]> git.donarmstrong.com Git - lilypond.git/blobdiff - lily/parser.yy
release: 1.3.146
[lilypond.git] / lily / parser.yy
index 84a0b042d82afc4df8aba23e0942d9cacfa40d6a..33a75d50c89654c2728ae87f3cafb1746b9fa6cb 100644 (file)
@@ -1,18 +1,18 @@
 %{ // -*-Fundamental-*-
 
 /*
-  parser.yy -- Bison/C++ parser for mudela
+  parser.yy -- Bison/C++ parser for lilypond
 
   source file of the GNU LilyPond music typesetter
 
-  (c)  1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+  (c)  1997--2001 Han-Wen Nienhuys <hanwen@cs.uu.nl>
            Jan Nieuwenhuizen <janneke@gnu.org>
 */
 
 #include <iostream.h>
+#include "translator-def.hh"
 #include "lily-guile.hh"
-#include "translation-property.hh"
-#include "lookup.hh"
+#include "change-iterator.hh"
 #include "misc.hh"
 #include "my-lily-lexer.hh"
 #include "paper-def.hh"
 #include "file-path.hh"
 #include "debug.hh"
 #include "dimensions.hh"
-#include "identifier.hh"
 #include "command-request.hh"
 #include "musical-request.hh"
 #include "my-lily-parser.hh"
 #include "context-specced-music.hh"
-#include "translator-group.hh"
 #include "score.hh"
 #include "music-list.hh"
-#include "change-translator.hh"
+#include "output-property-music-iterator.hh"
+#include "property-iterator.hh"
 #include "file-results.hh"
 #include "input.hh"
 #include "scope.hh"
 #include "transposed-music.hh"
 #include "time-scaled-music.hh"
 #include "repeated-music.hh"
-#include "mudela-version.hh"
+#include "lilypond-input-version.hh"
 #include "grace-music.hh"
-#include "auto-change-music.hh"
 #include "part-combine-music.hh"
-#include "output-property.hh"
+#include "scm-hash.hh"
+#include "auto-change-iterator.hh"
+#include "un-relativable-music.hh"
+#include "chord.hh"
 
 bool
 is_duration_b (int t)
 {
-  return t && t == 1 << intlog2(t);
+  return t && t == 1 << intlog2 (t);
+}
+
+
+void
+set_music_properties (Music *p, SCM a)
+{
+  for (SCM k = a; gh_pair_p (k); k = gh_cdr (k))
+       {
+       p->set_mus_property (gh_caar (k), gh_cdar (k));
+       }
 }
 
 
 // mmm JUNKME ?
-Mudela_version oldest_version ("1.3.59");
+Lilypond_version oldest_version ("1.3.59");
 
 void
-print_mudela_versions (ostream &os)
+print_lilypond_versions (ostream &os)
 {
   os << _f ("Oldest supported input version: %s", oldest_version.str ()) 
     << endl;
 }
 
 
-// needed for bison.simple's malloc() and free()
+// needed for bison.simple's malloc () and free ()
 #include <malloc.h>
 
 #ifndef NDEBUG
@@ -73,7 +84,8 @@ print_mudela_versions (ostream &os)
 
 #define YYPARSE_PARAM my_lily_parser_l
 #define YYLEX_PARAM my_lily_parser_l
-#define THIS ((My_lily_parser *) my_lily_parser_l)
+#define THIS\
+       ((My_lily_parser *) my_lily_parser_l)
 
 #define yyerror THIS->parser_error
 #define ARRAY_SIZE(a,s)   if (a.size () != s) THIS->parser_error (_f ("Expecting %d arguments", s))
@@ -82,21 +94,16 @@ print_mudela_versions (ostream &os)
 
 
 %union {
-    Array<Musical_pitch> *pitch_arr;
+
     Link_array<Request> *reqvec;
-    Duration *duration;
-    Identifier *id;
-    String * string;
+
+    String *string; // needed by the lexer as temporary scratch area.
     Music *music;
     Score *score;
     Scope *scope;
-    Interval *interval;
-    Musical_req* musreq;
+    Scheme_hash_table *scmhash;
     Music_output_def * outputdef;
-    Musical_pitch * pitch;
-    Midi_def* midi;
-    Moment *moment;
-    Real real;
+
     Request * request;
 
     /* We use SCMs to do strings, because it saves us the trouble of
@@ -106,7 +113,6 @@ of the parse stack onto the heap. */
     SCM scm;
 
     Tempo_req *tempo;
-    Translator_group* trans;
     int i;
 }
 %{
@@ -128,7 +134,10 @@ yylex (YYSTYPE *s,  void * v_l)
 
 /* tokens which are not keywords */
 %token AUTOCHANGE
-%token TEXTSCRIPT
+%token ALIAS
+%token APPLY
+%token ARPEGGIO
+%token DYNAMICSCRIPT
 %token ACCEPTS
 %token ALTERNATIVE
 %token BAR
@@ -139,13 +148,16 @@ yylex (YYSTYPE *s,  void * v_l)
 %token CLEF
 %token CM_T
 %token CONSISTS
+%token DURATION
 %token SEQUENTIAL
+%token ELEMENTDESCRIPTIONS
 %token SIMULTANEOUS
 %token CONSISTSEND
 %token DENIES
 %token DURATION
 %token EXTENDER
 %token FONT
+%token GLISSANDO
 %token GRACE
 %token HEADER
 %token HYPHEN
@@ -154,18 +166,19 @@ yylex (YYSTYPE *s,  void * v_l)
 %token KEY
 %token LYRICS
 %token MARK
-%token MEASURES
+%token MULTI_MEASURE_REST
 %token MIDI
 %token MM_T
-%token MUSICAL_PITCH
+%token PITCH
+%token DEFAULT
 %token NAME
-%token NOTENAMES
+%token PITCHNAMES
 %token NOTES
 %token PAPER
 %token PARTIAL
 %token PENALTY
 %token PROPERTY
-%token PUSHPROPERTY POPPROPERTY
+%token OVERRIDE SET REVERT 
 %token PT_T
 %token RELATIVE
 %token REMOVE
@@ -177,6 +190,7 @@ yylex (YYSTYPE *s,  void * v_l)
 %token SCRIPT
 %token SKIP
 %token SPANREQUEST
+%token STYLESHEET
 %token COMMANDSPANREQUEST
 %token TEMPO
 %token OUTPUTPROPERTY
@@ -185,36 +199,37 @@ yylex (YYSTYPE *s,  void * v_l)
 %token TRANSLATOR
 %token TRANSPOSE
 %token TYPE
+%token UNSET
 %token CONTEXT
 
 /* escaped */
-%token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER 
+%token E_CHAR E_EXCLAMATION E_SMALLER E_BIGGER E_OPEN E_CLOSE
 %token CHORD_BASS CHORD_COLON CHORD_MINUS CHORD_CARET 
 
-%type <i>      exclamations questions
+%type <i>      exclamations questions dots
 %token <i>     DIGIT
-%token <pitch> NOTENAME_PITCH
-%token <pitch> TONICNAME_PITCH
-%token <pitch> CHORDMODIFIER_PITCH
-%token <id>    DURATION_IDENTIFIER
+%token <scm>   NOTENAME_PITCH
+%token <scm>   TONICNAME_PITCH
+%token <scm>   CHORDMODIFIER_PITCH
+%token <scm>   DURATION_IDENTIFIER
 %token <id>    IDENTIFIER
 
 
-%token <id>    SCORE_IDENTIFIER
-%token <id>    MUSIC_OUTPUT_DEF_IDENTIFIER
+%token <scm>   SCORE_IDENTIFIER
+%token <scm>   MUSIC_OUTPUT_DEF_IDENTIFIER
 
 %token <scm>   NUMBER_IDENTIFIER
 %token <scm>   REQUEST_IDENTIFIER
 %token <scm>   MUSIC_IDENTIFIER TRANSLATOR_IDENTIFIER
 %token <scm>   STRING_IDENTIFIER SCM_IDENTIFIER 
-%token <scm>   DURATION RESTNAME
-%token <scm>   STRING 
+%token <scm>   RESTNAME
+%token <scm>   STRING   
 %token <scm>   SCM_T
 %token <i>     UNSIGNED
-%token <real>   REAL
+%token <scm>   REAL
 
 %type <outputdef> output_def
-%type <scope>  mudela_header mudela_header_body
+%type <scmhash>        lilypond_header lilypond_header_body
 %type <request>        open_request_parens close_request_parens open_request close_request
 %type <request> request_with_dir request_that_take_dir verbose_request
 %type <i>      sub_quotes sup_quotes
@@ -226,18 +241,18 @@ yylex (YYSTYPE *s,  void * v_l)
 
 %type <scm>    identifier_init 
 
-%type <duration> steno_duration optional_notemode_duration
-%type <duration> entered_notemode_duration explicit_duration
+%type <scm> steno_duration optional_notemode_duration multiplied_duration
+%type <scm>  explicit_duration
        
 %type <reqvec>  pre_requests post_requests
 %type <request> gen_text_def
-%type <pitch>   steno_musical_pitch musical_pitch absolute_musical_pitch
-%type <pitch>   steno_tonic_pitch
+%type <scm>   steno_pitch pitch absolute_pitch
+%type <scm>   explicit_pitch steno_tonic_pitch
 
-%type <pitch_arr>      chord_additions chord_subtractions chord_notes chord_step
+%type <scm>    chord_additions chord_subtractions chord_notes chord_step
 %type <music>  chord
-%type <pitch>  chord_note chord_inversion chord_bass
-%type <duration>       duration_length
+%type <scm>    chord_note chord_inversion chord_bass
+%type <scm>    duration_length
 
 %type <scm>  embedded_scm scalar
 %type <music>  Music Sequential_music Simultaneous_music Music_sequence
@@ -247,13 +262,14 @@ yylex (YYSTYPE *s,  void * v_l)
 %type <outputdef>  music_output_def_body
 %type <request> shorthand_command_req
 %type <request>        post_request 
-%type <request> command_req verbose_command_req
+%type <music> command_req verbose_command_req
 %type <request>        extender_req
 %type <request> hyphen_req
 %type <scm>    string bare_number number_expression
+
 %type <score>  score_block score_body
 
-%type <trans>  translator_spec_block translator_spec_body
+%type <scm>    translator_spec_block translator_spec_body
 %type <tempo>  tempo_request
 %type <scm> notenames_body notenames_block chordmodifiers_block
 %type <scm>    script_abbreviation
@@ -266,12 +282,16 @@ yylex (YYSTYPE *s,  void * v_l)
 
 %%
 
-mudela:        /* empty */
-       | mudela toplevel_expression {}
-       | mudela assignment  { }
-       | mudela error
-       | mudela INVALID        {
-               THIS->error_level_i_  =1;
+lilypond:      /* empty */
+       | lilypond toplevel_expression {}
+       | lilypond assignment  { }
+       | lilypond error {
+               THIS->error_level_i_  = 1;
+               //THIS->parser_error (_ ("ly invalid"));
+       }
+       | lilypond INVALID      {
+               THIS->error_level_i_  = 1;
+               //THIS->parser_error (_ ("ly invalid"));
        }
        ;
 
@@ -282,20 +302,20 @@ toplevel_expression:
        | chordmodifiers_block                  {
                THIS->lexer_p_->chordmodifier_tab_  = $1;
        }
-       | mudela_header {
-               delete header_global_p;
-               header_global_p = $1;
+       | lilypond_header {
+               if (global_header_p)
+                       scm_unprotect_object (global_header_p->self_scm ());
+               global_header_p = $1;
        }
        | score_block {
                score_global_array.push ($1);
+               
        }
        | output_def {
-               Identifier * id = new
-                       Music_output_def_identifier ($1, MUSIC_OUTPUT_DEF_IDENTIFIER);
                if (dynamic_cast<Paper_def*> ($1))
-                       THIS->lexer_p_->set_identifier ("$defaultpaper", id->self_scm ());
+                       THIS->lexer_p_->set_identifier ("$defaultpaper", $1->self_scm ());
                else if (dynamic_cast<Midi_def*> ($1))
-                       THIS->lexer_p_->set_identifier ("$defaultmidi", id->self_scm ());
+                       THIS->lexer_p_->set_identifier ("$defaultmidi", $1->self_scm ());
        }
        | embedded_scm {
                // junk value
@@ -314,7 +334,7 @@ chordmodifiers_block:
 
 
 notenames_block:
-       NOTENAMES notenames_body   {  $$ = $2; }
+       PITCHNAMES notenames_body   {  $$ = $2; }
        ;
 
 
@@ -324,31 +344,34 @@ notenames_body:
          int i = scm_ilength ($1);
 
          SCM tab = scm_make_vector (gh_int2scm (i), SCM_EOL);
-         for (SCM s = $1; s != SCM_EOL; s = gh_cdr (s)) {
+         for (SCM s = $1; gh_pair_p (s); s = gh_cdr (s)) {
                SCM pt = gh_cdar (s);
-               if (scm_ilength (pt) != 3)
-                       THIS->parser_error ("Need three args");
-               scm_hashq_set_x (tab, gh_caar(s), pt);
+               if (!unsmob_pitch (pt))
+                       THIS->parser_error ("Need pitch object.");
+               else
+                       scm_hashq_set_x (tab, gh_caar (s), pt);
          }
 
          $$ = tab;
        }
        ;
 
-mudela_header_body:
+lilypond_header_body:
        {
-               $$ = new Scope;
-               THIS->lexer_p_-> scope_l_arr_.push ($$);
+               $$ = new Scheme_hash_table;
+               
+               Scope *sc = new Scope ($$);
+               THIS->lexer_p_-> scope_l_arr_.push (sc);
        }
-       | mudela_header_body assignment semicolon { 
+       | lilypond_header_body assignment  { 
 
        }
        ;
 
-mudela_header:
-       HEADER '{' mudela_header_body '}'       {
+lilypond_header:
+       HEADER '{' lilypond_header_body '}'     {
                $$ = $3;
-               THIS->lexer_p_-> scope_l_arr_.pop ();           
+               delete THIS->lexer_p_-> scope_l_arr_.pop ();
        }
        ;
 
@@ -365,16 +388,15 @@ assignment:
 
 /*
  TODO: devise standard for protection in parser.
-               if (SCM_NIMP($4))
-                       scm_unprotect_object ($4);
 
   The parser stack lives on the C-stack, which means that
 all objects can be unprotected as soon as they're here.
 
 */
-               Identifier * id =unsmob_identifier ($4);
-               Input spot = THIS->pop_spot ();
-               if (id) id->set_spot (spot);
+       /*
+               Should find generic way of associating input with objects.
+       */
+               THIS->pop_spot ();
        }
        ;
 
@@ -382,22 +404,26 @@ all objects can be unprotected as soon as they're here.
 
 identifier_init:
        score_block {
-               $$ = (new Score_identifier ($1, SCORE_IDENTIFIER))->self_scm();
+               $$ = $1->self_scm ();
+               scm_unprotect_object ($$);
        }
        | output_def {
-               $$ = (new Music_output_def_identifier ($1, MUSIC_OUTPUT_DEF_IDENTIFIER))->self_scm();
+               $$ = $1->self_scm ();
+               scm_unprotect_object ($$);
        }
        | translator_spec_block {
-               $$ = $1->self_scm ();
+               $$ = $1;
        }
        | Music  {
                $$ = $1->self_scm ();
+               scm_unprotect_object ($$);
        }
        | post_request {
                $$ = $1->self_scm ();
+               scm_unprotect_object ($$);
        }
        | explicit_duration {
-               $$ = (new Duration_identifier ($1, DURATION_IDENTIFIER))->self_scm ();
+               $$ = $1;
        }
        | number_expression {
                $$ = $1;
@@ -419,63 +445,53 @@ translator_spec_block:
 
 translator_spec_body:
        TRANSLATOR_IDENTIFIER   {
-               SCM trs = $1;
-               Translator*tr = unsmob_translator (trs);
-               $$ = dynamic_cast<Translator_group*> (tr->clone ());
-               $$-> set_spot (THIS->here_input ());
+               $$ = unsmob_translator_def ($1)->clone_scm ();
+               unsmob_translator_def ($$)-> set_spot (THIS->here_input ());
        }
-       | TYPE STRING semicolon {
-               Translator* t = get_translator_l (ly_scm2string ($2));
-               Translator_group * tg = dynamic_cast<Translator_group*> (t);
-
-               if (!tg)
-                       THIS->parser_error (_("Need a translator group for a context"));
-               
-               tg = dynamic_cast<Translator_group*> (t->clone ());
-               tg->set_spot (THIS->here_input ());
-               $$ = tg;
+       | TYPE STRING   {
+               $$ = Translator_def::make_scm ();
+               Translator_def*td =  unsmob_translator_def ($$);
+               td->translator_group_type_ = $2;
+               td->set_spot (THIS->here_input ());
        }
        | translator_spec_body STRING '=' embedded_scm                  {
-               Translator_group* tg = $$;
-               tg->set_property (ly_scm2string ($2), $4);
-       }
-       | translator_spec_body STRING '=' identifier_init semicolon     { 
-               SCM v = gh_int2scm (0);
-               if (gh_string_p ($4) || gh_number_p ($4) || gh_boolean_p ($4))
-                       v = $4;
-               else 
-                       THIS->parser_error (_("Wrong type for property value"));
-
-               /* ugh*/
-               Translator_group* tg = dynamic_cast<Translator_group*> ($$);
-               
-               tg->set_property (ly_scm2string ($2), v);
+               unsmob_translator_def ($$)->add_property_assign ($2, $4);
+       }
+       | translator_spec_body STRING OVERRIDE embedded_scm '=' embedded_scm {
+               unsmob_translator_def ($$)
+                       ->add_push_property (scm_string_to_symbol ($2), $4, $6);
        }
-       | translator_spec_body PUSHPROPERTY
-                               embedded_scm embedded_scm embedded_scm {
-               Translator_group_initializer::add_push_property ($$, $3, $4, $5);
+       | translator_spec_body STRING REVERT embedded_scm  {
+         unsmob_translator_def ($$)->add_pop_property (
+               scm_string_to_symbol ($2), $4);
        }
-       | translator_spec_body POPPROPERTY
-               embedded_scm embedded_scm  {
-               Translator_group_initializer::add_pop_property ($$, $3, $4);
+       | translator_spec_body NAME STRING  {
+               unsmob_translator_def ($$)->type_name_ = $3;
        }
-       | translator_spec_body NAME STRING semicolon {
-               $$->type_str_ = ly_scm2string ($3);
+       | translator_spec_body CONSISTS STRING  {
+               unsmob_translator_def ($$)->add_element ($3);
        }
-       | translator_spec_body CONSISTS STRING semicolon {
-               Translator_group_initializer::add_element ($$, $3);
+       | translator_spec_body ALIAS STRING  {
+               Translator_def*td = unsmob_translator_def ($$);
+               td->type_aliases_ = gh_cons ($3, td->type_aliases_);
+       }
+       | translator_spec_body ELEMENTDESCRIPTIONS embedded_scm {
+               for (SCM p = $3; gh_pair_p (p); p = gh_cdr (p))
+                       unsmob_translator_def ($$)
+                       ->add_property_assign (scm_symbol_to_string (gh_caar (p)), gh_cdar (p));
+
        }
-       | translator_spec_body CONSISTSEND STRING semicolon {
-               Translator_group_initializer::add_last_element ($$, $3);
+       | translator_spec_body CONSISTSEND STRING  {
+               unsmob_translator_def ($$)->add_last_element ( $3);
        }
-       | translator_spec_body ACCEPTS STRING semicolon {
-               Translator_group_initializer::set_acceptor ($$, $3,true);
+       | translator_spec_body ACCEPTS STRING  {
+               unsmob_translator_def ($$)->set_acceptor ($3,true);
        }
-       | translator_spec_body DENIES STRING semicolon {
-               Translator_group_initializer::set_acceptor ($$, $3,false);
+       | translator_spec_body DENIES STRING  {
+               unsmob_translator_def ($$)->set_acceptor ($3,false);
        }
-       | translator_spec_body REMOVE STRING semicolon {
-               Translator_group_initializer::remove_element ($$, $3);
+       | translator_spec_body REMOVE STRING  {
+               unsmob_translator_def ($$)->remove_element ($3);
        }
        ;
 
@@ -484,14 +500,16 @@ translator_spec_body:
 */
 score_block:
        SCORE { 
+               THIS->remember_spot ();
        }
        /*cont*/ '{' score_body '}'     {
+               THIS->pop_spot ();
                $$ = $4;
                if (!$$->def_p_arr_.size ())
                {
-                 Identifier *id =
-                       unsmob_identifier (THIS->lexer_p_->lookup_identifier ("$defaultpaper"));
-                 $$->add_output (id ? id->access_content_Music_output_def (true) : new Paper_def );
+                 Music_output_def *id =
+                       unsmob_music_output_def (THIS->lexer_p_->lookup_identifier ("$defaultpaper"));
+                 $$->add_output (id ? id->clone () :  new Paper_def );
                }
        }
        ;
@@ -499,16 +517,18 @@ score_block:
 score_body:
        Music   {
                $$ = new Score;
-
+       
                $$->set_spot (THIS->here_input ());
                SCM m = $1->self_scm ();
-//             scm_unprotect_object (m);
+               scm_unprotect_object (m);
                $$->music_ = m;
        }
        | SCORE_IDENTIFIER {
-               $$ = $1->access_content_Score (true);
+               $$ = new Score (*unsmob_score ($1));
+               $$->set_spot (THIS->here_input ());
        }
-       | score_body mudela_header      {
+       | score_body lilypond_header    {
+               scm_unprotect_object ($2->self_scm ()); 
                $$->header_p_ = $2;
        }
        | score_body output_def {
@@ -526,18 +546,18 @@ score_body:
 output_def:
        music_output_def_body '}' {
                $$ = $1;
-               THIS-> lexer_p_-> scope_l_arr_.pop();
+               THIS-> lexer_p_-> scope_l_arr_.pop ();
        }
        ;
 
 music_output_def_body:
        MIDI '{'    {
-        Identifier *id = unsmob_identifier (THIS->lexer_p_->lookup_identifier ("$defaultmidi"));
+          Music_output_def *id = unsmob_music_output_def (THIS->lexer_p_->lookup_identifier ("$defaultmidi"));
 
                
         Midi_def* p =0;
        if (id)
-               p = dynamic_cast<Midi_def*> (id->access_content_Music_output_def (true));
+               p = dynamic_cast<Midi_def*> (id->clone ());
        else
                p = new Midi_def;
 
@@ -545,43 +565,45 @@ music_output_def_body:
         THIS->lexer_p_->scope_l_arr_.push (p->scope_p_);
        }
        | PAPER '{'     {
-                 Identifier *id = unsmob_identifier (THIS->lexer_p_->lookup_identifier ("$defaultpaper"));
+               Music_output_def *id = unsmob_music_output_def (THIS->lexer_p_->lookup_identifier ("$defaultpaper"));
                  Paper_def *p = 0;
                if (id)
-                       p = dynamic_cast<Paper_def*> (id->access_content_Music_output_def (true));
+                       p = dynamic_cast<Paper_def*> (id->clone ());
                else
                        p = new Paper_def;
                THIS-> lexer_p_-> scope_l_arr_.push (p->scope_p_);
                $$ = p;
        }
        | PAPER '{' MUSIC_OUTPUT_DEF_IDENTIFIER         {
-               Music_output_def *p = $3->access_content_Music_output_def (true);
+               Music_output_def *p = unsmob_music_output_def ($3);
+               p = p->clone ();
                THIS->lexer_p_->scope_l_arr_.push (p->scope_p_);
                $$ = p;
        }
        | MIDI '{' MUSIC_OUTPUT_DEF_IDENTIFIER  {
-               Music_output_def *p = $3->access_content_Music_output_def (true);
+               Music_output_def *p = unsmob_music_output_def ($3);
+               p = p->clone ();
+
                THIS->lexer_p_->scope_l_arr_.push (p->scope_p_);
                $$ = p;
        }
-       | music_output_def_body assignment semicolon {
+       | music_output_def_body assignment  {
 
        }
        | music_output_def_body translator_spec_block   {
-               $$-> assign_translator ($2);
+               $$->assign_translator ($2);
+       }
+       | music_output_def_body STYLESHEET embedded_scm {
+               dynamic_cast<Paper_def*> ($$)-> style_sheet_ = $3;
        }
-       | music_output_def_body tempo_request semicolon {
+       | music_output_def_body tempo_request  {
                /*
                        junk this ? there already is tempo stuff in
                        music.
                */
-               dynamic_cast<Midi_def*> ($$)->set_tempo ($2->dur_.length_mom (), $2->metronome_i_);
-       }
-       | music_output_def_body bare_int '=' FONT STRING                { // ugh, what a syntax
-               SCM sl = Lookup::make_lookup();
-               Lookup * l =unsmob_lookup (sl);
-               l->font_name_ = ly_scm2string ($5);
-               dynamic_cast<Paper_def*> ($$)->set_lookup ($2, sl);
+               int m = gh_scm2int ( $2->get_mus_property ("metronome-count"));
+               Duration *d = unsmob_duration ($2->get_mus_property ("duration"));
+               dynamic_cast<Midi_def*> ($$)->set_tempo (d->length_mom (), m);
        }
        | music_output_def_body error {
 
@@ -591,9 +613,8 @@ music_output_def_body:
 tempo_request:
        TEMPO steno_duration '=' bare_unsigned  {
                $$ = new Tempo_req;
-               $$->dur_ = *$2;
-               delete $2;
-               $$-> metronome_i_ = $4;
+               $$->set_mus_property ("duration", $2);
+               $$->set_mus_property ("metronome-count", gh_int2scm ( $4));
        }
        ;
 
@@ -603,9 +624,7 @@ Music_list: /* empty */ {
        | Music_list Music {
                SCM s = $$;
                SCM c = gh_cons ($2->self_scm (), SCM_EOL);
-//             scm_unprotect_object ($2->self_scm ()); /* UGH */
-
-       
+               scm_unprotect_object ($2->self_scm ()); /* UGH */
                if (gh_pair_p (gh_cdr (s)))
                        gh_set_cdr_x (gh_cdr (s), c); /* append */
                else
@@ -636,41 +655,65 @@ Alternative_music:
 
 
 Repeated_music:
-       REPEAT STRING bare_unsigned Music Alternative_music
+       REPEAT string bare_unsigned Music Alternative_music
        {
-               Music_sequence* m = dynamic_cast <Music_sequence*> ($5);
-               if (m && $3 < m->length_i ())
+               Music_sequence* alts = dynamic_cast <Music_sequence*> ($5);
+               if (alts && $3 < alts->length_i ())
                        $5->origin ()->warning (_ ("More alternatives than repeats.  Junking excess alternatives."));
+               Music *beg = $4;
+               int times = $3;
+
+               Repeated_music * r = new Repeated_music (SCM_EOL);
+
+               if (beg)
+                       {
+                       r-> set_mus_property ("body", beg->self_scm ());
+                       scm_unprotect_object (beg->self_scm ());
+                       }
+               r->set_mus_property ("repeat-count", gh_int2scm (times >? 1));
+
+               if (alts)
+                       {
+                       alts->truncate (times);
+                       r-> set_mus_property ("alternatives", alts->self_scm ());
+                       scm_unprotect_object (alts->self_scm ());  
+                       }
+               SCM func = scm_eval2 (ly_symbol2scm ("repeat-name-to-ctor"), SCM_EOL);
+               SCM result = gh_call1 (func, $2);
+
+               set_music_properties (r, result);
 
-               Repeated_music * r = new Repeated_music ($4, $3 >? 1, m);
-               $$ = r;
-               r->type_ = ly_scm2string ($2);
-               r->fold_b_ = (r->type_ == "fold");
-               r->volta_fold_b_ =  (r->type_ == "volta");
                r->set_spot (*$4->origin ());
+               $$ = r;
        }
        ;
 
 Music_sequence: '{' Music_list '}'     {
-               $$ = new Music_sequence (gh_car ($2));
+               $$ = new Music_sequence (SCM_EOL);
+               $$->set_mus_property ("elements", gh_car ($2));
        }
        ;
 
 Sequential_music:
        SEQUENTIAL '{' Music_list '}'           {
-               $$ = new Sequential_music (gh_car ($3));
+               $$ = new Sequential_music (SCM_EOL);
+               $$->set_mus_property ("elements", gh_car ($3));
        }
        | '{' Music_list '}'            {
-               $$ = new Sequential_music (gh_car ($2));
+               $$ = new Sequential_music (SCM_EOL);
+               $$->set_mus_property ("elements", gh_car ($2));
        }
        ;
 
 Simultaneous_music:
        SIMULTANEOUS '{' Music_list '}'{
-               $$ = new Simultaneous_music (gh_car ($3));
+               $$ = new Simultaneous_music (SCM_EOL);
+               $$->set_mus_property ("elements", gh_car ($3));
+
        }
        | '<' Music_list '>'    {
-               $$ = new Simultaneous_music (gh_car ($2));
+               $$ = new Simultaneous_music (SCM_EOL);
+               $$->set_mus_property ("elements", gh_car ($2));
        }
        ;
 
@@ -680,65 +723,66 @@ Simple_music:
                SCM pred = $2;
                if (!gh_symbol_p ($3))
                {
-                       THIS->parser_error (_("Second argument must be a symbol")); 
+                       THIS->parser_error (_ ("Second argument must be a symbol")); 
                }
                /*hould check # args */
                if (!gh_procedure_p (pred))
                {
-                       THIS->parser_error (_("First argument must be a procedure taking 1 argument"));
+                       THIS->parser_error (_ ("First argument must be a procedure taking 1 argument"));
                }
-       
-               $$ = new Output_property (pred,$3, $5);
-       }
-       | MUSIC_IDENTIFIER { $$ = unsmob_music ($1)->clone (); }
-       | property_def
-       | PUSHPROPERTY embedded_scm embedded_scm embedded_scm {
-               $$ = new Push_translation_property;
-               $$->set_mus_property ("symbols", $2);
-               $$->set_mus_property ("element-property", $3);
-               $$->set_mus_property ("element-value", $4);
+
+               Music *m = new Music (SCM_EOL);
+               m->set_mus_property ("predicate", pred);
+               m->set_mus_property ("symbol", $3);
+               m->set_mus_property ("value",  $5);
+               m->set_mus_property ("iterator-ctor",
+               Output_property_music_iterator::constructor_cxx_function);
+
+               $$ = m;
        }
-       | POPPROPERTY  embedded_scm embedded_scm {
-               $$ = new Pop_translation_property;
-               $$->set_mus_property ("symbols", $2);
-               $$->set_mus_property ("element-property", $3);
+       | MUSIC_IDENTIFIER {
+               $$ = unsmob_music ($1)->clone ();
        }
+       | property_def
        | translator_change
-       | Simple_music '*' bare_unsigned '/' bare_unsigned      {
-               $$ = $1;
-               $$->compress (Moment($3, $5 ));
-       }
-       | Simple_music '*' bare_unsigned                 {
-               $$ = $1;
-               $$->compress (Moment ($3, 1));
-       }
        ;
 
 
 Composite_music:
        CONTEXT STRING Music    {
-               Context_specced_music *csm =  new Context_specced_music ($3);
-
-               csm->translator_type_str_ = ly_scm2string ($2);
-               csm->translator_id_str_ = "";
+               Context_specced_music *csm =  new Context_specced_music (SCM_EOL);
+               csm->set_mus_property ("element", $3->self_scm ());
+               scm_unprotect_object ($3->self_scm ());
 
+               csm->set_mus_property ("context-type",$2);
+               csm->set_mus_property ("context-id", ly_str02scm (""));
 
                $$ = csm;
        }
        | AUTOCHANGE STRING Music       {
-               Auto_change_music * chm = new Auto_change_music (ly_scm2string ($2), $3);
+               Music * chm = new Music_wrapper (SCM_EOL);
+               chm->set_mus_property ("element", $3->self_scm ());
+               chm->set_mus_property ("iterator-ctor", Auto_change_iterator::constructor_cxx_function);
+
+               scm_unprotect_object ($3->self_scm ());
+               chm->set_mus_property ("what", $2); 
 
                $$ = chm;
                chm->set_spot (*$3->origin ());
        }
        | GRACE Music {
-               $$ = new Grace_music ($2);
+               $$ = new Grace_music (SCM_EOL);
+               $$->set_mus_property ("element", $2->self_scm ());
+               scm_unprotect_object ($2->self_scm ());
+
        }
-       | CONTEXT STRING '=' STRING Music {
-               Context_specced_music *csm =  new Context_specced_music ($5);
+       | CONTEXT string '=' string Music {
+               Context_specced_music *csm =  new Context_specced_music (SCM_EOL);
+               csm->set_mus_property ("element", $5->self_scm ());
+               scm_unprotect_object ($5->self_scm ());
 
-               csm->translator_type_str_ = ly_scm2string ($2);
-               csm->translator_id_str_ = ly_scm2string ($4);
+               csm->set_mus_property ("context-type", $2);
+               csm->set_mus_property ("context-id", $4);
 
                $$ = csm;
        }
@@ -749,19 +793,49 @@ Composite_music:
                bare_unsigned '/' bare_unsigned Music   
 
        {
-               $$ = new Time_scaled_music ($3, $5, $6);
+               int n = $3; int d = $5;
+               Music *mp = $6;
+               $$ = new Time_scaled_music (SCM_EOL);
                $$->set_spot (THIS->pop_spot ());
+
+
+               $$->set_mus_property ("element", mp->self_scm ());
+               scm_unprotect_object (mp->self_scm ());
+               $$->set_mus_property ("numerator", gh_int2scm (n));
+               $$->set_mus_property ("denominator", gh_int2scm (d));
+               $$->compress (Moment (n,d));
+
        }
        | Repeated_music                { $$ = $1; }
        | Simultaneous_music            { $$ = $1; }
        | Sequential_music              { $$ = $1; }
-       | TRANSPOSE musical_pitch Music {
-               $$ = new Transposed_music ($3, *$2);
-               delete $2; // ugh
+       | TRANSPOSE pitch Music {
+               $$ = new Transposed_music (SCM_EOL);
+               Music *p = $3;
+               Pitch pit = *unsmob_pitch ($2);
+
+               p->transpose (pit);
+               $$->set_mus_property ("element", p->self_scm ());
+               scm_unprotect_object (p->self_scm ());
        }
        | TRANSPOSE steno_tonic_pitch Music {
-               $$ = new Transposed_music ($3, *$2);
-               delete $2; // ugh
+               $$ = new Transposed_music (SCM_EOL);
+               Music *p = $3;
+               Pitch pit = *unsmob_pitch ($2);
+
+               p->transpose (pit);
+               $$->set_mus_property ("element", p->self_scm ());
+               scm_unprotect_object (p->self_scm ());
+       
+       }
+       | APPLY embedded_scm Music  {
+               SCM ret = gh_call1 ($2, $3->self_scm ());
+               Music *m = unsmob_music (ret);
+               if (!m) {
+                       THIS->parser_error ("\\apply must return a Music");
+                       m = new Music (SCM_EOL);
+                       }
+               $$ = m;
        }
        | NOTES
                { THIS->lexer_p_->push_note_state (); }
@@ -773,7 +847,10 @@ Composite_music:
                { THIS->lexer_p_->push_chord_state (); }
        Music
                {
-                 $$ = $3;
+                 Music * chm = new Un_relativable_music ;
+                 chm->set_mus_property ("element", $3->self_scm ());
+                 $$ = chm;
+
                  THIS->lexer_p_->pop_state ();
        }
        | LYRICS
@@ -789,31 +866,53 @@ Composite_music:
        ;
 
 relative_music:
-       RELATIVE absolute_musical_pitch Music {
-               $$ = new Relative_octave_music ($3, *$2);
-               delete $2; // ugh
+       RELATIVE absolute_pitch Music {
+               Music * p = $3;
+               Pitch pit = *unsmob_pitch ($2);
+               $$ = new Relative_octave_music (SCM_EOL);
+
+               $$->set_mus_property ("element", p->self_scm ());
+               scm_unprotect_object (p->self_scm ());
+
+               $$->set_mus_property ("last-pitch", p->to_relative_octave (pit).smobbed_copy ());
+
        }
        ;
 
 re_rhythmed_music:
        ADDLYRICS Music Music {
-               Lyric_combine_music * l = new Lyric_combine_music ($2, $3);
-               $$ = l;
+         Lyric_combine_music * l = new Lyric_combine_music (SCM_EOL);
+         l->set_mus_property ("music", $2->self_scm ());
+         l->set_mus_property ("lyrics", $3->self_scm ());
+         scm_unprotect_object ($3->self_scm ());
+         scm_unprotect_object ($2->self_scm ());
+         $$ = l;
        }
        ;
 
 part_combined_music:
        PARTCOMBINE STRING Music Music {
-               Part_combine_music * p = new Part_combine_music (ly_scm2string ($2), $3, $4);
+               Part_combine_music * p = new Part_combine_music (SCM_EOL);
+
+               p->set_mus_property ("what", $2);
+               p->set_mus_property ("one", $3->self_scm ());
+               p->set_mus_property ("two", $4->self_scm ());  
+
+               scm_unprotect_object ($3->self_scm ());
+               scm_unprotect_object ($4->self_scm ());  
+
+
                $$ = p;
        }
        ;
 
 translator_change:
        TRANSLATOR STRING '=' STRING  {
-               Change_translator * t = new Change_translator;
-               t-> change_to_type_str_ = ly_scm2string ($2);
-               t-> change_to_id_str_ = ly_scm2string ($4);
+               Music * t = new Music (SCM_EOL);
+               t->set_mus_property ("iterator-ctor",
+                       Change_iterator::constructor_cxx_function);
+               t-> set_mus_property ("change-to-type", $2);
+               t-> set_mus_property ("change-to-id", $4);
 
                $$ = t;
                $$->set_spot (THIS->here_input ());
@@ -822,16 +921,86 @@ translator_change:
 
 property_def:
        PROPERTY STRING '.' STRING '='  scalar {
-               Translation_property *t = new Translation_property;
+               Music *t = new Music (SCM_EOL);
 
+               t->set_mus_property ("iterator-ctor",
+                       Property_iterator::constructor_cxx_function);
                t->set_mus_property ("symbol", scm_string_to_symbol ($4));
                t->set_mus_property ("value", $6);
 
-               Context_specced_music *csm = new Context_specced_music (t);
+               Context_specced_music *csm = new Context_specced_music (SCM_EOL);
+
+               csm->set_mus_property ("element", t->self_scm ());
+               scm_unprotect_object (t->self_scm ());
+
+               $$ = csm;
+               $$->set_spot (THIS->here_input ());
+
+               csm-> set_mus_property ("context-type", $2);
+       }
+       | PROPERTY STRING '.' STRING UNSET {
+               Music *t = new Music (SCM_EOL);
+
+               t->set_mus_property ("iterator-ctor",
+                       Property_unset_iterator::constructor_cxx_function);
+               t->set_mus_property ("symbol", scm_string_to_symbol ($4));
+
+               Context_specced_music *csm = new Context_specced_music (SCM_EOL);
+               csm->set_mus_property ("element", t->self_scm ());
+               scm_unprotect_object (t->self_scm ());
+
+               $$ = csm;
+               $$->set_spot (THIS->here_input ());
+
+               csm-> set_mus_property ("context-type", $2);
+       }
+       | PROPERTY STRING '.' STRING SET embedded_scm '=' embedded_scm {
+               Music *t = new Music (SCM_EOL);
+               t->set_mus_property ("iterator-ctor",
+                       Push_property_iterator::constructor_cxx_function);
+               t->set_mus_property ("symbols", scm_string_to_symbol ($4));
+               t->set_mus_property ("pop-first", SCM_BOOL_T);
+               t->set_mus_property ("grob-property", $6);
+               t->set_mus_property ("grob-value", $8);
+               Context_specced_music *csm = new Context_specced_music (SCM_EOL);
+               csm->set_mus_property ("element", t->self_scm ());
+               scm_unprotect_object (t->self_scm ());
+               $$ = csm;
+               $$->set_spot (THIS->here_input ());
+
+               csm-> set_mus_property ("context-type", $2);
+       }
+       | PROPERTY STRING '.' STRING OVERRIDE embedded_scm '=' embedded_scm {
+               Music *t = new Music (SCM_EOL);
+               t->set_mus_property ("iterator-ctor",
+                       Push_property_iterator::constructor_cxx_function);
+               t->set_mus_property ("symbols", scm_string_to_symbol ($4));
+               t->set_mus_property ("grob-property", $6);
+               t->set_mus_property ("grob-value", $8);
+               Context_specced_music *csm = new Context_specced_music (SCM_EOL);
+               csm->set_mus_property ("element", t->self_scm ());
+               scm_unprotect_object (t->self_scm ());
+
+               $$ = csm;
+               $$->set_spot (THIS->here_input ());
+
+               csm-> set_mus_property ("context-type", $2);
+       }
+       | PROPERTY STRING '.' STRING REVERT embedded_scm {
+               Music *t = new Music (SCM_EOL);
+               t->set_mus_property ("iterator-ctor",
+                       Pop_property_iterator::constructor_cxx_function);
+               t->set_mus_property ("symbols", scm_string_to_symbol ($4));
+               t->set_mus_property ("grob-property", $6);
+
+               Context_specced_music *csm = new Context_specced_music (SCM_EOL);
+               csm->set_mus_property ("element", t->self_scm ());
+               scm_unprotect_object (t->self_scm ());
+
                $$ = csm;
                $$->set_spot (THIS->here_input ());
 
-               csm-> translator_type_str_ = ly_scm2string ($2);
+               csm-> set_mus_property ("context-type", $2);
        }
        ;
 
@@ -844,12 +1013,12 @@ scalar:
 
 request_chord:
        pre_requests simple_element post_requests       {
-               Music_sequence *l = dynamic_cast<Music_sequence*>($2);
+               Music_sequence *l = dynamic_cast<Music_sequence*> ($2);
                if (l) {
-                       for (int i=0; i < $1->size(); i++)
-                               l->append_music ($1->elem(i));
-                       for (int i=0; i < $3->size(); i++)
-                               l->append_music ($3->elem(i));
+                       for (int i=0; i < $1->size (); i++)
+                               l->append_music ($1->elem (i));
+                       for (int i=0; i < $3->size (); i++)
+                               l->append_music ($3->elem (i));
                        }
                else
                        programming_error ("Need Sequence to add music to");
@@ -861,25 +1030,92 @@ request_chord:
 
 command_element:
        command_req {
-               $$ = new Request_chord (gh_cons ($1->self_scm (), SCM_EOL));
+               $$ = new Request_chord (SCM_EOL);
+               $$->set_mus_property ("elements", gh_cons ($1->self_scm (), SCM_EOL));
                $$-> set_spot (THIS->here_input ());
                $1-> set_spot (THIS->here_input ());
        }
-       | PARTIAL duration_length ';'   {
-               Translation_property * p = new Translation_property;
+       | BAR STRING                    {
+               Music *t = new Music (SCM_EOL);
+
+               t->set_mus_property ("iterator-ctor",
+                       Property_iterator::constructor_cxx_function);
+               t->set_mus_property ("symbol", ly_symbol2scm ("whichBar"));
+               t->set_mus_property ("value", $2);
+
+               Context_specced_music *csm = new Context_specced_music (SCM_EOL);
+               csm->set_mus_property ("element", t->self_scm ());
+               scm_unprotect_object (t->self_scm ());
+
+               $$ = csm;
+               $$->set_spot (THIS->here_input ());
+
+               csm->set_mus_property ("context-type", ly_str02scm ("Score"));
+       }
+       | PARTIAL duration_length       {
+               Music * p = new Music (SCM_EOL);
                p->set_mus_property ("symbol", ly_symbol2scm ( "measurePosition"));
-               Moment m = - $2->length_mom ();
-               p->set_mus_property ("value", m.make_scm());
-               delete $2; // ugh
-               Context_specced_music * sp = new Context_specced_music (p);
+               p->set_mus_property ("iterator-ctor",
+                       Property_iterator::constructor_cxx_function);
+
+               Moment m = - unsmob_duration ($2)->length_mom ();
+               p->set_mus_property ("value", m.smobbed_copy ());
+
+               Context_specced_music * sp = new Context_specced_music (SCM_EOL);
+               sp->set_mus_property ("element", p->self_scm ());
+               scm_unprotect_object (p->self_scm ());
+
+               $$ =sp ;
+               sp-> set_mus_property ("context-type", ly_str02scm ( "Score"));
+       }
+       | CLEF STRING  {
+               SCM func = scm_eval2 (ly_symbol2scm ("clef-name-to-properties"), SCM_EOL);
+               SCM result = gh_call1 (func, $2);
+
+               SCM l = SCM_EOL;
+               for (SCM s = result ; gh_pair_p (s); s = gh_cdr (s)) {
+                       Music * p = new Music (SCM_EOL);
+                       set_music_properties (p, gh_car (s));
+                       l = gh_cons (p->self_scm (), l);
+                       scm_unprotect_object (p->self_scm ());
+               }
+               Sequential_music * seq = new Sequential_music (SCM_EOL);
+               seq->set_mus_property ("elements", l);
+
+               Context_specced_music * sp = new Context_specced_music (SCM_EOL);
+               sp->set_mus_property ("element", seq->self_scm ());
+               scm_unprotect_object (seq->self_scm ());
+
                $$ =sp ;
-               sp-> translator_type_str_ = "Score";
+               sp-> set_mus_property ("context-type", ly_str02scm ("Staff"));
+       }
+       | TIME_T bare_unsigned '/' bare_unsigned  {
+               Music * p = new Music (SCM_EOL);
+               p->set_mus_property ("symbol",
+                       ly_symbol2scm ( "timeSignatureFraction"));
+               p->set_mus_property ("iterator-ctor",
+                       Property_iterator::constructor_cxx_function);
+
+               p->set_mus_property ("value", gh_cons (gh_int2scm ($2),
+                                                       gh_int2scm ($4)));
+
+               Context_specced_music * sp = new Context_specced_music (SCM_EOL);
+               sp->set_mus_property ("element", p->self_scm ());
+               scm_unprotect_object (p->self_scm ());
+
+               $$ = sp;
+
+/*
+ TODO: should make alias TimingContext for Score
+*/
+
+               sp-> set_mus_property ("context-type", ly_str02scm ( "Score"));
        }
        ;
 
 command_req:
-       shorthand_command_req
-       | verbose_command_req semicolon { $$ = $1; }
+       shorthand_command_req   { $$ = $1; }
+       | verbose_command_req   { $$ = $1; }
        ;
 
 shorthand_command_req:
@@ -897,15 +1133,15 @@ shorthand_command_req:
        }
        | '['           {
                Span_req*b= new Span_req;
-               b->span_dir_ = START;
-               b->span_type_str_ = "beam";
+               b->set_span_dir (START);
+               b->set_mus_property ("span-type", ly_str02scm ("beam"));
                $$ =b;
        }
        | ']'           {
-            Span_req*b= new Span_req;
-            b->span_dir_ = STOP;
-            b->span_type_str_ = "beam";
-            $$ = b;
+               Span_req*b= new Span_req;
+               b->set_span_dir ( STOP);
+               b->set_mus_property ("span-type", ly_str02scm ("beam"));
+               $$ = b;
        }
        | BREATHE {
                $$ = new Breathing_sign_req;
@@ -914,59 +1150,45 @@ shorthand_command_req:
 
 
 verbose_command_req:
-       
-       BAR STRING                      {
-               $$ = new Bar_req (ly_scm2string ($2));
-       }
-       | COMMANDSPANREQUEST bare_int STRING {
+       COMMANDSPANREQUEST bare_int STRING { /*TODO: junkme */
                Span_req * sp_p = new Span_req;
-               sp_p-> span_dir_  = Direction($2);
-               sp_p->span_type_str_ = ly_scm2string ($3);
+               sp_p-> set_span_dir ( Direction ($2));
+               sp_p->set_mus_property ("span-type",$3);
                sp_p->set_spot (THIS->here_input ());
                $$ = sp_p;
        }
-       | MARK  {
+       | MARK DEFAULT  {
                Mark_req * m = new Mark_req;
                $$ = m;
        }
-       | MARK STRING {
+       | MARK scalar {
                Mark_req *m = new Mark_req;
                m->set_mus_property ("label", $2);
                $$ = m;
 
        }
-       | MARK bare_unsigned {
-               Mark_req *m = new Mark_req;
-               m->set_mus_property ("label",  gh_int2scm ($2));
-               $$ = m;
-       }
+       | PENALTY SCM_T         {
 
-       | TIME_T bare_unsigned '/' bare_unsigned        {
-               Time_signature_change_req *m = new Time_signature_change_req;
-               m->beats_i_ = $2;
-               m->one_beat_i_=$4;
-               $$ = m;
-       }
-       | PENALTY bare_int      {
+               
                Break_req * b = new Break_req;
-               b->penalty_f_ = $2 / 100.0;
+               SCM s = $2;
+               if (!gh_number_p (s))
+                       s  =gh_int2scm (0);
+
+               b->set_mus_property ("penalty", s);
                b->set_spot (THIS->here_input ());
                $$ = b;
        }
        | SKIP duration_length {
                Skip_req * skip_p = new Skip_req;
-               skip_p->duration_ = *$2;
-               delete $2; // ugh
+               skip_p->set_mus_property ("duration", $2);
+
                $$ = skip_p;
        }
        | tempo_request {
                $$ = $1;
        }
-       | CLEF STRING {
-               $$ = new Clef_change_req (ly_scm2string ($2));
-
-       }
-       | KEY {
+       | KEY DEFAULT {
                Key_change_req *key_p= new Key_change_req;
                $$ = key_p;
        }
@@ -974,7 +1196,7 @@ verbose_command_req:
                Key_change_req *key_p= new Key_change_req;
                
                key_p->set_mus_property ("pitch-alist", $3);
              ((Music* )key_p)->transpose (* $2);
((Music* )key_p)->transpose (* unsmob_pitch ($2));
                $$ = key_p; 
        }
        ;
@@ -1003,7 +1225,7 @@ request_that_take_dir:
                SCM s = THIS->lexer_p_->lookup_identifier ("dash-" + ly_scm2string ($1));
                Articulation_req *a = new Articulation_req;
                if (gh_string_p (s))
-                       a->articulation_str_ = ly_scm2string (s);
+                       a->set_mus_property ("articulation-type", s);
                else THIS->parser_error (_ ("Expecting string as script definition"));
                $$ = a;
        }
@@ -1012,7 +1234,7 @@ request_that_take_dir:
 request_with_dir:
        script_dir request_that_take_dir        {
                if (Script_req * gs = dynamic_cast<Script_req*> ($2))
-                       gs->dir_ = Direction ($1);
+                       gs->set_direction (Direction ($1));
                else if ($1)
                        $2->origin ()->warning (_ ("Can't specify direction for this request"));
                $$ = $2;
@@ -1024,33 +1246,48 @@ verbose_request:
                $$ = dynamic_cast<Request*> (unsmob_music ($1)->clone ());
                $$->set_spot (THIS->here_input ());
        }
-       | TEXTSCRIPT STRING STRING      {
-               Text_script_req *ts_p = new Text_script_req;
-               ts_p-> text_str_ = ly_scm2string ($2);
-               ts_p-> style_str_ = ly_scm2string ($3);
-               ts_p->set_spot (THIS->here_input ());
-
-               $$ = ts_p;
+       | DYNAMICSCRIPT embedded_scm {
+               /*
+                       TODO: junkme, use text-type == dynamic
+               */
+               Text_script_req *d = new Text_script_req;
+               d->set_mus_property ("text-type" , ly_symbol2scm ("dynamic"));
+               d->set_mus_property ("text", $2);
+               d->set_spot (THIS->here_input ());
+               $$ = d;
        }
        | SPANREQUEST bare_int STRING {
                Span_req * sp_p = new Span_req;
-               sp_p->span_dir_  = Direction($2);
-               sp_p->span_type_str_ = ly_scm2string ($3);
+               sp_p->set_span_dir ( Direction ($2));
+               sp_p->set_mus_property ("span-type", $3);
                sp_p->set_spot (THIS->here_input ());
                $$ = sp_p;
        }
-       | tremolo_type  {
-               Tremolo_req* a = new Tremolo_req;
+       | tremolo_type  {
+               Tremolo_req* a = new Tremolo_req;
+               a->set_spot (THIS->here_input ());
+               a->set_mus_property ("tremolo-type", gh_int2scm ($1));
+               $$ = a;
+        }
+       | SCRIPT STRING         { 
+               Articulation_req * a = new Articulation_req;
+               a->set_mus_property ("articulation-type", $2);
                a->set_spot (THIS->here_input ());
-               a->type_i_ = $1;
                $$ = a;
        }
-       | SCRIPT STRING         { 
-               Articulation_req * a = new Articulation_req;
-               a->articulation_str_ = ly_scm2string ($2);
+       /*
+duh, junk this syntax from the parser, if possible. 
+       */
+       | ARPEGGIO {
+               Arpeggio_req *a = new Arpeggio_req;
                a->set_spot (THIS->here_input ());
                $$ = a;
        }
+       | GLISSANDO {
+               Glissando_req *g = new Glissando_req;
+               g->set_spot /* No pun intended */ (THIS->here_input ());
+               $$ = g;
+       }       
        ;
 
 sup_quotes:
@@ -1071,58 +1308,73 @@ sub_quotes:
        }
        ;
 
-steno_musical_pitch:
+steno_pitch:
        NOTENAME_PITCH  {
                $$ = $1;
        }
        | NOTENAME_PITCH sup_quotes     {
-               $$ = $1;
-               $$->octave_i_ +=  $2;
+               Pitch p = *unsmob_pitch ($1);
+               p.octave_i_ +=  $2;
+               $$ = p.smobbed_copy ();
        }
        | NOTENAME_PITCH sub_quotes      {
-               $$ = $1;
-               $$->octave_i_ += - $2;
+               Pitch p =* unsmob_pitch ($1);
+
+               p.octave_i_ +=  -$2;
+               $$ = p.smobbed_copy ();
+
        }
        ;
 
+/*
+ugh. duplication
+*/
+
 steno_tonic_pitch:
        TONICNAME_PITCH {
                $$ = $1;
        }
        | TONICNAME_PITCH sup_quotes    {
-               $$ = $1;
-               $$->octave_i_ +=  $2;
+               Pitch p = *unsmob_pitch ($1);
+               p.octave_i_ +=  $2;
+               $$ = p.smobbed_copy ();
        }
        | TONICNAME_PITCH sub_quotes     {
-               $$ = $1;
-               $$->octave_i_ += - $2;
+               Pitch p =* unsmob_pitch ($1);
+
+               p.octave_i_ +=  -$2;
+               $$ = p.smobbed_copy ();
+
        }
        ;
 
-musical_pitch:
-       steno_musical_pitch {
+pitch:
+       steno_pitch {
+               $$ = $1;
+       }
+       | explicit_pitch {
                $$ = $1;
        }
-       | MUSICAL_PITCH embedded_scm {
-               int sz = scm_ilength ($2);
-               if (sz != 3) {
-                       THIS->parser_error (_f ("Expecting %d arguments", 3));
-                       $2 = gh_list (gh_int2scm (0), gh_int2scm (0), gh_int2scm (0), SCM_UNDEFINED);
+       ;
+
+explicit_pitch:
+       PITCH embedded_scm {
+               $$ = $2;
+               if (!unsmob_pitch ($2)) {
+                       THIS->parser_error (_f ("Expecting musical-pitch value", 3));
+                        $$ = Pitch ().smobbed_copy ();
                }
-               $$ = new Musical_pitch ($2);
        }
        ;
 
 explicit_duration:
        DURATION embedded_scm   {
-               $$ = new Duration;
-               if (scm_ilength ($2) == 2)
-                       {
-                       $$-> durlog_i_ = gh_scm2int (gh_car($2));
-                       $$-> dots_i_ = gh_scm2int (gh_cadr($2));
-                       }
-               else
-                       THIS->parser_error (_("Must have 2 arguments for duration"));
+               $$ = $2;
+               if (!unsmob_duration ($2))
+               {
+                       THIS->parser_error (_ ("Must have duration object"));
+                       $$ = Duration ().smobbed_copy ();
+               }
        }
        ;
 
@@ -1145,24 +1397,29 @@ hyphen_req:
 close_request:
        close_request_parens {
                $$ = $1;
-               dynamic_cast<Span_req*> ($$)->span_dir_ = START;
+               dynamic_cast<Span_req*> ($$)->set_span_dir ( START);
        }
        
 close_request_parens:
        '('     {
                Span_req* s= new Span_req;
                $$ = s;
-               s->span_type_str_ = "slur";
+               s->set_mus_property ("span-type", ly_str02scm ( "slur"));
+       }
+       | E_OPEN        {
+               Span_req* s= new Span_req;
+               $$ = s;
+               s->set_mus_property ("span-type", ly_str02scm ( "phrasing-slur"));
        }
        | E_SMALLER {
                Span_req*s =new Span_req;
                $$ = s;
-               s->span_type_str_ = "crescendo";
+               s->set_mus_property ("span-type", ly_str02scm ( "crescendo"));
        }
        | E_BIGGER {
                Span_req*s =new Span_req;
                $$ = s;
-               s->span_type_str_ = "decrescendo";
+               s->set_mus_property ("span-type", ly_str02scm ("decrescendo"));
        }
        ;
 
@@ -1170,46 +1427,59 @@ close_request_parens:
 open_request:
        open_request_parens {
                $$ = $1;
-               dynamic_cast<Span_req*> ($$)->span_dir_ = STOP;
+               dynamic_cast<Span_req*> ($$)->set_span_dir (STOP);
        }
        ;
 
 open_request_parens:
        E_EXCLAMATION   {
                Span_req *s =  new Span_req;
-               s->span_type_str_ = "crescendo";
+               s->set_mus_property ("span-type", ly_str02scm ( "crescendo"));
+
                $$ = s;
        }
        | ')'   {
                Span_req* s= new Span_req;
                $$ = s;
-               s->span_type_str_ = "slur";
+               s->set_mus_property ("span-type", ly_str02scm ( "slur"));
+       }
+       | E_CLOSE       {
+               Span_req* s= new Span_req;
+               $$ = s;
+               s->set_mus_property ("span-type", ly_str02scm ( "phrasing-slur"));
        }
        ;
 
 gen_text_def:
-       string {
-               Text_script_req *t  = new Text_script_req;
+       embedded_scm {
+               Text_script_req *t = new Text_script_req;
+               t->set_mus_property ("text", $1);
+               t->set_spot (THIS->here_input ());
+               $$ = t;
+       }
+       | string {
+               Text_script_req *t = new Text_script_req;
+               t->set_mus_property ("text", $1);
+               t->set_spot (THIS->here_input ());
                $$ = t;
-               t->text_str_ = ly_scm2string ($1);
-
-               $$->set_spot (THIS->here_input ());
        }
        | DIGIT {
-               Text_script_req* t  = new Text_script_req;
+               String ds = to_str ($1);
+               Text_script_req* t = new Text_script_req;
+
+               t->set_mus_property ("text",  ly_str02scm (ds.ch_C ()));
+               t->set_mus_property ("text-type" , ly_symbol2scm ("finger"));
+               t->set_spot (THIS->here_input ());
                $$ = t;
-               t->text_str_ = to_str ($1);
-               t->style_str_ = "finger";
-               $$->set_spot (THIS->here_input ());
        }
        ;
 
 script_abbreviation:
        '^'             {
-               $$ = gh_str02scm  ("hat");
+               $$ = gh_str02scm ("hat");
        }
        | '+'           {
-               $$ = gh_str02scm("plus");
+               $$ = gh_str02scm ("plus");
        }
        | '-'           {
                $$ = gh_str02scm ("dash");
@@ -1241,53 +1511,75 @@ pre_requests:
        }
        ;
 
-absolute_musical_pitch:
-       steno_musical_pitch     {
+absolute_pitch:
+       steno_pitch     {
                $$ = $1;
        }
        ;
 
 duration_length:
-       steno_duration {
+       multiplied_duration {
                $$ = $1;
        }
-       | duration_length '*' bare_unsigned {
-               $$->tuplet_iso_i_ *= $3;
-       }
-       | duration_length '/' bare_unsigned {
-               $$->tuplet_type_i_ *= $3;
-       }
-       ;
-
-entered_notemode_duration:
-       steno_duration  {
-               THIS->set_last_duration ($1);
-       }
+       | explicit_duration {
+               $$ = $1;
+       }       
        ;
 
 optional_notemode_duration:
        {
-               $$ = new Duration (THIS->default_duration_);
+               $$ = THIS->default_duration_.smobbed_copy ();
        }
-       | entered_notemode_duration {
+       | multiplied_duration   {
                $$ = $1;
        }
+       | explicit_duration {
+               $$ = $1;
+       }       
        ;
 
 steno_duration:
-       bare_unsigned           {
-               $$ = new Duration;
+       bare_unsigned dots              {
+               int l = 0;
                if (!is_duration_b ($1))
                        THIS->parser_error (_f ("not a duration: %d", $1));
-               else {
-                       $$->durlog_i_ = intlog2 ($1);
-                    }
+               else
+                       l =  intlog2 ($1);
+
+               $$ = Duration (l, $2).smobbed_copy ();
+
+               THIS->set_last_duration (unsmob_duration ($$));
+       }
+       | DURATION_IDENTIFIER dots      {
+               Duration *d =unsmob_duration ($1);
+               Duration k (d->duration_log (),d->dot_count () + $2);
+               $$ = k.smobbed_copy ();
+
+               THIS->set_last_duration (unsmob_duration ($$));
+       }
+       ;
+
+
+
+
+multiplied_duration:
+       steno_duration {
+               $$ = $1;
+       }
+       | multiplied_duration '*' bare_unsigned {
+               $$ = unsmob_duration ($$)->compressed ( $3) .smobbed_copy ();
        }
-       | DURATION_IDENTIFIER   {
-               $$ = $1->access_content_Duration (true);
+       | multiplied_duration '/' bare_unsigned {
+               $$ = unsmob_duration ($$)->compressed (Moment (1,$3)).smobbed_copy ();
+       }
+       ;
+
+dots:
+       /* empty */     {
+               $$ = 0;
        }
-       | steno_duration '.'    {
-               $$->dots_i_ ++;
+       | dots '.' {
+               $$ ++;
        }
        ;
 
@@ -1305,27 +1597,30 @@ tremolo_type:
 
 
 simple_element:
-       musical_pitch exclamations questions optional_notemode_duration {
+       pitch exclamations questions optional_notemode_duration {
                if (!THIS->lexer_p_->note_state_b ())
                        THIS->parser_error (_ ("Have to be in Note mode for notes"));
 
-
                Note_req *n = new Note_req;
                
-               n->pitch_ = *$1;
-               n->duration_ = *$4;
+               n->set_mus_property ("pitch", $1);
+               n->set_mus_property ("duration", $4);
 
-               n->cautionary_b_ = $3 % 2;
-               n->forceacc_b_ = $2 % 2 || n->cautionary_b_;
+               if ($3 % 2)
+                       n->set_mus_property ("cautionary", SCM_BOOL_T);
+               if ($2 % 2 || $3 % 2)
+                       n->set_mus_property ("force-accidental", SCM_BOOL_T);
 
+               Simultaneous_music*v = new Request_chord (SCM_EOL);
+               v->set_mus_property ("elements", gh_list (n->self_scm (), SCM_UNDEFINED));
+               
+/*
+FIXME: location is one off, since ptich & duration don't contain origin refs. 
+*/
+               v->set_spot (THIS->here_input ());
+               n->set_spot (THIS->here_input ());
 
-               Simultaneous_music*v = new Request_chord (gh_list (n->self_scm (), SCM_UNDEFINED));
-               v->set_spot ($1->spot ());
-               n->set_spot ($1->spot ());
                $$ = v;
-
-               delete $1;
-               delete $4;
        }
        | RESTNAME optional_notemode_duration           {
 
@@ -1333,53 +1628,58 @@ simple_element:
                  if (ly_scm2string ($1) =="s")
                    { /* Space */
                      Skip_req * skip_p = new Skip_req;
-                     skip_p->duration_ = *$2;
+                     skip_p->set_mus_property ("duration" ,$2);
 
-                     skip_p->set_spot (THIS->here_input());
+                     skip_p->set_spot (THIS->here_input ());
                        e = skip_p->self_scm ();
                    }
                  else
                    {
                      Rest_req * rest_req_p = new Rest_req;
-                     rest_req_p->duration_ = *$2;
-                     rest_req_p->set_spot (THIS->here_input());
+                     rest_req_p->set_mus_property ("duration", $2);
+                     rest_req_p->set_spot (THIS->here_input ());
                        e = rest_req_p->self_scm ();
                    }
-                 Simultaneous_music* velt_p = new Request_chord (gh_list (e,SCM_UNDEFINED));
-                 velt_p->set_spot (THIS->here_input());
+                 Simultaneous_music* velt_p = new Request_chord (SCM_EOL);
+               velt_p-> set_mus_property ("elements", gh_list (e,SCM_UNDEFINED));
+                 velt_p->set_spot (THIS->here_input ());
+
 
-                 delete $2; // ugh
                  $$ = velt_p;
        }
-       | MEASURES optional_notemode_duration   {
+       | MULTI_MEASURE_REST optional_notemode_duration         {
                Skip_req * sk = new Skip_req;
-               sk->duration_ = *$2;
-               
-
+               sk->set_mus_property ("duration", $2);
                Span_req *sp1 = new Span_req;
                Span_req *sp2 = new Span_req;
-               sp1-> span_dir_ = START;
-               sp2-> span_dir_ = STOP;
-               sp1->span_type_str_ = sp2->span_type_str_ = "rest";
-
-               Request_chord * rqc1 = new Request_chord (gh_list (sp1->self_scm (), SCM_UNDEFINED));
-               Request_chord * rqc2 = new Request_chord (gh_list (sk->self_scm (), SCM_UNDEFINED));;
-               Request_chord * rqc3 = new Request_chord(gh_list (sp2->self_scm (), SCM_UNDEFINED));;
+               sp1-> set_span_dir ( START);
+               sp2-> set_span_dir ( STOP);
+               SCM r = ly_str02scm ("rest");
+               sp1->set_mus_property ("span-type", r);
+               sp2->set_mus_property ("span-type", r);
+
+               Request_chord * rqc1 = new Request_chord (SCM_EOL);
+               rqc1->set_mus_property ("elements", gh_list (sp1->self_scm (), SCM_UNDEFINED));
+               Request_chord * rqc2 = new Request_chord (SCM_EOL);
+               rqc2->set_mus_property ("elements", gh_list (sk->self_scm (), SCM_UNDEFINED));;
+               Request_chord * rqc3 = new Request_chord (SCM_EOL);
+               rqc3->set_mus_property ("elements", gh_list (sp2->self_scm (), SCM_UNDEFINED));;
 
                SCM ms = gh_list (rqc1->self_scm (), rqc2->self_scm (), rqc3->self_scm (), SCM_UNDEFINED);
 
-               $$ = new Sequential_music (ms);
+               $$ = new Sequential_music (SCM_EOL);
+               $$->set_mus_property ("elements", ms);
        }
        | STRING optional_notemode_duration     {
-               if (!THIS->lexer_p_->lyric_state_b ())
-                       THIS->parser_error (_ ("Have to be in Lyric mode for lyrics"));
+
                Lyric_req* lreq_p = new Lyric_req;
-               lreq_p ->text_str_ = ly_scm2string ($1);
-               lreq_p->duration_ = *$2;
-               lreq_p->set_spot (THIS->here_input());
-               Simultaneous_music* velt_p = new Request_chord (gh_list (lreq_p->self_scm (), SCM_UNDEFINED));
+                lreq_p->set_mus_property ("text", $1);
+               lreq_p->set_mus_property ("duration",$2);
+               lreq_p->set_spot (THIS->here_input ());
+               Simultaneous_music* velt_p = new Request_chord (SCM_EOL);
+               velt_p->set_mus_property ("elements", gh_list (lreq_p->self_scm (), SCM_UNDEFINED));
+
 
-               delete  $2; // ugh
                $$= velt_p;
 
        }
@@ -1393,12 +1693,13 @@ simple_element:
 
 chord:
        steno_tonic_pitch optional_notemode_duration chord_additions chord_subtractions chord_inversion chord_bass {
-                $$ = THIS->get_chord (*$1, $3, $4, $5, $6, *$2);
+                $$ = Chord::get_chord ($1, $3, $4, $5, $6, $2);
+               $$->set_spot (THIS->here_input ());
         };
 
 chord_additions: 
        {
-               $$ = new Array<Musical_pitch>;
+               $$ = SCM_EOL;
        } 
        | CHORD_COLON chord_notes {
                $$ = $2;
@@ -1410,14 +1711,13 @@ chord_notes:
                $$ = $1
        }
        | chord_notes '.' chord_step {
-               $$ = $1;
-               $$->concat (*$3);
+               $$ = gh_append2 ($$, $3);
        }
        ;
 
 chord_subtractions: 
        {
-               $$ = new Array<Musical_pitch>;
+               $$ = SCM_EOL;
        } 
        | CHORD_CARET chord_notes {
                $$ = $2;
@@ -1427,58 +1727,59 @@ chord_subtractions:
 
 chord_inversion:
        {
-               $$ = 0;
+               $$ = SCM_EOL;
        }
        | '/' steno_tonic_pitch {
                $$ = $2;
-               $$->set_spot (THIS->here_input ());
        }
        ;
 
 chord_bass:
        {
-               $$ = 0;
+               $$ = SCM_EOL;
        }
        | CHORD_BASS steno_tonic_pitch {
                $$ = $2;
-               $$->set_spot (THIS->here_input ());
        }
        ;
 
 chord_step:
        chord_note {
-               $$ = new Array<Musical_pitch>;
-               $$->push (*$1);
+               $$ = gh_cons ($1, SCM_EOL);
        }
        | CHORDMODIFIER_PITCH {
-               $$ = new Array<Musical_pitch>;
-               $$->push (*$1);
+               $$ = gh_cons ($1, SCM_EOL);
        }
        | CHORDMODIFIER_PITCH chord_note { /* Ugh. */
-               $$ = new Array<Musical_pitch>;
-               $$->push (*$1);
-               $$->push (*$2);
+               $$ = gh_list ($1, $2, SCM_UNDEFINED);
        }
        ;
 
 chord_note:
        bare_unsigned {
-               $$ = new Musical_pitch;
-               $$->notename_i_ = ($1 - 1) % 7;
-               $$->octave_i_ = $1 > 7 ? 1 : 0;
-               $$->accidental_i_ = 0;
+                Pitch m;
+               m.notename_i_ = ($1 - 1) % 7;
+               m.octave_i_ = $1 > 7 ? 1 : 0;
+               m.alteration_i_ = 0;
+
+               $$ = m.smobbed_copy ();
         } 
        | bare_unsigned '+' {
-               $$ = new Musical_pitch;
-               $$->notename_i_ = ($1 - 1) % 7;
-               $$->octave_i_ = $1 > 7 ? 1 : 0;
-               $$->accidental_i_ = 1;
+               Pitch m;
+               m.notename_i_ = ($1 - 1) % 7;
+               m.octave_i_ = $1 > 7 ? 1 : 0;
+               m.alteration_i_ = 1;
+
+
+               $$ = m.smobbed_copy ();
        }
        | bare_unsigned CHORD_MINUS {
-               $$ = new Musical_pitch;
-               $$->notename_i_ = ($1 - 1) % 7;
-               $$->octave_i_ = $1 > 7 ? 1 : 0;
-               $$->accidental_i_ = -1;
+               Pitch m;
+               m.notename_i_ = ($1 - 1) % 7;
+               m.octave_i_ = $1 > 7 ? 1 : 0;
+               m.alteration_i_ = -1;
+
+               $$ = m.smobbed_copy ();
        }
         ;
 
@@ -1513,49 +1814,39 @@ bare_number:
        UNSIGNED        {
                $$ = gh_int2scm ($1);
        }
-       | DIGIT         {
-               $$ = gh_int2scm ($1);
-       }
        | REAL          {
-               $$ = gh_double2scm ($1);
+               $$ = $1;
        }
        | NUMBER_IDENTIFIER             {
                $$ = $1;
        }
        | REAL CM_T     {
-               $$ = gh_double2scm ($1 CM);
+               $$ = gh_double2scm (gh_scm2double ($1) CM );
        }
        | REAL PT_T     {
-               $$ = gh_double2scm ($1 PT);
+               $$ = gh_double2scm (gh_scm2double ($1) PT);
        }
        | REAL IN_T     {
-               $$ = gh_double2scm ($1 INCH);
+               $$ = gh_double2scm (gh_scm2double ($1) INCH);
        }
        | REAL MM_T     {
-               $$ = gh_double2scm ($1 MM);
+               $$ = gh_double2scm (gh_scm2double ($1) MM);
        }
        | REAL CHAR_T   {
-               $$ = gh_double2scm ($1 CHAR);
+               $$ = gh_double2scm (gh_scm2double ($1) CHAR);
        }
        ;
 
 
 bare_unsigned:
-       bare_number {
-               if (scm_integer_p ($1) == SCM_BOOL_T) {
-                       $$ = gh_scm2int ($1);
-
-               } else {
-                       THIS->parser_error (_("need integer number arg"));
-                       $$ = 0;
-               }
-               if ($$ < 0) {
-                       THIS->parser_error (_("Must be positive integer"));
-                       $$ = -$$;
-                       }
-
+       UNSIGNED {
+                       $$ = $1;
+       }
+       | DIGIT {
+               $$ = $1;
        }
        ;
+
 bare_int:
        bare_number {
                if (scm_integer_p ($1) == SCM_BOOL_T)
@@ -1564,7 +1855,7 @@ bare_int:
                        $$ = k;
                } else
                {
-                       THIS->parser_error (_("need integer number arg"));
+                       THIS->parser_error (_ ("need integer number arg"));
                        $$ = 0;
                }
        }
@@ -1598,10 +1889,6 @@ questions:
        ;
 
 
-semicolon:
-       ';'
-       ;
-
 %%
 
 void
@@ -1611,9 +1898,14 @@ My_lily_parser::set_yydebug (bool b)
        yydebug = b;
 #endif
 }
+
+extern My_lily_parser * current_parser;
+
 void
 My_lily_parser::do_yyparse ()
 {
+
+       current_parser = this;;
        yyparse ((void*)this);
 }