]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/parser.yy
Clarifies that multi-measure rests can be used for a single bar.
[lilypond.git] / lily / parser.yy
index 2b5b6c0caae935773ae88ba89277a6e0604532b1..5662c99439d3fe89088d8a654e0b5077a95db4ee 100644 (file)
@@ -129,8 +129,7 @@ get_first_context_id (SCM type, Music *m)
 SCM
 make_simple_markup (SCM a)
 {
-       SCM simple = ly_lily_module_constant ("simple-markup");
-       return scm_list_2 (simple, a);
+       return a;
 }
 
 bool
@@ -164,7 +163,8 @@ make_chord (SCM pitch, SCM dur, SCM modification_list)
 {
        SCM chord_ctor = ly_lily_module_constant ("construct-chord");
        SCM ch = scm_call_3 (chord_ctor, pitch, dur, modification_list);
-       scm_gc_protect_object (ch);
+
+       unsmob_music (ch)->protect();   
        return ch;
 }
 
@@ -364,7 +364,6 @@ parser.yy:352.8-24: warning: symbol `"\\<"' used more than once as a literal str
 %token HYPHEN "--"
 
 %token CHORDMODIFIERS
-%token COMMANDSPANREQUEST
 %token LYRIC_MARKUP
 %token MULTI_MEASURE_REST
 %token SCM_T
@@ -448,7 +447,7 @@ parser.yy:352.8-24: warning: symbol `"\\<"' used more than once as a literal str
 %type <music> chord_body
 %type <music> chord_body_element
 %type <music> command_element
-%type <music> command_req
+%type <music> command_event
 %type <music> context_change
 %type <music> direction_less_event
 %type <music> direction_reqd_event
@@ -569,7 +568,7 @@ object_id_setting:
 
 toplevel_expression:
        lilypond_header {
-               THIS->lexer_->set_identifier (ly_symbol2scm ("$globalheader"), $1);
+               THIS->lexer_->set_identifier (ly_symbol2scm ("$defaultheader"), $1);
        }
        | add_quote {
        
@@ -578,20 +577,20 @@ toplevel_expression:
                Book *book = $1;
                SCM proc = THIS->lexer_->lookup_identifier ("toplevel-book-handler");
                scm_call_2 (proc, THIS->self_scm (), book->self_scm ());
-               scm_gc_unprotect_object (book->self_scm ());
+               book->unprotect ();
        }
        | score_block {
                Score *score = $1;
                
                SCM proc = THIS->lexer_->lookup_identifier ("toplevel-score-handler");
                scm_call_2 (proc, THIS->self_scm (), score->self_scm ());
-               scm_gc_unprotect_object (score->self_scm ());
+               score->unprotect ();
        }
        | toplevel_music {
                Music *music = $1;
                SCM proc = THIS->lexer_->lookup_identifier ("toplevel-music-handler");
                scm_call_2 (proc, THIS->self_scm (), music->self_scm ());
-               scm_gc_unprotect_object (music->self_scm ());
+               music->unprotect (); 
        }
        | full_markup {
                SCM proc = THIS->lexer_->lookup_identifier ("toplevel-text-handler");
@@ -609,7 +608,7 @@ toplevel_expression:
                        id = ly_symbol2scm ("$defaultlayout");
 
                THIS->lexer_->set_identifier (id, od->self_scm ());
-               scm_gc_unprotect_object (od->self_scm ());
+               od->unprotect();
        }
        ;
 
@@ -626,7 +625,7 @@ embedded_scm:
 
 lilypond_header_body:
        {
-               $$ = ly_make_anonymous_module (be_safe_global);
+               $$ = get_header(THIS);
                THIS->lexer_->add_scope ($$);
        }
        | lilypond_header_body assignment  {
@@ -672,22 +671,22 @@ all objects can be unprotected as soon as they're here.
 identifier_init:
        score_block {
                $$ = $1->self_scm ();
-               scm_gc_unprotect_object ($$);
+               $1->unprotect ();
        }
        | output_def {
                $$ = $1->self_scm ();
-               scm_gc_unprotect_object ($$);
+               $1->unprotect ();
        }
        | context_def_spec_block {
                $$ = $1;
        }
        | Music  {
                $$ = $1->self_scm ();
-               scm_gc_unprotect_object ($$);
+               $1->unprotect();
        }
        | post_event {
                $$ = $1->self_scm ();
-               scm_gc_unprotect_object ($$);
+               $1->unprotect();
        }
        | number_expression {
                $$ = $1;
@@ -702,7 +701,7 @@ identifier_init:
                $$ = $1;
        }
        | DIGIT {
-               $$ = scm_int2num ($1);
+               $$ = scm_from_int ($1);
        }
        ;
 
@@ -754,17 +753,17 @@ book_body:
                $$ = new Book;
                $$->set_spot (@$);
                $$->paper_ = dynamic_cast<Output_def*> (unsmob_output_def (THIS->lexer_->lookup_identifier ("$defaultpaper"))->clone ());
-               scm_gc_unprotect_object ($$->paper_->self_scm ());
-               $$->header_ = THIS->lexer_->lookup_identifier ("$globalheader"); 
+               $$->paper_->unprotect ();
+               $$->header_ = THIS->lexer_->lookup_identifier ("$defaultheader"); 
        }
        | book_body paper_block {
                $$->paper_ = $2;
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        | book_body score_block {
                SCM s = $2->self_scm ();
                $$->add_score (s);
-               scm_gc_unprotect_object (s);
+               $2->unprotect();
        }
        | book_body full_markup {
                $$->add_score ($2);
@@ -790,13 +789,13 @@ score_block:
 score_body:
        Music {
                SCM m = $1->self_scm ();
-               scm_gc_unprotect_object (m);
+               $1->unprotect();
                SCM scorify = ly_lily_module_constant ("scorify-music");
                SCM score = scm_call_2 (scorify, m, THIS->self_scm ());
 
-               // pass ownernship to C++ again. 
-               scm_gc_protect_object (score);
+               // pass ownernship to C++ again.
                $$ = unsmob_score (score);
+               $$->protect ();
                $$->set_spot (@$);
        }
        | SCORE_IDENTIFIER {
@@ -819,7 +818,7 @@ score_body:
                {
                        $$->defs_.push ($2);
                }
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        | score_body error {
                $$->error_found_ = true;
@@ -879,7 +878,7 @@ output_def_body:
                THIS->lexer_->push_initial_state ();
        }
        | output_def_head '{' OUTPUT_DEF_IDENTIFIER     {
-               scm_gc_unprotect_object ($1->self_scm ());
+               $1->unprotect ();
                Output_def *o = unsmob_output_def ($3);
                o->input_origin_.set_spot (@$);
                $$ = o;
@@ -901,7 +900,7 @@ output_def_body:
                int m = scm_to_int ($2->get_property ("metronome-count"));
                Duration *d = unsmob_duration ($2->get_property ("tempo-unit"));
                set_tempo ($$, d->get_length (), m);
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        | output_def_body error {
 
@@ -912,7 +911,7 @@ tempo_event:
        TEMPO steno_duration '=' bare_unsigned  {
                $$ = MY_MAKE_MUSIC ("MetronomeChangeEvent");
                $$->set_property ("tempo-unit", $2);
-               $$->set_property ("metronome-count", scm_int2num ( $4));
+               $$->set_property ("metronome-count", scm_from_int ( $4));
        }
        ;
 
@@ -930,7 +929,7 @@ Music_list:
        | Music_list Music {
                SCM s = $$;
                SCM c = scm_cons ($2->self_scm (), SCM_EOL);
-               scm_gc_unprotect_object ($2->self_scm ()); /* UGH */
+               $2->unprotect (); /* UGH */
 
                if (scm_is_pair (scm_cdr (s)))
                        scm_set_cdr_x (scm_cdr (s), c); /* append */
@@ -947,7 +946,7 @@ Music_list:
                m->set_property ("error-found", SCM_BOOL_T);
                SCM s = $$;
                SCM c = scm_cons (m->self_scm (), SCM_EOL);
-               scm_gc_unprotect_object (m->self_scm ()); /* UGH */
+               m->unprotect (); /* UGH */
 
                if (scm_is_pair (scm_cdr (s)))
                        scm_set_cdr_x (scm_cdr (s), c); /* append */
@@ -990,14 +989,14 @@ Repeated_music:
                SCM proc = ly_lily_module_constant ("make-repeated-music");
 
                SCM mus = scm_call_1 (proc, $2);
-               scm_gc_protect_object (mus); // UGH.
                Music *r = unsmob_music (mus);
+               r->protect ();
                if (beg)
                        {
                        r-> set_property ("element", beg->self_scm ());
-                       scm_gc_unprotect_object (beg->self_scm ());
+                       beg->unprotect ();
                        }
-               r->set_property ("repeat-count", scm_int2num (max (times, 1)));
+               r->set_property ("repeat-count", scm_from_int (max (times, 1)));
 
                r-> set_property ("elements",alts);
                if (ly_is_equal ($2, scm_makfrom0str ("tremolo"))) {
@@ -1022,7 +1021,7 @@ Repeated_music:
                                shift -= 1;
                                r->compress (Moment (Rational (1, list_len)));
                        }
-                       scm_call_3 (func, r->self_scm (), scm_int2num (shift), scm_int2num (dots));
+                       scm_call_3 (func, r->self_scm (), scm_from_int (shift), scm_from_int (dots));
 
                }
                r->set_spot (*$4->origin ());
@@ -1108,11 +1107,11 @@ Generic_prefix_music_scm:
        }
        | MUSIC_FUNCTION_MUSIC Music {
                $$ = scm_list_3 ($1, make_input (@$), $2->self_scm ());
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        | MUSIC_FUNCTION_SCM_MUSIC embedded_scm Music {
                $$ = scm_list_4 ($1, make_input (@$), $2, $3->self_scm ());
-               scm_gc_unprotect_object ($3->self_scm ());
+               $3->unprotect ();
        }
        | MUSIC_FUNCTION_SCM_SCM embedded_scm embedded_scm {
                $$ = scm_list_4 ($1, make_input (@$), $2, $3);
@@ -1122,25 +1121,25 @@ Generic_prefix_music_scm:
        }
        | MUSIC_FUNCTION_MARKUP_MUSIC full_markup Music {
                $$ = scm_list_4 ($1, make_input (@$), $2, $3->self_scm ());
-               scm_gc_unprotect_object ($3->self_scm ());
+               $3->unprotect ();
        }
        | MUSIC_FUNCTION_MARKUP_MARKUP full_markup full_markup {
                $$ = scm_list_4 ($1, make_input (@$), $2, $3);
        }
        | MUSIC_FUNCTION_MUSIC_MUSIC Music Music {
                $$ = scm_list_4 ($1, make_input (@$), $2->self_scm (), $3->self_scm ());
-               scm_gc_unprotect_object ($2->self_scm ());
-               scm_gc_unprotect_object ($3->self_scm ());
+               $2->unprotect ();
+               $3->unprotect ();
        }
        | MUSIC_FUNCTION_SCM_MUSIC_MUSIC embedded_scm Music Music {
                $$ = scm_list_5 ($1, make_input (@$), $2, $3->self_scm (), $4->self_scm ());
-               scm_gc_unprotect_object ($4->self_scm ());
-               scm_gc_unprotect_object ($3->self_scm ());
+               $4->unprotect ();
+               $3->unprotect ();
        }
        | MUSIC_FUNCTION_MARKUP_MUSIC_MUSIC full_markup Music Music {
                $$ = scm_list_5 ($1, make_input (@$), $2, $3->self_scm (), $4->self_scm ());
-               scm_gc_unprotect_object ($3->self_scm ());
-               scm_gc_unprotect_object ($4->self_scm ());
+               $3->unprotect ();
+               $4->unprotect ();
        }
        ;
 
@@ -1168,7 +1167,7 @@ Generic_prefix_music:
                if (unsmob_music (m))
                        {
                        $$ = unsmob_music (m);
-                       scm_gc_protect_object (m);
+                       $$->protect ();
                        }
                else
                        {
@@ -1207,9 +1206,9 @@ Prefix_composite_music:
                $$->set_spot (@$);
 
                $$->set_property ("element", mp->self_scm ());
-               scm_gc_unprotect_object (mp->self_scm ());
-               $$->set_property ("numerator", scm_int2num (n));
-               $$->set_property ("denominator", scm_int2num (d));
+               mp->unprotect();
+               $$->set_property ("numerator", scm_from_int (n));
+               $$->set_property ("denominator", scm_from_int (d));
                $$->compress (Moment (Rational (n,d)));
 
        }
@@ -1222,7 +1221,7 @@ Prefix_composite_music:
 
                p->transpose (pitch_interval (from, to));
                $$->set_property ("element", p->self_scm ());
-               scm_gc_unprotect_object (p->self_scm ());
+               p->unprotect();
        }
        | mode_changing_head Grouped_music_list {
                if ($1 == ly_symbol2scm ("chords"))
@@ -1230,7 +1229,7 @@ Prefix_composite_music:
                  Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
                  chm->set_property ("element", $2->self_scm ());
                  $$ = chm;
-                 scm_gc_unprotect_object ($2->self_scm ());
+                 $2->unprotect();
                }
                else
                {
@@ -1245,7 +1244,7 @@ Prefix_composite_music:
                {
                  Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
                  chm->set_property ("element", $$->self_scm ());
-                 scm_gc_unprotect_object ($$->self_scm ());
+                 $$->unprotect();
                  $$ = chm;
                }
                THIS->lexer_->pop_state ();
@@ -1322,14 +1321,14 @@ relative_music:
                Music *m = $3;
                Pitch start = *unsmob_pitch ($2);
                $$ = make_music_relative (start, m);
-               scm_gc_unprotect_object (m->self_scm ());
+               m->unprotect();
        }
        | RELATIVE Composite_music {
                Music *m = $2;
 
                Pitch middle_c (0, 0, 0);
                $$ = make_music_relative (middle_c, m);
-               scm_gc_unprotect_object (m->self_scm ());
+               m->unprotect();
        }
        ;
 
@@ -1378,7 +1377,7 @@ re_rhythmed_music:
                all->set_property ("elements", scm_cons (voice->self_scm (),
                        lst));
                $$ = all;
-               scm_gc_unprotect_object (voice->self_scm ());
+               voice->unprotect ();
        }
        | LYRICSTO simple_string {
                THIS->lexer_->push_lyric_state ();
@@ -1387,7 +1386,7 @@ re_rhythmed_music:
                Music *music = $4;
                SCM name = $2;
                $$ = make_lyric_combine_music (name, music);
-               scm_gc_unprotect_object (music->self_scm ());
+               music->unprotect();
        }
        ;
 
@@ -1514,6 +1513,9 @@ simple_string: STRING {
        | LYRICS_STRING {
                $$ = $1;
        }
+       | STRING_IDENTIFIER {
+               $$ = $1;
+       }
        ;
 
 scalar: string {
@@ -1524,15 +1526,6 @@ scalar: string {
        }
        | bare_number {
                $$ = $1;
-/*             if (scm_integer_p ($1) == SCM_BOOL_T)
-               {
-                       int k = scm_to_int (scm_inexact_to_exact ($1));
-                       $$ = k;
-               } else
-               {
-                       THIS->parser_error (@1, _ ("need integer number arg"));
-                       $$ = 0;
-               }*/
        }
         | embedded_scm {
                $$ = $1;
@@ -1541,7 +1534,7 @@ scalar: string {
                $$ = $1;
        }
        | DIGIT {
-               $$ = scm_int2num ($1);
+               $$ = scm_from_int ($1);
        }
        ;
 
@@ -1629,7 +1622,7 @@ chord_body_elements:
        /* empty */             { $$ = SCM_EOL; }
        | chord_body_elements chord_body_element {
                $$ = scm_cons ($2->self_scm (), $1);
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        ;
 
@@ -1656,7 +1649,7 @@ chord_body_element:
                if (scm_is_number (check))
                {
                        int q = scm_to_int (check);
-                       n->set_property ("absolute-octave", scm_int2num (q-1));
+                       n->set_property ("absolute-octave", scm_from_int (q-1));
                }
 
                
@@ -1681,15 +1674,15 @@ add_quote:
                SCM adder = ly_lily_module_constant ("add-quotable");
                
                scm_call_2 (adder, $2, $3->self_scm ());
-               scm_gc_unprotect_object ($3->self_scm ());
+               $3->unprotect();
        }
        ;
 
 command_element:
-       command_req {
+       command_event {
                $$ = MY_MAKE_MUSIC ("EventChord");
                $$->set_property ("elements", scm_cons ($1->self_scm (), SCM_EOL));
-               scm_gc_unprotect_object ($1->self_scm ());
+               $1->unprotect();
 
                $$-> set_spot (@$);
                $1-> set_spot (@$);
@@ -1708,23 +1701,23 @@ command_element:
        }
        | E_BRACKET_OPEN {
                Music *m = MY_MAKE_MUSIC ("LigatureEvent");
-               m->set_property ("span-direction", scm_int2num (START));
+               m->set_property ("span-direction", scm_from_int (START));
                m->set_spot (@$);
 
                $$ = MY_MAKE_MUSIC ("EventChord");
                $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
-               scm_gc_unprotect_object (m->self_scm ());
+               m->unprotect();
                $$->set_spot (@$);
        }
        | E_BRACKET_CLOSE {
                Music *m = MY_MAKE_MUSIC ("LigatureEvent");
-               m->set_property ("span-direction", scm_int2num (STOP));
+               m->set_property ("span-direction", scm_from_int (STOP));
                m->set_spot (@$);
 
                $$ = MY_MAKE_MUSIC ("EventChord");
                $$->set_property ("elements", scm_cons (m->self_scm (), SCM_EOL));
                $$->set_spot (@$);
-               scm_gc_unprotect_object (m->self_scm ());
+               m->unprotect ();
        }
        | E_BACKSLASH {
                $$ = MY_MAKE_MUSIC ("VoiceSeparator");
@@ -1772,15 +1765,15 @@ command_element:
                SCM proc = ly_lily_module_constant ("make-clef-set");
 
                SCM result = scm_call_1 (proc, $2);
-               scm_gc_protect_object (result);
                $$ = unsmob_music (result);
+               $$->protect ();
        }
        | TIME_T fraction  {
                SCM proc = ly_lily_module_constant ("make-time-signature-set");
 
                SCM result = scm_apply_2   (proc, scm_car ($2), scm_cdr ($2), SCM_EOL);
-               scm_gc_protect_object (result);
                $$ = unsmob_music (result);
+               $$->protect ();
        }
        | MARK scalar {
                SCM proc = ly_lily_module_constant ("make-mark-set");
@@ -1788,10 +1781,11 @@ command_element:
                SCM result = scm_call_1 (proc, $2);
                scm_gc_protect_object (result);
                $$ = unsmob_music (result);
+               $$->protect ();
        }
        ;
 
-command_req:
+command_event:
        E_TILDE {
                $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent");
        }
@@ -1830,12 +1824,12 @@ post_events:
        | post_events post_event {
                $2->set_spot (@2);
                $$ = scm_cons ($2->self_scm (), $$);
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        | post_events tagged_post_event {
                $2 -> set_spot (@2);
                $$ = scm_cons ($2->self_scm (), $$);
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        ;
 
@@ -1864,12 +1858,12 @@ post_event:
        }
        | script_dir direction_reqd_event {
                if ($1)
-                       $2->set_property ("direction", scm_int2num ($1));
+                       $2->set_property ("direction", scm_from_int ($1));
                $$ = $2;
        }
        | script_dir direction_less_event {
                if ($1)
-                       $2->set_property ("direction", scm_int2num ($1));
+                       $2->set_property ("direction", scm_from_int ($1));
                $$ = $2;
        }
        | string_number_event
@@ -1878,7 +1872,7 @@ post_event:
 string_number_event:
        E_UNSIGNED {
                Music *s = MY_MAKE_MUSIC ("StringNumberEvent");
-               s->set_property ("string-number", scm_int2num ($1));
+               s->set_property ("string-number", scm_from_int ($1));
                s->set_spot (@$);
                $$ = s;
        }
@@ -1938,7 +1932,7 @@ direction_less_event:
        | tremolo_type  {
                Music *a = MY_MAKE_MUSIC ("TremoloEvent");
                a->set_spot (@$);
-               a->set_property ("tremolo-type", scm_int2num ($1));
+               a->set_property ("tremolo-type", scm_from_int ($1));
                $$ = a;
         }
        ;       
@@ -1959,9 +1953,9 @@ direction_reqd_event:
 
 octave_check:
        /**/ { $$ = SCM_EOL; }
-       | '='  { $$ = scm_int2num (0); }
-       | '=' sub_quotes { $$ = scm_int2num ($2); }
-       | '=' sup_quotes { $$ = scm_int2num ($2); }
+       | '='  { $$ = scm_from_int (0); }
+       | '=' sub_quotes { $$ = scm_from_int ($2); }
+       | '=' sup_quotes { $$ = scm_from_int ($2); }
        ;
 
 sup_quotes:
@@ -2047,7 +2041,7 @@ gen_text_def:
        }
        | DIGIT {
                Music *t = MY_MAKE_MUSIC ("FingerEvent");
-               t->set_property ("digit", scm_int2num ($1));
+               t->set_property ("digit", scm_from_int ($1));
                t->set_spot (@$);
                $$ = t;
        }
@@ -2142,7 +2136,7 @@ multiplied_duration:
 fraction:
        FRACTION { $$ = $1; }
        | UNSIGNED '/' UNSIGNED {
-               $$ = scm_cons (scm_int2num ($1), scm_int2num ($3));
+               $$ = scm_cons (scm_from_int ($1), scm_from_int ($3));
        }
        ;
 
@@ -2168,12 +2162,12 @@ tremolo_type:
 
 bass_number:
        DIGIT   {
-               $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
+               $$ = scm_number_to_string (scm_from_int ($1), scm_from_int (10));
                $$ = scm_list_2 (ly_lily_module_constant ("number-markup"),
                                $$);
        }
        | UNSIGNED {
-               $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
+               $$ = scm_number_to_string (scm_from_int ($1), scm_from_int (10));
                $$ = scm_list_2 (ly_lily_module_constant ("number-markup"),
                                $$);
        }
@@ -2191,15 +2185,14 @@ bass_figure:
        FIGURE_SPACE {
                Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
                $$ = bfr->self_scm ();
-               scm_gc_unprotect_object ($$);
+               bfr->unprotect ();
        }
        | bass_number  {
                Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
                $$ = bfr->self_scm ();
 
                bfr->set_property ("figure", $1);
-
-               scm_gc_unprotect_object ($$);
+               bfr->unprotect ();
        }
        | bass_figure bass_mod {
                Music *m = unsmob_music ($1);
@@ -2207,9 +2200,9 @@ bass_figure:
                        SCM salter = m->get_property ("alteration");
                        int alter = scm_is_number (salter) ? scm_to_int (salter) : 0;
                        m->set_property ("alteration",
-                               scm_int2num (alter + $2));
+                               scm_from_int (alter + $2));
                } else {
-                       m->set_property ("alteration", scm_int2num (0));
+                       m->set_property ("alteration", scm_from_int (0));
                }
        }
        ;
@@ -2269,7 +2262,7 @@ simple_element:
                if (scm_is_number ($4))
                {
                        int q = scm_to_int ($4);
-                       n->set_property ("absolute-octave", scm_int2num (q-1));
+                       n->set_property ("absolute-octave", scm_from_int (q-1));
                }
 
                if ($3 % 2)
@@ -2279,7 +2272,7 @@ simple_element:
 
                Music *v = MY_MAKE_MUSIC ("EventChord");
                v->set_property ("elements", scm_list_1 (n->self_scm ()));
-               scm_gc_unprotect_object (n->self_scm ());
+               n->unprotect ();
 
                v->set_spot (@$);
                n->set_spot (@$);
@@ -2292,7 +2285,7 @@ simple_element:
 
                Music *v = MY_MAKE_MUSIC ("EventChord");
                v->set_property ("elements", scm_list_1 (n->self_scm ()));
-               scm_gc_unprotect_object (n->self_scm ());
+               n->unprotect ();
                v->set_spot (@$);
                n->set_spot (@$);
                $$ = v;
@@ -2323,27 +2316,27 @@ simple_element:
                velt->set_property ("elements", scm_list_1 (ev->self_scm ()));
                velt->set_spot (@$);
 
-               scm_gc_unprotect_object (ev->self_scm ());
+               ev->unprotect();
 
                $$ = velt;
        }
        | MULTI_MEASURE_REST optional_notemode_duration         {
                SCM proc = ly_lily_module_constant ("make-multi-measure-rest");
                SCM mus = scm_call_2 (proc, $2, make_input (@$));
-               scm_gc_protect_object (mus);
                $$ = unsmob_music (mus);
+               $$->protect ();
        }
        
        | lyric_element optional_notemode_duration      {
                if (!THIS->lexer_->is_lyric_state ())
                        THIS->parser_error (@1, _ ("have to be in Lyric mode for lyrics"));
 
-               Music *lreq = MY_MAKE_MUSIC ("LyricEvent");
-               lreq->set_property ("text", $1);
-               lreq->set_property ("duration",$2);
-               lreq->set_spot (@$);
+               Music *levent = MY_MAKE_MUSIC ("LyricEvent");
+               levent->set_property ("text", $1);
+               levent->set_property ("duration",$2);
+               levent->set_spot (@$);
                Music *velt = MY_MAKE_MUSIC ("EventChord");
-               velt->set_property ("elements", scm_list_1 (lreq->self_scm ()));
+               velt->set_property ("elements", scm_list_1 (levent->self_scm ()));
 
                $$= velt;
        }
@@ -2359,7 +2352,7 @@ lyric_element:
                $$ = $1;
        }
        | LYRICS_STRING {
-               $$ = make_simple_markup ($1);
+               $$ = $1;
        }
        ;
 
@@ -2466,7 +2459,7 @@ number_factor:
 
 bare_number:
        UNSIGNED        {
-               $$ = scm_int2num ($1);
+               $$ = scm_from_int ($1);
        }
        | REAL          {
                $$ = $1;
@@ -2475,10 +2468,10 @@ bare_number:
                $$ = $1;
        }
        | REAL NUMBER_IDENTIFIER        {
-               $$ = scm_make_real (scm_to_double ($1) *scm_to_double ($2));
+               $$ = scm_from_double (scm_to_double ($1) *scm_to_double ($2));
        }
        | UNSIGNED NUMBER_IDENTIFIER    {
-               $$ = scm_make_real ($1 *scm_to_double ($2));
+               $$ = scm_from_double ($1 *scm_to_double ($2));
        }
        ;
 
@@ -2614,7 +2607,7 @@ simple_markup:
        } '{' score_body '}' {
                Score * sc = $4;
                $$ = scm_list_2 (ly_lily_module_constant ("score-markup"), sc->self_scm ());
-               scm_gc_unprotect_object (sc->self_scm ());
+               sc->unprotect ();
                THIS->lexer_->pop_state ();
        }
        | MARKUP_HEAD_SCM0 embedded_scm {
@@ -2708,7 +2701,7 @@ Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
 
                *destination = p->self_scm ();
                return OUTPUT_DEF_IDENTIFIER;
-       } else if (Text_interface::markup_p (sid)) {
+       } else if (Text_interface::is_markup (sid)) {
                *destination = sid;
                if (is_lyric_state ())
                        return LYRIC_MARKUP_IDENTIFIER;
@@ -2781,7 +2774,7 @@ context_spec_music (SCM type, SCM id, Music *m, SCM ops)
        Music *csm = MY_MAKE_MUSIC ("ContextSpeccedMusic");
 
        csm->set_property ("element", m->self_scm ());
-       scm_gc_unprotect_object (m->self_scm ());
+       m->unprotect ();
 
        csm->set_property ("context-type",
                scm_is_symbol (type) ? type : scm_string_to_symbol (type));