("map-markup-command-list");
2466                 $$ = scm_car (scm_call_2 (mapper, $1, scm_list_1 ($2)));
2467         }
2468         | simple_markup {
2469                 $$ = $1;
2470         }
2471         ;
2472
2473 %%
2474
2475 void
2476 Lily_parser::set_yydebug (bool x)
2477 {
2478         yydebug = x;
2479 }
2480
2481 void
2482 Lily_parser::do_yyparse ()
2483 {
2484         yyparse ((void*)this);
2485 }
2486
2487
2488
2489
2490
2491 /*
2492
2493 It is a little strange to have this function in this file, but
2494 otherwise, we have to import music classes into the lexer.
2495
2496 */
2497 int
2498 Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
2499 {
2500         if (scm_is_string (sid)) {
2501                 *destination = sid;
2502                 return STRING_IDENTIFIER;
2503         } else if (unsmob_book (sid)) {
2504                 Book *book =  unsmob_book (sid)->clone ();
2505                 *destination = book->self_scm ();
2506                 book->unprotect ();
2507
2508                 return BOOK_IDENTIFIER;
2509         } else if (scm_is_number (sid)) {
2510                 *destination = sid;
2511                 return NUMBER_IDENTIFIER;
2512         } else if (unsmob_context_def (sid)) {
2513                 Context_def *def= unsmob_context_def (sid)->clone ();
2514
2515                 *destination = def->self_scm ();
2516                 def->unprotect ();
2517
2518                 return CONTEXT_DEF_IDENTIFIER;
2519         } else if (unsmob_score (sid)) {
2520                 Score *score = new Score (*unsmob_score (sid));
2521                 *destination = score->self_scm ();
2522
2523                 score->unprotect ();
2524                 return SCORE_IDENTIFIER;
2525         } else if (Music *mus = unsmob_music (sid)) {
2526                 mus = mus->clone ();
2527                 *destination = mus->self_scm ();
2528                 unsmob_music (*destination)->
2529                         set_property ("origin", make_input (last_input_));
2530
2531                 bool is_event = scm_memq (ly_symbol2scm ("event"), mus->get_property ("types"))
2532                         != SCM_BOOL_F;
2533
2534                 mus->unprotect ();
2535                 return is_event ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2536         } else if (unsmob_duration (sid)) {
2537                 *destination = unsmob_duration (sid)->smobbed_copy ();
2538                 return DURATION_IDENTIFIER;
2539         } else if (unsmob_output_def (sid)) {
2540                 Output_def *p = unsmob_output_def (sid);
2541                 p = p->clone ();
2542
2543                 *destination = p->self_scm ();
2544                 p->unprotect ();
2545                 return OUTPUT_DEF_IDENTIFIER;
2546         } else if (Text_interface::is_markup (sid)) {
2547                 *destination = sid;
2548                 if (is_lyric_state ())
2549                         return LYRIC_MARKUP_IDENTIFIER;
2550                 return MARKUP_IDENTIFIER;
2551         }
2552
2553         return -1;
2554 }
2555
2556 SCM
2557 get_next_unique_context_id ()
2558 {
2559         return scm_from_locale_string ("$uniqueContextId");
2560 }
2561
2562
2563 SCM
2564 get_next_unique_lyrics_context_id ()
2565 {
2566         static int new_context_count;
2567         char s[128];
2568         snprintf (s, sizeof (s)-1, "uniqueContext%d", new_context_count++);
2569         return scm_from_locale_string (s);
2570 }
2571
2572
2573 SCM
2574 run_music_function (Lily_parser *parser, SCM expr)
2575 {
2576         SCM func = scm_car (expr);
2577         Input *loc = unsmob_input (scm_cadr (expr));
2578         SCM args = scm_cddr (expr);
2579         SCM sig = scm_object_property (func, ly_symbol2scm ("music-function-signature"));
2580
2581         SCM type_check_proc = ly_lily_module_constant ("type-check-list");
2582
2583         if (!to_boolean (scm_call_3  (type_check_proc, scm_cadr (expr), sig, args)))
2584         {
2585                 parser->error_level_ = 1;
2586                 return LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("void-music"), scm_list_2 (parser->self_scm (), make_input (*loc)));
2587         }
2588
2589         SCM syntax_args = scm_list_4 (parser->self_scm (), make_input (*loc), func, args);
2590         return LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("music-function"), syntax_args);
2591 }
2592
2593 bool
2594 is_regular_identifier (SCM id)
2595 {
2596   string str = ly_scm2string (id);
2597   char const *s = str.c_str ();
2598
2599   bool v = true;
2600 #if 0
2601   isalpha (*s);
2602   s++;
2603 #endif
2604   while (*s && v)
2605    {
2606         v = v && isalnum (*s);
2607         s++;
2608    }
2609   return v;
2610 }
2611
2612 Music *
2613 make_music_with_input (SCM name, Input where)
2614 {
2615        Music *m = make_music_by_name (name);
2616        m->set_spot (where);
2617        return m;
2618 }
2619
2620 SCM
2621 get_first_context_id (SCM type, Music *m)
2622 {
2623         SCM id = m->get_property ("context-id");
2624         if (SCM_BOOL_T == scm_equal_p (m->get_property ("context-type"), type)
2625             && scm_is_string (m->get_property ("context-id"))
2626             && scm_c_string_length (id) > 0)
2627         {
2628                 return id;
2629         }
2630         return SCM_EOL;
2631 }
2632
2633 SCM
2634 make_simple_markup (SCM a)
2635 {
2636         return a;
2637 }
2638
2639 bool
2640 is_duration (int t)
2641 {
2642   return t && t == 1 << intlog2 (t);
2643 }
2644
2645 void
2646 set_music_properties (Music *p, SCM a)
2647 {
2648   for (SCM k = a; scm_is_pair (k); k = scm_cdr (k))
2649         p->set_property (scm_caar (k), scm_cdar (k));
2650 }
2651
2652
2653 SCM
2654 make_chord_step (int step, Rational alter)
2655 {
2656         if (step == 7)
2657                 alter += FLAT_ALTERATION;
2658
2659         while (step < 0)
2660                 step += 7;
2661         Pitch m ((step -1) / 7, (step - 1) % 7, alter);
2662         return m.smobbed_copy ();
2663 }
2664
2665
2666 SCM
2667 make_chord_elements (SCM pitch, SCM dur, SCM modification_list)
2668 {
2669         SCM chord_ctor = ly_lily_module_constant ("construct-chord-elements");
2670         return scm_call_3 (chord_ctor, pitch, dur, modification_list);
2671 }
2672
2673
2674 /* Todo: actually also use apply iso. call too ...  */
2675 bool
2676 ly_input_procedure_p (SCM x)
2677 {
2678         return ly_is_procedure (x)
2679                 || (scm_is_pair (x) && ly_is_procedure (scm_car (x)));
2680 }
2681
2682 SCM
2683 make_music_relative (Pitch start, SCM music, Input loc)
2684 {
2685         Music *relative = MY_MAKE_MUSIC ("RelativeOctaveMusic", loc);
2686         relative->set_property ("element", music);
2687
2688         Music *m = unsmob_music (music);
2689         Pitch last = m->to_relative_octave (start);
2690         if (lily_1_8_relative)
2691                 m->set_property ("last-pitch", last.smobbed_copy ());
2692         return relative->unprotect ();
2693 }
2694
2695 int
2696 yylex (YYSTYPE *s, YYLTYPE *loc, void *v)
2697 {
2698         Lily_parser *pars = (Lily_parser*) v;
2699         Lily_lexer *lex = pars->lexer_;
2700
2701         lex->lexval = (void*) s;
2702         lex->lexloc = loc;
2703         lex->prepare_for_next_token ();
2704         return lex->yylex ();
2705 }