lily/parser.yy

   1 /*
   2   This file is part of LilyPond, the GNU music typesetter.
   3
   4   Copyright (C) 1997--2009 Han-Wen Nienhuys <hanwen@xs4all.nl>
   5                  Jan Nieuwenhuizen <janneke@gnu.org>
   6
   7   LilyPond is free software: you can redistribute it and/or modify
   8   it under the terms of the GNU General Public License as published by
   9   the Free Software Foundation, either version 3 of the License, or
  10   (at your option) any later version.
  11
  12   LilyPond is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15   GNU General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with LilyPond.  If not, see <http://www.gnu.org/licenses/>.
  19 */
  20
  21 %{
  22
  23 #define YYDEBUG 1
  24 #define YYERROR_VERBOSE 1
  25 #define YYPARSE_PARAM my_lily_parser
  26 #define YYLEX_PARAM my_lily_parser
  27 #define PARSER ((Lily_parser *) my_lily_parser)
  28
  29 #define yyerror PARSER->parser_error
  30
  31 /* We use custom location type: Input objects */
  32 #define YYLTYPE Input
  33 #define YYLLOC_DEFAULT(Current,Rhs,N) \
  34         ((Current).set_location ((Rhs)[1], (Rhs)[N]))
  35
  36
  37 %}
  38
  39 /* We use SCMs to do strings, because it saves us the trouble of
  40 deleting them.  Let's hope that a stack overflow doesnt trigger a move
  41 of the parse stack onto the heap. */
  42
  43 %left PREC_TOP
  44 %left ADDLYRICS
  45 %left PREC_BOT
  46
  47 %expect 1
  48
  49 /* One shift/reduce problem
  50
  51 1.  \repeat
  52         \repeat .. \alternative
  53
  54     \repeat { \repeat .. \alternative }
  55
  56 or
  57
  58     \repeat { \repeat } \alternative
  59 */
  60
  61
  62 %pure_parser
  63 %locations
  64
  65
  66
  67 %{ // -*-Fundamental-*-
  68
  69 /*
  70 FIXME:
  71
  72    * The rules for who is protecting what are very shady.  Uniformise
  73      this.
  74
  75    * There are too many lexical modes?
  76 */
  77
  78 #include "config.hh"
  79
  80 #include <cctype>
  81 #include <cstdlib>
  82 #include <cstdio>
  83 using namespace std;
  84
  85 #include "book.hh"
  86 #include "context-def.hh"
  87 #include "dimensions.hh"
  88 #include "file-path.hh"
  89 #include "input.hh"
  90 #include "international.hh"
  91 #include "lily-guile.hh"
  92 #include "lily-lexer.hh"
  93 #include "lily-parser.hh"
  94 #include "main.hh"
  95 #include "misc.hh"
  96 #include "music.hh"
  97 #include "music.hh"
  98 #include "output-def.hh"
  99 #include "paper-book.hh"
 100 #include "program-option.hh"
 101 #include "scm-hash.hh"
 102 #include "score.hh"
 103 #include "text-interface.hh"
 104 #include "warn.hh"
 105
 106 %}
 107
 108
 109 %union {
 110         Book *book;
 111         Output_def *outputdef;
 112         SCM scm;
 113         std::string *string;
 114         Music *music;
 115         Score *score;
 116         int i;
 117 }
 118
 119 %{
 120
 121 #define MY_MAKE_MUSIC(x, spot)  make_music_with_input (ly_symbol2scm (x), spot)
 122
 123 /* ES TODO:
 124 - Don't use lily module, create a new module instead.
 125 - delay application of the function
 126 */
 127 #define LOWLEVEL_MAKE_SYNTAX(proc, args)        \
 128   scm_apply_0 (proc, args)
 129 /* Syntactic Sugar. */
 130 #define MAKE_SYNTAX(name, location, ...)        \
 131   LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant (name), scm_list_n (PARSER->self_scm (), make_input (location), __VA_ARGS__, SCM_UNDEFINED));
 132
 133 SCM get_next_unique_context_id ();
 134 SCM get_next_unique_lyrics_context_id ();
 135
 136 #undef _
 137 #if !HAVE_GETTEXT
 138 #define _(x) x
 139 #else
 140 #include <libintl.h>
 141 #define _(x) gettext (x)
 142 #endif
 143
 144
 145 static Music *make_music_with_input (SCM name, Input where);
 146 SCM make_music_relative (Pitch start, SCM music, Input loc);
 147 SCM run_music_function (Lily_parser *, SCM expr);
 148 SCM get_first_context_id (SCM type, Music *m);
 149 SCM make_chord_elements (SCM pitch, SCM dur, SCM modification_list);
 150 SCM make_chord_step (int step, Rational alter);
 151 SCM make_simple_markup (SCM a);
 152 bool is_duration (int t);
 153 bool is_regular_identifier (SCM id);
 154 bool ly_input_procedure_p (SCM x);
 155 int yylex (YYSTYPE *s, YYLTYPE *loc, void *v);
 156 void set_music_properties (Music *p, SCM a);
 157
 158 %}
 159
 160 /* The third option is an alias that will be used to display the
 161    syntax error.  Bison CVS now correctly handles backslash escapes.
 162
 163    FIXME: Bison needs to translate some of these, eg, STRING.
 164
 165 */
 166
 167 /* Keyword tokens with plain escaped name.  */
 168 %token ACCEPTS "\\accepts"
 169 %token ADDLYRICS "\\addlyrics"
 170 %token ALIAS "\\alias"
 171 %token ALTERNATIVE "\\alternative"
 172 %token BOOK "\\book"
 173 %token BOOKPART "\\bookpart"
 174 %token CHANGE "\\change"
 175 %token CHORDMODE "\\chordmode"
 176 %token CHORDS "\\chords"
 177 %token CONSISTS "\\consists"
 178 %token CONTEXT "\\context"
 179 %token DEFAULT "\\default"
 180 %token DEFAULTCHILD "\\defaultchild"
 181 %token DENIES "\\denies"
 182 %token DESCRIPTION "\\description"
 183 %token DRUMMODE "\\drummode"
 184 %token DRUMS "\\drums"
 185 %token FIGUREMODE "\\figuremode"
 186 %token FIGURES "\\figures"
 187 %token GROBDESCRIPTIONS "\\grobdescriptions"
 188 %token HEADER "\\header"
 189 %token INVALID "\\invalid"
 190 %token KEY "\\key"
 191 %token LAYOUT "\\layout"
 192 %token LYRICMODE "\\lyricmode"
 193 %token LYRICS "\\lyrics"
 194 %token LYRICSTO "\\lyricsto"
 195 %token MARK "\\mark"
 196 %token MARKUP "\\markup"
 197 %token MARKUPLINES "\\markuplines"
 198 %token MIDI "\\midi"
 199 %token NAME "\\name"
 200 %token NOTEMODE "\\notemode"
 201 %token OBJECTID "\\objectid"
 202 %token OCTAVE "\\octave"
 203 %token ONCE "\\once"
 204 %token OVERRIDE "\\override"
 205 %token PAPER "\\paper"
 206 %token PARTIAL "\\partial"
 207 %token RELATIVE "\\relative"
 208 %token REMOVE "\\remove"
 209 %token REPEAT "\\repeat"
 210 %token REST "\\rest"
 211 %token REVERT "\\revert"
 212 %token SCORE "\\score"
 213 %token SEQUENTIAL "\\sequential"
 214 %token SET "\\set"
 215 %token SIMULTANEOUS "\\simultaneous"
 216 %token SKIP "\\skip"
 217 %token TEMPO "\\tempo"
 218 %token TIMES "\\times"
 219 %token TRANSPOSE "\\transpose"
 220 %token TYPE "\\type"
 221 %token UNSET "\\unset"
 222 %token WITH "\\with"
 223
 224 /* Keyword token exceptions.  */
 225 %token TIME_T "\\time"
 226 %token NEWCONTEXT "\\new"
 227
 228
 229 /* Other string tokens.  */
 230
 231 %token CHORD_BASS "/+"
 232 %token CHORD_CARET "^"
 233 %token CHORD_COLON ":"
 234 %token CHORD_MINUS "-"
 235 %token CHORD_SLASH "/"
 236 %token ANGLE_OPEN "<"
 237 %token ANGLE_CLOSE ">"
 238 %token DOUBLE_ANGLE_OPEN "<<"
 239 %token DOUBLE_ANGLE_CLOSE ">>"
 240 %token E_BACKSLASH "\\"
 241 %token E_ANGLE_CLOSE "\\>"
 242 %token E_CHAR "\\C[haracter]"
 243 %token E_CLOSE "\\)"
 244 %token E_EXCLAMATION "\\!"
 245 %token E_BRACKET_OPEN "\\["
 246 %token E_OPEN "\\("
 247 %token E_BRACKET_CLOSE "\\]"
 248 %token E_ANGLE_OPEN "\\<"
 249 %token E_PLUS "\\+"
 250 %token E_TILDE "\\~"
 251 %token EXTENDER "__"
 252
 253 /*
 254 If we give names, Bison complains.
 255 */
 256 %token FIGURE_CLOSE /* "\\>" */
 257 %token FIGURE_OPEN /* "\\<" */
 258 %token FIGURE_SPACE "_"
 259 %token HYPHEN "--"
 260
 261 %token CHORDMODIFIERS
 262 %token LYRIC_MARKUP
 263 %token MULTI_MEASURE_REST
 264
 265
 266 %token <i> DIGIT
 267 %token <i> E_UNSIGNED
 268 %token <i> UNSIGNED
 269
 270 /* Artificial tokens, for more generic function syntax */
 271 %token <i> EXPECT_MARKUP;
 272 %token <i> EXPECT_MUSIC;
 273 %token <i> EXPECT_SCM;
 274 /* After the last argument. */
 275 %token <i> EXPECT_NO_MORE_ARGS;
 276
 277 %token <scm> BOOK_IDENTIFIER
 278 %token <scm> CHORDMODIFIER_PITCH
 279 %token <scm> CHORD_MODIFIER
 280 %token <scm> CHORD_REPETITION
 281 %token <scm> CONTEXT_DEF_IDENTIFIER
 282 %token <scm> DRUM_PITCH
 283 %token <scm> DURATION_IDENTIFIER
 284 %token <scm> EVENT_IDENTIFIER
 285 %token <scm> FRACTION
 286 %token <scm> LYRICS_STRING
 287 %token <scm> LYRIC_MARKUP_IDENTIFIER
 288 %token <scm> MARKUP_HEAD_EMPTY
 289 %token <scm> MARKUP_HEAD_LIST0
 290 %token <scm> MARKUP_HEAD_MARKUP0
 291 %token <scm> MARKUP_HEAD_MARKUP0_MARKUP1
 292 %token <scm> MARKUP_HEAD_SCM0
 293 %token <scm> MARKUP_HEAD_SCM0_MARKUP1
 294 %token <scm> MARKUP_HEAD_SCM0_SCM1
 295 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2
 296 %token <scm> MARKUP_HEAD_SCM0_SCM1_MARKUP2_MARKUP3
 297 %token <scm> MARKUP_HEAD_SCM0_MARKUP1_MARKUP2
 298 %token <scm> MARKUP_HEAD_SCM0_SCM1_SCM2
 299 %token <scm> MARKUP_LIST_HEAD_EMPTY
 300 %token <scm> MARKUP_LIST_HEAD_LIST0
 301 %token <scm> MARKUP_LIST_HEAD_SCM0
 302 %token <scm> MARKUP_LIST_HEAD_SCM0_LIST1
 303 %token <scm> MARKUP_LIST_HEAD_SCM0_SCM1_LIST2
 304 %token <scm> MARKUP_IDENTIFIER
 305 %token <scm> MUSIC_FUNCTION
 306 %token <scm> MUSIC_IDENTIFIER
 307 %token <scm> NOTENAME_PITCH
 308 %token <scm> NUMBER_IDENTIFIER
 309 %token <scm> OUTPUT_DEF_IDENTIFIER
 310 %token <scm> REAL
 311 %token <scm> RESTNAME
 312 %token <scm> SCM_IDENTIFIER
 313 %token <scm> SCM_TOKEN
 314 %token <scm> SCORE_IDENTIFIER
 315 %token <scm> STRING
 316 %token <scm> STRING_IDENTIFIER
 317 %token <scm> TONICNAME_PITCH
 318
 319
 320 %type <book> book_block
 321 %type <book> book_body
 322 %type <book> bookpart_block
 323 %type <book> bookpart_body
 324
 325 %type <i> bare_unsigned
 326 %type <scm> figured_bass_alteration
 327 %type <i> dots
 328 %type <i> exclamations
 329 %type <i> optional_rest
 330 %type <i> questions
 331 %type <i> script_dir
 332 %type <i> sub_quotes
 333 %type <i> sup_quotes
 334 %type <i> tremolo_type
 335
 336 /* Music */
 337 %type <scm> composite_music
 338 %type <scm> grouped_music_list
 339 %type <scm> music
 340 %type <scm> prefix_composite_music
 341 %type <scm> repeated_music
 342 %type <scm> sequential_music
 343 %type <scm> simple_music
 344 %type <scm> simultaneous_music
 345 %type <scm> chord_body
 346 %type <scm> chord_body_element
 347 %type <scm> command_element
 348 %type <scm> command_event
 349 %type <scm> context_change
 350 %type <scm> direction_less_event
 351 %type <scm> direction_reqd_event
 352 %type <scm> event_chord
 353 %type <scm> gen_text_def
 354 %type <scm> music_property_def
 355 %type <scm> note_chord_element
 356 %type <scm> post_event
 357 %type <scm> re_rhythmed_music
 358 %type <scm> relative_music
 359 %type <scm> simple_element
 360 %type <scm> simple_music_property_def
 361 %type <scm> string_number_event
 362 %type <scm> tempo_event
 363
 364 %type <outputdef> output_def_body
 365 %type <outputdef> output_def_head
 366 %type <outputdef> output_def_head_with_mode_switch
 367 %type <outputdef> output_def
 368 %type <outputdef> paper_block
 369
 370 %type <scm> alternative_music
 371 %type <scm> generic_prefix_music_scm
 372 %type <scm> music_list
 373 %type <scm> absolute_pitch
 374 %type <scm> assignment_id
 375 %type <scm> bare_number
 376 %type <scm> unsigned_number
 377 %type <scm> bass_figure
 378 %type <scm> figured_bass_modification
 379 %type <scm> br_bass_figure
 380 %type <scm> bass_number
 381 %type <scm> chord_body_elements
 382 %type <scm> chord_item
 383 %type <scm> chord_items
 384 %type <scm> chord_separator
 385 %type <scm> context_def_mod
 386 %type <scm> context_def_spec_block
 387 %type <scm> context_def_spec_body
 388 %type <scm> context_mod
 389 %type <scm> context_mod_list
 390 %type <scm> context_prop_spec
 391 %type <scm> direction_less_char
 392 %type <scm> duration_length
 393 %type <scm> embedded_scm
 394 %type <scm> figure_list
 395 %type <scm> figure_spec
 396 %type <scm> fraction
 397 %type <scm> full_markup
 398 %type <scm> full_markup_list
 399 %type <scm> function_scm_argument
 400 %type <scm> function_arglist
 401 %type <scm> function_arglist_music_last
 402 %type <scm> function_arglist_nonmusic_last
 403 %type <scm> function_arglist_nonmusic
 404 %type <scm> identifier_init
 405 %type <scm> lilypond_header
 406 %type <scm> lilypond_header_body
 407 %type <scm> lyric_element
 408 %type <scm> lyric_markup
 409 %type <scm> markup
 410 %type <scm> markup_braced_list
 411 %type <scm> markup_braced_list_body
 412 %type <scm> markup_composed_list
 413 %type <scm> markup_command_list
 414 %type <scm> markup_head_1_item
 415 %type <scm> markup_head_1_list
 416 %type <scm> markup_list
 417 %type <scm> markup_top
 418 %type <scm> mode_changing_head
 419 %type <scm> mode_changing_head_with_context
 420 %type <scm> multiplied_duration
 421 %type <scm> music_function_identifier_musicless_prefix
 422 %type <scm> music_function_event
 423 %type <scm> music_function_chord_body
 424 %type <scm> new_chord
 425 %type <scm> new_lyrics
 426 %type <scm> number_expression
 427 %type <scm> number_factor
 428 %type <scm> number_term
 429 %type <scm> object_id_setting
 430 %type <scm> octave_check
 431 %type <scm> optional_context_mod
 432 %type <scm> optional_id
 433 %type <scm> optional_notemode_duration
 434 %type <scm> pitch
 435 %type <scm> pitch_also_in_chords
 436 %type <scm> post_events
 437 %type <scm> property_operation
 438 %type <scm> property_path property_path_revved
 439 %type <scm> scalar
 440 %type <scm> script_abbreviation
 441 %type <scm> simple_chord_elements
 442 %type <scm> simple_markup
 443 %type <scm> simple_string
 444 %type <scm> steno_duration
 445 %type <scm> steno_pitch
 446 %type <scm> steno_tonic_pitch
 447 %type <scm> step_number
 448 %type <scm> step_numbers
 449 %type <scm> string
 450
 451 %type <score> score_block
 452 %type <score> score_body
 453
 454
 455 %left '-' '+'
 456
 457 /* We don't assign precedence to / and *, because we might need varied
 458 prec levels in different prods */
 459
 460 %left UNARY_MINUS
 461
 462 %%
 463
 464 lilypond:       /* empty */
 465         | lilypond toplevel_expression {
 466         }
 467         | lilypond assignment {
 468         }
 469         | lilypond error {
 470                 PARSER->error_level_ = 1;
 471         }
 472         | lilypond INVALID      {
 473                 PARSER->error_level_ = 1;
 474         }
 475         ;
 476
 477
 478 object_id_setting:
 479         OBJECTID STRING { $$ = $2; }
 480         ;
 481
 482 toplevel_expression:
 483         lilypond_header {
 484                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$defaultheader"), $1);
 485         }
 486         | book_block {
 487                 Book *book = $1;
 488                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-book-handler");
 489                 scm_call_2 (proc, PARSER->self_scm (), book->self_scm ());
 490                 book->unprotect ();
 491         }
 492         | bookpart_block {
 493                 Book *bookpart = $1;
 494                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-bookpart-handler");
 495                 scm_call_2 (proc, PARSER->self_scm (), bookpart->self_scm ());
 496                 bookpart->unprotect ();
 497         }
 498         | score_block {
 499                 Score *score = $1;
 500
 501                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-score-handler");
 502                 scm_call_2 (proc, PARSER->self_scm (), score->self_scm ());
 503                 score->unprotect ();
 504         }
 505         | composite_music {
 506                 Music *music = unsmob_music ($1);
 507                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-music-handler");
 508                 scm_call_2 (proc, PARSER->self_scm (), music->self_scm ());
 509         }
 510         | full_markup {
 511                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-text-handler");
 512                 scm_call_2 (proc, PARSER->self_scm (), scm_list_1 ($1));
 513         }
 514         | full_markup_list {
 515                 SCM proc = PARSER->lexer_->lookup_identifier ("toplevel-text-handler");
 516                 scm_call_2 (proc, PARSER->self_scm (), $1);
 517         }
 518         | output_def {
 519                 SCM id = SCM_EOL;
 520                 Output_def * od = $1;
 521
 522                 if ($1->c_variable ("is-paper") == SCM_BOOL_T)
 523                         id = ly_symbol2scm ("$defaultpaper");
 524                 else if ($1->c_variable ("is-midi") == SCM_BOOL_T)
 525                         id = ly_symbol2scm ("$defaultmidi");
 526                 else if ($1->c_variable ("is-layout") == SCM_BOOL_T)
 527                         id = ly_symbol2scm ("$defaultlayout");
 528
 529                 PARSER->lexer_->set_identifier (id, od->self_scm ());
 530                 od->unprotect();
 531         }
 532         ;
 533
 534 embedded_scm:
 535         SCM_TOKEN
 536         | SCM_IDENTIFIER
 537         ;
 538
 539
 540 lilypond_header_body:
 541         {
 542                 $$ = get_header (PARSER);
 543                 PARSER->lexer_->add_scope ($$);
 544         }
 545         | lilypond_header_body assignment  {
 546
 547         }
 548         ;
 549
 550 lilypond_header:
 551         HEADER '{' lilypond_header_body '}'     {
 552                 $$ = PARSER->lexer_->remove_scope ();
 553         }
 554         ;
 555
 556 /*
 557         DECLARATIONS
 558 */
 559 assignment_id:
 560         STRING          { $$ = $1; }
 561         | LYRICS_STRING { $$ = $1; }
 562         ;
 563
 564 assignment:
 565         assignment_id '=' identifier_init  {
 566                 PARSER->lexer_->set_identifier ($1, $3);
 567
 568 /*
 569  TODO: devise standard for protection in parser.
 570
 571   The parser stack lives on the C-stack, which means that
 572 all objects can be unprotected as soon as they're here.
 573
 574 */
 575         }
 576         | embedded_scm { }
 577         ;
 578
 579
 580 identifier_init:
 581         score_block {
 582                 $$ = $1->self_scm ();
 583                 $1->unprotect ();
 584         }
 585         | book_block {
 586                 $$ = $1->self_scm ();
 587                 $1->unprotect ();
 588         }
 589         | bookpart_block {
 590                 $$ = $1->self_scm ();
 591                 $1->unprotect ();
 592         }
 593         | output_def {
 594                 $$ = $1->self_scm ();
 595                 $1->unprotect ();
 596         }
 597         | context_def_spec_block {
 598                 $$ = $1;
 599         }
 600         | music  {
 601                 /* Hack: Create event-chord around standalone events.
 602                    Prevents the identifier from being interpreted as a post-event. */
 603                 Music *mus = unsmob_music ($1);
 604                 bool is_event = mus &&
 605                         (scm_memq (ly_symbol2scm ("event"), mus->get_property ("types"))
 606                                 != SCM_BOOL_F);
 607                 if (!is_event)
 608                         $$ = $1;
 609                 else
 610                         $$ = MAKE_SYNTAX ("event-chord", @$, scm_list_1 ($1));
 611         }
 612         | post_event {
 613                 $$ = $1;
 614         }
 615         | number_expression {
 616                 $$ = $1;
 617         }
 618         | string {
 619                 $$ = $1;
 620         }
 621         | embedded_scm {
 622                 $$ = $1;
 623         }
 624         | full_markup {
 625                 $$ = $1;
 626         }
 627         | DIGIT {
 628                 $$ = scm_from_int ($1);
 629         }
 630         ;
 631
 632 context_def_spec_block:
 633         CONTEXT '{' context_def_spec_body '}'
 634                 {
 635                 $$ = $3;
 636         }
 637         ;
 638
 639 context_def_spec_body:
 640         /**/ {
 641                 $$ = Context_def::make_scm ();
 642                 unsmob_context_def ($$)->origin ()->set_spot (@$);
 643         }
 644         | CONTEXT_DEF_IDENTIFIER {
 645                 $$ = $1;
 646                 unsmob_context_def ($$)->origin ()->set_spot (@$);
 647         }
 648         | context_def_spec_body GROBDESCRIPTIONS embedded_scm {
 649                 Context_def*td = unsmob_context_def ($$);
 650
 651                 for (SCM p = $3; scm_is_pair (p); p = scm_cdr (p)) {
 652                         SCM tag = scm_caar (p);
 653
 654                         /* TODO: should make new tag "grob-definition" ? */
 655                         td->add_context_mod (scm_list_3 (ly_symbol2scm ("assign"),
 656                                                         tag, scm_cons (scm_cdar (p), SCM_EOL)));
 657                 }
 658         }
 659         | context_def_spec_body context_mod {
 660                 unsmob_context_def ($$)->add_context_mod ($2);
 661         }
 662         ;
 663
 664
 665
 666 book_block:
 667         BOOK '{' book_body '}'  {
 668                 $$ = $3;
 669                 pop_paper (PARSER);
 670                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-book"), SCM_BOOL_F);
 671         }
 672         ;
 673
 674 /* FIXME:
 675    * Use 'handlers' like for toplevel-* stuff?
 676    * grok \layout and \midi?  */
 677 book_body:
 678         {
 679                 $$ = new Book;
 680                 init_papers (PARSER);
 681                 $$->origin ()->set_spot (@$);
 682                 $$->paper_ = dynamic_cast<Output_def*> (unsmob_output_def (PARSER->lexer_->lookup_identifier ("$defaultpaper"))->clone ());
 683                 $$->paper_->unprotect ();
 684                 push_paper (PARSER, $$->paper_);
 685                 $$->header_ = PARSER->lexer_->lookup_identifier ("$defaultheader");
 686                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-book"), $$->self_scm ());
 687                 PARSER->lexer_->set_identifier (ly_symbol2scm ("book-output-suffix"), SCM_BOOL_F);
 688                 PARSER->lexer_->set_identifier (ly_symbol2scm ("book-filename"), SCM_BOOL_F);
 689         }
 690         | BOOK_IDENTIFIER {
 691                 $$ = unsmob_book ($1);
 692                 $$->protect ();
 693                 $$->origin ()->set_spot (@$);
 694                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-book"), $1);
 695         }
 696         | book_body paper_block {
 697                 $$->paper_ = $2;
 698                 $2->unprotect ();
 699                 set_paper (PARSER, $2);
 700         }
 701         | book_body bookpart_block {
 702                 Book *bookpart = $2;
 703                 SCM proc = PARSER->lexer_->lookup_identifier ("book-bookpart-handler");
 704                 scm_call_2 (proc, $$->self_scm (), bookpart->self_scm ());
 705                 bookpart->unprotect ();
 706         }
 707         | book_body score_block {
 708                 Score *score = $2;
 709                 SCM proc = PARSER->lexer_->lookup_identifier ("book-score-handler");
 710                 scm_call_2 (proc, $$->self_scm (), score->self_scm ());
 711                 score->unprotect ();
 712         }
 713         | book_body composite_music {
 714                 Music *music = unsmob_music ($2);
 715                 SCM proc = PARSER->lexer_->lookup_identifier ("book-music-handler");
 716                 scm_call_3 (proc, PARSER->self_scm (), $$->self_scm (), music->self_scm ());
 717         }
 718         | book_body full_markup {
 719                 SCM proc = PARSER->lexer_->lookup_identifier ("book-text-handler");
 720                 scm_call_2 (proc, $$->self_scm (), scm_list_1 ($2));
 721         }
 722         | book_body full_markup_list {
 723                 SCM proc = PARSER->lexer_->lookup_identifier ("book-text-handler");
 724                 scm_call_2 (proc, $$->self_scm (), $2);
 725         }
 726         | book_body lilypond_header {
 727                 $$->header_ = $2;
 728         }
 729         | book_body error {
 730                 $$->paper_ = 0;
 731                 $$->scores_ = SCM_EOL;
 732                 $$->bookparts_ = SCM_EOL;
 733         }
 734         | book_body object_id_setting {
 735                 $$->user_key_ = ly_scm2string ($2);
 736         }
 737         ;
 738
 739 bookpart_block:
 740         BOOKPART '{' bookpart_body '}' {
 741                 $$ = $3;
 742                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), SCM_BOOL_F);
 743         }
 744         ;
 745
 746 bookpart_body:
 747         {
 748                 $$ = new Book;
 749                 $$->origin ()->set_spot (@$);
 750                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), $$->self_scm ());
 751         }
 752         | BOOK_IDENTIFIER {
 753                 $$ = unsmob_book ($1);
 754                 $$->protect ();
 755                 $$->origin ()->set_spot (@$);
 756                 PARSER->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), $1);
 757         }
 758         | bookpart_body paper_block {
 759                 $$->paper_ = $2;
 760                 $2->unprotect ();
 761         }
 762         | bookpart_body score_block {
 763                 Score *score = $2;
 764                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-score-handler");
 765                 scm_call_2 (proc, $$->self_scm (), score->self_scm ());
 766                 score->unprotect ();
 767         }
 768         | bookpart_body composite_music {
 769                 Music *music = unsmob_music ($2);
 770                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-music-handler");
 771                 scm_call_3 (proc, PARSER->self_scm (), $$->self_scm (), music->self_scm ());
 772         }
 773         | bookpart_body full_markup {
 774                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-text-handler");
 775                 scm_call_2 (proc, $$->self_scm (), scm_list_1 ($2));
 776         }
 777         | bookpart_body full_markup_list {
 778                 SCM proc = PARSER->lexer_->lookup_identifier ("bookpart-text-handler");
 779                 scm_call_2 (proc, $$->self_scm (), $2);
 780         }
 781         | bookpart_body lilypond_header {
 782                 $$->header_ = $2;
 783         }
 784         | bookpart_body error {
 785                 $$->paper_ = 0;
 786                 $$->scores_ = SCM_EOL;
 787         }
 788         | bookpart_body object_id_setting {
 789                 $$->user_key_ = ly_scm2string ($2);
 790         }
 791         ;
 792
 793 score_block:
 794         SCORE '{' score_body '}'        {
 795                 $$ = $3;
 796         }
 797         ;
 798
 799 score_body:
 800         music {
 801                 SCM m = $1;
 802                 SCM scorify = ly_lily_module_constant ("scorify-music");
 803                 SCM score = scm_call_2 (scorify, m, PARSER->self_scm ());
 804
 805                 // pass ownernship to C++ again.
 806                 $$ = unsmob_score (score);
 807                 $$->protect ();
 808                 $$->origin ()->set_spot (@$);
 809         }
 810         | SCORE_IDENTIFIER {
 811                 $$ = unsmob_score ($1);
 812                 $$->protect ();
 813                 $$->origin ()->set_spot (@$);
 814         }
 815         | score_body object_id_setting {
 816                 $$->user_key_ = ly_scm2string ($2);
 817         }
 818         | score_body lilypond_header    {
 819                 $$->set_header ($2);
 820         }
 821         | score_body output_def {
 822                 if ($2->lookup_variable (ly_symbol2scm ("is-paper")) == SCM_BOOL_T)
 823                 {
 824                         PARSER->parser_error (@2, _("\\paper cannot be used in \\score, use \\layout instead"));
 825
 826                 }
 827                 else
 828                 {
 829                         $$->add_output_def ($2);
 830                 }
 831                 $2->unprotect ();
 832         }
 833         | score_body error {
 834                 $$->error_found_ = true;
 835         }
 836         ;
 837
 838
 839 /*
 840         OUTPUT DEF
 841 */
 842
 843 paper_block:
 844         output_def {
 845                 $$ = $1;
 846                 if ($$->lookup_variable (ly_symbol2scm ("is-paper")) != SCM_BOOL_T)
 847                 {
 848                         PARSER->parser_error (@1, _ ("need \\paper for paper block"));
 849                         $1->unprotect ();
 850                         $$ = get_paper (PARSER);
 851                 }
 852         }
 853         ;
 854
 855
 856 output_def:
 857         output_def_body '}' {
 858                 $$ = $1;
 859
 860                 PARSER->lexer_->remove_scope ();
 861                 PARSER->lexer_->pop_state ();
 862         }
 863         ;
 864
 865 output_def_head:
 866         PAPER {
 867                 $$ = get_paper (PARSER);
 868                 $$->input_origin_ = @$;
 869                 PARSER->lexer_->add_scope ($$->scope_);
 870         }
 871         | MIDI    {
 872                 Output_def *p = get_midi (PARSER);
 873                 $$ = p;
 874                 PARSER->lexer_->add_scope (p->scope_);
 875         }
 876         | LAYOUT        {
 877                 Output_def *p = get_layout (PARSER);
 878
 879                 PARSER->lexer_->add_scope (p->scope_);
 880                 $$ = p;
 881         }
 882         ;
 883
 884 output_def_head_with_mode_switch:
 885         output_def_head {
 886                 PARSER->lexer_->push_initial_state ();
 887                 $$ = $1;
 888         }
 889         ;
 890
 891 output_def_body:
 892         output_def_head_with_mode_switch '{' {
 893                 $$ = $1;
 894                 $$->input_origin_.set_spot (@$);
 895         }
 896         | output_def_head_with_mode_switch '{' OUTPUT_DEF_IDENTIFIER    {
 897                 $1->unprotect ();
 898
 899                 Output_def *o = unsmob_output_def ($3);
 900                 o->input_origin_.set_spot (@$);
 901                 $$ = o;
 902                 $$->protect ();
 903                 PARSER->lexer_->remove_scope ();
 904                 PARSER->lexer_->add_scope (o->scope_);
 905         }
 906         | output_def_body assignment  {
 907
 908         }
 909         | output_def_body context_def_spec_block        {
 910                 assign_context_def ($$, $2);
 911         }
 912         | output_def_body error {
 913
 914         }
 915         ;
 916
 917 tempo_event:
 918         TEMPO steno_duration '=' bare_unsigned  {
 919                 $$ = MAKE_SYNTAX ("tempo", @$, SCM_BOOL_F, $2, scm_int2num ($4));
 920         }
 921         | TEMPO string steno_duration '=' bare_unsigned {
 922                 $$ = MAKE_SYNTAX ("tempo", @$, make_simple_markup($2), $3, scm_int2num ($5));
 923         }
 924         | TEMPO full_markup steno_duration '=' bare_unsigned    {
 925                 $$ = MAKE_SYNTAX ("tempo", @$, $2, $3, scm_int2num ($5));
 926         }
 927         | TEMPO string {
 928                 $$ = MAKE_SYNTAX ("tempoText", @$, make_simple_markup($2) );
 929         }
 930         | TEMPO full_markup {
 931                 $$ = MAKE_SYNTAX ("tempoText", @$, $2 );
 932         }
 933         ;
 934
 935 /*
 936 The representation of a  list is the
 937
 938   (LIST . LAST-CONS)
 939
 940  to have efficient append.  */
 941
 942 music_list:
 943         /* empty */ {
 944                 $$ = scm_cons (SCM_EOL, SCM_EOL);
 945         }
 946         | music_list music {
 947                 SCM s = $$;
 948                 SCM c = scm_cons ($2, SCM_EOL);
 949
 950                 if (scm_is_pair (scm_cdr (s)))
 951                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 952                 else
 953                         scm_set_car_x (s, c); /* set first cons */
 954                 scm_set_cdr_x (s, c);  /* remember last cell */
 955         }
 956         | music_list embedded_scm {
 957
 958         }
 959         | music_list error {
 960                 Music *m = MY_MAKE_MUSIC("Music", @$);
 961                 // ugh. code dup
 962                 m->set_property ("error-found", SCM_BOOL_T);
 963                 SCM s = $$;
 964                 SCM c = scm_cons (m->self_scm (), SCM_EOL);
 965                 m->unprotect (); /* UGH */
 966
 967                 if (scm_is_pair (scm_cdr (s)))
 968                         scm_set_cdr_x (scm_cdr (s), c); /* append */
 969                 else
 970                         scm_set_car_x (s, c); /* set first cons */
 971                 scm_set_cdr_x (s, c);  /* remember last cell */
 972         }
 973         ;
 974
 975 music:
 976         simple_music
 977         | composite_music
 978         ;
 979
 980 alternative_music:
 981         /* empty */ {
 982                 $$ = SCM_EOL;
 983         }
 984         | ALTERNATIVE '{' music_list '}' {
 985                 $$ = scm_car ($3);
 986         }
 987         ;
 988
 989
 990 repeated_music:
 991         REPEAT simple_string unsigned_number music alternative_music
 992         {
 993                 $$ = MAKE_SYNTAX ("repeat", @$, $2, $3, $4, $5);
 994         }
 995         ;
 996
 997 sequential_music:
 998         SEQUENTIAL '{' music_list '}'           {
 999                 $$ = MAKE_SYNTAX ("sequential-music", @$, scm_car ($3));
1000         }
1001         | '{' music_list '}'            {
1002                 $$ = MAKE_SYNTAX ("sequential-music", @$, scm_car ($2));
1003         }
1004         ;
1005
1006 simultaneous_music:
1007         SIMULTANEOUS '{' music_list '}'{
1008                 $$ = MAKE_SYNTAX ("simultaneous-music", @$, scm_car ($3));
1009         }
1010         | DOUBLE_ANGLE_OPEN music_list DOUBLE_ANGLE_CLOSE       {
1011                 $$ = MAKE_SYNTAX ("simultaneous-music", @$, scm_car ($2));
1012         }
1013         ;
1014
1015 simple_music:
1016         event_chord
1017         | MUSIC_IDENTIFIER
1018         | music_property_def
1019         | context_change
1020         ;
1021
1022 optional_context_mod:
1023         /**/ { $$ = SCM_EOL; }
1024         | WITH { PARSER->lexer_->push_initial_state (); }
1025         '{' context_mod_list '}'
1026         {
1027                 PARSER->lexer_->pop_state ();
1028                 $$ = $4;
1029         }
1030         ;
1031
1032 context_mod_list:
1033         /* */  { $$ = SCM_EOL; }
1034         | context_mod_list context_mod  {
1035                  $$ = scm_cons ($2, $1);
1036         }
1037         ;
1038
1039 composite_music:
1040         prefix_composite_music { $$ = $1; }
1041         | grouped_music_list { $$ = $1; }
1042         ;
1043
1044 grouped_music_list:
1045         simultaneous_music              { $$ = $1; }
1046         | sequential_music              { $$ = $1; }
1047         ;
1048
1049 function_scm_argument:
1050         embedded_scm
1051         | simple_string
1052         ;
1053
1054 /* An argument list. If a function \foo expects scm scm music, then the lexer expands \foo into the token sequence:
1055  MUSIC_FUNCTION EXPECT_MUSIC EXPECT_SCM EXPECT_SCM
1056 and this rule returns the reversed list of arguments. */
1057
1058 function_arglist_music_last:
1059         EXPECT_MUSIC function_arglist music {
1060                 $$ = scm_cons ($3, $2);
1061         }
1062         ;
1063
1064 function_arglist_nonmusic_last:
1065         EXPECT_MARKUP function_arglist full_markup {
1066                 $$ = scm_cons ($3, $2);
1067         }
1068         | EXPECT_MARKUP function_arglist simple_string {
1069                 $$ = scm_cons ($3, $2);
1070         }
1071         | EXPECT_SCM function_arglist function_scm_argument {
1072                 $$ = scm_cons ($3, $2);
1073         }
1074         ;
1075
1076 function_arglist_nonmusic: EXPECT_NO_MORE_ARGS {
1077                 $$ = SCM_EOL;
1078         }
1079         | EXPECT_MARKUP function_arglist_nonmusic full_markup {
1080                 $$ = scm_cons ($3, $2);
1081         }
1082         | EXPECT_MARKUP function_arglist_nonmusic simple_string {
1083                 $$ = scm_cons ($3, $2);
1084         }
1085         | EXPECT_SCM function_arglist_nonmusic function_scm_argument {
1086                 $$ = scm_cons ($3, $2);
1087         }
1088         ;
1089
1090 function_arglist: EXPECT_NO_MORE_ARGS {
1091                 /* This is for 0-ary functions, so they don't need to
1092                    read a lookahead token */
1093                 $$ = SCM_EOL;
1094         }
1095         | function_arglist_music_last
1096         | function_arglist_nonmusic_last
1097         ;
1098
1099 generic_prefix_music_scm:
1100         MUSIC_FUNCTION function_arglist {
1101                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
1102         }
1103         ;
1104
1105
1106 optional_id:
1107         /**/ { $$ = SCM_EOL; }
1108         | '=' simple_string {
1109                 $$ = $2;
1110         }
1111         ;
1112
1113
1114 prefix_composite_music:
1115         generic_prefix_music_scm {
1116                 $$ = run_music_function (PARSER, $1);
1117         }
1118         | CONTEXT simple_string optional_id optional_context_mod music {
1119                 $$ = MAKE_SYNTAX ("context-specification", @$, $2, $3, $5, $4, SCM_BOOL_F);
1120         }
1121         | NEWCONTEXT simple_string optional_id optional_context_mod music {
1122                 $$ = MAKE_SYNTAX ("context-specification", @$, $2, $3, $5, $4, SCM_BOOL_T);
1123         }
1124
1125         | TIMES fraction music {
1126                 $$ = MAKE_SYNTAX ("time-scaled-music", @$, $2, $3);
1127         }
1128         | repeated_music                { $$ = $1; }
1129         | TRANSPOSE pitch_also_in_chords pitch_also_in_chords music {
1130                 Pitch from = *unsmob_pitch ($2);
1131                 Pitch to = *unsmob_pitch ($3);
1132                 SCM pitch = pitch_interval (from, to).smobbed_copy ();
1133                 $$ = MAKE_SYNTAX ("transpose-music", @$, pitch, $4);
1134         }
1135         | mode_changing_head grouped_music_list {
1136                 if ($1 == ly_symbol2scm ("chords"))
1137                 {
1138                   $$ = MAKE_SYNTAX ("unrelativable-music", @$, $2);
1139                 }
1140                 else
1141                 {
1142                   $$ = $2;
1143                 }
1144                 PARSER->lexer_->pop_state ();
1145         }
1146         | mode_changing_head_with_context optional_context_mod grouped_music_list {
1147                 $$ = MAKE_SYNTAX ("context-specification", @$, $1, SCM_EOL, $3, $2, SCM_BOOL_T);
1148                 if ($1 == ly_symbol2scm ("ChordNames"))
1149                 {
1150                   $$ = MAKE_SYNTAX ("unrelativable-music", @$, $$);
1151                 }
1152                 PARSER->lexer_->pop_state ();
1153         }
1154         | relative_music        { $$ = $1; }
1155         | re_rhythmed_music     { $$ = $1; }
1156         ;
1157
1158 mode_changing_head:
1159         NOTEMODE {
1160                 SCM nn = PARSER->lexer_->lookup_identifier ("pitchnames");
1161                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
1162
1163                 $$ = ly_symbol2scm ("notes");
1164         }
1165         | DRUMMODE
1166                 {
1167                 SCM nn = PARSER->lexer_->lookup_identifier ("drumPitchNames");
1168                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
1169
1170                 $$ = ly_symbol2scm ("drums");
1171         }
1172         | FIGUREMODE {
1173                 PARSER->lexer_->push_figuredbass_state ();
1174
1175                 $$ = ly_symbol2scm ("figures");
1176         }
1177         | CHORDMODE {
1178                 SCM nn = PARSER->lexer_->lookup_identifier ("chordmodifiers");
1179                 PARSER->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1180                 nn = PARSER->lexer_->lookup_identifier ("pitchnames");
1181                 PARSER->lexer_->push_chord_state (alist_to_hashq (nn));
1182                 $$ = ly_symbol2scm ("chords");
1183
1184         }
1185         | LYRICMODE
1186                 { PARSER->lexer_->push_lyric_state ();
1187                 $$ = ly_symbol2scm ("lyrics");
1188         }
1189         ;
1190
1191 mode_changing_head_with_context:
1192         DRUMS {
1193                 SCM nn = PARSER->lexer_->lookup_identifier ("drumPitchNames");
1194                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
1195
1196                 $$ = ly_symbol2scm ("DrumStaff");
1197         }
1198         | FIGURES {
1199                 PARSER->lexer_->push_figuredbass_state ();
1200
1201                 $$ = ly_symbol2scm ("FiguredBass");
1202         }
1203         | CHORDS {
1204                 SCM nn = PARSER->lexer_->lookup_identifier ("chordmodifiers");
1205                 PARSER->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
1206                 nn = PARSER->lexer_->lookup_identifier ("pitchnames");
1207                 PARSER->lexer_->push_chord_state (alist_to_hashq (nn));
1208                 $$ = ly_symbol2scm ("ChordNames");
1209         }
1210         | LYRICS
1211                 { PARSER->lexer_->push_lyric_state ();
1212                 $$ = ly_symbol2scm ("Lyrics");
1213         }
1214         ;
1215
1216
1217 relative_music:
1218         RELATIVE absolute_pitch music {
1219                 Pitch start = *unsmob_pitch ($2);
1220                 $$ = make_music_relative (start, $3, @$);
1221         }
1222         | RELATIVE composite_music {
1223                 Pitch middle_c (0, 0, 0);
1224                 $$ = make_music_relative (middle_c, $2, @$);
1225         }
1226         ;
1227
1228 new_lyrics:
1229         ADDLYRICS { PARSER->lexer_->push_lyric_state (); }
1230         /*cont */
1231         grouped_music_list {
1232         /* Can also use music at the expensive of two S/Rs similar to
1233            \repeat \alternative */
1234                 PARSER->lexer_->pop_state ();
1235
1236                 $$ = scm_cons ($3, SCM_EOL);
1237         }
1238         | new_lyrics ADDLYRICS {
1239                 PARSER->lexer_->push_lyric_state ();
1240         } grouped_music_list {
1241                 PARSER->lexer_->pop_state ();
1242                 $$ = scm_cons ($4, $1);
1243         }
1244         ;
1245
1246 re_rhythmed_music:
1247         grouped_music_list new_lyrics {
1248                 $$ = MAKE_SYNTAX ("add-lyrics", @$, $1, scm_reverse_x ($2, SCM_EOL));
1249         }
1250         | LYRICSTO simple_string {
1251                 PARSER->lexer_->push_lyric_state ();
1252         } music {
1253                 PARSER->lexer_->pop_state ();
1254                 $$ = MAKE_SYNTAX ("lyric-combine", @$, $2, $4);
1255         }
1256         ;
1257
1258 context_change:
1259         CHANGE STRING '=' STRING  {
1260                 $$ = MAKE_SYNTAX ("context-change", @$, scm_string_to_symbol ($2), $4);
1261         }
1262         ;
1263
1264
1265 property_path_revved:
1266         embedded_scm {
1267                 $$ = scm_cons ($1, SCM_EOL);
1268         }
1269         | property_path_revved embedded_scm {
1270                 $$ = scm_cons ($2, $1);
1271         }
1272         ;
1273
1274 property_path:
1275         property_path_revved  {
1276                 $$ = scm_reverse_x ($1, SCM_EOL);
1277         }
1278         ;
1279
1280 property_operation:
1281         STRING '=' scalar {
1282                 $$ = scm_list_3 (ly_symbol2scm ("assign"),
1283                         scm_string_to_symbol ($1), $3);
1284         }
1285         | UNSET simple_string {
1286                 $$ = scm_list_2 (ly_symbol2scm ("unset"),
1287                         scm_string_to_symbol ($2));
1288         }
1289         | OVERRIDE simple_string property_path '=' scalar {
1290                 $$ = scm_append (scm_list_2 (scm_list_3 (ly_symbol2scm ("push"),
1291                                                         scm_string_to_symbol ($2), $5),
1292                                              $3));
1293         }
1294         | REVERT simple_string embedded_scm {
1295                 $$ = scm_list_3 (ly_symbol2scm ("pop"),
1296                         scm_string_to_symbol ($2), $3);
1297         }
1298         ;
1299
1300 context_def_mod:
1301         CONSISTS { $$ = ly_symbol2scm ("consists"); }
1302         | REMOVE { $$ = ly_symbol2scm ("remove"); }
1303
1304         | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
1305         | DEFAULTCHILD { $$ = ly_symbol2scm ("default-child"); }
1306         | DENIES { $$ = ly_symbol2scm ("denies"); }
1307
1308         | ALIAS { $$ = ly_symbol2scm ("alias"); }
1309         | TYPE { $$ = ly_symbol2scm ("translator-type"); }
1310         | DESCRIPTION { $$ = ly_symbol2scm ("description"); }
1311         | NAME { $$ = ly_symbol2scm ("context-name"); }
1312         ;
1313
1314 context_mod:
1315         property_operation { $$ = $1; }
1316         | context_def_mod STRING {
1317                 $$ = scm_list_2 ($1, $2);
1318         }
1319         ;
1320
1321 context_prop_spec:
1322         simple_string {
1323                 if (!is_regular_identifier ($1))
1324                 {
1325                         @$.error (_("Grob name should be alphanumeric"));
1326                 }
1327
1328                 $$ = scm_list_2 (ly_symbol2scm ("Bottom"),
1329                         scm_string_to_symbol ($1));
1330         }
1331         | simple_string '.' simple_string {
1332                 $$ = scm_list_2 (scm_string_to_symbol ($1),
1333                         scm_string_to_symbol ($3));
1334         }
1335         ;
1336
1337 simple_music_property_def:
1338         OVERRIDE context_prop_spec property_path '=' scalar {
1339                 $$ = scm_append (scm_list_2 (scm_list_n (scm_car ($2),
1340                                 ly_symbol2scm ("OverrideProperty"),
1341                                 scm_cadr ($2),
1342                                 $5, SCM_UNDEFINED),
1343                                 $3));
1344         }
1345         | REVERT context_prop_spec embedded_scm {
1346                 $$ = scm_list_4 (scm_car ($2),
1347                         ly_symbol2scm ("RevertProperty"),
1348                         scm_cadr ($2),
1349                         $3);
1350         }
1351         | SET context_prop_spec '=' scalar {
1352                 $$ = scm_list_4 (scm_car ($2),
1353                         ly_symbol2scm ("PropertySet"),
1354                         scm_cadr ($2),
1355                         $4);
1356         }
1357         | UNSET context_prop_spec {
1358                 $$ = scm_list_3 (scm_car ($2),
1359                         ly_symbol2scm ("PropertyUnset"),
1360                         scm_cadr ($2));
1361         }
1362         ;
1363
1364 music_property_def:
1365         simple_music_property_def {
1366                 $$ = LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("property-operation"), scm_cons (PARSER->self_scm (), scm_cons2 (make_input (@$), SCM_BOOL_F, $1)));
1367         }
1368         | ONCE simple_music_property_def {
1369                 $$ = LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("property-operation"), scm_cons (PARSER->self_scm (), scm_cons2 (make_input (@$), SCM_BOOL_T, $2)));
1370         }
1371         ;
1372
1373 string:
1374         STRING {
1375                 $$ = $1;
1376         }
1377         | STRING_IDENTIFIER {
1378                 $$ = $1;
1379         }
1380         | string '+' string {
1381                 $$ = scm_string_append (scm_list_2 ($1, $3));
1382         }
1383         ;
1384
1385 simple_string: STRING {
1386                 $$ = $1;
1387         }
1388         | LYRICS_STRING {
1389                 $$ = $1;
1390         }
1391         | STRING_IDENTIFIER {
1392                 $$ = $1;
1393         }
1394         ;
1395
1396 scalar: string {
1397                 $$ = $1;
1398         }
1399         | LYRICS_STRING {
1400                 $$ = $1;
1401         }
1402         | bare_number {
1403                 $$ = $1;
1404         }
1405         | embedded_scm {
1406                 $$ = $1;
1407         }
1408         | full_markup {
1409                 $$ = $1;
1410         }
1411         | DIGIT {
1412                 $$ = scm_from_int ($1);
1413         }
1414         ;
1415
1416 event_chord:
1417         /* TODO: Create a special case that avoids the creation of
1418            EventChords around simple_elements that have no post_events?
1419          */
1420         simple_chord_elements post_events       {
1421                 SCM elts = ly_append2 ($1, scm_reverse_x ($2, SCM_EOL));
1422
1423                 Input i;
1424                 /* why is this giving wrong start location? -ns
1425                  * i = @$; */
1426                 i.set_location (@1, @2);
1427                 $$ = MAKE_SYNTAX ("event-chord", i, elts);
1428         }
1429         | CHORD_REPETITION optional_notemode_duration post_events {
1430                 Input i;
1431                 i.set_location (@1, @3);
1432                 $$ = MAKE_SYNTAX ("repetition-chord", i,
1433                                   PARSER->lexer_->chord_repetition_.last_chord_,
1434                                   PARSER->lexer_->chord_repetition_.repetition_function_,
1435                                   $2, $3);
1436         }
1437         | MULTI_MEASURE_REST optional_notemode_duration post_events {
1438                 Input i;
1439                 i.set_location (@1, @3);
1440                 $$ = MAKE_SYNTAX ("multi-measure-rest", i, $2, $3);
1441         }
1442         | command_element
1443         /* note chord elements are memorized into
1444            PARSER->lexer_->chord_repetition_ so that the chord repetition
1445            mechanism copy them when a chord repetition symbol is found
1446         */
1447         | note_chord_element    {
1448                 PARSER->lexer_->chord_repetition_.last_chord_ = $$;
1449         }
1450         ;
1451
1452
1453 note_chord_element:
1454         chord_body optional_notemode_duration post_events
1455         {
1456                 Music *m = unsmob_music ($1);
1457                 SCM dur = unsmob_duration ($2)->smobbed_copy ();
1458                 SCM es = m->get_property ("elements");
1459                 SCM postevs = scm_reverse_x ($3, SCM_EOL);
1460
1461                 for (SCM s = es; scm_is_pair (s); s = scm_cdr (s))
1462                   unsmob_music (scm_car (s))->set_property ("duration", dur);
1463                 es = ly_append2 (es, postevs);
1464
1465                 m-> set_property ("elements", es);
1466                 m->set_spot (@$);
1467                 $$ = m->self_scm ();
1468         }
1469         ;
1470
1471 chord_body:
1472         ANGLE_OPEN chord_body_elements ANGLE_CLOSE
1473         {
1474                 $$ = MAKE_SYNTAX ("event-chord", @$, scm_reverse_x ($2, SCM_EOL));
1475         }
1476         ;
1477
1478 chord_body_elements:
1479         /* empty */             { $$ = SCM_EOL; }
1480         | chord_body_elements chord_body_element {
1481                 $$ = scm_cons ($2, $1);
1482         }
1483         ;
1484
1485 chord_body_element:
1486         pitch exclamations questions octave_check post_events
1487         {
1488                 int q = $3;
1489                 int ex = $2;
1490                 SCM check = $4;
1491                 SCM post = $5;
1492
1493                 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
1494                 n->set_property ("pitch", $1);
1495                 if (q % 2)
1496                         n->set_property ("cautionary", SCM_BOOL_T);
1497                 if (ex % 2 || q % 2)
1498                         n->set_property ("force-accidental", SCM_BOOL_T);
1499
1500                 if (scm_is_pair (post)) {
1501                         SCM arts = scm_reverse_x (post, SCM_EOL);
1502                         n->set_property ("articulations", arts);
1503                 }
1504                 if (scm_is_number (check))
1505                 {
1506                         int q = scm_to_int (check);
1507                         n->set_property ("absolute-octave", scm_from_int (q-1));
1508                 }
1509
1510                 $$ = n->unprotect ();
1511         }
1512         | DRUM_PITCH post_events {
1513                 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
1514                 n->set_property ("duration", $2);
1515                 n->set_property ("drum-type", $1);
1516
1517                 if (scm_is_pair ($2)) {
1518                         SCM arts = scm_reverse_x ($2, SCM_EOL);
1519                         n->set_property ("articulations", arts);
1520                 }
1521                 $$ = n->unprotect ();
1522         }
1523         | music_function_chord_body {
1524                 $$ = run_music_function (PARSER, $1);
1525         }
1526         ;
1527
1528 music_function_identifier_musicless_prefix: MUSIC_FUNCTION {
1529                 SCM sig = scm_object_property (yylval.scm, ly_symbol2scm ("music-function-signature"));
1530                 if (scm_is_pair (sig) && to_boolean (scm_memq (ly_music_p_proc, scm_cdr (scm_reverse (sig)))))
1531                 {
1532                         PARSER->parser_error (@$, "Music function applied to event may not have a Music argument, except as the last argument.");
1533                 }
1534         }
1535         ;
1536
1537 music_function_chord_body:
1538         /* We could allow chord functions to have multiple music arguments,
1539            but it's more consistent with music_function_event if we
1540            prohibit it here too */
1541         music_function_identifier_musicless_prefix EXPECT_MUSIC function_arglist_nonmusic chord_body_element {
1542                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($3, scm_list_1 ($4)));
1543         }
1544         | music_function_identifier_musicless_prefix function_arglist_nonmusic {
1545                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
1546         }
1547         ;
1548
1549 music_function_event:
1550         /* Post-events can only have the last argument as music, without this
1551            restriction we get a shift/reduce conflict from e.g.
1552            c8-\partcombine c8 -. */
1553         music_function_identifier_musicless_prefix EXPECT_MUSIC function_arglist_nonmusic post_event {
1554                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($3, scm_list_1 ($4)));
1555         }
1556         | music_function_identifier_musicless_prefix function_arglist_nonmusic {
1557                 $$ = ly_append2 (scm_list_2 ($1, make_input (@$)), scm_reverse_x ($2, SCM_EOL));
1558         }
1559         ;
1560
1561 command_element:
1562         command_event {
1563                 $$ = $1;
1564         }
1565         | SKIP duration_length {
1566                 $$ = MAKE_SYNTAX ("skip-music", @$, $2);
1567         }
1568         | E_BRACKET_OPEN {
1569                 Music *m = MY_MAKE_MUSIC ("LigatureEvent", @$);
1570                 m->set_property ("span-direction", scm_from_int (START));
1571                 $$ = m->unprotect();
1572         }
1573         | E_BRACKET_CLOSE {
1574                 Music *m = MY_MAKE_MUSIC ("LigatureEvent", @$);
1575                 m->set_property ("span-direction", scm_from_int (STOP));
1576                 $$ = m->unprotect ();
1577         }
1578         | E_BACKSLASH {
1579                 $$ = MAKE_SYNTAX ("voice-separator", @$, SCM_UNDEFINED);
1580         }
1581         | '|'      {
1582                 SCM pipe = PARSER->lexer_->lookup_identifier ("pipeSymbol");
1583
1584                 Music *m = unsmob_music (pipe);
1585                 if (m)
1586                 {
1587                         m = m->clone ();
1588                         m->set_spot (@$);
1589                         $$ = m->unprotect ();
1590                 }
1591                 else
1592                         $$ = MAKE_SYNTAX ("bar-check", @$, SCM_UNDEFINED);
1593
1594         }
1595         | PARTIAL duration_length       {
1596                 Moment m = - unsmob_duration ($2)->get_length ();
1597                 $$ = MAKE_SYNTAX ("property-operation", @$, SCM_BOOL_F, ly_symbol2scm ("Timing"), ly_symbol2scm ("PropertySet"), ly_symbol2scm ("measurePosition"), m.smobbed_copy ());
1598                 $$ = MAKE_SYNTAX ("context-specification", @$, ly_symbol2scm ("Score"), SCM_BOOL_F, $$, SCM_EOL, SCM_BOOL_F);
1599         }
1600
1601         | TIME_T fraction  {
1602                 SCM proc = ly_lily_module_constant ("make-time-signature-set");
1603
1604                 $$ = scm_apply_2   (proc, scm_car ($2), scm_cdr ($2), SCM_EOL);
1605         }
1606         | MARK scalar {
1607                 SCM proc = ly_lily_module_constant ("make-mark-set");
1608
1609                 $$ = scm_call_1 (proc, $2);
1610         }
1611         ;
1612
1613 command_event:
1614         E_TILDE {
1615                 $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent", @$)->unprotect ();
1616         }
1617         | MARK DEFAULT  {
1618                 Music *m = MY_MAKE_MUSIC ("MarkEvent", @$);
1619                 $$ = m->unprotect ();
1620         }
1621         | tempo_event {
1622                 $$ = $1;
1623         }
1624         | KEY DEFAULT {
1625                 Music *key = MY_MAKE_MUSIC ("KeyChangeEvent", @$);
1626                 $$ = key->unprotect ();
1627         }
1628         | KEY NOTENAME_PITCH SCM_IDENTIFIER     {
1629
1630                 Music *key = MY_MAKE_MUSIC ("KeyChangeEvent", @$);
1631                 if (scm_ilength ($3) > 0)
1632                 {
1633                         key->set_property ("pitch-alist", $3);
1634                         key->set_property ("tonic", Pitch (0, 0, 0).smobbed_copy ());
1635                         key->transpose (* unsmob_pitch ($2));
1636                 } else {
1637                         PARSER->parser_error (@3, _ ("second argument must be pitch list"));
1638                 }
1639
1640                 $$ = key->unprotect ();
1641         }
1642         ;
1643
1644
1645 post_events:
1646         /* empty */ {
1647                 $$ = SCM_EOL;
1648         }
1649         | post_events post_event {
1650                 unsmob_music ($2)->set_spot (@2);
1651                 $$ = scm_cons ($2, $$);
1652         }
1653         ;
1654
1655 post_event:
1656         direction_less_event {
1657                 $$ = $1;
1658         }
1659         | '-' music_function_event {
1660                 $$ = run_music_function (PARSER, $2);
1661         }
1662         | HYPHEN {
1663                 if (!PARSER->lexer_->is_lyric_state ())
1664                         PARSER->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
1665                 $$ = MY_MAKE_MUSIC ("HyphenEvent", @$)->unprotect ();
1666         }
1667         | EXTENDER {
1668                 if (!PARSER->lexer_->is_lyric_state ())
1669                         PARSER->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
1670                 $$ = MY_MAKE_MUSIC ("ExtenderEvent", @$)->unprotect ();
1671         }
1672         | script_dir direction_reqd_event {
1673                 if ($1)
1674                 {
1675                         Music *m = unsmob_music ($2);
1676                         m->set_property ("direction", scm_from_int ($1));
1677                 }
1678                 $$ = $2;
1679         }
1680         | script_dir direction_less_event {
1681                 if ($1)
1682                 {
1683                         Music *m = unsmob_music ($2);
1684                         m->set_property ("direction", scm_from_int ($1));
1685                 }
1686                 $$ = $2;
1687         }
1688         | string_number_event
1689         ;
1690
1691 string_number_event:
1692         E_UNSIGNED {
1693                 Music *s = MY_MAKE_MUSIC ("StringNumberEvent", @$);
1694                 s->set_property ("string-number", scm_from_int ($1));
1695                 $$ = s->unprotect ();
1696         }
1697         ;
1698
1699 direction_less_char:
1700         '['  {
1701                 $$ = ly_symbol2scm ("bracketOpenSymbol");
1702         }
1703         | ']'  {
1704                 $$ = ly_symbol2scm ("bracketCloseSymbol");
1705         }
1706         | '~'  {
1707                 $$ = ly_symbol2scm ("tildeSymbol");
1708         }
1709         | '('  {
1710                 $$ = ly_symbol2scm ("parenthesisOpenSymbol");
1711         }
1712         | ')'  {
1713                 $$ = ly_symbol2scm ("parenthesisCloseSymbol");
1714         }
1715         | E_EXCLAMATION  {
1716                 $$ = ly_symbol2scm ("escapedExclamationSymbol");
1717         }
1718         | E_OPEN  {
1719                 $$ = ly_symbol2scm ("escapedParenthesisOpenSymbol");
1720         }
1721         | E_CLOSE  {
1722                 $$ = ly_symbol2scm ("escapedParenthesisCloseSymbol");
1723         }
1724         | E_ANGLE_CLOSE  {
1725                 $$ = ly_symbol2scm ("escapedBiggerSymbol");
1726         }
1727         | E_ANGLE_OPEN  {
1728                 $$ = ly_symbol2scm ("escapedSmallerSymbol");
1729         }
1730         ;
1731
1732 direction_less_event:
1733         direction_less_char {
1734                 SCM predefd = PARSER->lexer_->lookup_identifier_symbol ($1);
1735                 Music *m = 0;
1736                 if (unsmob_music (predefd))
1737                 {
1738                         m = unsmob_music (predefd)->clone ();
1739                         m->set_spot (@$);
1740                 }
1741                 else
1742                 {
1743                         m = MY_MAKE_MUSIC ("Music", @$);
1744                 }
1745                 $$ = m->unprotect ();
1746         }
1747         | EVENT_IDENTIFIER      {
1748                 $$ = $1;
1749         }
1750         | tremolo_type  {
1751                Music *a = MY_MAKE_MUSIC ("TremoloEvent", @$);
1752                a->set_property ("tremolo-type", scm_from_int ($1));
1753                $$ = a->unprotect ();
1754         }
1755         ;
1756
1757 direction_reqd_event:
1758         gen_text_def {
1759                 $$ = $1;
1760         }
1761         | script_abbreviation {
1762                 SCM s = PARSER->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
1763                 Music *a = MY_MAKE_MUSIC ("ArticulationEvent", @$);
1764                 if (scm_is_string (s))
1765                         a->set_property ("articulation-type", s);
1766                 else PARSER->parser_error (@1, _ ("expecting string as script definition"));
1767                 $$ = a->unprotect ();
1768         }
1769         ;
1770
1771 octave_check:
1772         /**/ { $$ = SCM_EOL; }
1773         | '='  { $$ = scm_from_int (0); }
1774         | '=' sub_quotes { $$ = scm_from_int (-$2); }
1775         | '=' sup_quotes { $$ = scm_from_int ($2); }
1776         ;
1777
1778 sup_quotes:
1779         '\'' {
1780                 $$ = 1;
1781         }
1782         | sup_quotes '\'' {
1783                 $$ ++;
1784         }
1785         ;
1786
1787 sub_quotes:
1788         ',' {
1789                 $$ = 1;
1790         }
1791         | sub_quotes ',' {
1792                 $$++;
1793         }
1794         ;
1795
1796 steno_pitch:
1797         NOTENAME_PITCH  {
1798                 $$ = $1;
1799         }
1800         | NOTENAME_PITCH sup_quotes     {
1801                 Pitch p = *unsmob_pitch ($1);
1802                 p = p.transposed (Pitch ($2,0,0));
1803                 $$ = p.smobbed_copy ();
1804         }
1805         | NOTENAME_PITCH sub_quotes      {
1806                 Pitch p =* unsmob_pitch ($1);
1807                 p = p.transposed (Pitch (-$2,0,0));
1808                 $$ = p.smobbed_copy ();
1809         }
1810         ;
1811
1812 /*
1813 ugh. duplication
1814 */
1815
1816 steno_tonic_pitch:
1817         TONICNAME_PITCH {
1818                 $$ = $1;
1819         }
1820         | TONICNAME_PITCH sup_quotes    {
1821                 Pitch p = *unsmob_pitch ($1);
1822                 p = p.transposed (Pitch ($2,0,0));
1823                 $$ = p.smobbed_copy ();
1824         }
1825         | TONICNAME_PITCH sub_quotes     {
1826                 Pitch p = *unsmob_pitch ($1);
1827
1828                 p = p.transposed (Pitch (-$2,0,0));
1829                 $$ = p.smobbed_copy ();
1830         }
1831         ;
1832
1833 pitch:
1834         steno_pitch {
1835                 $$ = $1;
1836         }
1837         ;
1838
1839 pitch_also_in_chords:
1840         pitch
1841         | steno_tonic_pitch
1842         ;
1843
1844 gen_text_def:
1845         full_markup {
1846                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
1847                 t->set_property ("text", $1);
1848                 $$ = t->unprotect ();
1849         }
1850         | string {
1851                 Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
1852                 t->set_property ("text",
1853                         make_simple_markup ($1));
1854                 $$ = t->unprotect ();
1855         }
1856         | DIGIT {
1857                 Music *t = MY_MAKE_MUSIC ("FingeringEvent", @$);
1858                 t->set_property ("digit", scm_from_int ($1));
1859                 $$ = t->unprotect ();
1860         }
1861         ;
1862
1863 script_abbreviation:
1864         '^'             {
1865                 $$ = scm_from_locale_string ("Hat");
1866         }
1867         | '+'           {
1868                 $$ = scm_from_locale_string ("Plus");
1869         }
1870         | '-'           {
1871                 $$ = scm_from_locale_string ("Dash");
1872         }
1873         | '|'           {
1874                 $$ = scm_from_locale_string ("Bar");
1875         }
1876         | ANGLE_CLOSE   {
1877                 $$ = scm_from_locale_string ("Larger");
1878         }
1879         | '.'           {
1880                 $$ = scm_from_locale_string ("Dot");
1881         }
1882         | '_' {
1883                 $$ = scm_from_locale_string ("Underscore");
1884         }
1885         ;
1886
1887 script_dir:
1888         '_'     { $$ = DOWN; }
1889         | '^'   { $$ = UP; }
1890         | '-'   { $$ = CENTER; }
1891         ;
1892
1893
1894 absolute_pitch:
1895         steno_pitch     {
1896                 $$ = $1;
1897         }
1898         ;
1899
1900 duration_length:
1901         multiplied_duration {
1902                 $$ = $1;
1903         }
1904         ;
1905
1906 optional_notemode_duration:
1907         {
1908                 Duration dd = PARSER->default_duration_;
1909                 $$ = dd.smobbed_copy ();
1910         }
1911         | multiplied_duration   {
1912                 $$ = $1;
1913                 PARSER->default_duration_ = *unsmob_duration ($$);
1914         }
1915         ;
1916
1917 steno_duration:
1918         bare_unsigned dots              {
1919                 int len = 0;
1920                 if (!is_duration ($1))
1921                         PARSER->parser_error (@1, _f ("not a duration: %d", $1));
1922                 else
1923                         len = intlog2 ($1);
1924
1925                 $$ = Duration (len, $2).smobbed_copy ();
1926         }
1927         | DURATION_IDENTIFIER dots      {
1928                 Duration *d = unsmob_duration ($1);
1929                 Duration k (d->duration_log (), d->dot_count () + $2);
1930                 *d = k;
1931                 $$ = $1;
1932         }
1933         ;
1934
1935 multiplied_duration:
1936         steno_duration {
1937                 $$ = $1;
1938         }
1939         | multiplied_duration '*' bare_unsigned {
1940                 $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
1941         }
1942         | multiplied_duration '*' FRACTION {
1943                 Rational  m (scm_to_int (scm_car ($3)), scm_to_int (scm_cdr ($3)));
1944
1945                 $$ = unsmob_duration ($$)->compressed (m).smobbed_copy ();
1946         }
1947         ;
1948
1949 fraction:
1950         FRACTION { $$ = $1; }
1951         | UNSIGNED '/' UNSIGNED {
1952                 $$ = scm_cons (scm_from_int ($1), scm_from_int ($3));
1953         }
1954         ;
1955
1956 dots:
1957         /* empty */     {
1958                 $$ = 0;
1959         }
1960         | dots '.' {
1961                 $$ ++;
1962         }
1963         ;
1964
1965 tremolo_type:
1966         ':'     {
1967                 $$ = 0;
1968         }
1969         | ':' bare_unsigned {
1970                 if (!is_duration ($2))
1971                         PARSER->parser_error (@2, _f ("not a duration: %d", $2));
1972                 $$ = $2;
1973         }
1974         ;
1975
1976 bass_number:
1977         DIGIT   {
1978                 $$ = scm_from_int ($1);
1979         }
1980         | UNSIGNED {
1981                 $$ = scm_from_int ($1);
1982         }
1983         | STRING { $$ = $1; }
1984         | full_markup { $$ = $1; }
1985         ;
1986
1987 figured_bass_alteration:
1988         '-'     { $$ = ly_rational2scm (FLAT_ALTERATION); }
1989         | '+'   { $$ = ly_rational2scm (SHARP_ALTERATION); }
1990         | '!'   { $$ = scm_from_int (0); }
1991         ;
1992
1993 bass_figure:
1994         FIGURE_SPACE {
1995                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent", @$);
1996                 $$ = bfr->unprotect ();
1997         }
1998         | bass_number  {
1999                 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent", @$);
2000                 $$ = bfr->self_scm ();
2001
2002                 if (scm_is_number ($1))
2003                         bfr->set_property ("figure", $1);
2004                 else if (Text_interface::is_markup ($1))
2005                         bfr->set_property ("text", $1);
2006
2007                 bfr->unprotect ();
2008         }
2009         | bass_figure ']' {
2010                 $$ = $1;
2011                 unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
2012         }
2013         | bass_figure figured_bass_alteration {
2014                 Music *m = unsmob_music ($1);
2015                 if (scm_to_double ($2)) {
2016                         SCM salter = m->get_property ("alteration");
2017                         SCM alter = scm_is_number (salter) ? salter : scm_from_int (0);
2018                         m->set_property ("alteration",
2019                                          scm_sum (alter, $2));
2020                 } else {
2021                         m->set_property ("alteration", scm_from_int (0));
2022                 }
2023         }
2024         | bass_figure figured_bass_modification  {
2025                 Music *m = unsmob_music ($1);
2026                 if ($2 == ly_symbol2scm ("plus"))
2027                         {
2028                         m->set_property ("augmented", SCM_BOOL_T);
2029                         }
2030                 else if ($2 == ly_symbol2scm ("slash"))
2031                         {
2032                         m->set_property ("diminished", SCM_BOOL_T);
2033                         }
2034                 else if ($2 == ly_symbol2scm ("exclamation"))
2035                         {
2036                         m->set_property ("no-continuation", SCM_BOOL_T);
2037                         }
2038                 else if ($2 == ly_symbol2scm ("backslash"))
2039                         {
2040                         m->set_property ("augmented-slash", SCM_BOOL_T);
2041                         }
2042         }
2043         ;
2044
2045
2046 figured_bass_modification:
2047         E_PLUS          {
2048                 $$ = ly_symbol2scm ("plus");
2049         }
2050         | E_EXCLAMATION {
2051                 $$ = ly_symbol2scm ("exclamation");
2052         }
2053         | '/'           {
2054                 $$ = ly_symbol2scm ("slash");
2055         }
2056         | E_BACKSLASH {
2057                 $$ = ly_symbol2scm ("backslash");
2058         }
2059         ;
2060
2061 br_bass_figure:
2062         bass_figure {
2063                 $$ = $1;
2064         }
2065         | '[' bass_figure {
2066                 $$ = $2;
2067                 unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
2068         }
2069         ;
2070
2071 figure_list:
2072         /**/            {
2073                 $$ = SCM_EOL;
2074         }
2075         | figure_list br_bass_figure {
2076                 $$ = scm_cons ($2, $1);
2077         }
2078         ;
2079
2080 figure_spec:
2081         FIGURE_OPEN figure_list FIGURE_CLOSE {
2082                 $$ = scm_reverse_x ($2, SCM_EOL);
2083         }
2084         ;
2085
2086
2087 optional_rest:
2088         /**/   { $$ = 0; }
2089         | REST { $$ = 1; }
2090         ;
2091
2092 simple_element:
2093         pitch exclamations questions octave_check optional_notemode_duration optional_rest {
2094                 if (!PARSER->lexer_->is_note_state ())
2095                         PARSER->parser_error (@1, _ ("have to be in Note mode for notes"));
2096
2097                 Music *n = 0;
2098                 if ($6)
2099                         n = MY_MAKE_MUSIC ("RestEvent", @$);
2100                 else
2101                         n = MY_MAKE_MUSIC ("NoteEvent", @$);
2102
2103                 n->set_property ("pitch", $1);
2104                 n->set_property ("duration", $5);
2105
2106                 if (scm_is_number ($4))
2107                 {
2108                         int q = scm_to_int ($4);
2109                         n->set_property ("absolute-octave", scm_from_int (q-1));
2110                 }
2111
2112                 if ($3 % 2)
2113                         n->set_property ("cautionary", SCM_BOOL_T);
2114                 if ($2 % 2 || $3 % 2)
2115                         n->set_property ("force-accidental", SCM_BOOL_T);
2116
2117                 $$ = n->unprotect ();
2118         }
2119         | DRUM_PITCH optional_notemode_duration {
2120                 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
2121                 n->set_property ("duration", $2);
2122                 n->set_property ("drum-type", $1);
2123
2124                 $$ = n->unprotect ();
2125         }
2126         | RESTNAME optional_notemode_duration           {
2127                 Music *ev = 0;
2128                 if (ly_scm2string ($1) == "s") {
2129                         /* Space */
2130                         ev = MY_MAKE_MUSIC ("SkipEvent", @$);
2131                   }
2132                 else {
2133                         ev = MY_MAKE_MUSIC ("RestEvent", @$);
2134
2135                     }
2136                 ev->set_property ("duration", $2);
2137                 $$ = ev->unprotect ();
2138         }
2139         | lyric_element optional_notemode_duration      {
2140                 if (!PARSER->lexer_->is_lyric_state ())
2141                         PARSER->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
2142
2143                 Music *levent = MY_MAKE_MUSIC ("LyricEvent", @$);
2144                 levent->set_property ("text", $1);
2145                 levent->set_property ("duration",$2);
2146                 $$= levent->unprotect ();
2147         }
2148         ;
2149
2150 simple_chord_elements:
2151         simple_element  {
2152                 $$ = scm_list_1 ($1);
2153         }
2154         | new_chord {
2155                 if (!PARSER->lexer_->is_chord_state ())
2156                         PARSER->parser_error (@1, _ ("have to be in Chord mode for chords"));
2157                 $$ = $1;
2158         }
2159         | figure_spec optional_notemode_duration {
2160                 for (SCM s = $1; scm_is_pair (s); s = scm_cdr (s))
2161                 {
2162                         unsmob_music (scm_car (s))->set_property ("duration", $2);
2163                 }
2164                 $$ = $1;
2165         }
2166         ;
2167
2168 lyric_element:
2169         lyric_markup {
2170                 $$ = $1;
2171         }
2172         | LYRICS_STRING {
2173                 $$ = $1;
2174         }
2175         ;
2176
2177 new_chord:
2178         steno_tonic_pitch optional_notemode_duration   {
2179                 $$ = make_chord_elements ($1, $2, SCM_EOL);
2180         }
2181         | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
2182                 SCM its = scm_reverse_x ($4, SCM_EOL);
2183                 $$ = make_chord_elements ($1, $2, scm_cons ($3, its));
2184         }
2185         ;
2186
2187 chord_items:
2188         /**/ {
2189                 $$ = SCM_EOL;
2190         }
2191         | chord_items chord_item {
2192                 $$ = scm_cons ($2, $$);
2193         }
2194         ;
2195
2196 chord_separator:
2197         CHORD_COLON {
2198                 $$ = ly_symbol2scm ("chord-colon");
2199         }
2200         | CHORD_CARET {
2201                 $$ = ly_symbol2scm ("chord-caret");
2202         }
2203         | CHORD_SLASH steno_tonic_pitch {
2204                 $$ = scm_list_2 (ly_symbol2scm ("chord-slash"), $2);
2205         }
2206         | CHORD_BASS steno_tonic_pitch {
2207                 $$ = scm_list_2 (ly_symbol2scm ("chord-bass"), $2);
2208         }
2209         ;
2210
2211 chord_item:
2212         chord_separator {
2213                 $$ = $1;
2214         }
2215         | step_numbers {
2216                 $$ = scm_reverse_x ($1, SCM_EOL);
2217         }
2218         | CHORD_MODIFIER  {
2219                 $$ = $1;
2220         }
2221         ;
2222
2223 step_numbers:
2224         step_number { $$ = scm_cons ($1, SCM_EOL); }
2225         | step_numbers '.' step_number {
2226                 $$ = scm_cons ($3, $$);
2227         }
2228         ;
2229
2230 step_number:
2231         bare_unsigned {
2232                 $$ = make_chord_step ($1, 0);
2233         }
2234         | bare_unsigned '+' {
2235                 $$ = make_chord_step ($1, SHARP_ALTERATION);
2236         }
2237         | bare_unsigned CHORD_MINUS {
2238                 $$ = make_chord_step ($1, FLAT_ALTERATION);
2239         }
2240         ;
2241
2242 /*
2243         UTILITIES
2244
2245 TODO: should deprecate in favor of Scheme?
2246
2247  */
2248 number_expression:
2249         number_expression '+' number_term {
2250                 $$ = scm_sum ($1, $3);
2251         }
2252         | number_expression '-' number_term {
2253                 $$ = scm_difference ($1, $3);
2254         }
2255         | number_term
2256         ;
2257
2258 number_term:
2259         number_factor {
2260                 $$ = $1;
2261         }
2262         | number_factor '*' number_factor {
2263                 $$ = scm_product ($1, $3);
2264         }
2265         | number_factor '/' number_factor {
2266                 $$ = scm_divide ($1, $3);
2267         }
2268         ;
2269
2270 number_factor:
2271         '-'  number_factor { /* %prec UNARY_MINUS */
2272                 $$ = scm_difference ($2, SCM_UNDEFINED);
2273         }
2274         | bare_number
2275         ;
2276
2277
2278 bare_number:
2279         UNSIGNED        {
2280                 $$ = scm_from_int ($1);
2281         }
2282         | REAL          {
2283                 $$ = $1;
2284         }
2285         | NUMBER_IDENTIFIER             {
2286                 $$ = $1;
2287         }
2288         | REAL NUMBER_IDENTIFIER        {
2289                 $$ = scm_from_double (scm_to_double ($1) *scm_to_double ($2));
2290         }
2291         | UNSIGNED NUMBER_IDENTIFIER    {
2292                 $$ = scm_from_double ($1 *scm_to_double ($2));
2293         }
2294         ;
2295
2296
2297 bare_unsigned:
2298         UNSIGNED {
2299                         $$ = $1;
2300         }
2301         | DIGIT {
2302                 $$ = $1;
2303         }
2304         ;
2305
2306 unsigned_number:
2307         bare_unsigned  { $$ = scm_from_int ($1); }
2308         | NUMBER_IDENTIFIER {
2309                 $$ = $1;
2310         }
2311         ;
2312
2313
2314 exclamations:
2315                 { $$ = 0; }
2316         | exclamations '!'      { $$ ++; }
2317         ;
2318
2319 questions:
2320                 { $$ = 0; }
2321         | questions '?' { $$ ++; }
2322         ;
2323
2324 /*
2325 This should be done more dynamically if possible.
2326 */
2327
2328 lyric_markup:
2329         LYRIC_MARKUP_IDENTIFIER {
2330                 $$ = $1;
2331         }
2332         | LYRIC_MARKUP
2333                 { PARSER->lexer_->push_markup_state (); }
2334         markup_top {
2335                 $$ = $3;
2336                 PARSER->lexer_->pop_state ();
2337         }
2338         ;
2339
2340 full_markup_list:
2341         MARKUPLINES
2342                 { PARSER->lexer_->push_markup_state (); }
2343         markup_list {
2344                 $$ = $3;
2345                 PARSER->lexer_->pop_state ();
2346         }
2347         ;
2348
2349 full_markup:
2350         MARKUP_IDENTIFIER {
2351                 $$ = $1;
2352         }
2353         | MARKUP
2354                 { PARSER->lexer_->push_markup_state (); }
2355         markup_top {
2356                 $$ = $3;
2357                 PARSER->lexer_->pop_state ();
2358         }
2359         ;
2360
2361 markup_top:
2362         markup_list {
2363                 $$ = scm_list_2 (ly_lily_module_constant ("line-markup"),  $1);
2364         }
2365         | markup_head_1_list simple_markup      {
2366                 $$ = scm_car (scm_call_2 (ly_lily_module_constant ("map-markup-command-list"), $1, scm_list_1 ($2)));
2367         }
2368         | simple_markup {
2369                 $$ = $1;
2370         }
2371         ;
2372
2373 markup_list:
2374         markup_composed_list {
2375                 $$ = $1;
2376         }
2377         | markup_braced_list {
2378                 $$ = $1;
2379         }
2380         | markup_command_list {
2381                 $$ = scm_list_1 ($1);
2382         }
2383         ;
2384
2385 markup_composed_list:
2386         markup_head_1_list markup_braced_list {
2387                 $$ = scm_call_2 (ly_lily_module_constant ("map-markup-command-list"), $1, $2);
2388
2389         }
2390         ;
2391
2392 markup_braced_list:
2393         '{' markup_braced_list_body '}' {
2394                 $$ = scm_reverse_x ($2, SCM_EOL);
2395         }
2396         ;
2397
2398 markup_braced_list_body:
2399         /* empty */     {  $$ = SCM_EOL; }
2400         | markup_braced_list_body markup {
2401                 $$ = scm_cons ($2, $1);
2402         }
2403         | markup_braced_list_body markup_list {
2404                 $$ = scm_append_x (scm_list_2 (scm_reverse_x ($2, SCM_EOL), $1));
2405         }
2406         ;
2407
2408 markup_command_list:
2409         MARKUP_LIST_HEAD_EMPTY  {
2410                 $$ = scm_list_1 ($1);
2411         }
2412         | MARKUP_LIST_HEAD_LIST0 markup_list    {
2413                 $$ = scm_list_2 ($1, $2);
2414         }
2415         | MARKUP_LIST_HEAD_SCM0 embedded_scm    {
2416                 $$ = scm_list_2 ($1, $2);
2417         }
2418         | MARKUP_LIST_HEAD_SCM0_LIST1 embedded_scm markup_list  {
2419                 $$ = scm_list_3 ($1, $2, $3);
2420         }
2421         | MARKUP_LIST_HEAD_SCM0_SCM1_LIST2 embedded_scm embedded_scm markup_list        {
2422                 $$ = scm_list_4 ($1, $2, $3, $4);
2423         }
2424         ;
2425
2426 markup_head_1_item:
2427         MARKUP_HEAD_MARKUP0     {
2428                 $$ = scm_list_1 ($1);
2429         }
2430         | MARKUP_HEAD_SCM0_MARKUP1 embedded_scm {
2431                 $$ = scm_list_2 ($1, $2);
2432         }
2433         | MARKUP_HEAD_SCM0_SCM1_MARKUP2 embedded_scm embedded_scm       {
2434                 $$ = scm_list_3 ($1, $2, $3);
2435         }
2436         ;
2437
2438 markup_head_1_list:
2439         markup_head_1_item      {
2440                 $$ = scm_list_1 ($1);
2441         }
2442         | markup_head_1_list markup_head_1_item {
2443                 $$ = scm_cons ($2, $1);
2444         }
2445         ;
2446
2447 simple_markup:
2448         STRING {
2449                 $$ = make_simple_markup ($1);
2450         }
2451         | MARKUP_IDENTIFIER {
2452                 $$ = $1;
2453         }
2454         | LYRIC_MARKUP_IDENTIFIER {
2455                 $$ = $1;
2456         }
2457         | STRING_IDENTIFIER {
2458                 $$ = $1;
2459         }
2460         | SCORE {
2461                 SCM nn = PARSER->lexer_->lookup_identifier ("pitchnames");
2462                 PARSER->lexer_->push_note_state (alist_to_hashq (nn));
2463         } '{' score_body '}' {
2464                 Score * sc = $4;
2465                 $$ = scm_list_2 (ly_lily_module_constant ("score-markup"), sc->self_scm ());
2466                 sc->unprotect ();
2467                 PARSER->lexer_->pop_state ();
2468         }
2469         | MARKUP_HEAD_SCM0 embedded_scm {
2470                 $$ = scm_list_2 ($1, $2);
2471         }
2472         | MARKUP_HEAD_SCM0_SCM1_SCM2 embedded_scm embedded_scm embedded_scm {
2473                 $$ = scm_list_4 ($1, $2, $3, $4);
2474         }
2475         | MARKUP_HEAD_SCM0_SCM1 embedded_scm embedded_scm {
2476                 $$ = scm_list_3 ($1, $2, $3);
2477         }
2478         | MARKUP_HEAD_SCM0_MARKUP1_MARKUP2 embedded_scm markup markup {
2479                 $$ = scm_list_4 ($1, $2, $3, $4);
2480         }
2481         | MARKUP_HEAD_SCM0_SCM1_MARKUP2_MARKUP3 embedded_scm embedded_scm markup markup {
2482                 $$ = scm_list_5 ($1, $2, $3, $4, $5);
2483         }
2484         | MARKUP_HEAD_EMPTY {
2485                 $$ = scm_list_1 ($1);
2486         }
2487         | MARKUP_HEAD_LIST0 markup_list {
2488                 $$ = scm_list_2 ($1,$2);
2489         }
2490         | MARKUP_HEAD_MARKUP0_MARKUP1 markup markup {
2491                 $$ = scm_list_3 ($1, $2, $3);
2492         }
2493         ;
2494
2495 markup:
2496         markup_head_1_list simple_markup        {
2497                 SCM mapper = ly_lily_module_constant ("map-markup-command-list");
2498                 $$ = scm_car (scm_call_2 (mapper, $1, scm_list_1 ($2)));
2499         }
2500         | simple_markup {
2501                 $$ = $1;
2502         }
2503         ;
2504
2505 %%
2506
2507 void
2508 Lily_parser::set_yydebug (bool x)
2509 {
2510         yydebug = x;
2511 }
2512
2513 void
2514 Lily_parser::do_yyparse ()
2515 {
2516         yyparse ((void*)this);
2517 }
2518
2519
2520
2521
2522
2523 /*
2524
2525 It is a little strange to have this function in this file, but
2526 otherwise, we have to import music classes into the lexer.
2527
2528 */
2529 int
2530 Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
2531 {
2532         if (scm_is_string (sid)) {
2533                 *destination = sid;
2534                 return STRING_IDENTIFIER;
2535         } else if (unsmob_book (sid)) {
2536                 Book *book =  unsmob_book (sid)->clone ();
2537                 *destination = book->self_scm ();
2538                 book->unprotect ();
2539
2540                 return BOOK_IDENTIFIER;
2541         } else if (scm_is_number (sid)) {
2542                 *destination = sid;
2543                 return NUMBER_IDENTIFIER;
2544         } else if (unsmob_context_def (sid)) {
2545                 Context_def *def= unsmob_context_def (sid)->clone ();
2546
2547                 *destination = def->self_scm ();
2548                 def->unprotect ();
2549
2550                 return CONTEXT_DEF_IDENTIFIER;
2551         } else if (unsmob_score (sid)) {
2552                 Score *score = new Score (*unsmob_score (sid));
2553                 *destination = score->self_scm ();
2554
2555                 score->unprotect ();
2556                 return SCORE_IDENTIFIER;
2557         } else if (Music *mus = unsmob_music (sid)) {
2558                 mus = mus->clone ();
2559                 *destination = mus->self_scm ();
2560                 unsmob_music (*destination)->
2561                         set_property ("origin", make_input (last_input_));
2562
2563                 bool is_event = scm_memq (ly_symbol2scm ("event"), mus->get_property ("types"))
2564                         != SCM_BOOL_F;
2565
2566                 mus->unprotect ();
2567                 return is_event ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
2568         } else if (unsmob_duration (sid)) {
2569                 *destination = unsmob_duration (sid)->smobbed_copy ();
2570                 return DURATION_IDENTIFIER;
2571         } else if (unsmob_output_def (sid)) {
2572                 Output_def *p = unsmob_output_def (sid);
2573                 p = p->clone ();
2574
2575                 *destination = p->self_scm ();
2576                 p->unprotect ();
2577                 return OUTPUT_DEF_IDENTIFIER;
2578         } else if (Text_interface::is_markup (sid)) {
2579                 *destination = sid;
2580                 if (is_lyric_state ())
2581                         return LYRIC_MARKUP_IDENTIFIER;
2582                 return MARKUP_IDENTIFIER;
2583         }
2584
2585         return -1;
2586 }
2587
2588 SCM
2589 get_next_unique_context_id ()
2590 {
2591         return scm_from_locale_string ("$uniqueContextId");
2592 }
2593
2594
2595 SCM
2596 get_next_unique_lyrics_context_id ()
2597 {
2598         static int new_context_count;
2599         char s[128];
2600         snprintf (s, sizeof (s)-1, "uniqueContext%d", new_context_count++);
2601         return scm_from_locale_string (s);
2602 }
2603
2604
2605 SCM
2606 run_music_function (Lily_parser *parser, SCM expr)
2607 {
2608         SCM func = scm_car (expr);
2609         Input *loc = unsmob_input (scm_cadr (expr));
2610         SCM args = scm_cddr (expr);
2611         SCM sig = scm_object_property (func, ly_symbol2scm ("music-function-signature"));
2612
2613         SCM type_check_proc = ly_lily_module_constant ("type-check-list");
2614
2615         if (!to_boolean (scm_call_3  (type_check_proc, scm_cadr (expr), sig, args)))
2616         {
2617                 parser->error_level_ = 1;
2618                 return LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("void-music"), scm_list_2 (parser->self_scm (), make_input (*loc)));
2619         }
2620
2621         SCM syntax_args = scm_list_4 (parser->self_scm (), make_input (*loc), func, args);
2622         return LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant ("music-function"), syntax_args);
2623 }
2624
2625 bool
2626 is_regular_identifier (SCM id)
2627 {
2628   string str = ly_scm2string (id);
2629   char const *s = str.c_str ();
2630
2631   bool v = true;
2632 #if 0
2633   isalpha (*s);
2634   s++;
2635 #endif
2636   while (*s && v)
2637    {
2638         v = v && isalnum (*s);
2639         s++;
2640    }
2641   return v;
2642 }
2643
2644 Music *
2645 make_music_with_input (SCM name, Input where)
2646 {
2647        Music *m = make_music_by_name (name);
2648        m->set_spot (where);
2649        return m;
2650 }
2651
2652 SCM
2653 get_first_context_id (SCM type, Music *m)
2654 {
2655         SCM id = m->get_property ("context-id");
2656         if (SCM_BOOL_T == scm_equal_p (m->get_property ("context-type"), type)
2657             && scm_is_string (m->get_property ("context-id"))
2658             && scm_c_string_length (id) > 0)
2659         {
2660                 return id;
2661         }
2662         return SCM_EOL;
2663 }
2664
2665 SCM
2666 make_simple_markup (SCM a)
2667 {
2668         return a;
2669 }
2670
2671 bool
2672 is_duration (int t)
2673 {
2674   return t && t == 1 << intlog2 (t);
2675 }
2676
2677 void
2678 set_music_properties (Music *p, SCM a)
2679 {
2680   for (SCM k = a; scm_is_pair (k); k = scm_cdr (k))
2681         p->set_property (scm_caar (k), scm_cdar (k));
2682 }
2683
2684
2685 SCM
2686 make_chord_step (int step, Rational alter)
2687 {
2688         if (step == 7)
2689                 alter += FLAT_ALTERATION;
2690
2691         while (step < 0)
2692                 step += 7;
2693         Pitch m ((step -1) / 7, (step - 1) % 7, alter);
2694         return m.smobbed_copy ();
2695 }
2696
2697
2698 SCM
2699 make_chord_elements (SCM pitch, SCM dur, SCM modification_list)
2700 {
2701         SCM chord_ctor = ly_lily_module_constant ("construct-chord-elements");
2702         return scm_call_3 (chord_ctor, pitch, dur, modification_list);
2703 }
2704
2705
2706 /* Todo: actually also use apply iso. call too ...  */
2707 bool
2708 ly_input_procedure_p (SCM x)
2709 {
2710         return ly_is_procedure (x)
2711                 || (scm_is_pair (x) && ly_is_procedure (scm_car (x)));
2712 }
2713
2714 SCM
2715 make_music_relative (Pitch start, SCM music, Input loc)
2716 {
2717         Music *relative = MY_MAKE_MUSIC ("RelativeOctaveMusic", loc);
2718         relative->set_property ("element", music);
2719
2720         Music *m = unsmob_music (music);
2721         Pitch last = m->to_relative_octave (start);
2722         if (lily_1_8_relative)
2723                 m->set_property ("last-pitch", last.smobbed_copy ());
2724         return relative->unprotect ();
2725 }
2726
2727 int
2728 yylex (YYSTYPE *s, YYLTYPE *loc, void *v)
2729 {
2730         Lily_parser *pars = (Lily_parser*) v;
2731         Lily_lexer *lex = pars->lexer_;
2732
2733         lex->lexval = (void*) s;
2734         lex->lexloc = loc;
2735         lex->prepare_for_next_token ();
2736         return lex->yylex ();
2737 }