1 /* -*- mode: c++; c-file-style: "linux"; indent-tabs-mode: t -*- */
3 This file is part of LilyPond, the GNU music typesetter.
5 Copyright (C) 1997--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
6 Jan Nieuwenhuizen <janneke@gnu.org>
8 LilyPond is free software: you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version.
13 LilyPond is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
22 /* Mode and indentation are at best a rough approximation based on TAB
23 * formatting (reasonable for compatibility with unspecific editor
24 * modes as Bison modes are hard to find) and need manual correction
25 * frequently. Without a reasonably dependable way of formatting a
26 * Bison file sensibly, there is little point in trying to fix the
27 * inconsistent state of indentation.
32 #define yyerror Lily_parser::parser_error
34 /* We use custom location type: Input objects */
37 #define YYLLOC_DEFAULT(Current,Rhs,N) \
38 ((Current).set_location ((Rhs)[1], (Rhs)[N]))
40 #define YYPRINT(file, type, value) \
42 if (scm_is_eq (value, SCM_UNSPECIFIED)) \
44 SCM s = scm_call_2 (ly_lily_module_constant ("value->lily-string"), \
46 parser->self_scm ()); \
47 char *p = scm_to_locale_string (s); \
54 %parse-param {Lily_parser *parser}
55 %parse-param {SCM *retval}
56 %lex-param {Lily_parser *parser}
60 /* We use SCMs to do strings, because it saves us the trouble of
61 deleting them. Let's hope that a stack overflow doesn't trigger a move
62 of the parse stack onto the heap. */
68 /* The above precedences tackle the shift/reduce problem
71 \repeat .. \alternative
73 \repeat { \repeat .. \alternative }
77 \repeat { \repeat } \alternative
83 %right ':' UNSIGNED REAL E_UNSIGNED EVENT_IDENTIFIER EVENT_FUNCTION '^' '_'
84 HYPHEN EXTENDER DURATION_IDENTIFIER '!'
86 /* The above are needed for collecting tremoli and other items (that
87 could otherwise be interpreted as belonging to the next function
88 argument) greedily, and together with the next rule will serve to
89 join numbers and units greedily instead of allowing them into
90 separate function arguments
93 %nonassoc NUMBER_IDENTIFIER
105 %{ // -*-Fundamental-*-
110 * The rules for who is protecting what are very shady. Uniformise
113 * There are too many lexical modes?
124 #include "context-def.hh"
125 #include "context-mod.hh"
126 #include "dimensions.hh"
127 #include "file-path.hh"
129 #include "international.hh"
130 #include "lily-guile.hh"
131 #include "lily-lexer.hh"
132 #include "lily-parser.hh"
136 #include "output-def.hh"
137 #include "paper-book.hh"
138 #include "scm-hash.hh"
140 #include "text-interface.hh"
144 Lily_parser::parser_error (Input const *i, Lily_parser *parser, SCM *, const string &s)
146 parser->parser_error (*i, s);
149 // The following are somewhat precarious constructs as they may change
150 // the value of the lookahead token. That implies that the lookahead
151 // token must not yet have made an impact on the state stack other
152 // than causing the reduction of the current rule, or switching the
153 // lookahead token while Bison is mulling it over will cause trouble.
155 #define MYBACKUP(Token, Value, Location) \
157 if (yychar != YYEMPTY) \
158 parser->lexer_->push_extra_token \
159 (yylloc, yychar, yylval); \
161 parser->lexer_->push_extra_token \
162 (Location, Token, Value); \
163 parser->lexer_->push_extra_token (Location, BACKUP); \
168 #define MYREPARSE(Location, Pred, Token, Value) \
170 if (yychar != YYEMPTY) \
171 parser->lexer_->push_extra_token \
172 (yylloc, yychar, yylval); \
173 parser->lexer_->push_extra_token \
174 (Location, Token, Value); \
175 parser->lexer_->push_extra_token \
176 (Location, REPARSE, Pred); \
185 #define MY_MAKE_MUSIC(x, spot) \
186 make_music_with_input (ly_symbol2scm (x), \
187 parser->lexer_->override_input (spot))
190 - Don't use lily module, create a new module instead.
191 - delay application of the function
193 #define LOWLEVEL_MAKE_SYNTAX(proc, args) \
194 scm_apply_0 (proc, args)
195 /* Syntactic Sugar. */
196 #define MAKE_SYNTAX(name, location, ...) \
197 LOWLEVEL_MAKE_SYNTAX (ly_lily_module_constant (name), scm_list_n (parser->lexer_->override_input (location).smobbed_copy (), ##__VA_ARGS__, SCM_UNDEFINED))
198 #define START_MAKE_SYNTAX(name, ...) \
199 scm_list_n (ly_lily_module_constant (name) , ##__VA_ARGS__, SCM_UNDEFINED)
200 #define FINISH_MAKE_SYNTAX(start, location, ...) \
201 LOWLEVEL_MAKE_SYNTAX (scm_car (start), scm_cons (parser->lexer_->override_input (location).smobbed_copy (), scm_append_x (scm_list_2 (scm_cdr (start), scm_list_n (__VA_ARGS__, SCM_UNDEFINED)))))
203 SCM get_next_unique_context_id ();
204 SCM get_next_unique_lyrics_context_id ();
211 #define _(x) gettext (x)
215 static Music *make_music_with_input (SCM name, Input where);
216 SCM check_scheme_arg (Lily_parser *parser, Input loc,
217 SCM arg, SCM args, SCM pred, SCM disp = SCM_UNDEFINED);
218 SCM make_music_from_simple (Lily_parser *parser, Input loc, SCM pitch);
219 SCM loc_on_music (Input loc, SCM arg);
220 SCM make_chord_elements (Input loc, SCM pitch, SCM dur, SCM modification_list);
221 SCM make_chord_step (SCM step, Rational alter);
222 SCM make_simple_markup (SCM a);
223 SCM make_duration (SCM t, int dots = 0);
224 bool is_regular_identifier (SCM id, bool multiple=false);
225 SCM try_string_variants (SCM pred, SCM str);
226 int yylex (YYSTYPE *s, YYLTYPE *loc, Lily_parser *parser);
230 /* The third option is an alias that will be used to display the
231 syntax error. Bison CVS now correctly handles backslash escapes.
233 FIXME: Bison needs to translate some of these, eg, STRING.
237 /* Keyword tokens with plain escaped name. */
238 %token END_OF_FILE 0 "end of input"
239 %token ACCEPTS "\\accepts"
240 %token ADDLYRICS "\\addlyrics"
241 %token ALIAS "\\alias"
242 %token ALTERNATIVE "\\alternative"
244 %token BOOKPART "\\bookpart"
245 %token CHANGE "\\change"
246 %token CHORDMODE "\\chordmode"
247 %token CHORDS "\\chords"
248 %token CONSISTS "\\consists"
249 %token CONTEXT "\\context"
250 %token DEFAULT "\\default"
251 %token DEFAULTCHILD "\\defaultchild"
252 %token DENIES "\\denies"
253 %token DESCRIPTION "\\description"
254 %token DRUMMODE "\\drummode"
255 %token DRUMS "\\drums"
256 %token FIGUREMODE "\\figuremode"
257 %token FIGURES "\\figures"
258 %token HEADER "\\header"
259 %token INVALID "\\version-error"
260 %token LAYOUT "\\layout"
261 %token LYRICMODE "\\lyricmode"
262 %token LYRICS "\\lyrics"
263 %token LYRICSTO "\\lyricsto"
264 %token MARKUP "\\markup"
265 %token MARKUPLIST "\\markuplist"
268 %token NOTEMODE "\\notemode"
269 %token OVERRIDE "\\override"
270 %token PAPER "\\paper"
271 %token REMOVE "\\remove"
272 %token REPEAT "\\repeat"
274 %token REVERT "\\revert"
275 %token SCORE "\\score"
276 %token SCORELINES "\\score-lines"
277 %token SEQUENTIAL "\\sequential"
279 %token SIMULTANEOUS "\\simultaneous"
280 %token TEMPO "\\tempo"
282 %token UNSET "\\unset"
285 /* Keyword token exceptions. */
286 %token NEWCONTEXT "\\new"
289 /* Other string tokens. */
291 %token CHORD_BASS "/+"
292 %token CHORD_CARET "^"
293 %token CHORD_COLON ":"
294 %token CHORD_MINUS "-"
295 %token CHORD_SLASH "/"
296 %token ANGLE_OPEN "<"
297 %token ANGLE_CLOSE ">"
298 %token DOUBLE_ANGLE_OPEN "<<"
299 %token DOUBLE_ANGLE_CLOSE ">>"
300 %token E_BACKSLASH "\\"
301 %token E_EXCLAMATION "\\!"
306 If we give names, Bison complains.
308 %token FIGURE_CLOSE /* "\\>" */
309 %token FIGURE_OPEN /* "\\<" */
310 %token FIGURE_SPACE "_"
313 %token MULTI_MEASURE_REST
319 /* Artificial tokens, for more generic function syntax */
320 %token EXPECT_MARKUP "markup?"
321 %token EXPECT_SCM "scheme?"
322 %token BACKUP "(backed-up?)"
323 %token REPARSE "(reparsed?)"
324 %token EXPECT_MARKUP_LIST "markup-list?"
325 %token EXPECT_OPTIONAL "optional?"
326 /* After the last argument. */
327 %token EXPECT_NO_MORE_ARGS;
329 /* An artificial token for parsing embedded Lilypond */
330 %token EMBEDDED_LILY "#{"
332 %token BOOK_IDENTIFIER
333 %token CHORD_MODIFIER
334 %token CHORD_REPETITION
335 %token CONTEXT_MOD_IDENTIFIER
337 %token PITCH_IDENTIFIER
338 %token DURATION_IDENTIFIER
339 %token EVENT_IDENTIFIER
340 %token EVENT_FUNCTION
343 %token MARKUP_FUNCTION
344 %token MARKUP_LIST_FUNCTION
345 %token MARKUP_IDENTIFIER
346 %token MARKUPLIST_IDENTIFIER
347 %token MUSIC_FUNCTION
348 %token MUSIC_IDENTIFIER
349 %token NOTENAME_PITCH
350 %token NUMBER_IDENTIFIER
355 %token SCM_IDENTIFIER
359 %token TONICNAME_PITCH
363 /* We don't assign precedence to / and *, because we might need varied
364 prec levels in different prods */
373 SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
374 parser->lexer_->push_note_state (nn);
375 } embedded_lilypond {
376 parser->lexer_->pop_state ();
381 lilypond: /* empty */ { $$ = SCM_UNSPECIFIED; }
382 | lilypond toplevel_expression {
384 | lilypond assignment {
387 parser->error_level_ = 1;
390 parser->error_level_ = 1;
397 parser->lexer_->add_scope (get_header (parser));
399 parser->lexer_->set_identifier (ly_symbol2scm ("$defaultheader"), $2);
402 SCM proc = parser->lexer_->lookup_identifier ("toplevel-book-handler");
403 scm_call_1 (proc, $1);
406 SCM proc = parser->lexer_->lookup_identifier ("toplevel-bookpart-handler");
407 scm_call_1 (proc, $1);
410 SCM proc = parser->lexer_->lookup_identifier
411 (unsmob<Book>($1)->paper_
412 ? "toplevel-book-handler"
413 : "toplevel-bookpart-handler");
414 scm_call_1 (proc, $1);
417 SCM proc = parser->lexer_->lookup_identifier ("toplevel-score-handler");
418 scm_call_1 (proc, $1);
421 SCM proc = parser->lexer_->lookup_identifier ("toplevel-music-handler");
422 scm_call_1 (proc, $1);
425 SCM proc = parser->lexer_->lookup_identifier ("toplevel-text-handler");
426 scm_call_1 (proc, scm_list_1 ($1));
429 SCM proc = parser->lexer_->lookup_identifier ("toplevel-text-handler");
430 scm_call_1 (proc, $1);
433 // Evaluate and ignore #xxx, as opposed to \xxx
434 parser->lexer_->eval_scm_token ($1, @1);
436 | embedded_scm_active
438 SCM out = SCM_UNDEFINED;
439 if (Text_interface::is_markup ($1))
440 out = scm_list_1 ($1);
441 else if (Text_interface::is_markup_list ($1))
443 if (scm_is_pair (out))
445 SCM proc = parser->lexer_->lookup_identifier ("toplevel-text-handler");
446 scm_call_1 (proc, out);
447 } else if (unsmob<Score> ($1))
449 SCM proc = parser->lexer_->lookup_identifier ("toplevel-score-handler");
450 scm_call_1 (proc, $1);
451 } else if (Output_def * od = unsmob<Output_def> ($1)) {
454 if (to_boolean (od->c_variable ("is-paper")))
455 id = ly_symbol2scm ("$defaultpaper");
456 else if (to_boolean (od->c_variable ("is-midi")))
457 id = ly_symbol2scm ("$defaultmidi");
458 else if (to_boolean (od->c_variable ("is-layout")))
459 id = ly_symbol2scm ("$defaultlayout");
461 parser->lexer_->set_identifier (id, $1);
462 } else if (!scm_is_eq ($1, SCM_UNSPECIFIED))
463 parser->parser_error (@1, _("bad expression type"));
467 Output_def * od = unsmob<Output_def> ($1);
469 if (to_boolean (od->c_variable ("is-paper")))
470 id = ly_symbol2scm ("$defaultpaper");
471 else if (to_boolean (od->c_variable ("is-midi")))
472 id = ly_symbol2scm ("$defaultmidi");
473 else if (to_boolean (od->c_variable ("is-layout")))
474 id = ly_symbol2scm ("$defaultlayout");
476 parser->lexer_->set_identifier (id, $1);
483 $$ = parser->lexer_->eval_scm_token ($1, @1);
493 embedded_scm_bare_arg:
497 $$ = parser->lexer_->eval_scm_token ($1, @1);
501 | context_modification
503 | context_def_spec_block
509 /* The generic version may end in music, or not */
516 /* embedded_scm_arg is _not_ casting pitches to music by default, this
517 * has to be done by the function itself. Note that this may cause
518 * the results of scm_function_call or embedded_scm_bare_arg to be
519 * turned into music from pitches as well. Note that this creates a
520 * distinctly awkward situation for calculated drum pitches. Those
521 * are at the current point of time rejected as music constituents as
522 * they can't be distinguished from "proper" symbols.
526 embedded_scm_bare_arg
532 SCM_FUNCTION function_arglist {
533 $$ = MAKE_SYNTAX ("music-function", @$,
538 embedded_lilypond_number:
539 '-' embedded_lilypond_number
541 $$ = scm_difference ($2, SCM_UNDEFINED);
544 | UNSIGNED NUMBER_IDENTIFIER
546 $$ = scm_product ($1, $2);
553 // FIXME: @$ does not contain a useful source location
554 // for empty rules, and the only token in the whole
555 // production, EMBEDDED_LILY, is synthetic and also
556 // contains no source location.
557 $$ = MAKE_SYNTAX ("void-music", @$);
559 | identifier_init_nonumber
560 | embedded_lilypond_number
561 | post_event post_events
563 $$ = scm_reverse_x ($2, SCM_EOL);
564 if (Music *m = unsmob<Music> ($1))
566 if (m->is_mus_type ("post-event-wrapper"))
568 (scm_list_2 (m->get_property ("elements"),
571 $$ = scm_cons ($1, $$);
574 && scm_is_null (scm_cdr ($$)))
578 Music * m = MY_MAKE_MUSIC ("PostEvents", @$);
579 m->set_property ("elements", $$);
580 $$ = m->unprotect ();
583 | multiplied_duration
584 | music_embedded music_embedded music_list {
585 $3 = scm_reverse_x ($3, SCM_EOL);
586 if (unsmob<Music> ($2))
587 $3 = scm_cons ($2, $3);
588 if (unsmob<Music> ($1))
589 $3 = scm_cons ($1, $3);
590 $$ = MAKE_SYNTAX ("sequential-music", @$, $3);
593 parser->error_level_ = 1;
594 $$ = SCM_UNSPECIFIED;
596 | INVALID embedded_lilypond {
597 parser->error_level_ = 1;
603 lilypond_header_body:
604 /* empty */ { $$ = SCM_UNSPECIFIED; }
605 | lilypond_header_body assignment {
608 | lilypond_header_body embedded_scm {
614 HEADER '{' lilypond_header_body '}' {
615 $$ = parser->lexer_->remove_scope ();
627 assignment_id '=' identifier_init {
628 parser->lexer_->set_identifier ($1, $3);
629 $$ = SCM_UNSPECIFIED;
631 | assignment_id property_path '=' identifier_init {
632 SCM path = scm_cons (scm_string_to_symbol ($1), $2);
633 parser->lexer_->set_identifier (path, $4);
634 $$ = SCM_UNSPECIFIED;
636 | assignment_id '.' property_path '=' identifier_init {
637 SCM path = scm_cons (scm_string_to_symbol ($1), $3);
638 parser->lexer_->set_identifier (path, $5);
639 $$ = SCM_UNSPECIFIED;
645 identifier_init_nonumber
647 | post_event_nofinger post_events
649 $$ = scm_reverse_x ($2, SCM_EOL);
650 if (Music *m = unsmob<Music> ($1))
652 if (m->is_mus_type ("post-event-wrapper"))
654 (scm_list_2 (m->get_property ("elements"),
657 $$ = scm_cons ($1, $$);
660 && scm_is_null (scm_cdr ($$)))
664 Music * m = MY_MAKE_MUSIC ("PostEvents", @$);
665 m->set_property ("elements", $$);
666 $$ = m->unprotect ();
671 identifier_init_nonumber:
676 | context_def_spec_block
683 | context_modification
686 context_def_spec_block:
687 CONTEXT '{' context_def_spec_body '}'
690 Context_def *td = unsmob<Context_def> ($$);
692 $$ = Context_def::make_scm ();
693 td = unsmob<Context_def> ($$);
695 td->origin ()->set_spot (@$);
703 SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
704 parser->lexer_->push_note_state (nn);
708 parser->lexer_->pop_state ();
714 context_def_spec_body:
716 $$ = SCM_UNSPECIFIED;
718 | context_def_spec_body context_mod {
719 if (!SCM_UNBNDP ($2)) {
720 Context_def *td = unsmob<Context_def> ($$);
722 $$ = Context_def::make_scm ();
723 td = unsmob<Context_def> ($$);
725 unsmob<Context_def> ($$)->add_context_mod ($2);
728 | context_def_spec_body context_modification {
729 Context_def *td = unsmob<Context_def> ($$);
731 $$ = Context_def::make_scm ();
732 td = unsmob<Context_def> ($$);
734 SCM new_mods = unsmob<Context_mod> ($2)->get_mods ();
735 for (SCM m = new_mods; scm_is_pair (m); m = scm_cdr (m)) {
736 td->add_context_mod (scm_car (m));
739 | context_def_spec_body context_mod_arg {
740 Context_def *td = unsmob<Context_def> ($1);
741 if (scm_is_eq ($2, SCM_UNSPECIFIED))
743 else if (!td && unsmob<Context_def> ($2))
747 $$ = Context_def::make_scm ();
748 td = unsmob<Context_def> ($$);
750 if (unsmob<Music> ($2)) {
751 SCM proc = parser->lexer_->lookup_identifier ("context-mod-music-handler");
752 $2 = scm_call_1 (proc, $2);
754 if (Context_mod *cm = unsmob<Context_mod> ($2)) {
755 for (SCM m = cm->get_mods (); scm_is_pair (m); m = scm_cdr (m)) {
756 td->add_context_mod (scm_car (m));
759 parser->parser_error (@2, _ ("not a context mod"));
767 BOOK '{' book_body '}' {
769 unsmob<Book> ($$)->origin ()->set_spot (@$);
771 parser->lexer_->set_identifier (ly_symbol2scm ("$current-book"), SCM_BOOL_F);
776 * Use 'handlers' like for toplevel-* stuff?
777 * grok \layout and \midi? */
780 Book *book = new Book;
781 init_papers (parser);
782 book->paper_ = dynamic_cast<Output_def*> (unsmob<Output_def> (parser->lexer_->lookup_identifier ("$defaultpaper"))->clone ());
783 book->paper_->unprotect ();
784 push_paper (parser, book->paper_);
785 book->header_ = get_header (parser);
786 $$ = book->unprotect ();
787 parser->lexer_->set_identifier (ly_symbol2scm ("$current-book"), $$);
790 parser->lexer_->set_identifier (ly_symbol2scm ("$current-book"), $1);
792 | book_body paper_block {
793 unsmob<Book> ($1)->paper_ = unsmob<Output_def> ($2);
794 set_paper (parser, unsmob<Output_def> ($2));
796 | book_body bookpart_block {
797 SCM proc = parser->lexer_->lookup_identifier ("book-bookpart-handler");
798 scm_call_2 (proc, $1, $2);
800 | book_body score_block {
801 SCM proc = parser->lexer_->lookup_identifier ("book-score-handler");
802 scm_call_2 (proc, $1, $2);
804 | book_body composite_music {
805 SCM proc = parser->lexer_->lookup_identifier ("book-music-handler");
806 scm_call_2 (proc, $1, $2);
808 | book_body full_markup {
809 SCM proc = parser->lexer_->lookup_identifier ("book-text-handler");
810 scm_call_2 (proc, $1, scm_list_1 ($2));
812 | book_body full_markup_list {
813 SCM proc = parser->lexer_->lookup_identifier ("book-text-handler");
814 scm_call_2 (proc, $1, $2);
816 | book_body SCM_TOKEN {
817 // Evaluate and ignore #xxx, as opposed to \xxx
818 parser->lexer_->eval_scm_token ($2, @2);
820 | book_body embedded_scm_active
822 SCM out = SCM_UNDEFINED;
823 if (Text_interface::is_markup ($2))
824 out = scm_list_1 ($2);
825 else if (Text_interface::is_markup_list ($2))
827 if (scm_is_pair (out))
829 SCM proc = parser->lexer_->lookup_identifier ("book-text-handler");
830 scm_call_2 (proc, $1, out);
831 } else if (unsmob<Score> ($2))
833 SCM proc = parser->lexer_->lookup_identifier ("book-score-handler");
834 scm_call_2 (proc, $1, $2);
835 } else if (Output_def *od = unsmob<Output_def> ($2)) {
838 if (to_boolean (od->c_variable ("is-paper")))
839 id = ly_symbol2scm ("$defaultpaper");
840 else if (to_boolean (od->c_variable ("is-midi")))
841 id = ly_symbol2scm ("$defaultmidi");
842 else if (to_boolean (od->c_variable ("is-layout")))
843 id = ly_symbol2scm ("$defaultlayout");
845 parser->lexer_->set_identifier (id, $2);
846 } else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
847 parser->parser_error (@2, _("bad expression type"));
851 parser->lexer_->add_scope (unsmob<Book> ($1)->header_);
854 Book *book = unsmob<Book> ($1);
856 book->scores_ = SCM_EOL;
857 book->bookparts_ = SCM_EOL;
862 BOOKPART '{' bookpart_body '}' {
864 unsmob<Book> ($$)->origin ()->set_spot (@$);
865 parser->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), SCM_BOOL_F);
871 Book *book = new Book;
872 $$ = book->unprotect ();
873 parser->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), $$);
876 parser->lexer_->set_identifier (ly_symbol2scm ("$current-bookpart"), $1);
878 | bookpart_body paper_block {
879 unsmob<Book> ($$)->paper_ = unsmob<Output_def> ($2);
881 | bookpart_body score_block {
882 SCM proc = parser->lexer_->lookup_identifier ("bookpart-score-handler");
883 scm_call_2 (proc, $1, $2);
885 | bookpart_body composite_music {
886 SCM proc = parser->lexer_->lookup_identifier ("bookpart-music-handler");
887 scm_call_2 (proc, $1, $2);
889 | bookpart_body full_markup {
890 SCM proc = parser->lexer_->lookup_identifier ("bookpart-text-handler");
891 scm_call_2 (proc, $1, scm_list_1 ($2));
893 | bookpart_body full_markup_list {
894 SCM proc = parser->lexer_->lookup_identifier ("bookpart-text-handler");
895 scm_call_2 (proc, $1, $2);
897 | bookpart_body SCM_TOKEN {
898 // Evaluate and ignore #xxx, as opposed to \xxx
899 parser->lexer_->eval_scm_token ($2, @2);
901 | bookpart_body embedded_scm_active
903 SCM out = SCM_UNDEFINED;
904 if (Text_interface::is_markup ($2))
905 out = scm_list_1 ($2);
906 else if (Text_interface::is_markup_list ($2))
908 if (scm_is_pair (out))
910 SCM proc = parser->lexer_->lookup_identifier ("bookpart-text-handler");
911 scm_call_2 (proc, $1, out);
912 } else if (unsmob<Score> ($2))
914 SCM proc = parser->lexer_->lookup_identifier ("bookpart-score-handler");
915 scm_call_2 (proc, $1, $2);
916 } else if (Output_def *od = unsmob<Output_def> ($2)) {
919 if (to_boolean (od->c_variable ("is-paper")))
920 id = ly_symbol2scm ("$defaultpaper");
921 else if (to_boolean (od->c_variable ("is-midi")))
922 id = ly_symbol2scm ("$defaultmidi");
923 else if (to_boolean (od->c_variable ("is-layout")))
924 id = ly_symbol2scm ("$defaultlayout");
926 parser->lexer_->set_identifier (id, $2);
927 } else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
928 parser->parser_error (@2, _("bad expression type"));
932 Book *book = unsmob<Book> ($1);
933 if (!ly_is_module (book->header_))
934 book->header_ = ly_make_module (false);
935 parser->lexer_->add_scope (book->header_);
937 | bookpart_body error {
938 Book *book = unsmob<Book> ($1);
940 book->scores_ = SCM_EOL;
945 SCORE '{' score_body '}' {
946 unsmob<Score> ($3)->origin ()->set_spot (@$);
953 if (!unsmob<Score> ($1)) {
954 parser->parser_error (@1, _("Missing music in \\score"));
955 $$ = (new Score)->unprotect ();
956 if (scm_is_pair ($1) && ly_is_module (scm_car ($1)))
958 unsmob<Score> ($$)->set_header (scm_car ($1));
961 for (SCM p = scm_reverse_x ($1, SCM_EOL);
962 scm_is_pair (p); p = scm_cdr (p))
965 add_output_def (unsmob<Output_def> (scm_car (p)));
970 unsmob<Score> ($$)->error_found_ = true;
985 | score_items score_item
987 Output_def *od = unsmob<Output_def> ($2);
989 if (to_boolean (od->lookup_variable (ly_symbol2scm ("is-paper"))))
991 parser->parser_error (@2, _("\\paper cannot be used in \\score, use \\layout instead"));
993 $2 = SCM_UNSPECIFIED;
995 } else if (!unsmob<Score> ($$)) {
996 if (unsmob<Music> ($2)) {
997 SCM scorify = ly_lily_module_constant ("scorify-music");
998 $2 = scm_call_1 (scorify, $2);
1000 if (unsmob<Score> ($2))
1003 $2 = SCM_UNSPECIFIED;
1006 Score *score = unsmob<Score> ($$);
1007 if (score && scm_is_pair ($1)) {
1008 if (ly_is_module (scm_car ($1)))
1010 score->set_header (scm_car ($1));
1013 for (SCM p = scm_reverse_x ($1, SCM_EOL);
1014 scm_is_pair (p); p = scm_cdr (p))
1016 score->add_output_def (unsmob<Output_def> (scm_car (p)));
1021 score->add_output_def (od);
1022 else if (scm_is_pair ($$) && ly_is_module (scm_car ($$)))
1023 scm_set_cdr_x ($$, scm_cons ($2, scm_cdr ($$)));
1025 $$ = scm_cons ($2, $$);
1026 } else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
1027 parser->parser_error (@2, _("Spurious expression in \\score"));
1031 if (Score *score = unsmob<Score> ($1)) {
1032 if (!ly_is_module (score->get_header ()))
1033 score->set_header (ly_make_module (false));
1034 parser->lexer_->add_scope (score->get_header ());
1036 if (!scm_is_pair ($1) || !ly_is_module (scm_car ($1)))
1037 $1 = scm_cons (ly_make_module (false), $1);
1038 parser->lexer_->add_scope (scm_car ($1));
1053 Output_def *od = unsmob<Output_def> ($1);
1055 if (!to_boolean (od->lookup_variable (ly_symbol2scm ("is-paper"))))
1057 parser->parser_error (@1, _ ("need \\paper for paper block"));
1058 $$ = get_paper (parser)->unprotect ();
1065 output_def_body '}' {
1066 if (scm_is_pair ($1))
1069 parser->lexer_->remove_scope ();
1070 parser->lexer_->pop_state ();
1076 Output_def *p = get_paper (parser);
1077 p->input_origin_ = @$;
1078 parser->lexer_->add_scope (p->scope_);
1079 $$ = p->unprotect ();
1082 Output_def *p = get_midi (parser);
1083 $$ = p->unprotect ();
1084 parser->lexer_->add_scope (p->scope_);
1087 Output_def *p = get_layout (parser);
1089 parser->lexer_->add_scope (p->scope_);
1090 $$ = p->unprotect ();
1094 output_def_head_with_mode_switch:
1096 parser->lexer_->push_initial_state ();
1101 // We need this weird nonterminal because both music as well as a
1102 // context definition can start with \context and the difference is
1103 // only apparent after looking at the next token. If it is '{', there
1104 // is still time to escape from notes mode.
1106 music_or_context_def:
1108 | context_def_spec_block
1112 output_def_head_with_mode_switch '{' {
1113 unsmob<Output_def> ($1)->input_origin_.set_spot (@$);
1114 // This is a stupid trick to mark the beginning of the
1115 // body for deciding whether to allow
1116 // embedded_scm_active to have an output definition
1117 $$ = scm_list_1 ($1);
1119 | output_def_body assignment {
1120 if (scm_is_pair ($1))
1123 | output_def_body embedded_scm_active
1125 // We don't switch into note mode for Scheme functions
1126 // here. Does not seem warranted/required in output
1128 if (scm_is_pair ($1))
1130 Output_def *o = unsmob<Output_def> ($2);
1132 o->input_origin_.set_spot (@$);
1133 $1 = o->self_scm ();
1134 parser->lexer_->remove_scope ();
1135 parser->lexer_->add_scope (o->scope_);
1136 $2 = SCM_UNSPECIFIED;
1140 if (unsmob<Context_def> ($2))
1141 assign_context_def (unsmob<Output_def> ($1), $2);
1142 // Seems unlikely, but let's be complete:
1143 else if (unsmob<Music> ($2))
1145 SCM proc = parser->lexer_->lookup_identifier
1146 ("output-def-music-handler");
1147 scm_call_2 (proc, $1, $2);
1148 } else if (!scm_is_eq ($2, SCM_UNSPECIFIED))
1149 parser->parser_error (@2, _("bad expression type"));
1152 | output_def_body SCM_TOKEN {
1153 if (scm_is_pair ($1))
1155 // Evaluate and ignore #xxx, as opposed to \xxx
1156 parser->lexer_->eval_scm_token ($2, @2);
1160 if (scm_is_pair ($1))
1162 SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
1163 parser->lexer_->push_note_state (nn);
1164 } music_or_context_def
1166 parser->lexer_->pop_state ();
1167 if (unsmob<Context_def> ($3))
1168 assign_context_def (unsmob<Output_def> ($1), $3);
1171 SCM proc = parser->lexer_->lookup_identifier
1172 ("output-def-music-handler");
1173 scm_call_2 (proc, $1, $3);
1177 | output_def_body error {
1183 TEMPO steno_duration '=' tempo_range {
1184 $$ = MAKE_SYNTAX ("tempo", @$, SCM_EOL, $2, $4);
1186 | TEMPO scalar steno_duration '=' tempo_range {
1187 $$ = MAKE_SYNTAX ("tempo", @$, $2, $3, $5);
1190 $$ = MAKE_SYNTAX ("tempo", @$, $2);
1195 The representation of a list is reversed to have efficient append. */
1201 | music_list music_embedded {
1202 if (unsmob<Music> ($2))
1203 $$ = scm_cons ($2, $1);
1205 | music_list error {
1206 Music *m = MY_MAKE_MUSIC("Music", @$);
1208 m->set_property ("error-found", SCM_BOOL_T);
1209 $$ = scm_cons (m->self_scm (), $1);
1210 m->unprotect (); /* UGH */
1217 $$ = scm_reverse_x ($2, SCM_EOL);
1222 | lyric_element_music
1229 $$ = make_music_from_simple (parser, @1, $1);
1230 if (!unsmob<Music> ($$))
1232 parser->parser_error (@1, _ ("music expected"));
1233 $$ = MAKE_SYNTAX ("void-music", @$);
1241 if (unsmob<Music> ($1)->is_mus_type ("post-event")) {
1242 parser->parser_error (@1, _ ("unexpected post-event"));
1243 $$ = SCM_UNSPECIFIED;
1246 | music_embedded_backup
1250 | music_embedded_backup BACKUP lyric_element_music
1254 | multiplied_duration post_events
1256 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
1258 parser->default_duration_ = *unsmob<Duration> ($1);
1259 n->set_property ("duration", $1);
1261 if (scm_is_pair ($2))
1262 n->set_property ("articulations",
1263 scm_reverse_x ($2, SCM_EOL));
1264 $$ = n->unprotect ();
1268 music_embedded_backup:
1271 if (scm_is_eq ($1, SCM_UNSPECIFIED))
1273 else if (Music *m = unsmob<Music> ($1)) {
1274 if (m->is_mus_type ("post-event")) {
1275 parser->parser_error
1276 (@1, _ ("unexpected post-event"));
1277 $$ = SCM_UNSPECIFIED;
1280 } else if (parser->lexer_->is_lyric_state ()
1281 && Text_interface::is_markup ($1))
1282 MYBACKUP (LYRIC_ELEMENT, $1, @1);
1284 @$.warning (_ ("Ignoring non-music expression"));
1290 // music_assign does not need to contain lyrics: there are no
1291 // assignments in lyricmode.
1294 | composite_music %prec COMPOSITE
1298 REPEAT simple_string unsigned_number music
1300 $$ = MAKE_SYNTAX ("repeat", @$, $2, $3, $4, SCM_EOL);
1302 | REPEAT simple_string unsigned_number music ALTERNATIVE braced_music_list
1304 $$ = MAKE_SYNTAX ("repeat", @$, $2, $3, $4, $6);
1309 SEQUENTIAL braced_music_list {
1310 $$ = MAKE_SYNTAX ("sequential-music", @$, $2);
1312 | braced_music_list {
1313 $$ = MAKE_SYNTAX ("sequential-music", @$, $1);
1318 SIMULTANEOUS braced_music_list {
1319 $$ = MAKE_SYNTAX ("simultaneous-music", @$, $2);
1321 | DOUBLE_ANGLE_OPEN music_list DOUBLE_ANGLE_CLOSE {
1322 $$ = MAKE_SYNTAX ("simultaneous-music", @$, scm_reverse_x ($2, SCM_EOL));
1328 | music_property_def
1332 context_modification:
1335 SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
1336 parser->lexer_->push_note_state (nn);
1337 } '{' context_mod_list '}'
1339 parser->lexer_->pop_state ();
1342 | WITH CONTEXT_MOD_IDENTIFIER
1346 | CONTEXT_MOD_IDENTIFIER
1350 | WITH context_modification_arg
1352 if (unsmob<Music> ($2)) {
1353 SCM proc = parser->lexer_->lookup_identifier ("context-mod-music-handler");
1354 $2 = scm_call_1 (proc, $2);
1356 if (unsmob<Context_mod> ($2))
1359 parser->parser_error (@2, _ ("not a context mod"));
1360 $$ = Context_mod ().smobbed_copy ();
1365 context_modification_arg:
1370 optional_context_mod:
1374 | context_modification
1382 $$ = Context_mod ().smobbed_copy ();
1384 | context_mod_list context_mod {
1385 if (!SCM_UNBNDP ($2))
1386 unsmob<Context_mod> ($1)->add_context_mod ($2);
1388 | context_mod_list CONTEXT_MOD_IDENTIFIER {
1389 Context_mod *md = unsmob<Context_mod> ($2);
1391 unsmob<Context_mod> ($1)->add_context_mods (md->get_mods ());
1393 | context_mod_list context_mod_arg {
1394 if (scm_is_eq ($2, SCM_UNSPECIFIED))
1396 else if (unsmob<Music> ($2)) {
1397 SCM proc = parser->lexer_->lookup_identifier ("context-mod-music-handler");
1398 $2 = scm_call_1 (proc, $2);
1400 if (unsmob<Context_mod> ($2))
1401 unsmob<Context_mod> ($$)->add_context_mods
1402 (unsmob<Context_mod> ($2)->get_mods ());
1404 parser->parser_error (@2, _ ("not a context mod"));
1410 CONTEXT symbol optional_id optional_context_mod {
1411 Context_mod *ctxmod = unsmob<Context_mod> ($4);
1414 mods = ctxmod->get_mods ();
1415 $$ = START_MAKE_SYNTAX ("context-specification", $2, $3, mods, SCM_BOOL_F);
1417 | NEWCONTEXT symbol optional_id optional_context_mod {
1418 Context_mod *ctxmod = unsmob<Context_mod> ($4);
1421 mods = ctxmod->get_mods ();
1422 $$ = START_MAKE_SYNTAX ("context-specification", $2, $3, mods, SCM_BOOL_T);
1427 ADDLYRICS lyric_mode_music {
1428 $$ = scm_list_1 ($2);
1430 | new_lyrics ADDLYRICS lyric_mode_music {
1431 $$ = scm_cons ($3, $1);
1435 /* basic_music is basically the same as composite_music but with
1436 * context-prefixed music and lyricized music explicitly removed. The
1437 * reason is that in a sequence
1439 * \new Staff \new Voice { ... } \addlyrics { ... } \addlyrics { ... }
1441 * we need to group both \addlyrics together (as they go with the same
1442 * voice) but then combine them with \new Voice { ... }, meaning that
1443 * combining \new Voice { ... } needs higher priority than
1444 * { ... } \addlyrics, and *not* have \new Staff \new Voice { ... }
1445 * combine before combining \new Voice { ... } \addlyrics: only one
1446 * layer of context-prefixed music should assemble before \addlyrics
1447 * is integrated. Total mess, and we sort this mess out with explicit
1448 * rules preferring a single context-prefix.
1455 | LYRICSTO simple_string lyric_mode_music {
1456 $$ = MAKE_SYNTAX ("lyric-combine", @$, $2, SCM_EOL, $3);
1458 | LYRICSTO symbol '=' simple_string lyric_mode_music
1460 $$ = MAKE_SYNTAX ("lyric_combine", @$, $3, $2, $4);
1470 contexted_basic_music:
1471 context_prefix contextable_music new_lyrics
1474 i.set_location (@1, @2);
1475 $$ = FINISH_MAKE_SYNTAX ($1, i, $2);
1476 $$ = MAKE_SYNTAX ("add-lyrics", @$, $$, scm_reverse_x ($3, SCM_EOL));
1478 | context_prefix contextable_music
1480 $$ = FINISH_MAKE_SYNTAX ($1, @$, $2);
1482 | context_prefix contexted_basic_music
1484 $$ = FINISH_MAKE_SYNTAX ($1, @$, $2);
1489 basic_music %prec COMPOSITE
1490 | contexted_basic_music
1491 | basic_music new_lyrics
1493 $$ = MAKE_SYNTAX ("add-lyrics", @$, $1, scm_reverse_x ($2, SCM_EOL));
1500 | grouped_music_list
1504 simultaneous_music { $$ = $1; }
1505 | sequential_music { $$ = $1; }
1508 /* Function argument lists are arguably the most complex part in the
1509 * parser. They are pretty tricky to understand because of the way
1510 * they are processed, and because of optional arguments that can be
1511 * omitted. When there are several optional arguments in a row,
1512 * omitting one automatically omits all following arguments. Optional
1513 * arguments can only be omitted when either
1515 * a) the omission is explicitly started with \default
1516 * b) the omission is implicitly started by an argument not matching
1517 * its predicate, and there is a mandatory argument later that can
1518 * "catch" the argument that does not fit.
1520 * When argument parsing starts, the lexer pushes EXPECT_SCM tokens
1521 * (corresponding to mandatory arguments and having a predicate
1522 * function as semantic value) or EXPECT_OPTIONAL EXPECT_SCM (where
1523 * the semantic value of the EXPECT_OPTIONAL token is the default to
1524 * use when the optional argument is omitted, and EXPECT_SCM again has
1525 * the argument predicate as semantic value) in reverse order to the
1526 * parser, followed by EXPECT_NO_MORE_ARGS. The argument list is then
1527 * processed inside-out while actual tokens are consumed.
1529 * This means that the argument list tokens determine the actions
1530 * taken as they arrive. The structure of the argument list is known
1531 * to the parser and stored in its parse stack when the first argument
1532 * is being parsed. What the parser does not know is which predicates
1533 * will match and whether or not \default will be appearing in the
1534 * argument list, and where.
1536 * Sequences of 0 or more optional arguments are scanned using either
1537 * function_arglist_backup or function_arglist_nonbackup. The first
1538 * is used when optional arguments are followed by at least one
1539 * mandatory argument: in that case optional arguments may be skipped
1540 * by either a false predicate (in which case the expression will be
1541 * pushed back as one or more tokens, preceded by a BACKUP token) or
1542 * by using \default.
1544 * If optional arguments are at the end of the argument list, they are
1545 * instead scanned using function_arglist_nonbackup: here the only
1546 * manner to enter into skipping of optional arguments is the use of
1549 * The argument list of a normal function call is parsed using
1550 * function_arglist. The part of an argument list before a mandatory
1551 * argument is parsed using function_arglist_optional.
1553 * The difference is that leading optional arguments are scanned using
1554 * function_arglist_nonbackup and function_arglist_backup,
1557 * Most other details are obvious in the rules themselves.
1563 | SYMBOL_LIST '.' symbol_list_rev
1565 $$ = scm_append (scm_list_2 ($1, scm_reverse_x ($3, SCM_EOL)));
1571 | symbol_list_rev '.' symbol_list_part
1573 $$ = scm_append_x (scm_list_2 ($3, $1));
1577 // symbol_list_part delivers elements in reverse copy.
1582 SCM sym_l_p = ly_lily_module_constant ("symbol-list?");
1583 $$ = try_string_variants (sym_l_p, $1);
1584 if (SCM_UNBNDP ($$)) {
1585 parser->parser_error (@1, _("not a symbol"));
1588 $$ = scm_reverse ($$);
1593 symbol_list_element:
1599 function_arglist_nonbackup:
1600 function_arglist_common
1601 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup post_event_nofinger
1603 $$ = check_scheme_arg (parser, @4, $4, $3, $2);
1605 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup '-' UNSIGNED
1607 SCM n = scm_difference ($5, SCM_UNDEFINED);
1608 if (scm_is_true (scm_call_1 ($2, n)))
1609 $$ = scm_cons (n, $3);
1611 Music *t = MY_MAKE_MUSIC ("FingeringEvent", @5);
1612 t->set_property ("digit", $5);
1613 $$ = check_scheme_arg (parser, @4, t->unprotect (),
1617 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup '-' REAL
1619 $$ = check_scheme_arg (parser, @4,
1620 scm_difference ($5, SCM_UNDEFINED),
1623 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup '-' NUMBER_IDENTIFIER
1625 $$ = check_scheme_arg (parser, @4,
1626 scm_difference ($5, SCM_UNDEFINED),
1629 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup embedded_scm_arg
1631 if (scm_is_true (scm_call_1 ($2, $4)))
1632 $$ = scm_cons ($4, $3);
1634 $$ = check_scheme_arg (parser, @4,
1635 make_music_from_simple
1639 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup bare_number_common
1641 $$ = check_scheme_arg (parser, @4, $4, $3, $2);
1643 | function_arglist_nonbackup_reparse REPARSE pitch_or_music
1645 if (scm_is_true (scm_call_1 ($2, $3)))
1646 $$ = scm_cons ($3, $1);
1648 $$ = check_scheme_arg (parser, @3,
1649 make_music_from_simple
1653 | function_arglist_nonbackup_reparse REPARSE duration_length
1655 $$ = check_scheme_arg (parser, @3, $3, $1, $2);
1657 | function_arglist_nonbackup_reparse REPARSE bare_number_common
1659 $$ = check_scheme_arg (parser, @3, $3, $1, $2);
1661 | function_arglist_nonbackup_reparse REPARSE SCM_ARG
1663 $$ = check_scheme_arg (parser, @3, $3, $1, $2);
1665 | function_arglist_nonbackup_reparse REPARSE lyric_element_music
1667 $$ = check_scheme_arg (parser, @3, $3, $1, $2);
1669 | function_arglist_nonbackup_reparse REPARSE symbol_list_arg
1671 $$ = check_scheme_arg (parser, @3, $3, $1, $2);
1675 function_arglist_nonbackup_reparse:
1676 EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup SCM_IDENTIFIER
1679 SCM res = try_string_variants ($2, $4);
1680 if (!SCM_UNBNDP (res))
1681 if (scm_is_pair (res))
1682 MYREPARSE (@4, $2, SYMBOL_LIST, res);
1684 MYREPARSE (@4, $2, SCM_ARG, res);
1685 else if (scm_is_true
1687 ($2, make_music_from_simple
1689 MYREPARSE (@4, $2, STRING, $4);
1691 MYREPARSE (@4, $2, SCM_ARG, $4);
1693 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup pitch
1698 ($2, make_music_from_simple
1700 MYREPARSE (@4, $2, PITCH_IDENTIFIER, $4);
1702 MYREPARSE (@4, $2, SCM_ARG, $4);
1704 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup steno_tonic_pitch
1709 ($2, make_music_from_simple
1711 MYREPARSE (@4, $2, TONICNAME_PITCH, $4);
1713 MYREPARSE (@4, $2, SCM_ARG, $4);
1715 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup STRING
1718 SCM res = try_string_variants ($2, $4);
1719 if (!SCM_UNBNDP (res))
1720 if (scm_is_pair (res))
1721 MYREPARSE (@4, $2, SYMBOL_LIST, res);
1723 MYREPARSE (@4, $2, SCM_ARG, res);
1724 else if (scm_is_true
1726 ($2, make_music_from_simple
1728 MYREPARSE (@4, $2, STRING, $4);
1730 MYREPARSE (@4, $2, SCM_ARG, $4);
1732 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup full_markup
1735 if (scm_is_true (scm_call_1 ($2, $4)))
1736 MYREPARSE (@4, $2, SCM_ARG, $4);
1737 else if (scm_is_true
1739 ($2, make_music_from_simple
1741 MYREPARSE (@4, $2, STRING, $4);
1743 MYREPARSE (@4, $2, SCM_ARG, $4);
1745 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup UNSIGNED
1748 if (scm_is_true (scm_call_1 ($2, $4)))
1749 MYREPARSE (@4, $2, REAL, $4);
1751 SCM d = make_duration ($4);
1752 if (SCM_UNBNDP (d) || scm_is_false (scm_call_1 ($2, d)))
1753 MYREPARSE (@4, $2, REAL, $4); // trigger error
1755 MYREPARSE (@4, $2, DURATION_IDENTIFIER, d);
1758 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_nonbackup DURATION_IDENTIFIER {
1760 MYREPARSE (@4, $2, DURATION_IDENTIFIER, $4);
1765 // function_arglist_backup can't occur at the end of an argument
1767 function_arglist_backup:
1768 function_arglist_common
1769 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup embedded_scm_arg
1771 if (scm_is_true (scm_call_1 ($2, $4)))
1772 $$ = scm_cons ($4, $3);
1774 $$ = make_music_from_simple (parser, @4, $4);
1775 if (scm_is_true (scm_call_1 ($2, $$)))
1776 $$ = scm_cons ($$, $3);
1779 $$ = scm_cons (loc_on_music (@3, $1), $3);
1780 MYBACKUP (SCM_ARG, $4, @4);
1784 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup post_event_nofinger
1786 if (scm_is_true (scm_call_1 ($2, $4)))
1788 $$ = scm_cons ($4, $3);
1790 $$ = scm_cons (loc_on_music (@3, $1), $3);
1791 MYBACKUP (EVENT_IDENTIFIER, $4, @4);
1794 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup pitch
1798 ($2, make_music_from_simple
1802 MYREPARSE (@4, $2, PITCH_IDENTIFIER, $4);
1803 } else if (scm_is_true (scm_call_1 ($2, $4)))
1804 $$ = scm_cons ($4, $3);
1806 $$ = scm_cons (loc_on_music (@3, $1), $3);
1807 MYBACKUP (PITCH_IDENTIFIER, $4, @4);
1810 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup steno_tonic_pitch
1814 ($2, make_music_from_simple
1818 MYREPARSE (@4, $2, TONICNAME_PITCH, $4);
1819 } else if (scm_is_true (scm_call_1 ($2, $4)))
1820 $$ = scm_cons ($4, $3);
1822 $$ = scm_cons (loc_on_music (@3, $1), $3);
1823 MYBACKUP (TONICNAME_PITCH, $4, @4);
1826 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup full_markup
1828 if (scm_is_true (scm_call_1 ($2, $4)))
1829 $$ = scm_cons ($4, $3);
1831 $$ = scm_cons (loc_on_music (@3, $1), $3);
1832 MYBACKUP (SCM_IDENTIFIER, $4, @4);
1835 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup UNSIGNED
1837 if (scm_is_true (scm_call_1 ($2, $4)))
1839 MYREPARSE (@4, $2, REAL, $4);
1842 SCM d = make_duration ($4);
1843 if (SCM_UNBNDP (d) || scm_is_false (scm_call_1 ($2, d)))
1845 $$ = scm_cons (loc_on_music (@3, $1), $3);
1846 MYBACKUP (UNSIGNED, $4, @4);
1848 MYREPARSE (@4, $2, DURATION_IDENTIFIER, d);
1853 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup REAL
1855 if (scm_is_true (scm_call_1 ($2, $4)))
1858 MYREPARSE (@4, $2, REAL, $4);
1860 $$ = scm_cons (loc_on_music (@3, $1), $3);
1861 MYBACKUP (REAL, $4, @4);
1864 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup NUMBER_IDENTIFIER
1866 if (scm_is_true (scm_call_1 ($2, $4)))
1868 $$ = scm_cons ($4, $3);
1870 $$ = scm_cons (loc_on_music (@3, $1), $3);
1871 MYBACKUP (NUMBER_IDENTIFIER, $4, @4);
1874 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup '-' UNSIGNED
1876 SCM n = scm_difference ($5, SCM_UNDEFINED);
1877 if (scm_is_true (scm_call_1 ($2, n))) {
1879 MYREPARSE (@5, $2, REAL, n);
1881 Music *t = MY_MAKE_MUSIC ("FingeringEvent", @5);
1882 t->set_property ("digit", $5);
1883 $$ = t->unprotect ();
1884 if (scm_is_true (scm_call_1 ($2, $$)))
1885 $$ = scm_cons ($$, $3);
1887 $$ = scm_cons (loc_on_music (@3, $1), $3);
1888 MYBACKUP (UNSIGNED, $5, @5);
1889 parser->lexer_->push_extra_token (@4, '-');
1893 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup '-' REAL
1895 SCM n = scm_difference ($5, SCM_UNDEFINED);
1896 if (scm_is_true (scm_call_1 ($2, n))) {
1897 MYREPARSE (@5, $2, REAL, n);
1900 $$ = scm_cons (loc_on_music (@3, $1), $3);
1901 MYBACKUP (REAL, n, @5);
1904 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup '-' NUMBER_IDENTIFIER
1906 SCM n = scm_difference ($5, SCM_UNDEFINED);
1907 if (scm_is_true (scm_call_1 ($2, n))) {
1908 $$ = scm_cons (n, $3);
1910 $$ = scm_cons (loc_on_music (@3, $1), $3);
1911 MYBACKUP (NUMBER_IDENTIFIER, n, @5);
1914 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup DURATION_IDENTIFIER
1916 if (scm_is_true (scm_call_1 ($2, $4)))
1918 MYREPARSE (@4, $2, DURATION_IDENTIFIER, $4);
1921 $$ = scm_cons (loc_on_music (@3, $1), $3);
1922 MYBACKUP (DURATION_IDENTIFIER, $4, @4);
1925 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup SCM_IDENTIFIER
1927 SCM res = try_string_variants ($2, $4);
1928 if (!SCM_UNBNDP (res))
1929 if (scm_is_pair (res)) {
1931 MYREPARSE (@4, $2, SYMBOL_LIST, res);
1934 $$ = scm_cons (res, $3);
1936 $$ = scm_cons (loc_on_music (@3, $1), $3);
1937 MYBACKUP (SCM_IDENTIFIER, $4, @4);
1940 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_backup STRING
1942 SCM res = try_string_variants ($2, $4);
1943 if (!SCM_UNBNDP (res))
1944 if (scm_is_pair (res)) {
1946 MYREPARSE (@4, $2, SYMBOL_LIST, res);
1949 $$ = scm_cons (res, $3);
1951 $$ = scm_cons (loc_on_music (@3, $1), $3);
1952 MYBACKUP (STRING, $4, @4);
1955 | function_arglist_backup REPARSE pitch_or_music
1957 if (scm_is_true (scm_call_1 ($2, $3)))
1958 $$ = scm_cons ($3, $1);
1960 $$ = check_scheme_arg (parser, @3,
1961 make_music_from_simple
1965 | function_arglist_backup REPARSE bare_number_common
1967 $$ = check_scheme_arg (parser, @3,
1970 | function_arglist_backup REPARSE duration_length
1972 $$ = check_scheme_arg (parser, @3,
1975 | function_arglist_backup REPARSE symbol_list_arg
1977 $$ = check_scheme_arg (parser, @3, $3, $1, $2);
1982 function_arglist_nonbackup
1983 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_nonbackup DEFAULT
1985 $$ = scm_cons (loc_on_music (@4, $1), $3);
1989 function_arglist_skip_nonbackup:
1990 function_arglist_nonbackup
1991 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_nonbackup
1993 $$ = scm_cons (loc_on_music (@3, $1), $3);
1997 function_arglist_common:
1998 EXPECT_NO_MORE_ARGS {
2001 | EXPECT_SCM function_arglist_optional embedded_scm_arg
2003 if (scm_is_true (scm_call_1 ($1, $3)))
2004 $$ = scm_cons ($3, $2);
2006 $$ = check_scheme_arg (parser, @3,
2007 make_music_from_simple
2011 | EXPECT_SCM function_arglist_optional bare_number_common
2013 $$ = check_scheme_arg (parser, @3,
2016 | EXPECT_SCM function_arglist_optional post_event_nofinger
2018 $$ = check_scheme_arg (parser, @3,
2021 | EXPECT_SCM function_arglist_optional '-' NUMBER_IDENTIFIER
2023 SCM n = scm_difference ($4, SCM_UNDEFINED);
2024 $$ = check_scheme_arg (parser, @4, n, $2, $1);
2026 | function_arglist_common_reparse REPARSE SCM_ARG
2028 $$ = check_scheme_arg (parser, @3,
2031 | function_arglist_common_reparse REPARSE lyric_element_music
2033 $$ = check_scheme_arg (parser, @3,
2036 | function_arglist_common_reparse REPARSE pitch_or_music
2038 if (scm_is_true (scm_call_1 ($2, $3)))
2039 $$ = scm_cons ($3, $1);
2041 $$ = check_scheme_arg (parser, @3,
2042 make_music_from_simple
2046 | function_arglist_common_reparse REPARSE bare_number_common
2048 $$ = check_scheme_arg (parser, @3,
2051 | function_arglist_common_reparse REPARSE duration_length
2053 $$ = check_scheme_arg (parser, @3,
2056 | function_arglist_common_reparse REPARSE symbol_list_arg
2058 $$ = check_scheme_arg (parser, @3, $3, $1, $2);
2062 function_arglist_common_reparse:
2063 EXPECT_SCM function_arglist_optional SCM_IDENTIFIER
2066 SCM res = try_string_variants ($1, $3);
2067 if (!SCM_UNBNDP (res))
2068 if (scm_is_pair (res))
2069 MYREPARSE (@3, $1, SYMBOL_LIST, res);
2071 MYREPARSE (@3, $1, SCM_ARG, res);
2072 else if (scm_is_true
2074 ($1, make_music_from_simple (parser, @3, $3))))
2075 MYREPARSE (@3, $1, LYRIC_ELEMENT, $3);
2077 // This is going to flag a syntax error, we
2078 // know the predicate to be false.
2079 MYREPARSE (@3, $1, SCM_ARG, $3);
2081 | EXPECT_SCM function_arglist_optional pitch
2086 ($1, make_music_from_simple
2088 MYREPARSE (@3, $1, PITCH_IDENTIFIER, $3);
2090 MYREPARSE (@3, $1, SCM_ARG, $3);
2092 | EXPECT_SCM function_arglist_optional steno_tonic_pitch
2097 ($1, make_music_from_simple
2099 MYREPARSE (@3, $1, TONICNAME_PITCH, $3);
2101 MYREPARSE (@3, $1, SCM_ARG, $3);
2103 | EXPECT_SCM function_arglist_optional STRING
2106 SCM res = try_string_variants ($1, $3);
2107 if (!SCM_UNBNDP (res))
2108 if (scm_is_pair (res))
2109 MYREPARSE (@3, $1, SYMBOL_LIST, res);
2111 MYREPARSE (@3, $1, SCM_ARG, res);
2112 else if (scm_is_true
2114 ($1, make_music_from_simple (parser, @3, $3))))
2115 MYREPARSE (@3, $1, LYRIC_ELEMENT, $3);
2117 // This is going to flag a syntax error, we
2118 // know the predicate to be false.
2119 MYREPARSE (@3, $1, SCM_ARG, $3);
2121 | EXPECT_SCM function_arglist_optional full_markup
2124 if (scm_is_true (scm_call_1 ($1, $3)))
2125 MYREPARSE (@3, $1, SCM_ARG, $3);
2126 else if (scm_is_true
2128 ($1, make_music_from_simple (parser, @3, $3))))
2129 MYREPARSE (@3, $1, LYRIC_ELEMENT, $3);
2131 // This is going to flag a syntax error, we
2132 // know the predicate to be false.
2133 MYREPARSE (@3, $1, SCM_ARG, $3);
2135 | EXPECT_SCM function_arglist_optional UNSIGNED
2138 if (scm_is_true (scm_call_1 ($1, $3)))
2139 MYREPARSE (@3, $1, REAL, $3);
2141 SCM d = make_duration ($3);
2142 if (SCM_UNBNDP (d) || scm_is_false (scm_call_1 ($1, d)))
2143 MYREPARSE (@3, $1, REAL, $3);
2145 MYREPARSE (@3, $1, DURATION_IDENTIFIER, d);
2148 | EXPECT_SCM function_arglist_optional DURATION_IDENTIFIER
2151 MYREPARSE (@3, $1, DURATION_IDENTIFIER, $3);
2153 | EXPECT_SCM function_arglist_optional '-' UNSIGNED
2156 SCM n = scm_difference ($4, SCM_UNDEFINED);
2157 if (scm_is_true (scm_call_1 ($1, n)))
2158 MYREPARSE (@4, $1, REAL, n);
2160 Music *t = MY_MAKE_MUSIC ("FingeringEvent", @4);
2161 t->set_property ("digit", $4);
2162 SCM m = t->unprotect ();
2163 if (scm_is_true (scm_call_1 ($1, m)))
2164 MYREPARSE (@4, $1, SCM_ARG, m);
2166 MYREPARSE (@4, $1, SCM_ARG, $4);
2169 | EXPECT_SCM function_arglist_optional '-' REAL
2172 SCM n = scm_difference ($4, SCM_UNDEFINED);
2173 MYREPARSE (@4, $1, REAL, n);
2177 function_arglist_optional:
2178 function_arglist_backup
2179 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_backup DEFAULT
2181 $$ = scm_cons (loc_on_music (@4, $1), $3);
2183 | function_arglist_skip_backup BACKUP
2186 function_arglist_skip_backup:
2187 function_arglist_backup
2188 | EXPECT_OPTIONAL EXPECT_SCM function_arglist_skip_backup
2190 $$ = scm_cons (loc_on_music (@3, $1), $3);
2194 music_function_call:
2195 MUSIC_FUNCTION function_arglist {
2196 $$ = MAKE_SYNTAX ("music-function", @$,
2203 /**/ { $$ = SCM_EOL; }
2204 | '=' simple_string {
2209 // We must not have lookahead tokens parsed in lyric mode. In order
2210 // to save confusion, we take almost the same set as permitted with
2211 // \lyricmode and/or \lyrics. However, music identifiers are also
2212 // allowed, and they obviously do not require switching into lyrics
2213 // mode for parsing.
2217 parser->lexer_->push_lyric_state ();
2218 } grouped_music_list
2220 parser->lexer_->pop_state ();
2227 mode_changing_head grouped_music_list {
2228 if (scm_is_eq ($1, ly_symbol2scm ("chords")))
2230 $$ = MAKE_SYNTAX ("unrelativable-music", @$, $2);
2236 parser->lexer_->pop_state ();
2238 | mode_changing_head_with_context optional_context_mod grouped_music_list {
2239 Context_mod *ctxmod = unsmob<Context_mod> ($2);
2242 mods = ctxmod->get_mods ();
2243 $$ = MAKE_SYNTAX ("context-specification", @$, $1, SCM_EOL, mods, SCM_BOOL_T, $3);
2244 if (scm_is_eq ($1, ly_symbol2scm ("ChordNames")))
2246 $$ = MAKE_SYNTAX ("unrelativable-music", @$, $$);
2248 parser->lexer_->pop_state ();
2254 SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
2255 parser->lexer_->push_note_state (nn);
2257 $$ = ly_symbol2scm ("notes");
2261 SCM nn = parser->lexer_->lookup_identifier ("drumPitchNames");
2262 parser->lexer_->push_note_state (nn);
2264 $$ = ly_symbol2scm ("drums");
2267 parser->lexer_->push_figuredbass_state ();
2269 $$ = ly_symbol2scm ("figures");
2272 SCM nn = parser->lexer_->lookup_identifier ("chordmodifiers");
2273 parser->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
2274 nn = parser->lexer_->lookup_identifier ("pitchnames");
2275 parser->lexer_->push_chord_state (nn);
2276 $$ = ly_symbol2scm ("chords");
2280 { parser->lexer_->push_lyric_state ();
2281 $$ = ly_symbol2scm ("lyrics");
2285 mode_changing_head_with_context:
2287 SCM nn = parser->lexer_->lookup_identifier ("drumPitchNames");
2288 parser->lexer_->push_note_state (nn);
2290 $$ = ly_symbol2scm ("DrumStaff");
2293 parser->lexer_->push_figuredbass_state ();
2295 $$ = ly_symbol2scm ("FiguredBass");
2298 SCM nn = parser->lexer_->lookup_identifier ("chordmodifiers");
2299 parser->lexer_->chordmodifier_tab_ = alist_to_hashq (nn);
2300 nn = parser->lexer_->lookup_identifier ("pitchnames");
2301 parser->lexer_->push_chord_state (nn);
2302 $$ = ly_symbol2scm ("ChordNames");
2305 { parser->lexer_->push_lyric_state ();
2306 $$ = ly_symbol2scm ("Lyrics");
2311 CHANGE symbol '=' simple_string {
2312 $$ = MAKE_SYNTAX ("context-change", @$, $2, $4);
2319 $$ = scm_reverse_x ($1, SCM_EOL);
2321 | symbol_list_rev property_path {
2322 $$ = scm_reverse_x ($1, $2);
2328 $$ = scm_list_3 (ly_symbol2scm ("assign"), $1, $3);
2331 $$ = scm_list_2 (ly_symbol2scm ("unset"), $2);
2333 | OVERRIDE property_path '=' scalar {
2334 if (scm_ilength ($2) < 2) {
2335 parser->parser_error (@2, _("bad grob property path"));
2338 $$ = scm_cons (ly_symbol2scm ("push"),
2339 scm_cons2 (scm_car ($2),
2344 | REVERT revert_arg {
2345 $$ = scm_cons (ly_symbol2scm ("pop"), $2);
2349 // This is all quite awkward for the sake of substantial backward
2350 // compatibility while at the same time allowing a more "natural" form
2351 // of specification not separating grob specification from grob
2352 // property path. The purpose of this definition of revert_arg is to
2353 // allow the symbol list which specifies grob and property to revert
2354 // to be optionally be split into two parts after the grob (which in
2355 // this case is just the first element of the list). symbol_list_part
2356 // is only one path component, but it can be parsed without lookahead,
2357 // so we can follow it with a synthetic BACKUP token when needed. If
2358 // the first symbol_list_part already contains multiple elements (only
2359 // possible if a Scheme expression provides them), we just parse for
2360 // additional elements introduced by '.', which is what the
2361 // SYMBOL_LIST backup in connection with the immediately following
2362 // rule using symbol_list_arg does.
2364 // As long as we don't have our coffers filled with both grob and at
2365 // least one grob property specification, the rest of the required
2366 // symbol list chain may be provided either with or without a leading
2367 // dot. This is for both allowing the traditional
2368 // \revert Accidental #'color
2369 // as well as well as the "naive" form
2370 // \revert Accidental.color
2373 revert_arg_backup BACKUP symbol_list_arg
2382 if (scm_is_null ($1)
2383 || scm_is_null (scm_cdr ($1)))
2384 MYBACKUP (SCM_ARG, $1, @1);
2386 MYBACKUP (SYMBOL_LIST, scm_reverse_x ($1, SCM_EOL), @1);
2390 // revert_arg_part delivers results in reverse
2393 | revert_arg_backup BACKUP SCM_ARG '.' symbol_list_part
2395 $$ = scm_append_x (scm_list_2 ($5, $3));
2397 | revert_arg_backup BACKUP SCM_ARG symbol_list_part
2399 $$ = scm_append_x (scm_list_2 ($4, $3));
2404 CONSISTS { $$ = ly_symbol2scm ("consists"); }
2405 | REMOVE { $$ = ly_symbol2scm ("remove"); }
2407 | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
2408 | DEFAULTCHILD { $$ = ly_symbol2scm ("default-child"); }
2409 | DENIES { $$ = ly_symbol2scm ("denies"); }
2411 | ALIAS { $$ = ly_symbol2scm ("alias"); }
2412 | TYPE { $$ = ly_symbol2scm ("translator-type"); }
2413 | DESCRIPTION { $$ = ly_symbol2scm ("description"); }
2414 | NAME { $$ = ly_symbol2scm ("context-name"); }
2418 property_operation { $$ = $1; }
2419 | context_def_mod STRING {
2420 $$ = scm_list_2 ($1, $2);
2422 | context_def_mod embedded_scm
2424 if (!scm_is_string ($2)
2425 && ly_symbol2scm ("consists") != $1
2426 && ly_symbol2scm ("remove") != $1)
2429 parser->parser_error (@1, _ ("only \\consists and \\remove take non-string argument."));
2433 $$ = scm_list_2 ($1, $2);
2438 // If defined, at least two members.
2442 SCM l = scm_reverse_x ($1, SCM_EOL);
2445 (scm_object_property (scm_car (l),
2446 ly_symbol2scm ("is-grob?"))))
2447 l = scm_cons (ly_symbol2scm ("Bottom"), l);
2448 if (scm_is_null (l) || scm_is_null (scm_cdr (l))) {
2449 parser->parser_error (@1, _ ("bad grob property path"));
2456 // If defined, at least three members
2460 if (!SCM_UNBNDP ($1) && scm_is_null (scm_cddr ($1)))
2462 parser->parser_error (@1, _ ("bad grob property path"));
2466 | grob_prop_spec property_path
2468 if (!SCM_UNBNDP ($1)) {
2469 $$ = scm_append_x (scm_list_2 ($1, $2));
2470 if (scm_is_null (scm_cddr ($$))) {
2471 parser->parser_error (@$, _ ("bad grob property path"));
2479 // Exactly two elements or undefined
2483 SCM l = scm_reverse_x ($1, SCM_EOL);
2484 switch (scm_ilength (l)) {
2486 l = scm_cons (ly_symbol2scm ("Bottom"), l);
2490 parser->parser_error (@1, _ ("bad context property path"));
2498 // This is all quite awkward for the sake of substantial backward
2499 // compatibility while at the same time allowing a more "natural" form
2500 // of specification not separating grob specification from grob
2501 // property path. The purpose of this definition of
2502 // simple_revert_context is to allow the symbol list which specifies
2503 // grob and property to revert to be optionally be split into two
2504 // parts after the grob (which may be preceded by a context
2505 // specification, a case which we distinguish by checking whether the
2506 // first symbol is a valid grob symbol instead).
2508 // See revert_arg above for the main work horse of this arrangement.
2509 // simple_revert_context just caters for the context and delegates the
2510 // rest of the job to revert_arg.
2512 simple_revert_context:
2515 $1 = scm_reverse_x ($1, SCM_EOL);
2516 if (scm_is_null ($1)
2518 (scm_object_property (scm_car ($1),
2519 ly_symbol2scm ("is-grob?")))) {
2520 $$ = ly_symbol2scm ("Bottom");
2521 parser->lexer_->push_extra_token (@1, SCM_IDENTIFIER, $1);
2524 parser->lexer_->push_extra_token (@1, SCM_IDENTIFIER,
2531 OVERRIDE grob_prop_path '=' scalar {
2532 if (SCM_UNBNDP ($2))
2533 $$ = MAKE_SYNTAX ("void-music", @$);
2535 $$ = MAKE_SYNTAX ("property-operation", @$,
2537 ly_symbol2scm ("OverrideProperty"),
2543 | REVERT simple_revert_context revert_arg {
2544 $$ = MAKE_SYNTAX ("property-operation", @$,
2546 ly_symbol2scm ("RevertProperty"),
2550 | SET context_prop_spec '=' scalar {
2551 if (SCM_UNBNDP ($2))
2552 $$ = MAKE_SYNTAX ("void-music", @$);
2554 $$ = MAKE_SYNTAX ("property-operation", @$,
2556 ly_symbol2scm ("PropertySet"),
2560 | UNSET context_prop_spec {
2561 if (SCM_UNBNDP ($2))
2562 $$ = MAKE_SYNTAX ("void-music", @$);
2564 $$ = MAKE_SYNTAX ("property-operation", @$,
2566 ly_symbol2scm ("PropertyUnset"),
2578 simple_string: STRING {
2583 if (scm_is_string ($1)) {
2586 parser->parser_error (@1, (_ ("simple string expected")));
2587 $$ = scm_string (SCM_EOL);
2594 $$ = scm_string_to_symbol ($1);
2598 // This is a bit of overkill but makes the same
2599 // routine responsible for all symbol interpretations.
2600 $$ = try_string_variants (ly_lily_module_constant ("symbol?"),
2602 if (SCM_UNBNDP ($$))
2604 parser->parser_error (@1, (_ ("symbol expected")));
2605 // Generate a unique symbol in case it is used
2606 // for an assignment or similar
2607 $$ = scm_make_symbol (ly_string2scm ("undefined"));
2617 // The following is a rather defensive variant of admitting
2618 // negative numbers: the grammar would permit number_factor or
2619 // even number_expression. However, function arguments allow
2620 // only this simple kind of negative number, so to have things
2621 // like \tweak and \override behave reasonably similar, it
2622 // makes sense to rule out things like -- which are rather an
2623 // accent in function argument contexts.
2626 $$ = scm_difference ($2, SCM_UNDEFINED);
2632 simple_element post_events {
2633 // Let the rhythmic music iterator sort this mess out.
2634 if (scm_is_pair ($2)) {
2635 unsmob<Music> ($$)->set_property ("articulations",
2636 scm_reverse_x ($2, SCM_EOL));
2639 | CHORD_REPETITION optional_notemode_duration post_events {
2641 i.set_location (@1, @3);
2642 $$ = MAKE_SYNTAX ("repetition-chord", i,
2643 $2, scm_reverse_x ($3, SCM_EOL));
2645 | MULTI_MEASURE_REST optional_notemode_duration post_events {
2647 i.set_location (@1, @3);
2648 $$ = MAKE_SYNTAX ("multi-measure-rest", i, $2,
2649 scm_reverse_x ($3, SCM_EOL));
2652 | note_chord_element
2657 chord_body optional_notemode_duration post_events
2659 Music *m = unsmob<Music> ($1);
2660 SCM dur = unsmob<Duration> ($2)->smobbed_copy ();
2661 SCM es = m->get_property ("elements");
2662 SCM postevs = scm_reverse_x ($3, SCM_EOL);
2664 for (SCM s = es; scm_is_pair (s); s = scm_cdr (s))
2665 unsmob<Music> (scm_car (s))->set_property ("duration", dur);
2666 es = ly_append2 (es, postevs);
2668 m-> set_property ("elements", es);
2670 $$ = m->self_scm ();
2675 ANGLE_OPEN chord_body_elements ANGLE_CLOSE
2677 $$ = MAKE_SYNTAX ("event-chord", @$, scm_reverse_x ($2, SCM_EOL));
2679 | FIGURE_OPEN figure_list FIGURE_CLOSE
2681 $$ = MAKE_SYNTAX ("event-chord", @$, scm_reverse_x ($2, SCM_EOL));
2685 chord_body_elements:
2686 /* empty */ { $$ = SCM_EOL; }
2687 | chord_body_elements chord_body_element {
2688 if (!SCM_UNBNDP ($2))
2689 $$ = scm_cons ($2, $1);
2694 pitch_or_tonic_pitch exclamations questions octave_check post_events
2696 bool q = to_boolean ($3);
2697 bool ex = to_boolean ($2);
2701 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
2702 n->set_property ("pitch", $1);
2704 n->set_property ("cautionary", SCM_BOOL_T);
2706 n->set_property ("force-accidental", SCM_BOOL_T);
2708 if (scm_is_pair (post)) {
2709 SCM arts = scm_reverse_x (post, SCM_EOL);
2710 n->set_property ("articulations", arts);
2712 if (scm_is_number (check))
2714 int q = scm_to_int (check);
2715 n->set_property ("absolute-octave", scm_from_int (q-1));
2718 $$ = n->unprotect ();
2720 | DRUM_PITCH post_events {
2721 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
2722 n->set_property ("drum-type", $1);
2724 if (scm_is_pair ($2)) {
2725 SCM arts = scm_reverse_x ($2, SCM_EOL);
2726 n->set_property ("articulations", arts);
2728 $$ = n->unprotect ();
2730 | music_function_chord_body
2732 Music *m = unsmob<Music> ($1);
2734 while (m && m->is_mus_type ("music-wrapper-music")) {
2735 $$ = m->get_property ("element");
2736 m = unsmob<Music> ($$);
2739 if (!(m && m->is_mus_type ("rhythmic-event"))) {
2740 parser->parser_error (@$, _ ("not a rhythmic event"));
2746 music_function_chord_body:
2752 event_function_event:
2753 EVENT_FUNCTION function_arglist {
2754 $$ = MAKE_SYNTAX ("music-function", @$,
2763 | post_events post_event {
2765 if (Music *m = unsmob<Music> ($2))
2767 if (m->is_mus_type ("post-event-wrapper"))
2769 for (SCM p = m->get_property ("elements");
2773 $$ = scm_cons (scm_car (p), $$);
2777 $$ = scm_cons ($2, $$);
2783 post_event_nofinger:
2784 direction_less_event {
2787 | script_dir music_function_call {
2789 if (!unsmob<Music> ($2)->is_mus_type ("post-event")) {
2790 parser->parser_error (@2, _ ("post-event expected"));
2791 $$ = SCM_UNSPECIFIED;
2792 } else if (!SCM_UNBNDP ($1))
2794 unsmob<Music> ($$)->set_property ("direction", $1);
2798 if (!parser->lexer_->is_lyric_state ())
2799 parser->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
2800 $$ = MY_MAKE_MUSIC ("HyphenEvent", @$)->unprotect ();
2803 if (!parser->lexer_->is_lyric_state ())
2804 parser->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
2805 $$ = MY_MAKE_MUSIC ("ExtenderEvent", @$)->unprotect ();
2807 | script_dir direction_reqd_event {
2808 if (!SCM_UNBNDP ($1))
2810 Music *m = unsmob<Music> ($2);
2811 m->set_property ("direction", $1);
2815 | script_dir direction_less_event {
2816 if (!SCM_UNBNDP ($1))
2818 Music *m = unsmob<Music> ($2);
2819 m->set_property ("direction", $1);
2826 unsmob<Music> ($$)->set_property ("direction", scm_from_int (UP));
2831 unsmob<Music> ($$)->set_property ("direction", scm_from_int (DOWN));
2842 string_number_event:
2844 Music *s = MY_MAKE_MUSIC ("StringNumberEvent", @$);
2845 s->set_property ("string-number", $1);
2846 $$ = s->unprotect ();
2850 direction_less_event:
2852 | EVENT_IDENTIFIER {
2856 Music *a = MY_MAKE_MUSIC ("TremoloEvent", @$);
2857 a->set_property ("tremolo-type", $1);
2858 $$ = a->unprotect ();
2860 | event_function_event
2863 direction_reqd_event:
2867 | script_abbreviation {
2868 SCM s = parser->lexer_->lookup_identifier ("dash" + ly_scm2string ($1));
2869 if (scm_is_string (s)) {
2870 Music *a = MY_MAKE_MUSIC ("ArticulationEvent", @$);
2871 a->set_property ("articulation-type", s);
2872 $$ = a->unprotect ();
2874 Music *original = unsmob<Music> (s);
2875 if (original && original->is_mus_type ("post-event")) {
2876 Music *a = original->clone ();
2877 a->set_spot (parser->lexer_->override_input (@$));
2878 $$ = a->unprotect ();
2880 parser->parser_error (@1, _ ("expecting string or post-event as script definition"));
2881 $$ = MY_MAKE_MUSIC ("PostEvents", @$)->unprotect ();
2888 /**/ { $$ = SCM_EOL; }
2889 | '=' quotes { $$ = $2; }
2903 $$ = scm_from_int (1);
2906 $$ = scm_oneplus ($1);
2912 $$ = scm_from_int (-1);
2915 $$ = scm_oneminus ($1);
2920 NOTENAME_PITCH quotes {
2921 if (!scm_is_eq (SCM_INUM0, $2))
2923 Pitch p = *unsmob<Pitch> ($1);
2924 p = p.transposed (Pitch (scm_to_int ($2), 0));
2925 $$ = p.smobbed_copy ();
2935 TONICNAME_PITCH quotes {
2936 if (!scm_is_eq (SCM_INUM0, $2))
2938 Pitch p = *unsmob<Pitch> ($1);
2939 p = p.transposed (Pitch (scm_to_int ($2), 0));
2940 $$ = p.smobbed_copy ();
2947 | PITCH_IDENTIFIER quotes {
2948 if (!scm_is_eq (SCM_INUM0, $2))
2950 Pitch p = *unsmob<Pitch> ($1);
2951 p = p.transposed (Pitch (scm_to_int ($2), 0));
2952 $$ = p.smobbed_copy ();
2957 pitch_or_tonic_pitch:
2964 Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
2965 t->set_property ("text", $1);
2966 $$ = t->unprotect ();
2969 Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
2970 t->set_property ("text",
2971 make_simple_markup ($1));
2972 $$ = t->unprotect ();
2976 Music *m = unsmob<Music> ($1);
2977 if (m && m->is_mus_type ("post-event"))
2979 else if (Text_interface::is_markup ($1)) {
2980 Music *t = MY_MAKE_MUSIC ("TextScriptEvent", @$);
2981 t->set_property ("text", $1);
2982 $$ = t->unprotect ();
2984 parser->parser_error (@1, _ ("not an articulation"));
2990 Music *t = MY_MAKE_MUSIC ("FingeringEvent", @$);
2991 t->set_property ("digit", $1);
2992 $$ = t->unprotect ();
2996 script_abbreviation:
2998 $$ = scm_from_ascii_string ("Hat");
3001 $$ = scm_from_ascii_string ("Plus");
3004 $$ = scm_from_ascii_string ("Dash");
3007 $$ = scm_from_ascii_string ("Bang");
3010 $$ = scm_from_ascii_string ("Larger");
3013 $$ = scm_from_ascii_string ("Dot");
3016 $$ = scm_from_ascii_string ("Underscore");
3021 '_' { $$ = scm_from_int (DOWN); }
3022 | '^' { $$ = scm_from_int (UP); }
3023 | '-' { $$ = SCM_UNDEFINED; }
3027 multiplied_duration {
3032 maybe_notemode_duration:
3036 | multiplied_duration {
3038 parser->default_duration_ = *unsmob<Duration> ($$);
3043 optional_notemode_duration:
3044 maybe_notemode_duration
3046 if (SCM_UNBNDP ($$))
3047 $$ = parser->default_duration_.smobbed_copy ();
3053 $$ = make_duration ($1, scm_to_int ($2));
3054 if (SCM_UNBNDP ($$))
3056 parser->parser_error (@1, _ ("not a duration"));
3057 $$ = Duration ().smobbed_copy ();
3060 | DURATION_IDENTIFIER dots {
3061 Duration *d = unsmob<Duration> ($1);
3062 Duration k (d->duration_log (),
3063 d->dot_count () + scm_to_int ($2));
3064 k = k.compressed (d->factor ());
3065 scm_remember_upto_here_1 ($1);
3066 $$ = k.smobbed_copy ();
3070 multiplied_duration:
3074 | multiplied_duration '*' UNSIGNED {
3075 $$ = unsmob<Duration> ($$)->compressed (scm_to_int ($3)).smobbed_copy ();
3077 | multiplied_duration '*' FRACTION {
3078 Rational m (scm_to_int (scm_car ($3)), scm_to_int (scm_cdr ($3)));
3080 $$ = unsmob<Duration> ($$)->compressed (m).smobbed_copy ();
3089 $$ = scm_oneplus ($1);
3095 $$ = scm_from_int (parser->default_tremolo_type_);
3098 if (SCM_UNBNDP (make_duration ($2))) {
3099 parser->parser_error (@2, _ ("not a duration"));
3100 $$ = scm_from_int (parser->default_tremolo_type_);
3103 parser->default_tremolo_type_ = scm_to_int ($2);
3109 UNSIGNED { $$ = $1; }
3110 | STRING { $$ = $1; }
3111 | full_markup { $$ = $1; }
3114 // as an integer, it needs to be non-negative, and otherwise
3115 // it needs to be suitable as a markup.
3116 if (scm_is_integer ($1)
3117 ? scm_is_true (scm_negative_p ($1))
3118 : !Text_interface::is_markup ($1))
3120 parser->parser_error (@1, _ ("bass number expected"));
3126 figured_bass_alteration:
3127 '-' { $$ = ly_rational2scm (FLAT_ALTERATION); }
3128 | '+' { $$ = ly_rational2scm (SHARP_ALTERATION); }
3129 | '!' { $$ = scm_from_int (0); }
3134 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent", @$);
3135 $$ = bfr->unprotect ();
3138 Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent", @$);
3139 $$ = bfr->self_scm ();
3141 if (scm_is_number ($1))
3142 bfr->set_property ("figure", $1);
3143 else if (Text_interface::is_markup ($1))
3144 bfr->set_property ("text", $1);
3150 unsmob<Music> ($1)->set_property ("bracket-stop", SCM_BOOL_T);
3152 | bass_figure figured_bass_alteration {
3153 Music *m = unsmob<Music> ($1);
3154 if (scm_to_double ($2)) {
3155 SCM salter = m->get_property ("alteration");
3156 SCM alter = scm_is_number (salter) ? salter : scm_from_int (0);
3157 m->set_property ("alteration",
3158 scm_sum (alter, $2));
3160 m->set_property ("alteration", scm_from_int (0));
3163 | bass_figure figured_bass_modification {
3164 Music *m = unsmob<Music> ($1);
3165 m->set_property ($2, SCM_BOOL_T);
3170 figured_bass_modification:
3172 $$ = ly_symbol2scm ("augmented");
3175 $$ = ly_symbol2scm ("no-continuation");
3178 $$ = ly_symbol2scm ("diminished");
3181 $$ = ly_symbol2scm ("augmented-slash");
3191 unsmob<Music> ($$)->set_property ("bracket-start", SCM_BOOL_T);
3199 | figure_list br_bass_figure {
3200 $$ = scm_cons ($2, $1);
3205 /**/ { $$ = SCM_BOOL_F; }
3206 | REST { $$ = SCM_BOOL_T; }
3210 pitch exclamations questions octave_check maybe_notemode_duration optional_rest post_events {
3211 if (!parser->lexer_->is_note_state ())
3212 parser->parser_error (@1, _ ("have to be in Note mode for notes"));
3213 if (!SCM_UNBNDP ($2)
3215 || scm_is_number ($4)
3218 || scm_is_pair ($7))
3221 if (scm_is_true ($6))
3222 n = MY_MAKE_MUSIC ("RestEvent", @$);
3224 n = MY_MAKE_MUSIC ("NoteEvent", @$);
3226 n->set_property ("pitch", $1);
3227 if (SCM_UNBNDP ($5))
3228 n->set_property ("duration",
3229 parser->default_duration_.smobbed_copy ());
3231 n->set_property ("duration", $5);
3233 if (scm_is_number ($4))
3235 int q = scm_to_int ($4);
3236 n->set_property ("absolute-octave", scm_from_int (q-1));
3239 if (to_boolean ($3))
3240 n->set_property ("cautionary", SCM_BOOL_T);
3241 if (to_boolean ($2) || to_boolean ($3))
3242 n->set_property ("force-accidental", SCM_BOOL_T);
3243 if (scm_is_pair ($7))
3244 n->set_property ("articulations",
3245 scm_reverse_x ($7, SCM_EOL));
3246 $$ = n->unprotect ();
3249 | new_chord post_events {
3250 if (!parser->lexer_->is_chord_state ())
3251 parser->parser_error (@1, _ ("have to be in Chord mode for chords"));
3252 if (scm_is_pair ($2)) {
3253 if (unsmob<Pitch> ($1))
3254 $1 = make_chord_elements (@1,
3256 parser->default_duration_.smobbed_copy (),
3259 SCM elts = ly_append2 ($1, scm_reverse_x ($2, SCM_EOL));
3261 $$ = MAKE_SYNTAX ("event-chord", @1, elts);
3262 } else if (!unsmob<Pitch> ($1))
3263 $$ = MAKE_SYNTAX ("event-chord", @1, $1);
3264 // A mere pitch drops through.
3269 DRUM_PITCH optional_notemode_duration {
3270 Music *n = MY_MAKE_MUSIC ("NoteEvent", @$);
3271 n->set_property ("duration", $2);
3272 n->set_property ("drum-type", $1);
3274 $$ = n->unprotect ();
3276 | RESTNAME optional_notemode_duration {
3278 if (ly_scm2string ($1) == "s") {
3280 ev = MY_MAKE_MUSIC ("SkipEvent", @$);
3283 ev = MY_MAKE_MUSIC ("RestEvent", @$);
3286 ev->set_property ("duration", $2);
3287 $$ = ev->unprotect ();
3293 if (!parser->lexer_->is_lyric_state ())
3294 parser->parser_error (@1, _ ("markup outside of text script or \\lyricmode"));
3298 if (!parser->lexer_->is_lyric_state ())
3299 parser->parser_error (@1, _ ("unrecognized string, not in text script or \\lyricmode"));
3305 lyric_element_music:
3306 lyric_element optional_notemode_duration post_events {
3307 $$ = MAKE_SYNTAX ("lyric-event", @$, $1, $2);
3308 if (scm_is_pair ($3))
3309 unsmob<Music> ($$)->set_property
3310 ("articulations", scm_reverse_x ($3, SCM_EOL));
3314 // Can return a single pitch rather than a list.
3316 steno_tonic_pitch maybe_notemode_duration {
3317 if (SCM_UNBNDP ($2))
3320 $$ = make_chord_elements (@$, $1, $2, SCM_EOL);
3322 | steno_tonic_pitch optional_notemode_duration chord_separator chord_items {
3323 SCM its = scm_reverse_x ($4, SCM_EOL);
3324 $$ = make_chord_elements (@$, $1, $2, scm_cons ($3, its));
3332 | chord_items chord_item {
3333 $$ = scm_cons ($2, $$);
3339 $$ = ly_symbol2scm ("chord-colon");
3342 $$ = ly_symbol2scm ("chord-caret");
3344 | CHORD_SLASH steno_tonic_pitch {
3345 $$ = scm_list_2 (ly_symbol2scm ("chord-slash"), $2);
3347 | CHORD_BASS steno_tonic_pitch {
3348 $$ = scm_list_2 (ly_symbol2scm ("chord-bass"), $2);
3357 $$ = scm_reverse_x ($1, SCM_EOL);
3365 step_number { $$ = scm_cons ($1, SCM_EOL); }
3366 | step_numbers '.' step_number {
3367 $$ = scm_cons ($3, $$);
3373 $$ = make_chord_step ($1, 0);
3376 $$ = make_chord_step ($1, SHARP_ALTERATION);
3378 | UNSIGNED CHORD_MINUS {
3379 $$ = make_chord_step ($1, FLAT_ALTERATION);
3387 | unsigned_number '-' unsigned_number {
3388 $$ = scm_cons ($1, $3);
3395 TODO: should deprecate in favor of Scheme?
3399 number_expression '+' number_term {
3400 $$ = scm_sum ($1, $3);
3402 | number_expression '-' number_term {
3403 $$ = scm_difference ($1, $3);
3412 | number_factor '*' number_factor {
3413 $$ = scm_product ($1, $3);
3415 | number_factor '/' number_factor {
3416 $$ = scm_divide ($1, $3);
3421 '-' number_factor { /* %prec UNARY_MINUS */
3422 $$ = scm_difference ($2, SCM_UNDEFINED);
3430 | REAL NUMBER_IDENTIFIER
3432 $$ = scm_product ($1, $2);
3439 | UNSIGNED NUMBER_IDENTIFIER {
3440 $$ = scm_product ($1, $2);
3448 if (!scm_is_integer ($1)
3449 || scm_is_true (scm_negative_p ($1)))
3451 parser->parser_error (@1, _("not an unsigned integer"));
3457 if (!scm_is_integer ($1)
3458 || scm_is_true (scm_negative_p ($1)))
3460 parser->parser_error (@1, _("not an unsigned integer"));
3467 { $$ = SCM_UNDEFINED; }
3470 if (SCM_UNBNDP ($1))
3478 // This precedence rule is rather weird. It triggers when '!' is
3479 // encountered after a pitch, and is used for deciding whether to save
3480 // this instead for a figure modification. This should not actually
3481 // occur in practice as pitches and figures are generated in different
3482 // modes. Using a greedy (%right) precedence makes sure that we don't
3483 // get stuck in a wrong interpretation.
3484 { $$ = SCM_UNDEFINED; } %prec ':'
3487 if (SCM_UNBNDP ($1))
3496 { parser->lexer_->push_markup_state (); }
3499 parser->lexer_->pop_state ();
3505 { parser->lexer_->push_markup_state (); }
3508 parser->lexer_->pop_state ();
3514 $$ = scm_list_2 (ly_lily_module_constant ("line-markup"), $1);
3516 | markup_head_1_list simple_markup
3518 $$ = scm_car (MAKE_SYNTAX ("composed-markup-list",
3519 @2, $1, scm_list_1 ($2)));
3529 if (Text_interface::is_markup ($1))
3530 MYBACKUP (MARKUP_IDENTIFIER, $1, @1);
3531 else if (Text_interface::is_markup_list ($1))
3532 MYBACKUP (MARKUPLIST_IDENTIFIER, $1, @1);
3534 parser->parser_error (@1, _ ("not a markup"));
3535 MYBACKUP (MARKUP_IDENTIFIER, scm_string (SCM_EOL), @1);
3542 markup_composed_list {
3545 | markup_uncomposed_list
3548 markup_uncomposed_list:
3549 markup_braced_list {
3552 | markup_command_list {
3553 $$ = scm_list_1 ($1);
3555 | markup_scm MARKUPLIST_IDENTIFIER
3560 SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
3561 parser->lexer_->push_note_state (nn);
3562 } '{' score_body '}' {
3563 Score *sc = unsmob<Score> ($4);
3564 sc->origin ()->set_spot (@$);
3565 if (sc->defs_.empty ()) {
3566 Output_def *od = get_layout (parser);
3567 sc->add_output_def (od);
3570 $$ = scm_list_1 (scm_list_2 (ly_lily_module_constant ("score-lines-markup-list"), $4));
3571 parser->lexer_->pop_state ();
3575 markup_composed_list:
3576 markup_head_1_list markup_uncomposed_list {
3577 $$ = MAKE_SYNTAX ("composed-markup-list",
3583 '{' markup_braced_list_body '}' {
3584 $$ = scm_reverse_x ($2, SCM_EOL);
3588 markup_braced_list_body:
3589 /* empty */ { $$ = SCM_EOL; }
3590 | markup_braced_list_body markup {
3591 $$ = scm_cons ($2, $1);
3593 | markup_braced_list_body markup_list {
3594 $$ = scm_reverse_x ($2, $1);
3598 markup_command_list:
3599 MARKUP_LIST_FUNCTION markup_command_list_arguments {
3600 $$ = scm_cons ($1, scm_reverse_x($2, SCM_EOL));
3604 markup_command_basic_arguments:
3605 EXPECT_MARKUP_LIST markup_command_list_arguments markup_list {
3606 $$ = scm_cons ($3, $2);
3608 | EXPECT_SCM markup_command_list_arguments embedded_scm {
3609 $$ = check_scheme_arg (parser, @3, $3, $2, $1);
3611 | EXPECT_NO_MORE_ARGS {
3616 markup_command_list_arguments:
3617 markup_command_basic_arguments { $$ = $1; }
3618 | EXPECT_MARKUP markup_command_list_arguments markup {
3619 $$ = scm_cons ($3, $2);
3624 MARKUP_FUNCTION EXPECT_MARKUP markup_command_list_arguments {
3625 $$ = scm_cons ($1, scm_reverse_x ($3, SCM_EOL));
3630 markup_head_1_item {
3631 $$ = scm_list_1 ($1);
3633 | markup_head_1_list markup_head_1_item {
3634 $$ = scm_cons ($2, $1);
3640 $$ = make_simple_markup ($1);
3643 SCM nn = parser->lexer_->lookup_identifier ("pitchnames");
3644 parser->lexer_->push_note_state (nn);
3645 } '{' score_body '}' {
3646 Score *sc = unsmob<Score> ($4);
3647 sc->origin ()->set_spot (@$);
3648 if (sc->defs_.empty ()) {
3649 Output_def *od = get_layout (parser);
3650 sc->add_output_def (od);
3653 $$ = scm_list_2 (ly_lily_module_constant ("score-markup"), $4);
3654 parser->lexer_->pop_state ();
3656 | MARKUP_FUNCTION markup_command_basic_arguments {
3657 $$ = scm_cons ($1, scm_reverse_x ($2, SCM_EOL));
3659 | markup_scm MARKUP_IDENTIFIER
3666 markup_head_1_list simple_markup
3668 $$ = scm_car (MAKE_SYNTAX ("composed-markup-list",
3669 @2, $1, scm_list_1 ($2)));
3679 Lily_parser::set_yydebug (bool x)
3685 Lily_parser::do_yyparse ()
3687 return scm_c_with_fluid (ly_lily_module_constant ("%parser"),
3689 do_yyparse_trampoline,
3690 static_cast <void *>(this));
3694 Lily_parser::do_yyparse_trampoline (void *parser)
3696 SCM retval = SCM_UNDEFINED;
3697 yyparse (static_cast <Lily_parser *>(parser), &retval);
3705 It is a little strange to have this function in this file, but
3706 otherwise, we have to import music classes into the lexer.
3710 Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
3712 if (unsmob<Book> (sid)) {
3713 Book *book = unsmob<Book> (sid)->clone ();
3714 *destination = book->self_scm ();
3717 return BOOK_IDENTIFIER;
3718 } else if (scm_is_number (sid)) {
3720 return NUMBER_IDENTIFIER;
3721 } else if (unsmob<Context_def> (sid))
3723 *destination = unsmob<Context_def> (sid)->clone ()->unprotect ();
3724 return SCM_IDENTIFIER;
3725 } else if (unsmob<Context_mod> (sid)) {
3726 *destination = unsmob<Context_mod> (sid)->smobbed_copy ();
3727 return CONTEXT_MOD_IDENTIFIER;
3728 } else if (Music *mus = unsmob<Music> (sid)) {
3729 mus = mus->clone ();
3730 *destination = mus->self_scm ();
3731 bool is_event = mus->is_mus_type ("post-event");
3733 return is_event ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
3734 } else if (unsmob<Pitch> (sid)) {
3735 *destination = unsmob<Pitch> (sid)->smobbed_copy ();
3736 return PITCH_IDENTIFIER;
3737 } else if (unsmob<Duration> (sid)) {
3738 *destination = unsmob<Duration> (sid)->smobbed_copy ();
3739 return DURATION_IDENTIFIER;
3740 } else if (unsmob<Output_def> (sid)) {
3741 *destination = unsmob<Output_def> (sid)->clone ()->unprotect ();
3742 return SCM_IDENTIFIER;
3743 } else if (unsmob<Score> (sid)) {
3744 *destination = unsmob<Score> (sid)->clone ()->unprotect ();
3745 return SCM_IDENTIFIER;
3752 get_next_unique_context_id ()
3754 return scm_from_ascii_string ("$uniqueContextId");
3759 get_next_unique_lyrics_context_id ()
3761 static int new_context_count;
3763 snprintf (s, sizeof (s)-1, "uniqueContext%d", new_context_count++);
3764 return scm_from_ascii_string (s);
3767 // check_scheme_arg checks one argument with a given predicate for use
3768 // in an argument list and throws a syntax error if it is unusable.
3769 // The argument is prepended to the argument list in any case. After
3770 // throwing a syntax error, the argument list is terminated with #f as
3771 // its last cdr in order to mark it as uncallable while not losing
3772 // track of its total length.
3774 // There are a few special considerations: if optional argument disp
3775 // is given (otherwise it defaults to SCM_UNDEFINED), it will be used
3776 // instead of arg in a prospective error message. This is useful if
3777 // arg is not the actual argument but rather a transformation of it.
3779 // If arg itself is SCM_UNDEFINED, the predicate is considered false
3780 // and an error message using disp is produced unconditionally.
3782 SCM check_scheme_arg (Lily_parser *parser, Input loc,
3783 SCM arg, SCM args, SCM pred, SCM disp)
3785 if (SCM_UNBNDP (arg))
3786 args = scm_cons (disp, args);
3788 args = scm_cons (arg, args);
3789 if (scm_is_true (scm_call_1 (pred, arg)))
3792 scm_set_cdr_x (scm_last_pair (args), SCM_EOL);
3793 MAKE_SYNTAX ("argument-error", loc, scm_length (args), pred,
3794 SCM_UNBNDP (disp) ? arg : disp);
3795 scm_set_cdr_x (scm_last_pair (args), SCM_BOOL_F);
3799 SCM loc_on_music (Input loc, SCM arg)
3801 if (Music *m = unsmob<Music> (arg))
3805 return m->unprotect ();
3811 try_string_variants (SCM pred, SCM str)
3813 // a matching predicate is always ok
3814 if (scm_is_true (scm_call_1 (pred, str)))
3816 // a symbol may be interpreted as a list of symbols if it helps
3817 if (scm_is_symbol (str)) {
3818 str = scm_list_1 (str);
3819 if (scm_is_true (scm_call_1 (pred, str)))
3821 return SCM_UNDEFINED;
3824 // If this cannot be a string representation of a symbol list,
3827 if (!is_regular_identifier (str, true))
3828 return SCM_UNDEFINED;
3830 str = scm_string_split (str, SCM_MAKE_CHAR ('.'));
3831 for (SCM p = str; scm_is_pair (p); p = scm_cdr (p))
3832 scm_set_car_x (p, scm_string_to_symbol (scm_car (p)));
3834 // Let's attempt the symbol list interpretation first.
3836 if (scm_is_true (scm_call_1 (pred, str)))
3839 // If there is just one symbol in the list, we might interpret
3840 // it as a single symbol
3842 if (scm_is_null (scm_cdr (str)))
3844 str = scm_car (str);
3845 if (scm_is_true (scm_call_1 (pred, str)))
3849 return SCM_UNDEFINED;
3853 is_regular_identifier (SCM id, bool multiple)
3855 if (!scm_is_string (id))
3858 string str = ly_scm2string (id);
3860 bool middle = false;
3862 for (string::iterator it=str.begin(); it != str.end (); it++)
3865 if ((c >= 'a' && c <= 'z')
3866 || (c >= 'A' && c <= 'Z')
3869 else if (middle && (c == '-' || c == '_' || (multiple && c == '.')))
3878 make_music_from_simple (Lily_parser *parser, Input loc, SCM simple)
3880 if (unsmob<Music> (simple))
3882 if (parser->lexer_->is_note_state ()) {
3883 if (scm_is_symbol (simple)) {
3884 Music *n = MY_MAKE_MUSIC ("NoteEvent", loc);
3885 n->set_property ("duration", parser->default_duration_.smobbed_copy ());
3886 n->set_property ("drum-type", simple);
3887 return n->unprotect ();
3889 if (unsmob<Pitch> (simple)) {
3890 Music *n = MY_MAKE_MUSIC ("NoteEvent", loc);
3891 n->set_property ("duration", parser->default_duration_.smobbed_copy ());
3892 n->set_property ("pitch", simple);
3893 return n->unprotect ();
3896 } else if (parser->lexer_->is_lyric_state ()) {
3897 if (Text_interface::is_markup (simple))
3898 return MAKE_SYNTAX ("lyric-event", loc, simple,
3899 parser->default_duration_.smobbed_copy ());
3900 } else if (parser->lexer_->is_chord_state ()) {
3901 if (unsmob<Pitch> (simple))
3905 make_chord_elements (loc, simple,
3906 parser->default_duration_.smobbed_copy (),
3913 make_music_with_input (SCM name, Input where)
3915 Music *m = make_music_by_name (name);
3916 m->set_spot (where);
3921 make_simple_markup (SCM a)
3927 make_duration (SCM d, int dots)
3929 int t = scm_to_int (d);
3930 if (t > 0 && (t & (t-1)) == 0)
3931 return Duration (intlog2 (t), dots).smobbed_copy ();
3933 return SCM_UNDEFINED;
3937 make_chord_step (SCM step_scm, Rational alter)
3939 int step = scm_to_int (step_scm);
3942 alter += FLAT_ALTERATION;
3946 Pitch m ((step -1) / 7, (step - 1) % 7, alter);
3947 return m.smobbed_copy ();
3952 make_chord_elements (Input loc, SCM pitch, SCM dur, SCM modification_list)
3954 SCM chord_ctor = ly_lily_module_constant ("construct-chord-elements");
3955 SCM res = scm_call_3 (chord_ctor, pitch, dur, modification_list);
3956 for (SCM s = res; scm_is_pair (s); s = scm_cdr (s))
3958 unsmob<Music> (scm_car (s))->set_spot (loc);
3964 yylex (YYSTYPE *s, YYLTYPE *loc, Lily_parser *parser)
3966 Lily_lexer *lex = parser->lexer_;
3970 int tok = lex->pop_extra_token ();
3973 lex->prepare_for_next_token ();
3974 return lex->yylex ();