]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/parser.yy
* Documentation/user/point-and-click.itely: simplify p&c
[lilypond.git] / lily / parser.yy
index db3f0ce8f9b20e0dfb07c844d1dada273f7d6846..70f35f500000a3fb516bd9541d17c17bef939723 100644 (file)
@@ -5,7 +5,7 @@
 
   source file of the GNU LilyPond music typesetter
 
-  (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c) 1997--2005 Han-Wen Nienhuys <hanwen@xs4all.nl>
                  Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
@@ -20,15 +20,15 @@ FIXME:
 
 #include "config.hh"
 
-#include <ctype.h>
-#include <stdlib.h>
-#include <stdio.h>
-
+#include <cctype>
+#include <cstdlib>
+#include <cstdio>
+using namespace std;
 
 #include "book.hh"
 #include "context-def.hh"
 #include "dimensions.hh"
-#include "event.hh"
+#include "music.hh"
 #include "file-path.hh"
 #include "input-smob.hh"
 #include "input.hh"
@@ -41,10 +41,11 @@ FIXME:
 #include "paper-book.hh"
 #include "output-def.hh"
 #include "scm-hash.hh"
-#include "scm-option.hh"
+#include "program-option.hh"
 #include "score.hh"
-#include "text-item.hh"
+#include "text-interface.hh"
 #include "warn.hh"
+#include "music.hh"
 
 #define MY_MAKE_MUSIC(x)  make_music_by_name (ly_symbol2scm (x))
 
@@ -84,7 +85,7 @@ tag_music (Music *m, SCM tag, Input ip)
        SCM tags = m->get_property ("tags");
        if (scm_is_symbol (tag))
                tags = scm_cons (tag, tags);
-       else if (ly_c_list_p (tag))
+       else if (ly_is_list (tag))
                tags = ly_append2 (tag, tags);
        else
                ip.warning (_ ("tag must be symbol or list of symbols"));
@@ -128,8 +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
@@ -163,7 +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;
 }
 
@@ -171,8 +172,8 @@ make_chord (SCM pitch, SCM dur, SCM modification_list)
 bool
 ly_input_procedure_p (SCM x)
 {
-       return ly_c_procedure_p (x)
-               || (scm_is_pair (x) && ly_c_procedure_p (scm_car (x)));
+       return ly_is_procedure (x)
+               || (scm_is_pair (x) && ly_is_procedure (scm_car (x)));
 }
 
 Music*
@@ -199,7 +200,7 @@ make_music_relative (Pitch start, Music *music)
 Music*
 make_lyric_combine_music (SCM name, Music *music)
 {
-       Music *combine = MY_MAKE_MUSIC ("NewLyricCombineMusic");
+       Music *combine = MY_MAKE_MUSIC ("LyricCombineMusic");
        combine->set_property ("element", music->self_scm ());
        combine->set_property ("associated-context", name);
        return combine;
@@ -211,7 +212,9 @@ make_lyric_combine_music (SCM name, Music *music)
 deleting them.  Let's hope that a stack overflow doesnt trigger a move
 of the parse stack onto the heap. */
 
+%left PREC_TOP
 %left ADDLYRICS
+%left PREC_BOT
 
 %union {
        Book *book;
@@ -279,6 +282,7 @@ or
 %token CONSISTS "\\consists"
 %token CONTEXT "\\context"
 %token DEFAULT "\\default"
+%token DEFAULTCHILD "\\defaultchild"
 %token DENIES "\\denies"
 %token DESCRIPTION "\\description"
 %token DRUMMODE "\\drummode"
@@ -346,15 +350,12 @@ or
 %token E_OPEN "\\("
 %token E_BRACKET_CLOSE "\\]"
 %token E_ANGLE_OPEN "\\<"
+%token E_PLUS "\\+"
 %token E_TILDE "\\~"
 %token EXTENDER "__"
-/*  These used at all?
-  %token FIGURE_BRACKET_CLOSE 
-  %token FIGURE_BRACKET_OPEN
-
-parser.yy:348.8-25: warning: symbol `"\\>"' used more than once as a literal string
-parser.yy:352.8-24: warning: symbol `"\\<"' used more than once as a literal string
 
+/*
+If we give names, Bison complains.
 */
 %token FIGURE_CLOSE /* "\\>" */
 %token FIGURE_OPEN /* "\\<" */
@@ -362,7 +363,6 @@ 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
@@ -372,8 +372,7 @@ parser.yy:352.8-24: warning: symbol `"\\<"' used more than once as a literal str
 %token <i> E_UNSIGNED
 %token <i> UNSIGNED
 
-%token <id> IDENTIFIER
-
+%token <scm> BOOK_IDENTIFIER
 %token <scm> CHORDMODIFIER_PITCH
 %token <scm> CHORD_MODIFIER
 %token <scm> CONTEXT_DEF_IDENTIFIER
@@ -406,6 +405,7 @@ parser.yy:352.8-24: warning: symbol `"\\<"' used more than once as a literal str
 %token <scm> MUSIC_FUNCTION_SCM_MUSIC_MUSIC 
 %token <scm> MUSIC_FUNCTION_SCM_SCM 
 %token <scm> MUSIC_FUNCTION_SCM_SCM_MUSIC 
+%token <scm> MUSIC_FUNCTION_SCM_SCM_SCM 
 %token <scm> MUSIC_IDENTIFIER
 %token <scm> NOTENAME_PITCH
 %token <scm> NUMBER_IDENTIFIER
@@ -423,9 +423,8 @@ parser.yy:352.8-24: warning: symbol `"\\<"' used more than once as a literal str
 %type <book> book_block
 %type <book> book_body
 
-%type <i> bare_int
 %type <i> bare_unsigned
-%type <i> bass_mod
+%type <i> figured_bass_alteration
 %type <i> dots
 %type <i> exclamations
 %type <i> optional_rest
@@ -447,7 +446,7 @@ 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
@@ -476,8 +475,9 @@ parser.yy:352.8-24: warning: symbol `"\\<"' used more than once as a literal str
 %type <scm> assignment_id
 %type <scm> bare_number
 %type <scm> bass_figure
-%type <scm> bass_number
+%type <scm> figured_bass_modification
 %type <scm> br_bass_figure
+%type <scm> bass_number
 %type <scm> chord_body_elements
 %type <scm> chord_item
 %type <scm> chord_items
@@ -568,7 +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 {
        
@@ -577,20 +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 = $1;
                SCM proc = THIS->lexer_->lookup_identifier ("toplevel-music-handler");
                scm_call_2 (proc, THIS->self_scm (), music->self_scm ());
-               scm_gc_unprotect_object (music->self_scm ());
+               music->unprotect (); 
        }
        | full_markup {
                SCM proc = THIS->lexer_->lookup_identifier ("toplevel-text-handler");
@@ -608,7 +608,7 @@ toplevel_expression:
                        id = ly_symbol2scm ("$defaultlayout");
 
                THIS->lexer_->set_identifier (id, od->self_scm ());
-               scm_gc_unprotect_object (od->self_scm ());
+               od->unprotect();
        }
        ;
 
@@ -625,7 +625,7 @@ embedded_scm:
 
 lilypond_header_body:
        {
-               $$ = ly_make_anonymous_module (be_safe_global);
+               $$ = get_header(THIS);
                THIS->lexer_->add_scope ($$);
        }
        | lilypond_header_body assignment  {
@@ -671,22 +671,26 @@ all objects can be unprotected as soon as they're here.
 identifier_init:
        score_block {
                $$ = $1->self_scm ();
-               scm_gc_unprotect_object ($$);
+               $1->unprotect ();
+       }
+       | book_block {
+               $$ = $1->self_scm ();
+               $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;
@@ -701,7 +705,7 @@ identifier_init:
                $$ = $1;
        }
        | DIGIT {
-               $$ = scm_int2num ($1);
+               $$ = scm_from_int ($1);
        }
        ;
 
@@ -753,17 +757,21 @@ 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 ();
+               $$->header_ = THIS->lexer_->lookup_identifier ("$defaultheader"); 
+       }
+       | BOOK_IDENTIFIER {
+               $$ = unsmob_book ($1);
+               $$->set_spot (@$);
        }
        | book_body paper_block {
                $$->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);
@@ -787,22 +795,24 @@ score_block:
        ;
 
 score_body:
-       /**/    {
-               $$ = new Score;
+       Music {
+               SCM m = $1->self_scm ();
+               $1->unprotect();
+               SCM scorify = ly_lily_module_constant ("scorify-music");
+               SCM score = scm_call_2 (scorify, m, THIS->self_scm ());
+
+               // pass ownernship to C++ again.
+               $$ = unsmob_score (score);
+               $$->protect ();
                $$->set_spot (@$);
        }
        | SCORE_IDENTIFIER {
-               $$ = new Score ( *unsmob_score ($1));
+               $$ = unsmob_score ($1);
                $$->set_spot (@$);
        }
        | score_body object_id_setting {
                $$->user_key_ = ly_scm2string ($2);
        }
-       | score_body Music {
-               SCM m = $2->self_scm ();
-               scm_gc_unprotect_object (m);
-               $$->set_music (m, THIS->self_scm ());
-       }
        | score_body lilypond_header    {
                $$->header_ = $2;
        }
@@ -816,7 +826,7 @@ score_body:
                {
                        $$->defs_.push ($2);
                }
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        | score_body error {
                $$->error_found_ = true;
@@ -876,7 +886,7 @@ 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 ($3);
                o->input_origin_.set_spot (@$);
                $$ = o;
@@ -898,7 +908,7 @@ output_def_body:
                int m = scm_to_int ($2->get_property ("metronome-count"));
                Duration *d = unsmob_duration ($2->get_property ("tempo-unit"));
                set_tempo ($$, d->get_length (), m);
-               scm_gc_unprotect_object ($2->self_scm ());
+               $2->unprotect ();
        }
        | output_def_body error {
 
@@ -909,7 +919,7 @@ 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));
        }
        ;
 
@@ -927,7 +937,7 @@ 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 */
@@ -944,7 +954,7 @@ 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 */
@@ -987,17 +997,17 @@ 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 (times >? 1));
+               r->set_property ("repeat-count", scm_from_int (max (times, 1)));
 
                r-> set_property ("elements",alts);
-               if (ly_c_equal_p ($2, scm_makfrom0str ("tremolo"))) {
+               if (ly_is_equal ($2, scm_makfrom0str ("tremolo"))) {
                        /*
                        TODO: move this code to Scheme.
                        */
@@ -1019,7 +1029,7 @@ 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 ());
@@ -1105,39 +1115,42 @@ 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 {
                $$ = scm_list_4 ($1, make_input (@$), $2, $3);
        }
+       | MUSIC_FUNCTION_SCM_SCM_SCM embedded_scm embedded_scm embedded_scm {
+               $$ = scm_list_5 ($1, make_input (@$), $2, $3, $4);
+       }
        | MUSIC_FUNCTION_SCM_SCM_MUSIC embedded_scm embedded_scm Music {
                $$ = scm_list_5 ($1, make_input (@$), $2, $3, $4->self_scm ());
        }
        | MUSIC_FUNCTION_MARKUP_MUSIC full_markup Music {
                $$ = 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 ();
        }
        ;
 
@@ -1165,7 +1178,7 @@ Generic_prefix_music:
                if (unsmob_music (m))
                        {
                        $$ = unsmob_music (m);
-                       scm_gc_protect_object (m);
+                       $$->protect ();
                        }
                else
                        {
@@ -1204,9 +1217,9 @@ 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)));
 
        }
@@ -1219,7 +1232,7 @@ Prefix_composite_music:
 
                p->transpose (pitch_interval (from, to));
                $$->set_property ("element", p->self_scm ());
-               scm_gc_unprotect_object (p->self_scm ());
+               p->unprotect();
        }
        | mode_changing_head Grouped_music_list {
                if ($1 == ly_symbol2scm ("chords"))
@@ -1227,7 +1240,7 @@ Prefix_composite_music:
                  Music *chm = MY_MAKE_MUSIC ("UnrelativableMusic");
                  chm->set_property ("element", $2->self_scm ());
                  $$ = chm;
-                 scm_gc_unprotect_object ($2->self_scm ());
+                 $2->unprotect();
                }
                else
                {
@@ -1242,7 +1255,7 @@ 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 ();
@@ -1319,14 +1332,14 @@ 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();
        }
        ;
 
@@ -1375,7 +1388,7 @@ re_rhythmed_music:
                all->set_property ("elements", scm_cons (voice->self_scm (),
                        lst));
                $$ = all;
-               scm_gc_unprotect_object (voice->self_scm ());
+               voice->unprotect ();
        }
        | LYRICSTO simple_string {
                THIS->lexer_->push_lyric_state ();
@@ -1384,7 +1397,7 @@ re_rhythmed_music:
                Music *music = $4;
                SCM name = $2;
                $$ = make_lyric_combine_music (name, music);
-               scm_gc_unprotect_object (music->self_scm ());
+               music->unprotect();
        }
        ;
 
@@ -1410,7 +1423,11 @@ property_operation:
        }
        | OVERRIDE simple_string embedded_scm '=' embedded_scm {
                $$ = scm_list_4 (ly_symbol2scm ("push"),
-                       scm_string_to_symbol ($2), $3, $5);
+                       scm_string_to_symbol ($2), $5, $3);
+       }
+       | OVERRIDE simple_string embedded_scm embedded_scm '=' embedded_scm {
+               $$ = scm_list_5 (ly_symbol2scm ("push"),
+                               scm_string_to_symbol ($2), $6, $4, $3);
        }
        | REVERT simple_string embedded_scm {
                $$ = scm_list_3 (ly_symbol2scm ("pop"),
@@ -1423,6 +1440,7 @@ context_def_mod:
        | REMOVE { $$ = ly_symbol2scm ("remove"); }
 
        | ACCEPTS { $$ = ly_symbol2scm ("accepts"); }
+       | DEFAULTCHILD { $$ = ly_symbol2scm ("default-child"); }
        | DENIES { $$ = ly_symbol2scm ("denies"); }
 
        | ALIAS { $$ = ly_symbol2scm ("alias"); }
@@ -1457,10 +1475,17 @@ context_prop_spec:
 music_property_def:
        OVERRIDE context_prop_spec embedded_scm '=' scalar {
                $$ = property_op_to_music (scm_list_4 (
-                       ly_symbol2scm ("poppush"),
+                       ly_symbol2scm ("push"),
                        scm_cadr ($2),
-                       $3, $5));
-               $$= context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
+                       $5, $3));
+               $$ = context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
+       }
+       | OVERRIDE context_prop_spec embedded_scm  embedded_scm '=' scalar {
+               $$ = property_op_to_music (scm_list_5 (
+                       ly_symbol2scm ("push"),
+                       scm_cadr ($2),
+                       $6, $4, $3));
+               $$ = context_spec_music (scm_car ($2), SCM_UNDEFINED, $$, SCM_EOL);
        }
        | REVERT context_prop_spec embedded_scm {
                $$ = property_op_to_music (scm_list_3 (
@@ -1510,6 +1535,9 @@ simple_string: STRING {
        | LYRICS_STRING {
                $$ = $1;
        }
+       | STRING_IDENTIFIER {
+               $$ = $1;
+       }
        ;
 
 scalar: string {
@@ -1518,8 +1546,8 @@ scalar: string {
        | LYRICS_STRING {
                $$ = $1;
        }
-        | bare_int {
-               $$ = scm_int2num ($1);
+       | bare_number {
+               $$ = $1;
        }
         | embedded_scm {
                $$ = $1;
@@ -1528,7 +1556,7 @@ scalar: string {
                $$ = $1;
        }
        | DIGIT {
-               $$ = scm_int2num ($1);
+               $$ = scm_from_int ($1);
        }
        ;
 
@@ -1616,7 +1644,7 @@ 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 ();
        }
        ;
 
@@ -1643,7 +1671,7 @@ 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));
                }
 
                
@@ -1668,15 +1696,15 @@ 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 (@$);
                $1-> set_spot (@$);
@@ -1695,23 +1723,23 @@ 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");
@@ -1759,26 +1787,26 @@ 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");
 
                SCM result = scm_call_1 (proc, $2);
-               scm_gc_protect_object (result);
                $$ = unsmob_music (result);
+               $$->protect ();
        }
        ;
 
-command_req:
+command_event:
        E_TILDE {
                $$ = MY_MAKE_MUSIC ("PesOrFlexaEvent");
        }
@@ -1817,12 +1845,12 @@ post_events:
        | post_events post_event {
                $2->set_spot (@2);
                $$ = 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 ();
        }
        ;
 
@@ -1851,12 +1879,12 @@ 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
@@ -1865,7 +1893,7 @@ 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 ($1));
                s->set_spot (@$);
                $$ = s;
        }
@@ -1925,7 +1953,7 @@ direction_less_event:
        | tremolo_type  {
                Music *a = MY_MAKE_MUSIC ("TremoloEvent");
                a->set_spot (@$);
-               a->set_property ("tremolo-type", scm_int2num ($1));
+               a->set_property ("tremolo-type", scm_from_int ($1));
                $$ = a;
         }
        ;       
@@ -1946,9 +1974,9 @@ 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:
@@ -2034,7 +2062,7 @@ gen_text_def:
        }
        | DIGIT {
                Music *t = MY_MAKE_MUSIC ("FingerEvent");
-               t->set_property ("digit", scm_int2num ($1));
+               t->set_property ("digit", scm_from_int ($1));
                t->set_spot (@$);
                $$ = t;
        }
@@ -2087,14 +2115,10 @@ optional_notemode_duration:
        {
                Duration dd = THIS->default_duration_;
                $$ = dd.smobbed_copy ();
-
-               THIS->beam_check ($$);
        }
        | multiplied_duration   {
                $$ = $1;
                THIS->default_duration_ = *unsmob_duration ($$);
-
-               THIS->beam_check ($$);
        }
        ;
 
@@ -2133,7 +2157,7 @@ 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));
        }
        ;
 
@@ -2159,20 +2183,16 @@ tremolo_type:
 
 bass_number:
        DIGIT   {
-               $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
-               $$ = scm_list_2 (ly_lily_module_constant ("number-markup"),
-                               $$);
+               $$ = scm_from_int ($1);
        }
        | UNSIGNED {
-               $$ = scm_number_to_string (scm_int2num ($1), scm_int2num (10));
-               $$ = scm_list_2 (ly_lily_module_constant ("number-markup"),
-                               $$);
+               $$ = scm_from_int ($1);
        }
        | STRING { $$ = $1; }
        | full_markup { $$ = $1; }
        ;
 
-bass_mod:
+figured_bass_alteration:
        '-'     { $$ = -2; }
        | '+'   { $$ = 2; }
        | '!'   { $$ = 0; }
@@ -2182,40 +2202,71 @@ bass_figure:
        FIGURE_SPACE {
                Music *bfr = MY_MAKE_MUSIC ("BassFigureEvent");
                $$ = 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);
+               if (scm_is_number ($1))
+                       bfr->set_property ("figure", $1);
+               else if (Text_interface::is_markup ($1))
+                       bfr->set_property ("text", $1);
 
-               scm_gc_unprotect_object ($$);
+               bfr->unprotect ();
        }
-       | bass_figure bass_mod {
+       | bass_figure ']' {
+               $$ = $1;
+               unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
+       }
+       | bass_figure figured_bass_alteration {
                Music *m = unsmob_music ($1);
                if ($2) {
                        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));
                }
        }
+       | bass_figure figured_bass_modification  {
+               Music *m = unsmob_music ($1);
+               if ($2 == ly_symbol2scm ("plus"))
+                       {
+                       m->set_property ("augmented", SCM_BOOL_T);
+                       }
+               else if ($2 == ly_symbol2scm ("slash"))
+                       {
+                       m->set_property ("diminished", SCM_BOOL_T);
+                       }
+               else if ($2 == ly_symbol2scm ("exclamation"))
+                       {
+                       m->set_property ("no-continuation", SCM_BOOL_T);
+                       }
+       }
        ;
 
-br_bass_figure:
-       '[' bass_figure {
-               $$ = $2;
-               unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
+
+figured_bass_modification:
+       E_PLUS          {
+               $$ = ly_symbol2scm ("plus");
        }
-       | bass_figure   {
-               $$ = $1;
+       | E_EXCLAMATION {
+               $$ = ly_symbol2scm ("exclamation");
+       }
+       | '/'           {
+               $$ = ly_symbol2scm ("slash");
        }
-       | br_bass_figure ']' {
+       ;
+
+br_bass_figure:
+       bass_figure {
                $$ = $1;
-               unsmob_music ($1)->set_property ("bracket-stop", SCM_BOOL_T);
+       }
+       | '[' bass_figure {
+               $$ = $2;
+               unsmob_music ($$)->set_property ("bracket-start", SCM_BOOL_T);
        }
        ;
 
@@ -2260,7 +2311,7 @@ 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)
@@ -2270,7 +2321,7 @@ 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 (@$);
                n->set_spot (@$);
@@ -2283,7 +2334,7 @@ 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;
@@ -2314,27 +2365,27 @@ 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 ()));
 
                $$= velt;
        }
@@ -2350,7 +2401,7 @@ lyric_element:
                $$ = $1;
        }
        | LYRICS_STRING {
-               $$ = make_simple_markup ($1);
+               $$ = $1;
        }
        ;
 
@@ -2457,7 +2508,7 @@ number_factor:
 
 bare_number:
        UNSIGNED        {
-               $$ = scm_int2num ($1);
+               $$ = scm_from_int ($1);
        }
        | REAL          {
                $$ = $1;
@@ -2466,10 +2517,10 @@ bare_number:
                $$ = $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));
        }
        ;
 
@@ -2483,23 +2534,6 @@ bare_unsigned:
        }
        ;
 
-bare_int:
-       bare_number {
-               if (scm_integer_p ($1) == SCM_BOOL_T)
-               {
-                       int k = scm_to_int ($1);
-                       $$ = k;
-               } else
-               {
-                       THIS->parser_error (@1, _ ("need integer number arg"));
-                       $$ = 0;
-               }
-       }
-       | '-' bare_int {
-               $$ = -$2;
-       }
-       ;
-
 exclamations:
                { $$ = 0; }
        | exclamations '!'      { $$ ++; }
@@ -2622,7 +2656,7 @@ simple_markup:
        } '{' score_body '}' {
                Score * sc = $4;
                $$ = 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 {
@@ -2672,28 +2706,6 @@ Lily_parser::do_yyparse ()
 }
 
 
-/* FIXME: Should make this optional?  It will also complain at
-
-       [s4]
-
-which is entirely legitimate.
-
-Or we can scrap it.  Barchecks should detect wrong durations, and
-skipTypesetting speeds it up a lot.  */
-
-void
-Lily_parser::beam_check (SCM dur)
-{
-  Duration *d = unsmob_duration (dur);
-  if (unsmob_music (last_beam_start_) && d->duration_log () <= 2)
-    {
-      Music *m = unsmob_music (last_beam_start_);
-      m->origin ()->warning (_f ("suspect duration in beam: %s",
-      d->to_string ()));
-    }
-  last_beam_start_ = SCM_EOL;
-}
-
 
 
 
@@ -2709,6 +2721,9 @@ Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
        if (scm_is_string (sid)) {
                *destination = sid;
                return STRING_IDENTIFIER;
+       } else if (unsmob_book (sid)) {
+               *destination = unsmob_book (sid)->clone ()->self_scm ();
+               return BOOK_IDENTIFIER;
        } else if (scm_is_number (sid)) {
                *destination = sid;
                return NUMBER_IDENTIFIER;
@@ -2724,8 +2739,11 @@ Lily_lexer::try_special_identifiers (SCM *destination, SCM sid)
                *destination = mus->self_scm ();
                unsmob_music (*destination)->
                        set_property ("origin", make_input (last_input_));
-               return dynamic_cast<Event*> (mus)
-                       ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
+
+               bool is_event = scm_memq (ly_symbol2scm ("event"), mus->get_property ("types"))
+                       != SCM_BOOL_F;
+
+               return is_event ? EVENT_IDENTIFIER : MUSIC_IDENTIFIER;
        } else if (unsmob_duration (sid)) {
                *destination = unsmob_duration (sid)->smobbed_copy ();
                return DURATION_IDENTIFIER;
@@ -2735,7 +2753,7 @@ 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;
@@ -2753,7 +2771,7 @@ property_op_to_music (SCM op)
        SCM symbol = scm_cadr (op);
        SCM args = scm_cddr (op);
        SCM grob_val = SCM_UNDEFINED;
-       SCM grob_sym = SCM_UNDEFINED;
+       SCM grob_path = SCM_UNDEFINED;
        SCM val = SCM_UNDEFINED;
        
        if (tag == ly_symbol2scm ("assign"))
@@ -2763,16 +2781,16 @@ property_op_to_music (SCM op)
                }
        else if (tag == ly_symbol2scm ("unset"))
                m = MY_MAKE_MUSIC ("PropertyUnset");
-       else if (tag == ly_symbol2scm ("poppush")
-                || tag == ly_symbol2scm ("push"))
+       else if (tag == ly_symbol2scm ("push"))
                {
                m = MY_MAKE_MUSIC ("OverrideProperty");
-               grob_sym = scm_car (args);
-               grob_val = scm_cadr (args);
+               grob_val = scm_car (args);
+               grob_path = scm_cdr (args);
+               m->set_property ("pop-first", SCM_BOOL_T);
                }
        else if (tag == ly_symbol2scm ("pop")) {
                m = MY_MAKE_MUSIC ("RevertProperty");
-               grob_sym = scm_car (args);
+               grob_path = args;
                }
 
        m->set_property ("symbol", symbol);
@@ -2781,23 +2799,8 @@ property_op_to_music (SCM op)
                m->set_property ("value", val);
        if (grob_val != SCM_UNDEFINED)
                m->set_property ("grob-value", grob_val);
-
-       if (grob_sym != SCM_UNDEFINED)
-               {
-               bool itc = do_internal_type_checking_global;
-               /* UGH.
-               */
-               bool autobeam = ly_c_equal_p (symbol, ly_symbol2scm ("autoBeamSettings"));
-               if (autobeam)
-                       do_internal_type_checking_global = false;
-               m->set_property ("grob-property", grob_sym);
-               if (autobeam)
-                       do_internal_type_checking_global = itc;
-               }
-
-       if (tag == ly_symbol2scm ("poppush"))
-               m->set_property ("pop-first", SCM_BOOL_T);
-
+       if (grob_path != SCM_UNDEFINED)
+               m->set_property ("grob-property-path", grob_path);
 
        return m;
 }
@@ -2808,7 +2811,7 @@ 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));