source file of the GNU LilyPond music typesetter
- (c) 1997--2000 Han-Wen Nienhuys <hanwen@cs.uu.nl>
+ (c) 1997--2005 Han-Wen Nienhuys <hanwen@cs.uu.nl>
*/
-#include "music-output-def.hh"
#include "translator-group.hh"
-#include "translator.hh"
-#include "debug.hh"
-#include "moment.hh"
-#include "scm-hash.hh"
-#include "killing-cons.tcc"
-#include "translator-def.hh"
-Translator_group::Translator_group (Translator_group const&s)
- : Translator(s)
-{
- iterator_count_ =0;
-
- Scheme_hash_table * tab = new Scheme_hash_table (*s.properties_dict ());
- properties_scm_ = tab->self_scm ();
- scm_unprotect_object (tab->self_scm( ));
-}
-
-Scheme_hash_table*
-Translator_group::properties_dict () const
-{
- return Scheme_hash_table::unsmob (properties_scm_);
-}
+#include "output-def.hh"
+#include "warn.hh"
+#include "scm-hash.hh"
+#include "context-def.hh"
+#include "context.hh"
+#include "main.hh"
+#include "music.hh"
-Translator_group::~Translator_group ()
+Translator_group*
+Translator_group::get_daddy_translator () const
{
-
- //assert (removable_b());
+ return context ()->get_parent_context ()->implementation ();
}
-Translator_group::Translator_group()
-{
- iterator_count_ = 0;
- Scheme_hash_table *tab = new Scheme_hash_table ;
- properties_scm_ = tab->self_scm ();
-
- scm_unprotect_object (tab->self_scm ());
-}
-
void
-Translator_group::check_removal()
+translator_each (SCM list, Translator_method method)
{
- SCM next = SCM_EOL;
- for (SCM p = trans_group_list_; gh_pair_p (p); p = next)
- {
- next = gh_cdr (p);
-
- Translator_group *trg = dynamic_cast<Translator_group*> (unsmob_translator (gh_car (p)));
-
- trg->check_removal ();
- if (trg->removable_b())
- terminate_translator (trg);
- }
+ for (SCM p = list; scm_is_pair (p); p = scm_cdr (p))
+ (unsmob_translator (scm_car (p))->*method) ();
}
-SCM
-Translator_group::add_translator (SCM list, Translator *t)
-{
- list = gh_append2 (list, gh_cons (t->self_scm (), SCM_EOL));
- t->daddy_trans_l_ = this;
- t->output_def_l_ = output_def_l_;
- t->add_processing ();
-
- return list;
-}
void
-Translator_group::add_group_translator (Translator *t)
+Translator_group::initialize ()
{
- trans_group_list_ = add_translator (trans_group_list_,t);
+ SCM tab = scm_make_vector (scm_int2num (19), SCM_BOOL_F);
+ context ()->set_property ("acceptHashTable", tab);
}
-
bool
-Translator_group::removable_b() const
+translator_accepts_any_of (Translator*tr, SCM ifaces)
{
- return trans_group_list_ == SCM_EOL && ! iterator_count_;
+ SCM ack_ifs = scm_assoc (ly_symbol2scm ("events-accepted"),
+ tr->translator_description ());
+ ack_ifs = scm_cdr (ack_ifs);
+ for (SCM s = ifaces; scm_is_pair (s); s = scm_cdr (s))
+ if (scm_c_memq (scm_car (s), ack_ifs) != SCM_BOOL_F)
+ return true;
+ return false;
}
-Translator_group *
-Translator_group::find_existing_translator_l (String n, String id)
+SCM
+find_accept_translators (SCM gravlist, SCM ifaces)
{
- if (is_alias_b (n) && (id_str_ == id || id.empty_b ()))
- return this;
-
- Translator_group* r = 0;
- for (SCM p = trans_group_list_; !r && gh_pair_p (p); p = gh_cdr (p))
+ SCM l = SCM_EOL;
+ for (SCM s = gravlist; scm_is_pair (s); s = scm_cdr (s))
{
- Translator * t = unsmob_translator (gh_car (p));
-
- r = dynamic_cast<Translator_group*> (t)->find_existing_translator_l (n, id);
+ Translator* tr = unsmob_translator (scm_car (s));
+ if (translator_accepts_any_of (tr, ifaces))
+ l = scm_cons (tr->self_scm (), l);
}
+ l = scm_reverse_x (l, SCM_EOL);
- return r;
+ return l;
}
-
-
-
-Translator_group*
-Translator_group::find_create_translator_l (String n, String id)
+bool
+Translator_group::try_music (Music* m)
{
- Translator_group * existing = find_existing_translator_l (n,id);
- if (existing)
- return existing;
+ SCM tab = get_property ("acceptHashTable");
+ SCM name = scm_sloppy_assq (ly_symbol2scm ("name"),
+ m->get_property_alist (false));
- Link_array<Translator_def> path
- = unsmob_translator_def (definition_)->path_to_acceptable_translator (ly_str02scm ((char*)n.ch_C()), output_def_l ());
+ if (!scm_is_pair (name))
+ return false;
- if (path.size ())
+ name = scm_cdr (name);
+ SCM accept_list = scm_hashq_ref (tab, name, SCM_UNDEFINED);
+ if (accept_list == SCM_BOOL_F)
{
- Translator_group * current = this;
-
- // start at 1. The first one (index 0) will be us.
- for (int i=0; i < path.size (); i++)
- {
- Translator_group * new_group = path[i]->instantiate (output_def_l_);
-
- current->add_group_translator (new_group);
- current = new_group;
- }
- current->id_str_ = id;
- return current;
+ accept_list = find_accept_translators (get_simple_trans_list (),
+ m->get_property ("types"));
+ scm_hashq_set_x (tab, name, accept_list);
}
- Translator_group *ret = 0;
- if (daddy_trans_l_)
- ret = daddy_trans_l_->find_create_translator_l (n,id);
- else
+ for (SCM p = accept_list; scm_is_pair (p); p = scm_cdr (p))
{
- warning (_f ("can't find or create `%s' called `%s'", n, id));
- ret =0;
+ Translator * t = unsmob_translator (scm_car (p));
+ if (t && t->try_music (m))
+ return true;
}
- return ret;
+ return false;
}
-bool
-Translator_group::try_music_on_nongroup_children (Music *m)
-{
- bool hebbes_b =false;
-
- for (SCM p = simple_trans_list_; !hebbes_b && gh_pair_p (p); p = gh_cdr (p))
- {
- hebbes_b = unsmob_translator (gh_car (p))->try_music (m);
- }
- return hebbes_b;
-}
-
-bool
-Translator_group::do_try_music (Music* m)
-{
- bool hebbes_b = try_music_on_nongroup_children (m);
-
- if (!hebbes_b && daddy_trans_l_)
- hebbes_b = daddy_trans_l_->try_music (m);
- return hebbes_b ;
-}
-
-int
-Translator_group::depth_i() const
+SCM
+Translator_group::get_simple_trans_list ()
{
- return (daddy_trans_l_) ? daddy_trans_l_->depth_i() + 1 : 0;
+ return simple_trans_list_;
}
-Translator_group*
-Translator_group::ancestor_l (int level)
-{
- if (!level || !daddy_trans_l_)
- return this;
-
- return daddy_trans_l_->ancestor_l (level-1);
-}
void
-Translator_group::terminate_translator (Translator*r_l)
+recurse_over_translators (Context * c, Translator_method ptr, Direction dir)
{
- r_l->removal_processing();
+ Translator_group * tg
+ = dynamic_cast<Translator_group*> (c->implementation ());
+
/*
- Return value ignored. GC does the rest.
+ Top down:
*/
- remove_translator_p (r_l);
-}
-
-
-/**
- Remove a translator from the hierarchy.
- */
-Translator *
-Translator_group::remove_translator_p (Translator*trans_l)
-{
- assert (trans_l);
-
- trans_group_list_ = scm_delq_x (trans_l->self_scm (), trans_group_list_);
- trans_l->daddy_trans_l_ = 0;
- return trans_l;
-}
-
-#if 0
-/*
- should not use, instead: use properties to communicate between engravers.
- */
-Translator*
-Translator_group::get_simple_translator (String type) const
-{
- for (SCM p = simple_trans_list_; gh_pair_p (p); p =gh_cdr (p))
- {
- if (classname (unsmob_translator (gh_car (p))) == type)
- return unsmob_translator (gh_car (p));
- }
- if (daddy_trans_l_)
- return daddy_trans_l_->get_simple_translator (type);
- return 0;
-}
-#endif
-
-bool
-Translator_group::is_bottom_translator_b () const
-{
- return !gh_string_p (unsmob_translator_def (definition_)->default_child_context_name ());
-
-}
-
-Translator_group*
-Translator_group::get_default_interpreter()
-{
- if (!is_bottom_translator_b ())
+ if (dir == DOWN)
{
- SCM nm = unsmob_translator_def (definition_)->default_child_context_name ();
- SCM st = output_def_l ()->find_translator_l (nm);
-
- Translator_def *t = unsmob_translator_def (st);
- if (!t)
- {
- warning (_f ("can't find or create: `%s'", ly_scm2string (nm).ch_C()));
- t = unsmob_translator_def (this->definition_);
- }
- Translator_group *tg = t->instantiate (output_def_l_);
- add_group_translator (tg);
+ translator_each (tg->get_simple_trans_list (),
+ ptr);
- if (!tg->is_bottom_translator_b ())
- return tg->get_default_interpreter ();
- else
- return tg;
+ (tg->*ptr) ();
}
- return this;
-}
-static void
-static_each (SCM list, Method_pointer method)
-{
- for (SCM p = list; gh_pair_p (p); p = gh_cdr(p))
- (unsmob_translator (gh_car (p))->*method) ();
-
-}
-
-void
-Translator_group::each (Method_pointer method)
-{
- static_each (simple_trans_list_, method);
- static_each (trans_group_list_, method);
-}
-
-
-
-void
-Translator_group::do_add_processing ()
-{
- unsmob_translator_def (definition_)->apply_property_operations (this);
- for (SCM s = simple_trans_list_; gh_pair_p (s) ; s = gh_cdr (s))
+ for (SCM s = c->children_contexts (); scm_is_pair (s);
+ s = scm_cdr (s))
{
- Translator * t = unsmob_translator (gh_car (s));
- t->add_processing ();
+ recurse_over_translators (unsmob_context (scm_car (s)), ptr, dir);
}
-}
-/*
- PROPERTIES
- */
-Translator_group*
-Translator_group::where_defined (SCM sym) const
-{
- if (properties_dict ()->elem_b (sym))
+ if (dir == UP)
{
- return (Translator_group*)this;
- }
-
- return (daddy_trans_l_) ? daddy_trans_l_->where_defined (sym) : 0;
-}
-
-SCM
-Translator_group::get_property (SCM sym) const
-{
- SCM val =SCM_UNDEFINED;
- if (properties_dict ()->try_retrieve (sym, &val))
- return val;
+ translator_each (tg->get_simple_trans_list (),
+ ptr);
- if (daddy_trans_l_)
- return daddy_trans_l_->get_property (sym);
-
- return val;
-}
-
-void
-Translator_group::set_property (String id, SCM val)
-{
- set_property (ly_symbol2scm (id.ch_C()), val);
-}
-
-void
-Translator_group::set_property (SCM sym, SCM val)
-{
- properties_dict ()->set (sym, val);
-}
-
-/*
- Push or pop (depending on value of VAL) a single entry (ELTPROP . VAL)
- entry from a translator property list by name of PROP
-*/
-void
-Translator_group::execute_single_pushpop_property (SCM prop, SCM eltprop, SCM val)
-{
- if (gh_symbol_p(prop))
- {
- if (val != SCM_UNDEFINED)
- {
- SCM prev = get_property (prop);
-
- /*
- we don't tack onto SCM_UNDEFINED, because it creates
- errors down the line, if we do scm_assoc().
- */
- if (gh_pair_p (prev) || prev == SCM_EOL)
- {
- bool ok = true;
-
- SCM errport = scm_current_error_port ();
-
- SCM meta = scm_assoc (ly_symbol2scm ("meta"), prev);
- SCM props = scm_assoc (ly_symbol2scm ("properties"), gh_cdr (meta));
- SCM propdesc = scm_assoc (eltprop, gh_cdr (props));
- if (!gh_pair_p (propdesc))
- {
- scm_puts (_("Couldn't find property description for #'").ch_C(),errport);
- scm_display (eltprop, errport);
-
- scm_puts (_(" in element description ").ch_C(),errport);
- scm_display (prop, errport);
-
- scm_puts (_(". Perhaps you made a typing error?\n").ch_C(),errport);
- }
- else
- {
-
- SCM predicate = gh_cadr (propdesc);
- if (gh_call1 (predicate, val) == SCM_BOOL_F)
- {
- ok = false;
- scm_puts (_("Failed typecheck for #'").ch_C (),errport);
- scm_display (eltprop,errport);
- scm_puts ( _(", value ").ch_C (), errport);
- scm_display (val, errport);
- scm_puts (_(" must be of type ").ch_C (), errport);
- SCM typefunc = scm_eval2 (ly_symbol2scm ("type-name"), SCM_EOL);
-
- scm_display (gh_call1 (typefunc, predicate), errport);
- scm_puts ("\n", errport);
- }
- }
-
- if (ok)
- {
- prev = gh_cons (gh_cons (eltprop, val), prev);
- set_property (prop, prev);
- }
- }
- else
- {
- // warning here.
- }
-
- }
- else
- {
- SCM prev = get_property (prop);
-
- SCM newprops= SCM_EOL ;
- while (gh_pair_p (prev) && gh_caar (prev) != eltprop)
- {
- newprops = gh_cons (gh_car (prev), newprops);
- prev = gh_cdr (prev);
- }
-
- if (gh_pair_p (prev))
- {
- newprops = scm_reverse_x (newprops, gh_cdr (prev));
- set_property (prop, newprops);
- }
- }
+ (tg->*ptr) ();
}
}
-
-
-
-
-/*
- STUBS
-*/
-void
-Translator_group::do_pre_move_processing ()
-{
- each (&Translator::pre_move_processing);
-}
-
-void
-Translator_group::do_post_move_processing ()
-{
- each (&Translator::post_move_processing);
-}
-
-void
-Translator_group::do_process_music ()
-{
- each (&Translator::process_music);
-}
-
-void
-Translator_group::do_creation_processing ()
+Translator_group::Translator_group()
{
- each (&Translator::creation_processing);
+ simple_trans_list_ = SCM_EOL;
}
void
-Translator_group::do_removal_processing ()
+Translator_group::derived_mark () const
{
- each (&Translator::removal_processing);
+ scm_gc_mark (simple_trans_list_);
}
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